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\t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 177);\n","import tingle from 'tingle.js';\n\n/* eslint-disable new-cap */\n\n/**\n * This function retrieves another page of content to display in the content search grid\n * @param {Boolean} footer - HTML string\n * @return {Tingle} - https://robinparisi.github.io/tingle/\n */\nconst newModal = (footer, cssClass = []) => {\n    // set optionts\n    const modalOptions = {\n        closeMethods: ['overlay', 'button', 'escape'],\n        cssClass,\n        onClose: () => {\n            modal.destroy();\n        },\n        onOpen: () => { $('html').addClass('html-tingle-enabled'); },\n        beforeClose: () => {\n            if (($('.jsPersonalizationToolModal.tingle-modal--visible').length <= 0) || ($('.tingle-modal.tingle-modal--visible').length < 2)) {\n                $('html').removeClass('html-tingle-enabled');\n            }\n            return true;\n        }\n    };\n    if (footer) { modalOptions.footer = true; };\n\n    // create modal\n    const modal = new tingle.modal(modalOptions);\n\n    return modal;\n};\n\n/**\n * This function retrieves another page of content to display in the content search grid\n * @param {String} selectorID - ID of the modal DOM element to clone\n * @return {Tingle} - https://robinparisi.github.io/tingle/\n */\nconst newModalFromSelector = (selectorID, footer, cssClass = [], onClose = null) => {\n    // set optionts\n    const modalOptions = {\n        closeMethods: ['overlay', 'escape'],\n        cssClass,\n        onClose: () => {\n            modal.destroy();\n            if (typeof onClose === 'function') {\n                onClose();\n            }\n        },\n        onOpen: () => { $('html').addClass('html-tingle-enabled'); },\n        beforeClose: () => {\n            if (($('.jsPersonalizationToolModal.tingle-modal--visible').length <= 0) || ($('.tingle-modal.tingle-modal--visible').length < 2)) {\n                $('html').removeClass('html-tingle-enabled');\n            }\n            return true;\n        }\n    };\n    if (footer) { modalOptions.footer = true; };\n\n    // create modal\n    const modal = new tingle.modal(modalOptions);\n\n    // clone content\n    if (selectorID) {\n        const contentModal = document.getElementById(selectorID);\n        if (contentModal) {\n            modal.setContent(contentModal.innerHTML);\n        }\n    }\n\n    return modal;\n};\n\n/**\n * This function retrieves another page of content to display in the content search grid\n * @param {String} html - HTML string\n * @return {Tingle} - https://robinparisi.github.io/tingle/\n */\nconst newModalFromString = (html, footer, cssClass = [], onOpen, onClose) => {\n    // set optionts\n    const modalOptions = {\n        closeMethods: ['overlay', 'button', 'escape'],\n        cssClass,\n        onClose: () => {\n            modal.destroy();\n            if (typeof onClose === 'function') {\n                onClose();\n            }\n        },\n        onOpen: () => {\n            $('html').addClass('html-tingle-enabled');\n            if (typeof onOpen === 'function') {\n                onOpen();\n            }\n        },\n        beforeClose: () => {\n            if (($('.jsPersonalizationToolModal.tingle-modal--visible').length <= 0) || ($('.tingle-modal.tingle-modal--visible').length < 2)) {\n                $('html').removeClass('html-tingle-enabled');\n            }\n            return true;\n        }\n    };\n    if (footer) { modalOptions.footer = true; };\n\n    // create modal\n    const modal = new tingle.modal(modalOptions);\n\n    // add content\n    if (html) {\n        modal.setContent(html);\n    }\n\n    return modal;\n};\n\n/**\n * This function creates a modal starting from supplied options\n * @return {Tingle} - https://robinparisi.github.io/tingle/\n */\nconst newModalWithOptions = (modalOptions) => {\n    // create modal\n    const modal = new tingle.modal(modalOptions);\n\n    return modal;\n};\n\n// modal with forced choice\nconst newModalWithSelector = (html, footer, cssClass = [], onOpen, onClose) => {\n    // set optionts\n    const modalOptions = {\n        closeMethods: [],\n        cssClass,\n        onClose: () => {\n            modal.destroy();\n            if (typeof onClose === 'function') {\n                onClose();\n            }\n        },\n        onOpen: () => {\n            $('html').addClass('html-tingle-enabled');\n            if (typeof onOpen === 'function') {\n                onOpen();\n            }\n        },\n        beforeClose: () => {\n            if (($('.jsPersonalizationToolModal.tingle-modal--visible').length <= 0) || ($('.tingle-modal.tingle-modal--visible').length < 2)) {\n                $('html').removeClass('html-tingle-enabled');\n            }\n            return true;\n        }\n    };\n    if (footer) { modalOptions.footer = true; };\n\n    // create modal\n    const modal = new tingle.modal(modalOptions);\n\n    // add content\n    if (html) {\n        modal.setContent(html);\n    }\n\n    return modal;\n};\n\n/**\n * This class creates a modal without copying or moving any HTML,\n * but simply showing and hiding an existing Node.\n * This is to avoid problems with manipulated elements such as Google Maps\n */\nclass ModalShowHide {\n    constructor (selector = '', newModalType, toPropagateClick, classToPreventHide) {\n        this.$el = $(selector);\n        this.selector = selector;\n        this._scrollposition = 0;\n        this.toPropagateClick = toPropagateClick;\n        this.classToPreventHide = classToPreventHide;\n        if (newModalType) {\n            this.isOpenTypeCustom = false;\n        } else {\n            this.isOpen = false;\n        }\n\n        this.events();\n    }\n\n    show (newModalType) {\n        if (newModalType) {\n            if (this.isOpenTypeCustom) {\n                return;\n            }\n            this.isOpenTypeCustom = true;\n        } else {\n            if (this.isOpen) {\n                return;\n            }\n            this.isOpen = true;\n        }\n\n        // mimic tingle scroll lock\n        this._scrollPosition = window.pageYOffset;\n        $('body').addClass('tingle-enabled');\n        $('html').addClass('html-tingle-enabled');\n        this.$el.parent('.tingle-modal').addClass('tingle-modal--visible');\n    }\n\n    hide (newModalType) {\n        if (newModalType) {\n            if (!this.isOpenTypeCustom) {\n                return;\n            }\n            this.isOpenTypeCustom = false;\n        } else {\n            if (!this.isOpen) {\n                return;\n            }\n            this.isOpen = false;\n        }\n\n        // mimic tingle scroll lock\n        if (($('.jsPersonalizationToolModal.tingle-modal--visible').length <= 0) || ($('.tingle-modal.tingle-modal--visible').length < 2)) {\n            $('body').removeClass('tingle-enabled');\n            $('html').removeClass('html-tingle-enabled');\n            window.scrollTo(0, this._scrollPosition);\n        }\n        this.$el.parent('.tingle-modal').removeClass('tingle-modal--visible');\n    }\n\n    events () {\n        $('body').on('click', '.tingle-modal', (e) => {\n            if ($(e.target).hasClass('tingle-modal') || !$(e.target).closest(this.classToPreventHide)) {\n                var newModalType = $(e.target).data('modalType') || null;\n                this.hide(newModalType);\n                e.stopPropagation();\n            }\n        });\n        $('body').on('click', '.modal-close', (e) => {\n            var newModalType = $(e.target).data('modalType') || null;\n            this.hide(newModalType);\n            e.stopPropagation();\n        });\n\n        if (!this.toPropagateClick) {\n            $('body').on('click', this.selector, (e) => {\n                e.stopPropagation();\n            });\n        }\n    }\n};\n\nexport {\n    newModal,\n    newModalFromSelector,\n    newModalFromString,\n    newModalWithOptions,\n    ModalShowHide,\n    newModalWithSelector\n};\n","!function(t,o){\"function\"==typeof define&&define.amd?define(o):\"object\"==typeof exports?module.exports=o():t.tingle=o()}(this,function(){function t(t){var o={onClose:null,onOpen:null,beforeOpen:null,beforeClose:null,stickyFooter:!1,footer:!1,cssClass:[],closeLabel:\"Close\",closeMethods:[\"overlay\",\"button\",\"escape\"]};this.opts=r({},o,t),this.init()}function o(){this.modalBoxFooter&&(this.modalBoxFooter.style.width=this.modalBox.clientWidth+\"px\",this.modalBoxFooter.style.left=this.modalBox.offsetLeft+\"px\")}function e(){this.modal=document.createElement(\"div\"),this.modal.classList.add(\"tingle-modal\"),0!==this.opts.closeMethods.length&&this.opts.closeMethods.indexOf(\"overlay\")!==-1||this.modal.classList.add(\"tingle-modal--noOverlayClose\"),this.modal.style.display=\"none\",this.opts.cssClass.forEach(function(t){\"string\"==typeof t&&this.modal.classList.add(t)},this),this.opts.closeMethods.indexOf(\"button\")!==-1&&(this.modalCloseBtn=document.createElement(\"button\"),this.modalCloseBtn.classList.add(\"tingle-modal__close\"),this.modalCloseBtnIcon=document.createElement(\"span\"),this.modalCloseBtnIcon.classList.add(\"tingle-modal__closeIcon\"),this.modalCloseBtnIcon.innerHTML=\"×\",this.modalCloseBtnLabel=document.createElement(\"span\"),this.modalCloseBtnLabel.classList.add(\"tingle-modal__closeLabel\"),this.modalCloseBtnLabel.innerHTML=this.opts.closeLabel,this.modalCloseBtn.appendChild(this.modalCloseBtnIcon),this.modalCloseBtn.appendChild(this.modalCloseBtnLabel)),this.modalBox=document.createElement(\"div\"),this.modalBox.classList.add(\"tingle-modal-box\"),this.modalBoxContent=document.createElement(\"div\"),this.modalBoxContent.classList.add(\"tingle-modal-box__content\"),this.modalBox.appendChild(this.modalBoxContent),this.opts.closeMethods.indexOf(\"button\")!==-1&&this.modal.appendChild(this.modalCloseBtn),this.modal.appendChild(this.modalBox)}function s(){this.modalBoxFooter=document.createElement(\"div\"),this.modalBoxFooter.classList.add(\"tingle-modal-box__footer\"),this.modalBox.appendChild(this.modalBoxFooter)}function i(){this._events={clickCloseBtn:this.close.bind(this),clickOverlay:l.bind(this),resize:this.checkOverflow.bind(this),keyboardNav:n.bind(this)},this.opts.closeMethods.indexOf(\"button\")!==-1&&this.modalCloseBtn.addEventListener(\"click\",this._events.clickCloseBtn),this.modal.addEventListener(\"mousedown\",this._events.clickOverlay),window.addEventListener(\"resize\",this._events.resize),document.addEventListener(\"keydown\",this._events.keyboardNav)}function n(t){this.opts.closeMethods.indexOf(\"escape\")!==-1&&27===t.which&&this.isOpen()&&this.close()}function l(t){this.opts.closeMethods.indexOf(\"overlay\")!==-1&&!d(t.target,\"tingle-modal\")&&t.clientX<this.modal.clientWidth&&this.close()}function d(t,o){for(;(t=t.parentElement)&&!t.classList.contains(o););return t}function a(){this.opts.closeMethods.indexOf(\"button\")!==-1&&this.modalCloseBtn.removeEventListener(\"click\",this._events.clickCloseBtn),this.modal.removeEventListener(\"mousedown\",this._events.clickOverlay),window.removeEventListener(\"resize\",this._events.resize),document.removeEventListener(\"keydown\",this._events.keyboardNav)}function r(){for(var t=1;t<arguments.length;t++)for(var o in arguments[t])arguments[t].hasOwnProperty(o)&&(arguments[0][o]=arguments[t][o]);return arguments[0]}function h(){var t,o=document.createElement(\"tingle-test-transition\"),e={transition:\"transitionend\",OTransition:\"oTransitionEnd\",MozTransition:\"transitionend\",WebkitTransition:\"webkitTransitionEnd\"};for(t in e)if(void 0!==o.style[t])return e[t]}var c=h();return t.prototype.init=function(){this.modal||(e.call(this),i.call(this),document.body.insertBefore(this.modal,document.body.firstChild),this.opts.footer&&this.addFooter())},t.prototype.destroy=function(){null!==this.modal&&(a.call(this),this.modal.parentNode.removeChild(this.modal),this.modal=null)},t.prototype.open=function(){var t=this;\"function\"==typeof t.opts.beforeOpen&&t.opts.beforeOpen(),this.modal.style.removeProperty?this.modal.style.removeProperty(\"display\"):this.modal.style.removeAttribute(\"display\"),this._scrollPosition=window.pageYOffset,document.body.classList.add(\"tingle-enabled\"),document.body.style.top=-this._scrollPosition+\"px\",this.setStickyFooter(this.opts.stickyFooter),this.modal.classList.add(\"tingle-modal--visible\"),c?this.modal.addEventListener(c,function o(){\"function\"==typeof t.opts.onOpen&&t.opts.onOpen.call(t),t.modal.removeEventListener(c,o,!1)},!1):\"function\"==typeof t.opts.onOpen&&t.opts.onOpen.call(t),this.checkOverflow()},t.prototype.isOpen=function(){return!!this.modal.classList.contains(\"tingle-modal--visible\")},t.prototype.close=function(){if(\"function\"==typeof this.opts.beforeClose){var t=this.opts.beforeClose.call(this);if(!t)return}document.body.classList.remove(\"tingle-enabled\"),window.scrollTo(0,this._scrollPosition),document.body.style.top=null,this.modal.classList.remove(\"tingle-modal--visible\");var o=this;c?this.modal.addEventListener(c,function t(){o.modal.removeEventListener(c,t,!1),o.modal.style.display=\"none\",\"function\"==typeof o.opts.onClose&&o.opts.onClose.call(this)},!1):(o.modal.style.display=\"none\",\"function\"==typeof o.opts.onClose&&o.opts.onClose.call(this))},t.prototype.setContent=function(t){\"string\"==typeof t?this.modalBoxContent.innerHTML=t:(this.modalBoxContent.innerHTML=\"\",this.modalBoxContent.appendChild(t))},t.prototype.getContent=function(){return this.modalBoxContent},t.prototype.addFooter=function(){s.call(this)},t.prototype.setFooterContent=function(t){this.modalBoxFooter.innerHTML=t},t.prototype.getFooterContent=function(){return this.modalBoxFooter},t.prototype.setStickyFooter=function(t){this.isOverflow()||(t=!1),t?this.modalBox.contains(this.modalBoxFooter)&&(this.modalBox.removeChild(this.modalBoxFooter),this.modal.appendChild(this.modalBoxFooter),this.modalBoxFooter.classList.add(\"tingle-modal-box__footer--sticky\"),o.call(this),this.modalBoxContent.style[\"padding-bottom\"]=this.modalBoxFooter.clientHeight+20+\"px\"):this.modalBoxFooter&&(this.modalBox.contains(this.modalBoxFooter)||(this.modal.removeChild(this.modalBoxFooter),this.modalBox.appendChild(this.modalBoxFooter),this.modalBoxFooter.style.width=\"auto\",this.modalBoxFooter.style.left=\"\",this.modalBoxContent.style[\"padding-bottom\"]=\"\",this.modalBoxFooter.classList.remove(\"tingle-modal-box__footer--sticky\")))},t.prototype.addFooterBtn=function(t,o,e){var s=document.createElement(\"button\");return s.innerHTML=t,s.addEventListener(\"click\",e),\"string\"==typeof o&&o.length&&o.split(\" \").forEach(function(t){s.classList.add(t)}),this.modalBoxFooter.appendChild(s),s},t.prototype.resize=function(){console.warn(\"Resize is deprecated and will be removed in version 1.0\")},t.prototype.isOverflow=function(){var t=window.innerHeight,o=this.modalBox.clientHeight;return o>=t},t.prototype.checkOverflow=function(){this.modal.classList.contains(\"tingle-modal--visible\")&&(this.isOverflow()?this.modal.classList.add(\"tingle-modal--overflow\"):this.modal.classList.remove(\"tingle-modal--overflow\"),!this.isOverflow()&&this.opts.stickyFooter?this.setStickyFooter(!1):this.isOverflow()&&this.opts.stickyFooter&&(o.call(this),this.setStickyFooter(!0)))},{modal:t}});","import {initProdTileCarousel} from './productTileCarousel';\nimport {forceLockScroll, forceUnlockScroll, preventDefault, genericAjaxCall} from '../util/common';\nexport {initProductTile, initSlotCarousel, closeAllQuickAdd};\n\n// SELECTOR ELEMENT CLASS USED LIST\nconst PREVENT_DEFAULT = '.js-prevent-link';\nconst PRODUCT_GRID_PLP = '.js-plp-productGrid';\nconst PRODUCT_TILE = '.js-prodTile';\nconst QUICKADD_BUTTON = '.js-prodTile-quickAdd-button';\nconst QUICKADD_CLOSE = '.js-prodTile-quickAdd-modal-closeQuickAdd';\nconst QUICKADD_MODAL = '.js-prodTile-quickAdd-modal';\nconst QUICKADD_MODAL_OVERFLOW = '.js-prodTile-quickAdd-modal-overflow';\nconst QUICKADD_MODAL_SLIDER = '.js-quickAdd-modal-container';\nconst QUICKADD_PROCEEDBUTTON = '.js-prodTile-quickAdd-modal-confirmButton';\nconst QUICKADD_SIZEBUTTON = '.js-prodTile-quickAdd-modal-sizes-button';\nconst QUICKADD_SIZEBUTTON_SELECTED = '.js-prodTile-quickAdd-modal-size_selected';\nconst QUICKADD_SIZESELECTED_LABEL = '.js-prodTile-quickAdd-modal-sizeSelected';\n\nlet isOpened = false;\n\n// LIST OF STYLE CLASS USED\nconst STYLE_QUICKADD_SIZEBUTTON_SELECTED =\n    'cc-prodTile-quickAdd-modal-sizes-button_selected js-prodTile-quickAdd-modal-size_selected';\nconst QUICKADD_MODAL_OPEN = 'js-prodTile-quickAdd-modal_open';\n\nfunction initProductTile() {\n    if ($('.page').data('action') === 'Search-Show') {\n        initOnlyPLP();\n    } else {\n        initProdTileCarousel();\n        $(QUICKADD_BUTTON).off('click').on('click', openQuickAdd);\n        $(PRODUCT_TILE).off('click').on('click', PREVENT_DEFAULT, preventDefault);\n    }\n\n    if ($('.js-suggestedProducts-container').length) {\n        initSlotCarousel('.js-suggestedProducts-container');\n    }\n\n    if ($('.js-completeLook').length) {\n        initSlotCarousel('.js-completeLook');\n    }\n\n    if ($('.js-completePromo').length) {\n        initSlotCarousel('.js-completePromo');\n    }\n\n    $(window).on('resize', onResizeFunction);\n}\n\nfunction initSlotCarousel(containerClassName) {\n    $(containerClassName)\n        .off('click')\n        .on('click', QUICKADD_BUTTON, openQuickAdd)\n        .on('click', PREVENT_DEFAULT, preventDefault);\n\n    if ($('.js-site-search').hasClass('cc-site-search_open') && !Foundation.MediaQuery.atLeast('large')) {\n        $('.js-prodTile-quickAdd-modal').addClass('js-quickAdd-modal-container');\n    }\n}\n\nfunction initOnlyPLP() {\n    if ($(PRODUCT_GRID_PLP).length > 0) {\n        initProdTileCarousel(PRODUCT_GRID_PLP);\n        initSlotCarousel(PRODUCT_GRID_PLP);\n        removeGridFullBanner();\n    }\n}\n\nfunction removeGridFullBanner () {\n    $('.cc-gridFullBanner-wrp').each(function (i, element) {\n        if ($(element).children().length <= 0) {\n            $(element).remove();\n        }\n    });\n}\n\nfunction openQuickAdd(e) {\n    if (e.currentTarget.classList.contains('analytics-sizeBox') &&\n    e.currentTarget.classList.contains('js-prodTile-quickAdd-button')) {\n        $('body').trigger('product:selectSize', e.currentTarget);\n    }\n    e.preventDefault();\n    e.stopPropagation();\n\n    let $this = $(this);\n    let url = $(this).data('url');\n    let $modal = $(this).siblings(QUICKADD_MODAL);\n    let $modalForSlider = $(QUICKADD_MODAL_SLIDER);\n    let isCompletePromo = false;\n\n    // Needed because we have two modals in position fixed one inside the other\n    if ($('.js-site-search').hasClass('cc-site-search_open') && !Foundation.MediaQuery.atLeast('large')) {\n        $('.js-site-search').after($modalForSlider);\n    }\n\n    if ($(this).closest('.js-hpShoppable').length > 0) {\n        if (Foundation.MediaQuery.atLeast('large')) {\n            openQuickAddShoppable($this, url, $modal);\n            return;\n        } else {\n            $modal = $modalForSlider.first();\n        }\n    } else if (\n        $(this).closest('.cc-emCarouselEditProd').length > 0 &&\n        !Foundation.MediaQuery.atLeast('large')\n    ) {\n        $modal = $modalForSlider.first();\n    } else {\n        if (\n            $(this).closest('.slick-track').length &&\n            $modalForSlider.length &&\n            !Foundation.MediaQuery.atLeast('large')\n        ) {\n            $modal = $modalForSlider.first();\n        } else if (\n            $(this).closest('.cc-completeYourPromo-productCards, .cc-productCarousel-coreMedia').length > 0 &&\n            !Foundation.MediaQuery.atLeast('large')\n        ) {\n            let $quickAddOutsideModal = $('.js-quickAdd-modal-container').eq(0).clone();\n            if ($('body > .js-quickAdd-modal-container').length === 0) {\n                $('body').prepend($quickAddOutsideModal);\n            }\n\n            if ($(this).closest('.cc-completeYourPromo-productCards').length > 0) {\n                isCompletePromo = true;\n            }\n\n            $modal = $('body > .js-quickAdd-modal-container');\n        }\n    }\n\n    const analytics = $this.closest('.js-prodTile').find('.analytics.productListingItem').data();\n    $modal.data('item_list_id', analytics.item_list_id);\n    $modal.data('item_list_name', analytics.item_list_name);\n    $modal.data('index', analytics.index);\n\n    genericAjaxCall(url, null, null, false).then(function (data) {\n        var newDOMModal = $(data).clone();\n        $modal.empty().html(newDOMModal);\n\n        $modal.slideDown({\n            start: function () {\n                $modal.css({display: 'flex'}).addClass(QUICKADD_MODAL_OPEN);\n                $('body').addClass('veiled-for-small-only');\n                if (isCompletePromo) {\n                    $('body').addClass('veiled-for-small-only_higher');\n                }\n            },\n            complete: function () {\n                $modal.on('click', QUICKADD_CLOSE, {modal: $modal}, closeQuickAdd);\n                $modal.on('click', QUICKADD_SIZEBUTTON, {modal: $modal}, prepareAddToCart);\n                searchSelectedSize($modal);\n                if (!Foundation.MediaQuery.atLeast('large')) {\n                    forceLockScroll();\n                    // closeDrawerWithGesture($modal); comment for the moment\n                }\n            },\n        });\n    });\n}\n\nfunction openQuickAddShoppable($this, url, $modal) {\n    if (!isOpened || !$modal.hasClass('quickAdd-opened')) {\n        isOpened = true;\n        // Handle the button rotation when opens in shoppable image banner\n        $this.addClass('cm-rotateQuickAddButton');\n        genericAjaxCall(url, null, null, true).then(function (data) {\n            var newDOMModal = $(data).clone();\n            $modal.empty().html(newDOMModal);\n            $modal\n                .closest('.cc-emShoppable__productCard')\n                .addClass('cc-emShoppable__productCard--opened quickAdd-opened');\n            $modal.addClass('cc-customModalOpened');\n            $('.cc-emShoppableVideo__productCard:not(.cc-active)').removeClass('cc-emShoppable__productCard--opened quickAdd-opened');\n            $('.cc-emShoppableVideo__productCard:not(.cc-active)').find('.js-prodTile-quickAdd-modal').removeClass('cc-customModalOpened');\n            $this.on('click', {modal: $modal}, closeQuickAddShoppable);\n            $modal.on('click', QUICKADD_SIZEBUTTON, {modal: $modal}, prepareAddToCart);\n            searchSelectedSize($modal);\n        });\n    }\n}\n\nfunction closeQuickAdd(e, $modal) {\n    try {\n        e.preventDefault();\n    } catch (exc) {}\n\n    if (!Foundation.MediaQuery.atLeast('large')) {\n        forceUnlockScroll();\n    }\n\n    var modal = $modal ? $modal : e.data.modal;\n\n    modal.slideUp({\n        complete: function () {\n            modal.removeClass(QUICKADD_MODAL_OPEN);\n            $('body').removeClass('veiled-for-small-only veiled-for-small-only_higher');\n        },\n    });\n    modal.off('click', QUICKADD_CLOSE).off('click', QUICKADD_SIZEBUTTON);\n    modal.find(QUICKADD_PROCEEDBUTTON).off('click');\n}\n\nfunction closeQuickAddShoppable(e) {\n    try {\n        e.preventDefault();\n        e.stopPropagation();\n    } catch (exc) {}\n\n    let $modal = e.data.modal;\n    isOpened = false;\n    // Handle the button rotation when closes in shoppable image banner\n    const closeQuickButton = $(e.currentTarget);\n    if (closeQuickButton.hasClass('cm-rotateQuickAddButton')) {\n        closeQuickButton.removeClass('cm-rotateQuickAddButton');\n    }\n\n    $modal\n        .closest('.cc-emShoppable__productCard')\n        .removeClass('cc-emShoppable__productCard--opened quickAdd-opened');\n    $modal.removeClass('cc-customModalOpened');\n    $(QUICKADD_BUTTON).off('click');\n    $modal.off('click', QUICKADD_CLOSE).off('click', QUICKADD_SIZEBUTTON);\n    $modal.find(QUICKADD_PROCEEDBUTTON).off('click');\n}\n\nfunction closeDrawerWithGesture(modal) {\n    var modalContainer = modal;\n\n    const scrollElement = modalContainer.find(QUICKADD_MODAL_OVERFLOW)[0];\n\n    var hammertime = new Hammer(modalContainer[0]);\n    hammertime.get('swipe').set({direction: Hammer.DIRECTION_VERTICAL});\n    hammertime.get('pan').set({direction: Hammer.DIRECTION_VERTICAL});\n\n    const isScrollable = scrollElement.scrollHeight > scrollElement.clientHeight;\n\n    var startY,\n        scrollTop = 0;\n\n    if (isScrollable) {\n        let actionStart = false;\n        hammertime.on('panstart', function (e) {\n            actionStart = true;\n            startY = e.deltaY - scrollElement.offsetTop;\n            scrollTop = scrollElement.scrollTop;\n        });\n        hammertime.on('panend', function (e) {\n            actionStart = false;\n        });\n        hammertime.on('panmove', function (e) {\n            if (!actionStart) {\n                return;\n            }\n            const y = e.deltaY - scrollElement.offsetTop;\n            const scroll = y - startY;\n            scrollElement.scrollTop = scrollTop - scroll;\n        });\n    }\n\n    hammertime.on('swipedown', function (e) {\n        if (isScrollable && (scrollElement.scrollTop !== 0 || scrollTop > 30)) {\n            return;\n        }\n\n        closeQuickAdd(e, modal);\n        hammertime.off('swipedown panmove panend panstart').destroy();\n    });\n}\n\n/**\n * function for close all the quickadd open with screen device is in large breakpoint\n */\nfunction closeAllQuickAdd() {\n    let allQAopen = $('.' + QUICKADD_MODAL_OPEN);\n    if (allQAopen.length > 0) {\n        allQAopen.each(function () {\n            closeQuickAdd(null, $(this));\n        });\n    }\n}\n\nfunction searchSelectedSize($modal) {\n    var selectSize = $modal.find(QUICKADD_SIZEBUTTON_SELECTED);\n    if (selectSize.length) {\n        $modal.find(QUICKADD_SIZESELECTED_LABEL).empty().html(selectSize.data('name'));\n    }\n}\n\nfunction prepareAddToCart(e) {\n    var sizeButton = $(this);\n    if (sizeButton.hasClass('notifyMe')) {\n        return;\n    }\n    e.data.modal.find(QUICKADD_SIZEBUTTON).removeClass(STYLE_QUICKADD_SIZEBUTTON_SELECTED);\n    sizeButton.addClass(STYLE_QUICKADD_SIZEBUTTON_SELECTED);\n\n    const prepareData = {\n        form: {\n            pid: sizeButton.data('pid'),\n            quantity: 1,\n            GTMItemListName: e.data.modal.data('item_list_name'),\n            GTMItemListId: e.data.modal.data('item_list_id'),\n            GTMIndex: e.data.modal.data('index')\n        },\n        addToCartUrl: sizeButton.data('url'),\n        modal: e.data.modal,\n        $productContainer: sizeButton.closest('.js-prodTile')\n    };\n\n    searchSelectedSize(e.data.modal);\n\n    if (Foundation.MediaQuery.atLeast('large')) {\n        // desktop version\n        makeAddToCart({data: prepareData});\n    } else {\n        // mobile version\n        e.data.modal\n            .find(QUICKADD_PROCEEDBUTTON)\n            .attr('disabled', false)\n            .on('click', prepareData, makeAddToCart);\n    }\n}\n\nfunction makeAddToCart(e) {\n    let $modal = e.data.modal;\n    var dataValue = e.data;\n    genericAjaxCall(dataValue.addToCartUrl, 'POST', dataValue.form).then(function (data) {\n        if (data.error === false) {\n            $('body').trigger('product:didChangeSizeQuickAddToCart', {\n                ...data,\n                form: dataValue.form,\n                $productContainer: dataValue.$productContainer\n            });\n\n            $('body').trigger('product:afterAddToCart', {\n                ...data,\n                form: dataValue.form,\n                $productContainer: dataValue.$productContainer,\n            });\n            handlePostCartAdd(data);\n\n            if ($modal.closest('.js-hpShoppable').length > 0) {\n                if (Foundation.MediaQuery.atLeast('large')) {\n                    closeQuickAddShoppable(e);\n                    return;\n                }\n            }\n\n            closeAllQuickAdd();\n        }\n    });\n}\n\nfunction handlePostCartAdd(response) {\n    $('body').trigger('count:update', response);\n    // show add to cart toast\n    if (response.error) {\n        return;\n    }\n    if ($('.add-to-cart-messages').length === 0) {\n        $('body').append('<div class=\"add-to-cart-messages\"></div>');\n    }\n    if ($('.page[data-action=\"Cart-Show\"]').length > 0) {\n        if (history.scrollRestoration) {\n            history.scrollRestoration = 'manual';\n        }\n        $('html').animate({scrollTop: 0}, 500);\n    }\n}\n\nfunction onResizeFunction() {\n    closeAllQuickAdd();\n    forceUnlockScroll();\n}\n","export default function () {\n    // QuickView\n    $('.js-carousel-select-color-quickview').slick({\n        slidesToShow: 6,\n        slidesToScroll: 2,\n        infinite: false,\n        variableWidth: true,\n        responsive: [\n            {\n                breakpoint: 769,\n                settings: {\n                    slidesToShow: 10,\n                    slidesToScroll: 2\n                }\n            },\n            {\n                breakpoint: 640,\n                settings: {\n                    slidesToShow: 6,\n                    slidesToScroll: 2\n                }\n            }\n        ]\n\n    });\n}\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","// import QuickView from './product/quickView';\n// import ProductBox from './product/productBox';\n// import QuickBuyModal from './product/quickBuyModal';\n\nimport ProductHelpers from './product/base';\nimport initHeroBanner from './search/heroBanner';\nimport initRefineBarComponent from './search/refineBarComponent';\nimport initSlotActivator from './search/slotActivator';\nimport initSpecialRefinement from './search/specialRefinementBar';\n\ndocument.addEventListener('DOMContentLoaded', () => {\n    // processInclude(require('./search/search'));\n    // const p = new ProductBox();\n    // p.run();\n    // const quickView = new QuickView();\n    // quickView.run();\n    // const quickBuyModal = new QuickBuyModal();\n    // quickBuyModal.run();\n    initHeroBanner();\n    initRefineBarComponent();\n    initSlotActivator();\n    initSpecialRefinement();\n    ProductHelpers.run();\n});\n\n$(document).ready(function () {\n    const expandableContainer = $('.ca-expandable');\n    const expandButton = $('.ca-toggle-button-expand');\n    const collapseButton = $('.ca-toggle-button-collapse');\n    const toggleButtonContainer = $('.ca-toggle-button-container');\n    const paddingOffset = parseInt($('.jsExpandPaddingReference').css('padding-bottom')) || 0;\n    const referenceElementHeight = parseInt($('.jsExpandReference').outerHeight()) + paddingOffset;\n    const expandedClass = 'ca-expanded';\n\n    expandableContainer.css('max-height', referenceElementHeight + 'px');\n\n    if (referenceElementHeight && expandableContainer.length > 0 && expandableContainer[0].scrollHeight > referenceElementHeight) {\n        toggleButtonContainer.show();\n    } else {\n        toggleButtonContainer.hide();\n    }\n\n    expandButton.on('click', function () {\n        const fullHeight = expandableContainer[0].scrollHeight;\n        expandableContainer.addClass(expandedClass);\n        expandableContainer.css('max-height', fullHeight + 'px');\n        expandButton.hide();\n        collapseButton.show();\n    });\n\n    collapseButton.on('click', function () {\n        expandableContainer.removeClass(expandedClass);\n        expandableContainer.css('max-height', referenceElementHeight + 'px');\n        collapseButton.hide();\n        expandButton.show();\n    });\n});\n\n$(document).ready(function () {\n    const faqSection = $('div.ca-faq-section');\n\n    if (faqSection && faqSection.length) {\n        const faqData = {\n            '@context': 'https://schema.org',\n            '@type': 'FAQPage',\n            'mainEntity': []\n        };\n\n        faqSection.find('div.accordion').find('div.accordion-item').each(function () {\n            const question = $(this).find('h3.accordion-title').text();\n            let answer = '';\n            $(this).find('div.accordion-content').find('p').each(function () {\n                answer += $(this).text() + ' ';\n            });\n\n            faqData.mainEntity.push({\n                '@type': 'Question',\n                'name': question,\n                'acceptedAnswer': {\n                    '@type': 'Answer',\n                    'text': answer.trim()\n                }\n            });\n        });\n\n        const scriptTag = $('<script>', {\n            type: 'application/ld+json',\n            text: JSON.stringify(faqData)\n        });\n\n        $('head').append(scriptTag);\n    }\n});\n","export default initHeroBanner;\n\n/**\n * javascript class for jQuery selector\n */\nconst CLASSELEM = {\n    breadcrumbs: '.js-plp-breadcrumbs',\n    herobanner_breadcrumbsPlaceholder: '.js-herobanner-breadcrumbPlaceholder',\n};\n\nfunction initHeroBanner() {\n    const $breadcrumbs = $(CLASSELEM.breadcrumbs);\n    if ($breadcrumbs.length > 0) {\n        searchContentSlotHeroBanner($breadcrumbs);\n    }\n}\n\nfunction searchContentSlotHeroBanner($breadcrumbs) {\n    const $bcPlaceholder = $(CLASSELEM.herobanner_breadcrumbsPlaceholder);\n    if ($bcPlaceholder.length > 0) {\n        moveBreadcrumbs($breadcrumbs, $bcPlaceholder);\n    } else {\n        $breadcrumbs.removeClass('d-none');\n    }\n}\n\nfunction moveBreadcrumbs($breadcrumbs, $bcPlaceholder) {\n    $bcPlaceholder.empty().html($breadcrumbs);\n    $breadcrumbs.removeClass('d-none');\n}\n","import {openRefinements} from './refinements';\nimport {\n    ajaxCall_changeExternalRefinements,\n    ajaxCall_clickSortOption,\n    ajaxCall_changeGridView,\n} from './ajaxCall';\n\nexport default initRefineBarComponent;\n\n/**\n * javascript class for jQuery selector\n */\nconst CLASSELEM = {\n    pageOverlay: '.js-plp-pageOverlay',\n    refineBar: '.js-plp-refineBar',\n    refineBar_buttonMenu: '.js-plp-refineBar-buttonMenu',\n    refineBar_externalRefinements: '.js-plp-refineBar-menu-externalRefinements',\n    refineBar_gridToggle: '.js-plp-refineBar-gridToggle',\n    refineBar_menu: '.js-plp-refineBar-menu',\n    refineBar_menuClose: '.js-plp-refineBar-closeMenu',\n    refineBar_sortLink: '.js-plp-refineBar-menu-sortlink',\n    refineBar_toggleRefinements: '.js-plp-refineBar-refinements',\n};\n\n/**\n * style class using in add or remove\n */\nconst STYLECLASS = {\n    pageOverlay_open: 'cc-plp-pageOverlay_open',\n    refineBar_button_open: 'cc-plp-refineBar-button_open',\n    refineBar_menu_animation: 'cc-menuAnimation',\n};\n\nfunction initRefineBarComponent() {\n    const $refineBar = $(CLASSELEM.refineBar);\n\n    //add event\n    $refineBar.on('click', CLASSELEM.refineBar_buttonMenu, openMenu);\n    $refineBar.on('click', CLASSELEM.refineBar_sortLink, clickOnSortOption);\n    $refineBar.on('click', CLASSELEM.refineBar_externalRefinements, changeExternalRefinement);\n    $refineBar.on('click', CLASSELEM.refineBar_gridToggle, changeGridView);\n\n    $(CLASSELEM.refineBar_toggleRefinements).on('click', openRefinements);\n}\n\nfunction openPageOverlay() {\n    $(CLASSELEM.refineBar).append(\"<span class='js-plp-pageOverlay cc-plp-pageOverlay'></span>\");\n    const $overlay = $(CLASSELEM.pageOverlay);\n    $overlay.show().addClass(STYLECLASS.pageOverlay_open);\n}\n\nfunction closePageOverlay() {\n    const $overlay = $(CLASSELEM.pageOverlay);\n    $overlay\n        .removeClass(STYLECLASS.pageOverlay_open)\n        .on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function () {\n            $overlay.hide().remove();\n        });\n}\n\nfunction openMenu() {\n    var $button = $(this);\n    if ($button.hasClass(STYLECLASS.refineBar_button_open)) {\n        return;\n    }\n    openPageOverlay();\n    $button.addClass(STYLECLASS.refineBar_button_open);\n    var $menu = $button.siblings(CLASSELEM.refineBar_menu);\n    if (!$menu.length) {\n        $menu = $button.find(CLASSELEM.refineBar_menu);\n    }\n    $menu.fadeIn(5).addClass(STYLECLASS.refineBar_menu_animation);\n\n    $([CLASSELEM.pageOverlay, CLASSELEM.refineBar_menuClose].join(',')).on(\n        'click',\n        {button: $button, menu: $menu},\n        closeMenu\n    );\n}\n\nfunction closeMenu(e) {\n    closePageOverlay();\n    e.data.menu\n        .removeClass(STYLECLASS.refineBar_menu_animation)\n        .on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function () {\n            e.data.button.removeClass(STYLECLASS.refineBar_button_open);\n            e.data.menu.off('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd');\n            $(CLASSELEM.refineBar_menuClose).off('click');\n        });\n}\n\nfunction clickOnSortOption(e) {\n    e.preventDefault();\n    e.stopPropagation();\n\n    let url = $(this).attr('href');\n    var $button = $(this).closest(CLASSELEM.refineBar_menu).siblings(CLASSELEM.refineBar_buttonMenu);\n    var $menu = $(this).closest(CLASSELEM.refineBar_menu);\n\n    ajaxCall_clickSortOption(url).then(function () {\n        closeMenu({data: {button: $button, menu: $menu}});\n    });\n}\n\nfunction changeExternalRefinement() {\n    var url = new URL(window.location.href);\n    var searchParams = new URLSearchParams(url.search);\n    var idExtRef = $(this).data('id');\n    var prefNumTotal = 0;\n    var prefNumExternalRef = 0;\n\n    for (let [key, value] of searchParams.entries()) {\n        if (key.includes('prefn')) {\n            prefNumTotal = parseInt(key.match(/\\d+/)[0]);\n            if (value === idExtRef) {\n                prefNumExternalRef = prefNumTotal;\n            }\n        }\n    }\n\n    var allElements = $(\n        '.js-plp-refineBar-menu-body_externalRefinement .js-plp-refineBar-menu-externalInput'\n    );\n\n    var searchString = [];\n\n    allElements.each(function () {\n        let elem = $(this);\n        if (elem.is(':checked')) {\n            searchString.push(elem.data('valueid'));\n        }\n    });\n\n    if (prefNumExternalRef === 0) {\n        //NOT EXIST CASE\n        if (searchString.length === 0) {\n            return;\n        } else {\n            searchParams.append('prefn' + (prefNumTotal + 1), idExtRef);\n            searchParams.append('prefv' + (prefNumTotal + 1), searchString.join('|'));\n        }\n    } else {\n        //EXIST CASE\n        if (searchString.length === 0) {\n            for (let i = prefNumExternalRef; i < prefNumTotal + 1; i++) {\n                if (i === prefNumTotal) {\n                    searchParams.delete('prefn' + i);\n                    searchParams.delete('prefv' + i);\n                } else {\n                    searchParams.set('prefn' + i, searchParams.get('prefn' + (i + 1)));\n                    searchParams.set('prefv' + i, searchParams.get('prefv' + (i + 1)));\n                }\n            }\n        } else {\n            searchParams.set('prefn' + prefNumExternalRef, idExtRef);\n            searchParams.set('prefv' + prefNumExternalRef, searchString.join('|'));\n        }\n    }\n\n    url.search = searchParams.toString();\n    var $button = $(this).closest(CLASSELEM.refineBar_menu).siblings(CLASSELEM.refineBar_buttonMenu);\n    if (!$button.length) {\n        $button = $(this).closest(CLASSELEM.refineBar_buttonMenu);\n    }\n    var $menu = $(this).closest(CLASSELEM.refineBar_menu);\n    ajaxCall_changeExternalRefinements(url.toString()).then(function () {\n        closeMenu({data: {button: $button, menu: $menu}});\n    });\n}\n\nfunction changeGridView() {\n    let url = $(this).data('url');\n    ajaxCall_changeGridView(url);\n}\n\nwindow.addEventListener('scroll', function (e) {\n    const productsGrid = $('.js-plp-pagination');\n    const $refineBar = $(CLASSELEM.refineBar);\n\n    if (productsGrid.length > 0) {\n        var productsGridFromTop = productsGrid.offset().top;\n    }\n\n    var refineBarFromTop = window.scrollY;\n\n    if (productsGridFromTop < refineBarFromTop) {\n        $refineBar.hide();\n    } else {\n        $refineBar.show();\n    }\n});\n\nif($('.js-plp-refineBar').length) {\n    $('.js-mainHeader-container').addClass('has-refinements');\n    let lastScrollTopFilters = 0;\n    $('.cc-mainHeader-container').css('position', 'sticky');\n    $(window).on('scroll', function() {\n        let st = $(this).scrollTop();\n        const isFilterOpen = $('.js-plp-refineBar-refinements').hasClass('cc-plp-refineBar-button_open');\n        if(!isFilterOpen) {\n            if(document.documentElement.scrollTop || document.body.scrollTop > 0) {\n                const sovraHeight = $('.cc-mainHeader-sovraheader').height();\n                $('.js-mainHeader').css('top', `-${sovraHeight}px`)\n                if(st < lastScrollTopFilters) {\n                    $('.js-mainHeader').removeClass('z-bottom').addClass('z-top');\n                    $('.js-plp-refineBar').removeClass('z-top').addClass('z-bottom');\n                }\n                else {\n                    $('.js-mainHeader').removeClass('z-top').addClass('z-bottom');\n                    $('.js-plp-refineBar').removeClass('z-bottom').addClass('z-top');\n                }\n            } else {\n                $('.js-mainHeader').css('top', '0');\n            }\n        }\n        lastScrollTopFilters = st;\n    });\n}\n\n","export {initProdTileCarousel, unslickProdTileCarousel};\n\nconst IMAGE_CONTAINER_CAROUSEL_CLASS = '.js-prodTile-imageContainer-carousel';\n\nfunction initProdTileCarousel (containerClass) {\n    const $tileCarousel = containerClass\n        ? $(containerClass + ' ' + IMAGE_CONTAINER_CAROUSEL_CLASS)\n        : $(IMAGE_CONTAINER_CAROUSEL_CLASS);\n\n    if ($tileCarousel) {\n        loadLazyVideo();\n        $tileCarousel.on('init', function () {\n            $(this).find('.slick-arrow').addClass('js-prevent-link');\n            $(this).find('.slick-dots').addClass('js-prevent-link');\n\n            var previousLabel = $('.js-fetch-slick-previous-label').data('label');\n            $(this).find('.slick-arrow.slick-prev').attr('aria-label', previousLabel);\n            var nextLabel = $('.js-fetch-slick-next-label').data('label');\n            $(this).find('.slick-arrow.slick-next').attr('aria-label', nextLabel);\n        });\n        $tileCarousel.slick({\n            lazyLoad: 'ondemand',\n            draggable: true,\n            dots: true,\n            accessibility: false,\n            arrows: true,\n            responsive: [\n                {\n                    breakpoint: 1023,\n                    settings: {\n                        arrows: false,\n                    },\n                },\n            ],\n        });\n    }\n}\n\nfunction unslickProdTileCarousel (containerClass) {\n    const $tileCarousel = containerClass\n        ? $(containerClass + ' ' + IMAGE_CONTAINER_CAROUSEL_CLASS + '.slick-initialized')\n        : $(IMAGE_CONTAINER_CAROUSEL_CLASS + '.slick-initialized');\n\n    if ($tileCarousel) {\n        $tileCarousel.slick('unslick');\n    }\n}\n\nfunction loadLazyVideo () {\n    const lazyloadclass = 'js-customLazyload';\n    let lazyVideos = [].slice.call(document.querySelectorAll('.' + lazyloadclass));\n\n    let lazyVideoObserver = new IntersectionObserver(function (entries) {\n        entries.forEach(function (video) {\n            if (video.isIntersecting) {\n                for (let source in video.target.children) {\n                    let videoSource = video.target.children[source];\n                    if (\n                        typeof videoSource.tagName === 'string' &&\n                        videoSource.tagName === 'SOURCE'\n                    ) {\n                        videoSource.src = videoSource.dataset.src;\n                    }\n                }\n\n                video.target.load();\n                video.target.classList.remove(lazyloadclass);\n                lazyVideoObserver.unobserve(video.target);\n            }\n        });\n    });\n\n    lazyVideos.forEach(function (lazyVideo) {\n        lazyVideoObserver.observe(lazyVideo);\n    });\n}\n","import {ajaxCall_changeRefinements} from './ajaxCall';\nimport {\n    initProdTileCarousel,\n    unslickProdTileCarousel,\n} from '../productTileComponent/productTileCarousel';\nimport {closeAllQuickAdd} from '../productTileComponent/productTile';\n\nexport {openRefinements};\n\n/**\n * $button = $('.js-plp-refineBar-refinements')\n */\n// SELECTOR ELEMENT CLASS USED LIST\nconst MENUREFINEMENT = '.js-plp-refinements';\nconst PRODUCTGRID = '.js-plp-productGrid';\nconst PAGINATION = '.js-plp-pagination';\n\n// VARIANT CLASS ADDED - REMOVED\nconst BUTTON_OPEN = 'cc-plp-refineBar-button_open';\nconst MENU_OPEN = 'cc-plp-refinements_open';\nconst PRODUCTGRID_OPEN = 'cc-plp-productGrid_open';\n\nfunction openRefinements() {\n    const $button = $(this);\n    $button.off('click').addClass(BUTTON_OPEN);\n    const $menu = $(MENUREFINEMENT);\n\n    addEventRefinements($button, $menu);\n\n    if (Foundation.MediaQuery.atLeast('large')) {\n        unslickProdTileCarousel(PRODUCTGRID);\n\n        if (Foundation.MediaQuery.is('large only')) {\n            closeAllQuickAdd();\n        }\n\n        movePageOnFilterOpen().then(function () {\n            $menu.addClass(MENU_OPEN);\n            const $productGrid = $(PRODUCTGRID);\n            $productGrid\n                .addClass(PRODUCTGRID_OPEN)\n                .on(\n                    'transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd',\n                    function () {\n                        initProdTileCarousel(PRODUCTGRID);\n                        autoCloseRefinements($button, $menu);\n                        $productGrid.off(\n                            'transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'\n                        );\n                    }\n                );\n        });\n    } else {\n        $menu.addClass(MENU_OPEN);\n    }\n}\n\nfunction closeRefinements(e) {\n    if (!e.data.menu.hasClass(MENU_OPEN)) {\n        return;\n    }\n\n    e.data.menu.removeClass(MENU_OPEN);\n    removeEventRefinements(e.data.button, e.data.menu);\n\n    if (Foundation.MediaQuery.atLeast('large')) {\n        unslickProdTileCarousel(PRODUCTGRID);\n        const $productGrid = $(PRODUCTGRID);\n        $productGrid\n            .removeClass(PRODUCTGRID_OPEN)\n            .on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function () {\n                $productGrid.off(\n                    'transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'\n                );\n                initProdTileCarousel(PRODUCTGRID);\n            });\n    }\n}\n\nfunction movePageOnFilterOpen() {\n    return new Promise((resolve) => {\n        var targetOffset = $(PRODUCTGRID).offset().top - 53;\n        var distance = Math.abs($(window).scrollTop() - targetOffset);\n        var speed = 1000;\n        var duration = Math.min((distance / speed) * 1000, 600);\n        $('html, body').animate(\n            {\n                scrollTop: targetOffset,\n            },\n            duration,\n            resolve\n        );\n    });\n}\n\n/**\n * function to autoclose refinement menu, when touch pagination\n */\nfunction autoCloseRefinements($button, $menu) {\n    const refinementMenu = document.querySelector(MENUREFINEMENT);\n    const pagination = document.querySelector(PAGINATION);\n\n    if (refinementMenu) {\n        const options = {\n            threshold: 0.01,\n        };\n\n        const callback = ([entries]) => {\n            if (entries.isIntersecting) {\n                observer.unobserve(pagination);\n                closeRefinements({data: {button: $button, menu: $menu}});\n            }\n        };\n\n        const observer = new IntersectionObserver(callback, options);\n        observer.observe(pagination);\n    }\n}\n\nfunction addEventRefinements($button, $menu) {\n    // CLOSE REFINEMENT\n    $button.on('click', {button: $button, menu: $menu}, closeRefinements);\n\n    // EVENT APPEND TO MENU\n    // close refinement - view result\n    $menu.on('click', '.js-plp-closeRefinements', {button: $button, menu: $menu}, closeRefinements);\n\n    // reset refinement\n    $menu.on('click', '.js-plp-resetRefinements', changeRefinements);\n\n    // change event\n    $menu.on('click', '.js-changeRefinementValue_button', changeRefinements);\n    $menu.on('change', '.js-changeRefinementValue_input', changeRefinements);\n}\n\nfunction removeEventRefinements($button, $menu) {\n    $button.removeClass(BUTTON_OPEN).off('click').on('click', openRefinements);\n\n    // Remove all event append to menu .js-plp-refinements\n    $menu.off('click change');\n}\n\nfunction changeRefinements() {\n    let url = $(this).data('url');\n    ajaxCall_changeRefinements(url);\n}\n","import {initSlotCarousel} from '../productTileComponent/productTile';\n\nexport default initSlotActivator;\n\nfunction initSlotActivator() {\n    const slotActivatorClass = '.js-plp-contentSlotActivator';\n\n    if ($(slotActivatorClass).length > 0) {\n        initSlotCarousel(slotActivatorClass);\n    }\n}\n","export default initSpecialRefinement;\n\n/**\n * javascript class for jQuery selector\n */\nconst JS_CLASS = {\n    gradient: '.js-plp-specialRef-gradient',\n    specialRef: '.js-plp-specialRef',\n    specialRef_container: '.js-plp-specialRef-container',\n    specialRef_chips: '.js-plp-specialRef-chips',\n};\n\nconst CSS_CLASS = {\n    specialRef_chips: 'js-plp-specialRef-chips',\n};\n\nfunction initSpecialRefinement() {\n    const $specialRef = $(JS_CLASS.specialRef);\n    let resizeTimeout;\n\n    if ($specialRef.length > 0) {\n        checkSizeContainer();\n        $(window).on('resize', function () {\n            clearTimeout(resizeTimeout);\n            resizeTimeout = setTimeout(() => {\n                $specialRef.off();\n                checkSizeContainer();\n            }, 300);\n        });\n    }\n}\n\nfunction checkSizeContainer() {\n    const $specialRef_container = $(JS_CLASS.specialRef_container);\n    const specialRef = document.querySelector(JS_CLASS.specialRef);\n    const $specialRef = $(JS_CLASS.specialRef);\n    const $specialRefGradient = $(JS_CLASS.gradient);\n\n    specialRef.scrollLeft = 0;\n\n    if ($specialRef_container.prop('scrollWidth') > $specialRef_container.width() + 1) {\n        $specialRefGradient.removeClass('hide');\n        $specialRefGradient.css({\n            width: '',\n            right: 0,\n        });\n        let actionStart = false;\n        let startX, scrollLeft;\n        const maxScrollLeft = specialRef.scrollWidth - specialRef.clientWidth;\n        const gradientInitialWidth = $specialRefGradient.width();\n\n        $specialRefGradient.css('width', Math.min(gradientInitialWidth, maxScrollLeft * 2));\n\n        const activeButton = $('.js-plp-specialRef-chips[data-active=\"true\"]');\n        if (activeButton.length > 0) {\n            const distanceFromLeft = activeButton[0].offsetLeft;\n            const activeButtonWidth = activeButton[0].clientWidth / 2;\n            const containerWidth = specialRef.clientWidth / 2;\n            specialRef.scrollLeft = distanceFromLeft - containerWidth + activeButtonWidth;\n            $specialRefGradient.css('right', -(distanceFromLeft - containerWidth + activeButtonWidth));\n        }\n\n        function startDragging(e) {\n            e.preventDefault();\n            e.stopPropagation();\n\n            if (e.type === 'mousedown' && e.which !== 1) {\n                //check only left button\n                return;\n            }\n\n            actionStart = true;\n            let moveX = e.type === 'touchstart' ? e.touches[0].pageX : e.pageX;\n            startX = moveX - specialRef.offsetLeft;\n            scrollLeft = specialRef.scrollLeft;\n        }\n        function stopDragging(e) {\n            e.preventDefault();\n            e.stopPropagation();\n\n            if (!actionStart) {\n                return;\n            }\n            let moveX =\n                e.type === 'touchend' || e.type === 'touchcancel'\n                    ? e.changedTouches[0].pageX\n                    : e.pageX;\n\n            const x = moveX - specialRef.offsetLeft;\n            const scroll = x - startX;\n\n            let [$chips, url] = findChips(e.target);\n\n            if (Math.abs(scroll) < 12 && url) {\n                changeLocation($chips, url);\n            }\n            actionStart = false;\n        }\n        function dragging(e) {\n            e.preventDefault();\n            e.stopPropagation();\n\n            if (!actionStart) {\n                return;\n            }\n            let moveX = e.type === 'touchmove' ? e.touches[0].pageX : e.pageX;\n            const x = moveX - specialRef.offsetLeft;\n            const scroll = x - startX;\n            specialRef.scrollLeft = scrollLeft - scroll;\n\n            let calculateScroll = (maxScrollLeft - specialRef.scrollLeft) * 2;\n            $specialRefGradient.css(\n                'width',\n                calculateScroll < gradientInitialWidth ? calculateScroll : gradientInitialWidth\n            );\n            $specialRefGradient.css('right', -specialRef.scrollLeft);\n        }\n\n        $specialRef.on('mousemove', dragging);\n        $specialRef.on('mousedown', startDragging);\n        $specialRef.on('mouseup', stopDragging);\n        $specialRef.on('mouseleave', stopDragging);\n        $specialRef.on('touchmove', dragging);\n        $specialRef.on('touchstart', startDragging);\n        $specialRef.on('touchend', stopDragging);\n        $specialRef.on('touchcancel', stopDragging);\n    } else {\n        specialRef.scrollLeft = 0;\n        $specialRefGradient.addClass('hide');\n        $specialRef.on('click', JS_CLASS.specialRef_chips, clickChips);\n    }\n}\n\nfunction findChips(target) {\n    let $target = $(target);\n    let $chips = $target.hasClass(CSS_CLASS.specialRef_chips)\n        ? $target\n        : $target.closest(JS_CLASS.specialRef_chips);\n\n    if ($chips.attr('href')) {\n        window.location.replace($chips.attr('href'));\n    } else if ($chips.length === 0 || !$chips.data('url')) {\n        return [null, false];\n    } else {\n        return [$chips, $chips.data('url')];\n    }\n}\n\nfunction clickChips(e) {\n    let [$chips, url] = findChips(e.target);\n    if (url) {\n        changeLocation($chips, url);\n    }\n}\n\nfunction changeLocation($chips, url) {\n    var href = new URL(window.location.href);\n    href.searchParams.set('start', 0);\n    var searchParams = new URLSearchParams(href.search);\n\n    if ($chips.data('active') || $chips.data('isCategory')) {\n        window.location.href = url;\n    } else {\n        let oldPrefNumber = checkExistPrefProductType(searchParams);\n\n        if (oldPrefNumber === 0) {\n            window.location.href = url;\n        } else {\n            let prefValueSelect = $chips.data('id');\n            searchParams.set('prefv' + oldPrefNumber, prefValueSelect);\n            href.search = searchParams.toString();\n            window.location.href = href.toString();\n        }\n    }\n}\n\nfunction checkExistPrefProductType(searchParams) {\n    let prefNumber = 0;\n    for (let [key, value] of searchParams.entries()) {\n        if (value === 'productType') {\n            prefNumber = parseInt(key.match(/\\d+/)[0]);\n            break;\n        }\n    }\n    return prefNumber;\n}\n","// import tingle from 'tingle.js';\n// import ProductHelpers from './base';\nimport { newModal } from '../components/modal';\nimport productSlider from '../components/productSlider';\n// let wishlist = require('./wishlistHeart');\n\n/**\n * replaces the content in the modal window on for the selected product variation.\n * @param {string} productUrl - url to be used for going to the product details page\n * @param {string} selectedValueUrl - url to be used to retrieve a new product model\n */\nconst fillModalElement = (productUrl, selectedValueUrl, modal) => {\n    $.ajax({\n        url: selectedValueUrl,\n        method: 'GET',\n        dataType: 'json',\n        success: html => {\n            modal.setContent(html.renderedTemplate);\n            $('.product-quickview .carousel-inner').slick({\n                arrows: true,\n                dots: false\n            });\n            productSlider();\n            // wishlist.highlightIconsForAllItemsInWishlist();\n            modal.open();\n\n            localStorage.setItem('prevlisttype', localStorage.getItem('listtype'));\n            localStorage.setItem('listtype', 'landing');\n            localStorage.setItem('prevlisttypeforcart', localStorage.getItem('listtypeforcart'));\n            localStorage.setItem('listtypeforcart', 'landing');\n            $('body').trigger('product:productLanding');\n\n            if (document.getElementById('TU')) {\n                document.getElementById('TU').click();\n            }\n            $(modal.modalBox)\n                .find('.close-custom')\n                .on('click', function (e) {\n                    modal.close();\n                    modal.destroy();\n                });\n\n            const destroyModal = () => {\n                try {\n                    modal.close();\n                    modal.destroy();\n                } catch (e) {};\n                // remove the event listener to manage cases where the modal\n                // is opened two or more times, (removes console error)\n                $(document).off('product:afterAddToCart', destroyModal);\n            };\n\n            $(document).on('product:afterAddToCart', destroyModal);\n        },\n        error: err => {\n            console.log('Error:', err);\n        }\n    });\n};\n\nconst addToCartFromListing = (pid, promoId, $productContainer) => {\n    $.spinner().start();\n    var form = {\n        pid: pid,\n        quantity: 1,\n        options: [],\n        promoId: promoId\n    };\n    var url = $('#tileAddToCartUrl').data('url');\n    $.ajax({\n        url: url,\n        type: 'post',\n        dataType: 'json',\n        data: form,\n        success: function (response) {\n            if (response) {\n                $('.js-mainHeader-minicart').trigger('count:update', response);\n                localStorage.setItem('lastClickedPosition', '');\n                localStorage.setItem('listtype', 'listing');\n                // $(\"body, html\").animate({ scrollTop: 0 }, 500, 'swing');\n                $('body').trigger('product:afterAddToCart', {\n                    ...response,\n                    form,\n                    $productContainer\n                });\n                $('body').trigger('product:afterQuickBuyListing', response);\n            } else {\n                console.error('Ajax: Empty Response');\n            }\n            $.spinner().stop();\n        },\n        error: function (err) {\n            console.error('ErrorCase: ' + err.message);\n            $.spinner().stop();\n        }\n    });\n};\n\nclass QuickView {\n    run () {\n        this.showQuickview();\n        this.observeQuickBuy();\n    }\n\n    showQuickview () {\n        $('body').on('click', '.quickview', function (e) {\n            e.stopPropagation();\n            e.preventDefault();\n            const selectedValueUrl = $(this).attr('href');\n            const productUrl = selectedValueUrl.replace('Product-ShowQuickView', 'Product-Show');\n            const modal = newModal(false, ['quickview-modal']);\n            fillModalElement(productUrl, selectedValueUrl, modal);\n\n            // trigger for analytics product detail event\n            const target = $(this).closest('.product');\n            if (target.length > 0) {\n                $('body').trigger('product:analyticsProductDetails', target);\n            }\n        });\n    }\n\n    observeQuickBuy () {\n        $('body').on('click', '.js-quick-buy-sizes-item-select', function (e) {\n            e.preventDefault();\n            if ($(this).hasClass('disable') || !$(this).data('variant')) {\n                return false;\n            }\n            var url = $(this).data('variant');\n\n            var pid = $(e.currentTarget).data('pid');\n            $(`.js-quick-buy-sizes-item[data-pid=\"${pid}\"]`).attr('variant', url);\n        });\n        $('body').on('click', '.js-quick-buy-sizes-item', function (e) {\n            e.preventDefault();\n\n            var url = $(this).attr('variant');\n            $.spinner().start();\n            $.ajax({\n                url: url,\n                type: 'GET',\n                dataType: 'json',\n                success: function (response) {\n                    $.spinner().stop();\n                    const $productContainer = $(e.target);\n                    if (response.product.available && !response.product.comingSoon) {\n                        addToCartFromListing(response.product.id, false, $productContainer);\n                    } else {\n                        $('body').trigger('product:afterAddToCartFailed', {\n                            ...response,\n                            $productContainer\n                        });\n                    }\n                },\n                error: function (err) {\n                    console.error('ErrorCase: ' + err.message);\n                    $.spinner().stop();\n                }\n            });\n        });\n    }\n}\n// const quickView = new QuickView();\nexport default QuickView;\nexport { addToCartFromListing };\n","/**\n * Remove all validation. Should be called every time before revalidating form\n * @param {element} form - Form to be cleared\n * @returns {void}\n */\nconst clearFormErrors = (form) => {\n    $(form).find('.form-control.is-invalid').removeClass('is-invalid');\n    $(form).find('.login-form-error').empty();\n    $(form).find('.login-form-error').removeClass('login-form-error-block');\n    $(form)\n        .find('.login-form-error-generic')\n        .removeClass('login-form-error-block')\n        .addClass('hidden');\n};\n\n// If ja-JP language set, swap name and last name input form\nconst swapFirstLastName = () => {\n    if ($('meta[http-equiv=content-language]').attr('content') != 'ja-JP') {\n        return;\n    }\n\n    var firstNameIdList = [\n        'shippingFirstName', // 'Checkout' page\n        'nameformemail', // 'Send us an e-mail' page\n        'registration-form-fname', // 'Register' page\n        'billingFirstName', // 'Edit Billing' page\n        'firstName', // 'Add Address' page\n        'name-frm', // 'Fiscal code calc' modal\n    ];\n\n    var lastNameIdList = [\n        'shippingLastName',\n        'secondnameformemail',\n        'registration-form-lname',\n        'billingLastName',\n        'lastName',\n        'surname-frm',\n    ];\n\n    for (var i = 0; i < firstNameIdList.length; i++) {\n        var firstNameId = firstNameIdList[i];\n        var lastNameId = lastNameIdList[i];\n\n        // Skip to next loop if one input doesn't exist\n        if (!$('#' + firstNameId).length || !$('#' + lastNameId).length) {\n            continue;\n        }\n\n        // Check two inputs are next to each other\n        if (\n            $('#' + firstNameId)\n                .parents('.cell')\n                .next('.cell')\n                .find('#' + lastNameId)\n                .length\n        ) {\n            $('#' + lastNameId)\n                .closest('.cell')\n                .after($('#' + firstNameId).closest('.cell'));\n\n            // Adjust padding on 'Register' page\n            if (i == 2) {\n                $('#' + firstNameId)\n                    .parents('.register-form-final-padding-right')\n                    .removeClass('register-form-final-padding-right')\n                    .addClass('register-form-final-padding-left');\n                $('#' + lastNameId)\n                    .parents('.register-form-final-padding-left')\n                    .removeClass('register-form-final-padding-left')\n                    .addClass('register-form-final-padding-right');\n            }\n        }\n    }\n};\n\nexport const addInputClearIcon = (inputItem) => {\n    var $inputFieldContainer = $(inputItem).closest(\n        '.form-fields-item__label:not(.form-fields-item__label--select)'\n    );\n    var clearIconTopPos =\n        $(inputItem).outerHeight() / 2 +\n        ($('.form-fields-item__input-label', $inputFieldContainer).length > 0\n            ? $('.form-fields-item__input-label', $inputFieldContainer).outerHeight(true)\n            : 0);\n\n    if ($inputFieldContainer.find('.form-fields-item__clearIcon').length === 0) {\n        $inputFieldContainer.append('<span class=\"form-fields-item__clearIcon\"></span>');\n    }\n    $('.form-fields-item__clearIcon', $inputFieldContainer).css('top', clearIconTopPos);\n\n    if (inputItem.value !== '') {\n        $(inputItem).addClass('cc-isPrefilled');\n    }\n\n    $(inputItem)\n        .on('focus', function () {\n            $inputFieldContainer.addClass('focused');\n            $(this).removeClass('cc-isPrefilled');\n        })\n        .on('blur', function () {\n            $inputFieldContainer.removeClass('focused');\n        });\n};\nclass FormHelpers {\n    init(formElement, payload) {\n        // clear form validation first\n        clearFormErrors(formElement);\n        $('.alert', formElement).remove();\n\n        // Chosen select\n        if (Foundation.MediaQuery.atLeast('medium')) {\n            const selects = $('select.chosen, select.custom-select');\n            selects.chosen({ disable_search: true });\n            selects.each(function () {\n                const ariaLabel = $(this).attr('aria-label');\n                \n                $(this).next('.chosen-container')\n                    .find('.chosen-search-input')\n                    .attr('aria-label', ariaLabel);\n            });\n        }\n\n        if (typeof payload === 'object' && payload.fields) {\n            Object.keys(payload.fields).forEach(function (key) {\n                if (payload.fields[key]) {\n                    var feedbackElement = $(formElement)\n                        .find('[name=\"' + key + '\"]')\n                        .parent()\n                        .children('.invalid-feedback');\n\n                    if (feedbackElement.length > 0) {\n                        if (Array.isArray(payload[key])) {\n                            feedbackElement.html(payload.fields[key].join('<br/>'));\n                        } else {\n                            feedbackElement.html(payload.fields[key]);\n                        }\n                        feedbackElement.siblings('.form-control').addClass('is-invalid');\n                        feedbackElement.show();\n                    }\n                }\n            });\n        }\n        if (payload && payload.error) {\n            $(formElement).find('.login-form-error').html(payload.error.join('<br/>'));\n            $(formElement).find('.login-form-error').addClass('login-form-error-block');\n        }\n\n        $('input[type=text], input[type=email], input[type=number]').each(function (index, inputItem) {\n            if ($(inputItem).attr('name') !== 'q') {\n                addInputClearIcon(inputItem);\n            }\n        });\n\n        $('.form-fields-item__clearIcon').on('click touchstart', function (e) {\n            $(e.currentTarget).siblings('.form-fields-item__input-field').val('');\n        });\n\n        swapFirstLastName();\n    }\n\n    /**\n     * Display error messages and highlight form fields with errors.\n     * @param {string} parentSelector - the form which contains the fields\n     * @param {Object} fieldErrors - the fields with errors\n     */\n    loadFormErrors(parentSelector, fieldErrors) {\n        // eslint-disable-line\n        // Display error messages and highlight form fields with errors.\n        $.each(fieldErrors, (attr) => {\n            $('*[name=' + attr + ']', parentSelector)\n                .addClass('is-invalid')\n                .siblings('.invalid-feedback')\n                .html(fieldErrors[attr])\n                .show();\n        });\n        if (fieldErrors.length) {\n            $(`*[name=${fieldErrors[0]}]`).trigger('focus');\n        }\n    }\n\n    /**\n     * Clear the form errors.\n     * @param {string} parentSelector - the parent form selector.\n     */\n    clearPreviousErrors(parentSelector) {\n        $(parentSelector).find('.form-control.is-invalid').removeClass('is-invalid');\n        $('.error-message').hide();\n    }\n\n    handleAmexNumber(cardFieldSelector, cardTypeSelector) {\n        var cleave = new Cleave(cardFieldSelector, {\n            creditCard: true,\n            onCreditCardTypeChanged: (type) => {\n                const creditCardTypes = {\n                    amex: 'Amex',\n                };\n\n                const cardType =\n                    creditCardTypes[\n                        Object.keys(creditCardTypes).indexOf(type) > -1 ? type : 'unknown'\n                    ];\n                $(cardTypeSelector).val(cardType);\n                $('.card-number-wrapper').attr('data-type', type);\n                if (type === 'visa' || type === 'mastercard' || type === 'discover') {\n                    $('#securityCode').attr('maxlength', 3);\n                } else {\n                    $('#securityCode').attr('maxlength', 4);\n                }\n            },\n        });\n\n        $(cardFieldSelector).data('cleave', cleave);\n    }\n    handleCreditCardNumber(cardFieldSelector, cardTypeSelector) {\n        var cleave = new Cleave(cardFieldSelector, {\n            creditCard: true,\n            onCreditCardTypeChanged: (type) => {\n                const creditCardTypes = {\n                    visa: 'Visa',\n                    mastercard: 'Master Card',\n                    amex: 'Amex',\n                    discover: 'Discover',\n                    jcb: 'jcb',\n                    diners: 'diners',\n                    unknown: 'Unknown',\n                };\n\n                const cardType =\n                    creditCardTypes[\n                        Object.keys(creditCardTypes).indexOf(type) > -1 ? type : 'unknown'\n                    ];\n                $(cardTypeSelector).val(cardType);\n                $('.card-number-wrapper').attr('data-type', type);\n                if (type === 'visa' || type === 'mastercard' || type === 'discover') {\n                    $('#securityCode').attr('maxlength', 3);\n                } else {\n                    $('#securityCode').attr('maxlength', 4);\n                }\n            },\n        });\n\n        $(cardFieldSelector).data('cleave', cleave);\n    }\n\n    serializeData(form, wasAmexSelected) {\n        const serializedArray = form.serializeArray();\n\n        serializedArray.forEach((item) => {\n            if (item.name.indexOf('cardNumber') > -1) {\n                if (wasAmexSelected === true) {\n                    item.value = $('#cardNumberAmex').data('cleave').getRawValue(); // eslint-disable-line\n                } else {\n                    item.value = $('#cardNumber').data('cleave').getRawValue(); // eslint-disable-line\n                }\n            }\n        });\n\n        return $.param(serializedArray);\n    }\n}\n\nconst formHelpers = new FormHelpers();\nexport default formHelpers;\n","'use strict';\n\nimport { newModalFromString } from '../components/modal';\nimport FormHelpers, { addInputClearIcon } from '../util/form';\n\n/**\n * Checks if the email value entered is correct format\n * @param {string} email - email string to check if valid\n * @returns {boolean} Whether email is valid\n */\nfunction validateEmail (email) {\n    var regex = /^[\\w.%+-]+@[\\w.-]+\\.[\\w]{2,6}$/;\n    return regex.test(email);\n}\n\nclass NotifyHelper {\n    notifyMeModal () {\n        $('body').on('click', '.js-intProductDetail-size-item', (e) => {\n            if (!$(e.currentTarget).find('.notifyMe').length) {\n                return;\n            }\n            e.preventDefault();\n            let actualDiv = $(e.currentTarget).find('.notifyMe');\n            this.notifyMeAction(actualDiv);\n        });\n\n        $('body').on('click', '.notifyMe', (e) => {\n            e.preventDefault();\n            this.notifyMeAction(e.currentTarget);\n        });\n    }\n\n    notifyMeAction (notifyMeDiv) {\n        var paramUrl = $(notifyMeDiv).siblings().attr('data-variation-url');\n        if (!paramUrl) {\n            paramUrl = $(notifyMeDiv).siblings().attr('data-url');\n        }\n        if ($('.js-notifyMeModal').length > 0 || $(notifyMeDiv).hasClass('js-size-personalizable')) {\n            return;\n        }\n        if ($(notifyMeDiv).hasClass('notifyPopup')) {\n            $('.js-prod-select-size-modal').remove();\n            paramUrl = $(notifyMeDiv).attr('data-url');\n        }\n        $('.js-notifyMeModal-titleNotComingSoon').removeClass('hidden');\n        $('.js-notifyMeModal-subTitleNotComingSoon').removeClass('hidden');\n        $('.js-notifyMeModal-titleComingSoon').addClass('hidden');\n        $('.js-notifyMeModal-subTitleComingSoon').addClass('hidden');\n        let isComingSoon = $(notifyMeDiv).siblings().attr('data-iscomingsoon') == 'true';\n        if (isComingSoon) {\n            $('.js-notifyMeModal-titleNotComingSoon').addClass('hidden');\n            $('.js-notifyMeModal-subTitleNotComingSoon').addClass('hidden');\n            $('.js-notifyMeModal-titleComingSoon').removeClass('hidden');\n            $('.js-notifyMeModal-subTitleComingSoon').removeClass('hidden');\n        }\n        $('.js-notifyMeModal-toHide').removeClass('hidden');\n        $('.js-notifyMeModal-toShow').addClass('hidden');\n        $('.js-notifyMeModal-notifyBtn').parent().removeClass('hidden');\n        $('.continueShopping').addClass('hidden');\n        $('.js-notifyMeModal-emailError').addClass('hidden');\n        $('.js-notifyMeModal-duplicateError').addClass('hidden');\n        const htmlContent = $($(this).data('target')).html();\n        // create and open confirmation modal\n        const modal = newModalFromString(htmlContent, false, [\n            'cc-notifyMeModal',\n            'js-notifyMeModal',\n        ]);\n        if ($('.page').data('action') !== 'Product-Show') {\n            $(modal.modalBox).addClass(\n                'cc-hide-findInStoreButton'\n            );\n        }\n        $(modal.modalBox).addClass(\n            'rightModalAttribute cc-notifyMeModal-modalBox rightModalAttribute_sizeMedium'\n        );\n        let size = $(notifyMeDiv).innerText;\n        $('.sizeNotify').html(size);\n\n        let quickAddFlow = $(notifyMeDiv).hasClass('notifyMeQuickAdd');\n        // Retrieve images from correct SKU (e.g: big cup models)\n        var url = $('#notifyMeModalImageUrl').val();\n        var pid;\n        var selectedColor;\n        var selectedSize;\n\n        if (quickAddFlow) {\n            pid = $(notifyMeDiv).data('pid');\n            selectedColor = $(notifyMeDiv).data('color').split(' - ')[1]\n                ? $(notifyMeDiv).data('color').split(' - ')[1].trim()\n                : '';\n            selectedSize = $(notifyMeDiv).data('value');\n        } else {\n            pid = decodeURIComponent($('.product-detail').attr('data-variant-pid'));\n            selectedColor = $('[data-attr=\"color\"] .swatch-value.selected').data('attr-value');\n            selectedSize =\n                $(notifyMeDiv).closest('label').find('input').data('size-id') + '';\n            selectedSize = selectedSize.replaceAll('/', '\\\\/');\n            $('[data-attr=\"size\"] #' + selectedSize).prop('checked', true);\n        }\n\n        $.ajax({\n            url: url,\n            type: 'GET',\n            data: {\n                pid: pid,\n                color: selectedColor,\n                size: selectedSize,\n            },\n        }).then(function (rsp) {\n            modal.setContent(rsp.renderedTemplate);\n\n            if ($('.quickview-modal').hasClass('tingle-modal--visible') && !$('.quickview-modal').hasClass('js-notifyMe-modal')) {\n                $('.quickview-modal').remove();\n            }\n\n            modal.open();\n            if ($('.js-complete-your-promo-quick-view').length > 0) {\n                $(modal.modalBox).find('#findInStore-modal').addClass('hide');\n            }\n            // Enable addInputClearIcon inside class FormHelpers\n            FormHelpers.init($('.js-notifyMeModal'));\n            // Call addInputClearIcon for the current or every future input in this modal.\n            $('input[type=text],input[type=email]').each(function (index, inputItem) {\n                addInputClearIcon(inputItem);\n            });\n        });\n\n        $(modal.modalBox).on('click', '.js-notifyMeModal-close', (e) => {\n            modal.close();\n            modal.destroy();\n        });\n\n        $(modal.modalBox).on('click', '.continue-shopping-link', (e) => {\n            e.preventDefault();\n            let sku = $('div.notifyMeModal').data('master-pid') || '';\n            let productName = $('.analytics.product').data('name') || '';\n            productName = productName.replace(/\\s\\s+/g, ' ').split(' ').join('_');\n            $('body').trigger('soldout:popupActions', {\n                cta: $(e.currentTarget).data('analytics-action'),\n                productName: productName,\n                size: $('.sizeNotify').text().trim(),\n                sku,\n            });\n            modal.close();\n            modal.destroy();\n        });\n\n        $(modal.modalBox).on('click', '.analytics-notify-popup-actions', (e) => {\n            e.preventDefault();\n            let sku = $('div.notifyMeModal').data('master-pid') || '';\n            let productName = $('.analytics.product').data('name') || '';\n            productName = productName.replace(/\\s\\s+/g, ' ').split(' ').join('_');\n            $('body').trigger('soldout:popupActions', {\n                cta: $(e.currentTarget).data('analytics-action'),\n                productName: productName,\n                size: $('.sizeNotify').text().trim(),\n                sku,\n            });\n        });\n\n        $(modal.modalBox).on('click', '.js-notifyMeModal-notifyBtn', (e) => {\n            let email = $('#emailNotify').val();\n            let isValid = validateEmail(email);\n            let type = !isComingSoon ? 'back-in-stock' : 'coming-soon';\n            let queryString = paramUrl.split('Product-Variation')[1];\n            let productName = $('.analytics.product.hidden').attr('data-item_name') || '';\n            let analyticsSku = $('div.notifyMeModal').data('master-pid') || '';\n            productName = productName.replace(/\\s\\s+/g, ' ').split(' ').join('_');\n\n            if (isValid) {\n                let dataForm = {\n                    sku: $('#skuNotify').val(),\n                    owner: email,\n                    type: type,\n                };\n                let url = $('.notify-url').val();\n                $.spinner().start();\n                $.ajax({\n                    url: url + queryString,\n                    method: 'POST',\n                    dataType: 'json',\n                    data: dataForm,\n                    success: (data) => {\n                        $.spinner().stop();\n                        if (data.success) {\n                            $('.js-notifyMeModal-toHide').addClass('hidden');\n                            if (isComingSoon) {\n                                $('#messageGreen').addClass('hidden');\n                                $('#comingSoonGreen').removeClass('hidden');\n                            }\n                            $('#comingSoonGreen').text(data.messageComingSoon);\n                            $('#messageGreen').text(data.message);\n                            $('.js-notifyMeModal-toShow').removeClass('hidden');\n                            $('.js-notifyMeModal-notifyBtn').addClass('hidden');\n                            $(\n                                '.js-notifyMeModal-titleNotComingSoon,.js-notifyMeModal-titleComingSoon'\n                            ).addClass('hidden');\n                            $(\n                                '.js-notifyMeModal-subTitleNotComingSoon, .js-notifyMeModal-subTitleComingSoon'\n                            ).addClass('hidden');\n                            $('.continueShopping').removeClass('hidden');\n                            $('.js-notifyMeModal-emailError').addClass('hidden');\n                            $('.js-notifyMeModal-duplicateError').addClass('hidden');\n                            if (!Foundation.MediaQuery.atLeast('medium')) {\n                                $('.subtitleHide').addClass('hidden');\n                            }\n                            $('body').trigger('soldout:notify', {\n                                size: $('.sizeNotify').text().trim(),\n                                productName: productName,\n                                sku: analyticsSku,\n                                availability: 'product_notify_me',\n                            });\n                        } else {\n                            if (data.duplicate) {\n                                $('.js-notifyMeModal-duplicateError').removeClass('hidden');\n                            }\n                        }\n                    },\n                    error: () => {\n                        $.spinner().stop();\n                    },\n                });\n            } else {\n                $('.js-notifyMeModal-emailError').removeClass('hidden');\n            }\n        });\n    }\n}\n\nconst notifyHelper = new NotifyHelper();\nexport default notifyHelper;\n","export const startCarouselTileImageFunction = (element) => {\n    var carousel = element ? $(element) : $('.js-tileImageCarousel');\n    carousel.on('init', function (event, slick) {\n        $(this).find('.tile-image').removeClass('hide');\n        $(this).find('.slick-arrow').addClass('js-prevent-link');\n    });\n    carousel.slick({\n        responsive: [\n            {\n                settings: {\n                    draggable: false,\n                    swipe: false,\n                    swipeToSlide: false,\n                    touchMove: false,\n                    accessibility: false,\n                    arrows: false\n                }\n            }\n        ]\n    });\n};\n\nclass ProductBox {\n    run () {\n        this.gotoPDP();\n        this.startCarouselTileImage();\n        this.afterAttributesSelectionEvent();\n    }\n\n    gotoPDP () {\n        $(document).on('click', '.product-tile', function (evt) {\n            if (evt.target.classList.contains('js-prevent-link')) {\n                evt.preventDefault();\n            }\n        });\n    }\n\n    startCarouselTileImage () {\n        startCarouselTileImageFunction();\n\n        $('body').on('click', '.product .js-tileImageCarousel .slick-arrow', function (e) {\n            e.preventDefault();\n            e.stopPropagation();\n        });\n    }\n\n    afterAttributesSelectionEvent () {\n        $(document).on('product:afterAttributeSelect', (evt, additionalData) => {\n            const $container = additionalData.container;\n            var newPriceData = additionalData.data.product.price.html;\n            if (additionalData.data.product.doubleCurrency && additionalData.data.product.doubleCurrency.html) {\n                newPriceData += additionalData.data.product.doubleCurrency.html;\n            }\n            $container.find('.price-container').html(newPriceData);\n        });\n    }\n}\n\n// const productBox = new ProductBox();\nexport default ProductBox;\n","'use strict';\n\nconst checkCarouselLength = (carouselContainer) => {\n    if ($(carouselContainer).length > 0) {\n        $(carouselContainer).each(function () {\n            const carousel = $(this);\n            let carouselWidth = parseInt($(carousel).outerWidth());\n            let carouselItemsNumber = $(carousel).children().length;\n            let carouselItemsWidth = parseInt($(carousel).children().outerWidth());\n            let carouselItemsWidthSum = carouselItemsWidth * carouselItemsNumber;\n            if ((carouselItemsWidthSum + 16) <= carouselWidth) {\n                $(this).closest('.cc-em').find('.cc-em__carouselCustom__arrows').hide();\n                $(this).addClass('cc-em__carouselCustom_center');\n            } else {\n                $(this).closest('.cc-em').find('.cc-em__carouselCustom__arrows').show();\n                $(this).removeClass('cc-em__carouselCustom_center');\n            }\n\n            $(this).scroll(function () {\n                carouselWidth = parseInt($(carousel).outerWidth());\n                carouselItemsNumber = $(carousel).children().length;\n                carouselItemsWidth = parseInt($(carousel).children().outerWidth());\n                carouselItemsWidthSum = carouselItemsWidth * carouselItemsNumber;\n                let carouselScrolled = $(carousel).scrollLeft();\n\n                if (carouselScrolled < 1) {\n                    $(carousel).closest('.cc-em').find('.js-carouselCustom__arrowLeft').addClass('cc-disabled');\n                } else if (carouselScrolled >= (carouselItemsWidthSum - carouselWidth + 16)) {\n                    $(carousel).closest('.cc-em').find('.js-carouselCustom__arrowRight').addClass('cc-disabled');\n                } else {\n                    $(carousel).closest('.cc-em').find('.js-carouselCustom__arrowLeft').removeClass('cc-disabled');\n                    $(carousel).closest('.cc-em').find('.js-carouselCustom__arrowRight').removeClass('cc-disabled');\n                }\n            });\n        });\n    }\n};\n$(document).ready(function () {\n    // Custom Carousel\n    function carouselScroll (el, dir) {\n        const carousel = $(el).closest('.cc-em').find('.cc-em__carouselCustom');\n        const carouselItemsWidth = parseInt($(carousel).children().outerWidth());\n        let carouselScrolled = $(carousel).scrollLeft();\n\n        if (dir === 'right') {\n            $(carousel).scrollLeft(carouselScrolled + carouselItemsWidth);\n        } else {\n            $(carousel).scrollLeft(carouselScrolled - carouselItemsWidth);\n        }\n    }\n\n    $(document).on('click', '.js-carouselCustom__arrowLeft', function () {\n        carouselScroll(this, 'left');\n    });\n\n    $(document).on('click', '.js-carouselCustom__arrowRight', function () {\n        carouselScroll(this, 'right');\n    });\n    $('body').on('common:checkCarouselLength', function (e, data) {\n        checkCarouselLength(data.name);\n    });\n});\n\nexport {\n    checkCarouselLength,\n};\n","import { fabric } from 'fabric';\nimport { generateSvgForOTP } from './personalization/generateSvgForOTP';\nimport {\n    newModalFromString\n} from './components/modal';\nimport sizePanel from './product/sizePanel';\nimport SELECTORS from './personalization/selectors';\nimport CLASSES from './personalization/classes';\n\nlet customizePosition, customizeSide, customizeText, customizeFont, customizePattern, customizeColor, allowedCharactersRegex, canvas, canvasText, canvasRect, canvasGroup, canvasImage, top, left, topBack, leftBack, badWords, loadingTime, isStepTwo, rectColor, switchDisable;\n\nfunction initText () {\n    const { textInput, fontsButtons, colorsButtons } = SELECTORS;\n    $(textInput).val('');\n    $(fontsButtons).removeClass('active');\n    $(fontsButtons).first().addClass('active');\n    $(colorsButtons).removeClass('active');\n    $(colorsButtons).first().addClass('active');\n\n    customizePosition = '0';\n    customizeText = '';\n    customizeFont = '\"Didot\",Times,serif';\n    customizePattern = '1';\n    customizeColor = '#000000';\n    allowedCharactersRegex = $(textInput).data('regex-pattern');\n}\n\nfunction initVariables () {\n    customizeSide = '0';\n    top = parseInt($(SELECTORS.pixelText).attr('top-desktop'));\n    left = parseInt($(SELECTORS.pixelText).attr('left-desktop'));\n    topBack = parseInt($(SELECTORS.pixelText).attr('top-desktop-back'));\n    leftBack = parseInt($(SELECTORS.pixelText).attr('left-desktop-back'));\n    switchDisable = $(SELECTORS.pixelText).attr('switch-disable') === 'true';\n    badWords = [];\n    loadingTime = 300;\n    isStepTwo = false;\n    rectColor = '#3C3738';\n\n    initText();\n}\n\n/**\n * @function initCanvas - Init the canvas\n * @returns {void}\n */\nfunction initCanvas (imageToLoad = SELECTORS.imgFront) {\n    canvas = new fabric.StaticCanvas('personalization-canvas', {\n        width: 2000,\n        height: 3000,\n        enableRetinaScaling: false\n    });\n\n    let transformX = left / canvas.width * 100;\n    let transformY = top / canvas.height * 100;\n    let translateY = transformY < 25 ? 0 : transformY > 75 ? -50 : 25 - transformY;\n\n    $(SELECTORS.personalizationCanvas).css({\n        transformOrigin: transformX + '% ' + transformY + '%',\n        transform: 'scale(1)',\n        top: isStepTwo ? translateY + '%' : '0'\n    });\n\n    $(SELECTORS.zoomButton).removeClass('active');\n\n    const canvasRatio = 7.125; // canvas ratio calculated based on the design dimensions of the image (2000/355)\n    canvasText = new fabric.Textbox(customizeText, {\n        top: top,\n        left: left,\n        originX: 'center',\n        originY: 'center',\n        width: canvasRatio * 48,\n        fontSize: canvasRatio * 10,\n        lineHeight: canvasRatio * 15,\n        fontFamily: customizeFont,\n        textAlign: 'center',\n        fill: customizeColor,\n    });\n\n    if (isStepTwo) {\n        canvasRect = new fabric.Rect({\n            strokeDashArray: [canvasRatio * 5, canvasRatio * 5],\n            top: top,\n            left: left,\n            originX: 'center',\n            originY: 'center',\n            width: canvasRatio * 48,\n            height: canvasRatio * 26,\n            fill: '',\n            stroke: rectColor,\n            strokeWidth: canvasRatio * 1\n        });\n    }\n\n    let imageUrl = $(imageToLoad).attr('src');\n    fabric.Image.fromURL(imageUrl, function (img) {\n        canvasImage = img.set({\n            top: 0,\n            selectable: false,\n            hasRotatingPoint: true,\n            width: canvas.width,\n            height: canvas.height\n        });\n        canvasImage.scaleToWidth(canvas.width);\n\n        if (isStepTwo) {\n            canvasGroup = new fabric.Group([canvasImage, canvasText, canvasRect], {});\n        } else {\n            canvasGroup = new fabric.Group([canvasImage, canvasText], {});\n        }\n        canvas.add(canvasGroup);\n\n        setTimeout(() => {\n            canvas.renderAll();\n        }, loadingTime);\n    });\n}\n\n/**\n * @function initForm - Saves customization values inside the submit form inputs\n */\nfunction initForm () {\n    $('.form-position').val(customizePosition);\n    $('.form-text').val(customizeText);\n    $('.form-font').val(customizeFont);\n    $('.form-pattern').val(customizePattern);\n    $('.form-color').val(customizeColor);\n    $('.form-color-selected-circle-src').val($('#imageColor').attr('src'));\n}\n\n/**\n * @function updateCanvasElem - Update the canvas element based on a property and value\n * @param {Object} elem - Canvas element\n * @param {String} property - Property to update\n * @param {*} value - Value to set\n */\nfunction updateCanvasElem (elem, property, value) {\n    if (elem) {\n        elem.set(property, value);\n\n        setTimeout(() => {\n            canvas.renderAll();\n        }, loadingTime);\n    }\n};\n\n/**\n * @function waitToLoadAllImages - Wait for all images to load\n * @returns {Promise} - Promise that resolves when all images are loaded\n */\nfunction waitToLoadAllImages () {\n    let defer = jQuery.Deferred();\n    let imagesNumber = $('.js-personalization-image').length;\n    let loadComplete = 0;\n    $('.js-personalization-image').one('load', function () {\n        loadComplete++;\n        if (loadComplete === imagesNumber) {\n            defer.resolve(true);\n        }\n    }).on('error', function () {\n        loadComplete++;\n        if (loadComplete === imagesNumber) {\n            defer.resolve(true);\n        }\n    }).each(function () {\n        if (this.complete) {\n            $(this).trigger('load');\n        } else if (this.error) {\n            $(this).error();\n        }\n    });\n    return defer.promise();\n};\n\n/**\n * @function runPersonalizationListener - Init the canvas, add event listeners on the modal elements and init the form\n */\nfunction runPersonalizationListener () {\n    initVariables();\n    sizePanel.init('#size-panel-mobile-pers');\n    $('#size').attr('size-attribute', $('[data-attr=\"size\"] input:checked').attr('id'));\n\n    waitToLoadAllImages().then(function () {\n        initCanvas();\n        positionChoice();\n    });\n\n    initForm();\n\n    $('#input-type1').on('input', function () {\n        editTextOnCanvas();\n    });\n\n    /**\n     * Change the color of the text on the canvas\n     */\n    $(document).on('click', '.js-choice-editor .cc-choice-pattern_item', function (e) {\n        customizePattern = $(this).find('img').attr('src');\n        customizeColor = $(this).find('img').attr('alt');\n        let colorName = $(this).find('img').data('name');\n        $('.js-color-value').text(colorName);\n        $('.js-customizePage').find('.js-choice-editor .cc-choice-pattern_item.active').removeClass('active');\n        $(this).addClass('active');\n\n        updateCanvasElem(canvasText, 'fill', customizeColor);\n\n        e.stopPropagation();\n    });\n\n    /**\n     * Select one of the 2 available hotspost\n     */\n    $(document).off('click', '.js-customizePage .js-positionChoice-1, .js-customizePage .js-positionChoice-2');\n    $(document).on('click', '.js-customizePage .js-positionChoice-1, .js-customizePage .js-positionChoice-2', function (e) {\n        isStepTwo = true;\n        if ($(this).hasClass('js-positionChoice-1')) {\n            selectPosition(1);\n        } else if ($(this).hasClass('js-positionChoice-2')) {\n            selectPosition(2);\n        }\n        choicePosition();\n        $('.js-customizePage .js-positionChoice-1, .js-customizePage .js-positionChoice-2').hide();\n        e.stopPropagation();\n    });\n\n    onZoomButtonClick();\n}\n\n/**\n * @function onZoomButtonClick - Add event listener on the zoom button, to zoom in/out the canvas\n */\nfunction onZoomButtonClick () {\n    $(SELECTORS.zoomButton).on('click', function (e) {\n        const $this = $(this);\n        const scaleValue = $this.hasClass('active') ? 1 : 1.9;\n\n        $(SELECTORS.personalizationCanvas).css({\n            transform: 'scale(' + scaleValue + ')'\n        });\n\n        $this.toggleClass('active');\n        e.stopPropagation();\n    });\n}\n\n/**\n * @function editTextOnCanvas - Update the text on the canvas\n */\nfunction editTextOnCanvas () {\n    customizeText = $('#input-type1').val();\n    let badWordsFlag = false;\n\n    if (badWords.includes(customizeText.toLowerCase())) {\n        badWordsFlag = true;\n        customizeText = '';\n        $('.js-personalizeButtonModal').attr('disabled', true);\n        $('.content-input-err').removeClass('hidden');\n    } else {\n        $('.js-personalizeButtonModal').attr('disabled', false);\n        $('.content-input-err').addClass('hidden');\n    }\n    if (customizeText === undefined || customizeText === '') {\n        $('.js-personalizeButtonModal').attr('disabled', true);\n        $('.content-input-err-cyrillic').addClass('hidden');\n    } else {\n        $('.js-personalizeButtonModal').attr('disabled', false);\n\n        if (!badWordsFlag) {\n            const isRegexValid = customizeText.toLowerCase().match(allowedCharactersRegex);\n            if (!isRegexValid) {\n                $('.js-personalizeButtonModal').attr('disabled', true);\n                $('.content-input-err-cyrillic').removeClass('hidden');\n            } else {\n                $('.js-personalizeButtonModal').attr('disabled', false);\n                $('.content-input-err-cyrillic').addClass('hidden');\n            }\n        }\n    }\n\n    updateCanvasElem(canvasText, 'text', customizeText);\n\n    if (customizeText !== '') {\n        updateCanvasElem(canvasRect, 'stroke', '');\n    } else {\n        updateCanvasElem(canvasRect, 'stroke', rectColor);\n    }\n}\n\n/**\n * @function updateCanvas - Re-load the canvas with a new image\n * @param {String} imageToLoad - Selector of the image tag to use for the canvas\n */\nfunction updateCanvas (imageToLoad) {\n    canvas.clear();\n    initCanvas(imageToLoad);\n}\n\n/**\n * @function choicePosition - Go to step 2, function is called after clicking on the hotspot\n */\nlet choicePosition = function () {\n    const { page, mainChoice, showOtherSide, stepOne, stepTwo, termsBottomDesktop, footer, zoomButton } = SELECTORS;\n\n    if (customizePosition !== '0') {\n        $(mainChoice).addClass('visible');\n        $(stepOne + ', ' + termsBottomDesktop).removeClass('cc-visible');\n        $(stepTwo + ', ' + footer).addClass('cc-visible');\n        $(showOtherSide).removeClass('back').addClass('hide');\n        $(zoomButton).removeClass('hide');\n        $(page).removeClass(CLASSES.pageStepOne).addClass(CLASSES.pageStepTwo);\n    }\n};\n\n/**\n * @function backChoicePosition - Go back to step 1, function is called after clicking on the back button\n */\nlet backChoicePosition = function () {\n    const { page, mainChoice, hotspotOne, hotspotTwo, stepOne, stepTwo, termsBottomDesktop, footer, showOtherSide, zoomButton } = SELECTORS;\n    isStepTwo = false;\n    if (customizeSide !== '0') {\n        $(showOtherSide).removeClass('hide');\n\n        if (customizeSide === '1') {\n            $(showOtherSide).addClass('back').removeClass('front');\n        } else {\n            $(showOtherSide).addClass('front').removeClass('back');\n        }\n    } else {\n        $(hotspotOne).removeClass('hide');\n        $(hotspotTwo).removeClass('hide');\n    }\n    const imageToLoad = customizeSide === '1' || customizeSide === '0' ? $(SELECTORS.imgFront) : $(SELECTORS.imgBack);\n\n    canvas.clear();\n    initText();\n    initCanvas(imageToLoad);\n\n    $(mainChoice).removeClass('visible');\n    $(stepOne + ', ' + termsBottomDesktop).addClass('cc-visible');\n    $(stepTwo + ', ' + footer).removeClass('cc-visible');\n    $(page).addClass(CLASSES.pageStepOne).removeClass(CLASSES.pageStepTwo);\n    $(hotspotOne + ', ' + hotspotTwo).show();\n    $(zoomButton).removeClass('active').addClass('hide');\n};\n\n/**\n * @function selectPosition - Select if we are using the image front or back\n * @param {Number} pos - 1: front, 2: back\n */\nfunction selectPosition (pos) {\n    const { imgFront, imgBack, pixelText, hotspotOne, hotspotTwo, showOtherSide } = SELECTORS;\n    let imageToLoad = $(imgFront);\n    if (pos === 1 || pos === 0) {\n        top = parseInt($(pixelText).attr('top-desktop'));\n        left = parseInt($(pixelText).attr('left-desktop'));\n        customizePosition = pos;\n        $(showOtherSide).addClass('back').removeClass('front');\n        $(hotspotOne).removeClass('hide');\n        if (pos !== 0) {\n            $(hotspotTwo).addClass('hide');\n        }\n    } else {\n        top = parseInt($(pixelText).attr('top-desktop-back'));\n        left = parseInt($(pixelText).attr('left-desktop-back'));\n        imageToLoad = $(imgBack);\n        customizePosition = '2';\n        $(showOtherSide).addClass('front').removeClass('back');\n        $(hotspotOne).addClass('hide');\n        $(hotspotTwo).removeClass('hide');\n    }\n\n    updateCanvas(imageToLoad);\n}\n\n/**\n * @function positionChoice - Add event listeners on the position buttons\n */\nfunction positionChoice () {\n    const imageFront = $('#img-url-front').attr('data-url').replace(/&/g, '&amp;');\n    const imageBack = $('#img-url-back').attr('data-url').replace(/&/g, '&amp;');\n    const topPercentage = (top / canvas.height) * 100;\n    const leftPercentage = (left / canvas.width) * 100;\n    const topBackPercentage = (topBack / canvas.height) * 100;\n    const leftBackPercentage = (leftBack / canvas.width) * 100;\n\n    if (imageBack !== '') {\n        let $position1 = $('<button></button>').html($('.cordinates-spot-icon i').html()).addClass('js-pers-hotspotBtn js-positionChoice-1 cc-pers-hotspotBtn');\n        let $position2 = $('<button></button>').html($('.cordinates-spot-icon i').html()).addClass('js-pers-hotspotBtn js-positionChoice-2 cc-pers-hotspotBtn');\n        $position1.css({'position': 'absolute', 'top': topPercentage + '%', 'left': leftPercentage + '%', 'display': 'flex'}).appendTo('.js-section-module_result_image');\n        $position2.css({'position': 'absolute', 'top': topBackPercentage + '%', 'left': leftBackPercentage + '%', 'display': 'flex'}).appendTo('.js-section-module_result_image');\n        $position1.data('position', '1');\n        $position2.data('position', '2');\n\n        if (imageFront !== imageBack && !switchDisable) {\n            $('.js-show-other-side').removeClass('hide').addClass('back');\n            selectPosition(1);\n            customizeSide = '1';\n        } else {\n            $('.js-show-other-side').addClass('hide');\n            selectPosition(0);\n            customizeSide = '0';\n        }\n    } else {\n        let $position1 = $('<button></button>').html($('.cordinates-spot-icon i').html()).addClass('js-pers-hotspotBtn js-positionChoice-1 cc-pers-hotspotBtn');\n        $position1.css({'position': 'absolute', 'top': topPercentage + '%', 'left': leftPercentage + '%', 'display': 'flex'}).appendTo('.js-section-module_result_image');\n        selectPosition(0);\n        customizeSide = '0';\n        $position1.data('position', '1');\n    }\n\n    /**\n     * Add event listener on go back button (return to step 1);\n     */\n    $(document).off('click', '.cc-customizePage-topbar .js-page-back');\n    $(document).on('click', '.cc-customizePage-topbar .js-page-back', function (e) {\n        backChoicePosition();\n        e.stopPropagation();\n        $('body').trigger('customize:actions', {\n            action: 'back',\n            pid: $('.js-customizePage').data('pid')\n        });\n    });\n\n    // Cambio Fronte/Retro\n    $(document).off('click', '.js-show-other-side .js-other-side-btn');\n    $(document).on('click', '.js-show-other-side .js-other-side-btn', function (e) {\n        if ($(this).closest('.js-show-other-side').hasClass('front')) {\n            $(this).closest('.js-show-other-side').removeClass('front').addClass('back');\n            selectPosition(1);\n            customizeSide = '1';\n        } else {\n            $(this).closest('.js-show-other-side').removeClass('back').addClass('front');\n            selectPosition(2);\n            customizeSide = '2';\n        }\n    });\n\n    $(document).on('click', '.js-choice-editor .cc-choice-item', function (e) {\n        customizeFont = $(this).data('font');\n        $('.form-font').val(customizeFont);\n\n        $('.js-choice-editor .cc-choice-item.active').removeClass('active');\n        $(this).addClass('active');\n        $('#input-type1').css('font-family', customizeFont);\n\n        updateCanvasElem(canvasText, 'fontFamily', customizeFont);\n        e.stopPropagation();\n    });\n\n    /**\n     * Creates new canvas for the export and populates data for add to cart\n     */\n    $(document).on('click', SELECTORS.personalizeAddToCart, function (e) {\n        initForm();\n\n        $.spinner().start();\n\n        let canvasOptions = {\n            top: top,\n            left: left,\n            customizeText: customizeText,\n            customizeFont: customizeFont,\n            customizeColor: customizeColor,\n            imageToLoad: customizeSide === '1' || customizeSide === '0' ? $(SELECTORS.imgFront) : $(SELECTORS.imgBack)\n        };\n        let svgAllFormat = generateSvgForOTP(canvasOptions);\n        let base64FullSVG = svgAllFormat.personalizationFullSVG;\n        $('#base64').attr('data-fullSVG', base64FullSVG);\n        let base64TextFullSVG = svgAllFormat.personalizationTextSVG;\n        $('#base64').attr('data-fullTextSVG', base64TextFullSVG);\n        let base64TextSmallSVG = svgAllFormat.personalizationSmallSVG;\n        $('#base64').attr('data-smallSVG', base64TextSmallSVG);\n        $.spinner().stop();\n\n        let size = $('#size').attr('size-attribute').replace('/', '~');\n        if (size !== '') {\n            $('#' + size).attr('checked', true);\n        }\n\n        // Update modal add-to-cart\n        $('body').on('product:updateAddToCart', (e, response) => {\n            if (!response.product.readyToOrder || !response.product.available || response.product.comingSoon) {\n                if (this.sizeModal && this.sizeModal.modal) {\n                    $(this.sizeModal.modalBox).find('button.js-add-to-cart').attr('disabled', true);\n                }\n            } else if (this.sizeModal && this.sizeModal.modal) {\n                $(this.sizeModal.modalBox).find('button.js-add-to-cart').attr('disabled', false);\n            }\n        });\n\n        // Close the modal when a product is added to the cart\n        $('body').on('product:afterAddToCart', (e) => {\n            if (this.sizeModal && this.sizeModal.modal) {\n                this.sizeModal.close();\n                this.sizeModal.destroy();\n            }\n        });\n\n        $('.js-personalizeButtonCheckout.js-add-to-cart').trigger('click');\n    });\n\n    // Modal Customize Terms\n    $(SELECTORS.termsAndConditionsModal).on('click', function (e) {\n        e.preventDefault();\n        const htmlContent = $($(this).data('target')).html();\n        // create and open confirmation modal\n        const modal = newModalFromString(htmlContent, false);\n        $('.tingle-modal:not(.jsPersonalizationToolModal)').addClass('cc-modalCustomizeTerms');\n        $('.cc-modalCustomizeTerms .tingle-modal-box').addClass('cc-modalCustomizeTerms-container rightModalAttribute');\n        $('.cc-modalCustomizeTerms .tingle-modal-box__content').addClass('cc-modalCustomizeTerms-container-modal');\n        modal.open();\n        modal.setContent(document.querySelector('.js-ModalCustomizeTerms').innerHTML);\n        $(modal.modalBox)\n            .find('.close')\n            .on('click', function (e) {\n                modal.close();\n            });\n\n        $('.js-inside-close-modal, [data-dismiss=\"modalBigContent\"]').on('click', function (e) {\n            e.preventDefault();\n            modal.close();\n        });\n    });\n\n    $(SELECTORS.analyticsCustomizeAction).on('click', function (e) {\n        let pid = $('.js-customizePage').data('pid');\n        let action = $(e.currentTarget).data('action');\n        $('body').trigger('customize:actions', {action: action, pid: pid});\n    });\n\n    $(SELECTORS.pageClose).on('click', function (e) {\n        $('body').trigger('customize:actions', {\n            action: 'close', \n            pid: $('.js-customizePage').data('pid')\n        });\n        $('.jsPersonalizationToolModal .tingle-modal__close').trigger('click');\n        initVariables();\n        sizePanel.init();\n    });\n\n    // Hot spot selection - define \"position\" attribute\n    $('body').on('click', '.js-pers-hotspotBtn', e => {\n        customizePosition = $(e.currentTarget).data('position');\n        $('.form-position').val(customizePosition);\n    });\n};\n\nmodule.exports = {\n    runPersonalizationListener: runPersonalizationListener,\n};\n","/*!\n * The buffer module from node.js, for the browser.\n *\n * @author   Feross Aboukhadijeh <http://feross.org>\n * @license  MIT\n */\n/* eslint-disable no-proto */\n\n'use strict'\n\nvar base64 = require('base64-js')\nvar ieee754 = require('ieee754')\nvar isArray = require('isarray')\n\nexports.Buffer = Buffer\nexports.SlowBuffer = SlowBuffer\nexports.INSPECT_MAX_BYTES = 50\n\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n *   === true    Use Uint8Array implementation (fastest)\n *   === false   Use Object implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * Due to various browser bugs, sometimes the Object implementation will be used even\n * when the browser supports typed arrays.\n *\n * Note:\n *\n *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,\n *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.\n *\n *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.\n *\n *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of\n *     incorrect length in some situations.\n\n * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they\n * get the Object implementation, which is slower but behaves correctly.\n */\nBuffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined\n  ? global.TYPED_ARRAY_SUPPORT\n  : typedArraySupport()\n\n/*\n * Export kMaxLength after typed array support is determined.\n */\nexports.kMaxLength = kMaxLength()\n\nfunction typedArraySupport () {\n  try {\n    var arr = new Uint8Array(1)\n    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}\n    return arr.foo() === 42 && // typed array instances can be augmented\n        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`\n        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`\n  } catch (e) {\n    return false\n  }\n}\n\nfunction kMaxLength () {\n  return Buffer.TYPED_ARRAY_SUPPORT\n    ? 0x7fffffff\n    : 0x3fffffff\n}\n\nfunction createBuffer (that, length) {\n  if (kMaxLength() < length) {\n    throw new RangeError('Invalid typed array length')\n  }\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = new Uint8Array(length)\n    that.__proto__ = Buffer.prototype\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    if (that === null) {\n      that = new Buffer(length)\n    }\n    that.length = length\n  }\n\n  return that\n}\n\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\nfunction Buffer (arg, encodingOrOffset, length) {\n  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {\n    return new Buffer(arg, encodingOrOffset, length)\n  }\n\n  // Common case.\n  if (typeof arg === 'number') {\n    if (typeof encodingOrOffset === 'string') {\n      throw new Error(\n        'If encoding is specified then the first argument must be a string'\n      )\n    }\n    return allocUnsafe(this, arg)\n  }\n  return from(this, arg, encodingOrOffset, length)\n}\n\nBuffer.poolSize = 8192 // not used by this implementation\n\n// TODO: Legacy, not needed anymore. Remove in next major version.\nBuffer._augment = function (arr) {\n  arr.__proto__ = Buffer.prototype\n  return arr\n}\n\nfunction from (that, value, encodingOrOffset, length) {\n  if (typeof value === 'number') {\n    throw new TypeError('\"value\" argument must not be a number')\n  }\n\n  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {\n    return fromArrayBuffer(that, value, encodingOrOffset, length)\n  }\n\n  if (typeof value === 'string') {\n    return fromString(that, value, encodingOrOffset)\n  }\n\n  return fromObject(that, value)\n}\n\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\nBuffer.from = function (value, encodingOrOffset, length) {\n  return from(null, value, encodingOrOffset, length)\n}\n\nif (Buffer.TYPED_ARRAY_SUPPORT) {\n  Buffer.prototype.__proto__ = Uint8Array.prototype\n  Buffer.__proto__ = Uint8Array\n  if (typeof Symbol !== 'undefined' && Symbol.species &&\n      Buffer[Symbol.species] === Buffer) {\n    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97\n    Object.defineProperty(Buffer, Symbol.species, {\n      value: null,\n      configurable: true\n    })\n  }\n}\n\nfunction assertSize (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('\"size\" argument must be a number')\n  } else if (size < 0) {\n    throw new RangeError('\"size\" argument must not be negative')\n  }\n}\n\nfunction alloc (that, size, fill, encoding) {\n  assertSize(size)\n  if (size <= 0) {\n    return createBuffer(that, size)\n  }\n  if (fill !== undefined) {\n    // Only pay attention to encoding if it's a string. This\n    // prevents accidentally sending in a number that would\n    // be interpretted as a start offset.\n    return typeof encoding === 'string'\n      ? createBuffer(that, size).fill(fill, encoding)\n      : createBuffer(that, size).fill(fill)\n  }\n  return createBuffer(that, size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n  return alloc(null, size, fill, encoding)\n}\n\nfunction allocUnsafe (that, size) {\n  assertSize(size)\n  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) {\n    for (var i = 0; i < size; ++i) {\n      that[i] = 0\n    }\n  }\n  return that\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n  return allocUnsafe(null, size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n  return allocUnsafe(null, size)\n}\n\nfunction fromString (that, string, encoding) {\n  if (typeof encoding !== 'string' || encoding === '') {\n    encoding = 'utf8'\n  }\n\n  if (!Buffer.isEncoding(encoding)) {\n    throw new TypeError('\"encoding\" must be a valid string encoding')\n  }\n\n  var length = byteLength(string, encoding) | 0\n  that = createBuffer(that, length)\n\n  var actual = that.write(string, encoding)\n\n  if (actual !== length) {\n    // Writing a hex string, for example, that contains invalid characters will\n    // cause everything after the first invalid character to be ignored. (e.g.\n    // 'abxxcd' will be treated as 'ab')\n    that = that.slice(0, actual)\n  }\n\n  return that\n}\n\nfunction fromArrayLike (that, array) {\n  var length = array.length < 0 ? 0 : checked(array.length) | 0\n  that = createBuffer(that, length)\n  for (var i = 0; i < length; i += 1) {\n    that[i] = array[i] & 255\n  }\n  return that\n}\n\nfunction fromArrayBuffer (that, array, byteOffset, length) {\n  array.byteLength // this throws if `array` is not a valid ArrayBuffer\n\n  if (byteOffset < 0 || array.byteLength < byteOffset) {\n    throw new RangeError('\\'offset\\' is out of bounds')\n  }\n\n  if (array.byteLength < byteOffset + (length || 0)) {\n    throw new RangeError('\\'length\\' is out of bounds')\n  }\n\n  if (byteOffset === undefined && length === undefined) {\n    array = new Uint8Array(array)\n  } else if (length === undefined) {\n    array = new Uint8Array(array, byteOffset)\n  } else {\n    array = new Uint8Array(array, byteOffset, length)\n  }\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = array\n    that.__proto__ = Buffer.prototype\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    that = fromArrayLike(that, array)\n  }\n  return that\n}\n\nfunction fromObject (that, obj) {\n  if (Buffer.isBuffer(obj)) {\n    var len = checked(obj.length) | 0\n    that = createBuffer(that, len)\n\n    if (that.length === 0) {\n      return that\n    }\n\n    obj.copy(that, 0, 0, len)\n    return that\n  }\n\n  if (obj) {\n    if ((typeof ArrayBuffer !== 'undefined' &&\n        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {\n      if (typeof obj.length !== 'number' || isnan(obj.length)) {\n        return createBuffer(that, 0)\n      }\n      return fromArrayLike(that, obj)\n    }\n\n    if (obj.type === 'Buffer' && isArray(obj.data)) {\n      return fromArrayLike(that, obj.data)\n    }\n  }\n\n  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')\n}\n\nfunction checked (length) {\n  // Note: cannot use `length < kMaxLength()` here because that fails when\n  // length is NaN (which is otherwise coerced to zero.)\n  if (length >= kMaxLength()) {\n    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n                         'size: 0x' + kMaxLength().toString(16) + ' bytes')\n  }\n  return length | 0\n}\n\nfunction SlowBuffer (length) {\n  if (+length != length) { // eslint-disable-line eqeqeq\n    length = 0\n  }\n  return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n  return !!(b != null && b._isBuffer)\n}\n\nBuffer.compare = function compare (a, b) {\n  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n    throw new TypeError('Arguments must be Buffers')\n  }\n\n  if (a === b) return 0\n\n  var x = a.length\n  var y = b.length\n\n  for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n    if (a[i] !== b[i]) {\n      x = a[i]\n      y = b[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n  switch (String(encoding).toLowerCase()) {\n    case 'hex':\n    case 'utf8':\n    case 'utf-8':\n    case 'ascii':\n    case 'latin1':\n    case 'binary':\n    case 'base64':\n    case 'ucs2':\n    case 'ucs-2':\n    case 'utf16le':\n    case 'utf-16le':\n      return true\n    default:\n      return false\n  }\n}\n\nBuffer.concat = function concat (list, length) {\n  if (!isArray(list)) {\n    throw new TypeError('\"list\" argument must be an Array of Buffers')\n  }\n\n  if (list.length === 0) {\n    return Buffer.alloc(0)\n  }\n\n  var i\n  if (length === undefined) {\n    length = 0\n    for (i = 0; i < list.length; ++i) {\n      length += list[i].length\n    }\n  }\n\n  var buffer = Buffer.allocUnsafe(length)\n  var pos = 0\n  for (i = 0; i < list.length; ++i) {\n    var buf = list[i]\n    if (!Buffer.isBuffer(buf)) {\n      throw new TypeError('\"list\" argument must be an Array of Buffers')\n    }\n    buf.copy(buffer, pos)\n    pos += buf.length\n  }\n  return buffer\n}\n\nfunction byteLength (string, encoding) {\n  if (Buffer.isBuffer(string)) {\n    return string.length\n  }\n  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&\n      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {\n    return string.byteLength\n  }\n  if (typeof string !== 'string') {\n    string = '' + string\n  }\n\n  var len = string.length\n  if (len === 0) return 0\n\n  // Use a for loop to avoid recursion\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'ascii':\n      case 'latin1':\n      case 'binary':\n        return len\n      case 'utf8':\n      case 'utf-8':\n      case undefined:\n        return utf8ToBytes(string).length\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return len * 2\n      case 'hex':\n        return len >>> 1\n      case 'base64':\n        return base64ToBytes(string).length\n      default:\n        if (loweredCase) return utf8ToBytes(string).length // assume utf8\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n  var loweredCase = false\n\n  // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n  // property of a typed array.\n\n  // This behaves neither like String nor Uint8Array in that we set start/end\n  // to their upper/lower bounds if the value passed is out of range.\n  // undefined is handled specially as per ECMA-262 6th Edition,\n  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n  if (start === undefined || start < 0) {\n    start = 0\n  }\n  // Return early if start > this.length. Done here to prevent potential uint32\n  // coercion fail below.\n  if (start > this.length) {\n    return ''\n  }\n\n  if (end === undefined || end > this.length) {\n    end = this.length\n  }\n\n  if (end <= 0) {\n    return ''\n  }\n\n  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n  end >>>= 0\n  start >>>= 0\n\n  if (end <= start) {\n    return ''\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  while (true) {\n    switch (encoding) {\n      case 'hex':\n        return hexSlice(this, start, end)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Slice(this, start, end)\n\n      case 'ascii':\n        return asciiSlice(this, start, end)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Slice(this, start, end)\n\n      case 'base64':\n        return base64Slice(this, start, end)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return utf16leSlice(this, start, end)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = (encoding + '').toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\n// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect\n// Buffer instances.\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n  var i = b[n]\n  b[n] = b[m]\n  b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n  var len = this.length\n  if (len % 2 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 16-bits')\n  }\n  for (var i = 0; i < len; i += 2) {\n    swap(this, i, i + 1)\n  }\n  return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n  var len = this.length\n  if (len % 4 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 32-bits')\n  }\n  for (var i = 0; i < len; i += 4) {\n    swap(this, i, i + 3)\n    swap(this, i + 1, i + 2)\n  }\n  return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n  var len = this.length\n  if (len % 8 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 64-bits')\n  }\n  for (var i = 0; i < len; i += 8) {\n    swap(this, i, i + 7)\n    swap(this, i + 1, i + 6)\n    swap(this, i + 2, i + 5)\n    swap(this, i + 3, i + 4)\n  }\n  return this\n}\n\nBuffer.prototype.toString = function toString () {\n  var length = this.length | 0\n  if (length === 0) return ''\n  if (arguments.length === 0) return utf8Slice(this, 0, length)\n  return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.equals = function equals (b) {\n  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n  if (this === b) return true\n  return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n  var str = ''\n  var max = exports.INSPECT_MAX_BYTES\n  if (this.length > 0) {\n    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')\n    if (this.length > max) str += ' ... '\n  }\n  return '<Buffer ' + str + '>'\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n  if (!Buffer.isBuffer(target)) {\n    throw new TypeError('Argument must be a Buffer')\n  }\n\n  if (start === undefined) {\n    start = 0\n  }\n  if (end === undefined) {\n    end = target ? target.length : 0\n  }\n  if (thisStart === undefined) {\n    thisStart = 0\n  }\n  if (thisEnd === undefined) {\n    thisEnd = this.length\n  }\n\n  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n    throw new RangeError('out of range index')\n  }\n\n  if (thisStart >= thisEnd && start >= end) {\n    return 0\n  }\n  if (thisStart >= thisEnd) {\n    return -1\n  }\n  if (start >= end) {\n    return 1\n  }\n\n  start >>>= 0\n  end >>>= 0\n  thisStart >>>= 0\n  thisEnd >>>= 0\n\n  if (this === target) return 0\n\n  var x = thisEnd - thisStart\n  var y = end - start\n  var len = Math.min(x, y)\n\n  var thisCopy = this.slice(thisStart, thisEnd)\n  var targetCopy = target.slice(start, end)\n\n  for (var i = 0; i < len; ++i) {\n    if (thisCopy[i] !== targetCopy[i]) {\n      x = thisCopy[i]\n      y = targetCopy[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n  // Empty buffer means no match\n  if (buffer.length === 0) return -1\n\n  // Normalize byteOffset\n  if (typeof byteOffset === 'string') {\n    encoding = byteOffset\n    byteOffset = 0\n  } else if (byteOffset > 0x7fffffff) {\n    byteOffset = 0x7fffffff\n  } else if (byteOffset < -0x80000000) {\n    byteOffset = -0x80000000\n  }\n  byteOffset = +byteOffset  // Coerce to Number.\n  if (isNaN(byteOffset)) {\n    // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n    byteOffset = dir ? 0 : (buffer.length - 1)\n  }\n\n  // Normalize byteOffset: negative offsets start from the end of the buffer\n  if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n  if (byteOffset >= buffer.length) {\n    if (dir) return -1\n    else byteOffset = buffer.length - 1\n  } else if (byteOffset < 0) {\n    if (dir) byteOffset = 0\n    else return -1\n  }\n\n  // Normalize val\n  if (typeof val === 'string') {\n    val = Buffer.from(val, encoding)\n  }\n\n  // Finally, search either indexOf (if dir is true) or lastIndexOf\n  if (Buffer.isBuffer(val)) {\n    // Special case: looking for empty string/buffer always fails\n    if (val.length === 0) {\n      return -1\n    }\n    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n  } else if (typeof val === 'number') {\n    val = val & 0xFF // Search for a byte value [0-255]\n    if (Buffer.TYPED_ARRAY_SUPPORT &&\n        typeof Uint8Array.prototype.indexOf === 'function') {\n      if (dir) {\n        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n      } else {\n        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n      }\n    }\n    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)\n  }\n\n  throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n  var indexSize = 1\n  var arrLength = arr.length\n  var valLength = val.length\n\n  if (encoding !== undefined) {\n    encoding = String(encoding).toLowerCase()\n    if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n        encoding === 'utf16le' || encoding === 'utf-16le') {\n      if (arr.length < 2 || val.length < 2) {\n        return -1\n      }\n      indexSize = 2\n      arrLength /= 2\n      valLength /= 2\n      byteOffset /= 2\n    }\n  }\n\n  function read (buf, i) {\n    if (indexSize === 1) {\n      return buf[i]\n    } else {\n      return buf.readUInt16BE(i * indexSize)\n    }\n  }\n\n  var i\n  if (dir) {\n    var foundIndex = -1\n    for (i = byteOffset; i < arrLength; i++) {\n      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n        if (foundIndex === -1) foundIndex = i\n        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n      } else {\n        if (foundIndex !== -1) i -= i - foundIndex\n        foundIndex = -1\n      }\n    }\n  } else {\n    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n    for (i = byteOffset; i >= 0; i--) {\n      var found = true\n      for (var j = 0; j < valLength; j++) {\n        if (read(arr, i + j) !== read(val, j)) {\n          found = false\n          break\n        }\n      }\n      if (found) return i\n    }\n  }\n\n  return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n  return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n  offset = Number(offset) || 0\n  var remaining = buf.length - offset\n  if (!length) {\n    length = remaining\n  } else {\n    length = Number(length)\n    if (length > remaining) {\n      length = remaining\n    }\n  }\n\n  // must be an even number of digits\n  var strLen = string.length\n  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')\n\n  if (length > strLen / 2) {\n    length = strLen / 2\n  }\n  for (var i = 0; i < length; ++i) {\n    var parsed = parseInt(string.substr(i * 2, 2), 16)\n    if (isNaN(parsed)) return i\n    buf[offset + i] = parsed\n  }\n  return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n  return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction latin1Write (buf, string, offset, length) {\n  return asciiWrite(buf, string, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n  return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n  // Buffer#write(string)\n  if (offset === undefined) {\n    encoding = 'utf8'\n    length = this.length\n    offset = 0\n  // Buffer#write(string, encoding)\n  } else if (length === undefined && typeof offset === 'string') {\n    encoding = offset\n    length = this.length\n    offset = 0\n  // Buffer#write(string, offset[, length][, encoding])\n  } else if (isFinite(offset)) {\n    offset = offset | 0\n    if (isFinite(length)) {\n      length = length | 0\n      if (encoding === undefined) encoding = 'utf8'\n    } else {\n      encoding = length\n      length = undefined\n    }\n  // legacy write(string, encoding, offset, length) - remove in v0.13\n  } else {\n    throw new Error(\n      'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n    )\n  }\n\n  var remaining = this.length - offset\n  if (length === undefined || length > remaining) length = remaining\n\n  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n    throw new RangeError('Attempt to write outside buffer bounds')\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'hex':\n        return hexWrite(this, string, offset, length)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Write(this, string, offset, length)\n\n      case 'ascii':\n        return asciiWrite(this, string, offset, length)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Write(this, string, offset, length)\n\n      case 'base64':\n        // Warning: maxLength not taken into account in base64Write\n        return base64Write(this, string, offset, length)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return ucs2Write(this, string, offset, length)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n  return {\n    type: 'Buffer',\n    data: Array.prototype.slice.call(this._arr || this, 0)\n  }\n}\n\nfunction base64Slice (buf, start, end) {\n  if (start === 0 && end === buf.length) {\n    return base64.fromByteArray(buf)\n  } else {\n    return base64.fromByteArray(buf.slice(start, end))\n  }\n}\n\nfunction utf8Slice (buf, start, end) {\n  end = Math.min(buf.length, end)\n  var res = []\n\n  var i = start\n  while (i < end) {\n    var firstByte = buf[i]\n    var codePoint = null\n    var bytesPerSequence = (firstByte > 0xEF) ? 4\n      : (firstByte > 0xDF) ? 3\n      : (firstByte > 0xBF) ? 2\n      : 1\n\n    if (i + bytesPerSequence <= end) {\n      var secondByte, thirdByte, fourthByte, tempCodePoint\n\n      switch (bytesPerSequence) {\n        case 1:\n          if (firstByte < 0x80) {\n            codePoint = firstByte\n          }\n          break\n        case 2:\n          secondByte = buf[i + 1]\n          if ((secondByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n            if (tempCodePoint > 0x7F) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 3:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 4:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          fourthByte = buf[i + 3]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n              codePoint = tempCodePoint\n            }\n          }\n      }\n    }\n\n    if (codePoint === null) {\n      // we did not generate a valid codePoint so insert a\n      // replacement char (U+FFFD) and advance only 1 byte\n      codePoint = 0xFFFD\n      bytesPerSequence = 1\n    } else if (codePoint > 0xFFFF) {\n      // encode to utf16 (surrogate pair dance)\n      codePoint -= 0x10000\n      res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n      codePoint = 0xDC00 | codePoint & 0x3FF\n    }\n\n    res.push(codePoint)\n    i += bytesPerSequence\n  }\n\n  return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nvar MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n  var len = codePoints.length\n  if (len <= MAX_ARGUMENTS_LENGTH) {\n    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n  }\n\n  // Decode in chunks to avoid \"call stack size exceeded\".\n  var res = ''\n  var i = 0\n  while (i < len) {\n    res += String.fromCharCode.apply(\n      String,\n      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n    )\n  }\n  return res\n}\n\nfunction asciiSlice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i] & 0x7F)\n  }\n  return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i])\n  }\n  return ret\n}\n\nfunction hexSlice (buf, start, end) {\n  var len = buf.length\n\n  if (!start || start < 0) start = 0\n  if (!end || end < 0 || end > len) end = len\n\n  var out = ''\n  for (var i = start; i < end; ++i) {\n    out += toHex(buf[i])\n  }\n  return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n  var bytes = buf.slice(start, end)\n  var res = ''\n  for (var i = 0; i < bytes.length; i += 2) {\n    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)\n  }\n  return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n  var len = this.length\n  start = ~~start\n  end = end === undefined ? len : ~~end\n\n  if (start < 0) {\n    start += len\n    if (start < 0) start = 0\n  } else if (start > len) {\n    start = len\n  }\n\n  if (end < 0) {\n    end += len\n    if (end < 0) end = 0\n  } else if (end > len) {\n    end = len\n  }\n\n  if (end < start) end = start\n\n  var newBuf\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    newBuf = this.subarray(start, end)\n    newBuf.__proto__ = Buffer.prototype\n  } else {\n    var sliceLen = end - start\n    newBuf = new Buffer(sliceLen, undefined)\n    for (var i = 0; i < sliceLen; ++i) {\n      newBuf[i] = this[i + start]\n    }\n  }\n\n  return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    checkOffset(offset, byteLength, this.length)\n  }\n\n  var val = this[offset + --byteLength]\n  var mul = 1\n  while (byteLength > 0 && (mul *= 0x100)) {\n    val += this[offset + --byteLength] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  return this[offset]\n}\n\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return ((this[offset]) |\n      (this[offset + 1] << 8) |\n      (this[offset + 2] << 16)) +\n      (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] * 0x1000000) +\n    ((this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    this[offset + 3])\n}\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var i = byteLength\n  var mul = 1\n  var val = this[offset + --i]\n  while (i > 0 && (mul *= 0x100)) {\n    val += this[offset + --i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  if (!(this[offset] & 0x80)) return (this[offset])\n  return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset] | (this[offset + 1] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset + 1] | (this[offset] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset]) |\n    (this[offset + 1] << 8) |\n    (this[offset + 2] << 16) |\n    (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] << 24) |\n    (this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    (this[offset + 3])\n}\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n  if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n  if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var mul = 1\n  var i = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nfunction objectWriteUInt16 (buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffff + value + 1\n  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {\n    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>\n      (littleEndian ? i : 1 - i) * 8\n  }\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n  } else {\n    objectWriteUInt16(this, value, offset, true)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 8)\n    this[offset + 1] = (value & 0xff)\n  } else {\n    objectWriteUInt16(this, value, offset, false)\n  }\n  return offset + 2\n}\n\nfunction objectWriteUInt32 (buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffffffff + value + 1\n  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {\n    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff\n  }\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset + 3] = (value >>> 24)\n    this[offset + 2] = (value >>> 16)\n    this[offset + 1] = (value >>> 8)\n    this[offset] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, true)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 24)\n    this[offset + 1] = (value >>> 16)\n    this[offset + 2] = (value >>> 8)\n    this[offset + 3] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, false)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = 0\n  var mul = 1\n  var sub = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  var sub = 0\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n  if (value < 0) value = 0xff + value + 1\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n  } else {\n    objectWriteUInt16(this, value, offset, true)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 8)\n    this[offset + 1] = (value & 0xff)\n  } else {\n    objectWriteUInt16(this, value, offset, false)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n    this[offset + 2] = (value >>> 16)\n    this[offset + 3] = (value >>> 24)\n  } else {\n    objectWriteUInt32(this, value, offset, true)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (value < 0) value = 0xffffffff + value + 1\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 24)\n    this[offset + 1] = (value >>> 16)\n    this[offset + 2] = (value >>> 8)\n    this[offset + 3] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, false)\n  }\n  return offset + 4\n}\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n  if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 23, 4)\n  return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 52, 8)\n  return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n  if (!start) start = 0\n  if (!end && end !== 0) end = this.length\n  if (targetStart >= target.length) targetStart = target.length\n  if (!targetStart) targetStart = 0\n  if (end > 0 && end < start) end = start\n\n  // Copy 0 bytes; we're done\n  if (end === start) return 0\n  if (target.length === 0 || this.length === 0) return 0\n\n  // Fatal error conditions\n  if (targetStart < 0) {\n    throw new RangeError('targetStart out of bounds')\n  }\n  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')\n  if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n  // Are we oob?\n  if (end > this.length) end = this.length\n  if (target.length - targetStart < end - start) {\n    end = target.length - targetStart + start\n  }\n\n  var len = end - start\n  var i\n\n  if (this === target && start < targetStart && targetStart < end) {\n    // descending copy from end\n    for (i = len - 1; i >= 0; --i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {\n    // ascending copy from start\n    for (i = 0; i < len; ++i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else {\n    Uint8Array.prototype.set.call(\n      target,\n      this.subarray(start, start + len),\n      targetStart\n    )\n  }\n\n  return len\n}\n\n// Usage:\n//    buffer.fill(number[, offset[, end]])\n//    buffer.fill(buffer[, offset[, end]])\n//    buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n  // Handle string cases:\n  if (typeof val === 'string') {\n    if (typeof start === 'string') {\n      encoding = start\n      start = 0\n      end = this.length\n    } else if (typeof end === 'string') {\n      encoding = end\n      end = this.length\n    }\n    if (val.length === 1) {\n      var code = val.charCodeAt(0)\n      if (code < 256) {\n        val = code\n      }\n    }\n    if (encoding !== undefined && typeof encoding !== 'string') {\n      throw new TypeError('encoding must be a string')\n    }\n    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n      throw new TypeError('Unknown encoding: ' + encoding)\n    }\n  } else if (typeof val === 'number') {\n    val = val & 255\n  }\n\n  // Invalid ranges are not set to a default, so can range check early.\n  if (start < 0 || this.length < start || this.length < end) {\n    throw new RangeError('Out of range index')\n  }\n\n  if (end <= start) {\n    return this\n  }\n\n  start = start >>> 0\n  end = end === undefined ? this.length : end >>> 0\n\n  if (!val) val = 0\n\n  var i\n  if (typeof val === 'number') {\n    for (i = start; i < end; ++i) {\n      this[i] = val\n    }\n  } else {\n    var bytes = Buffer.isBuffer(val)\n      ? val\n      : utf8ToBytes(new Buffer(val, encoding).toString())\n    var len = bytes.length\n    for (i = 0; i < end - start; ++i) {\n      this[i + start] = bytes[i % len]\n    }\n  }\n\n  return this\n}\n\n// HELPER FUNCTIONS\n// ================\n\nvar INVALID_BASE64_RE = /[^+\\/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n  // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n  str = stringtrim(str).replace(INVALID_BASE64_RE, '')\n  // Node converts strings with length < 2 to ''\n  if (str.length < 2) return ''\n  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n  while (str.length % 4 !== 0) {\n    str = str + '='\n  }\n  return str\n}\n\nfunction stringtrim (str) {\n  if (str.trim) return str.trim()\n  return str.replace(/^\\s+|\\s+$/g, '')\n}\n\nfunction toHex (n) {\n  if (n < 16) return '0' + n.toString(16)\n  return n.toString(16)\n}\n\nfunction utf8ToBytes (string, units) {\n  units = units || Infinity\n  var codePoint\n  var length = string.length\n  var leadSurrogate = null\n  var bytes = []\n\n  for (var i = 0; i < length; ++i) {\n    codePoint = string.charCodeAt(i)\n\n    // is surrogate component\n    if (codePoint > 0xD7FF && codePoint < 0xE000) {\n      // last char was a lead\n      if (!leadSurrogate) {\n        // no lead yet\n        if (codePoint > 0xDBFF) {\n          // unexpected trail\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n          continue\n        } else if (i + 1 === length) {\n          // unpaired lead\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n          continue\n        }\n\n        // valid lead\n        leadSurrogate = codePoint\n\n        continue\n      }\n\n      // 2 leads in a row\n      if (codePoint < 0xDC00) {\n        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n        leadSurrogate = codePoint\n        continue\n      }\n\n      // valid surrogate pair\n      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\n    } else if (leadSurrogate) {\n      // valid bmp char, but last char was a lead\n      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n    }\n\n    leadSurrogate = null\n\n    // encode utf8\n    if (codePoint < 0x80) {\n      if ((units -= 1) < 0) break\n      bytes.push(codePoint)\n    } else if (codePoint < 0x800) {\n      if ((units -= 2) < 0) break\n      bytes.push(\n        codePoint >> 0x6 | 0xC0,\n        codePoint & 0x3F | 0x80\n      )\n    } else if (codePoint < 0x10000) {\n      if ((units -= 3) < 0) break\n      bytes.push(\n        codePoint >> 0xC | 0xE0,\n        codePoint >> 0x6 & 0x3F | 0x80,\n        codePoint & 0x3F | 0x80\n      )\n    } else if (codePoint < 0x110000) {\n      if ((units -= 4) < 0) break\n      bytes.push(\n        codePoint >> 0x12 | 0xF0,\n        codePoint >> 0xC & 0x3F | 0x80,\n        codePoint >> 0x6 & 0x3F | 0x80,\n        codePoint & 0x3F | 0x80\n      )\n    } else {\n      throw new Error('Invalid code point')\n    }\n  }\n\n  return bytes\n}\n\nfunction asciiToBytes (str) {\n  var byteArray = []\n  for (var i = 0; i < str.length; ++i) {\n    // Node's code seems to be doing this and not & 0x7F..\n    byteArray.push(str.charCodeAt(i) & 0xFF)\n  }\n  return byteArray\n}\n\nfunction utf16leToBytes (str, units) {\n  var c, hi, lo\n  var byteArray = []\n  for (var i = 0; i < str.length; ++i) {\n    if ((units -= 2) < 0) break\n\n    c = str.charCodeAt(i)\n    hi = c >> 8\n    lo = c % 256\n    byteArray.push(lo)\n    byteArray.push(hi)\n  }\n\n  return byteArray\n}\n\nfunction base64ToBytes (str) {\n  return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n  for (var i = 0; i < length; ++i) {\n    if ((i + offset >= dst.length) || (i >= src.length)) break\n    dst[i + offset] = src[i]\n  }\n  return i\n}\n\nfunction isnan (val) {\n  return val !== val // eslint-disable-line no-self-compare\n}\n","'use strict'\n\nexports.byteLength = byteLength\nexports.toByteArray = toByteArray\nexports.fromByteArray = fromByteArray\n\nvar lookup = []\nvar revLookup = []\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\n\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\nfor (var i = 0, len = code.length; i < len; ++i) {\n  lookup[i] = code[i]\n  revLookup[code.charCodeAt(i)] = i\n}\n\n// Support decoding URL-safe base64 strings, as Node.js does.\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\nrevLookup['-'.charCodeAt(0)] = 62\nrevLookup['_'.charCodeAt(0)] = 63\n\nfunction getLens (b64) {\n  var len = b64.length\n\n  if (len % 4 > 0) {\n    throw new Error('Invalid string. Length must be a multiple of 4')\n  }\n\n  // Trim off extra bytes after placeholder bytes are found\n  // See: https://github.com/beatgammit/base64-js/issues/42\n  var validLen = b64.indexOf('=')\n  if (validLen === -1) validLen = len\n\n  var placeHoldersLen = validLen === len\n    ? 0\n    : 4 - (validLen % 4)\n\n  return [validLen, placeHoldersLen]\n}\n\n// base64 is 4/3 + up to two characters of the original data\nfunction byteLength (b64) {\n  var lens = getLens(b64)\n  var validLen = lens[0]\n  var placeHoldersLen = lens[1]\n  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction _byteLength (b64, validLen, placeHoldersLen) {\n  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction toByteArray (b64) {\n  var tmp\n  var lens = getLens(b64)\n  var validLen = lens[0]\n  var placeHoldersLen = lens[1]\n\n  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))\n\n  var curByte = 0\n\n  // if there are placeholders, only get up to the last complete 4 chars\n  var len = placeHoldersLen > 0\n    ? validLen - 4\n    : validLen\n\n  var i\n  for (i = 0; i < len; i += 4) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 18) |\n      (revLookup[b64.charCodeAt(i + 1)] << 12) |\n      (revLookup[b64.charCodeAt(i + 2)] << 6) |\n      revLookup[b64.charCodeAt(i + 3)]\n    arr[curByte++] = (tmp >> 16) & 0xFF\n    arr[curByte++] = (tmp >> 8) & 0xFF\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  if (placeHoldersLen === 2) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 2) |\n      (revLookup[b64.charCodeAt(i + 1)] >> 4)\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  if (placeHoldersLen === 1) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 10) |\n      (revLookup[b64.charCodeAt(i + 1)] << 4) |\n      (revLookup[b64.charCodeAt(i + 2)] >> 2)\n    arr[curByte++] = (tmp >> 8) & 0xFF\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  return arr\n}\n\nfunction tripletToBase64 (num) {\n  return lookup[num >> 18 & 0x3F] +\n    lookup[num >> 12 & 0x3F] +\n    lookup[num >> 6 & 0x3F] +\n    lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n  var tmp\n  var output = []\n  for (var i = start; i < end; i += 3) {\n    tmp =\n      ((uint8[i] << 16) & 0xFF0000) +\n      ((uint8[i + 1] << 8) & 0xFF00) +\n      (uint8[i + 2] & 0xFF)\n    output.push(tripletToBase64(tmp))\n  }\n  return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n  var tmp\n  var len = uint8.length\n  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n  var parts = []\n  var maxChunkLength = 16383 // must be multiple of 3\n\n  // go through the array every three bytes, we'll deal with trailing stuff later\n  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n    parts.push(encodeChunk(\n      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)\n    ))\n  }\n\n  // pad the end with zeros, but make sure to not forget the extra bytes\n  if (extraBytes === 1) {\n    tmp = uint8[len - 1]\n    parts.push(\n      lookup[tmp >> 2] +\n      lookup[(tmp << 4) & 0x3F] +\n      '=='\n    )\n  } else if (extraBytes === 2) {\n    tmp = (uint8[len - 2] << 8) + uint8[len - 1]\n    parts.push(\n      lookup[tmp >> 10] +\n      lookup[(tmp >> 4) & 0x3F] +\n      lookup[(tmp << 2) & 0x3F] +\n      '='\n    )\n  }\n\n  return parts.join('')\n}\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n  var e, m\n  var eLen = (nBytes * 8) - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var nBits = -7\n  var i = isLE ? (nBytes - 1) : 0\n  var d = isLE ? -1 : 1\n  var s = buffer[offset + i]\n\n  i += d\n\n  e = s & ((1 << (-nBits)) - 1)\n  s >>= (-nBits)\n  nBits += eLen\n  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n  m = e & ((1 << (-nBits)) - 1)\n  e >>= (-nBits)\n  nBits += mLen\n  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n  if (e === 0) {\n    e = 1 - eBias\n  } else if (e === eMax) {\n    return m ? NaN : ((s ? -1 : 1) * Infinity)\n  } else {\n    m = m + Math.pow(2, mLen)\n    e = e - eBias\n  }\n  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n  var e, m, c\n  var eLen = (nBytes * 8) - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n  var i = isLE ? 0 : (nBytes - 1)\n  var d = isLE ? 1 : -1\n  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n  value = Math.abs(value)\n\n  if (isNaN(value) || value === Infinity) {\n    m = isNaN(value) ? 1 : 0\n    e = eMax\n  } else {\n    e = Math.floor(Math.log(value) / Math.LN2)\n    if (value * (c = Math.pow(2, -e)) < 1) {\n      e--\n      c *= 2\n    }\n    if (e + eBias >= 1) {\n      value += rt / c\n    } else {\n      value += rt * Math.pow(2, 1 - eBias)\n    }\n    if (value * c >= 2) {\n      e++\n      c /= 2\n    }\n\n    if (e + eBias >= eMax) {\n      m = 0\n      e = eMax\n    } else if (e + eBias >= 1) {\n      m = ((value * c) - 1) * Math.pow(2, mLen)\n      e = e + eBias\n    } else {\n      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n      e = 0\n    }\n  }\n\n  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n  e = (e << mLen) | m\n  eLen += mLen\n  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n  buffer[offset + i - d] |= s * 128\n}\n","/**\n * Core SFRA function for run everything everywhere\n * @param {Function || Object} include - stuff to run\n */\nconst processInclude = (include) => {\n    if (typeof include === 'function') {\n        include();\n    } else if (typeof include === 'object') {\n        Object.keys(include).forEach(function (key) {\n            if (typeof include[key] === 'function') {\n                include[key]();\n            }\n        });\n    }\n};\n\n// Enqueues tasks to be executed afterwards\nfunction enqueueTask(task) {\n    window.requestAnimationFrame(task);\n}\n\n/**\n * Parses the html for a modal window\n * @param {string} html - representing the body and footer of the modal window\n *\n * @return {Object} - Object with properties body and footer.\n */\nconst parseHtml = (html, map) => {\n    const el = document.createElement('div');\n    el.innerHTML = html;\n\n    let htmlMap = {};\n    for (var key in map) {\n        if (map.hasOwnProperty(key)) {\n            htmlMap[key] = el.querySelector(map[key]);\n        }\n    }\n\n    return htmlMap;\n};\n\n/**\n * appends params to a url\n * @param {string} url - Original url\n * @param {Object} params - Parameters to append\n * @returns {string} result url with appended parameters\n */\nconst appendToUrl = (url, params) => {\n    var newUrl = url;\n    newUrl +=\n        (newUrl.indexOf('?') !== -1 ? '&' : '?') +\n        Object.keys(params)\n            .map(function (key) {\n                return key + '=' + encodeURIComponent(params[key]);\n            })\n            .join('&');\n\n    return newUrl;\n};\n\nconst lockScroll = () => {\n    $('body, html').css('overflow-y', 'hidden');\n};\n\nconst unlockScroll = () => {\n    $('body, html').css('overflow-y', '');\n};\n\n/**\n * function for force lock scroll when open a modal or a drawer.\n * CAN CREATE SOME ISSUE WITH TOUCH EVENT - CHECK ON REAL DEVICE\n * the event is for prevent scrolling in iOS device\n */\nfunction forceLockScroll() {\n    $('body, html,.page')\n        .css({'overflow-y': 'hidden', 'touch-action': 'none'})\n        .on('touchmove', preventDefault);\n}\n\nfunction forceUnlockScroll() {\n    $('body, html,.page')\n        .css({'overflow-y': '', 'touch-action': ''})\n        .off('touchmove', preventDefault);\n}\n\nfunction preventDefault(e) {\n    e.preventDefault();\n}\n\nconst cookieExists = (name) => {\n    return document.cookie.split(';').filter((item) => {\n        return item.trim().indexOf(`${name}=`) === 0;\n    }).length;\n};\n\nconst createCookie = (name, value = false, days = 0) => {\n    var expires;\n    if (days) {\n        var date = new Date();\n        date.setTime(date.getTime() + days * 24 * 60 * 60 * 1000);\n        expires = '; expires=' + date.toGMTString();\n    } else {\n        expires = '';\n    }\n    document.cookie = name + '=' + value + expires + '; path=/';\n};\n\nconst getCookie = (name) => {\n    var value = '; ' + document.cookie;\n    var parts = value.split('; ' + name + '=');\n    if (parts.length == 2) return parts.pop().split(';').shift();\n    return '';\n};\n\nconst deleteCookie = (name) => {\n    document.cookie = name + '=; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';\n};\n\nconst isTouchDevice = () => {\n    return (\n        'ontouchstart' in window || navigator.maxTouchPoints > 0 || navigator.msMaxTouchPoints > 0\n    );\n};\n\n/**\n * Generic Ajax Call\n * @param {string} url - url for the ajax call\n * @param {string} method - default GET (is possible to use POST,PUT)\n * @param {object} data - use in POST method\n * @param {boolean} hideSpinner - default false, use true to hide the spinner\n * @returns Promise with the response of the ajax call\n */\nfunction genericAjaxCall(url, method = 'GET', data = {}, hideSpinner = false) {\n    if (!url) {\n        console.error('Missing Url in ajax call');\n        return;\n    }\n    if (hideSpinner !== true) {\n        $.spinner().start();\n    }\n    return new Promise((resolve, reject) => {\n        $.ajax({\n            url: url,\n            method: method,\n            data: data,\n            success: function (response) {\n                if (hideSpinner !== true) {\n                    $.spinner().stop();\n                }\n                resolve(response);\n            },\n            error: function (error) {\n                if (hideSpinner !== true) {\n                    $.spinner().stop();\n                }\n                console.error(error);\n                reject(error);\n            },\n        });\n    });\n}\n\nexport {\n    appendToUrl,\n    cookieExists,\n    createCookie,\n    deleteCookie,\n    enqueueTask,\n    forceLockScroll,\n    forceUnlockScroll,\n    genericAjaxCall,\n    getCookie,\n    isTouchDevice,\n    lockScroll,\n    parseHtml,\n    preventDefault,\n    processInclude,\n    unlockScroll,\n};\n","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n","import { fabric } from 'fabric';\n\n/**\n * @function createSvgFromCanvas - create svg from canvas\n * @param {Object} canvasToConvert - fabric canvas object\n * @returns {String} encodeSVG\n */\nfunction createSvgFromCanvas (canvasToConvert) {\n    let svg = canvasToConvert.toSVG().toString().replace(/&(?!amp;)/g, '&amp;').replace(/https:\\/\\//g, 'http://');\n    let encodeSVG = encodeURIComponent(svg);\n    return encodeSVG;\n}\n\n/**\n * @function generateSvgForOTP - generate svg for otp and return svgAllFormat\n * @param {Object} canvasOptions - canvas options to create canvas elements\n * @returns {Object} svgAllFormat\n */\nexport function generateSvgForOTP (canvasOptions) {\n    let svgAllFormat = {};\n    let top = canvasOptions.top;\n    let left = canvasOptions.left;\n    let customizeText = canvasOptions.customizeText;\n    let customizeFont = canvasOptions.customizeFont;\n    let customizeColor = canvasOptions.customizeColor;\n    let imageToLoad = canvasOptions.imageToLoad;\n\n    let newCanvas = new fabric.StaticCanvas('rebuildCanvas', {\n        width: 2000,\n        height: 3000,\n    });\n\n    const canvasRatio = 7.125; // canvas ratio calculated based on the design dimensions of the image (2000/355)\n    let canvasText = new fabric.Textbox(customizeText, {\n        top: top,\n        left: left,\n        originX: 'center',\n        originY: 'center',\n        width: canvasRatio * 48,\n        fontSize: canvasRatio * 10,\n        lineHeight: canvasRatio * 15,\n        fontFamily: customizeFont,\n        textAlign: 'center',\n        fill: customizeColor,\n    });\n\n    let img = $(imageToLoad)[0];\n    let canvasImage = new fabric.Image(img, {\n        top: 0,\n        selectable: false,\n        hasRotatingPoint: true,\n        width: 2000,\n        height: 3000\n    });\n    canvasImage.scaleToWidth(2000);\n\n    let canvasGroup = new fabric.Group([canvasImage, canvasText], {});\n    newCanvas.add(canvasGroup);\n\n    // FULL TEXT SVG\n    svgAllFormat.personalizationFullSVG = createSvgFromCanvas(newCanvas);\n\n    // HALF SIZE SVG\n    let scaleRatio = Math.min(0.5);\n    newCanvas.setDimensions({ width: newCanvas.getWidth() * scaleRatio, height: newCanvas.getHeight() * scaleRatio });\n    newCanvas.setZoom(scaleRatio);\n    svgAllFormat.personalizationSmallSVG = createSvgFromCanvas(newCanvas);\n\n    // ONLY TEXT SVG\n    canvasGroup.remove(canvasImage);\n    newCanvas.clear();\n    newCanvas.add(canvasGroup);\n    let personalizationTextSVG = createSvgFromCanvas(newCanvas);\n    svgAllFormat.personalizationTextSVG = personalizationTextSVG;\n\n    return svgAllFormat;\n}\n","const SELECTORS = {\n    page: '.js-customizePage',\n    personalizationCanvas: '#personalization-canvas',\n    mainChoice: '.js-sectionMainChoice',\n    imgFront: '#img-object-front',\n    imgBack: '#img-object-back',\n    pixelText: '#pixel-text',\n    canvasNode: '.js-customize-canvas',\n    textInput: '.js-input-type1',\n    fontsButtons: '.js-choice-editor .cc-choice-item',\n    colorsButtons: '.js-choice-editor .cc-choice-pattern_item',\n    showOtherSide: '.js-show-other-side',\n    hotspotOne: '.js-customizePage .js-positionChoice-1',\n    hotspotTwo: '.js-customizePage .js-positionChoice-2',\n    stepOne: '.js-customize-step1',\n    stepTwo: '.js-customize-step2',\n    termsBottomDesktop: 'js-termsCondition--bottom-desktop',\n    footer: '.js-customize-footer',\n    zoomButton: '.js-zoom-button',\n    termsAndConditionsModal: '.js-linkModalCustomizeTerms',\n    analyticsCustomizeAction: '.js-analyticsCustomizeAction',\n    pageClose: '.js-customizePage-icon_pageClose',\n    personalizeAddToCart: '.js-personalizeButtonModal',\n};\n\nexport default SELECTORS;\n","const CLASSES = {\n    active: 'active',\n    pageStepOne: 'cc-customizePage--step-one',\n    pageStepTwo: 'cc-customizePage--step-two',\n};\n\nexport default CLASSES;\n","import ProductHelpers, {activatePromoAnimationMessage} from './base';\nimport {newModal, newModalFromString} from '../components/modal';\nimport {initSlotCarousel, initProductTile} from '../productTileComponent/productTile';\nimport {checkCarouselLength} from '../customCarousel';\n\nfunction isPortionOfElementInContainer(el, container) {\n    const rect = el.getBoundingClientRect();\n    const containerRect = container.getBoundingClientRect();\n    // DOMRect { x: 8, y: 8, width: 100, height: 100, top: 8, right: 108, bottom: 108, left: 8 }\n    const windowHeight =\n        (window.innerHeight || document.documentElement.clientHeight) - containerRect.top;\n    // http://stackoverflow.com/questions/325933/determine-whether-two-date-ranges-overlap\n    const vertInView = rect.top <= windowHeight && rect.top + 0.66 * rect.height >= 0;\n    return vertInView;\n}\n\nfunction computeCurrentlyVisibleImage() {}\n\nconst handleDetailsTabs = (clickedTab) => {\n    $('.js-detailsPopup-tabContent, .js-detailsPopup-tabLink').removeClass('cc-currentTab');\n    $(\n        '.js-detailsPopup-tabContent#' +\n            clickedTab +\n            ', .js-detailsPopup-tabLink[data-tab=' +\n            clickedTab +\n            ']'\n    ).addClass('cc-currentTab');\n};\n\nconst openQuickView = (url, modalClass) => {\n    const modal = newModal(false, ['quickview-modal']);\n    $.ajax({\n        url: url,\n        method: 'GET',\n        dataType: 'json',\n        success: (html) => {\n            modal.setContent(html.renderedTemplate);\n            if (Foundation.MediaQuery.atLeast('large')) {\n                $('.product-quickview .carousel-inner').slick({\n                    arrows: true,\n                    dots: false,\n                    slidesToShow: 1,\n                });\n            }\n\n            // QuickView\n            $('.product-quickview .js-carousel-select-color-quickview')\n                .slick({\n                    slidesToShow: 6,\n                    slidesToScroll: 2,\n                    infinite: false,\n                    responsive: [\n                        {\n                            breakpoint: 769,\n                            settings: {\n                                slidesToShow: 10,\n                                slidesToScroll: 2,\n                            },\n                        },\n                        {\n                            breakpoint: 640,\n                            settings: {\n                                slidesToShow: 6,\n                                slidesToScroll: 2,\n                            },\n                        },\n                    ],\n                })\n                .slick('setPosition');\n\n            $('body').trigger('product:crossSellLoaded', true);\n\n            $('.product-quickview .js-carousel-select-size')\n                .slick({\n                    slidesToShow: 1.2,\n                    slidesToScroll: 1,\n                    infinite: false,\n                })\n                .slick('setPosition');\n\n            if (modalClass) {\n                $(modal.modalBox).find('.product-quickview').addClass(modalClass);\n            }\n\n            modal.open();\n            $(modal.modalBox)\n                .find('.close-custom')\n                .on('click', function (e) {\n                    modal.close();\n                    modal.destroy();\n                });\n            $('body').on('product:afterAddToCart', function (data) {\n                modal.close();\n                modal.destroy();\n            });\n        },\n        error: (err) => {\n            console.log('Error:', err);\n        },\n    });\n};\n\nconst setMinHeightPromoPanel = (container) => {\n    var _array = [];\n    $(container)\n        .find('div.promo-message.js-promo-container')\n        .each(function () {\n            _array.push($(this).innerHeight());\n        });\n    var maxHeight = Math.max.apply(Math, _array);\n    $(container)\n        .find('div.promo-message.js-promo-container')\n        .each(function () {\n            $(this).css('min-height', maxHeight);\n        });\n\n    var _array2 = [];\n    $(container)\n        .find('.product-tile__name')\n        .each(function () {\n            _array2.push($(this).innerHeight());\n        });\n    var maxHeightTitle = Math.max.apply(Math, _array2);\n    $(container)\n        .find('.product-tile__name')\n        .each(function () {\n            $(this).css('min-height', maxHeightTitle);\n        });\n};\n\nconst getProductVariationGroup = (product, type) => {\n    if (typeof product === 'string') {\n        return product.trim();\n    }\n\n    if (type === 'size') {\n        return product.id;\n    }\n\n    // size and color have already been selected. In this case, the variation\n    // group is built with the style of the product, 'color' and the selected\n    // color variation\n    let pid = '';\n    if (product.productType === 'variant') {\n        pid = product.id.split(' ')[0].trim();\n    } else if (product.productType === 'variationGroup') {\n        // in this case the user only chose the color, and not the size\n        pid = product.id.split('_')[0].trim();\n    }\n    let selectedVariation;\n\n    for (let k in product.variationAttributes) {\n        const variationAttribute = product.variationAttributes[k];\n        if (variationAttribute.attributeId === 'color') {\n            for (let j in variationAttribute.values) {\n                if (variationAttribute.values[j].selected === true) {\n                    selectedVariation = variationAttribute.values[j].value;\n                    break;\n                }\n            }\n        }\n        // If a size is selected and selectable, retrieve its recommendation instead of variant color's one\n        if (variationAttribute.attributeId === 'size') {\n            for (let j in variationAttribute.values) {\n                if (\n                    variationAttribute.values[j].selected === true &&\n                    variationAttribute.values[j].selectable === true\n                ) {\n                    return product.id;\n                }\n            }\n        }\n    }\n\n    return pid + '_color_' + selectedVariation;\n};\n\nconst crossSellItems = (product, type) => {\n    if (!document.getElementById('crossSellItemsBaseUrl')) {\n        return;\n    }\n    const pid = getProductVariationGroup(product, type);\n    let requestUrl = document.getElementById('crossSellItemsBaseUrl').value;\n    let isSizeChange = type === 'size';\n    const promotionId = $('.marketing-messages.pdp .marketing-budge').data('promotion-id');\n    $.ajax({\n        url: requestUrl,\n        method: 'GET',\n        data: {\n            pid: pid,\n            promotionId: promotionId,\n        },\n        success: (data) => {\n            const $result = $(data);\n\n            const $completePromoData = $result.find('#completePromoProducts');\n            const $completePromoSection = $('.js-completePromo');\n            const $completePromoProducts = $completePromoSection.find('.crossSellContainer');\n            $completePromoProducts.empty();\n            if ($completePromoData.length) {\n                $completePromoProducts.empty().append($completePromoData.html());\n                $completePromoSection\n                    .find('.promo-budge-container')\n                    .empty()\n                    .append($('.marketing-messages.pdp .marketing-budge:first').text().trim());\n                const $completePromoContainer = $result.find('#completePromoContainer');\n                if ($completePromoContainer.length) {\n                    $completePromoSection\n                        .find('.js-completePromo-grid-info-description')\n                        .removeClass('hidden')\n                        .html($completePromoContainer.find('.js-promoDetails-description').html());\n                    $completePromoSection\n                        .find('.js-completePromo-grid-info-budge')\n                        .removeClass('hidden')\n                        .html($completePromoContainer.find('.js-promoDetails-calloutMsg').html());\n                } else {\n                    $completePromoSection.find('.promo-more-info').addClass('hidden');\n                }\n                $completePromoSection.removeClass('hidden');\n                checkCarouselLength('.js-promoCarousel');\n            } else {\n                $completePromoSection.addClass('hidden');\n            }\n\n            const $completeLookData = $result.find('#completeLookProducts');\n            const $completeLookSection = $('.js-completeLook');\n            const $completeLookProducts = $completeLookSection.find('.crossSellContainer');\n            $completeLookProducts.empty();\n            if ($completeLookData.length) {\n                $completeLookProducts.empty().append($completeLookData.html());\n                $completeLookSection.removeClass('hidden');\n                checkCarouselLength('.js-lookCarousel');\n            } else {\n                $completeLookSection.addClass('hidden');\n            }\n\n            if ($completePromoData.length && $completeLookData.length) {\n                $('.recommended-products-pdp').addClass('hidden');\n            } else {\n                $('.recommended-products-pdp').removeClass('hidden');\n            }\n\n            $('body').on(\n                'click',\n                '.js-completePromo .crossSellContainer .js-pdp-link, .js-completeLook .crossSellContainer .js-pdp-link',\n                (evt) => {\n                    // Open QuickView only not mobile\n\n                    evt.preventDefault();\n                    const url = evt.currentTarget.dataset.quickview;\n                    // Completa il tuo look\n                    let modalClass;\n                    if ($(evt.currentTarget).closest('.js-completeLook').length) {\n                        modalClass = 'complete-look-quick-view';\n                    }\n                    openQuickView(url, modalClass);\n\n                    /*\n                else {\n                    if ($(evt.currentTarget).closest('.product').find('.add-to-cart-quick-add').attr('data-size-available') !== 'true') {\n                        evt.preventDefault();\n                        evt.stopPropagation();\n                        $(evt.currentTarget).closest('.product').find('.product-detail-quick-add').find('.js-panel-opener-size-quick-add').trigger('click', { mustAdd: true });\n                    }\n                }\n                */\n                }\n            );\n\n            $('.js-completeLook .product-detail-quick-add .add-to-cart-quick-add').on(\n                'click',\n                (e) => {\n                    if (\n                        $(e.currentTarget).attr('data-size-available') !== 'true' &&\n                        Foundation.MediaQuery.is('large')\n                    ) {\n                        e.preventDefault();\n                        e.stopPropagation();\n                        $(e.currentTarget)\n                            .closest('.product-detail-quick-add')\n                            .find('.js-panel-opener-size-quick-add')\n                            .trigger('click', {mustAdd: true});\n                    } else if (!Foundation.MediaQuery.is('large')) {\n                        e.preventDefault();\n                        e.stopPropagation();\n                        openQuickView(\n                            $(e.currentTarget)\n                                .closest('.product')\n                                .find('.js-pdp-link')\n                                .data('quickview'),\n                            'complete-look-quick-view'\n                        );\n                    }\n                }\n            );\n\n            setTimeout(function () {\n                setMinHeightPromoPanel('.js-completePromo');\n                setMinHeightPromoPanel('.js-completeLook');\n            }, 300);\n            $('body').trigger('product:crossSellLoaded', isSizeChange);\n        },\n        error: () => {\n            $.spinner().stop();\n            $('body').trigger('product:crossSellError');\n        },\n    });\n};\n\nconst openCurtain = () => {\n    $('.overlay-pdp-mobile').show();\n    $('#esw-fab').addClass('ui-eswback');\n};\n\nconst closeCurtain = () => {\n    $('.overlay-pdp-mobile').hide();\n    $('#esw-fab').removeClass('ui-eswback');\n};\n\nfunction closeAllOpenMenus() {\n    if (Foundation.MediaQuery.atLeast('medium')) {\n        return;\n    }\n    // Close open menus\n    $('.js-select-size-for-mobile').addClass('hidden').removeClass('open');\n    $('.js-select-color-for-mobile').addClass('hidden').removeClass('open');\n    $('.js-panel-opener-color').removeClass('on');\n    $('.js-panel-opener-size').removeClass('on');\n    closeCurtain();\n}\n\nfunction removeNulls(el) {\n    var price = el.find('.analytics').data('price');\n    if (\n        !price ||\n        price == null ||\n        price === 'null' ||\n        price === '' ||\n        price === 0 ||\n        price == '0.00'\n    ) {\n        el.css('display', 'none');\n        return true;\n    }\n    return false;\n}\n\nconst updatePrimaryImagesSlide = () => {\n    let height = $('.primary-images .slick-active').outerHeight();\n    $('.primary-images .slick-list').outerHeight(height);\n    $('#miniatureVerticalImg .slide').removeClass('active');\n    let index = $('.primary-images .slick-active').data('index');\n    $(`#miniatureVerticalImg .slide[data-index=\"${index}\"]`).addClass('active');\n};\n\nconst enableImageSlideHeightObservers = () => {\n    let imgNode = $('.primary-images .slick-list .carousel-item:first-child img');\n    if (imgNode.length) {\n        let config = {attributes: true, childList: true, subtree: true};\n        let callback = function (mutationsList, observer) {\n            for (let index = 0; index < mutationsList.length; index++) {\n                let mutation = mutationsList[index];\n                if (\n                    mutation.type === 'attributes' &&\n                    mutation.attributeName === 'class' &&\n                    mutation.target.classList.contains('lazyloaded')\n                ) {\n                    updatePrimaryImagesSlide();\n                }\n            }\n        };\n        let observer = new MutationObserver(callback);\n        observer.observe(imgNode[0], config);\n    }\n    let slickNode = $('.primary-images .slick-track');\n    if (slickNode.length) {\n        let config = {attributes: true, childList: true, subtree: true};\n        let callback = function (mutationsList, observer) {\n            for (let index = 0; index < mutationsList.length; index++) {\n                let mutation = mutationsList[index];\n                if (mutation.type === 'attributes' && mutation.attributeName === 'style') {\n                    updatePrimaryImagesSlide();\n                }\n            }\n        };\n        let observer = new MutationObserver(callback);\n        observer.observe(slickNode[0], config);\n    }\n};\n\nconst destroyPrimaryImagesSlider = () => {\n    if (\n        Foundation.MediaQuery.is('medium') &&\n        $('.product-detail-keeper').length &&\n        !$('.product-quickview.product-detail').length &&\n        $('.primary-images').hasClass('slick-initialized')\n    ) {\n        $('.primary-images')\n            .off('afterChange', updatePrimaryImagesSlide)\n            .off('init', enableImageSlideHeightObservers)\n            .slick('unslick');\n    }\n};\n\nconst initializePrimaryImagesSlider = () => {\n    if (\n        $('.product-detail-keeper').length &&\n        !$('.product-quickview.product-detail').length &&\n        !$('.primary-images').hasClass('slick-initialized')\n    ) {\n        $('.primary-images').slick({\n            arrows: false,\n            dots: true,\n            infinite: false,\n            draggable: true,\n            slidesToShow: 1,\n            slidesToScroll: 1,\n            responsive: [\n                {\n                    breakpoint: 1023,\n                    settings: {\n                        slidesToShow: 1.4,\n                        slidesToScroll: 1,\n                    },\n                },\n                {\n                    breakpoint: 765,\n                    settings: {\n                        slidesToShow: 1.07,\n                        slidesToScroll: 1,\n                    },\n                },\n            ],\n        });\n    }\n\n    const disableAutoScroll = () => {\n        $('.primary-images').slick('slickPause');\n        $('body').off('touchstart', this);\n    };\n    $('body').on('touchstart', disableAutoScroll);\n};\n\nconst updatePrimaryImagesSlider = (primaryImages) => {\n    if (\n        Foundation.MediaQuery.is('medium') &&\n        $('.product-detail-keeper').length &&\n        !$('.product-quickview.product-detail').length\n    ) {\n        initializePrimaryImagesSlider();\n        let carouselItems = $('.primary-images .carousel-item');\n        if (carouselItems.length) {\n            for (let i = primaryImages.length; i < carouselItems.length; i++) {\n                $('.primary-images').slick('slickRemove', primaryImages.length);\n            }\n        }\n    }\n};\n\nclass Product {\n    run() {\n        ProductHelpers.run();\n        // this.updateAttributesAndDetails();\n        this.showSpinner();\n        this.updateAttribute();\n        this.updateAddToCart();\n        this.updateAvailability();\n        // this.sizeChart();\n        this.getCrossSellItems();\n        this.afterUpdateImages();\n        this.recentlyViewedItems();\n        this.buyNowQuichview();\n        this.suggedtedProductsPDP();\n        this.observeCurtainTap();\n        this.removeNullCrossSell();\n        this.pdpCrossSell();\n        this.handleAccordionsInPDP();\n        this.changeAddToBagButton();\n        initializePrimaryImagesSlider();\n    }\n\n    changeAddToBagButton() {\n        $('body').on('click', '.js-add-to-cart', function (e) {\n            var button = $(this);\n\n            $('body').on('product:afterAddToCart', function () {\n                button.addClass('clicked');\n                setTimeout(() => {\n                    button.removeClass('clicked');\n                }, 3000);\n            });\n        });\n    }\n\n    removeNullCrossSell() {\n        $('body').on('product:crossSellLoaded', function (e) {\n            let $container = $('.js-completePromo .crossSellContainer');\n            let index = 0;\n            let items = $container.find('.js-cross-product').length;\n            $container.find('.js-cross-product').each(function () {\n                if (removeNulls($(this))) {\n                    index++;\n                }\n            });\n            if (index == items) {\n                $('.js-completePromo').addClass('hidden');\n            }\n\n            $container = $('.js-completeLook .crossSellContainer');\n            index = 0;\n            items = $container.find('.js-cross-product').length;\n            $container.find('.js-cross-product').each(function () {\n                if (removeNulls($(this))) {\n                    index++;\n                }\n            });\n            if (index == items) {\n                $('.js-completeLook').addClass('hidden');\n            }\n        });\n        $('body').on(\n            'listing:einsteinloadedSuggestedProducts listing:einsteinloaded',\n            function (e) {\n                let $container = $('.js-em__carouselCustom');\n                let index = 0;\n                $container.find('.cc-emCarouselEditProd__item').each(function () {\n                    if (removeNulls($(this))) {\n                        index++;\n                    }\n                });\n                if (index > 0) {\n                    localStorage.setItem('suggestedProductsWithNullPrice', index);\n                }\n                setMinHeightPromoPanel('.recommended-products-pdp');\n            }\n        );\n        $('body').on('listing:einsteinloadedSuggestedProducts', function (e) {\n            let $container = $('.js-em__carouselCustom');\n            let index = 0;\n            $container.find('.cc-emCarouselEditProd__item').each(function () {\n                if (removeNulls($(this))) {\n                    index++;\n                }\n            });\n            if (index > 0) {\n                localStorage.setItem('suggestedProductsWithNullPrice', index);\n            }\n            setMinHeightPromoPanel('.recommended-products-pdp');\n        });\n        if ($('.suggested-products-slider.slick-initialized').length) {\n            $('body').trigger('listing:einsteinloadedSuggestedProducts', {\n                container: '.suggested-products-slider',\n                type: 'suggested-products',\n            });\n        }\n    }\n\n    observeCurtainTap() {\n        $('.overlay-pdp-mobile').on('click', function (e) {\n            if ($(this).css('display') !== 'none' && !Foundation.MediaQuery.atLeast('medium')) {\n                closeAllOpenMenus();\n            }\n        });\n    }\n\n    recentlyViewedItems() {\n        $('body').on('click', '.recentlyviewed .js-pdp-link', (evt) => {\n            if (Foundation.MediaQuery.is('medium')) {\n                evt.preventDefault();\n                const url = evt.currentTarget.dataset.quickview;\n                openQuickView(url);\n\n                // trigger for analytics product detail event\n                const target = $(evt.currentTarget).closest('.product');\n                if (target.length > 0) {\n                    $('body').trigger('product:analyticsProductDetails', target);\n                }\n            }\n        });\n    }\n\n    buyNowQuichview() {\n        $('body').on('click', 'button.add-to-cart-quick-view', (e) => {\n            e.preventDefault();\n            openQuickView($(e.currentTarget).data('url'));\n        });\n    }\n\n    suggedtedProductsPDP() {\n        $('body').on('click', '.pdp-recommendations .js-pdp-link', (e) => {\n            const $buyNowCta = $(e.currentTarget)\n                .closest('.product')\n                .find('.add-to-cart-quick-view');\n            if ($buyNowCta.length) {\n                e.preventDefault();\n                e.stopPropagation();\n                $buyNowCta.trigger('click');\n            }\n        });\n    }\n\n    getCrossSellItems() {\n        $('body').on('product:afterAttributeSelect', (e, data) => {\n            if (data.container.hasClass('product-quickview')) {\n                return;\n            }\n            if (data.type === 'color' || data.type === 'size') {\n                crossSellItems(data.data.product, data.type);\n            }\n        });\n    }\n\n    afterUpdateImages() {\n        $('body').on('product:afterAttributeSelect', (e) => {\n            computeCurrentlyVisibleImage(e);\n        });\n    }\n\n    showSpinner() {\n        $('body').on('product:beforeAddToCart product:beforeAttributeSelect', () => {\n            $.spinner().start();\n        });\n    }\n\n    updateAttribute() {\n        $('body').on('product:afterAttributeSelect', (e, response) => {\n            if ($('.product-detail>.bundle-items').length) {\n                response.container.data('pid', response.data.product.id);\n                response.container.find('.product-id').text(response.data.product.id);\n            } else if ($('.product-set-detail').eq(0)) {\n                response.container.data('pid', response.data.product.id);\n                response.container.find('.product-id').text(response.data.product.id);\n            } else {\n                $('.product-id').text(response.data.product.id);\n                $('.product-detail:not(\".bundle-item\")').data('pid', response.data.product.id);\n            }\n        });\n    }\n\n    updateAddToCart() {\n        $('body').on('product:updateAddToCart', function (e, response) {\n            if (\n                $('.page').data('action') === 'Product-Show' &&\n                !response.product.comingSoon &&\n                !response.product.availability.orderable &&\n                !response.product.availability.available\n            ) {\n                $('button.js-add-to-cart', '#fis-select-size').prop('disabled', true);\n                $('button.js-add-to-cart', '#fis-select-size').data('disabled', true);\n                return;\n            }\n            $('button.js-add-to-cart, button.add-to-cart-global').prop(\n                'disabled',\n                !response.product.available || response.product.comingSoon\n            );\n            $('button.js-add-to-cart, button.add-to-cart-global').data(\n                'disabled',\n                !response.product.readyToOrder\n            );\n        });\n    }\n\n    pdpCrossSell() {\n        $('.js-shopTheLook-button').on('click', (e) => {\n            e.preventDefault();\n            e.stopPropagation();\n            let htmlContent = $('.pdp-buy-look-container').html();\n            const modal = newModalFromString(htmlContent, false, [\n                'cc-pdpCrossSell',\n                'js-pdpCrossSell',\n            ]);\n            $(modal.modalBox).addClass(\n                'rightModalAttribute cc-pdpCrossSell-modalBox rightModalAttribute_sizeLarge'\n            );\n            modal.open();\n            initProductTile();\n\n            $(modal.modalBox).on('click', '.js-pdpCrossSell-close', (e) => {\n                e.preventDefault();\n                modal.close();\n                modal.destroy();\n            });\n            $(modal.modalBox).on('click', '.color-variation', (e) => {\n                e.preventDefault();\n                modal.close();\n                modal.destroy();\n            });\n\n            $('body').trigger('product:buyLookBtnAnalytics', true);\n        });\n\n        $('.pdp-buy-look-container').on('click', (e) => {\n            e.preventDefault();\n            e.stopPropagation();\n            $('.js-shopTheLook-button').removeClass('hidden');\n            $('.embedded-service').removeClass('hide-for-STL');\n            $('.img-wrapper .cell.hide-for-large > .icon-container').css('opacity', '1');\n            $('.pdp-buy-look-container').addClass('hidden');\n        });\n\n        $('.pdp-buy-look-container').on('click', '.cross-sell-item', (e) => {\n            e.preventDefault();\n            e.stopPropagation();\n            openQuickView($(e.currentTarget).data('url'));\n        });\n\n        $('body').on('product:afterAttributeSelect', (e, d) => {\n            if (d.type !== 'color' || d.container.hasClass('product-quickview')) {\n                return;\n            }\n            $('.js-shopTheLook-button').addClass('hidden');\n            $('.pdp-buy-look-container').addClass('hidden');\n            var pdpCrossSell = d.data.product.pdpCrossSell;\n            if (!pdpCrossSell) {\n                return;\n            }\n\n            $('.cross-sell-item').addClass('hidden');\n            pdpCrossSell.forEach((cs, i) => {\n                const $csItem = $(`.cross-sell-item[data-index=\"${i}\"]`);\n                $csItem.data('url', cs.url);\n                $csItem.find('.image').attr('src', cs.image);\n                $csItem.find('.name').text(cs.name);\n                $csItem.removeClass('hidden');\n            });\n            $('.js-shopTheLook-button').removeClass('hidden');\n        });\n    }\n\n    updateAvailability() {}\n\n    handleAccordionsInPDP() {\n        if ($('.js-intProductDetail-details').length > 0) {\n            if (!Foundation.MediaQuery.atLeast('large')) {\n                /* Shipping accordion */\n                if ($('.js-details-accordion_shipping').length > 0) {\n                    var $detailsAccordionShipping = $('.js-details-accordion_shipping');\n                    $('.js-details-shipping-content', $detailsAccordionShipping)\n                        .removeClass('accordion-content-visible')\n                        .addClass('accordion-content');\n                    $('.js-details-title', $detailsAccordionShipping).addClass('accordion-title');\n                }\n                /* Description accordion */\n                if ($('.js-details-accordion_description').length > 0) {\n                    var $detailsAccordionDescription = $('.js-details-accordion_description');\n                    $('.js-details-description-content', $detailsAccordionDescription)\n                        .removeClass('accordion-content-visible')\n                        .addClass('accordion-content');\n                    $('.js-details-title', $detailsAccordionDescription).addClass(\n                        'accordion-title'\n                    );\n                }\n            } else {\n                $('.js-accordionDetails')\n                    .removeClass('accordion-title')\n                    .on('click', function (e) {\n                        const htmlContent = $('.js-detailsPopup').html();\n                        const modal = newModalFromString(htmlContent, false, ['cc-detailsPopup']);\n                        $(modal.modalBox).addClass(\n                            'rightModalAttribute cc-detailsPopup-modalBox rightModalAttribute_sizeMedium'\n                        );\n\n                        handleDetailsTabs($(e.currentTarget).data('tab'));\n\n                        modal.open();\n\n                        if ($('.pdp-size-box').hasClass('size-selected')) {\n                            $('#main-and-care-label').addClass('hidden');\n                        }\n\n                        $('.js-detailsPopup-tabLink').on('click', function (e) {\n                            handleDetailsTabs($(e.currentTarget).data('tab'));\n                        });\n\n                        $(modal.modalBox)\n                            .find('.js-detailsPopup-close')\n                            .on('click', function () {\n                                $(modal.modalBox)\n                                    .addClass('cc-modalClosing')\n                                    .on(\n                                        'transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd',\n                                        function () {\n                                            modal.close();\n                                        }\n                                    );\n                            });\n                    });\n            }\n        }\n    }\n}\n\nconst product = new Product();\nexport default product;\nexport {\n    crossSellItems,\n    computeCurrentlyVisibleImage,\n    activatePromoAnimationMessage,\n    closeAllOpenMenus,\n    initializePrimaryImagesSlider,\n    updatePrimaryImagesSlider,\n    destroyPrimaryImagesSlider,\n};\n","'use strict';\nimport {\n    newModalFromString,\n    newModalFromSelector\n} from '../components/modal';\nimport ProductHelpers from './base';\nimport sizePanel from './sizePanel';\n\nclass SmartGiftHelper {\n    constructor () {\n        this.basketBeforeRemovedProduct = [];\n        this.basketObserverEnabled = false;\n        this.basketAlreadyFetched = false;\n    }\n\n    run () {\n        $('body').on('click', '.js-smart-gift', (e) => {\n            let pid = ProductHelpers.methods.getPidValue($(e.currentTarget));\n            if (!ProductHelpers.isSizeSelected()) {\n                sizePanel.openSizePanel(sizePanel.Types.SMARTGIFT);\n            } else {\n                this.addSmartGift(pid);\n                this.enableAnalyticsBasketObserver();\n            }\n        });\n\n        let analyticsDataButton = {\n            action: '',\n            skus: '',\n            quantity: ''\n        };\n        let basketButtonsSelector = '.sidebar-widget .sidebar-continue-shopping-button,';\n        basketButtonsSelector += '.sidebar-widget .widget-summary-button';\n        $('body').on('click', basketButtonsSelector, (event) => {\n            if (SGBasket) {\n                if ($(event.currentTarget).hasClass('sidebar-continue-shopping-button')) {\n                    analyticsDataButton.action = 'continue_shopping';\n                } else if ($(event.currentTarget).hasClass('widget-summary-button')) {\n                    analyticsDataButton.action = 'prepare_my_gift';\n                }\n                analyticsDataButton.skus = this.getSkus();\n                analyticsDataButton.quantity = this.getSkusQuantity();\n                $('body').trigger('analytics:smartGiftBasketButtons', analyticsDataButton);\n            }\n        });\n\n        $('body').on('click', '.sidebar-widget .SGBasketButton', () => {\n            if (SGBasket) {\n                $('body').trigger('analytics:smartGiftBasketIcon');\n            }\n        });\n\n        $('body').on('click', '.smart-gift-rules-label, .js-smart-gift-rules', () => {\n            $('body').trigger('analytics:smartGiftMoreInfo');\n        });\n    };\n\n    addRecommendedItems(data){\n        var eachSuggestion = $('.box-complete-yourlook .product');\n        let dataSuggestion = [];\n        var suggestionLength = eachSuggestion.length > 3 ? 3 : eachSuggestion.length;\n        for (var i = 0; i < suggestionLength; i++){\n            let suggestionItem = {};\n            let infoSuggestion = eachSuggestion[i].querySelector('.productListingItem');\n            let imgSuggestion = eachSuggestion[i].querySelector('.tile-image');\n            let hrefSuggestion = eachSuggestion[i].querySelector('.product-tile');\n            suggestionItem.skuCode = eachSuggestion[i].dataset.pid.replace('~', '/');\n            suggestionItem.name = imgSuggestion.title;\n            suggestionItem.price = infoSuggestion.dataset.price;\n            suggestionItem.skuUrl = hrefSuggestion.href;\n            suggestionItem.image = imgSuggestion.src || imgSuggestion.dataset.src;\n            dataSuggestion.push(suggestionItem);\n        }\n        data.recommendedItems = dataSuggestion;\n    };\n\n    addSmartGift(pid){\n        let data = {};\n        data.skuCode = pid.replace('~', '/');\n        data.name = $('h1[itemprop=\"name\"]').text();\n        data.price = $('.product.analytics').data('price');\n        data.skuUrl = window.location.href;\n        data.image = $('.still-life-img').data('still-life');\n        let nameEng = $('.product.analytics').data('name');\n        data.nameEng = nameEng;\n\n        this.addRecommendedItems(data);\n\n        SGBasket.addItem(data);\n        console.log(data);\n        $('body').trigger('analytics:addSmartGift', { sku: data.skuCode, name: nameEng });\n    };\n\n    getSkus () {\n        let skus = [];\n        SGBasket.state.basket.forEach((element) => {\n            skus.push(element.skuCode);\n        });\n        return skus;\n    };\n\n    getSkusQuantity () {\n        return SGBasket.state.basket.length;\n    };\n\n    getBasket () {\n        let basket = [];\n        if (SGBasket) {\n            SGBasket.state.basket.forEach((element) => {\n                basket.push(element);\n            });\n            return basket;\n        }\n    };\n\n    setAnalyticsProductIndex () {\n        $('.product-list .sc-bxivhb .product-item-text-rmv').each(function (index) {\n            $(this).attr('data-analytics-product-index', index);\n        });\n    };\n\n    triggerRemoveProduct (removedProduct) {\n        let productUrl = $('.product-detail.product-wrapper').data('variationInfo').replace('PID_PLACEHOLDER', removedProduct.skuCode);\n        let nameEng = '';\n        $.get({\n            url: productUrl,\n            success: data => {\n                if (data.product && data.product.nameEng) {\n                    nameEng = data.product.nameEng;\n                }\n                $('body').trigger('analytics:smartGiftBasketRemoveProduct', {productName: nameEng, sku: removedProduct.skuCode});\n            },\n            error: function () {\n                $.spinner().stop();\n            }\n        });\n    };\n\n    enableAnalyticsBasketObserver() {\n        if (SGBasket && !this.basketObserverEnabled) {\n            this.basketObserverEnabled = true;\n            let targetWidgetNode = $('.SGBasket-widget')[0];\n            if (targetWidgetNode) {\n                let config = { attributes: true, childList: true, subtree: true };\n                let _self = this;\n                let callback = function (mutationsList, observer) {\n                    for (let index = 0; index < mutationsList.length; index++) {\n                        let mutation = mutationsList[index];\n                        if (mutation.type === 'attributes' &&\n                            mutation.target.nodeName === 'DIV' &&\n                            $(mutation.target).hasClass('showOverview') &&\n                            $(mutation.target).hasClass('show') &&\n                            !_self.basketAlreadyFetched) {\n                            _self.basketAlreadyFetched = true;\n                            _self.setAnalyticsProductIndex();\n                            _self.basketBeforeRemovedProduct = _self.getBasket();\n                            const clickedProduct = function (event) {\n                                event.stopImmediatePropagation();\n                                let productIndex = $(this).data('analyticsProductIndex');\n                                let removedProduct = _self.basketBeforeRemovedProduct.splice(productIndex, 1)[0];\n                                _self.triggerRemoveProduct(removedProduct);\n                            };\n                            $('.product-list .product-item-text-rmv').on('click', clickedProduct);\n                        } else if (mutation.type === 'attributes' &&\n                                mutation.target.nodeName === 'DIV' &&\n                                $(mutation.target).hasClass('showOverview') &&\n                                $(mutation.target).hasClass('hide')) {\n                            _self.basketAlreadyFetched = false;\n                        }\n                    }\n                };\n                let observer = new MutationObserver(callback);\n                observer.observe(targetWidgetNode, config);\n            }\n        }\n    };\n}\n\nconst smartGiftHelper = new SmartGiftHelper();\nexport default smartGiftHelper;\n","import { ModalShowHide } from '../components/modal';\n\nclass SizePanel {\n    #mobileSizeModal;\n    Types = {\n        ADDTOCART: 'add_to_cart',\n        ADDTOCART_BUNDLE: 'add_to_cart_bundle',\n        PERSONALIZE: 'personalize',\n        WISHILIST: 'wishlist',\n        SMARTGIFT: 'smartgift'\n    }\n\n    init (idName = '#size-panel-mobile') {\n        this.idName = idName\n        this.#onPanelOpenerClick();\n        this.#onNotifyMeSizeClicked();\n        this.#onCloseSizeModalMobile();\n        this.#mobileSizeModal = new ModalShowHide(this.idName);\n        this.#mobileSizeModal.hide();\n    }\n\n    openSizePanel (operation) {\n        if (Foundation.MediaQuery.atLeast('large')) {\n            $('.js-page-size-box').addClass('cc-sizeBox-isOpen');\n        } else {\n            this.#mobileSizeModal.show();\n        }\n        $(this.idName).data('operation', operation);\n        if (operation === this.Types.ADDTOCART_BUNDLE) {\n            let $sizeElements = $(\"[data-attr='size'] input,[data-attr='size-mobile'] input\");\n            let bundleQuantity = $('.js-add-to-cart-multipack').data('bundle-quantity');\n            $sizeElements.each(function (element){\n                if(parseInt($(this).attr('data-allocation'), 10) < parseInt(bundleQuantity, 10)) {\n                    $(this).closest('label').addClass('cc-no-bundle');\n                }\n            })\n        } else {\n            $('.cc-no-bundle').removeClass('cc-no-bundle');\n        }\n        if(operation === this.Types.WISHILIST) {\n            $('.notifyMe,.wishlistOnly').addClass('select-size-for-wishlist');\n        } else {\n            $('.notifyMe,.wishlistOnly').removeClass('select-size-for-wishlist');\n        }\n    }\n\n    #closeSizePanel () {\n        if (Foundation.MediaQuery.atLeast('large')) {\n            $('.pdp-size-box').removeClass('cc-sizeBox-isOpen');\n        } else {\n            this.#mobileSizeModal.hide();\n        }\n        $('.pdp-size-box .js-sizeBox-openPanel').removeClass('cc-sizeBox-openPanel_error');\n        $('#newsletter-error-msg').hide();\n        $(this.idName).data('operation', '');\n        $('.notifyMe,.wishlistOnly').removeClass('select-size-for-wishlist');\n        $('.cc-no-bundle').removeClass('cc-no-bundle');\n    }\n\n    #onPanelOpenerClick () {\n        $('.pdp-size-box .js-sizeBox-openPanel').on('click', e => {\n            if ($('.pdp-size-box').hasClass('cc-sizeBox-isOpen')) {\n                this.#closeSizePanel();\n            } else {\n                this.openSizePanel();\n            }\n        });\n        $('.js-pdpStickyBar-size-openPanel').on('click', e => {\n            if ($('.js-pdpStickyBar-select').hasClass('cc-sizeBox-isOpen')) {\n                $('.js-pdpStickyBar-select').removeClass('cc-sizeBox-isOpen');\n            } else {\n                $('.js-pdpStickyBar-select').addClass('cc-sizeBox-isOpen');\n            }\n        });\n    }\n\n    afterSizeSelection (data, type) {\n        let operation = $(this.idName).data('operation');\n        this.#closeSizePanel();\n        let stopSpinner = true;\n        let selectedSize = $('[data-attr=\"size\"] input:checked');\n        if (!selectedSize.length) {\n            $('.pdp-size-box').removeClass('size-selected');\n            return stopSpinner;\n        } else {\n            $('#newsletter-error-msg').hide();\n        }\n        if (type !== 'size') {\n            return stopSpinner;\n        }\n        let sizeDisplayValue = selectedSize.closest('label').find('.js-size-button__span').text();\n        $('.pdp-size-box .js-sizeBox-openPanel').attr('aria-invalid', 'false');\n        $('.pdp-size-box .selected-size-value').text(sizeDisplayValue);\n        $('.pdp-size-box').addClass('size-selected');\n        if ($('.js-add-to-cart-multipack').length > 0) {\n            let bundleQuantity = $('.js-add-to-cart-multipack').data('bundle-quantity');\n            if(parseInt($(selectedSize).attr('data-allocation'), 10) < parseInt(bundleQuantity, 10)) {\n                $('.js-add-to-cart-multipack').attr('disabled', true);\n            } else {\n                $('.js-add-to-cart-multipack').removeAttr('disabled');\n            }\n        }\n\n        stopSpinner = false;\n        switch (operation) {\n            case this.Types.ADDTOCART:\n                $('#add-to-cart-cta-pdp').trigger('click');\n                break;\n            case this.Types.ADDTOCART_BUNDLE:\n                $('#add-to-cart-multipack-cta-pdp').trigger('click');\n                break;\n            case this.Types.PERSONALIZE:\n                $('#personalizeButton .persButt').trigger('click');\n                break\n            case this.Types.WISHILIST:\n                $('body').trigger('wishlist:add-pid', {pid: data.product.id});\n                break;\n            case this.Types.SMARTGIFT:\n                $('.add-to-cart-actions .js-smart-gift').trigger('click');\n                $('#smartgiftButton').trigger('click');\n                break;\n            default:\n                stopSpinner = true;\n        }\n        return stopSpinner;\n    }\n\n    #onNotifyMeSizeClicked () {\n        const _self = this;\n        $('.notifyMe,.wishlistOnly').on('click', (e) => {\n            if (!$(e.currentTarget).hasClass('select-size-for-wishlist')) {\n                return;\n            }\n            e.preventDefault();\n            e.stopPropagation();\n            $.spinner().start();\n            const infoURL = $(e.currentTarget).closest('label').find('input').data('url');\n            $.ajax({\n                url: infoURL,\n                type: 'get',\n                dataType: 'json',\n                success: function (data) {\n                    if (data.product.readyToOrder) {\n                        if ($(e.currentTarget).hasClass('wishlistOnly')) {\n                            let sizeDisplayValue = $(e.currentTarget).closest('label').find('.size-list-item-display-value').text();\n                            $('.pdp-size-box .selected-size-value').text(sizeDisplayValue);\n                            $('.pdp-size-box').addClass('size-selected');\n                        }\n                        const pid = encodeURIComponent(data.product.id)\n                        $('body').trigger('wishlist:add-pid', {pid: pid});\n                    } else {\n                        $.spinner().stop();\n                        _self.#closeSizePanel();\n                    }\n                },\n                error: function () {\n                    $.spinner().stop();\n                    _self.#closeSizePanel();\n                }\n            });\n        });\n\n        $('body').on('wishlist:update', () => {\n            $.spinner().stop();\n            _self.#closeSizePanel();\n        });\n    }\n\n    #onCloseSizeModalMobile () {\n        const _self = this;\n        $('body').on('click', '.size-selector-mobile-modal', () => {\n            _self.#closeSizePanel();\n        });\n    }\n}\n\nconst sizePanel = new SizePanel();\nexport default sizePanel;\n","'use strict';\n\n/**\n * Replace the URL query string color during color selection update in PDP.\n * @param {string} needle parameter to detect the key, e.g. \"_COL_\", \"_COLORI_\", etc.\n * @param {string} color new color to be submitted\n */\nconst updateProductDetailUrl = (needle, color) => {\n    // Build url object\n    var urlObject = new URL(window.location.href);\n    var queryString = urlObject.searchParams;\n\n    // Retrieve exact key name to be replaced\n    var qsKeyToUpdate;\n    for (var qsKey of queryString.keys()) {\n        var qsValue = queryString.get(qsKey);\n        if (qsKey.toLowerCase().indexOf(needle) !== -1 && qsValue) {\n            qsKeyToUpdate = qsKey;\n            break;\n        }\n    }\n\n    // Cancel action if key is not found\n    if (!qsKeyToUpdate) {\n        return;\n    }\n\n    // Push new value to querystring key obtained above\n    urlObject.searchParams.set(qsKeyToUpdate, color);\n    // Replace current URL with new\n    window.history.replaceState(null, document.title, urlObject.href);\n};\n\nexport {\n    updateProductDetailUrl\n};\n","'use strict';\n\nvar testEnabled = false;\n\nlet productGenderMap = {\n    1: 'Woman',\n    2: 'Man',\n    3: 'Girl',\n    4: 'Boy',\n    5: 'Unisex',\n    6: 'Baby'\n};\n\nlet brandsMapping = {\n    'CALZEDONIA': 'clz',\n    'INTIMISSIMI': 'int',\n    'TEZENIS': 'tzn',\n    'FALCONERI': 'flc',\n    'SIGNORVINO': 'sgv',\n    'ATELIER_EME': 'eme'\n};\n\nvar ListType = {\n    'listing': {\n        'class': 'category',\n        'value': 'listing',\n        'associatedObject': '.search-results'\n    },\n    'wishlist': {\n        'class': 'wishlist-container',\n        'value': 'wishlist',\n        'associatedObject': '.wishlistItemCards'\n    },\n    'search': {\n        'class': 'search',\n        'value': 'search',\n        'associatedObject': '.search-results'\n    },\n    'completeYourLook': {\n        'class': 'completeYourLook',\n        'value': 'complete_your_look',\n        'associatedObject': '.completeYourLookContainer'\n    },\n    'recentlyViewed': {\n        'class': 'recentlyViewed',\n        'value': 'recently_viewed',\n        'associatedObject': '.recentlyViewedContainer'\n    },\n    'suggestedProducts': {\n        'class': 'suggestedProducts',\n        'value': 'suggested_products',\n        'associatedObject': '.suggestedProductsContainer'\n    },\n    'filteredProducts': {\n        'class': 'filteredProducts',\n        'value': 'filter_applied',\n        'associatedObject': '.filteredProducts'\n    },\n    'bestSellers': {\n        'class': 'bestSellers',\n        'value': 'best_sellers',\n        'associatedObject': '.bestSellers'\n    },\n    'cmBestSellers': {\n        'class': 'cmBestSellers',\n        'value': 'best_sellers',\n        'associatedObject': '.cm-bestsellerCarousel-carouselWrapper .cm-carouselCustom.js-plp-productGrid'\n    },\n    'sortDecreasing': {\n        'class': 'sortDecreasing',\n        'value': 'sorting_decreasing_price',\n        'associatedObject': '.sortDecreasing'\n    },\n    'sortIncreasing': {\n        'class': 'sortIncreasing',\n        'value': 'sorting_increasing_price',\n        'associatedObject': '.sortIncreasing'\n    },\n    'newArrivals': {\n        'class': 'newArrivals',\n        'value': 'new_arrivals',\n        'associatedObject': '.newArrivals'\n    },\n    'cmNewArrivals': {\n        'class': 'cmNewArrivals',\n        'value': 'new_arrivals',\n        'associatedObject': '.cm-productCarousel-cardWrp.cm-carouselCustom'\n    },\n    'completeYourLookMiniCart': {\n        'class': 'completeYourLookMiniCart',\n        'value': 'complete_your_look_minicart',\n        'associatedObject': '.miniCartCrossSellContainer-carousel'\n    },\n    'js-suggestedForYou': {\n        'class': 'js-suggestedForYou',\n        'value': 'suggested_for_you',\n        'associatedObject': '.js-slotCarousel_suggestedProducts-carousel'\n    },\n    'js-completeThePromo': {\n        'class': 'completeThePromo',\n        'value': 'complete_your_look',\n        'associatedObject': '.js-completeThePromoContainer'\n    },\n    'js-youMayAlsoLike': {\n        'class': 'js-youMayAlsoLike',\n        'value': 'you_may_also_like',\n        'associatedObject': '.js-youMayAlsoLikeContainer'\n    }\n};\n\nfunction getProductGender (product) {\n    if (product.sapCategoryCode) {\n        let categoryCode = product.sapCategoryCode;\n        return productGenderMap[parseInt(categoryCode[categoryCode.length - 1])];\n    }\n    return '';\n}\n\nfunction insertParam (key, value) {\n    key = encodeURI(key); value = encodeURI(value);\n\n    var kvp = document.location.search.substr(1).split('&');\n\n    var i = kvp.length; var x; while (i--) {\n        x = kvp[i].split('=');\n\n        if (x[0] === key) {\n            x[1] = value;\n            kvp[i] = x.join('=');\n            break;\n        }\n    }\n\n    if (i < 0) { kvp[kvp.length] = [key, value].join('='); }\n\n    // this will reload the page, it's likely better to store this until finished\n    document.location.search = kvp.join('&');\n}\n\nfunction hasParam (key) {\n    key = encodeURI(key);\n\n    return document.location.search.substr(1).indexOf(key) !== -1;\n}\n\nfunction getSkuCodes (sku) {\n    if (sku.length >= 13) {\n        let style = sku.substring(0, 9).trim();\n        let color = sku.substring(9, 13).trim();\n        let size = sku.substring(13).trim().replace('~', '/');\n        return { id: style, color: color, size: size };\n    } else {\n        let color = sku.split('_')[1];\n        return { id: sku, color: color };\n    }\n}\n\nfunction formatStringForAnalytics (str) {\n    return ('' + str).split(' ').join('_').toLowerCase().replace(/-/g, '_');\n}\n\nfunction formatStringProductPropertyIfExists (product, property, avoidFormatting = false) {\n    if (property in product) {\n        if (property === 'item_sfcc') {\n            product[property] = '' + getFormatSkuForAnalytics(product[property]);\n        } else if (avoidFormatting) {\n            product[property] = '' + product[property];\n        } else {\n            product[property] = formatStringForAnalytics(product[property]);\n        }\n    }\n    return product;\n}\n\n/* function formatStringProductPricePropertyIfExists (product, property, avoidFormatting = false) {\n    if (property in product) {\n        if (avoidFormatting) {\n            product[property] = '' + product[property];\n        } else {\n            product[property] = formatStringForAnalytics(product[property]);\n        }\n        if (product['discount'] && product['discount'] < 0) {\n            product[property] = '0.00';\n            product['discount'] = 0.00;\n        }\n    }\n    return product;\n} */\n\nfunction formatStringProductSalePropertyIfExists (product, property, avoidFormatting = false) {\n    if (property in product) {\n        if (avoidFormatting) {\n            product[property] = '' + product[property];\n        } else {\n            product[property] = formatStringForAnalytics(product[property]);\n        }\n        if (product['discount'] && parseFloat(product['discount'])) {\n            product[property] = 'yes';\n        }\n    }\n    return product;\n}\n\nfunction formatFloatProductPropertyIfExists (product, property) {\n    if (property in product) {\n        product[property] = (product[property] <= 0) ? 0.00 : parseFloat(product[property]);\n    }\n    return product;\n}\n\nfunction formatIntegerForAnalytics (value) {\n    return parseInt(value);\n}\n\nfunction formatIntegerProductPropertyIfExists (product, property) {\n    if (property in product) {\n        product[property] = formatIntegerForAnalytics(product[property]);\n    }\n    return product;\n}\n\nfunction stringOrNotAvailable (s) {\n    return (s !== null && typeof s !== 'undefined' && String(s)) || 'not_available';\n}\n\nfunction numberOrZero (n) {\n    return parseFloat(n) || 0;\n}\n\nfunction getStringAnalyticsValueFromStorage (key) {\n    return stringOrNotAvailable(window.sessionStorage.getItem(key));\n}\n\nfunction getNumberAnalyticsValueFromStorage (key) {\n    return numberOrZero(window.sessionStorage.getItem(key));\n}\n\nfunction getFormatSkuForAnalytics (sku) {\n    let id, color, size, formattedSku;\n    if (sku.toLowerCase().indexOf('color') !== -1) { // variant group\n        id = sku.split('_')[0].trim();\n        color = sku.split('_')[2].trim();\n        formattedSku = id + '_' + color;\n    } else {\n        if (sku.match('[^_]+_[^_]+_[^_]+')) {\n            return sku.toUpperCase();\n        }\n        let skuComponents = getSkuCodes(sku);\n        id = skuComponents.id;\n        color = skuComponents.color;\n        size = skuComponents.size;\n        if (color && size) {\n            formattedSku = id + '_' + color + '_' + size;\n        } else { // master product\n            formattedSku = id;\n        }\n    }\n    return formattedSku.toUpperCase().replace(/_+/g, '_');\n}\n\nmodule.exports = {\n\n    isTestEnabled () {\n        return testEnabled;\n    },\n\n    getAvailableListTypes (listingItemsBaseClass) {\n        let types = [];\n\n        for (let key in ListType) {\n            if (ListType.hasOwnProperty(key)) {\n                if ($(listingItemsBaseClass + '.' + ListType[key].class).length > 0) {\n                    let item = ListType[key];\n                    types.push(item);\n                }\n            }\n        }\n\n        return types;\n    },\n\n    getSkuComponents (sku) {\n        return getSkuCodes(sku);\n    },\n\n    getProductGender (product) {\n        return getProductGender(product);\n    },\n\n    getProductBaseInfo (product) {\n        let id = '';\n        let color = '';\n        let size = '';\n\n        let colorObject = null;\n\n        let promo = 'no_promotion';\n        if ('promotions' in product && product.promotions && product.promotions.length > 0) {\n            promo = product.promotions.map(function (el) { return el.enabled ? el.id : null; }).filter(function (el) { return el !== null; }).join('-');\n        } else if ('appliedPromotions' in product && product.appliedPromotions && product.appliedPromotions.length > 0) {\n            promo = product.appliedPromotions.map(function (el) { return el.name; }).join('-');\n        }\n\n        if (product.productType === 'variant') {\n            let components = getSkuCodes(product.id);\n            id = components.id;\n            color = components.color;\n            size = components.size;\n\n            for (let k in product.variationAttributes) {\n                const variationAttribute = product.variationAttributes[k];\n                if (variationAttribute.attributeId === 'color') {\n                    if ('values' in variationAttribute) {\n                        for (let j in variationAttribute.values) {\n                            if (variationAttribute.values[j].selected === true) {\n                                colorObject = variationAttribute.values[j];\n                                break;\n                            }\n                        }\n                    } else {\n                        colorObject = variationAttribute;\n                    }\n                    break;\n                }\n            }\n        } else if (product.productType === 'variationGroup') {\n            // in this case the user only chose the color, and not the size\n            id = product.id.split('_')[0].trim();\n            color = product.id.split('_')[2].trim();\n\n            let selectedVariation;\n\n            for (let k in product.variationAttributes) {\n                const variationAttribute = product.variationAttributes[k];\n                if (variationAttribute.attributeId === 'color') {\n                    for (let j in variationAttribute.values) {\n                        if (variationAttribute.values[j].selected === true) {\n                            colorObject = variationAttribute.values[j];\n                            break;\n                        }\n                    }\n                }\n                if (selectedVariation !== undefined) {\n                    break;\n                }\n            }\n        }\n\n        return {\n            id: id,\n            color: color,\n            colorObject: colorObject,\n            size: size,\n            promo: promo\n        };\n    },\n\n    formatProductForAnalytics (product) {\n        product = formatStringProductPropertyIfExists(product, 'item_name');\n        product = formatStringProductPropertyIfExists(product, 'item_brand');\n        product = formatStringProductPropertyIfExists(product, 'item_list_name');\n        product = formatStringProductPropertyIfExists(product, 'item_list_id');\n        product = formatStringProductPropertyIfExists(product, 'item_variant', true);\n        product = formatFloatProductPropertyIfExists(product, 'price');\n        product = formatStringProductPropertyIfExists(product, 'item_category');\n        product = formatStringProductPropertyIfExists(product, 'item_category2');\n        product = formatStringProductPropertyIfExists(product, 'item_category3');\n        product = formatStringProductPropertyIfExists(product, 'item_category4');\n        product = formatStringProductPropertyIfExists(product, 'item_category5');\n        product = formatIntegerProductPropertyIfExists(product, 'quantity');\n        product = formatStringProductPropertyIfExists(product, 'size', true);\n        product = formatStringProductSalePropertyIfExists(product, 'item_on_sale');\n        product = formatStringProductPropertyIfExists(product, 'item_availability');\n        product = formatStringProductPropertyIfExists(product, 'coupon');\n        product = formatStringProductPropertyIfExists(product, 'item_color');\n        product = formatStringProductPropertyIfExists(product, 'item_sfcc');\n        product = formatStringProductPropertyIfExists(product, 'item_customization');\n        product = formatStringProductPropertyIfExists(product, 'item_sustainable');\n        product = formatFloatProductPropertyIfExists(product, 'discount');\n        return product;\n    },\n\n    checkPage (str) {\n        return window.location.href.toLowerCase().indexOf(str) !== -1;\n    },\n\n    // Formatting\n    formatString (str) {\n        return formatStringForAnalytics(str);\n    },\n\n    format4DigitNumber (number) {\n        if (number < 0) {\n            return '0000';\n        } else if (number < 10) {\n            return '000' + number;\n        } else if (number < 100) {\n            return '00' + number;\n        } else if (number < 1000) {\n            return '0' + number;\n        }\n        return number.toString();\n    },\n\n    // URL Parameters\n    insertParameter (key, value) {\n        insertParam(key, value);\n    },\n    existsParameter (key) {\n        return hasParam(key);\n    },\n\n    // Push on DataLayer\n    push (pushObject, log = true) {\n        // eslint-disable-next-line\n        dataLayer.push(pushObject);\n\n        if (log && testEnabled) {\n            console.info(pushObject);\n        }\n    },\n\n    log (data, inline = false) {\n        if (!testEnabled) {\n            return;\n        }\n        if (inline) {\n            console.info('Analytics: ' + data);\n        } else {\n            console.info('Analytics: ');\n            console.info(data);\n        }\n    },\n\n    getFormatSku (sku) {\n        return getFormatSkuForAnalytics(sku);\n    },\n\n    formatNameForAnalytics (name) {\n        if (!name) {\n            return '';\n        }\n        let formattedPlus = name.toLowerCase().replace(/[+]/g, '_plus_');\n        let formattedName = formattedPlus.replace(/\\W/g, '_');\n        let analyticsName = formattedName.split('_').filter((el) => { return el; }).join('_');\n        return analyticsName;\n    },\n\n    formatSkus (skus) {\n        let formattedSkus = '';\n        for (let i = 0; i < skus.length; i++) {\n            let formattedSku = getFormatSkuForAnalytics(skus[i]).replace(/\\W/g, '_');\n            if (i === 0) {\n                formattedSkus += formattedSku;\n            } else {\n                formattedSkus += '-' + formattedSku;\n            }\n        }\n        return formattedSkus;\n    },\n\n    getProductNameEngFromPdp () {\n        let nameEng = $('.analytics.product').data('name');\n        return nameEng;\n    },\n\n    getFormatedNewsletterPreferenceBrands (list) {\n        let brandsStr = '';\n        for (let brand of list) {\n            brandsStr += brandsMapping[brand] + '-';\n        }\n\n        brandsStr = brandsStr.substring(0, brandsStr.length - 1);\n\n        return brandsStr;\n    },\n\n    getListId (container, provider) {\n        let list = '';\n        if (container && $(container).parents('.analytics-mini-cart').length > 0) {\n            list = 'minicart';\n        } else if ($(container).parents('.js-site-search-suggestions-products').length > 0) { // Search results\n            list = 'plp';\n        } else if ($('.page[data-action=\"Product-Show\"]').length > 0) {\n            list = 'pdp';\n        } else if ($('.page[data-action=\"Search-Show\"]').length > 0) {\n            list = $('.page.js-page-home-gender').length > 0 ? 'home' : 'plp';\n        } else if ($('.page[data-action=\"Cart-Show\"]').length > 0 || $('.page[data-action=\"Checkout-Begin\"]').length > 0) {\n            list = 'cart';\n        } else if ($('.page[data-action=\"Wishlist-Show\"]').length > 0) {\n            list = 'wishlist';\n        }\n\n        if (list && provider && (list === 'pdp' || list === 'home' || list === 'cart')) {\n            list = `${provider}_${list}`;\n        }\n\n        return list;\n    },\n\n    getProductList () {\n        let items = [];\n        let container = $('.analytics.checkout.checkout-product');\n\n        for (let i = 0; i < container.length; i++) {\n            let obj = container.eq(i).data();\n\n            // Fix values for MEC-30160\n            if (obj.item_list_name === 'not_available') {\n                obj.item_list_name = 'listing'\n            }\n    \n            if (obj.item_list_id === 'not_available') {\n                obj.item_list_id = 'pdp'\n            }\n\n            if (obj.id !== 'PERS_PROD') {\n                obj['quantity'] = obj.quantity;\n                obj['index'] = i;\n                items.push(this.formatProductForAnalytics(obj));\n            }\n        }\n        return items;\n    },\n\n    getGrandTotal () {\n        return $('.analytics-totals').data('grand-total');\n    },\n\n    getAppliedCoupon () {\n        const coupon = [];\n        $('#couponCode.coupon-code-field--applied').val() && coupon.push($('#couponCode.coupon-code-field--applied').val());\n        $('.analytics-shipping-discount').length && coupon.push('shipping_discount');\n        $('.analytics-order-discount').length && coupon.push('order_discount');\n        return coupon.join(',');\n    },\n\n    getUpsellingMessage () {\n        let upsellingMessage = 'no_message';\n        const vals = [];\n        $('.analytics-message').each(function () {\n            if (vals.indexOf($(this).data('analytics-type')) === -1) {\n                vals.push($(this).data('analytics-type'));\n            }\n        });\n        if (vals.length > 0) {\n            upsellingMessage = vals.join('-');\n        }\n        localStorage.setItem('upsellingMessage', upsellingMessage);\n        return upsellingMessage;\n    },\n\n    getBeginCheckoutData (context) {\n        return {\n            upselling_message: this.getUpsellingMessage(),\n            currency: context.helperData.currency,\n            value: this.getGrandTotal(),\n            coupon: this.getAppliedCoupon(),\n            items: this.getProductList()\n        };\n    },\n\n    getTypeOfAccount () {\n        let typeOfAccount = 'only_registration';\n        if ($('.loyalty-flag:checked').length === 1) {\n            typeOfAccount = 'profile_loyalty';\n        }\n        return typeOfAccount;\n    },\n    storeGtmData (data) {\n        if (data && data.item_list_name && data.item_list_id && (data.index || data.index === 0)) {\n            if (data.item_id && data.item_variant) {\n                window.sessionStorage.setItem('GTM_' + data.item_id + '_color_' + data.item_variant, JSON.stringify({'item_list_name': data.item_list_name, 'item_list_id': data.item_list_id, 'index': data.index}));\n            }\n            // Adding values for color change event\n            window.sessionStorage.setItem('GTM_item_list_name', data.item_list_name);\n            window.sessionStorage.setItem('GTM_item_list_id', data.item_list_id);\n            window.sessionStorage.setItem('GTM_index', data.index);\n        }\n    },\n    getGtmData (data) {\n        const GTMData = {};\n        if (data && data.item_id && data.item_variant) {\n            const GTMItem = JSON.parse(window.sessionStorage.getItem('GTM_' + data.item_id + '_color_' + data.item_variant)) || {};\n            GTMData.item_list_name = stringOrNotAvailable(GTMItem.item_list_name);\n            GTMData.item_list_id = stringOrNotAvailable(GTMItem.item_list_id);\n            GTMData.index = numberOrZero(GTMItem.index);\n        } else {\n            GTMData.item_list_name = getStringAnalyticsValueFromStorage('GTM_item_list_name');\n            GTMData.item_list_id = getStringAnalyticsValueFromStorage('GTM_item_list_id');\n            GTMData.index = getNumberAnalyticsValueFromStorage('GTM_index');\n        }\n        return GTMData;\n    },\n    setBonusProductData ($container, index) {\n        $container.data('item_list_name', 'free_product');\n        $container.data('item_list_id', this.getListId());\n        $container.data('index', index);\n        $container.data('discount', $container.data('price'));\n        $container.data('price', 0);\n    }\n};\n","import NotifyHelper from './notify';\nimport SmartGiftHelper from './smartGiftHelper';\nimport { startCarouselTileImageFunction } from './productBox';\nimport { updatePrimaryImagesSlider } from './detail';\nimport sizePanel from './sizePanel';\nimport { addToCartFromListing } from './quickView.js';\nimport { newModalFromString } from '../components/modal';\nimport { runPersonalizationListener } from '../customize';\nimport { updateProductDetailUrl } from 'util/url';\nimport { createCookie } from '../util/common';\nimport { getGtmData } from '../analytics/helpers/helper';\nimport { handleWishlistContainer } from './wishlistHeart.js';\n\nconst isMiniCartOpen = () => {\n    return localStorage.getItem('isMiniCartOpen') === 'true';\n};\n\nfunction isChooseBonusProductModalOpen () {\n    return ($('.js-chooseBonusProductModal').length > 0);\n}\n\nfunction isQuickUpdateFromModal () {\n    return $('.js-quickUpdateModal').length > 0;\n}\n\nconst isMobileDevice = () => {\n    return !Foundation.MediaQuery.atLeast('large');\n};\n/**\n * Move close button inside modal content box\n */\nconst moveModalCloseButton = () => {\n    var close = document.querySelector('.tingle-modal__close');\n    var modalContent = document.querySelector('.tingle-modal-box__content');\n    modalContent.appendChild(close);\n};\n\n/**\n * Retrieves the relevant pid value\n * @param {jquery} $el - DOM container for a given add to cart button\n * @return {string} - value to be used when adding product to cart\n */\nconst getPidValue = ($el) => {\n    let pid;\n\n    if ($('.quickview-modal').hasClass('tingle-modal--visible') && !$('.product-set').length) {\n        pid = $('.quickview-modal').find('.product-quickview').data('pid');\n    } else if ($('.product-set-detail').length || $('.product-set').length) {\n        pid = $($el).closest('.product-detail').find('.product-id').text();\n    } else if ($('.modal-size-show').length) {\n        pid = $('.modal-size-show').find('.js-add-to-cart').data('pid');\n    } else if (isMiniCartOpen()) {\n        pid = $($el).data('pid');\n    } else {\n        pid = $('.product-detail:not(\".bundle-item\")').data('pid');\n    }\n\n    return pid;\n};\n\n/**\n * updates the product view when a product attribute of quickAdd is selected or deselected or when\n *         changing quantity\n * @param {string} selectedValueUrl - the Url for the selected variation value\n * @param {jQuery} $productContainer - DOM element for current product\n * @param {string} type - type of filter selected\n */\nconst attributeSelectQuickAdd = (selectedValueUrl, $productContainer, type = '_', imagesShouldUpdate = true) => {\n    if (selectedValueUrl) {\n        $('body').trigger('product:beforeAttributeSelect', {\n            url: selectedValueUrl,\n            container: $productContainer\n        });\n\n        $.ajax({\n            url: selectedValueUrl,\n            method: 'GET',\n            success: data => {\n                handleVariantResponseQuickAdd(data, $productContainer, imagesShouldUpdate);\n                updateOptions(data.product.options, $productContainer);\n                updateQuantities(data.product.quantities, $productContainer);\n                $productContainer.attr('data-pid', data.product.id);\n                $productContainer.find('.add-to-cart-quick-add').attr('data-pid', data.product.id);\n                $productContainer.find('.add-to-cart-quick-add').attr('data-quantity', data.product.selectedQuantity);\n                if ($productContainer.find('.add-to-cart-quick-add').data('mustAdd') === true) {\n                    $productContainer.find('.add-to-cart-quick-add').trigger('click');\n                } else {\n                    $productContainer.find('.js-panel-opener-size-quick-add').trigger('click');\n                    $.spinner().stop();\n                }\n            },\n            error: () => {\n                $.spinner().stop();\n            }\n        });\n    }\n};\n\nconst activatePromoAnimationMessage = () => {\n    $('.js-pdpPromo').removeClass('hide');\n};\n\nconst reactivatePromoAnimationMessage = (promotionId, pdpCalloutMsgText) => {\n    $('.js-pdpPromo').attr('data-promotion-id', promotionId);\n    $('.js-pdpPromo-message').html(pdpCalloutMsgText);\n    activatePromoAnimationMessage();\n};\n\n/**\n * updates the product view when a product attribute is selected or deselected or when changing quantity\n * @param {string} selectedValueUrl - the Url for the selected variation value\n * @param {jQuery} $productContainer - DOM element for current product\n * @param {string} type - type of filter selected\n * @param {boolean} imagesShouldUpdate - update images on attribute selection\n * @param {boolean} ignoreCTA - add immediately to cart without clicking on CTA\n */\nconst attributeSelect = (selectedValueUrl, $productContainer, type = '_', imagesShouldUpdate = true, ignoreCTA = false) => {\n    if (selectedValueUrl) {\n        // destroyPrimaryImagesSlider();\n        $productContainer.prevObject.analyticsPromotion = false;\n\n        $('body').trigger('product:beforeAttributeSelect', {\n            url: selectedValueUrl,\n            container: $productContainer\n        });\n\n        $.ajax({\n            url: selectedValueUrl,\n            method: 'GET',\n            success: data => {\n                var isSize = data.variation.isSize;\n                var isQuickViewModal = $productContainer.hasClass('product-quickview');\n\n                if (isQuickViewModal && type !== 'color') {\n                    imagesShouldUpdate = false;\n                }\n\n                handleVariantResponse(data, $productContainer, imagesShouldUpdate, type);\n\n                // Update PDP link if we are in QuickView and a color was selected\n                if (type === 'color' && $('.quickview-modal').length) {\n                    let container = $('.quickview-modal').find('.see-product-details-link');\n                    container.attr('href', data.product.url);\n                }\n\n                handleVariationUrlsSelectSizeModal(data.variation.variationUrls);\n                handlePromotionTag(data.product ,$productContainer);\n                handleVariationUrlsSelectNotifyModal(data.product.variationAttributes[1].values);\n                handleVariationComingSoonNotifyModal(data.product.variationAttributes[1].values);\n                handleVariationComingSoon(data.product.comingSoon);\n                handleVariationWishlistModal(data.product.variationAttributes[1].values);\n\n                // here we check if the selected product has the size, if not we put a flag on isToLoad\n                if (isSize == false) {\n                    $('#pidToAdd').attr('isToLoad', 'true');\n                } else {\n                    $('#pidToAdd').attr('isToLoad', 'false');\n                }\n                $('.persButtonPdpPers').attr('disabled', false);\n                $('#custom-page').attr('data-pid', data.product.id);\n                $('.js-personalizeButtonCheckout').removeClass('disabled');\n                $('.js-personalizeButtonCheckout').attr('disabled', false);\n                updateOptions(data.product.options, $productContainer);\n                updateQuantities(data.product.quantities, $productContainer);\n                updateImageSaveForLater(data.product, $productContainer);\n                if ($('.product-detail-keeper').length) {\n                    var pid = getPID(data.product);\n                    try {\n                        $($productContainer).find('.product-set').attr('data-pid', pid);\n                    } catch (e) {\n                    }\n                    $('.product-detail-keeper').attr('data-variant-pid', encodeURIComponent(pid));\n                }\n\n                if (isSize) {\n                    $('body').trigger('product:afterAttributeSelect', {\n                        data: data,\n                        container: $productContainer,\n                        type: type\n                    });\n                }\n\n                if (type === 'color') {\n                    if (data.product.promotions && data.product.promotions.length > 0) {\n                        const promoContainer = $('.js-promo-loyalty-message-pdp-underprice');\n                        const promoMessage = data.product.promotions[0].promoLoyaltyMessage;\n                        if (promoContainer && promoMessage && promoMessage.length) {\n                            promoContainer.html(promoMessage);\n                        } else {\n                            promoContainer.html('');\n                        }\n                    } else {\n                        $('.js-promo-loyalty-message-pdp-underprice').html('');\n                    }\n                }\n\n                const _updateInformation = (product) => {\n                    let selectorPrefix = '';\n                    if (product.variationAttributes[0].onSaleSelected || product.price.saleType) {\n                        selectorPrefix = '.onSaleContainer';\n                    } else {\n                        selectorPrefix = '.notOnSaleContainer';\n                    }\n\n                    $productContainer.find(selectorPrefix + ' .js-discount-msg').addClass('hidden');\n                    $productContainer.find(selectorPrefix + ' .js-promo-msg').addClass('hidden');\n\n                    if (product.price.discountValue) {\n                        $productContainer.prevObject.analyticsPromotion = true;\n                        $productContainer.find(selectorPrefix + ' .js-discount-msg')\n                            .html(`(${product.price.discountValue}%)`)\n                            .removeClass('hidden');\n                        if (product.promotions && product.promotions.length > 0) {\n                            if (product.promotions[0].calloutMsg) {\n                                $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                                    .html(product.promotions[0].calloutMsg)\n                                    .removeClass('hidden');\n                            } else if (product.promotions[1] && product.promotions[1].calloutMsg) {\n                                $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                                    .html(product.promotions[1].calloutMsg)\n                                    .removeClass('hidden');\n                            }\n                        }\n                    } else if (product.promotions && product.promotions.length > 0) {\n                        $productContainer.prevObject.analyticsPromotion = true;\n                        if (product.promotions[0].calloutMsg) {\n                            $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                                .html(product.promotions[0].calloutMsg)\n                                .removeClass('hidden');\n                        } else if (product.promotions[1] && product.promotions[1].calloutMsg) {\n                            $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                                .html(product.promotions[1].calloutMsg)\n                                .removeClass('hidden');\n                        }\n                    }\n                };\n\n                if (type !== 'size') {\n                    _updateInformation(data.product);\n                }\n\n                if ($('.modal-size-show').length) {\n                    $.spinner().stop();\n                    if (type === 'size') {\n                        $('body').trigger('quickBuy:addToCart', data);\n                    }\n                }\n\n                if ($('.js-customizePage').length > 0 && data.totalQuantityPrice) {\n                    $('.js-personalizePrice').text(data.totalQuantityPrice);\n                }\n\n                handleInexistentSizeQuickView(data);\n                handleWishlistContainer(data.product.id);\n            },\n            error: function (err) {\n                if (err.responseJSON.redirectUrl) {\n                    window.location.href = err.responseJSON.redirectUrl;\n                } else {\n                    let current_url = window.location.pathname.split('/');\n                    var localized_error_page = window.location.protocol + '://' + window.location.host;\n                    for (var i = 0; i < current_url.length; i++) {\n                        if (current_url[i] !== 'product') {\n                            localized_error_page += '/' + current_url[i];\n                        } else {\n                            localized_error_page += '/404/';\n                            break;\n                        }\n                    }\n                    console.log('localized_error_page = ' + localized_error_page);\n                    window.location.href = localized_error_page;\n                }\n                $.spinner().stop();\n            }\n        }).then(function (data) {\n            let stopSpinner = sizePanel.afterSizeSelection(data, type);\n            if (stopSpinner) {\n                $.spinner().stop();\n            }\n            if (ignoreCTA) {\n                $('.js-prod-select-size-modal').find('button.js-add-to-cart').trigger('click');\n            }\n            if (type === 'color') {\n                if (data.product.promotions.length === 0) {\n                    $('.js-pdpPromo').addClass('hide');\n                } else if (data.product.promotions[0].id && data.product.promotions[0].id != $('.js-pdpPromo').attr('data-promotion-id')) {\n                    reactivatePromoAnimationMessage(data.product.promotions[0].id, data.product.promotions[0].pdpCalloutMsgText);\n                } else {\n                    $('.js-pdpPromo').removeClass('hide');\n                }\n            }\n        });\n    }\n};\n\n/**\n * Retrieve contextual quantity selector\n * @param {jquery} $el - DOM container for the relevant quantity\n * @return {jquery} - quantity selector DOM container\n */\nconst getQuantitySelector = ($el) => {\n    return $el && $('.set-items').length ?\n        $($el).closest('.product-detail').find('.quantity-select') :\n        $('.quantity-select');\n};\n\n/**\n * Retrieves the value associated with the Quantity pull-down menu\n * @param {jquery} $el - DOM container for the relevant quantity\n * @return {string} - value found in the quantity input\n */\nconst getQuantitySelected = ($el) => {\n    let quantity = 1;\n    if ($el.hasClass('js-add-to-cart-multipack') && $el.data('bundle-quantity')) {\n        quantity = $el.data('bundle-quantity');\n    } else if ($el.closest('.js-complete-your-promo-quick-view').length > 0) {\n        quantity = $el.closest('.wrapper-inner-quick-bottom').find('.js-quick-quantity').val();\n    } else if (getQuantitySelector($el).val()) {\n        quantity = getQuantitySelector($el).val();\n    }\n    return quantity;\n};\n\n/**\n * Process the attribute values for an attribute that has image swatches\n *\n * @param {Object} attr - Attribute\n * @param {string} attr.id - Attribute ID\n * @param {Object[]} attr.values - Array of attribute value objects\n * @param {string} attr.values.value - Attribute coded value\n * @param {string} attr.values.url - URL to de/select an attribute value of the product\n * @param {boolean} attr.values.isSelectable - Flag as to whether an attribute value can be\n *     selected.  If there is no variant that corresponds to a specific combination of attribute\n *     values, an attribute may be disabled in the Product Detail Page\n * @param {jQuery} $productContainer - DOM container for a given product\n */\nconst processSwatchValues = (attr, $productContainer) => {\n    attr.values.forEach(attrValue => {\n        const $attrValue = $productContainer.find(`[data-attr=\"${attr.id}\"] [data-attr-value=\"${attrValue.value}\"]`);\n        const $swatchAnchor = $attrValue.parent();\n\n        if (attrValue.selected) {\n            $productContainer.find('.attribute-label').text(attrValue.id.toLowerCase() + ' - ' + attrValue.displayValue.toLowerCase());\n            if ($('.js-pdpStickyBar-colorWrapper').length > 0) {\n                $('.js-pdpStickyBar-colorWrapper .label-inside').text(attr.displayName + ': ' + attrValue.displayValue.toLowerCase() + ' - ' + attrValue.id.toLowerCase());\n                $('.js-pdpStickyBar-colorWrapper img').attr('src', attrValue.images.swatch[0].url);\n                $('.js-pdpStickyBar-colorWrapper img').attr('alt', attrValue.displayValue.toLowerCase() + ' - ' + attrValue.id.toLowerCase());\n            }\n            if ($attrValue[0]) {\n                $productContainer.find(`[data-opener=\"${attr.id}\"] .attribute-selection`).html($attrValue[0].outerHTML);\n                $attrValue.addClass('selected');\n            }\n        } else {\n            $attrValue.removeClass('selected');\n        }\n\n        if (attrValue.url) {\n            $swatchAnchor.attr('href', attrValue.url);\n        } else {\n            $swatchAnchor.removeAttr('href');\n        }\n\n        // Disable if not selectable\n        $attrValue.removeClass('selectable unselectable soldout');\n        $attrValue.addClass((attrValue.selectable || attrValue.isSoldout) ? 'selectable' : 'unselectable');\n        if (attrValue.isSoldout) {\n            $attrValue.addClass('soldout');\n        }\n    });\n};\n\n/**\n * Process attribute values associated with an attribute that does not have image swatches\n *\n * @param {Object} attr - Attribute\n * @param {string} attr.id - Attribute ID\n * @param {Object[]} attr.values - Array of attribute value objects\n * @param {string} attr.values.value - Attribute coded value\n * @param {string} attr.values.url - URL to de/select an attribute value of the product\n * @param {boolean} attr.values.isSelectable - Flag as to whether an attribute value can be\n *     selected.  If there is no variant that corresponds to a specific combination of attribute\n *     values, an attribute may be disabled in the Product Detail Page\n * @param {jQuery} $productContainer - DOM container for a given product\n */\nconst processNonSwatchValues = (attr, $productContainer, variantType) => {\n    const $attr = `[data-attr=\"${attr.id}\"]`;\n    const $defaultOption = $productContainer.find(`${$attr} .select-${attr.id} option:first`);\n    $defaultOption.attr('value', attr.resetUrl);\n    $productContainer.find(`[data-opener=\"${attr.id}\"] .attribute-selection`).html('');\n\n    $productContainer.find('.js-intProductDetail-size-item').addClass('hide');\n    attr.values.forEach(attrValue => {\n        if ($('.page').data('action') && $('.page').data('action').toLowerCase().indexOf('product-show') > -1 && $('#personalize-page') && !$productContainer.hasClass('js-complete-your-promo-quick-view')) {\n            $productContainer = $('.js-intProductDetail');\n        }\n        const $attrValue = $productContainer.find(`${$attr} [data-attr-value=\"${attrValue.value}\"]`);\n        const $attrValueMobile = $productContainer.find(`.size-panel-mobile-content [data-attr-value=\"${attrValue.value}_mobile\"]`);\n        $attrValue.attr('value', attrValue.url).removeAttr('disabled');\n        $attrValueMobile.attr('value', attrValue.variationUrl);\n        if (!attrValue.selected) {\n            $attrValueMobile.removeAttr('disabled');\n        }\n        $attrValue.attr('disabled', !attrValue.selectable);\n        if (attrValue.isComingSoon && $productContainer.hasClass('product-quickview')) {\n            $attrValue.attr('disabled', attrValue.isComingSoon);\n        }\n\n        if (attrValue.selected && attrValue.selectable && attrValue.id !== 'TU') {\n            $productContainer.find(`[data-opener=\"${attr.id}\"] .attribute-selection`).html(attrValue.displayValue);\n            $productContainer.find('.product-quickview').data('pid', attrValue.sku);\n        }\n\n        if (attrValue.selected && attrValue.selectable) {\n            const selectedSizeSpan = $productContainer.find('.js-selected-size');\n\n            if (selectedSizeSpan.length) {\n                selectedSizeSpan.text(attrValue.displayValue);\n            }\n        }\n\n        if ($attrValue.length > 1) {\n            $attrValue.each((i, el) => {\n                $(el).prop('checked', attrValue.selected && attrValue.selectable);\n            });\n        } else {\n            $attrValue.prop('checked', attrValue.selected && attrValue.selectable);\n        }\n\n        if (variantType !== 'size') {\n            if (!attrValue.selectable || attrValue.isComingSoon) {\n                if ($('#isNotifyActive').val() == 'true') {\n                    $attrValue.siblings().addClass('notifyMe');\n                    $attrValueMobile.siblings().addClass('notifyMe');\n                } else {\n                    $attrValue.siblings().addClass('wishlistOnly');\n                    $attrValueMobile.siblings().addClass('wishlistOnly');\n                }\n            } else {\n                $attrValue.siblings().removeClass('notifyMe wishlistOnly');\n                $attrValueMobile.siblings().removeClass('notifyMe wishlistOnly');\n            }\n            if (attrValue.lowAvailability) {\n                $attrValue.siblings().addClass('low-stock');\n                $attrValueMobile.siblings().addClass('low-stock');\n            } else {\n                $attrValue.siblings().removeClass('low-stock');\n                $attrValueMobile.siblings().removeClass('low-stock');\n            }\n        }\n\n        // Toggle size if disabled or not\n        $attrValue.closest('label').toggleClass('hide', attrValue.disabled);\n        $attrValueMobile.closest('label').toggleClass('hide', attrValue.disabled);\n\n        // Toggle size in stickybar\n        $('.js-pdpStickyBar').find('#' + $attrValue[0].id.replace('/', '\\\\/')).closest('label').toggleClass('hide', attrValue.disabled);\n\n        // Same check on quick view mobile\n        $attrValue.closest('.label-wrapper').toggleClass('hide', attrValue.disabled);\n\n        // Toggle selectable size on cart quickview\n        if ($('.quickview-modal').length) {\n            $attrValue.closest('.boolean-field').toggleClass('cc-cartQuickView_selectedSize', attrValue.selected);\n        }\n    });\n\n    // Update also size selection modal\n    const $sizeSelectorContainer = $('#fis-select-size');\n    attr.values.forEach(attrValue => {\n        const $attrValue = $sizeSelectorContainer.find(`[data-attr-value=\"${attrValue.value}\"]`);\n        $attrValue.attr('disabled', !attrValue.selectable);\n        if (attrValue.isComingSoon && $productContainer.hasClass('product-quickview')) {\n            $attrValue.attr('disabled', attrValue.isComingSoon);\n        }\n\n        if ($('#isNotifyActive').val() == 'true') {\n            if (!attrValue.selectable || attrValue.isComingSoon) {\n                $attrValue.addClass('notifyMe notifyPopup');\n                $attrValue.find('.notifyIcon').removeClass('hide');\n            } else {\n                $attrValue.removeClass('notifyMe notifyPopup');\n                $attrValue.find('.notifyIcon').addClass('hide');\n            }\n        } else {\n            if (!attrValue.selectable) {\n                $attrValue.addClass('wishlistOnly');\n            } else {\n                $attrValue.removeClass('wishlistOnly');\n            }\n        }\n\n        // Toggle size if disabled or not\n        $attrValue.parent('li').toggleClass('hide', attrValue.disabled);\n\n        // TODO: improve check. Force size selection of quick add on PDP mobile\n        if (!Foundation.MediaQuery.atLeast('large') && $productContainer.closest('.product-quickview').length) {\n            $productContainer.find(`.mobile-attributes-container input[id=\"${attrValue.value}\"]`).prop('checked', attrValue.selected && attrValue.selectable);\n        }\n    });\n};\n\n/**\n * Routes the handling of attribute processing depending on whether the attribute has image\n *     swatches or not\n *\n * @param {Object} attrs - Attribute\n * @param {string} attr.id - Attribute ID\n * @param {string} variantType - Size or Color selection\n * @param {jQuery} $productContainer - DOM element for a given product\n */\nconst updateAttrs = (attrs, $productContainer, variantType) => {\n    // Currently, the only attribute type that has image swatches is Color.\n    const attrsWithSwatches = ['color'];\n\n    if ($('.js-personalizeButtonModal').attr('data-personalized') === 'true') {\n        $productContainer = $('.fis-select-size');\n    }\n\n    attrs.forEach(attr => {\n        if (attrsWithSwatches.indexOf(attr.attributeId) > -1) {\n            processSwatchValues(attr, $productContainer);\n        } else {\n            processNonSwatchValues(attr, $productContainer, variantType);\n        }\n    });\n};\n\nconst updateScanTrustLink = (attr, $productContainer) => {\n    let $productAuthenticity = $productContainer.find('.cc-details-authenticity-paragraph');\n    if ($productAuthenticity.length > 0) {\n        $productAuthenticity.find('.js-update-scantrustUrl').attr('href', attr.scanTrustUrlWithParams);\n    } \n}\n\n/**\n * Updates the availability status in the Product Detail Page\n *\n * @param {Object} response - Ajax response object after an\n *                            attribute value has been [de]selected\n * @param {jQuery} $productContainer - DOM element for a given product\n */\nconst updateAvailability = (response, $productContainer) => {\n    let availabilityValue = '';\n    let availabilityMessages = response.product.availability.messages;\n    if (!response.product.readyToOrder) {\n        availabilityValue = `<div>${response.resources.info_selectforstock}</div>`;\n    } else if (response.product.availability.orderable) {\n        availabilityMessages.forEach(message => {\n            availabilityValue += `<div>${message}</div>`;\n        });\n    }\n\n    if ($('.js-personalizeButtonModal').length > 0) {\n        $productContainer = $('.tingle-modal-box__content');\n    }\n\n    $('.js-soldOut-message').addClass('hidden');\n    if (!response.product.available || response.product.comingSoon || response.product.isSizeInexistent) {\n        $('.js-soldOut-message').removeClass('hidden');\n        $('.js-selected-size:not(.js-selected-size-not-available)').text('-');\n    }\n\n    $($productContainer).trigger('product:updateAvailability', {\n        product: response.product,\n        $productContainer: $productContainer,\n        message: availabilityValue,\n        resources: response.resources\n    });\n\n    if ($productContainer.hasClass('js-intProductDetail')) {\n        if (response.product.isSoldout === true) {\n            $productContainer.addClass('cc-isSoldOut js-isSoldOut');\n        } else {\n            $productContainer.removeClass('cc-isSoldOut js-isSoldOut');\n        }\n    }\n};\n\n/**\n * Generates html for quick add form\n *\n * @param {string} pid - pid used to get variation\n * @param {string} url - url of the Controller\n * @return Compiled HTML\n */\nconst showQuickAddItems = (pid, url) => {\n    if ($('.js-modal-quick-add-size-quantity').attr('data-pid') === pid) {\n        $('.js-modal-quick-add-size-quantity').removeClass('hidden');\n        return;\n    }\n    $('.select-size-quick-add-container').empty();\n    $.spinner().start();\n    $.ajax({\n        url: url,\n        method: 'GET',\n        data: {\n            pid: pid\n        },\n        success: function (data) {\n            $('.select-size-quick-add-container[data-pid=\"' + pid + '\"]').html(data);\n            const $productContainer = $('.select-size-quick-add-container[data-pid=\"' + pid + '\"]').closest('.product-detail-quick-add');\n            $productContainer.find('.add-to-cart-quick-add').attr('data-quantity', 1);\n            var selectedValue = $productContainer.find('.add-to-cart-quick-add').attr('data-size-selected');\n            if (selectedValue) {\n                $productContainer.find('[data-attr-id=\"' + selectedValue + '\"]').attr('checked', true);\n                $productContainer.find('.add-to-cart-quick-add').attr('data-size-available', true);\n            } else {\n                $productContainer.find('.add-to-cart-quick-add').attr('data-size-available', false);\n                $productContainer.find('.size-selected').empty();\n            }\n            $.spinner().stop();\n        },\n        error: function () {\n            $.spinner().stop();\n        }\n    });\n};\n\n/**\n * @typedef UpdatedOptionValue\n * @type Object\n * @property {string} id - Option value ID for look up\n * @property {string} url - Updated option value selection URL\n */\n\n/**\n * @typedef OptionSelectionResponse\n * @type Object\n * @property {string} priceHtml - Updated price HTML code\n * @property {Object} options - Updated Options\n * @property {string} options.id - Option ID\n * @property {UpdatedOptionValue[]} options.values - Option values\n */\n\n/**\n * Updates DOM using post-option selection Ajax response\n *\n * @param {OptionSelectionResponse} options - Ajax response options from selecting a product option\n * @param {jQuery} $productContainer - DOM element for current product\n */\nconst updateOptions = (options, $productContainer) => {\n    options.forEach(option => {\n        const $optionEl = $productContainer.find(`.product-option[data-option-id*=\"${option.id}\"]`);\n        option.values.forEach(value => {\n            const valueEl = $optionEl.find(`option[data-value-id*=\"${value.id}\"]`);\n            valueEl.val(value.url);\n        });\n\n        option.values.forEach(value => {\n            const valueEl = $optionEl.find(`input[id=\"${value.id}\"]`);\n            valueEl.data('href', value.url);\n            valueEl.attr('href', value.url);\n        });\n    });\n};\n\nconst updateColorFamily = (product, $productContainer) => {\n    $productContainer.find('.family-color').text(product.colorFamily.toLowerCase() + ' - ');\n\n    for (let attr of product.variationAttributes) {\n        if (attr.attributeId === 'color') {\n            if (attr.onSaleSelected) {\n                $productContainer.find('.product-color-sales.on-sale').removeClass('hidden');\n                $productContainer.find('.product-color-sales.not-on-sale').addClass('hidden');\n            } else {\n                $productContainer.find('.product-color-sales.on-sale').addClass('hidden');\n                $productContainer.find('.product-color-sales.not-on-sale').removeClass('hidden');\n            }\n        }\n    }\n};\n\nconst updatePrices = (product, $productContainer, resources) => {\n    if (!product.variationAttributes ||\n        !product.variationAttributes[0] ||\n        product.variationAttributes[0].attributeId !== 'color') {\n        return;\n    }\n    let selectorPrefix = '';\n    if (product.variationAttributes[0].onSaleSelected || product.price.discountValue) {\n        selectorPrefix = '.onSaleContainer';\n    } else {\n        selectorPrefix = '.notOnSaleContainer';\n    }\n    const priceSelector = selectorPrefix + '.prices .price';\n    const priceInfoSelector = ':not(.js-omnibusLabel-wrapper) > .cc-priceOmnibusLabel .price-info';\n    const $oldPriceInfoSelector = $(':not(.js-omnibusLabel-wrapper) > .cc-priceOmnibusLabel .js-oldPriceInfo');\n    const $regularPriceInfoDiscountSelector = $('.js-priceInfo-discountValue');\n    const $oldPriceInfoDiscountSelector = $('.js-oldPriceInfo-discountValue');\n    const $pricePercentage = $('.js-pricePercentage');\n    const $priceSelector = $(priceSelector, $productContainer).length ?\n        $(priceSelector, $productContainer) :\n        $(priceSelector);\n    const $priceInfoSelector = $(priceInfoSelector, $productContainer).length ?\n        $(priceInfoSelector, $productContainer) :\n        $(priceInfoSelector);\n    const priceInfoInSaleContainerSelector = '.cc-intProductDetail-colors .cc-priceOmnibusLabel .price-info';\n    const $priceInfoInSaleContainerSelector = $(priceInfoInSaleContainerSelector, $productContainer);\n    const priceInfoInSaleContainerSelector2 = '.cc-intProductDetail-colors .cc-priceOmnibusLabel .js-oldPriceInfo';\n    const $priceInfoInSaleContainerSelector2 = $(priceInfoInSaleContainerSelector2, $productContainer);\n    const $omnibusPricelForSpecificCountries = $('.js-intProductDetail-attributes-wrapper .js-priceOmnibusLabel .price-info');\n    window.onSalesInfoPrice = $priceInfoInSaleContainerSelector.text();\n    $priceSelector.replaceWith(product.price.html);\n    const currentCountryOmnibus = $oldPriceInfoSelector.closest('.js-omnibusStack').data('currentcountry');\n    const isRegularOmnibusCountry = $oldPriceInfoSelector.closest('.js-omnibusStack').data('omnibuscountry');\n    if (product.price.sales.formattedPriceInfo) {\n        $priceInfoSelector.parent().show();\n        $priceInfoSelector.html(product.price.sales.formattedPriceInfo);\n        const isCountryWithTooltip = currentCountryOmnibus === 'IT' || currentCountryOmnibus === 'ES' || currentCountryOmnibus === 'SI';\n        if (isCountryWithTooltip && resources.tooltip_omnibus && $('i.omnibus-tooltip').length === 0) {\n            $('.product-main-price.onSaleContainer .price').append('<i class=\"info-icon omnibus-tooltip\"><span class=\"icon-info-gray\">i</span><div class=\"tooltip\"><p class=\"price-info-tooltip\">' + resources.tooltip_omnibus + '</p><div class=\"pos-relative\"><div class=\"tooltip-tip\"></div></div></div></i>');\n        }\n        if (isRegularOmnibusCountry) {\n            $oldPriceInfoSelector.parent().show();\n            $oldPriceInfoDiscountSelector.html(product.price.sales.oldPriceOmnibus.priceInfoDiscountValue + '%');\n            $oldPriceInfoDiscountSelector.show();\n        }\n        $oldPriceInfoSelector.html(product.price.list.formatted);\n        $regularPriceInfoDiscountSelector.html(product.price.discountValue + '%');\n        $priceInfoInSaleContainerSelector.parent().addClass('hidden');\n        $priceInfoInSaleContainerSelector2.parent().addClass('hidden');\n        $omnibusPricelForSpecificCountries.parent().addClass('hidden');\n        window.onSalesInfoPrice = product.price.sales.formattedPriceInfo;\n        $priceInfoInSaleContainerSelector2.html(product.price.sales.oldPriceOmnibus.price);\n        $pricePercentage.hide();\n    } else {\n        $priceInfoSelector.parent().hide();\n        $priceInfoSelector.html('');\n        if (window.onSalesInfoPrice) {\n            if (currentCountryOmnibus === 'IT' || currentCountryOmnibus === 'ES' || currentCountryOmnibus === 'SI') {\n                $omnibusPricelForSpecificCountries.parent().removeClass('hidden');\n                $omnibusPricelForSpecificCountries.html(window.onSalesInfoPrice);\n            } else if (isRegularOmnibusCountry) {\n                $priceInfoInSaleContainerSelector.parent().removeClass('hidden');\n                $priceInfoInSaleContainerSelector.html(window.onSalesInfoPrice);\n                $priceInfoInSaleContainerSelector2.parent().removeClass('hidden');\n            } else {\n                $priceInfoInSaleContainerSelector.parent().removeClass('hidden');\n                $priceInfoInSaleContainerSelector.html(window.onSalesInfoPrice);\n            }\n        }\n        $oldPriceInfoSelector.parent().hide();\n        $oldPriceInfoSelector.html('');\n        if (product.price.discountValue) {\n            $pricePercentage.show();\n        }\n    }\n\n    if (product.doubleCurrency && product.doubleCurrency.html) {\n        const $doubleCurrencyContainer = $('#descriptionSidebar  .js-priceSecondCurrency', $productContainer);\n        const innerContent = $(product.doubleCurrency.html).html();\n        $doubleCurrencyContainer.html(innerContent);\n    }\n\n    $productContainer.find(selectorPrefix + ' .js-discount-msg').addClass('hidden');\n    $productContainer.find(selectorPrefix + ' .js-promo-msg').addClass('hidden');\n    if (product.price.discountValue) {\n        $productContainer.find(selectorPrefix + ' .js-discount-msg')\n            .html(`(${product.price.discountValue}%)`)\n            .removeClass('hidden');\n        if (product.promotions && product.promotions.length > 0) {\n            if (product.promotions[0].calloutMsg) {\n                $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                    .html(product.promotions[0].calloutMsg)\n                    .removeClass('hidden');\n            } else if (product.promotions[1] && product.promotions[1].calloutMsg) {\n                $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                    .html(product.promotions[1].calloutMsg)\n                    .removeClass('hidden');\n            }\n        }\n    } else if (product.promotions && product.promotions.length > 0) {\n        if (product.promotions[0].calloutMsg) {\n            $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                .html(product.promotions[0].calloutMsg)\n                .removeClass('hidden');\n        } else if (product.promotions[1] && product.promotions[1].calloutMsg) {\n            $productContainer.find(selectorPrefix + ' .js-promo-msg')\n                .html(product.promotions[1].calloutMsg)\n                .removeClass('hidden');\n        }\n    }\n\n    $productContainer.find(selectorPrefix + ' .js-loyalty').addClass('hidden');\n    $productContainer.find(selectorPrefix + ' .js-loyaltysale').addClass('hidden');\n    if (product.price.saleType) {\n        let saleType = product.price.saleType;\n        if (saleType === 'loyalty1' || saleType === 'loyalty2' || saleType === 'loyalty3' || saleType === 'loyalty4') {\n            saleType = 'loyalty';\n        } else if (saleType === 'loyaltysale1' || saleType === 'loyaltysale2' || saleType === 'loyaltysale3' || saleType === 'loyaltysale4') {\n            saleType = 'loyaltysale';\n        }\n        $productContainer.find(selectorPrefix + ' .js-' + saleType).removeClass('hidden');\n    }\n\n    if (product.comingSoon) {\n        $productContainer.find('.comingSoonBox').removeClass('hide');\n        $productContainer.find('.comingSoonLabel-pdp').removeClass('hidden');\n        $productContainer.find(selectorPrefix + ' .js-new-msg').addClass('hidden');\n        $productContainer.find(selectorPrefix + ' .js-green-msg').addClass('hidden');\n        // $productContainer.find(selectorPrefix + '.js-promo-msg').addClass('hidden');\n    } else {\n        $productContainer.find('.comingSoonBox').addClass('hide');\n        $productContainer.find('.comingSoonLabel-pdp').addClass('hidden');\n        $productContainer.find(selectorPrefix + ' .js-new-msg').addClass('hidden');\n        $productContainer.find(selectorPrefix + ' .js-green-msg').addClass('hidden');\n        if (product.New) {\n            $productContainer.find(selectorPrefix + ' .js-new-msg').removeClass('hidden');\n        }\n        if (product.isGreen) {\n            $productContainer.find(selectorPrefix + ' .js-new-msg').addClass('hidden');\n            $productContainer.find(selectorPrefix + ' .js-green-msg').removeClass('hidden');\n        }\n        // $productContainer.find(selectorPrefix + '.js-promo-msg').removeClass('hidden');\n    }\n};\n\n/**\n * Parses JSON from Ajax call made whenever an attribute value is [de]selected\n * @param {Object} response - response from Ajax call\n * @param {Object} response.product - Product object\n * @param {string} response.product.id - Product ID\n * @param {Object[]} response.product.variationAttributes - Product attributes\n * @param {Object[]} response.product.images - Product images\n * @param {boolean} response.product.hasRequiredAttrsSelected - Flag as to whether all required\n *     attributes have been selected.  Used partially to\n *     determine whether the Add to Cart button can be enabled\n * @param {jQuery} $productContainer - DOM element for a given product.\n */\nconst handleVariantResponseQuickAdd = (response, $productContainer, imagesShouldUpdate = true) => {\n    if (response.product.variationAttributes) {\n        updateAttrs(response.product.variationAttributes, $productContainer);\n    }\n\n    updateAvailability(response, $productContainer);\n\n    $('body').trigger('product:updateAddToCartQuickAdd', {\n        product: response.product,\n        $productContainer: $productContainer\n    }).trigger('product:statusUpdate', response.product);\n};\n\nconst updateImageSaveForLater = (product, $productContainer) => {\n    $productContainer.find('.js-product-image-saveForLater').attr('src', product.images.small[0].url);\n    $productContainer.find('.js-product-image-saveForLater').attr('alt', product.images.small[0].url);\n    $productContainer.find('.js-product-image-saveForLater').attr('title', product.images.small[0].title);\n};\n\n/**\n * Parses JSON from Ajax call made whenever an attribute value is [de]selected\n * @param {Object} response - response from Ajax call\n * @param {Object} response.product - Product object\n * @param {string} response.product.id - Product ID\n * @param {Object[]} response.product.variationAttributes - Product attributes\n * @param {Object[]} response.product.images - Product images\n * @param {boolean} response.product.hasRequiredAttrsSelected - Flag as to whether all required\n *     attributes have been selected.  Used partially to\n *     determine whether the Add to Cart button can be enabled\n * @param {jQuery} $productContainer - DOM element for a given product.\n */\nconst handleVariantResponse = (response, $productContainer, imagesShouldUpdate = true, variantType) => {\n    if (response.product.variationAttributes) {\n        updateAttrs(response.product.variationAttributes, $productContainer, variantType);\n        updateColorFamily(response.product, $productContainer);\n        updateScanTrustLink(response, $productContainer);\n    }\n    const $container = $('.js-composition-info');\n\n    if (response.product.partTypes) {\n        $container.empty();\n        const html = `<div class=\"comp-material\">`;\n        $container.append(html);\n\n        for (var k = 0; k < response.product.partTypes.length; k++) {\n            if (k == 0) {\n                var type = `${response.product.partTypes[k].type}: `;\n                $container.append(type);\n            }\n            if (k < response.product.partTypes.length - 1) {\n                if (response.product.partTypes[k].type == response.product.partTypes[k + 1].type) {\n                    var comp = `${response.product.partTypes[k].percentage} % ${response.product.partTypes[k].material}, `;\n                    $container.append(comp);\n                } else {\n                    var comp = `${response.product.partTypes[k].percentage} % ${response.product.partTypes[k].material}`;\n                    var type = `</br>${response.product.partTypes[k + 1].type}: `;\n\n                    $container.append(comp);\n                    $container.append(type);\n                }\n            } else {\n                var comp = `${response.product.partTypes[k].percentage} % ${response.product.partTypes[k].material} `;\n                $container.append(comp);\n            }\n        }\n        const endTag = `</div>`;\n        $container.append(endTag);\n    } else if (response.product.mainComposition) {\n        $container.empty();\n        const html = `<div class=\"comp-material\">`;\n        $container.append(html);\n\n        for (var k = 0; k < response.product.mainComposition.length; k++) {\n            if (k == response.product.mainComposition.length - 1) {\n                var comp = `${response.product.mainComposition[k].percentage} % ${response.product.mainComposition[k].material} `;\n            } else {\n                var comp = `${response.product.mainComposition[k].percentage} % ${response.product.mainComposition[k].material}, `;\n            }\n\n            $container.append(comp);\n        }\n        const endTag = `</div>`;\n        $container.append(endTag);\n    }\n\n    // Update primary images\n    if (imagesShouldUpdate) {\n        const primaryImageUrls = response.product.images;\n        if ($productContainer.hasClass('product-quickview:not(.product-quickview--get-product)')) {\n            if ($productContainer.find('.carousel-inner').hasClass('slick-initialized')) {\n                $productContainer.find('.carousel-inner').slick('destroy');\n            }\n            $productContainer.find('.carousel-inner').empty();\n            $productContainer.find('.product-link-carousel').attr('href', response.product.selectedProductUrl);\n\n            primaryImageUrls.large.forEach((imageUrl, idx) => {\n                let $carouselInner = $($('#outer').html());\n                $productContainer.find('.carousel-inner').append($carouselInner);\n\n                let $imgContainer = $carouselInner.find('img');\n                $imgContainer.data('index', idx);\n                $imgContainer.attr('id', null);\n                $imgContainer.attr('src', imageUrl.url).removeClass('hidden');\n            });\n\n            if (Foundation.MediaQuery.atLeast('large')) {\n                $productContainer.find('.carousel-inner').slick({\n                    slidesToShow: 1,\n                    slidesToScroll: 1,\n                    dots: false\n                });\n            }\n        } else if ($productContainer.hasClass('product-quickview--get-product')) {\n            if ($productContainer.find('.carousel-inner').hasClass('slick-initialized')) {\n                $productContainer.find('.carousel-inner').slick('destroy');\n            }\n            $productContainer.find('.carousel-inner').empty();\n            $productContainer.find('.product-link-carousel').attr('href', response.product.selectedProductUrl);\n\n            primaryImageUrls.large.forEach((imageUrl, idx) => {\n                let $carouselInner = $($('#outer').html());\n                $productContainer.find('.carousel-inner').append($carouselInner);\n\n                let $imgContainer = $carouselInner.find('img');\n                $imgContainer.data('index', idx);\n                $imgContainer.attr('id', null);\n                $imgContainer.attr('src', imageUrl.url).removeClass('hidden');\n            });\n\n            $productContainer.find('.carousel-inner').slick({\n                dots: false,\n                arrows: false,\n                slidesToShow: 2.35,\n                infinite: false,\n                slidesToScroll: 1,\n                responsive: [\n                    {\n                        breakpoint: 1023,\n                        settings: {\n                            slidesToShow: 2.5\n                        }\n                    }]\n            });\n        } else {\n            $('.mobile-gallery').slick('slickUnfilter');\n            $productContainer.find('.primary-images .carousel-item').addClass('hidden');\n            $productContainer.find('.js-intProductDetail-images-container .desktop-gallery-item').addClass('hidden');\n            $productContainer.find('.cc-intProductDetail-images').addClass('hidden');\n            $('#zoomModal').data('numberOfImages', primaryImageUrls.large.length);\n            // For each image check if tag is generated otherwise generate it and change its src\n            primaryImageUrls.large.forEach((imageUrl, idx) => {\n                var resizedUrls = '';\n                if (imageUrl.resizedUrls) {\n                    var srcSetArray = imageUrl.resizedUrls.map((element, index) => {\n                        return element + ' ' + imageUrl.sizes[index].scaleWidth + 'w';\n                    });\n                    resizedUrls = srcSetArray.join(',');\n                }\n                let $imgContainer = $productContainer.find('.primary-images').find(`img[data-index=\"${idx}\"]`);\n                let $imgContainerDesktop = $productContainer.find('.js-intProductDetail-images-container').find(`img[data-index=\"${idx}\"]`);\n                let $imgZoomModal = $productContainer.find('.js-zoomModal').find(`img[data-index=\"${idx}\"]`);\n                let $imgZoomModalMobile = $productContainer.find('.js-zoomModalMobile').find(`img[data-index=\"${idx}\"]`);\n\n                if (!$imgContainer.length) {\n                    let newCarouselSlideHtml = $('#outer').html().replaceAll('{imgIdx}', idx);\n                    $productContainer.find('.primary-images').slick('slickAdd', newCarouselSlideHtml);\n                    $imgContainer = $productContainer.find(`.primary-images img[data-index=\"${idx}\"]`);\n                }\n                if (!$imgContainerDesktop.length) {\n                    let $galleryItemContainer = $($('#outer-desktop').html().replaceAll('{imgIdx}', idx));\n                    $productContainer.find('.js-intProductDetail-images-container').append($galleryItemContainer);\n\n                    $imgContainerDesktop = $galleryItemContainer.find('img');\n                    $imgContainerDesktop.attr('data-index', idx);\n                }\n                if (!$imgZoomModal.length) {\n                    let $zoomTemplate = $($('#zoom-template').html());\n                    $productContainer.find('.js-zoomModal-content').append($zoomTemplate);\n\n                    $imgZoomModal = $zoomTemplate.find('img');\n                    $imgZoomModal.attr('data-index', idx);\n                }\n\n                if (!$imgZoomModalMobile.length) {\n                    let $zoomTemplate = $($('#zoom-template').html().replaceAll('{imgIdx}', idx));\n                    $productContainer.find('.js-zoomModal-content').append($zoomTemplate);\n\n                    $imgZoomModalMobile = $zoomTemplate.find('img');\n                    $imgZoomModalMobile.attr('data-index', idx);\n                }\n\n                if (imageUrl.resizedUrls) {\n                    $productContainer.find('.primary-images').find(`img[data-index=\"${idx}\"]`).attr('data-srcset', resizedUrls);\n                    $productContainer.find('.js-intProductDetail-images-container').find(`img[data-index=\"${idx}\"]`).attr('data-srcset', resizedUrls);\n                    if ($imgZoomModal.length) {\n                        $imgZoomModal.attr('srcset', resizedUrls).attr('data-srcset', resizedUrls);\n                    }\n                    if ($imgZoomModalMobile.length) {\n                        $imgZoomModalMobile.attr('srcset', resizedUrls).attr('data-srcset', resizedUrls);\n                    }\n                }\n                $imgZoomModalMobile.attr('src', imageUrl.url).attr('data-src', imageUrl.url).removeClass('hidden');\n                $imgZoomModal.attr('src', imageUrl.url).attr('data-src', imageUrl.url).removeClass('hidden');\n                $productContainer.find(`.cc-intProductDetail-images[data-index=\"${idx}\"]`).removeClass('hidden');\n                $productContainer.find('.primary-images').find(`img[data-index=\"${idx}\"]`).attr('src', imageUrl.url).attr('data-src', imageUrl.url).removeClass('lazyloaded').addClass('lazyload');\n                $productContainer.find('.js-intProductDetail-images-container').find(`img[data-index=\"${idx}\"]`).attr('src', imageUrl.url).attr('data-src', imageUrl.url).removeClass('lazyloaded').addClass('lazyload');\n                $productContainer.find('.primary-images').find(`.carousel-item[data-index=${idx}]`).removeClass('hidden');\n                $productContainer.find('.js-intProductDetail-images-container').find(`.desktop-gallery-item[data-index=${idx}]`).removeClass('hidden');\n            });\n            const videoUrl = response.product.videoURL;\n            $('.primary-images .js-productVideoContainer').remove();\n            $('.js-intProductDetail-images-container .js-productVideoContainer').remove();\n            if (videoUrl) {\n                // insert primary video in mobile carousel\n                let tmpl = $('.js-productVideoContainerOuter').clone()[0];\n                tmpl.setAttribute('class', 'carousel-item cc-productVideoContaner js-productVideoContainer');\n                $productContainer.find('.primary-images').slick('slickAdd', tmpl, 2, true);\n\n                // insert primary video in desktop gallery\n                tmpl = $($('#pdp-video-template-desktop').html());\n                let $secondItem = $productContainer.find('.js-intProductDetail-images-container .desktop-gallery-item')[1];\n                tmpl.insertAfter($secondItem);\n\n                $productContainer.find('.js-productVideoContainer source').attr('src', videoUrl);\n\n                let videoBlock = $productContainer.find('.js-productVideoContainer video');\n                if (videoBlock && videoBlock.length > 0) {\n                    videoBlock[0].load();\n                    videoBlock[0].autoplay = true;\n                }\n                videoListener();\n            }\n            $('.primary-images').slick('slickGoTo', 0);\n            $('.primary-images').slick('slickFilter', ':not(.hidden)');\n            if (primaryImageUrls.small.length > 0) {\n                $('.still-life-img').data('still-life', primaryImageUrls.small[0].url);\n            }\n\n            updatePrimaryImagesSlider(primaryImageUrls.large);\n        }\n    }\n\n    // Update pricing\n    if (response.product.price) {\n        updatePrices(response.product, $productContainer, response.resources);\n    }\n\n    updateAvailability(response, $productContainer);\n    // Enable \"Add to Cart\" button if all required attributes have been selected\n    $('button.js-add-to-cart, button.add-to-cart-global, button.update-cart-product-global').trigger('product:updateAddToCart', {\n        product: response.product,\n        $productContainer: $productContainer\n    }).trigger('product:statusUpdate', response.product);\n\n    if ($('.js-personalizeButtonModal').length == 0) {\n        careAndMaintenance(response.product.id);\n    }\n\n    var countryEnabled = window.PersonalizationEnabledCountries.PersonalizationEnabledCountries;\n    if (response.variation.isPersonalizedVal && response.variation.positions > 0 && countryEnabled) {\n        showButton(response);\n    } else {\n        $('#personalizeButton').addClass('hidden');\n    }\n\n    updateModelSize(response, $productContainer);\n};\n\nconst updateModelSize = (response, $productContainer) => {\n    $('.js-product-model-size').addClass('hide');\n    var modelSize = response.product.modelSize;\n    if (!modelSize) {\n        return;\n    }\n\n    $('.js-product-model-size').removeClass('hide').find('.js-modelSizeValue').text(modelSize);\n};\n\nconst handleVariationUrlsSelectSizeModal = (variationUrls) => {\n    variationUrls.forEach(function (element) {\n        $('#whislistSizeSelection-' + element.id).attr('data-attr-info-url', element.variationUrl);\n    });\n};\nconst handlePromotionTag = (product, $productContainer) => {\n    $productContainer.find('.js-promo-msg').addClass('hidden');\n    if (product.promotions && product.promotions.length > 0) {\n        for (var i = 0; i < product.promotions.length; i++) {\n            if (product.promotions[i].promotionClass === 'PRODUCT' && product.promotions[i].calloutMsg) {\n                $productContainer.find('.js-promo-msg').html(product.promotions[i].calloutMsg).removeClass('hidden');\n                break;\n            }\n        }\n    }\n};\n\nconst handleVariationUrlsSelectNotifyModal = (variationUrls) => {\n    variationUrls.forEach(function (element) {\n        if ((element.id).indexOf('/') != -1) {\n            let cleanId = (element.id).split('/')[0] + '\\\\/' + (element.id).split('/')[1];\n            $('#' + cleanId).attr('data-url', element.variationUrl);\n            $('#' + cleanId).parent().attr('sku', element.sku);\n            $('.add-size-saveForLater input[data-attr-value=\"' + cleanId + '\"]').parent().removeClass('disabled');\n            if (!element.selectable) {\n                $('.add-size-saveForLater input[data-attr-value=\"' + cleanId + '\"][data-sku=\"' + element.sku + '\"]').parent().addClass('disabled');\n            }\n        } else {\n            $('#' + element.id).attr('data-url', element.variationUrl);\n            $('#' + element.id).parent().attr('data-sku', element.sku);\n            $('#' + element.id).attr('data-sku', element.sku);\n            $('#' + element.id).attr('data-allocation', element.allocation);\n            $('#' + element.id).parent().find('.js-container').removeClass('notifyPopup').removeClass('notifyMe');\n            $('#' + element.id + '_mobile').parent().find('.js-container').removeClass('notifyPopup').removeClass('notifyMe');\n            $('.js-add-size-saveForLater input[data-attr-value=\"' + element.id + '\"]').parent().removeClass('cc-disabled');\n            $('.js-add-size-saveForLater input[data-attr-value=\"' + element.id + '\"]').parent().removeClass('cc-selected');\n            if (element.selectable === false) {\n                $('.js-add-size-saveForLater input[data-attr-value=\"' + element.id + '\"]').parent().addClass('cc-disabled');\n            }\n            if (element.selected === true) {\n                $('.js-add-size-saveForLater input[data-attr-value=\"' + element.id + '\"]').parent().addClass('cc-selected');\n            }\n            if (element.allocation === 0 || element.isComingSoon) {\n                $('.js-add-size-saveForLater input[data-attr-value=\"' + element.id + '\"]').parent().addClass('cc-disabled');\n                $('#' + element.id).parent().find('.js-container').addClass('notifyMe').addClass('notifyPopup');\n                $('#' + element.id + '_mobile').parent().find('.js-container').addClass('notifyMe').addClass('notifyPopup');\n            }\n        }\n    });\n};\n\nconst handleVariationComingSoonNotifyModal = (comingSoons) => {\n    comingSoons.forEach(function (element) {\n        if ((element.id).indexOf('/') != -1) {\n            let cleanId = (element.id).split('/')[0] + '\\\\/' + (element.id).split('/')[1];\n            $('#' + cleanId).attr('data-isComingSoon', element.isComingSoon);\n        } else {\n            $('#' + element.id).attr('data-isComingSoon', element.isComingSoon);\n        }\n    });\n};\nconst handleVariationComingSoon = (comingSoons) => {\n    if (!comingSoons) {\n        $('.marketing-budge.js-comingSoonBox').addClass('hide');\n        $('.js-comingSoonBox.pdp-comingSoonBox').addClass('hide');\n    } else {\n        $('.marketing-budge.js-comingSoonBox').removeClass('hide');\n        $('.js-comingSoonBox.pdp-comingSoonBox').removeClass('hide');\n    }\n};\n\nconst handleVariationWishlistModal = (variationUrls) => {\n    variationUrls.forEach(function (element) {\n        if ((element.id).indexOf('/') != -1) {\n            let cleanId = (element.id).split('/')[0] + '\\\\/' + (element.id).split('/')[1];\n            $('#fis-select-size-wishlist').find('#whislistSizeSelection').find('button*[data-attr-value=\"' + cleanId + '\"]').attr('data-attr-info-url', element.variationUrl);\n            $('#fis-select-size-wishlist').find('#whislistSizeSelection').find('button*[data-attr-value=\"' + cleanId + '\"]').attr('data-attr-selectable', element.selectable ? 'selectable' : 'not-selectable');\n        } else {\n            $('#fis-select-size-wishlist').find('#whislistSizeSelection').find('button*[data-attr-value=\"' + element.id + '\"]').attr('data-attr-info-url', element.variationUrl);\n            $('#fis-select-size-wishlist').find('#whislistSizeSelection').find('button*[data-attr-value=\"' + element.id + '\"]').attr('data-attr-selectable', element.selectable ? 'selectable' : 'not-selectable');\n        }\n    });\n};\n\n/**\n * This is a workaround for inexisting sizes for the cart's quick view.\n * It should be handled at decorator level but the list of actual variants is incoherent.\n */\nconst handleInexistentSizeQuickView = (data) => {\n    if (!data.product.isSizeInexistent || !$('.quickview-modal').length) {\n        return;\n    }\n\n    $('.product-content-size').find('input[data-size-id]').removeClass('hide')\n        .closest('.boolean-field').removeClass('hide')\n        .closest('.label-wrapper').removeClass('hide');\n};\n\nfunction showButton (response) {\n    // $('#iconPersMobile').removeClass('hidden');\n    if (response.variation.isPersonalizedVal === true) {\n        $('#personalizeButton').removeClass('hidden');\n    } else {\n        $('#personalizeButton').addClass('hidden');\n    }\n    $('#personalizeButton')\n        .attr('product-id', response.product.id)\n        .attr('data-positions', response.variation.positions)\n        .attr('data-customizations', response.variation.customizations)\n        .attr('data-personalizationImgTop', response.variation.personalizationImgTop)\n        .attr('data-personalizationImgDown', response.variation.personalizationImgDown);\n\n    var link = $('#personalizeButton').attr('data-url') + '?pid=' + response.product.id +\n        '&positions=' + response.variation.positions +\n        '&quantity=' + response.product.selectedQuantity;\n    $('#personalizeButton a').attr('href', link);\n    $('#personalizeButton button').attr('data-url', link);\n\n    var linkPlp = $('#personalizeButton').attr('data-url') + '?pid=' + response.product.id +\n        '&positions=' + response.variation.positions +\n        '&quantity=' + response.product.selectedQuantity +\n        '&sizeAttribute=' + $('.persButtonPdpPers').attr('size-attribute');\n\n    $('#persButtonPdpPersLink').attr('href', linkPlp);\n}\n\nfunction careAndMaintenance (pid) {\n    $('#main-and-care-label-wash-description').removeClass('hidden');\n    $('#main-and-care-label').addClass('hidden');\n\n    if (!$('#main-and-care').length) {\n        return;\n    }\n\n    $.ajax({\n        url: $('#main-and-care').attr('data-url'),\n        data: {\n            pid: pid\n        },\n        method: 'GET',\n        success: data => {\n            $('#cm-container').empty().html(data.html);\n            $.spinner().stop();\n        },\n        error: () => {\n            $.spinner().stop();\n        }\n    });\n}\n\n/**\n * @typespec UpdatedQuantity\n * @type Object\n * @property {boolean} selected - Whether the quantity has been selected\n * @property {string} value - The number of products to purchase\n * @property {string} url - Compiled URL that specifies variation attributes, product ID, options,\n *     etc.\n */\n\n/**\n * Updates the quantity DOM elements post Ajax call\n * @param {UpdatedQuantity[]} quantities -\n * @param {jQuery} $productContainer - DOM container for a given product\n */\nconst updateQuantities = (quantities, $productContainer) => {\n    if (!($productContainer.parent('.bonus-product-item').length > 0)) {\n        const optionsHtml = quantities.map(quantity => {\n            const selected = quantity.selected ? 'selected' : '';\n            return `<option value=\"${quantity.value}\"  data-url=\"${quantity.url}\" ${selected}>${quantity.value}</option>`;\n        }).join('');\n        if ($productContainer.hasClass('product-detail-quick-add')) {\n            $('.quantity-select-quick-add').empty().html(optionsHtml);\n        } else {\n            getQuantitySelector($productContainer).empty().html(optionsHtml);\n        }\n    }\n};\n\n/**\n * Retrieves url to use when adding a product to the cart\n *\n * @return {string} - The provided URL to use when adding a product to the cart\n */\nconst getAddToCartUrl = () => {\n    return $('.add-to-cart-url').val();\n};\n\n/**\n * Parses the html for a modal window\n * @param {string} html - representing the body and footer of the modal window\n *\n * @return {Object} - Object with properties body and footer.\n */\nconst parseHtml = html => {\n    var $html = $('<div>').append($.parseHTML(html));\n\n    var body = '';\n    let $results = $html.find('.choice-of-bonus-product');\n    for (let i = 0; i < $results.length; i++) {\n        body += $results[i].outerHTML;\n    }\n    var footer = $html.find('.modal-footer').children().html();\n\n    return {\n        body: body,\n        footer: footer\n    };\n};\n\n// Generates a PID based on the current selected attributes\nconst getPID = (product) => {\n    if (typeof product === 'string') {\n        return product.trim();\n    }\n\n    // size and color have already been selected. In this case, the variation\n    // group is built with the style of the product, 'color' and the selected\n    // color variation\n    if (product.productType === 'variant') {\n        let sku = product.id;\n        return sku;\n    } else if (product.productType === 'variationGroup') {\n        // in this case the user only chose the color, and not the size\n        let pid = product.id.split('_')[0].trim();\n\n        let selectedVariation;\n\n        for (let k in product.variationAttributes) {\n            const variationAttribute = product.variationAttributes[k];\n            if (variationAttribute.attributeId === 'color') {\n                for (let j in variationAttribute.values) {\n                    if (variationAttribute.values[j].selected === true) {\n                        selectedVariation = variationAttribute.values[j].value;\n                        break;\n                    }\n                }\n            }\n            if (selectedVariation !== undefined) {\n                break;\n            }\n        }\n\n        return pid + '_color_' + selectedVariation;\n    }\n\n    return '';\n};\n\n/**\n * Updates the Mini-Cart quantity value after the customer has pressed the \"Add to Cart\" button\n * @param {string} response - ajax response from clicking the add to cart button\n */\nconst handlePostCartAdd = (response) => {\n    $('.js-mainHeader-minicart').trigger('count:update', response);\n    \n    const cookies = document.cookie.split(';');\n    let cookieSizebaySessionId = null;\n    for (let i = 0; i < cookies.length; i++) {\n        const cookie = cookies[i].trim();\n        if (cookie.startsWith('SIZEBAY_SESSION_ID_V4')) {\n            cookieSizebaySessionId = cookie.substring('SIZEBAY_SESSION_ID_V4='.length).replaceAll('\"', '');\n            break;\n        }\n    };\n\n    if (cookieSizebaySessionId === null) {\n        let urlSessionId = document.querySelector('#sizebayAddProduct').getAttribute('data-sizebaysessionidurl');\n        fetch(urlSessionId)\n            .then(response => {\n                if (!response.ok) {\n                    throw new Error('Network response was not ok');\n                }\n                return response.json();\n            })\n            .then(data => {\n                createCookie('SIZEBAY_SESSION_ID_V4', data);\n                callSizebayAPI(data);\n            })\n    } else {\n        callSizebayAPI(cookieSizebaySessionId);\n    }\n};\n\nfunction callSizebayAPI(data) {\n    let url = document.querySelector('#sizebayAddProduct').getAttribute('data-sizebay-link') + '=' + data;\n    let brandURL = document.querySelector('#sizebayAddProduct').getAttribute('data-referrer-sizebay-link');\n    let currentCountry = document.querySelector('#sizebayAddProduct').getAttribute('data-sizebay-locale');\n    if (!brandURL.includes(currentCountry)) {\n        brandURL += '/' + currentCountry + '/';\n    }\n    let permaURL = brandURL + document.querySelector('.analytics.product.hidden').getAttribute('data-item_id');\n    let urlSizebay = new URL(url);\n    if (urlSizebay.searchParams.has('sid') && urlSizebay.searchParams.get('sid') === 'null') {\n        urlSizebay.searchParams.set('sid', data.trim().replace(/^\"|\"$/g, ''));\n        url = urlSizebay.toString();\n    }\n    let payload = JSON.stringify({\n        \"products\": [\n          {\n            \"permalink\":  permaURL\n          }\n        ],\n        \"tenantId\": 2399\n      });\n\n    let device = $('.cc-intProductDetail-left-content .cell .js-intProductDetail-images-container.cc-intProductDetail-images-container').css('display') === 'block' ? 'mobile' : 'desktop';\n    let referrerURL = new URL(window.location.href);\n    try {\n        fetch(url, {\n            method: 'POST',\n            body: payload,\n            referrerPolicy: \"origin-when-cross-origin\",\n            headers: {\n                \"content-type\": \"application/json\",\n                accept: \"application/json\",\n                tenant_id: '2399',\n                device: device,\n                referer: referrerURL.hostname\n            }\n        });\n    } catch (error) {\n        console.error(\"Error: \", error);\n    }\n}\n\nfunction updateQuantityPicker (source) {\n    if (source === null || source.closest('.js-pdpStickyBar-btn').length > 0 || source.closest('.js-customizePage').length > 0) {\n        source = $('.attribute-container.quantity');\n    } else {\n        source = source.closest('.attribute-container.quantity');\n    }\n\n    let value = parseInt(source.find('.js-quantity-value').html());\n    if (value === 10) {\n        source.find('.js-quantity-button[data-action=\"increase\"]').addClass('disabled');\n        source.find('.js-quantity-button[data-action=\"decrease\"]').removeClass('disabled');\n        if ($('.js-pdpStickyBar-btn').length > 0) {\n            $('.js-pdpStickyBar-btn .js-quantity-button[data-action=\"increase\"]').addClass('disabled');\n            $('.js-pdpStickyBar-btn .js-quantity-button[data-action=\"decrease\"]').removeClass('disabled');\n        }\n    } else if (value === 1) {\n        source.find('.js-quantity-button[data-action=\"decrease\"]').addClass('disabled');\n        source.find('.js-quantity-button[data-action=\"increase\"]').removeClass('disabled');\n        if ($('.js-pdpStickyBar-btn').length > 0) {\n            $('.js-pdpStickyBar-btn .js-quantity-button[data-action=\"decrease\"]').addClass('disabled');\n            $('.js-pdpStickyBar-btn .js-quantity-button[data-action=\"increase\"]').removeClass('disabled');\n        }\n    } else {\n        source.find('.js-quantity-button[data-action=\"increase\"]').removeClass('disabled');\n        source.find('.js-quantity-button[data-action=\"decrease\"]').removeClass('disabled');\n        if ($('.js-pdpStickyBar-btn').length > 0) {\n            $('.js-pdpStickyBar-btn .js-quantity-button[data-action=\"increase\"]').removeClass('disabled');\n            $('.js-pdpStickyBar-btn .js-quantity-button[data-action=\"decrease\"]').removeClass('disabled');\n        }\n    }\n}\n\nconst calculateWatchedTime = (video) => {\n    let percentageWatched = video.currentTime * 100 / video.duration;\n    return percentageWatched;\n};\n\nconst triggerVideoInteractionEvent = (action, fullPageLoad) => {\n    $('body').trigger('analytics:videoInteraction', {action: action, fullPageLoad: fullPageLoad});\n};\n\nconst videoListener = (fullPageLoad = false) => {\n    const $videoBlockContainer = $('.js-productVideoContainer');\n    const $videoPlayMiniatureIcon = $('.productVideoMiniatureMobile.js-productVideoMiniatureMobile').find('.videoMiniatureIcon');\n    let percentageWatched = 0;\n    let firstPlayback = true;\n    let watchedFullVideo = false;\n    let videoStartInSeconds = 0;\n    let videoEndInSeconds = 0;\n    if ($videoBlockContainer.length > 0 && !$videoBlockContainer.hasClass('hidden')) {\n        var myVideo = $videoBlockContainer.find('video')[0];\n        myVideo.onended = function () {\n            myVideo.currentTime = 0;\n        };\n        myVideo.onplaying = function () {\n            if (myVideo.autoplay) {\n                triggerVideoInteractionEvent('auto_play', fullPageLoad);\n            }\n            myVideo.autoplay = false;\n        };\n        myVideo.onpause = function () {\n            if (!firstPlayback) {\n                watchedFullVideo = videoEndInSeconds - videoStartInSeconds > myVideo.duration;\n                triggerVideoInteractionEvent('pause', fullPageLoad);\n                if (watchedFullVideo) {\n                    triggerVideoInteractionEvent('full_view', fullPageLoad);\n                } else if (percentageWatched >= 25 && percentageWatched < 50) {\n                    triggerVideoInteractionEvent('view25', fullPageLoad);\n                } else if (percentageWatched >= 50 && percentageWatched < 75) {\n                    triggerVideoInteractionEvent('view50', fullPageLoad);\n                } else if (percentageWatched >= 75 && percentageWatched < 100) {\n                    triggerVideoInteractionEvent('view75', fullPageLoad);\n                } else if (percentageWatched === 100) {\n                    triggerVideoInteractionEvent('full_view', fullPageLoad);\n                }\n            }\n            firstPlayback = false;\n        };\n        $('.js-pauseVideoIcon').on('click', function () {\n            myVideo.loop = false;\n            percentageWatched = calculateWatchedTime(myVideo);\n            videoEndInSeconds = new Date().getTime() / 1000;\n            myVideo.pause();\n            myVideo.currentTime = 0;\n            $videoBlockContainer.find('.js-pauseVideoIcon').addClass('hide');\n            $videoBlockContainer.find('.js-playVideoIcon').removeClass('hide');\n            $videoPlayMiniatureIcon.removeClass('black-border');\n        });\n        $('.js-playVideoIcon').on('click', function () {\n            myVideo.loop = true;\n            $videoBlockContainer.find('.js-pauseVideoIcon').removeClass('hide');\n            $videoBlockContainer.find('.js-playVideoIcon').addClass('hide');\n            $videoPlayMiniatureIcon.addClass('black-border');\n            if (myVideo.paused && !myVideo.autoplay) {\n                triggerVideoInteractionEvent('play', fullPageLoad);\n            }\n            videoStartInSeconds = new Date().getTime() / 1000;\n            myVideo.play();\n        });\n    }\n};\n\n/**\n * reorder the swatches in $swatchContainer in order to push the soldout ones at the end\n */\nconst reorderSwatches = ($swatchContainer) => {\n    if ($swatchContainer.find('span.swatch-value.soldout').length === 0) {\n        return;\n    }\n    var $soldoutColorsContainers = $swatchContainer.find('span.swatch-value.soldout').closest('div');\n    var $lastNonSoldoutColorContainer = $swatchContainer.find('span.swatch-value').closest('div').not($soldoutColorsContainers).last();\n    $soldoutColorsContainers.insertAfter($lastNonSoldoutColorContainer);\n};\n\nclass ProductHelpers {\n    constructor () {\n        this.freeGiftDetailsModal = 'freeGiftDetailsModal';\n        this.bonusProductModal = null;\n        this.methods = {\n            getPidValue: function ($el) {\n                return getPidValue($el);\n            }\n        };\n    }\n\n    run () {\n        this.colorAttribute();\n        this.colorAttributeQuickAddListing();\n        this.sizeAttribute();\n        this.sizeAttributeQuickAddListing();\n        this.sizeAttributeQuickAddPDP();\n        this.sizeAttributeSet();\n        this.quantity();\n        this.availability();\n        this.addToCart();\n        // this.selectBonusProduct();\n        // this.removeBonusProduct();\n        // this.enableBonusProductSelection();\n        // this.showMoreBonusProducts();\n        // this.closeBonusProductModal();\n        // this.enableAddAfterBonusColorSelection();\n        // this.removeSizePickerPopup();\n        // this.addBonusProductsToCart();\n        // this.handleBonusSize();\n        // this.handleBonusColor();\n        // this.removeColorPickerPopup();\n        this.careAndMaintenanceClick();\n        this.personalizationButton();\n        this.sizeTU();\n        this.quickAddListener();\n        videoListener(true);\n        NotifyHelper.notifyMeModal();\n        this.checkSoldoutAvailability();\n        SmartGiftHelper.run();\n        sizePanel.init();\n        this.registerAttributionTokenSending();\n        this.loadGoogleRecommendations();\n        this.createNextPageToken();\n    }\n\n    personalizationButton () {\n        $('body').on('click', '.persButt', (e) => {\n            e.preventDefault();\n            // Simulate disabled button with class to allow click and event\n            if ($(e.currentTarget).data('disabled') || !this.isSizeSelected()) {\n                // If no size is selected, open modal to choose one\n\n                if ($(e.currentTarget).closest('.quickview-modal').length) {\n                    // QuickView (Open the other modal type)\n\n                    let modal = $('.js-modal-quick-size-quantity');\n                    // First check if it is open\n                    if (modal.hasClass('open')) {\n                        // Check if size is selected, then add to cart\n                    } else {\n                        // Show it\n                        modal.removeClass('hidden').addClass('open');\n                        modal.find('.slick-slider.slick-initialized').slick('refresh');\n\n                        modal.find('.js-close-select-size').on('click', function (e) {\n                            modal.addClass('hidden').removeClass('open');\n                        });\n                    }\n                } else if (!($(e.currentTarget).hasClass('persButtMobile') && !$('.pdp-buy-look-container').hasClass('hidden'))) {\n                    sizePanel.openSizePanel(sizePanel.Types.PERSONALIZE);\n                }\n\n                // Prevent further progress until a size is selected\n                e.preventDefault();\n            } else {\n                if ($('.jsPersonalizationToolModal').length === 0) {\n                    let url = $(e.currentTarget).attr('data-url') || $(e.currentTarget).data('url');\n                    $.get(url, function (data) {\n                        if (data && data !== '') {\n                            let modal = newModalFromString(data, true, ['jsPersonalizationToolModal'], () => {\n                                // TODO: On Open Actions\n                                $('.tingle-modal .close').on('click touchstart', function (e) {\n                                    e.preventDefault();\n                                    modal.close();\n                                    modal.destroy();\n                                });\n                            }, () => {\n                                // TODO: On Close Actions\n                                $('[data-attr=\"size\"] input.js-mobile-size-selected').prop('checked', true);\n                            });\n                            $(modal.modalBox).addClass('rightModalAttribute cc-detailsPopup-modalBox rightModalAttribute_sizeXtraLarge');\n                            modal.open();\n                            runPersonalizationListener();\n                        }\n                    });\n                }\n            }\n        });\n    }\n\n    careAndMaintenanceClick () {\n        $(document).on('click', '.js-caremaintenance-container ul.tabs li', function () {\n            $('.js-caremaintenance-container ul.tabs li').removeClass('current');\n            $('.tab-content').removeClass('current');\n            $(this).addClass('current');\n            const description = $(this).data('tab');\n            $(`#${description}`).addClass('current');\n        });\n    }\n\n    colorAttribute () {\n        $('body').on('click', '[data-attr=\"color\"] a', e => {\n            e.preventDefault();\n            if ($(e.currentTarget).attr('disabled') || $(e.currentTarget).find('.swatch-value').hasClass('selected')) {\n                return;\n            }\n            var $productContainer = $(e.currentTarget).closest('.set-item');\n            if (!$productContainer.length) {\n                $productContainer = $(e.currentTarget).closest('.product-detail');\n            }\n\n            if (!$productContainer.length && $(e.currentTarget).hasClass('saveToLater')) {\n                $productContainer = $('.wishlist-product-card').closest('.product-detail');\n            }\n\n            let imagesShouldUpdate = true;\n            if ($productContainer.hasClass('cart-line-item')) {\n                imagesShouldUpdate = false;\n            }\n            attributeSelect(e.currentTarget.href, $productContainer, 'color', imagesShouldUpdate);\n            let color = $productContainer.prevObject.children('span').data('attr-value');\n            var firstPart = $productContainer.attr('data-pid');\n            var firstPartSplit = firstPart.split('_');\n            var firstPartSKU = '';\n            if (firstPartSplit.length > 1) {\n                firstPartSKU = firstPartSplit[0];\n            } else {\n                firstPartSKU = firstPart;\n            }\n\n            var sku = null;\n            let splitSku = firstPartSKU ? firstPartSKU.replace(/\\s+/g, '_').split('_') : [];\n            let productId = splitSku[0];\n\n            if ($('.page[data-action=\"Product-Show\"]').length > 0) {\n                let size = $('.selected-size-value').first().text().trim();\n                $('#analyticsSelectedColor').val(color);\n\n                sku = size && size !== 'false' ? productId + '_' + color + '_' + size : productId + '_' + color;\n                $('body').trigger('product:didChangeColor', {sku: sku});\n            } else if ($('.page[data-action=\"Cart-Show\"]').length > 0) {\n                let selectedSize = $('.cc-cartQuickView_selectedSize').attr('for');\n                let colorValue = $(e.currentTarget).data('color-value');\n                $('#analyticsSelectedColor').val(colorValue);\n\n                sku = selectedSize ? productId + '_' + colorValue + '_' + selectedSize : productId + '_' + colorValue;\n                $('body').trigger('product:didChangeColor', {sku: sku});\n            }\n        });\n\n        $('body').on('click', '.product-detail [data-attr=\"color\"] a', e => {\n            if ($(e.currentTarget).parents('.quickview-modal').length !== 0) {\n                return;\n            }\n            // Get new color to push to query string\n            var selectedColor = $(e.currentTarget).data('color-value');\n            if (!selectedColor) {\n                return;\n            }\n            // Perform URL query string update\n            updateProductDetailUrl('_col_', selectedColor);\n        });\n    }\n\n    colorAttributeQuickAddListing () {\n        $('body').on('click', '[data-attr=\"color-listing\"] a', e => {\n            e.preventDefault();\n            if ($(e.currentTarget).attr('disabled') || $(e.currentTarget).find('.swatch-value').hasClass('selected')) {\n                return;\n            }\n\n            var url = $(e.currentTarget).attr('href');\n            $.spinner().start();\n            $.ajax({\n                url: url,\n                type: 'GET',\n                success: function (data) {\n                    const $productTile = $(e.target).closest('.product-tile-cell');\n                    $productTile.html(data);\n                    startCarouselTileImageFunction($productTile.find('.js-tileImageCarousel'));\n                    $('body').trigger('product:didChangeColor');\n                    $.spinner().stop();\n                },\n                error: function () {\n                    $.spinner().stop();\n                }\n            });\n        });\n    }\n\n    sizeAttribute () {\n        $('body').on('change', '[data-attr=\"size\"] input', e => {\n            e.preventDefault();\n            $('.size-available').attr('available', true);\n            const selectedValue = $(e.currentTarget).attr('value');\n            $('#size').attr('size-attribute', $(e.currentTarget).attr('data-attr-value'));\n            $('.persButtonPdpPers').attr('size-attribute', $(e.currentTarget).attr('data-attr-value'));\n            if (selectedValue === 'null') {\n                return;\n            }\n\n            let $productContainer = $(e.currentTarget).closest('.set-item');\n            if (!$productContainer.length) {\n                if ($(e.currentTarget).hasClass('js-add-size-saveForLater')) {\n                    var sku = $(e.currentTarget).data('sku');\n                    $productContainer = $(e.currentTarget).closest('.cart-line-item-sku-' + sku);\n                } else {\n                    $productContainer = $(e.currentTarget).closest('.product-detail');\n                }\n            }\n            if ($(e.currentTarget).closest('.product-quickview') && $(e.currentTarget).closest('.product-quickview').length) {\n                $('.selectSizeQuickView').removeClass('toSelect');\n            }\n            if ($(e.currentTarget).closest('.js-complete-your-promo-quick-view')) {\n                $(e.currentTarget).closest('.js-complete-your-promo-quick-view').find('.add-to-cart-global').data('disabled', false);\n            }\n\n            let ignoreCTA = $('.js-prod-select-size-modal').length && !Foundation.MediaQuery.atLeast('large');\n            let isPdp = $('.page').data('action') && $('.page').data('action').toLowerCase().indexOf('product-show') > -1;\n            let isPeronalizePage = $('#personalize-page');\n            if (isPdp && isPeronalizePage) {\n                $productContainer = $('.js-intProductDetail');\n            }\n            if ($('.js-complete-your-promo-quick-view').length > 0) {\n                $productContainer = $('.js-complete-your-promo-quick-view');\n            }\n            if (isPdp && $('.js-prod-select-size-modal').length || isPeronalizePage && $('.js-prod-select-size-modal').length) {\n                ignoreCTA = false;\n            }\n\n            let imagesShouldUpdate = true;\n            if ($productContainer.hasClass('cart-line-item') || $productContainer.hasClass('js-complete-your-promo-quick-view') ) {\n                imagesShouldUpdate = false;\n            }\n            attributeSelect(selectedValue, $productContainer, 'size', imagesShouldUpdate, ignoreCTA);\n            var sizeData = $(e.currentTarget).data('attr-value');\n            var skuData = $productContainer.data('variant-pid');\n            skuData = skuData ? decodeURI(skuData).replace(/\\s+/g, '_') : '';\n\n            let color = $('#analyticsSelectedColor').val();\n            let splitSkuData = skuData ? skuData.split('_') : [];\n\n            skuData = splitSkuData.length >= 2 && color.trim().length > 0 ? splitSkuData[0] + '_' + color : skuData;\n\n            if ($('.page[data-action=\"Product-Show\"]').length > 0) {\n                $('body').trigger('product:didChangeSize', { size: sizeData, sku: skuData });\n            } else if ($('.page[data-action=\"Cart-Show\"]').length > 0) {\n                $('body').trigger('product:didChangeSize', { size: sizeData, sku: skuData });\n            }\n        });\n        $('.js-container').on('keydown', function (e) {\n            if (e.type === 'keydown' && e.originalEvent.code === 'Enter') {\n                $(e.currentTarget).trigger('click');\n            }\n        });\n        $('body').on('change', '[data-attr=\"size-mobile\"] input', e => {\n            e.preventDefault();\n            $(\"[data-attr='size-mobile'] input\")\n                .removeClass('js-mobile-size-selected')\n                .closest('.js-intProductDetail-size-item')\n                .removeClass('cc-intProductDetail-size-item_selected');\n            $(e.currentTarget)\n                .addClass('js-mobile-size-selected')\n                .closest('.js-intProductDetail-size-item')\n                .addClass('cc-intProductDetail-size-item_selected');\n            let selectedSize = $(e.currentTarget).data('size-id');\n            let $sizeSelectedeElem = $(`[data-size-id=\"${selectedSize}\"]`);\n            $sizeSelectedeElem.each(function (element) {\n                $(this).closest('.js-intProductDetail-size-item').addClass('cc-intProductDetail-size-item_selected');\n            });\n            $('js-sizeBox-openPanel').attr('');\n            $('.js-selectedSizeMobile').text($(e.currentTarget).data('size-value'));\n            $('#product-error-msg-mobile').addClass('invisible');\n            $('#product-error-msg').hide();\n        });\n        $('body').on('click', '.js-linkMobileModalConfirmSize', e => {\n            let $sizeSelected = $(\"[data-attr='size-mobile'] input.js-mobile-size-selected\");\n            $('.size-available').attr('available', true);\n            const selectedValue = $sizeSelected.attr('value');\n            $('#size').attr('size-attribute', $sizeSelected.attr('data-attr-value'));\n            $('.persButtonPdpPers').attr('size-attribute', $sizeSelected.attr('data-attr-value'));\n            if (selectedValue === undefined || selectedValue === null || selectedValue === 'null') {\n                $('#product-error-msg-mobile').removeClass('invisible');\n                return;\n            }\n            $('#product-error-msg-mobile').addClass('invisible');\n\n            let $productContainer = $sizeSelected.closest('.set-item');\n            if (!$productContainer.length) {\n                $productContainer = $sizeSelected.closest('.product-detail');\n            }\n            if ($sizeSelected.closest('.product-quickview') && $sizeSelected.closest('.product-quickview').length) {\n                $('.selectSizeQuickView').removeClass('toSelect');\n            }\n\n            let ignoreCTA = $('.js-prod-select-size-modal').length && !Foundation.MediaQuery.atLeast('large');\n            let isPdp = $('.page').data('action') && $('.page').data('action').toLowerCase().indexOf('product-show') > -1;\n            let isPeronalizePage = $('#personalize-page');\n            if (isPdp && $('.js-prod-select-size-modal').length || isPeronalizePage && $('.js-prod-select-size-modal').length) {\n                ignoreCTA = false;\n            }\n\n            let imagesShouldUpdate = true;\n            if ($productContainer.hasClass('cart-line-item')) {\n                imagesShouldUpdate = false;\n            }\n            attributeSelect(selectedValue, $productContainer, 'size', imagesShouldUpdate, ignoreCTA);\n            var sizeData = null;\n            var skuData = null;\n            if ($('.page[data-action=\"Product-Show\"]').length > 0) {\n                sizeData = $sizeSelected.attr('data-attr-value');\n                skuData = $productContainer.data('master-pid');\n            }\n            $('body').trigger('product:didChangeSize', { size: sizeData, sku: skuData });\n        });\n        $('body').on('change', '[data-attr=\"size\"] input', e => {\n            e.preventDefault();\n            $(\"[data-attr='size'] input\")\n                .removeClass('js-mobile-size-selected')\n                .closest('.js-intProductDetail-size-item')\n                .removeClass('cc-intProductDetail-size-item_selected');\n            $(e.currentTarget)\n                .addClass('js-mobile-size-selected');\n            let selectedSize = $(e.currentTarget).data('size-id');\n            let $sizeSelectedeElem = $(`[data-size-id=\"${selectedSize}\"]`);\n            $sizeSelectedeElem.each(function (element) {\n                $(this).closest('.js-intProductDetail-size-item').addClass('cc-intProductDetail-size-item_selected');\n            });\n            $('#product-error-msg').hide();\n        });\n    }\n\n    sizeAttributeQuickAddListing () {\n        $('body').on('click', '.quick-buy-sizes-item', function (e) {\n            e.preventDefault();\n\n            const selectedValue = $(e.currentTarget).data('url');\n            if (selectedValue === 'null') {\n                return;\n            }\n\n            let $productContainer = $(e.currentTarget).closest('.product-tile');\n            let imagesShouldUpdate = true;\n            if ($productContainer.hasClass('cart-line-item')) {\n                imagesShouldUpdate = false;\n            }\n            attributeSelect(selectedValue, $productContainer, 'size', imagesShouldUpdate, true);\n            $('body').trigger('product:didChangeSize');\n        });\n\n        $('body').on('quickBuy:addToCart', function (e, data) {\n            if (!$('.modal-size-show').length) {\n                return;\n            }\n\n            $('.modal-size-show').find('.js-add-to-cart').data('pid', data.product.id).trigger('click');\n            $('body').trigger('quickBuy:afterAddToCart');\n        });\n    }\n\n    sizeAttributeQuickAddPDP () {\n        if ($('.page').data('action') !== 'Product-Show') {\n            return;\n        }\n        $('body').on('click', '.js-quick-buy-sizes-item-pdp', function (e) {\n            e.preventDefault();\n            if ($(this).hasClass('disable') || !$(this).data('variant')) {\n                return false;\n            }\n\n            var url = $(this).data('variant');\n            $.spinner().start();\n            $.ajax({\n                url: url,\n                type: 'GET',\n                dataType: 'json',\n                success: function (response) {\n                    $.spinner().stop();\n                    const $productContainer = $(e.target);\n\n                    // For minicart promo carousel\n                    var promotionId = $productContainer.closest('.product').find('.promotion-info-plp').data('promo-id') || false;\n\n                    if (response.product.available && !response.product.comingSoon) {\n                        addToCartFromListing(response.product.id, promotionId, $productContainer);\n                    } else {\n                        $('body').trigger('product:afterAddToCartFailed', {\n                            ...response,\n                            $productContainer\n                        });\n                    }\n                },\n                error: function (err) {\n                    console.error('ErrorCase: ' + err.message);\n                    $.spinner().stop();\n                }\n            });\n        });\n    }\n\n    sizeAttributeSet () {\n        $('.set-size').on('click', function (e) {\n            $($(e.currentTarget).closest('.product-content-size')[0]).children('.set-size').children('.radio-label-set').removeClass('setsize-selected');\n            $(e.currentTarget).children('.radio-label-set').addClass('setsize-selected');\n            const selectedValue = e.currentTarget.children[0].value;\n            if (selectedValue === 'null') {\n                return;\n            }\n\n            var $productContainer = $(e.currentTarget).closest('.product-detail');\n            attributeSelect(selectedValue, $productContainer, 'size', false);\n\n            $('body').trigger('product:didChangeSize');\n        });\n    }\n\n    isSizeSelected () {\n        if ($('.page-checkout').length > 0 || $('.cart-page').length > 0 || $('.modal-size-show').length > 0 || isMiniCartOpen()) {\n            return true;\n        }\n        return $('[data-attr=\"size\"] input:checked').length > 0;\n    };\n\n    quantity () {\n        updateQuantityPicker(null);\n\n        $('body').on('click', '.js-quantity-button', function (e) {\n            const $button = $(this);\n            var $target = $button.closest('.quantity').find('.js-quantity-value');\n            var $input = $button.closest('.quantity').find('.quantity-select');\n            if ($button.hasClass('js-quantity-button-quick-add')) {\n                $target = $button.closest('.quantity').find('.js-quantity-value-quick-add');\n                $input = $button.closest('.quantity').find('.quantity-select-quick-add');\n            }\n            const value = parseInt($target.text());\n            if ($button.data('action') === 'increase' && value < 10 && !$button.hasClass('disabled')) {\n                let newValue = value + 1;\n                $('.js-quantity-value').text(newValue);\n                $input.val(newValue);\n\n                $('.update-cart-url').data('selected-quantity', newValue);\n                $(`[data-opener=\"QNT\"] .attribute-selection`).html(newValue);\n\n                updateQuantityPicker($button);\n                $input.trigger('change');\n            } else if ($button.data('action') === 'decrease' && value > 1 && !$button.hasClass('disabled')) {\n                let newValue = value - 1;\n                $('.js-quantity-value').text(newValue);\n                $input.val(newValue);\n                $('.update-cart-url').data('selected-quantity', newValue);\n                $(`[data-opener=\"QNT\"] .attribute-selection`).html(newValue);\n\n                updateQuantityPicker($button);\n                $input.trigger('change');\n            }\n        });\n    }\n\n    availability () {\n        $('body').on('change', '.quantity-select', e => {\n            e.preventDefault();\n\n            var $productContainer = $(e.currentTarget).closest('.product-detail');\n            if (!$productContainer.length) {\n                $productContainer = $(e.currentTarget).closest('.modal-content').find('.product-quickview');\n            }\n            if (!$productContainer.length) {\n                $productContainer = $(e.currentTarget).closest('.product-tile-modal');\n            }\n\n            if ($('.bundle-items', $productContainer).length === 0) {\n                attributeSelect($(e.currentTarget).find('option:selected').data('url'),\n                    $productContainer, '_', false);\n            }\n        });\n        $('body').on('change', '.quantity-select-quick-add', e => {\n            e.preventDefault();\n\n            var $productContainer = $(e.currentTarget).closest('.product-detail-quick-add');\n            if ($('.bundle-items', $productContainer).length === 0) {\n                attributeSelectQuickAdd($(e.currentTarget).find('option:selected').data('url'),\n                    $productContainer, '_', false);\n            }\n        });\n    }\n\n    addToCart () {\n        $('body').on('click', 'button.js-add-to-cart, button.add-to-cart-global, button.js-add-to-cart-multipack', (e) => {\n            const _openStickySizeSelectorModal = (target) => {\n                if ($(e.currentTarget).hasClass('add-to-cart-multipack')) {\n                    sizePanel.openSizePanel(sizePanel.Types.ADDTOCART_BUNDLE);\n                } else if ($(e.currentTarget).closest('.js-pdpStickyBar-btn').length > 0) {\n                    $('.js-pdpStickyBar-select').addClass('cc-sizeBox-isOpen');\n                } else {\n                    if ($('.cc-intProductDetail-size-item_selected').length === 0) {\n                        $('#product-error-msg-mobile').removeClass('invisible');\n                    }\n                    sizePanel.openSizePanel(sizePanel.Types.ADDTOCART);\n                }\n                $('.pdp-size-box .js-sizeBox-openPanel').addClass('cc-sizeBox-openPanel_error');\n                $('#product-error-msg').show();\n                $('.pdp-size-box .js-sizeBox-openPanel').attr('aria-invalid', 'true');\n            };\n\n            let addToCartUrl;\n            let pid;\n            let pidsObj;\n            let setPids;\n            let isPersonalizedProduct = $('.js-personalizeButtonCheckout').length > 0;\n\n            let target = e.currentTarget;\n            if ($(target).closest('.js-addToCartStickyBar').length > 0) {\n                // open the size modal\n                _openStickySizeSelectorModal(target);\n                return;\n            }\n            if ($(target).closest('.js-addToCartStickyBar').length > 0) {\n                // close quickview modal\n                _openStickySizeSelectorModal(target);\n            }\n\n            var $productContainer = $(e.currentTarget).closest('.product-detail');\n\n            if (!$productContainer.length) {\n                $productContainer = $(e.currentTarget).closest('.quickview-modal').find('.product-detail');\n            }\n\n            if (!$productContainer.length) {\n                $productContainer = $('.quickview-modal').find('.product-detail');\n            }\n\n            if (!$productContainer.length) {\n                $productContainer = $('.product-detail');\n            }\n\n            const GTMItem = getGtmData({\n                item_id: $('.analytics.product').attr('data-item_id'),\n                item_variant: $('.analytics.product').attr('data-item_variant')\n            });\n\n            // here we add the personalized product - if there is the personalizeButtonCheckout button, we are adding a pers product\n            if (isPersonalizedProduct) {\n                var text = $('.form-text').val();\n\n                // here we check the symbolType - in personalization we store the symbols with a number. Here we substitute them with character\n                /*\n                if ($('.form-symbolType').val() != '') {\n                    var symbol = $('.form-symbol').val();\n\n                    switch (symbol) {\n                    case '1':\n                        symbol = '/_%*_';\n                        break;\n                    case '2':\n                        symbol = '-_%*_';\n                        break;\n                    case '3':\n                        symbol = '__%*_';\n                        break;\n                    case '4':\n                        symbol = '*_%*_';\n                        break;\n                    }\n\n                    switch ($('.form-symbolType').val()) {\n                    case 'letters':\n                        switch ($('.form-text').val().length) {\n                        case 1:\n                            text = $('.form-text').val()[0] + symbol;\n                            break;\n                        case 2:\n                            text = $('.form-text').val()[0] + symbol + $('.form-text').val()[1];\n                            break;\n                        case 3:\n                            text = $('.form-text').val()[0] + $('.form-text').val()[1] + symbol + $('.form-text').val()[2];\n                            break;\n                        case 4:\n                            text = $('.form-text').val()[0] + $('.form-text').val()[1] + symbol + $('.form-text').val()[2] + $('.form-text').val()[3];\n                            break;\n                        }\n\n                        break;\n                    case 'nameSymbol':\n                        text = $('.form-text').val() + symbol;\n                        break;\n                    case 'symbolName':\n                        text = symbol + $('.form-text').val();\n                        break;\n                    default:\n                        text = $('.form-text').val();\n                    }\n                }\n                */\n                var personalizationText = text;\n                var personalizationTextFont;\n                personalizationTextFont = $('.form-font').val().indexOf('GillSansNova') > -1\n                    ? 'Avant'\n                    : ($('.form-font').val().indexOf('Didot') > -1\n                        ? 'Didot'\n                        : $('.form-font').val().indexOf('Altastgreeting') > -1\n                            ? 'Altastgreeting'\n                            : '');\n\n                var personalizationColorPref = window.PersonalizationColor.personalizationColor;\n                var personalizationColorJson = JSON.parse(personalizationColorPref);\n\n                var personalizationTextColor;\n                for (var i = 0; i < personalizationColorJson.length; i++) {\n                    if (personalizationColorJson[i].alt === $('.form-color').val()) {\n                        var src = personalizationColorJson[i].src;\n                        src = src.substring(0, src.lastIndexOf('.'));\n                        personalizationTextColor = src;\n                    }\n                }\n\n                var personalizationPositionKey = $('.form-position').val();\n\n                // ----\n\n                var customizationClassPref = window.CustomizationClass.customizationClass;\n                var customizationClassJson = JSON.parse(customizationClassPref);\n                var category = $('#category').attr('category-attribute');\n                personalizationPositionKey = (customizationClassJson[category]['customizationPositions'] === 1)\n                    ? customizationClassJson[category]['0']\n                    : customizationClassJson[category][($('.form-position').val()).toString()];\n\n                // ----\n\n                var personalizationTextSVG = $('#base64').attr('data-fullTextSVG');\n                var personalizationFullSVG = $('#base64').attr('data-fullSVG');\n                var personalizationSmallSVG = $('#base64').attr('data-smallSVG');\n\n                $.spinner().start();\n\n                addToCartUrl = $('#custom-page').attr('data-url');\n                var quantity = $('.js-quantity-value').html();\n                var uniqueIdentifiers = {};\n                for (var i = 0; i < quantity; i++) {\n                    var random = Math.random();\n                    var id = 'uniqueIdentifier' + i;\n                    uniqueIdentifiers[id] = random;\n                }\n                uniqueIdentifiers = JSON.stringify(uniqueIdentifiers);\n\n                if ($('#pidToAdd').attr('pidRecentlyAdded') == undefined) {\n                    // $('#custom-page').attr('data-pid', $('#pidToAdd').attr('data-pid'));\n                    $('#pidToAdd').attr('isToLoad', 'false');\n                }\n\n                if ($('#pidToAdd').attr('isToLoad') == 'true') {\n                    $('#custom-page').attr('data-pid', $('#pidToAdd').attr('pidRecentlyAdded'));\n                }\n\n                $('#pidToAdd').attr('pidRecentlyAdded', $('.personalizeButtonBtn').attr('product-id'));\n\n                if (quantity > 1) {\n                    var form = {\n                        pid: $('.personalizeButtonBtn').attr('product-id'),\n                        quantity: quantity,\n                        personalizedObj: true,\n                        uniqueIdentifiers: uniqueIdentifiers, // Random value\n                        personalizationText: personalizationText,\n                        personalizationTextFont: personalizationTextFont,\n                        personalizationTextColor: personalizationTextColor,\n                        personalizationPositionKey: personalizationPositionKey,\n                        personalizationTextSVG: personalizationTextSVG,\n                        personalizationFullSVG: personalizationFullSVG,\n                        personalizationSmallSVG: personalizationSmallSVG,\n                        isDate: $('.choice-item.choice-item-3').hasClass('active'),\n                        isLove: $('#love').hasClass('active'),\n                        GTMItemListName: GTMItem.item_list_name,\n                        GTMItemListId: GTMItem.item_list_id,\n                        GTMIndex: GTMItem.index\n                    };\n                } else {\n                    var form = {\n                        pid: $('.personalizeButtonBtn').attr('product-id'),\n                        quantity: quantity,\n                        personalizedObj: true,\n                        uniqueIdentifier: Math.random(), // Random value\n                        personalizationText: personalizationText,\n                        personalizationTextFont: personalizationTextFont,\n                        personalizationTextColor: personalizationTextColor,\n                        personalizationPositionKey: personalizationPositionKey,\n                        personalizationTextSVG: personalizationTextSVG,\n                        personalizationFullSVG: personalizationFullSVG,\n                        personalizationSmallSVG: personalizationSmallSVG,\n                        isDate: $('.choice-item.choice-item-3').hasClass('active'),\n                        isLove: $('#love').hasClass('active'),\n                        GTMItemListName: GTMItem.item_list_name,\n                        GTMItemListId: GTMItem.item_list_id,\n                        GTMIndex: GTMItem.index\n                    };\n                }\n                $('.js-customizePage .js-customizePage-icon_pageClose').trigger('click');\n            } else {\n                // ------\n                if (!$(e.currentTarget).hasClass('product-set')) {\n                    // Simulate disabled button with class to allow click and event\n                    if ($(e.currentTarget).data('disabled') || !this.isSizeSelected()) {\n                        $('.persButtonPdpAdd').show();\n                        $('.persButtonPdpPers').hide();\n                        // If no size is selected, open modal to choose one\n                        if (!$('.cc-text.selected-size-msg.show-when-size-selected')) {\n                            $('#newsletter-error-msg').toggle();\n                        }\n                        if ($(e.currentTarget).closest('.quickview-modal').length) {\n                            // QuickView (Open the other modal type)\n\n                            let modal = $('.js-modal-quick-size-quantity');\n                            // First check if it is open\n                            if (modal.hasClass('open')) {\n                                // Check if size is selected, then add to cart\n                            } else {\n                                // Show it\n                                modal.removeClass('hidden').addClass('open');\n                                modal.find('.slick-slider.slick-initialized').slick('refresh');\n\n                                modal.find('.js-close-select-size').on('click', function (e) {\n                                    modal.addClass('hidden').removeClass('open');\n                                });\n                                if ($('.js-modal-quick-size-quantity [data-attr=\"size\"] input#TU:checked').length > 0\n                                    && $('.quickview-modal .global-availability').data('ready-to-order')) {\n                                    $('.quickview-modal').find('button.add-to-cart-global').data('disabled', false);\n                                }\n                                if (Foundation.MediaQuery.is('small')) {\n                                    $('.quickview-modal .wrapper-details').animate({\n                                        scrollTop: $('.wrapper-inner-quick-bottom').eq(0).offset().top\n                                    }, 500);\n                                }\n                            }\n                        } else {\n                            _openStickySizeSelectorModal(e.currentTarget);\n                        }\n\n                        // Prevent further progress until a size is selected\n                        return;\n                    }\n                }\n\n                $('body').trigger('product:beforeAddToCart', e.currentTarget);\n\n                if ($('.set-items').length && $(e.currentTarget).hasClass('add-to-cart-global')) {\n                    setPids = [];\n\n                    $('.product-detail').each(function () {\n                        if (!$(e.currentTarget).hasClass('product-set-detail')) {\n                            setPids.push({\n                                pid: $(e.currentTarget).find('.product-id').text(),\n                                qty: $(e.currentTarget).find('.quantity-select').val(),\n                                options: []\n                            });\n                        }\n                    });\n                    pidsObj = JSON.stringify(setPids);\n                }\n\n                pid = getPidValue($(e.currentTarget));\n                // console.log(pid);\n\n                if ($(target).closest('div.js-pdpStickyBar-btn').length > 0) {\n                    $productContainer.addClass('analytics-addToCart-sticky');\n                }\n\n                addToCartUrl = getAddToCartUrl();\n\n                let uid = $(e.currentTarget).data('uid');\n\n                var pidSet;\n                var buttonAdd = $('button.js-add-to-cart, button.add-to-cart-global, button.update-cart-product-global');\n\n                for (var j = 0; j < buttonAdd.length; j++) {\n                    if (uid === $(buttonAdd[i]).data('uid')) {\n                        pidSet = $(buttonAdd[i]).attr('data-pid');\n                    }\n                }\n\n                var promoId = $('.js-promo-msg.marketing-budge', $productContainer).first().data('promotion-id') || false;\n\n                // ------\n                var form = {\n                    pid: pid || pidSet,\n                    pidsObj: pidsObj,\n                    childProducts: [],\n                    quantity: getQuantitySelected($(e.currentTarget)),\n                    uuid: uid,\n                    promoId: promoId,\n                    GTMItemListName: GTMItem.item_list_name,\n                    GTMItemListId: GTMItem.item_list_id,\n                    GTMIndex: GTMItem.index\n                };\n\n                if (!$('.bundle-item').length) {\n                    form.options = [];\n                }\n\n                if ($('.js-complete-your-promo').length > 0) {\n                    $('.js-complete-the-promo-status').val($('.js-complete-the-promo-status').val() - form.quantity);\n                    form.completePromoItems = $('.js-complete-the-promo-status').val();\n                    $productContainer.addClass('analytics-completeYourPromo');\n                }\n            }\n\n            $(e.currentTarget).trigger('updateAddToCartFormData', form);\n            $('body').trigger('updateQuickAddToCartModal', form);\n            if (addToCartUrl) {\n                $.ajax({\n                    url: addToCartUrl,\n                    method: 'POST',\n                    data: form,\n                    success: data => {\n                        $.spinner().stop();\n                        if (data.error && isPersonalizedProduct) {\n                            $('.content-input-err').removeClass('hidden');\n                        } else {\n                            if (data.completePromoItemsLabel && data.completePromoItemsLabel !== '' && $('.js-completeYourPromo-header_remaining').length > 0) {\n                                $('.js-completeYourPromo-header_remaining').html(data.completePromoItemsLabel);\n                                if (form.completePromoItems === '0') {\n                                    $('.js-completeYourPromo-header_remaining').addClass('cc-cartPromotionModal-footer_completed');\n                                }\n                            }\n                            $('body').trigger('product:afterAddToCart', {\n                                ...data,\n                                form,\n                                $productContainer\n                            });\n                            data.quantityTotal = data.cart ? data.cart.numItems : data.cartModel.numItems;\n                            handlePostCartAdd(data);\n                        }\n                    },\n                    error: () => {\n                        $.spinner().stop();\n                    }\n                });\n            }\n        });\n    }\n\n    /*\n    selectBonusProduct () {\n        $('body').on('click', '.select-bonus-product', function () {\n            var $choiceOfBonusProduct = $(this).parents('.choice-of-bonus-product');\n            var pid = $(this).data('pid');\n            var maxPids = $('.choose-bonus-product-dialog').data('total-qty');\n            var submittedQty = parseInt($(this).parents('.choice-of-bonus-product').find('.bonus-quantity-select').val(), 10);\n            var totalQty = 0;\n            $.each($('#chooseBonusProductModal .selected-bonus-products .selected-pid'), function () {\n                totalQty += $(this).data('qty');\n            });\n            totalQty += submittedQty;\n            var optionID = $(this).parents('.choice-of-bonus-product').find('.product-option').data('option-id');\n            var valueId = $(this).parents('.choice-of-bonus-product').find('.options-select option:selected').data('valueId');\n            if (totalQty <= maxPids) {\n                const selectedBonusProductHtml = `\n                    <div class=\"selected-pid grid-x\"\n                        data-pid=\"${pid}\"\n                        data-qty=\"${submittedQty}\"\n                        data-optionID=\"${(optionID || '')}\"\n                        data-option-selected-value=\"${(valueId || '')}\">\n\n                        <div class=\"cell medium-10 h5\">${$choiceOfBonusProduct.find('.product-name').html()}</div>'\n                        <div class=\"cell medium-1\">\n                            <i class=\"fa fa-times\" aria-hidden=\"true\"></i>\n                        </div>\n                    </div>`;\n\n                $('#chooseBonusProductModal .selected-bonus-products').append(selectedBonusProductHtml);\n                $('.pre-cart-products').html(totalQty);\n                $('.selected-bonus-products .bonus-summary').removeClass('alert-danger');\n            } else {\n                $('.selected-bonus-products .bonus-summary').addClass('alert-danger');\n            }\n        });\n    }\n    */\n\n    sizeTU () {\n        if (document.getElementById('TU')) {\n            document.getElementById('TU').click();\n        }\n    }\n\n    quickAddListener () {\n        $('body').on('click', '.js-panel-opener-size-quick-add', function (e, data) {\n            /** open/close quickAdd modal**/\n            e.preventDefault();\n            if ($(this).find('.icon-toggle-top.triangle-dropdown-pdp').hasClass('icon-toggle-opened')) {\n                $('.js-modal-quick-add-size-quantity').addClass('hidden');\n                $('.product-detail-quick-add .icon-toggle-top.triangle-dropdown-pdp').removeClass('icon-toggle-opened');\n                $('.product-detail-quick-add .size-opener-opened').addClass('hidden');\n                $('.product-detail-quick-add .size-opener-closed').removeClass('hidden');\n            } else {\n                $('.product-detail-quick-add .icon-toggle-top.triangle-dropdown-pdp').removeClass('icon-toggle-opened');\n                $(this).find('.icon-toggle-top.triangle-dropdown-pdp').addClass('icon-toggle-opened');\n                var mustAdd = (data && data.mustAdd === true) || false;\n                $(this).closest('.product-detail-quick-add').find('.add-to-cart-quick-add').data('mustAdd', mustAdd);\n                const pid = $(this).attr('data-pid');\n                const url = $(this).attr('data-get-url');\n                $(this).find('.size-opener-opened').removeClass('hidden');\n                $(this).find('.size-opener-closed').addClass('hidden');\n                showQuickAddItems(pid, url);\n            }\n        });\n\n        $('body').on('click', '.js-close-select-size-quick-add', function (e) {\n            /** close quickAdd modal**/\n            e.preventDefault();\n            $('.js-modal-quick-add-size-quantity').addClass('hidden');\n            $('.product-detail-quick-add .icon-toggle-top.triangle-dropdown-pdp').removeClass('icon-toggle-opened');\n            $('.product-detail-quick-add .size-opener-opened').addClass('hidden');\n            $('.product-detail-quick-add .size-opener-closed').removeClass('hidden');\n        });\n\n        $('body').on('change', '[data-attr=\"size_qa\"] input ', e => {\n            /** change size and update attribute for the cart**/\n            e.preventDefault();\n            const selectedValue = $(e.currentTarget).attr('value');\n            if (selectedValue === 'null') {\n                return;\n            }\n\n            let $productContainer = $(e.currentTarget).closest('.product-detail-quick-add');\n            if ($productContainer && $productContainer.length > 0) {\n                attributeSelectQuickAdd(selectedValue, $productContainer, '_', false);\n                $productContainer.find('.add-to-cart-quick-add').attr('data-size-available', true);\n                $productContainer.find('.add-to-cart-quick-add').attr('data-size-selected', $(e.currentTarget).data('attr-id'));\n                $productContainer.find('.add-to-cart-quick-add').removeClass('item-added-quick');\n            }\n            $('body').trigger('product:didChangeSize');\n        });\n\n        $('body').on('product:updateAddToCartQuickAdd', (e, response) => {\n            /** manage response variation after size selection **/\n            let availabilityValue = '';\n            let availabilityMessages = response.product.availability.messages;\n            var $productContainer = response.$productContainer;\n            $productContainer.find('.response-message-quick-add').empty();\n            if ($productContainer.find('[data-attr=\"size_qa\"] input:checked') && $productContainer.find('[data-attr=\"size_qa\"] input:checked').length > 0) {\n                var sizeChecked = $productContainer.find('[data-attr=\"size_qa\"] input:checked').attr('data-display-value');\n                $productContainer.find('.size-selected').text(sizeChecked);\n                $productContainer.find('.response-message-quick-add').addClass('hidden');\n                $productContainer.find('.add-to-cart-quick-add').attr('data-size-available', true);\n                $productContainer.find('.add-to-cart-quick-add').attr('data-pid', response.product.id);\n                $productContainer.find('.response-error-quick-add').addClass('hidden');\n            }\n            if (!response.product.readyToOrder) {\n                $productContainer.find('.add-to-cart-quick-add').attr('data-disabled', true);\n                $productContainer.find('.add-to-cart-quick-add').attr('disabled', true);\n            } else if (!response.product.available || response.product.comingSoon) {\n                $productContainer.find('.add-to-cart-quick-add').attr('data-disabled', true);\n                $productContainer.find('.add-to-cart-quick-add').attr('disabled', true);\n                availabilityMessages.forEach(message => {\n                    availabilityValue += `<div>${message}</div>`;\n                });\n                $productContainer.find('.response-message-quick-add').html(availabilityValue);\n            } else {\n                $productContainer.find('.add-to-cart-quick-add').attr('data-disabled', false);\n                $productContainer.find('.add-to-cart-quick-add').attr('disabled', false);\n            }\n        });\n\n        $('body').on('click', 'button.add-to-cart-quick-add', (e) => {\n            if ($(e.currentTarget).closest('.completeYourLookContainer').length > 0) {\n                localStorage.setItem('prevlisttypeforcart', localStorage.getItem('listtypeforcart'));\n                localStorage.setItem('listtypeforcart', 'complete_your_look');\n            }\n\n            let addToCartUrl;\n            let pidsObj;\n            const $productContainer = $(e.currentTarget).closest('.product-detail-quick-add');\n            // Simulate disabled button with class to allow click and event\n            if ($(e.currentTarget).attr('data-size-available') !== 'true') {\n                $productContainer.find('.response-message-quick-add').removeClass('hidden');\n                return;\n            } else if ($(e.currentTarget).attr('data-disabled') === 'true' || $(e.currentTarget).attr('data-disabled') === 'NaN') {\n                return;\n            }\n            $productContainer.find('.response-message-quick-add').addClass('hidden');\n            $productContainer.find('.response-error-quick-add').addClass('hidden');\n\n            $('body').trigger('product:beforeAddToCart', e.currentTarget);\n\n            let pid = $(e.currentTarget).attr('data-pid');\n            let uid = $(e.currentTarget).attr('data-uid');\n            let quantitySelected = parseInt($(e.currentTarget).attr('data-quantity')) || 1;\n\n            addToCartUrl = getAddToCartUrl();\n\n            let promoId = false;\n            if ($('.promoCrossSellEnabled').length > 0) {\n                promoId = $('.js-promo-msg.marketing-budge').first().data('promotion-id') || false;\n            }\n\n            const GTMItem = getGtmData({\n                item_id: $('.analytics.product').attr('data-item_id'),\n                item_variant: $('.analytics.product').attr('data-item_variant')\n            });\n\n            var form = {\n                pid: pid,\n                pidsObj: pidsObj,\n                childProducts: [],\n                quantity: quantitySelected,\n                uuid: uid,\n                promoId: promoId,\n                GTMItemListName: GTMItem.item_list_name,\n                GTMItemListId: GTMItem.item_list_id,\n                GTMIndex: GTMItem.index\n            };\n\n            $(e.currentTarget).trigger('updateAddToCartFormData', form);\n            if (addToCartUrl) {\n                $.ajax({\n                    url: addToCartUrl,\n                    method: 'POST',\n                    data: form,\n                    success: data => {\n                        $.spinner().stop();\n                        if (data.error) {\n                            $productContainer.find('.response-error-quick-add').removeClass('hidden');\n                        } else {\n                            $('body').trigger('product:afterAddToCart', {\n                                ...data,\n                                form,\n                                $productContainer\n                            });\n                            data.quantityTotal = data.cart.numItems;\n                            handlePostCartAdd(data);\n                            $productContainer.find('.add-to-cart-quick-add').addClass('item-added-quick');\n                            $('.js-modal-quick-add-size-quantity').addClass('hidden');\n                            $('.product-detail-quick-add .icon-toggle-top.triangle-dropdown-pdp').removeClass('icon-toggle-opened');\n                            $('.product-detail-quick-add .size-opener-opened').addClass('hidden');\n                            $('.product-detail-quick-add .size-opener-closed').removeClass('hidden');\n                        }\n                    },\n                    error: () => {\n                        $.spinner().stop();\n                    }\n                });\n            }\n        });\n    }\n\n    checkSoldoutAvailability () {\n        if ($('.page').data('action') !== 'Product-Show') {\n            return;\n        }\n        var $productContainer = $('div.product-detail.container').first();\n        var attributesUpdateUrl = $productContainer.data('variationAttrUpdate');\n        if (!attributesUpdateUrl) {\n            return;\n        }\n        $.ajax({\n            url: attributesUpdateUrl,\n            method: 'GET',\n            dataType: 'json',\n            success: data => {\n                if (data.product && data.product.variationAttributes) {\n                    updateAttrs(data.product.variationAttributes, $productContainer);\n                    updateAvailability(data, $productContainer);\n                    $('body').trigger('product:updateAddToCart', {\n                        product: data.product,\n                        $productContainer: $productContainer\n                    });\n                    // reorder swatches in order to push soldout colors in the laste positions\n                    reorderSwatches($('.js-carousel-select-color.not-sale-container'));\n                    reorderSwatches($('.js-carousel-select-color.on-sale-container'));\n                }\n            }\n        });\n    }\n    registerAttributionTokenSending () {\n        $('body').on('click', '.js-google-recommendations-container .js-prodTile', function () {\n            const attributionToken = $(this).closest('.js-google-recommendations-container').data('attributionToken');\n            createCookie('attribution_token', attributionToken);\n        });\n    }\n    loadGoogleRecommendations () {\n        const $googleConfig = $('.js-googleRecommendationConfig');\n        if ($googleConfig.length) {\n            const url = $('#googleRecommendationsUrl').val();\n            const servingConfig = $googleConfig.data('servingConfig');\n            const nodeToAppendTo = $googleConfig.data('nodeToAppendTo');\n            const cgid = $('#primaryCategoryId').val();\n            const sku = $('#variationGroupSku').val();\n            const route = $('.page').data('action');\n\n            $.ajax({\n                type: 'GET',\n                url: url,\n                data: {\n                    cgid: cgid,\n                    sku: sku,\n                    route: route,\n                    servingConfig: servingConfig\n                },\n                success: function (html) {\n                    const $outputContainer = $(nodeToAppendTo).find('.google-recommendation-results');\n                    if (!$outputContainer.length) {\n                        $('<div class=\"google-recommendation-results\"></div>').appendTo(nodeToAppendTo);\n                    }\n                    $(nodeToAppendTo).find('.google-recommendation-results').empty().append(html);\n                },\n                error: function () {\n                    $('#youMayAlsoLikeContainer').addClass('hidden');\n                }\n            });\n        }\n    }\n\n    createNextPageToken () {\n        const $googleAttributionToken = $('.js-google-search-token');\n        if ($googleAttributionToken.length) {\n            const attributionToken = $googleAttributionToken.data('attributiontoken');\n            const previousPageToken = $googleAttributionToken.data('nextpagetoken');\n            const url = new URL(window.location.href);\n            const searchTerm = url.searchParams.get('q');\n            createCookie('prev_search_query', searchTerm);\n            createCookie('search_attribution_token', attributionToken);\n            if (previousPageToken !== null) {\n                createCookie('previousPageToken', previousPageToken);\n            }\n        }\n    }\n}\n\nconst productHelpers = new ProductHelpers();\nexport default productHelpers;\nexport {\n    moveModalCloseButton,\n    parseHtml,\n    activatePromoAnimationMessage,\n    updateColorFamily,\n    updatePrices,\n    updateAvailability,\n    updateOptions,\n    updateQuantities,\n    isMiniCartOpen,\n    isChooseBonusProductModalOpen,\n    isQuickUpdateFromModal,\n    isMobileDevice\n};\n","'use strict';\n\nclass Accordion {\n    setup (element = false) {\n        this.accordionElement = element || $('.accordion');\n        this.init();\n        var _closeAllAcordion = this.closeAllAcordionItems;\n        var _closeActiveAccordion = this.closeActiveAccordion;\n        this.accordionElement.on('click', '.accordion-title:not(.disabled)', function (e) {\n            e.preventDefault();\n            if (!$(e.currentTarget).hasClass('js-find-in-store-btn')) {\n                e.stopPropagation();\n            }         \n            const $accordion = $(this).closest('.accordion');\n            const $item = $(this).closest('.accordion-item');\n            const $content = $(this).next('.accordion-content');\n            const breakpoint = $accordion.data('accordion-size');\n\n            const closeAllOpenPanels = !$accordion.hasClass('multiple-panels') && !$(this).parent().hasClass('active');\n            const closeActivePanel = $(this).parent().hasClass('active');\n\n            if (breakpoint === 'small' && !Foundation.MediaQuery.atLeast('medium')) {\n                if (closeAllOpenPanels) {\n                    _closeAllAcordion($accordion);\n\n                    $content.slideDown({\n                        progress: function () {\n                            if ($item.offset().top < ($(window).scrollTop() + $('header').height())) {\n                                window.scrollTo(0, ($item.offset().top - $('header').height()));\n                            }\n                        }\n                    });\n                }\n\n                $item.addClass('active');\n\n                if (closeActivePanel) {\n                    _closeActiveAccordion($item);\n                }\n            } else if (breakpoint === 'medium' && !Foundation.MediaQuery.atLeast('large')) {\n                if (closeAllOpenPanels) {\n                    _closeAllAcordion($accordion);\n                }\n\n                $item.addClass('active');\n                $content.slideDown({\n                    progress: function () {\n                        if ($item.offset().top < ($(window).scrollTop() + $('header').height())) {\n                            window.scrollTo(0, ($item.offset().top - $('header').height()));\n                        }\n                    }\n                });\n            } else if (breakpoint === 'tablet' && !Foundation.MediaQuery.atLeast('large')) {\n                if (closeAllOpenPanels) {\n                    _closeAllAcordion($accordion);\n                }\n\n                $item.addClass('active');\n                $content.slideDown({\n                    progress: function () {\n                        if ($item.offset().top < ($(window).scrollTop() + $('header').height())) {\n                            window.scrollTo(0, ($item.offset().top - $('header').height()));\n                        }\n                    }\n                });\n            } else if (breakpoint === 'all') {\n                if (closeAllOpenPanels) {\n                    _closeAllAcordion($accordion);\n                    $('body').trigger('accordion:breakpoint-all-expanded', $item);\n                }\n\n                $item.addClass('active');\n                $content.slideDown({\n                    progress: function () {\n                        if ($item.offset().top < ($(window).scrollTop() + $('header').height())) {\n                            window.scrollTo(0, ($item.offset().top - $('header').height()));\n                        }\n                    }\n                });\n            }\n        });\n        this.accordionElement.on('keydown', '.accordion-title:not(.disabled)', function (e) {\n            if (e.type === 'keydown' && e.originalEvent.code === 'Enter') {\n                $(e.currentTarget).trigger('click');\n            }\n        });\n        // close at click\n        this.accordionElement.on('click', '.accordion-item.active .accordion-title', function (e) {\n            e.preventDefault();\n            $(e.currentTarget).siblings('.accordion-content').slideUp('fast');\n            $(e.currentTarget).closest('.accordion-item').removeClass('active');\n        });\n\n        $(window).on('changed.zf.mediaquery', () => {\n            this.init();\n        });\n\n        this.accordionElement.find('.accordion-item[data-open-on-init=\"true\"]').find('.accordion-title').trigger('click');\n    }\n\n    init () {\n        this.accordionElement.each(function () {\n            const $accordion = $(this).closest('.accordion');\n            const breakpoint = $accordion.data('accordion-size');\n\n            if (breakpoint === 'small' && !Foundation.MediaQuery.atLeast('medium')) {\n                $accordion.addClass('initialized');\n                $accordion.find('.accordion-content').hide();\n            } else if (breakpoint === 'medium' && !Foundation.MediaQuery.atLeast('large')) {\n                $accordion.addClass('initialized');\n                $accordion.find('.accordion-content').hide();\n            } else if (breakpoint === 'tablet' && !Foundation.MediaQuery.atLeast('large')) {\n                $accordion.addClass('initialized');\n                $accordion.find('.accordion-content').hide();\n            } else if (breakpoint !== 'all') {\n                $accordion.removeClass('initialized');\n                $accordion.find('.accordion-content').show();\n            } else if (breakpoint === 'all') {\n                $accordion.addClass('initialized');\n                $accordion.find('.accordion-content').hide();\n            }\n        });\n    }\n\n    closeAllAcordionItems ($accordionContainer) {\n        $accordionContainer.find('.accordion-content').slideUp('fast');\n        $accordionContainer.find('.accordion-item').removeClass('active');\n    }\n\n    closeActiveAccordion ($accordionItem) {\n        $accordionItem.removeClass('active');\n        $accordionItem.find('.accordion-content').slideUp('fast');\n    }\n}\n\nconst accordion = new Accordion();\nexport default accordion;\n","'use strict';\n\nimport {\n    newModalFromSelector\n} from '../components/modal';\n\nimport sizePanel from './sizePanel';\n\n// Checks if size is selected before adding to wishlist\nfunction isSizeSelected () {\n    if ($('.page-checkout').length > 0 || $('.cart-page').length > 0) {\n        return true;\n    }\n    if ($('.form-control.pdp-size-box.checkbox-size').length > 0 || $('.form-control.pdp-size-box.checkbox-quickview-mobile').length > 0) {\n        return ($('.form-control.pdp-size-box.checkbox-size input:checked').length > 0 || $('.form-control.pdp-size-box.checkbox-quickview-mobile input:checked').length > 0);\n    } else {\n        return $('[data-attr=\"size\"] input:checked').length > 0;\n    }\n};\n\n\n/**\n * Adapts FE to the current state of the wishlist:\n *  - Add / Remove the `added` class to the correct target (either button or icon)\n *  - Shows the \"correctly added\" / \"correctly removed\" notification\n *  - Triggers ADD event for analytics\n *  - Add/remove the PID from the ID in page to always have the correct state\n *      (updateWishlistInternalState)\n * @param {string} data - data returned from the server's ajax call\n * @param {Object} icon - icon that was clicked to toggle a product to the wishlist\n * @param {boolean} isAddAction - if the te action was add or remove\n */\nfunction displayMessageAndChangeIcon (data, icon, isAddAction) {\n    if (data.success) {\n        $('body').trigger('wishlist:update', data.wishlistTotal);\n\n        if (icon) {\n            if (isAddAction) {\n                if ($('.page').data('action') === 'Product-Show' && $('.js-pdpStickyBar').length > 0) {\n                    $('.wishlist-icon').addClass('added');\n                    $('.wishlist-icon').find('use').attr('href', icon.data('full-heart'));\n                } else {\n                    icon.addClass('added');\n                    icon.find('use').attr('href', icon.data('full-heart'));\n                }\n                let sender = icon.data('analytics-sender') ? icon.data('analytics-sender') : '';\n                $('body').trigger('wishlist:add', { sku: data.pid, sender: sender });\n            } else {\n                if ($('.page').data('action') === 'Product-Show' && $('.js-pdpStickyBar').length > 0) {\n                    $('.wishlist-icon').removeClass('added');\n                    $('.wishlist-icon').find('use').attr('href', icon.data('empty-heart'));\n                } else {\n                    icon.removeClass('added');\n                    icon.find('use').attr('href', icon.data('empty-heart'));\n                }\n            }\n            updateAriaLabelForWishlistLink($('.wishlist-icon'));\n            icon.blur();\n        }\n\n        showWishlistNotification(data.renderedTemplate);\n\n        updateWishlistInternalState(data.pid, isAddAction);\n    }\n}\n\nfunction showWishlistNotification (html) {\n    $('body').append(html);\n    let offsetTop = 12;\n    if (Foundation.MediaQuery.atLeast('large')) {\n        offsetTop = $('.js-mainHeader').outerHeight() + 10;\n    }\n    $('.js-add-to-wishlist-notification').css({\n        top: offsetTop\n    });\n\n    function closeNotification () {\n        $('.js-add-to-wishlist-notification').off('click', '.js-close-notification');\n        $('.js-add-to-wishlist-notification').remove();\n    }\n\n    $('.js-add-to-wishlist-notification').on('click', '.js-close-notification', closeNotification);\n\n    setTimeout(closeNotification, 5000);\n}\n\n/**\n * Updates the internal state of the wishlist with the new item:\n *  - adds the item in the state if the item was added\n *  - removes the item if the item was removed\n * @param {string} pid - The PID of the product changed in the wishlist\n * @param {boolean} isAddAction - true if the item has been added, false is it has been removed\n */\nfunction updateWishlistInternalState (pid, isAddAction) {\n    /** @type {Array.<string>} */\n    let oldItems = $('#wishlistItems').val().split(',');\n    let newItems;\n    if (isAddAction) {\n        oldItems.push(pid);\n        newItems = oldItems.join(',');\n    } else {\n        let oldIdx = oldItems.indexOf(pid);\n        if (oldIdx > -1) {\n            oldItems.splice(oldIdx, 1);\n            newItems = oldItems.join(',');\n        }\n    }\n    $('#wishlistItems').val(newItems);\n};\n\nfunction addDefinitelyToWishlist (sender, productID, e) {\n    // If productID is set then it means that it belongs to an unavailable size\n    // Add or remove from wishlist now!\n\n    var btn = sender;\n    var addURL = btn.data('href');\n    var removeURL = btn.data('remove');\n\n    let pid = '';\n    if (productID === null) {\n        pid = $('.product-detail-keeper').attr('data-variant-pid');\n    } else {\n        pid = productID;\n    }\n    var optionId = btn.closest('.product-detail-keeper').find('.product-option').attr('data-option-id');\n    var optionVal = btn.closest('.product-detail-keeper').find('.options-select option:selected').attr('data-value-id');\n    optionId = optionId || null;\n    optionVal = optionVal || null;\n\n    var shouldAdd = !btn.hasClass('added');\n\n    if (!(addURL && removeURL) || !pid) {\n        return;\n    }\n\n    $.spinner().start();\n    $.ajax({\n        url: shouldAdd ? addURL : removeURL,\n        type: shouldAdd ? 'post' : 'get',\n        dataType: 'json',\n        data: {\n            pid: pid,\n            optionId: optionId,\n            optionVal: optionVal\n        },\n        success: function (data) {\n            // if (productID === null) {\n            //     displayMessageAndChangeIcon(data, btn, shouldAdd);\n            // }\n            if ($('.size-available').attr('available') != 'false') {\n                displayMessageAndChangeIcon(data, btn, shouldAdd);\n            }\n\n            $('body').trigger('wishlist:changedSuccessfully', {\n                data: data,\n                isAdding: shouldAdd,\n                pid: pid\n            });\n            var $productContainer = $(e.currentTarget).closest('.product-detail');\n\n            if (!$productContainer.length) {\n                $productContainer = $(e.currentTarget).closest('.quickview-modal').find('.product-detail');\n            }\n\n            if (!$productContainer.length) {\n                $productContainer = $('.quickview-modal').find('.product-detail');\n            }\n\n            if (!$productContainer.length) {\n                $productContainer = $('.product-detail');\n            }\n            if (shouldAdd) {\n                $('body').trigger('product:afterAddToWishlist', { ...data, $productContainer });\n            } else {\n                $('body').trigger('product:afterRemoveFromWishlist');\n            }\n            $('body').trigger('wishlist:update', data.wishlistTotal);\n\n            $.spinner().stop();\n        },\n        error: function (err) {\n            $.spinner().stop();\n            $('body').trigger('product:failedAddToWishlist');\n            displayMessageAndChangeIcon(err, btn, shouldAdd);\n        }\n    });\n}\n\nfunction updateAriaLabelForWishlistLink (product) {\n    var added = $(product).hasClass('added');\n    var labelAddWishlist = product.data('label-add-wishlist');\n    var labelRemoveWishlist = product.data('label-remove-wishlist');\n    if (added) {\n        product.attr('aria-label', labelRemoveWishlist);\n    } else {\n        product.attr('aria-label', labelAddWishlist);\n    }\n}\n\nmodule.exports = {\n    handleWishlistContainer: function (item) {\n        if (module.exports.checkItemInWishlist(item)) {\n            $('.wishlist-icon').addClass('added');\n            $('.wishlist-icon').find('use').attr('href', $('.wishlist-icon').data('full-heart'));\n        } else {\n            $('.wishlist-icon').removeClass('added');\n            $('.wishlist-icon').find('use').attr('href', $('.wishlist-icon').data('empty-heart'));\n        }\n        updateAriaLabelForWishlistLink($('.wishlist-icon'));\n    },\n\n    checkItemInWishlist: function (itemCode) {\n        return $('#wishlistItems').length > 0 && $('#wishlistItems').val().split(',').indexOf(itemCode) > -1;\n    },\n\n    /**\n     * Add the `added' class to the wishlist icon if the item is available in the wishlist.\n     * It is not possible to do it in ISML because both the PDP and the PLP are cached\n     *\n     * Read the DOM element `#wishlistItems` and adds the `added` class to all the\n     * `plp-wishlist` or `add-to-wish-list` items available in>\n     *  - quickview\n     *  - PDP\n     *  - PLP\n     */\n    highlightIconsForAllItemsInWishlist: function () {\n        if (!$('#wishlistItems').length) {\n            return;\n        }\n\n        var itemsInWishlist = $('#wishlistItems').val().split(',');\n        for (var i = 0; i < itemsInWishlist.length; i++) {\n            var itemCode = itemsInWishlist[i];\n\n            let plpWishlist = $(`.product[data-pid=\"${itemCode}\"] .plp-wishlist`);\n            let productDetailWishlist = $(`.product-detail[data-pid=\"${itemCode}\"] .add-to-wish-list`);\n\n            plpWishlist.addClass('added');\n            updateAriaLabelForWishlistLink(plpWishlist);\n            plpWishlist.find('use').attr('xlink:href', plpWishlist.data('full-heart'));\n            plpWishlist.blur();\n\n            productDetailWishlist.addClass('added');\n            updateAriaLabelForWishlistLink(productDetailWishlist);\n            productDetailWishlist.find('use').attr('xlink:href', productDetailWishlist.data('full-heart'));\n            productDetailWishlist.blur();\n        }\n    },\n\n    moveToWishlistHelper: function (e) {\n        if (!e) {\n            return;\n        }\n        e.preventDefault();\n\n        var $btn = $(e.currentTarget);\n        var url = $btn.data('href');\n        var pid = $btn.data('pid');\n\n        $.spinner().start();\n        return $.ajax({\n            url: url,\n            type: 'post',\n            dataType: 'json',\n            data: {\n                pid: pid,\n                optionId: null,\n                optionVal: null\n            },\n            success: function (data) {\n                displayMessageAndChangeIcon(data, null);\n            },\n            error: function (err) {\n                displayMessageAndChangeIcon(err, null);\n            }\n        });\n    },\n\n\n    moveToWishlistHelperSaveForLater: function (e) {\n        if (!e) {\n            return;\n        }\n        e.preventDefault();\n\n        var $btn = $(e.currentTarget);\n        var url = $btn.data('href');\n        var pid = $btn.data('pid');\n\n        $.spinner().start();\n        return $.ajax({\n            url: url,\n            type: 'post',\n            dataType: 'json',\n            data: {\n                pid: pid,\n                optionId: null,\n                optionVal: null\n            },\n            success: function (data) {\n                //displayMessageAndChangeIcon(data, null);\n            },\n            error: function (err) {\n                displayMessageAndChangeIcon(err, null);\n            }\n        });\n    },\n\n    /**\n     * Adds the current item referenced by the current target to the wishlist\n     * and updates the front-end\n     */\n    addToWishlist () {\n        $('body').on('click', '.add-to-wish-list', (e) => {\n            e.preventDefault();\n            let target = $(e.currentTarget);\n            // Simulate disabled button with class to allow click and event\n            if (($(e.currentTarget).hasClass('add-to-wish-list-quickview-mobile') && !isSizeSelected()) || ($(e.currentTarget).hasClass('wishlistButtMobile') && !$('.pdp-buy-look-container').hasClass('hidden'))) {\n                return;\n            } else if (!isSizeSelected()) {\n                // If no size is selected, open modal to choose one\n                if (target.closest('.product-quickview').length) {\n                    this.sizeModal = newModalFromSelector('fis-select-size-wishlist', false, ['js-prod-select-size-modal']);\n                    this.sizeModal.open();\n\n                    $(this.sizeModal.modalBox).find('.add-to-wish-list-confirm').attr('disabled', true);\n\n                    $(this.sizeModal.modalBox)\n                        .on('click', '.modal__closeIcon', (e) => {\n                            this.sizeModal.close();\n                            this.sizeModal.destroy();\n                        })\n                        .on('click', '.size-selector', (e) => {\n                            const $clickedButton = $(e.currentTarget);\n                            const sizeValue = $clickedButton.data('size-fixed');\n                            $clickedButton.closest('ul').find('button').not(e.currentTarget).removeClass('selected');\n                            $clickedButton.addClass('selected');\n\n                            const $inputToClick = $('[data-attr=\"size\"] input').filter(`[data-size-fixed=\"${sizeValue}\"]`);\n\n                            if ($clickedButton.data('attr-selectable') === 'selectable' && $inputToClick.prop('disabled') === false) {\n                                // Select size in PDP by passing click to attribute selector click only if selectable\n                                $inputToClick.trigger('click');\n                                $(this.sizeModal.modalBox).find('.add-to-wish-list-confirm').prop('disabled', false);\n                                $('.size-available').attr('available', true);\n                            } else {\n                                // Only if the size is not available\n                                let infoURL = $clickedButton.data('attr-info-url');\n                                if ($('.product-quickview').length > 0) {\n                                    $('.product-quickview').find('.wishlist-icon').removeClass('added');\n                                    $('.product-quickview').find('.wishlist-icon').find('use').attr('xlink:href', $('.wishlist-icon').data('empty-heart'));\n                                }\n                                var _self = this;\n                                $.spinner().start();\n                                $.ajax({\n                                    url: infoURL,\n                                    type: 'get',\n                                    dataType: 'json',\n                                    success: function (data) {\n                                        $(_self.sizeModal.modalBox)\n                                            .find('.add-to-wish-list-confirm')\n                                            .prop('disabled', !data.product.readyToOrder);\n                                        $('.product-detail-keeper').attr('data-variant-pid', encodeURIComponent(data.product.id));\n                                        $('.product-detail').data('pid', data.product.id);\n                                        $('.size-available').attr('available', false);\n                                        $.spinner().stop();\n                                    },\n                                    error: function () {\n                                        $.spinner().stop();\n                                    }\n                                });\n                            }\n                        });\n\n                    $(this.sizeModal.modalBox).on('click', '.add-to-wish-list-confirm', (e) => {\n                        // Add to wishlist definitely\n                        let pid = null;\n                        if ($('.product-detail')) {\n                            pid = $('.product-detail').data('pid');\n                        } else if ($('.product-quickview')) {\n                            pid = $('.product-quickview').data('pid');\n                        }\n                        addDefinitelyToWishlist(target, pid, e);\n                    });\n\n                    $('body').on('product:afterAddToWishlist', (e) => {\n                        if (this.sizeModal.modal) {\n                            this.sizeModal.close();\n                            this.sizeModal.destroy();\n                        }\n                    });\n\n                    $('body').on('product:failedAddToWishlist', (e) => {\n                        if (this.sizeModal.modal) {\n                            this.sizeModal.close();\n                            this.sizeModal.destroy();\n                        }\n                    });\n                } else {\n                    sizePanel.openSizePanel(sizePanel.Types.WISHILIST);\n                    $('.pdp-size-box .js-sizeBox-openPanel').addClass('cc-sizeBox-openPanel_error');\n                }\n                return;\n            }\n            addDefinitelyToWishlist(target, null, e);\n        });\n\n        $('body').on('wishlist:add-pid', (_, d) => {\n            const target = $('.add-to-wish-list').eq(0);\n            addDefinitelyToWishlist(target, d.pid, {currentTarget: target});\n        });\n    }\n};\n","/* build: `node build.js modules=ALL exclude=gestures,accessors requirejs minifier=uglifyjs` */\n/*! Fabric.js Copyright 2008-2015, Printio (Juriy Zaytsev, Maxim Chernyak) */\n\nvar fabric = fabric || { version: '3.6.6' };\nif (typeof exports !== 'undefined') {\n  exports.fabric = fabric;\n}\n/* _AMD_START_ */\nelse if (typeof define === 'function' && define.amd) {\n  define([], function() { return fabric; });\n}\n/* _AMD_END_ */\nif (typeof document !== 'undefined' && typeof window !== 'undefined') {\n  if (document instanceof (typeof HTMLDocument !== 'undefined' ? HTMLDocument : Document)) {\n    fabric.document = document;\n  }\n  else {\n    fabric.document = document.implementation.createHTMLDocument('');\n  }\n  fabric.window = window;\n}\nelse {\n  // assume we're running under node.js when document/window are not present\n  var jsdom = require('jsdom');\n  var virtualWindow = new jsdom.JSDOM(\n    decodeURIComponent('%3C!DOCTYPE%20html%3E%3Chtml%3E%3Chead%3E%3C%2Fhead%3E%3Cbody%3E%3C%2Fbody%3E%3C%2Fhtml%3E'),\n    {\n      features: {\n        FetchExternalResources: ['img']\n      },\n      resources: 'usable'\n    }).window;\n  fabric.document = virtualWindow.document;\n  fabric.jsdomImplForWrapper = require('jsdom/lib/jsdom/living/generated/utils').implForWrapper;\n  fabric.nodeCanvas = require('jsdom/lib/jsdom/utils').Canvas;\n  fabric.window = virtualWindow;\n  DOMParser = fabric.window.DOMParser;\n}\n\n/**\n * True when in environment that supports touch events\n * @type boolean\n */\nfabric.isTouchSupported = 'ontouchstart' in fabric.window || 'ontouchstart' in fabric.document ||\n  (fabric.window && fabric.window.navigator && fabric.window.navigator.maxTouchPoints > 0);\n\n/**\n * True when in environment that's probably Node.js\n * @type boolean\n */\nfabric.isLikelyNode = typeof Buffer !== 'undefined' &&\n                      typeof window === 'undefined';\n\n/* _FROM_SVG_START_ */\n/**\n * Attributes parsed from all SVG elements\n * @type array\n */\nfabric.SHARED_ATTRIBUTES = [\n  'display',\n  'transform',\n  'fill', 'fill-opacity', 'fill-rule',\n  'opacity',\n  'stroke', 'stroke-dasharray', 'stroke-linecap', 'stroke-dashoffset',\n  'stroke-linejoin', 'stroke-miterlimit',\n  'stroke-opacity', 'stroke-width',\n  'id', 'paint-order', 'vector-effect',\n  'instantiated_by_use', 'clip-path'\n];\n/* _FROM_SVG_END_ */\n\n/**\n * Pixel per Inch as a default value set to 96. Can be changed for more realistic conversion.\n */\nfabric.DPI = 96;\nfabric.reNum = '(?:[-+]?(?:\\\\d+|\\\\d*\\\\.\\\\d+)(?:[eE][-+]?\\\\d+)?)';\nfabric.rePathCommand = /([-+]?((\\d+\\.\\d+)|((\\d+)|(\\.\\d+)))(?:[eE][-+]?\\d+)?)/ig;\nfabric.reNonWord = /[ \\n\\.,;!\\?\\-]/;\nfabric.fontPaths = { };\nfabric.iMatrix = [1, 0, 0, 1, 0, 0];\nfabric.svgNS = 'http://www.w3.org/2000/svg';\n\n/**\n * Pixel limit for cache canvases. 1Mpx , 4Mpx should be fine.\n * @since 1.7.14\n * @type Number\n * @default\n */\nfabric.perfLimitSizeTotal = 2097152;\n\n/**\n * Pixel limit for cache canvases width or height. IE fixes the maximum at 5000\n * @since 1.7.14\n * @type Number\n * @default\n */\nfabric.maxCacheSideLimit = 4096;\n\n/**\n * Lowest pixel limit for cache canvases, set at 256PX\n * @since 1.7.14\n * @type Number\n * @default\n */\nfabric.minCacheSideLimit = 256;\n\n/**\n * Cache Object for widths of chars in text rendering.\n */\nfabric.charWidthsCache = { };\n\n/**\n * if webgl is enabled and available, textureSize will determine the size\n * of the canvas backend\n * @since 2.0.0\n * @type Number\n * @default\n */\nfabric.textureSize = 2048;\n\n/**\n * When 'true', style information is not retained when copy/pasting text, making\n * pasted text use destination style.\n * Defaults to 'false'.\n * @type Boolean\n * @default\n */\nfabric.disableStyleCopyPaste = false;\n\n/**\n * Enable webgl for filtering picture is available\n * A filtering backend will be initialized, this will both take memory and\n * time since a default 2048x2048 canvas will be created for the gl context\n * @since 2.0.0\n * @type Boolean\n * @default\n */\nfabric.enableGLFiltering = true;\n\n/**\n * Device Pixel Ratio\n * @see https://developer.apple.com/library/safari/documentation/AudioVideo/Conceptual/HTML-canvas-guide/SettingUptheCanvas/SettingUptheCanvas.html\n */\nfabric.devicePixelRatio = fabric.window.devicePixelRatio ||\n                          fabric.window.webkitDevicePixelRatio ||\n                          fabric.window.mozDevicePixelRatio ||\n                          1;\n/**\n * Browser-specific constant to adjust CanvasRenderingContext2D.shadowBlur value,\n * which is unitless and not rendered equally across browsers.\n *\n * Values that work quite well (as of October 2017) are:\n * - Chrome: 1.5\n * - Edge: 1.75\n * - Firefox: 0.9\n * - Safari: 0.95\n *\n * @since 2.0.0\n * @type Number\n * @default 1\n */\nfabric.browserShadowBlurConstant = 1;\n\n/**\n * This object contains the result of arc to beizer conversion for faster retrieving if the same arc needs to be converted again.\n * It was an internal variable, is accessible since version 2.3.4\n */\nfabric.arcToSegmentsCache = { };\n\n/**\n * This object keeps the results of the boundsOfCurve calculation mapped by the joined arguments necessary to calculate it.\n * It does speed up calculation, if you parse and add always the same paths, but in case of heavy usage of freedrawing\n * you do not get any speed benefit and you get a big object in memory.\n * The object was a private variable before, while now is appended to the lib so that you have access to it and you\n * can eventually clear it.\n * It was an internal variable, is accessible since version 2.3.4\n */\nfabric.boundsOfCurveCache = { };\n\n/**\n * If disabled boundsOfCurveCache is not used. For apps that make heavy usage of pencil drawing probably disabling it is better\n * @default true\n */\nfabric.cachesBoundsOfCurve = true;\n\n/**\n * Skip performance testing of setupGLContext and force the use of putImageData that seems to be the one that works best on\n * Chrome + old hardware. if your users are experiencing empty images after filtering you may try to force this to true\n * this has to be set before instantiating the filtering backend ( before filtering the first image )\n * @type Boolean\n * @default false\n */\nfabric.forceGLPutImageData = false;\n\nfabric.initFilterBackend = function() {\n  if (fabric.enableGLFiltering && fabric.isWebglSupported && fabric.isWebglSupported(fabric.textureSize)) {\n    console.log('max texture size: ' + fabric.maxTextureSize);\n    return (new fabric.WebglFilterBackend({ tileSize: fabric.textureSize }));\n  }\n  else if (fabric.Canvas2dFilterBackend) {\n    return (new fabric.Canvas2dFilterBackend());\n  }\n};\n\n\nif (typeof document !== 'undefined' && typeof window !== 'undefined') {\n  // ensure globality even if entire library were function wrapped (as in Meteor.js packaging system)\n  window.fabric = fabric;\n}\n\n\n(function() {\n\n  /**\n   * @private\n   * @param {String} eventName\n   * @param {Function} handler\n   */\n  function _removeEventListener(eventName, handler) {\n    if (!this.__eventListeners[eventName]) {\n      return;\n    }\n    var eventListener = this.__eventListeners[eventName];\n    if (handler) {\n      eventListener[eventListener.indexOf(handler)] = false;\n    }\n    else {\n      fabric.util.array.fill(eventListener, false);\n    }\n  }\n\n  /**\n   * Observes specified event\n   * @deprecated `observe` deprecated since 0.8.34 (use `on` instead)\n   * @memberOf fabric.Observable\n   * @alias on\n   * @param {String|Object} eventName Event name (eg. 'after:render') or object with key/value pairs (eg. {'after:render': handler, 'selection:cleared': handler})\n   * @param {Function} handler Function that receives a notification when an event of the specified type occurs\n   * @return {Self} thisArg\n   * @chainable\n   */\n  function observe(eventName, handler) {\n    if (!this.__eventListeners) {\n      this.__eventListeners = { };\n    }\n    // one object with key/value pairs was passed\n    if (arguments.length === 1) {\n      for (var prop in eventName) {\n        this.on(prop, eventName[prop]);\n      }\n    }\n    else {\n      if (!this.__eventListeners[eventName]) {\n        this.__eventListeners[eventName] = [];\n      }\n      this.__eventListeners[eventName].push(handler);\n    }\n    return this;\n  }\n\n  /**\n   * Stops event observing for a particular event handler. Calling this method\n   * without arguments removes all handlers for all events\n   * @deprecated `stopObserving` deprecated since 0.8.34 (use `off` instead)\n   * @memberOf fabric.Observable\n   * @alias off\n   * @param {String|Object} eventName Event name (eg. 'after:render') or object with key/value pairs (eg. {'after:render': handler, 'selection:cleared': handler})\n   * @param {Function} handler Function to be deleted from EventListeners\n   * @return {Self} thisArg\n   * @chainable\n   */\n  function stopObserving(eventName, handler) {\n    if (!this.__eventListeners) {\n      return this;\n    }\n\n    // remove all key/value pairs (event name -> event handler)\n    if (arguments.length === 0) {\n      for (eventName in this.__eventListeners) {\n        _removeEventListener.call(this, eventName);\n      }\n    }\n    // one object with key/value pairs was passed\n    else if (arguments.length === 1 && typeof arguments[0] === 'object') {\n      for (var prop in eventName) {\n        _removeEventListener.call(this, prop, eventName[prop]);\n      }\n    }\n    else {\n      _removeEventListener.call(this, eventName, handler);\n    }\n    return this;\n  }\n\n  /**\n   * Fires event with an optional options object\n   * @deprecated `fire` deprecated since 1.0.7 (use `trigger` instead)\n   * @memberOf fabric.Observable\n   * @alias trigger\n   * @param {String} eventName Event name to fire\n   * @param {Object} [options] Options object\n   * @return {Self} thisArg\n   * @chainable\n   */\n  function fire(eventName, options) {\n    if (!this.__eventListeners) {\n      return this;\n    }\n\n    var listenersForEvent = this.__eventListeners[eventName];\n    if (!listenersForEvent) {\n      return this;\n    }\n\n    for (var i = 0, len = listenersForEvent.length; i < len; i++) {\n      listenersForEvent[i] && listenersForEvent[i].call(this, options || { });\n    }\n    this.__eventListeners[eventName] = listenersForEvent.filter(function(value) {\n      return value !== false;\n    });\n    return this;\n  }\n\n  /**\n   * @namespace fabric.Observable\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#events}\n   * @see {@link http://fabricjs.com/events|Events demo}\n   */\n  fabric.Observable = {\n    observe: observe,\n    stopObserving: stopObserving,\n    fire: fire,\n\n    on: observe,\n    off: stopObserving,\n    trigger: fire\n  };\n})();\n\n\n/**\n * @namespace fabric.Collection\n */\nfabric.Collection = {\n\n  _objects: [],\n\n  /**\n   * Adds objects to collection, Canvas or Group, then renders canvas\n   * (if `renderOnAddRemove` is not `false`).\n   * in case of Group no changes to bounding box are made.\n   * Objects should be instances of (or inherit from) fabric.Object\n   * Use of this function is highly discouraged for groups.\n   * you can add a bunch of objects with the add method but then you NEED\n   * to run a addWithUpdate call for the Group class or position/bbox will be wrong.\n   * @param {...fabric.Object} object Zero or more fabric instances\n   * @return {Self} thisArg\n   * @chainable\n   */\n  add: function () {\n    this._objects.push.apply(this._objects, arguments);\n    if (this._onObjectAdded) {\n      for (var i = 0, length = arguments.length; i < length; i++) {\n        this._onObjectAdded(arguments[i]);\n      }\n    }\n    this.renderOnAddRemove && this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Inserts an object into collection at specified index, then renders canvas (if `renderOnAddRemove` is not `false`)\n   * An object should be an instance of (or inherit from) fabric.Object\n   * Use of this function is highly discouraged for groups.\n   * you can add a bunch of objects with the insertAt method but then you NEED\n   * to run a addWithUpdate call for the Group class or position/bbox will be wrong.\n   * @param {Object} object Object to insert\n   * @param {Number} index Index to insert object at\n   * @param {Boolean} nonSplicing When `true`, no splicing (shifting) of objects occurs\n   * @return {Self} thisArg\n   * @chainable\n   */\n  insertAt: function (object, index, nonSplicing) {\n    var objects = this._objects;\n    if (nonSplicing) {\n      objects[index] = object;\n    }\n    else {\n      objects.splice(index, 0, object);\n    }\n    this._onObjectAdded && this._onObjectAdded(object);\n    this.renderOnAddRemove && this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Removes objects from a collection, then renders canvas (if `renderOnAddRemove` is not `false`)\n   * @param {...fabric.Object} object Zero or more fabric instances\n   * @return {Self} thisArg\n   * @chainable\n   */\n  remove: function() {\n    var objects = this._objects,\n        index, somethingRemoved = false;\n\n    for (var i = 0, length = arguments.length; i < length; i++) {\n      index = objects.indexOf(arguments[i]);\n\n      // only call onObjectRemoved if an object was actually removed\n      if (index !== -1) {\n        somethingRemoved = true;\n        objects.splice(index, 1);\n        this._onObjectRemoved && this._onObjectRemoved(arguments[i]);\n      }\n    }\n\n    this.renderOnAddRemove && somethingRemoved && this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Executes given function for each object in this group\n   * @param {Function} callback\n   *                   Callback invoked with current object as first argument,\n   *                   index - as second and an array of all objects - as third.\n   *                   Callback is invoked in a context of Global Object (e.g. `window`)\n   *                   when no `context` argument is given\n   *\n   * @param {Object} context Context (aka thisObject)\n   * @return {Self} thisArg\n   * @chainable\n   */\n  forEachObject: function(callback, context) {\n    var objects = this.getObjects();\n    for (var i = 0, len = objects.length; i < len; i++) {\n      callback.call(context, objects[i], i, objects);\n    }\n    return this;\n  },\n\n  /**\n   * Returns an array of children objects of this instance\n   * Type parameter introduced in 1.3.10\n   * since 2.3.5 this method return always a COPY of the array;\n   * @param {String} [type] When specified, only objects of this type are returned\n   * @return {Array}\n   */\n  getObjects: function(type) {\n    if (typeof type === 'undefined') {\n      return this._objects.concat();\n    }\n    return this._objects.filter(function(o) {\n      return o.type === type;\n    });\n  },\n\n  /**\n   * Returns object at specified index\n   * @param {Number} index\n   * @return {Self} thisArg\n   */\n  item: function (index) {\n    return this._objects[index];\n  },\n\n  /**\n   * Returns true if collection contains no objects\n   * @return {Boolean} true if collection is empty\n   */\n  isEmpty: function () {\n    return this._objects.length === 0;\n  },\n\n  /**\n   * Returns a size of a collection (i.e: length of an array containing its objects)\n   * @return {Number} Collection size\n   */\n  size: function() {\n    return this._objects.length;\n  },\n\n  /**\n   * Returns true if collection contains an object\n   * @param {Object} object Object to check against\n   * @return {Boolean} `true` if collection contains an object\n   */\n  contains: function(object) {\n    return this._objects.indexOf(object) > -1;\n  },\n\n  /**\n   * Returns number representation of a collection complexity\n   * @return {Number} complexity\n   */\n  complexity: function () {\n    return this._objects.reduce(function (memo, current) {\n      memo += current.complexity ? current.complexity() : 0;\n      return memo;\n    }, 0);\n  }\n};\n\n\n/**\n * @namespace fabric.CommonMethods\n */\nfabric.CommonMethods = {\n\n  /**\n   * Sets object's properties from options\n   * @param {Object} [options] Options object\n   */\n  _setOptions: function(options) {\n    for (var prop in options) {\n      this.set(prop, options[prop]);\n    }\n  },\n\n  /**\n   * @private\n   * @param {Object} [filler] Options object\n   * @param {String} [property] property to set the Gradient to\n   */\n  _initGradient: function(filler, property) {\n    if (filler && filler.colorStops && !(filler instanceof fabric.Gradient)) {\n      this.set(property, new fabric.Gradient(filler));\n    }\n  },\n\n  /**\n   * @private\n   * @param {Object} [filler] Options object\n   * @param {String} [property] property to set the Pattern to\n   * @param {Function} [callback] callback to invoke after pattern load\n   */\n  _initPattern: function(filler, property, callback) {\n    if (filler && filler.source && !(filler instanceof fabric.Pattern)) {\n      this.set(property, new fabric.Pattern(filler, callback));\n    }\n    else {\n      callback && callback();\n    }\n  },\n\n  /**\n   * @private\n   * @param {Object} [options] Options object\n   */\n  _initClipping: function(options) {\n    if (!options.clipTo || typeof options.clipTo !== 'string') {\n      return;\n    }\n\n    var functionBody = fabric.util.getFunctionBody(options.clipTo);\n    if (typeof functionBody !== 'undefined') {\n      this.clipTo = new Function('ctx', functionBody);\n    }\n  },\n\n  /**\n   * @private\n   */\n  _setObject: function(obj) {\n    for (var prop in obj) {\n      this._set(prop, obj[prop]);\n    }\n  },\n\n  /**\n   * Sets property to a given value. When changing position/dimension -related properties (left, top, scale, angle, etc.) `set` does not update position of object's borders/controls. If you need to update those, call `setCoords()`.\n   * @param {String|Object} key Property name or object (if object, iterate over the object properties)\n   * @param {Object|Function} value Property value (if function, the value is passed into it and its return value is used as a new one)\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  set: function(key, value) {\n    if (typeof key === 'object') {\n      this._setObject(key);\n    }\n    else {\n      if (typeof value === 'function' && key !== 'clipTo') {\n        this._set(key, value(this.get(key)));\n      }\n      else {\n        this._set(key, value);\n      }\n    }\n    return this;\n  },\n\n  _set: function(key, value) {\n    this[key] = value;\n  },\n\n  /**\n   * Toggles specified property from `true` to `false` or from `false` to `true`\n   * @param {String} property Property to toggle\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  toggle: function(property) {\n    var value = this.get(property);\n    if (typeof value === 'boolean') {\n      this.set(property, !value);\n    }\n    return this;\n  },\n\n  /**\n   * Basic getter\n   * @param {String} property Property name\n   * @return {*} value of a property\n   */\n  get: function(property) {\n    return this[property];\n  }\n};\n\n\n(function(global) {\n\n  var sqrt = Math.sqrt,\n      atan2 = Math.atan2,\n      pow = Math.pow,\n      PiBy180 = Math.PI / 180,\n      PiBy2 = Math.PI / 2;\n\n  /**\n   * @namespace fabric.util\n   */\n  fabric.util = {\n\n    /**\n     * Calculate the cos of an angle, avoiding returning floats for known results\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} angle the angle in radians or in degree\n     * @return {Number}\n     */\n    cos: function(angle) {\n      if (angle === 0) { return 1; }\n      if (angle < 0) {\n        // cos(a) = cos(-a)\n        angle = -angle;\n      }\n      var angleSlice = angle / PiBy2;\n      switch (angleSlice) {\n        case 1: case 3: return 0;\n        case 2: return -1;\n      }\n      return Math.cos(angle);\n    },\n\n    /**\n     * Calculate the sin of an angle, avoiding returning floats for known results\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} angle the angle in radians or in degree\n     * @return {Number}\n     */\n    sin: function(angle) {\n      if (angle === 0) { return 0; }\n      var angleSlice = angle / PiBy2, sign = 1;\n      if (angle < 0) {\n        // sin(-a) = -sin(a)\n        sign = -1;\n      }\n      switch (angleSlice) {\n        case 1: return sign;\n        case 2: return 0;\n        case 3: return -sign;\n      }\n      return Math.sin(angle);\n    },\n\n    /**\n     * Removes value from an array.\n     * Presence of value (and its position in an array) is determined via `Array.prototype.indexOf`\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} array\n     * @param {*} value\n     * @return {Array} original array\n     */\n    removeFromArray: function(array, value) {\n      var idx = array.indexOf(value);\n      if (idx !== -1) {\n        array.splice(idx, 1);\n      }\n      return array;\n    },\n\n    /**\n     * Returns random number between 2 specified ones.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} min lower limit\n     * @param {Number} max upper limit\n     * @return {Number} random value (between min and max)\n     */\n    getRandomInt: function(min, max) {\n      return Math.floor(Math.random() * (max - min + 1)) + min;\n    },\n\n    /**\n     * Transforms degrees to radians.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} degrees value in degrees\n     * @return {Number} value in radians\n     */\n    degreesToRadians: function(degrees) {\n      return degrees * PiBy180;\n    },\n\n    /**\n     * Transforms radians to degrees.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} radians value in radians\n     * @return {Number} value in degrees\n     */\n    radiansToDegrees: function(radians) {\n      return radians / PiBy180;\n    },\n\n    /**\n     * Rotates `point` around `origin` with `radians`\n     * @static\n     * @memberOf fabric.util\n     * @param {fabric.Point} point The point to rotate\n     * @param {fabric.Point} origin The origin of the rotation\n     * @param {Number} radians The radians of the angle for the rotation\n     * @return {fabric.Point} The new rotated point\n     */\n    rotatePoint: function(point, origin, radians) {\n      point.subtractEquals(origin);\n      var v = fabric.util.rotateVector(point, radians);\n      return new fabric.Point(v.x, v.y).addEquals(origin);\n    },\n\n    /**\n     * Rotates `vector` with `radians`\n     * @static\n     * @memberOf fabric.util\n     * @param {Object} vector The vector to rotate (x and y)\n     * @param {Number} radians The radians of the angle for the rotation\n     * @return {Object} The new rotated point\n     */\n    rotateVector: function(vector, radians) {\n      var sin = fabric.util.sin(radians),\n          cos = fabric.util.cos(radians),\n          rx = vector.x * cos - vector.y * sin,\n          ry = vector.x * sin + vector.y * cos;\n      return {\n        x: rx,\n        y: ry\n      };\n    },\n\n    /**\n     * Apply transform t to point p\n     * @static\n     * @memberOf fabric.util\n     * @param  {fabric.Point} p The point to transform\n     * @param  {Array} t The transform\n     * @param  {Boolean} [ignoreOffset] Indicates that the offset should not be applied\n     * @return {fabric.Point} The transformed point\n     */\n    transformPoint: function(p, t, ignoreOffset) {\n      if (ignoreOffset) {\n        return new fabric.Point(\n          t[0] * p.x + t[2] * p.y,\n          t[1] * p.x + t[3] * p.y\n        );\n      }\n      return new fabric.Point(\n        t[0] * p.x + t[2] * p.y + t[4],\n        t[1] * p.x + t[3] * p.y + t[5]\n      );\n    },\n\n    /**\n     * Returns coordinates of points's bounding rectangle (left, top, width, height)\n     * @param {Array} points 4 points array\n     * @param {Array} [transform] an array of 6 numbers representing a 2x3 transform matrix\n     * @return {Object} Object with left, top, width, height properties\n     */\n    makeBoundingBoxFromPoints: function(points, transform) {\n      if (transform) {\n        for (var i = 0; i < points.length; i++) {\n          points[i] = fabric.util.transformPoint(points[i], transform);\n        }\n      }\n      var xPoints = [points[0].x, points[1].x, points[2].x, points[3].x],\n          minX = fabric.util.array.min(xPoints),\n          maxX = fabric.util.array.max(xPoints),\n          width = maxX - minX,\n          yPoints = [points[0].y, points[1].y, points[2].y, points[3].y],\n          minY = fabric.util.array.min(yPoints),\n          maxY = fabric.util.array.max(yPoints),\n          height = maxY - minY;\n\n      return {\n        left: minX,\n        top: minY,\n        width: width,\n        height: height\n      };\n    },\n\n    /**\n     * Invert transformation t\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} t The transform\n     * @return {Array} The inverted transform\n     */\n    invertTransform: function(t) {\n      var a = 1 / (t[0] * t[3] - t[1] * t[2]),\n          r = [a * t[3], -a * t[1], -a * t[2], a * t[0]],\n          o = fabric.util.transformPoint({ x: t[4], y: t[5] }, r, true);\n      r[4] = -o.x;\n      r[5] = -o.y;\n      return r;\n    },\n\n    /**\n     * A wrapper around Number#toFixed, which contrary to native method returns number, not string.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number|String} number number to operate on\n     * @param {Number} fractionDigits number of fraction digits to \"leave\"\n     * @return {Number}\n     */\n    toFixed: function(number, fractionDigits) {\n      return parseFloat(Number(number).toFixed(fractionDigits));\n    },\n\n    /**\n     * Converts from attribute value to pixel value if applicable.\n     * Returns converted pixels or original value not converted.\n     * @param {Number|String} value number to operate on\n     * @param {Number} fontSize\n     * @return {Number|String}\n     */\n    parseUnit: function(value, fontSize) {\n      var unit = /\\D{0,2}$/.exec(value),\n          number = parseFloat(value);\n      if (!fontSize) {\n        fontSize = fabric.Text.DEFAULT_SVG_FONT_SIZE;\n      }\n      switch (unit[0]) {\n        case 'mm':\n          return number * fabric.DPI / 25.4;\n\n        case 'cm':\n          return number * fabric.DPI / 2.54;\n\n        case 'in':\n          return number * fabric.DPI;\n\n        case 'pt':\n          return number * fabric.DPI / 72; // or * 4 / 3\n\n        case 'pc':\n          return number * fabric.DPI / 72 * 12; // or * 16\n\n        case 'em':\n          return number * fontSize;\n\n        default:\n          return number;\n      }\n    },\n\n    /**\n     * Function which always returns `false`.\n     * @static\n     * @memberOf fabric.util\n     * @return {Boolean}\n     */\n    falseFunction: function() {\n      return false;\n    },\n\n    /**\n     * Returns klass \"Class\" object of given namespace\n     * @memberOf fabric.util\n     * @param {String} type Type of object (eg. 'circle')\n     * @param {String} namespace Namespace to get klass \"Class\" object from\n     * @return {Object} klass \"Class\"\n     */\n    getKlass: function(type, namespace) {\n      // capitalize first letter only\n      type = fabric.util.string.camelize(type.charAt(0).toUpperCase() + type.slice(1));\n      return fabric.util.resolveNamespace(namespace)[type];\n    },\n\n    /**\n     * Returns array of attributes for given svg that fabric parses\n     * @memberOf fabric.util\n     * @param {String} type Type of svg element (eg. 'circle')\n     * @return {Array} string names of supported attributes\n     */\n    getSvgAttributes: function(type) {\n      var attributes = [\n        'instantiated_by_use',\n        'style',\n        'id',\n        'class'\n      ];\n      switch (type) {\n        case 'linearGradient':\n          attributes = attributes.concat(['x1', 'y1', 'x2', 'y2', 'gradientUnits', 'gradientTransform']);\n          break;\n        case 'radialGradient':\n          attributes = attributes.concat(['gradientUnits', 'gradientTransform', 'cx', 'cy', 'r', 'fx', 'fy', 'fr']);\n          break;\n        case 'stop':\n          attributes = attributes.concat(['offset', 'stop-color', 'stop-opacity']);\n          break;\n      }\n      return attributes;\n    },\n\n    /**\n     * Returns object of given namespace\n     * @memberOf fabric.util\n     * @param {String} namespace Namespace string e.g. 'fabric.Image.filter' or 'fabric'\n     * @return {Object} Object for given namespace (default fabric)\n     */\n    resolveNamespace: function(namespace) {\n      if (!namespace) {\n        return fabric;\n      }\n\n      var parts = namespace.split('.'),\n          len = parts.length, i,\n          obj = global || fabric.window;\n\n      for (i = 0; i < len; ++i) {\n        obj = obj[parts[i]];\n      }\n\n      return obj;\n    },\n\n    /**\n     * Loads image element from given url and passes it to a callback\n     * @memberOf fabric.util\n     * @param {String} url URL representing an image\n     * @param {Function} callback Callback; invoked with loaded image\n     * @param {*} [context] Context to invoke callback in\n     * @param {Object} [crossOrigin] crossOrigin value to set image element to\n     */\n    loadImage: function(url, callback, context, crossOrigin) {\n      if (!url) {\n        callback && callback.call(context, url);\n        return;\n      }\n\n      var img = fabric.util.createImage();\n\n      /** @ignore */\n      var onLoadCallback = function () {\n        callback && callback.call(context, img);\n        img = img.onload = img.onerror = null;\n      };\n\n      img.onload = onLoadCallback;\n      /** @ignore */\n      img.onerror = function() {\n        fabric.log('Error loading ' + img.src);\n        callback && callback.call(context, null, true);\n        img = img.onload = img.onerror = null;\n      };\n\n      // data-urls appear to be buggy with crossOrigin\n      // https://github.com/kangax/fabric.js/commit/d0abb90f1cd5c5ef9d2a94d3fb21a22330da3e0a#commitcomment-4513767\n      // see https://code.google.com/p/chromium/issues/detail?id=315152\n      //     https://bugzilla.mozilla.org/show_bug.cgi?id=935069\n      if (url.indexOf('data') !== 0 && crossOrigin) {\n        img.crossOrigin = crossOrigin;\n      }\n\n      // IE10 / IE11-Fix: SVG contents from data: URI\n      // will only be available if the IMG is present\n      // in the DOM (and visible)\n      if (url.substring(0,14) === 'data:image/svg') {\n        img.onload = null;\n        fabric.util.loadImageInDom(img, onLoadCallback);\n      }\n\n      img.src = url;\n    },\n\n    /**\n     * Attaches SVG image with data: URL to the dom\n     * @memberOf fabric.util\n     * @param {Object} img Image object with data:image/svg src\n     * @param {Function} callback Callback; invoked with loaded image\n     * @return {Object} DOM element (div containing the SVG image)\n     */\n    loadImageInDom: function(img, onLoadCallback) {\n      var div = fabric.document.createElement('div');\n      div.style.width = div.style.height = '1px';\n      div.style.left = div.style.top = '-100%';\n      div.style.position = 'absolute';\n      div.appendChild(img);\n      fabric.document.querySelector('body').appendChild(div);\n      /**\n       * Wrap in function to:\n       *   1. Call existing callback\n       *   2. Cleanup DOM\n       */\n      img.onload = function () {\n        onLoadCallback();\n        div.parentNode.removeChild(div);\n        div = null;\n      };\n    },\n\n    /**\n     * Creates corresponding fabric instances from their object representations\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} objects Objects to enliven\n     * @param {Function} callback Callback to invoke when all objects are created\n     * @param {String} namespace Namespace to get klass \"Class\" object from\n     * @param {Function} reviver Method for further parsing of object elements,\n     * called after each fabric object created.\n     */\n    enlivenObjects: function(objects, callback, namespace, reviver) {\n      objects = objects || [];\n\n      var enlivenedObjects = [],\n          numLoadedObjects = 0,\n          numTotalObjects = objects.length;\n\n      function onLoaded() {\n        if (++numLoadedObjects === numTotalObjects) {\n          callback && callback(enlivenedObjects.filter(function(obj) {\n            // filter out undefined objects (objects that gave error)\n            return obj;\n          }));\n        }\n      }\n\n      if (!numTotalObjects) {\n        callback && callback(enlivenedObjects);\n        return;\n      }\n\n      objects.forEach(function (o, index) {\n        // if sparse array\n        if (!o || !o.type) {\n          onLoaded();\n          return;\n        }\n        var klass = fabric.util.getKlass(o.type, namespace);\n        klass.fromObject(o, function (obj, error) {\n          error || (enlivenedObjects[index] = obj);\n          reviver && reviver(o, obj, error);\n          onLoaded();\n        });\n      });\n    },\n\n    /**\n     * Create and wait for loading of patterns\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} patterns Objects to enliven\n     * @param {Function} callback Callback to invoke when all objects are created\n     * called after each fabric object created.\n     */\n    enlivenPatterns: function(patterns, callback) {\n      patterns = patterns || [];\n\n      function onLoaded() {\n        if (++numLoadedPatterns === numPatterns) {\n          callback && callback(enlivenedPatterns);\n        }\n      }\n\n      var enlivenedPatterns = [],\n          numLoadedPatterns = 0,\n          numPatterns = patterns.length;\n\n      if (!numPatterns) {\n        callback && callback(enlivenedPatterns);\n        return;\n      }\n\n      patterns.forEach(function (p, index) {\n        if (p && p.source) {\n          new fabric.Pattern(p, function(pattern) {\n            enlivenedPatterns[index] = pattern;\n            onLoaded();\n          });\n        }\n        else {\n          enlivenedPatterns[index] = p;\n          onLoaded();\n        }\n      });\n    },\n\n    /**\n     * Groups SVG elements (usually those retrieved from SVG document)\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} elements SVG elements to group\n     * @param {Object} [options] Options object\n     * @param {String} path Value to set sourcePath to\n     * @return {fabric.Object|fabric.Group}\n     */\n    groupSVGElements: function(elements, options, path) {\n      var object;\n      if (elements && elements.length === 1) {\n        return elements[0];\n      }\n      if (options) {\n        if (options.width && options.height) {\n          options.centerPoint = {\n            x: options.width / 2,\n            y: options.height / 2\n          };\n        }\n        else {\n          delete options.width;\n          delete options.height;\n        }\n      }\n      object = new fabric.Group(elements, options);\n      if (typeof path !== 'undefined') {\n        object.sourcePath = path;\n      }\n      return object;\n    },\n\n    /**\n     * Populates an object with properties of another object\n     * @static\n     * @memberOf fabric.util\n     * @param {Object} source Source object\n     * @param {Object} destination Destination object\n     * @return {Array} properties Properties names to include\n     */\n    populateWithProperties: function(source, destination, properties) {\n      if (properties && Object.prototype.toString.call(properties) === '[object Array]') {\n        for (var i = 0, len = properties.length; i < len; i++) {\n          if (properties[i] in source) {\n            destination[properties[i]] = source[properties[i]];\n          }\n        }\n      }\n    },\n\n    /**\n     * Draws a dashed line between two points\n     *\n     * This method is used to draw dashed line around selection area.\n     * See <a href=\"http://stackoverflow.com/questions/4576724/dotted-stroke-in-canvas\">dotted stroke in canvas</a>\n     *\n     * @param {CanvasRenderingContext2D} ctx context\n     * @param {Number} x  start x coordinate\n     * @param {Number} y start y coordinate\n     * @param {Number} x2 end x coordinate\n     * @param {Number} y2 end y coordinate\n     * @param {Array} da dash array pattern\n     */\n    drawDashedLine: function(ctx, x, y, x2, y2, da) {\n      var dx = x2 - x,\n          dy = y2 - y,\n          len = sqrt(dx * dx + dy * dy),\n          rot = atan2(dy, dx),\n          dc = da.length,\n          di = 0,\n          draw = true;\n\n      ctx.save();\n      ctx.translate(x, y);\n      ctx.moveTo(0, 0);\n      ctx.rotate(rot);\n\n      x = 0;\n      while (len > x) {\n        x += da[di++ % dc];\n        if (x > len) {\n          x = len;\n        }\n        ctx[draw ? 'lineTo' : 'moveTo'](x, 0);\n        draw = !draw;\n      }\n\n      ctx.restore();\n    },\n\n    /**\n     * Creates canvas element\n     * @static\n     * @memberOf fabric.util\n     * @return {CanvasElement} initialized canvas element\n     */\n    createCanvasElement: function() {\n      return fabric.document.createElement('canvas');\n    },\n\n    /**\n     * Creates a canvas element that is a copy of another and is also painted\n     * @param {CanvasElement} canvas to copy size and content of\n     * @static\n     * @memberOf fabric.util\n     * @return {CanvasElement} initialized canvas element\n     */\n    copyCanvasElement: function(canvas) {\n      var newCanvas = fabric.util.createCanvasElement();\n      newCanvas.width = canvas.width;\n      newCanvas.height = canvas.height;\n      newCanvas.getContext('2d').drawImage(canvas, 0, 0);\n      return newCanvas;\n    },\n\n    /**\n     * since 2.6.0 moved from canvas instance to utility.\n     * @param {CanvasElement} canvasEl to copy size and content of\n     * @param {String} format 'jpeg' or 'png', in some browsers 'webp' is ok too\n     * @param {Number} quality <= 1 and > 0\n     * @static\n     * @memberOf fabric.util\n     * @return {String} data url\n     */\n    toDataURL: function(canvasEl, format, quality) {\n      return canvasEl.toDataURL('image/' + format, quality);\n    },\n\n    /**\n     * Creates image element (works on client and node)\n     * @static\n     * @memberOf fabric.util\n     * @return {HTMLImageElement} HTML image element\n     */\n    createImage: function() {\n      return fabric.document.createElement('img');\n    },\n\n    /**\n     * @static\n     * @memberOf fabric.util\n     * @deprecated since 2.0.0\n     * @param {fabric.Object} receiver Object implementing `clipTo` method\n     * @param {CanvasRenderingContext2D} ctx Context to clip\n     */\n    clipContext: function(receiver, ctx) {\n      ctx.save();\n      ctx.beginPath();\n      receiver.clipTo(ctx);\n      ctx.clip();\n    },\n\n    /**\n     * Multiply matrix A by matrix B to nest transformations\n     * @static\n     * @memberOf fabric.util\n     * @param  {Array} a First transformMatrix\n     * @param  {Array} b Second transformMatrix\n     * @param  {Boolean} is2x2 flag to multiply matrices as 2x2 matrices\n     * @return {Array} The product of the two transform matrices\n     */\n    multiplyTransformMatrices: function(a, b, is2x2) {\n      // Matrix multiply a * b\n      return [\n        a[0] * b[0] + a[2] * b[1],\n        a[1] * b[0] + a[3] * b[1],\n        a[0] * b[2] + a[2] * b[3],\n        a[1] * b[2] + a[3] * b[3],\n        is2x2 ? 0 : a[0] * b[4] + a[2] * b[5] + a[4],\n        is2x2 ? 0 : a[1] * b[4] + a[3] * b[5] + a[5]\n      ];\n    },\n\n    /**\n     * Decomposes standard 2x3 matrix into transform components\n     * @static\n     * @memberOf fabric.util\n     * @param  {Array} a transformMatrix\n     * @return {Object} Components of transform\n     */\n    qrDecompose: function(a) {\n      var angle = atan2(a[1], a[0]),\n          denom = pow(a[0], 2) + pow(a[1], 2),\n          scaleX = sqrt(denom),\n          scaleY = (a[0] * a[3] - a[2] * a [1]) / scaleX,\n          skewX = atan2(a[0] * a[2] + a[1] * a [3], denom);\n      return {\n        angle: angle  / PiBy180,\n        scaleX: scaleX,\n        scaleY: scaleY,\n        skewX: skewX / PiBy180,\n        skewY: 0,\n        translateX: a[4],\n        translateY: a[5]\n      };\n    },\n\n    /**\n     * Returns a transform matrix starting from an object of the same kind of\n     * the one returned from qrDecompose, useful also if you want to calculate some\n     * transformations from an object that is not enlived yet\n     * @static\n     * @memberOf fabric.util\n     * @param  {Object} options\n     * @param  {Number} [options.angle] angle in degrees\n     * @return {Number[]} transform matrix\n     */\n    calcRotateMatrix: function(options) {\n      if (!options.angle) {\n        return fabric.iMatrix.concat();\n      }\n      var theta = fabric.util.degreesToRadians(options.angle),\n          cos = fabric.util.cos(theta),\n          sin = fabric.util.sin(theta);\n      return [cos, sin, -sin, cos, 0, 0];\n    },\n\n    /**\n     * Returns a transform matrix starting from an object of the same kind of\n     * the one returned from qrDecompose, useful also if you want to calculate some\n     * transformations from an object that is not enlived yet.\n     * is called DimensionsTransformMatrix because those properties are the one that influence\n     * the size of the resulting box of the object.\n     * @static\n     * @memberOf fabric.util\n     * @param  {Object} options\n     * @param  {Number} [options.scaleX]\n     * @param  {Number} [options.scaleY]\n     * @param  {Boolean} [options.flipX]\n     * @param  {Boolean} [options.flipY]\n     * @param  {Number} [options.skewX]\n     * @param  {Number} [options.skewX]\n     * @return {Number[]} transform matrix\n     */\n    calcDimensionsMatrix: function(options) {\n      var scaleX = typeof options.scaleX === 'undefined' ? 1 : options.scaleX,\n          scaleY = typeof options.scaleY === 'undefined' ? 1 : options.scaleY,\n          scaleMatrix = [\n            options.flipX ? -scaleX : scaleX,\n            0,\n            0,\n            options.flipY ? -scaleY : scaleY,\n            0,\n            0],\n          multiply = fabric.util.multiplyTransformMatrices,\n          degreesToRadians = fabric.util.degreesToRadians;\n      if (options.skewX) {\n        scaleMatrix = multiply(\n          scaleMatrix,\n          [1, 0, Math.tan(degreesToRadians(options.skewX)), 1],\n          true);\n      }\n      if (options.skewY) {\n        scaleMatrix = multiply(\n          scaleMatrix,\n          [1, Math.tan(degreesToRadians(options.skewY)), 0, 1],\n          true);\n      }\n      return scaleMatrix;\n    },\n\n    /**\n     * Returns a transform matrix starting from an object of the same kind of\n     * the one returned from qrDecompose, useful also if you want to calculate some\n     * transformations from an object that is not enlived yet\n     * @static\n     * @memberOf fabric.util\n     * @param  {Object} options\n     * @param  {Number} [options.angle]\n     * @param  {Number} [options.scaleX]\n     * @param  {Number} [options.scaleY]\n     * @param  {Boolean} [options.flipX]\n     * @param  {Boolean} [options.flipY]\n     * @param  {Number} [options.skewX]\n     * @param  {Number} [options.skewX]\n     * @param  {Number} [options.translateX]\n     * @param  {Number} [options.translateY]\n     * @return {Number[]} transform matrix\n     */\n    composeMatrix: function(options) {\n      var matrix = [1, 0, 0, 1, options.translateX || 0, options.translateY || 0],\n          multiply = fabric.util.multiplyTransformMatrices;\n      if (options.angle) {\n        matrix = multiply(matrix, fabric.util.calcRotateMatrix(options));\n      }\n      if (options.scaleX || options.scaleY || options.skewX || options.skewY || options.flipX || options.flipY) {\n        matrix = multiply(matrix, fabric.util.calcDimensionsMatrix(options));\n      }\n      return matrix;\n    },\n\n    /**\n     * Returns a transform matrix that has the same effect of scaleX, scaleY and skewX.\n     * Is deprecated for composeMatrix. Please do not use it.\n     * @static\n     * @deprecated since 3.4.0\n     * @memberOf fabric.util\n     * @param  {Number} scaleX\n     * @param  {Number} scaleY\n     * @param  {Number} skewX\n     * @return {Number[]} transform matrix\n     */\n    customTransformMatrix: function(scaleX, scaleY, skewX) {\n      return fabric.util.composeMatrix({ scaleX: scaleX, scaleY: scaleY, skewX: skewX });\n    },\n\n    /**\n     * reset an object transform state to neutral. Top and left are not accounted for\n     * @static\n     * @memberOf fabric.util\n     * @param  {fabric.Object} target object to transform\n     */\n    resetObjectTransform: function (target) {\n      target.scaleX = 1;\n      target.scaleY = 1;\n      target.skewX = 0;\n      target.skewY = 0;\n      target.flipX = false;\n      target.flipY = false;\n      target.rotate(0);\n    },\n\n    /**\n     * Extract Object transform values\n     * @static\n     * @memberOf fabric.util\n     * @param  {fabric.Object} target object to read from\n     * @return {Object} Components of transform\n     */\n    saveObjectTransform: function (target) {\n      return {\n        scaleX: target.scaleX,\n        scaleY: target.scaleY,\n        skewX: target.skewX,\n        skewY: target.skewY,\n        angle: target.angle,\n        left: target.left,\n        flipX: target.flipX,\n        flipY: target.flipY,\n        top: target.top\n      };\n    },\n\n    /**\n     * Returns string representation of function body\n     * @param {Function} fn Function to get body of\n     * @return {String} Function body\n     */\n    getFunctionBody: function(fn) {\n      return (String(fn).match(/function[^{]*\\{([\\s\\S]*)\\}/) || {})[1];\n    },\n\n    /**\n     * Returns true if context has transparent pixel\n     * at specified location (taking tolerance into account)\n     * @param {CanvasRenderingContext2D} ctx context\n     * @param {Number} x x coordinate\n     * @param {Number} y y coordinate\n     * @param {Number} tolerance Tolerance\n     */\n    isTransparent: function(ctx, x, y, tolerance) {\n\n      // If tolerance is > 0 adjust start coords to take into account.\n      // If moves off Canvas fix to 0\n      if (tolerance > 0) {\n        if (x > tolerance) {\n          x -= tolerance;\n        }\n        else {\n          x = 0;\n        }\n        if (y > tolerance) {\n          y -= tolerance;\n        }\n        else {\n          y = 0;\n        }\n      }\n\n      var _isTransparent = true, i, temp,\n          imageData = ctx.getImageData(x, y, (tolerance * 2) || 1, (tolerance * 2) || 1),\n          l = imageData.data.length;\n\n      // Split image data - for tolerance > 1, pixelDataSize = 4;\n      for (i = 3; i < l; i += 4) {\n        temp = imageData.data[i];\n        _isTransparent = temp <= 0;\n        if (_isTransparent === false) {\n          break; // Stop if colour found\n        }\n      }\n\n      imageData = null;\n\n      return _isTransparent;\n    },\n\n    /**\n     * Parse preserveAspectRatio attribute from element\n     * @param {string} attribute to be parsed\n     * @return {Object} an object containing align and meetOrSlice attribute\n     */\n    parsePreserveAspectRatioAttribute: function(attribute) {\n      var meetOrSlice = 'meet', alignX = 'Mid', alignY = 'Mid',\n          aspectRatioAttrs = attribute.split(' '), align;\n\n      if (aspectRatioAttrs && aspectRatioAttrs.length) {\n        meetOrSlice = aspectRatioAttrs.pop();\n        if (meetOrSlice !== 'meet' && meetOrSlice !== 'slice') {\n          align = meetOrSlice;\n          meetOrSlice = 'meet';\n        }\n        else if (aspectRatioAttrs.length) {\n          align = aspectRatioAttrs.pop();\n        }\n      }\n      //divide align in alignX and alignY\n      alignX = align !== 'none' ? align.slice(1, 4) : 'none';\n      alignY = align !== 'none' ? align.slice(5, 8) : 'none';\n      return {\n        meetOrSlice: meetOrSlice,\n        alignX: alignX,\n        alignY: alignY\n      };\n    },\n\n    /**\n     * Clear char widths cache for the given font family or all the cache if no\n     * fontFamily is specified.\n     * Use it if you know you are loading fonts in a lazy way and you are not waiting\n     * for custom fonts to load properly when adding text objects to the canvas.\n     * If a text object is added when its own font is not loaded yet, you will get wrong\n     * measurement and so wrong bounding boxes.\n     * After the font cache is cleared, either change the textObject text content or call\n     * initDimensions() to trigger a recalculation\n     * @memberOf fabric.util\n     * @param {String} [fontFamily] font family to clear\n     */\n    clearFabricFontCache: function(fontFamily) {\n      fontFamily = (fontFamily || '').toLowerCase();\n      if (!fontFamily) {\n        fabric.charWidthsCache = { };\n      }\n      else if (fabric.charWidthsCache[fontFamily]) {\n        delete fabric.charWidthsCache[fontFamily];\n      }\n    },\n\n    /**\n     * Given current aspect ratio, determines the max width and height that can\n     * respect the total allowed area for the cache.\n     * @memberOf fabric.util\n     * @param {Number} ar aspect ratio\n     * @param {Number} maximumArea Maximum area you want to achieve\n     * @return {Object.x} Limited dimensions by X\n     * @return {Object.y} Limited dimensions by Y\n     */\n    limitDimsByArea: function(ar, maximumArea) {\n      var roughWidth = Math.sqrt(maximumArea * ar),\n          perfLimitSizeY = Math.floor(maximumArea / roughWidth);\n      return { x: Math.floor(roughWidth), y: perfLimitSizeY };\n    },\n\n    capValue: function(min, value, max) {\n      return Math.max(min, Math.min(value, max));\n    },\n\n    /**\n     * Finds the scale for the object source to fit inside the object destination,\n     * keeping aspect ratio intact.\n     * respect the total allowed area for the cache.\n     * @memberOf fabric.util\n     * @param {Object | fabric.Object} source\n     * @param {Number} source.height natural unscaled height of the object\n     * @param {Number} source.width natural unscaled width of the object\n     * @param {Object | fabric.Object} destination\n     * @param {Number} destination.height natural unscaled height of the object\n     * @param {Number} destination.width natural unscaled width of the object\n     * @return {Number} scale factor to apply to source to fit into destination\n     */\n    findScaleToFit: function(source, destination) {\n      return Math.min(destination.width / source.width, destination.height / source.height);\n    },\n\n    /**\n     * Finds the scale for the object source to cover entirely the object destination,\n     * keeping aspect ratio intact.\n     * respect the total allowed area for the cache.\n     * @memberOf fabric.util\n     * @param {Object | fabric.Object} source\n     * @param {Number} source.height natural unscaled height of the object\n     * @param {Number} source.width natural unscaled width of the object\n     * @param {Object | fabric.Object} destination\n     * @param {Number} destination.height natural unscaled height of the object\n     * @param {Number} destination.width natural unscaled width of the object\n     * @return {Number} scale factor to apply to source to cover destination\n     */\n    findScaleToCover: function(source, destination) {\n      return Math.max(destination.width / source.width, destination.height / source.height);\n    },\n\n    /**\n     * given an array of 6 number returns something like `\"matrix(...numbers)\"`\n     * @memberOf fabric.util\n     * @param {Array} trasnform an array with 6 numbers\n     * @return {String} transform matrix for svg\n     * @return {Object.y} Limited dimensions by Y\n     */\n    matrixToSVG: function(transform) {\n      return 'matrix(' + transform.map(function(value) {\n        return fabric.util.toFixed(value, fabric.Object.NUM_FRACTION_DIGITS);\n      }).join(' ') + ')';\n    }\n  };\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n\n  var _join = Array.prototype.join;\n\n  /* Adapted from http://dxr.mozilla.org/mozilla-central/source/content/svg/content/src/nsSVGPathDataParser.cpp\n   * by Andrea Bogazzi code is under MPL. if you don't have a copy of the license you can take it here\n   * http://mozilla.org/MPL/2.0/\n   */\n  function arcToSegments(toX, toY, rx, ry, large, sweep, rotateX) {\n    var argsString = _join.call(arguments);\n    if (fabric.arcToSegmentsCache[argsString]) {\n      return fabric.arcToSegmentsCache[argsString];\n    }\n\n    var PI = Math.PI, th = rotateX * PI / 180,\n        sinTh = fabric.util.sin(th),\n        cosTh = fabric.util.cos(th),\n        fromX = 0, fromY = 0;\n\n    rx = Math.abs(rx);\n    ry = Math.abs(ry);\n\n    var px = -cosTh * toX * 0.5 - sinTh * toY * 0.5,\n        py = -cosTh * toY * 0.5 + sinTh * toX * 0.5,\n        rx2 = rx * rx, ry2 = ry * ry, py2 = py * py, px2 = px * px,\n        pl = rx2 * ry2 - rx2 * py2 - ry2 * px2,\n        root = 0;\n\n    if (pl < 0) {\n      var s = Math.sqrt(1 - pl / (rx2 * ry2));\n      rx *= s;\n      ry *= s;\n    }\n    else {\n      root = (large === sweep ? -1.0 : 1.0) *\n              Math.sqrt( pl / (rx2 * py2 + ry2 * px2));\n    }\n\n    var cx = root * rx * py / ry,\n        cy = -root * ry * px / rx,\n        cx1 = cosTh * cx - sinTh * cy + toX * 0.5,\n        cy1 = sinTh * cx + cosTh * cy + toY * 0.5,\n        mTheta = calcVectorAngle(1, 0, (px - cx) / rx, (py - cy) / ry),\n        dtheta = calcVectorAngle((px - cx) / rx, (py - cy) / ry, (-px - cx) / rx, (-py - cy) / ry);\n\n    if (sweep === 0 && dtheta > 0) {\n      dtheta -= 2 * PI;\n    }\n    else if (sweep === 1 && dtheta < 0) {\n      dtheta += 2 * PI;\n    }\n\n    // Convert into cubic bezier segments <= 90deg\n    var segments = Math.ceil(Math.abs(dtheta / PI * 2)),\n        result = [], mDelta = dtheta / segments,\n        mT = 8 / 3 * Math.sin(mDelta / 4) * Math.sin(mDelta / 4) / Math.sin(mDelta / 2),\n        th3 = mTheta + mDelta;\n\n    for (var i = 0; i < segments; i++) {\n      result[i] = segmentToBezier(mTheta, th3, cosTh, sinTh, rx, ry, cx1, cy1, mT, fromX, fromY);\n      fromX = result[i][4];\n      fromY = result[i][5];\n      mTheta = th3;\n      th3 += mDelta;\n    }\n    fabric.arcToSegmentsCache[argsString] = result;\n    return result;\n  }\n\n  function segmentToBezier(th2, th3, cosTh, sinTh, rx, ry, cx1, cy1, mT, fromX, fromY) {\n    var costh2 = fabric.util.cos(th2),\n        sinth2 = fabric.util.sin(th2),\n        costh3 = fabric.util.cos(th3),\n        sinth3 = fabric.util.sin(th3),\n        toX = cosTh * rx * costh3 - sinTh * ry * sinth3 + cx1,\n        toY = sinTh * rx * costh3 + cosTh * ry * sinth3 + cy1,\n        cp1X = fromX + mT * ( -cosTh * rx * sinth2 - sinTh * ry * costh2),\n        cp1Y = fromY + mT * ( -sinTh * rx * sinth2 + cosTh * ry * costh2),\n        cp2X = toX + mT * ( cosTh * rx * sinth3 + sinTh * ry * costh3),\n        cp2Y = toY + mT * ( sinTh * rx * sinth3 - cosTh * ry * costh3);\n\n    return [\n      cp1X, cp1Y,\n      cp2X, cp2Y,\n      toX, toY\n    ];\n  }\n\n  /*\n   * Private\n   */\n  function calcVectorAngle(ux, uy, vx, vy) {\n    var ta = Math.atan2(uy, ux),\n        tb = Math.atan2(vy, vx);\n    if (tb >= ta) {\n      return tb - ta;\n    }\n    else {\n      return 2 * Math.PI - (ta - tb);\n    }\n  }\n\n  /**\n   * Draws arc\n   * @param {CanvasRenderingContext2D} ctx\n   * @param {Number} fx\n   * @param {Number} fy\n   * @param {Array} coords\n   */\n  fabric.util.drawArc = function(ctx, fx, fy, coords) {\n    var rx = coords[0],\n        ry = coords[1],\n        rot = coords[2],\n        large = coords[3],\n        sweep = coords[4],\n        tx = coords[5],\n        ty = coords[6],\n        segs = [[], [], [], []],\n        segsNorm = arcToSegments(tx - fx, ty - fy, rx, ry, large, sweep, rot);\n\n    for (var i = 0, len = segsNorm.length; i < len; i++) {\n      segs[i][0] = segsNorm[i][0] + fx;\n      segs[i][1] = segsNorm[i][1] + fy;\n      segs[i][2] = segsNorm[i][2] + fx;\n      segs[i][3] = segsNorm[i][3] + fy;\n      segs[i][4] = segsNorm[i][4] + fx;\n      segs[i][5] = segsNorm[i][5] + fy;\n      ctx.bezierCurveTo.apply(ctx, segs[i]);\n    }\n  };\n\n  /**\n   * Calculate bounding box of a elliptic-arc\n   * @param {Number} fx start point of arc\n   * @param {Number} fy\n   * @param {Number} rx horizontal radius\n   * @param {Number} ry vertical radius\n   * @param {Number} rot angle of horizontal axe\n   * @param {Number} large 1 or 0, whatever the arc is the big or the small on the 2 points\n   * @param {Number} sweep 1 or 0, 1 clockwise or counterclockwise direction\n   * @param {Number} tx end point of arc\n   * @param {Number} ty\n   */\n  fabric.util.getBoundsOfArc = function(fx, fy, rx, ry, rot, large, sweep, tx, ty) {\n\n    var fromX = 0, fromY = 0, bound, bounds = [],\n        segs = arcToSegments(tx - fx, ty - fy, rx, ry, large, sweep, rot);\n\n    for (var i = 0, len = segs.length; i < len; i++) {\n      bound = getBoundsOfCurve(fromX, fromY, segs[i][0], segs[i][1], segs[i][2], segs[i][3], segs[i][4], segs[i][5]);\n      bounds.push({ x: bound[0].x + fx, y: bound[0].y + fy });\n      bounds.push({ x: bound[1].x + fx, y: bound[1].y + fy });\n      fromX = segs[i][4];\n      fromY = segs[i][5];\n    }\n    return bounds;\n  };\n\n  /**\n   * Calculate bounding box of a beziercurve\n   * @param {Number} x0 starting point\n   * @param {Number} y0\n   * @param {Number} x1 first control point\n   * @param {Number} y1\n   * @param {Number} x2 secondo control point\n   * @param {Number} y2\n   * @param {Number} x3 end of beizer\n   * @param {Number} y3\n   */\n  // taken from http://jsbin.com/ivomiq/56/edit  no credits available for that.\n  function getBoundsOfCurve(x0, y0, x1, y1, x2, y2, x3, y3) {\n    var argsString;\n    if (fabric.cachesBoundsOfCurve) {\n      argsString = _join.call(arguments);\n      if (fabric.boundsOfCurveCache[argsString]) {\n        return fabric.boundsOfCurveCache[argsString];\n      }\n    }\n\n    var sqrt = Math.sqrt,\n        min = Math.min, max = Math.max,\n        abs = Math.abs, tvalues = [],\n        bounds = [[], []],\n        a, b, c, t, t1, t2, b2ac, sqrtb2ac;\n\n    b = 6 * x0 - 12 * x1 + 6 * x2;\n    a = -3 * x0 + 9 * x1 - 9 * x2 + 3 * x3;\n    c = 3 * x1 - 3 * x0;\n\n    for (var i = 0; i < 2; ++i) {\n      if (i > 0) {\n        b = 6 * y0 - 12 * y1 + 6 * y2;\n        a = -3 * y0 + 9 * y1 - 9 * y2 + 3 * y3;\n        c = 3 * y1 - 3 * y0;\n      }\n\n      if (abs(a) < 1e-12) {\n        if (abs(b) < 1e-12) {\n          continue;\n        }\n        t = -c / b;\n        if (0 < t && t < 1) {\n          tvalues.push(t);\n        }\n        continue;\n      }\n      b2ac = b * b - 4 * c * a;\n      if (b2ac < 0) {\n        continue;\n      }\n      sqrtb2ac = sqrt(b2ac);\n      t1 = (-b + sqrtb2ac) / (2 * a);\n      if (0 < t1 && t1 < 1) {\n        tvalues.push(t1);\n      }\n      t2 = (-b - sqrtb2ac) / (2 * a);\n      if (0 < t2 && t2 < 1) {\n        tvalues.push(t2);\n      }\n    }\n\n    var x, y, j = tvalues.length, jlen = j, mt;\n    while (j--) {\n      t = tvalues[j];\n      mt = 1 - t;\n      x = (mt * mt * mt * x0) + (3 * mt * mt * t * x1) + (3 * mt * t * t * x2) + (t * t * t * x3);\n      bounds[0][j] = x;\n\n      y = (mt * mt * mt * y0) + (3 * mt * mt * t * y1) + (3 * mt * t * t * y2) + (t * t * t * y3);\n      bounds[1][j] = y;\n    }\n\n    bounds[0][jlen] = x0;\n    bounds[1][jlen] = y0;\n    bounds[0][jlen + 1] = x3;\n    bounds[1][jlen + 1] = y3;\n    var result = [\n      {\n        x: min.apply(null, bounds[0]),\n        y: min.apply(null, bounds[1])\n      },\n      {\n        x: max.apply(null, bounds[0]),\n        y: max.apply(null, bounds[1])\n      }\n    ];\n    if (fabric.cachesBoundsOfCurve) {\n      fabric.boundsOfCurveCache[argsString] = result;\n    }\n    return result;\n  }\n\n  fabric.util.getBoundsOfCurve = getBoundsOfCurve;\n\n})();\n\n\n(function() {\n\n  var slice = Array.prototype.slice;\n\n  /**\n   * Invokes method on all items in a given array\n   * @memberOf fabric.util.array\n   * @param {Array} array Array to iterate over\n   * @param {String} method Name of a method to invoke\n   * @return {Array}\n   */\n  function invoke(array, method) {\n    var args = slice.call(arguments, 2), result = [];\n    for (var i = 0, len = array.length; i < len; i++) {\n      result[i] = args.length ? array[i][method].apply(array[i], args) : array[i][method].call(array[i]);\n    }\n    return result;\n  }\n\n  /**\n   * Finds maximum value in array (not necessarily \"first\" one)\n   * @memberOf fabric.util.array\n   * @param {Array} array Array to iterate over\n   * @param {String} byProperty\n   * @return {*}\n   */\n  function max(array, byProperty) {\n    return find(array, byProperty, function(value1, value2) {\n      return value1 >= value2;\n    });\n  }\n\n  /**\n   * Finds minimum value in array (not necessarily \"first\" one)\n   * @memberOf fabric.util.array\n   * @param {Array} array Array to iterate over\n   * @param {String} byProperty\n   * @return {*}\n   */\n  function min(array, byProperty) {\n    return find(array, byProperty, function(value1, value2) {\n      return value1 < value2;\n    });\n  }\n\n  /**\n   * @private\n   */\n  function fill(array, value) {\n    var k = array.length;\n    while (k--) {\n      array[k] = value;\n    }\n    return array;\n  }\n\n  /**\n   * @private\n   */\n  function find(array, byProperty, condition) {\n    if (!array || array.length === 0) {\n      return;\n    }\n\n    var i = array.length - 1,\n        result = byProperty ? array[i][byProperty] : array[i];\n    if (byProperty) {\n      while (i--) {\n        if (condition(array[i][byProperty], result)) {\n          result = array[i][byProperty];\n        }\n      }\n    }\n    else {\n      while (i--) {\n        if (condition(array[i], result)) {\n          result = array[i];\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * @namespace fabric.util.array\n   */\n  fabric.util.array = {\n    fill: fill,\n    invoke: invoke,\n    min: min,\n    max: max\n  };\n\n})();\n\n\n(function() {\n  /**\n   * Copies all enumerable properties of one js object to another\n   * this does not and cannot compete with generic utils.\n   * Does not clone or extend fabric.Object subclasses.\n   * This is mostly for internal use and has extra handling for fabricJS objects\n   * it skips the canvas property in deep cloning.\n   * @memberOf fabric.util.object\n   * @param {Object} destination Where to copy to\n   * @param {Object} source Where to copy from\n   * @return {Object}\n   */\n\n  function extend(destination, source, deep) {\n    // JScript DontEnum bug is not taken care of\n    // the deep clone is for internal use, is not meant to avoid\n    // javascript traps or cloning html element or self referenced objects.\n    if (deep) {\n      if (!fabric.isLikelyNode && source instanceof Element) {\n        // avoid cloning deep images, canvases,\n        destination = source;\n      }\n      else if (source instanceof Array) {\n        destination = [];\n        for (var i = 0, len = source.length; i < len; i++) {\n          destination[i] = extend({ }, source[i], deep);\n        }\n      }\n      else if (source && typeof source === 'object') {\n        for (var property in source) {\n          if (property === 'canvas') {\n            destination[property] = extend({ }, source[property]);\n          }\n          else if (source.hasOwnProperty(property)) {\n            destination[property] = extend({ }, source[property], deep);\n          }\n        }\n      }\n      else {\n        // this sounds odd for an extend but is ok for recursive use\n        destination = source;\n      }\n    }\n    else {\n      for (var property in source) {\n        destination[property] = source[property];\n      }\n    }\n    return destination;\n  }\n\n  /**\n   * Creates an empty object and copies all enumerable properties of another object to it\n   * @memberOf fabric.util.object\n   * TODO: this function return an empty object if you try to clone null\n   * @param {Object} object Object to clone\n   * @return {Object}\n   */\n  function clone(object, deep) {\n    return extend({ }, object, deep);\n  }\n\n  /** @namespace fabric.util.object */\n  fabric.util.object = {\n    extend: extend,\n    clone: clone\n  };\n  fabric.util.object.extend(fabric.util, fabric.Observable);\n})();\n\n\n(function() {\n\n  /**\n   * Camelizes a string\n   * @memberOf fabric.util.string\n   * @param {String} string String to camelize\n   * @return {String} Camelized version of a string\n   */\n  function camelize(string) {\n    return string.replace(/-+(.)?/g, function(match, character) {\n      return character ? character.toUpperCase() : '';\n    });\n  }\n\n  /**\n   * Capitalizes a string\n   * @memberOf fabric.util.string\n   * @param {String} string String to capitalize\n   * @param {Boolean} [firstLetterOnly] If true only first letter is capitalized\n   * and other letters stay untouched, if false first letter is capitalized\n   * and other letters are converted to lowercase.\n   * @return {String} Capitalized version of a string\n   */\n  function capitalize(string, firstLetterOnly) {\n    return string.charAt(0).toUpperCase() +\n      (firstLetterOnly ? string.slice(1) : string.slice(1).toLowerCase());\n  }\n\n  /**\n   * Escapes XML in a string\n   * @memberOf fabric.util.string\n   * @param {String} string String to escape\n   * @return {String} Escaped version of a string\n   */\n  function escapeXml(string) {\n    return string.replace(/&/g, '&amp;')\n      .replace(/\"/g, '&quot;')\n      .replace(/'/g, '&apos;')\n      .replace(/</g, '&lt;')\n      .replace(/>/g, '&gt;');\n  }\n\n  /**\n   * Divide a string in the user perceived single units\n   * @memberOf fabric.util.string\n   * @param {String} textstring String to escape\n   * @return {Array} array containing the graphemes\n   */\n  function graphemeSplit(textstring) {\n    var i = 0, chr, graphemes = [];\n    for (i = 0, chr; i < textstring.length; i++) {\n      if ((chr = getWholeChar(textstring, i)) === false) {\n        continue;\n      }\n      graphemes.push(chr);\n    }\n    return graphemes;\n  }\n\n  // taken from mdn in the charAt doc page.\n  function getWholeChar(str, i) {\n    var code = str.charCodeAt(i);\n\n    if (isNaN(code)) {\n      return ''; // Position not found\n    }\n    if (code < 0xD800 || code > 0xDFFF) {\n      return str.charAt(i);\n    }\n\n    // High surrogate (could change last hex to 0xDB7F to treat high private\n    // surrogates as single characters)\n    if (0xD800 <= code && code <= 0xDBFF) {\n      if (str.length <= (i + 1)) {\n        throw 'High surrogate without following low surrogate';\n      }\n      var next = str.charCodeAt(i + 1);\n      if (0xDC00 > next || next > 0xDFFF) {\n        throw 'High surrogate without following low surrogate';\n      }\n      return str.charAt(i) + str.charAt(i + 1);\n    }\n    // Low surrogate (0xDC00 <= code && code <= 0xDFFF)\n    if (i === 0) {\n      throw 'Low surrogate without preceding high surrogate';\n    }\n    var prev = str.charCodeAt(i - 1);\n\n    // (could change last hex to 0xDB7F to treat high private\n    // surrogates as single characters)\n    if (0xD800 > prev || prev > 0xDBFF) {\n      throw 'Low surrogate without preceding high surrogate';\n    }\n    // We can pass over low surrogates now as the second component\n    // in a pair which we have already processed\n    return false;\n  }\n\n\n  /**\n   * String utilities\n   * @namespace fabric.util.string\n   */\n  fabric.util.string = {\n    camelize: camelize,\n    capitalize: capitalize,\n    escapeXml: escapeXml,\n    graphemeSplit: graphemeSplit\n  };\n})();\n\n\n(function() {\n\n  var slice = Array.prototype.slice, emptyFunction = function() { },\n\n      IS_DONTENUM_BUGGY = (function() {\n        for (var p in { toString: 1 }) {\n          if (p === 'toString') {\n            return false;\n          }\n        }\n        return true;\n      })(),\n\n      /** @ignore */\n      addMethods = function(klass, source, parent) {\n        for (var property in source) {\n\n          if (property in klass.prototype &&\n              typeof klass.prototype[property] === 'function' &&\n              (source[property] + '').indexOf('callSuper') > -1) {\n\n            klass.prototype[property] = (function(property) {\n              return function() {\n\n                var superclass = this.constructor.superclass;\n                this.constructor.superclass = parent;\n                var returnValue = source[property].apply(this, arguments);\n                this.constructor.superclass = superclass;\n\n                if (property !== 'initialize') {\n                  return returnValue;\n                }\n              };\n            })(property);\n          }\n          else {\n            klass.prototype[property] = source[property];\n          }\n\n          if (IS_DONTENUM_BUGGY) {\n            if (source.toString !== Object.prototype.toString) {\n              klass.prototype.toString = source.toString;\n            }\n            if (source.valueOf !== Object.prototype.valueOf) {\n              klass.prototype.valueOf = source.valueOf;\n            }\n          }\n        }\n      };\n\n  function Subclass() { }\n\n  function callSuper(methodName) {\n    var parentMethod = null,\n        _this = this;\n\n    // climb prototype chain to find method not equal to callee's method\n    while (_this.constructor.superclass) {\n      var superClassMethod = _this.constructor.superclass.prototype[methodName];\n      if (_this[methodName] !== superClassMethod) {\n        parentMethod = superClassMethod;\n        break;\n      }\n      // eslint-disable-next-line\n      _this = _this.constructor.superclass.prototype;\n    }\n\n    if (!parentMethod) {\n      return console.log('tried to callSuper ' + methodName + ', method not found in prototype chain', this);\n    }\n\n    return (arguments.length > 1)\n      ? parentMethod.apply(this, slice.call(arguments, 1))\n      : parentMethod.call(this);\n  }\n\n  /**\n   * Helper for creation of \"classes\".\n   * @memberOf fabric.util\n   * @param {Function} [parent] optional \"Class\" to inherit from\n   * @param {Object} [properties] Properties shared by all instances of this class\n   *                  (be careful modifying objects defined here as this would affect all instances)\n   */\n  function createClass() {\n    var parent = null,\n        properties = slice.call(arguments, 0);\n\n    if (typeof properties[0] === 'function') {\n      parent = properties.shift();\n    }\n    function klass() {\n      this.initialize.apply(this, arguments);\n    }\n\n    klass.superclass = parent;\n    klass.subclasses = [];\n\n    if (parent) {\n      Subclass.prototype = parent.prototype;\n      klass.prototype = new Subclass();\n      parent.subclasses.push(klass);\n    }\n    for (var i = 0, length = properties.length; i < length; i++) {\n      addMethods(klass, properties[i], parent);\n    }\n    if (!klass.prototype.initialize) {\n      klass.prototype.initialize = emptyFunction;\n    }\n    klass.prototype.constructor = klass;\n    klass.prototype.callSuper = callSuper;\n    return klass;\n  }\n\n  fabric.util.createClass = createClass;\n})();\n\n\n(function () {\n  // since ie10 or ie9 can use addEventListener but they do not support options, i need to check\n  var couldUseAttachEvent = !!fabric.document.createElement('div').attachEvent;\n  /**\n   * Adds an event listener to an element\n   * @function\n   * @memberOf fabric.util\n   * @param {HTMLElement} element\n   * @param {String} eventName\n   * @param {Function} handler\n   */\n  fabric.util.addListener = function(element, eventName, handler, options) {\n    element && element.addEventListener(eventName, handler, couldUseAttachEvent ? false : options);\n  };\n\n  /**\n   * Removes an event listener from an element\n   * @function\n   * @memberOf fabric.util\n   * @param {HTMLElement} element\n   * @param {String} eventName\n   * @param {Function} handler\n   */\n  fabric.util.removeListener = function(element, eventName, handler, options) {\n    element && element.removeEventListener(eventName, handler, couldUseAttachEvent ? false : options);\n  };\n\n  function getTouchInfo(event) {\n    var touchProp = event.changedTouches;\n    if (touchProp && touchProp[0]) {\n      return touchProp[0];\n    }\n    return event;\n  }\n\n  fabric.util.getPointer = function(event) {\n    var element = event.target,\n        scroll = fabric.util.getScrollLeftTop(element),\n        _evt = getTouchInfo(event);\n    return {\n      x: _evt.clientX + scroll.left,\n      y: _evt.clientY + scroll.top\n    };\n  };\n})();\n\n\n(function () {\n\n  /**\n   * Cross-browser wrapper for setting element's style\n   * @memberOf fabric.util\n   * @param {HTMLElement} element\n   * @param {Object} styles\n   * @return {HTMLElement} Element that was passed as a first argument\n   */\n  function setStyle(element, styles) {\n    var elementStyle = element.style;\n    if (!elementStyle) {\n      return element;\n    }\n    if (typeof styles === 'string') {\n      element.style.cssText += ';' + styles;\n      return styles.indexOf('opacity') > -1\n        ? setOpacity(element, styles.match(/opacity:\\s*(\\d?\\.?\\d*)/)[1])\n        : element;\n    }\n    for (var property in styles) {\n      if (property === 'opacity') {\n        setOpacity(element, styles[property]);\n      }\n      else {\n        var normalizedProperty = (property === 'float' || property === 'cssFloat')\n          ? (typeof elementStyle.styleFloat === 'undefined' ? 'cssFloat' : 'styleFloat')\n          : property;\n        elementStyle[normalizedProperty] = styles[property];\n      }\n    }\n    return element;\n  }\n\n  var parseEl = fabric.document.createElement('div'),\n      supportsOpacity = typeof parseEl.style.opacity === 'string',\n      supportsFilters = typeof parseEl.style.filter === 'string',\n      reOpacity = /alpha\\s*\\(\\s*opacity\\s*=\\s*([^\\)]+)\\)/,\n\n      /** @ignore */\n      setOpacity = function (element) { return element; };\n\n  if (supportsOpacity) {\n    /** @ignore */\n    setOpacity = function(element, value) {\n      element.style.opacity = value;\n      return element;\n    };\n  }\n  else if (supportsFilters) {\n    /** @ignore */\n    setOpacity = function(element, value) {\n      var es = element.style;\n      if (element.currentStyle && !element.currentStyle.hasLayout) {\n        es.zoom = 1;\n      }\n      if (reOpacity.test(es.filter)) {\n        value = value >= 0.9999 ? '' : ('alpha(opacity=' + (value * 100) + ')');\n        es.filter = es.filter.replace(reOpacity, value);\n      }\n      else {\n        es.filter += ' alpha(opacity=' + (value * 100) + ')';\n      }\n      return element;\n    };\n  }\n\n  fabric.util.setStyle = setStyle;\n\n})();\n\n\n(function() {\n\n  var _slice = Array.prototype.slice;\n\n  /**\n   * Takes id and returns an element with that id (if one exists in a document)\n   * @memberOf fabric.util\n   * @param {String|HTMLElement} id\n   * @return {HTMLElement|null}\n   */\n  function getById(id) {\n    return typeof id === 'string' ? fabric.document.getElementById(id) : id;\n  }\n\n  var sliceCanConvertNodelists,\n      /**\n       * Converts an array-like object (e.g. arguments or NodeList) to an array\n       * @memberOf fabric.util\n       * @param {Object} arrayLike\n       * @return {Array}\n       */\n      toArray = function(arrayLike) {\n        return _slice.call(arrayLike, 0);\n      };\n\n  try {\n    sliceCanConvertNodelists = toArray(fabric.document.childNodes) instanceof Array;\n  }\n  catch (err) { }\n\n  if (!sliceCanConvertNodelists) {\n    toArray = function(arrayLike) {\n      var arr = new Array(arrayLike.length), i = arrayLike.length;\n      while (i--) {\n        arr[i] = arrayLike[i];\n      }\n      return arr;\n    };\n  }\n\n  /**\n   * Creates specified element with specified attributes\n   * @memberOf fabric.util\n   * @param {String} tagName Type of an element to create\n   * @param {Object} [attributes] Attributes to set on an element\n   * @return {HTMLElement} Newly created element\n   */\n  function makeElement(tagName, attributes) {\n    var el = fabric.document.createElement(tagName);\n    for (var prop in attributes) {\n      if (prop === 'class') {\n        el.className = attributes[prop];\n      }\n      else if (prop === 'for') {\n        el.htmlFor = attributes[prop];\n      }\n      else {\n        el.setAttribute(prop, attributes[prop]);\n      }\n    }\n    return el;\n  }\n\n  /**\n   * Adds class to an element\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to add class to\n   * @param {String} className Class to add to an element\n   */\n  function addClass(element, className) {\n    if (element && (' ' + element.className + ' ').indexOf(' ' + className + ' ') === -1) {\n      element.className += (element.className ? ' ' : '') + className;\n    }\n  }\n\n  /**\n   * Wraps element with another element\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to wrap\n   * @param {HTMLElement|String} wrapper Element to wrap with\n   * @param {Object} [attributes] Attributes to set on a wrapper\n   * @return {HTMLElement} wrapper\n   */\n  function wrapElement(element, wrapper, attributes) {\n    if (typeof wrapper === 'string') {\n      wrapper = makeElement(wrapper, attributes);\n    }\n    if (element.parentNode) {\n      element.parentNode.replaceChild(wrapper, element);\n    }\n    wrapper.appendChild(element);\n    return wrapper;\n  }\n\n  /**\n   * Returns element scroll offsets\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to operate on\n   * @return {Object} Object with left/top values\n   */\n  function getScrollLeftTop(element) {\n\n    var left = 0,\n        top = 0,\n        docElement = fabric.document.documentElement,\n        body = fabric.document.body || {\n          scrollLeft: 0, scrollTop: 0\n        };\n\n    // While loop checks (and then sets element to) .parentNode OR .host\n    //  to account for ShadowDOM. We still want to traverse up out of ShadowDOM,\n    //  but the .parentNode of a root ShadowDOM node will always be null, instead\n    //  it should be accessed through .host. See http://stackoverflow.com/a/24765528/4383938\n    while (element && (element.parentNode || element.host)) {\n\n      // Set element to element parent, or 'host' in case of ShadowDOM\n      element = element.parentNode || element.host;\n\n      if (element === fabric.document) {\n        left = body.scrollLeft || docElement.scrollLeft || 0;\n        top = body.scrollTop ||  docElement.scrollTop || 0;\n      }\n      else {\n        left += element.scrollLeft || 0;\n        top += element.scrollTop || 0;\n      }\n\n      if (element.nodeType === 1 && element.style.position === 'fixed') {\n        break;\n      }\n    }\n\n    return { left: left, top: top };\n  }\n\n  /**\n   * Returns offset for a given element\n   * @function\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to get offset for\n   * @return {Object} Object with \"left\" and \"top\" properties\n   */\n  function getElementOffset(element) {\n    var docElem,\n        doc = element && element.ownerDocument,\n        box = { left: 0, top: 0 },\n        offset = { left: 0, top: 0 },\n        scrollLeftTop,\n        offsetAttributes = {\n          borderLeftWidth: 'left',\n          borderTopWidth:  'top',\n          paddingLeft:     'left',\n          paddingTop:      'top'\n        };\n\n    if (!doc) {\n      return offset;\n    }\n\n    for (var attr in offsetAttributes) {\n      offset[offsetAttributes[attr]] += parseInt(getElementStyle(element, attr), 10) || 0;\n    }\n\n    docElem = doc.documentElement;\n    if ( typeof element.getBoundingClientRect !== 'undefined' ) {\n      box = element.getBoundingClientRect();\n    }\n\n    scrollLeftTop = getScrollLeftTop(element);\n\n    return {\n      left: box.left + scrollLeftTop.left - (docElem.clientLeft || 0) + offset.left,\n      top: box.top + scrollLeftTop.top - (docElem.clientTop || 0)  + offset.top\n    };\n  }\n\n  /**\n   * Returns style attribute value of a given element\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to get style attribute for\n   * @param {String} attr Style attribute to get for element\n   * @return {String} Style attribute value of the given element.\n   */\n  var getElementStyle;\n  if (fabric.document.defaultView && fabric.document.defaultView.getComputedStyle) {\n    getElementStyle = function(element, attr) {\n      var style = fabric.document.defaultView.getComputedStyle(element, null);\n      return style ? style[attr] : undefined;\n    };\n  }\n  else {\n    getElementStyle = function(element, attr) {\n      var value = element.style[attr];\n      if (!value && element.currentStyle) {\n        value = element.currentStyle[attr];\n      }\n      return value;\n    };\n  }\n\n  (function () {\n    var style = fabric.document.documentElement.style,\n        selectProp = 'userSelect' in style\n          ? 'userSelect'\n          : 'MozUserSelect' in style\n            ? 'MozUserSelect'\n            : 'WebkitUserSelect' in style\n              ? 'WebkitUserSelect'\n              : 'KhtmlUserSelect' in style\n                ? 'KhtmlUserSelect'\n                : '';\n\n    /**\n     * Makes element unselectable\n     * @memberOf fabric.util\n     * @param {HTMLElement} element Element to make unselectable\n     * @return {HTMLElement} Element that was passed in\n     */\n    function makeElementUnselectable(element) {\n      if (typeof element.onselectstart !== 'undefined') {\n        element.onselectstart = fabric.util.falseFunction;\n      }\n      if (selectProp) {\n        element.style[selectProp] = 'none';\n      }\n      else if (typeof element.unselectable === 'string') {\n        element.unselectable = 'on';\n      }\n      return element;\n    }\n\n    /**\n     * Makes element selectable\n     * @memberOf fabric.util\n     * @param {HTMLElement} element Element to make selectable\n     * @return {HTMLElement} Element that was passed in\n     */\n    function makeElementSelectable(element) {\n      if (typeof element.onselectstart !== 'undefined') {\n        element.onselectstart = null;\n      }\n      if (selectProp) {\n        element.style[selectProp] = '';\n      }\n      else if (typeof element.unselectable === 'string') {\n        element.unselectable = '';\n      }\n      return element;\n    }\n\n    fabric.util.makeElementUnselectable = makeElementUnselectable;\n    fabric.util.makeElementSelectable = makeElementSelectable;\n  })();\n\n  (function() {\n\n    /**\n     * Inserts a script element with a given url into a document; invokes callback, when that script is finished loading\n     * @memberOf fabric.util\n     * @param {String} url URL of a script to load\n     * @param {Function} callback Callback to execute when script is finished loading\n     */\n    function getScript(url, callback) {\n      var headEl = fabric.document.getElementsByTagName('head')[0],\n          scriptEl = fabric.document.createElement('script'),\n          loading = true;\n\n      /** @ignore */\n      scriptEl.onload = /** @ignore */ scriptEl.onreadystatechange = function(e) {\n        if (loading) {\n          if (typeof this.readyState === 'string' &&\n              this.readyState !== 'loaded' &&\n              this.readyState !== 'complete') {\n            return;\n          }\n          loading = false;\n          callback(e || fabric.window.event);\n          scriptEl = scriptEl.onload = scriptEl.onreadystatechange = null;\n        }\n      };\n      scriptEl.src = url;\n      headEl.appendChild(scriptEl);\n      // causes issue in Opera\n      // headEl.removeChild(scriptEl);\n    }\n\n    fabric.util.getScript = getScript;\n  })();\n\n  function getNodeCanvas(element) {\n    var impl = fabric.jsdomImplForWrapper(element);\n    return impl._canvas || impl._image;\n  };\n\n  function cleanUpJsdomNode(element) {\n    if (!fabric.isLikelyNode) {\n      return;\n    }\n    var impl = fabric.jsdomImplForWrapper(element);\n    if (impl) {\n      impl._image = null;\n      impl._canvas = null;\n      // unsure if necessary\n      impl._currentSrc = null;\n      impl._attributes = null;\n      impl._classList = null;\n    }\n  }\n\n  fabric.util.getById = getById;\n  fabric.util.toArray = toArray;\n  fabric.util.makeElement = makeElement;\n  fabric.util.addClass = addClass;\n  fabric.util.wrapElement = wrapElement;\n  fabric.util.getScrollLeftTop = getScrollLeftTop;\n  fabric.util.getElementOffset = getElementOffset;\n  fabric.util.getElementStyle = getElementStyle;\n  fabric.util.getNodeCanvas = getNodeCanvas;\n  fabric.util.cleanUpJsdomNode = cleanUpJsdomNode;\n\n})();\n\n\n(function() {\n\n  function addParamToUrl(url, param) {\n    return url + (/\\?/.test(url) ? '&' : '?') + param;\n  }\n\n  function emptyFn() { }\n\n  /**\n   * Cross-browser abstraction for sending XMLHttpRequest\n   * @memberOf fabric.util\n   * @param {String} url URL to send XMLHttpRequest to\n   * @param {Object} [options] Options object\n   * @param {String} [options.method=\"GET\"]\n   * @param {String} [options.parameters] parameters to append to url in GET or in body\n   * @param {String} [options.body] body to send with POST or PUT request\n   * @param {Function} options.onComplete Callback to invoke when request is completed\n   * @return {XMLHttpRequest} request\n   */\n  function request(url, options) {\n    options || (options = { });\n\n    var method = options.method ? options.method.toUpperCase() : 'GET',\n        onComplete = options.onComplete || function() { },\n        xhr = new fabric.window.XMLHttpRequest(),\n        body = options.body || options.parameters;\n\n    /** @ignore */\n    xhr.onreadystatechange = function() {\n      if (xhr.readyState === 4) {\n        onComplete(xhr);\n        xhr.onreadystatechange = emptyFn;\n      }\n    };\n\n    if (method === 'GET') {\n      body = null;\n      if (typeof options.parameters === 'string') {\n        url = addParamToUrl(url, options.parameters);\n      }\n    }\n\n    xhr.open(method, url, true);\n\n    if (method === 'POST' || method === 'PUT') {\n      xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');\n    }\n\n    xhr.send(body);\n    return xhr;\n  }\n\n  fabric.util.request = request;\n})();\n\n\n/**\n * Wrapper around `console.log` (when available)\n * @param {*} [values] Values to log\n */\nfabric.log = console.log;\n\n/**\n * Wrapper around `console.warn` (when available)\n * @param {*} [values] Values to log as a warning\n */\nfabric.warn = console.warn;\n\n\n(function() {\n\n  function noop() {\n    return false;\n  }\n\n  function defaultEasing(t, b, c, d) {\n    return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;\n  }\n\n  /**\n   * Changes value from one to another within certain period of time, invoking callbacks as value is being changed.\n   * @memberOf fabric.util\n   * @param {Object} [options] Animation options\n   * @param {Function} [options.onChange] Callback; invoked on every value change\n   * @param {Function} [options.onComplete] Callback; invoked when value change is completed\n   * @param {Number} [options.startValue=0] Starting value\n   * @param {Number} [options.endValue=100] Ending value\n   * @param {Number} [options.byValue=100] Value to modify the property by\n   * @param {Function} [options.easing] Easing function\n   * @param {Number} [options.duration=500] Duration of change (in ms)\n   * @param {Function} [options.abort] Additional function with logic. If returns true, onComplete is called.\n   */\n  function animate(options) {\n\n    requestAnimFrame(function(timestamp) {\n      options || (options = { });\n\n      var start = timestamp || +new Date(),\n          duration = options.duration || 500,\n          finish = start + duration, time,\n          onChange = options.onChange || noop,\n          abort = options.abort || noop,\n          onComplete = options.onComplete || noop,\n          easing = options.easing || defaultEasing,\n          startValue = 'startValue' in options ? options.startValue : 0,\n          endValue = 'endValue' in options ? options.endValue : 100,\n          byValue = options.byValue || endValue - startValue;\n\n      options.onStart && options.onStart();\n\n      (function tick(ticktime) {\n        // TODO: move abort call after calculation\n        // and pass (current,valuePerc, timePerc) as arguments\n        time = ticktime || +new Date();\n        var currentTime = time > finish ? duration : (time - start),\n            timePerc = currentTime / duration,\n            current = easing(currentTime, startValue, byValue, duration),\n            valuePerc = Math.abs((current - startValue) / byValue);\n        if (abort()) {\n          onComplete(endValue, 1, 1);\n          return;\n        }\n        if (time > finish) {\n          onChange(endValue, 1, 1);\n          onComplete(endValue, 1, 1);\n          return;\n        }\n        else {\n          onChange(current, valuePerc, timePerc);\n          requestAnimFrame(tick);\n        }\n      })(start);\n    });\n  }\n\n  var _requestAnimFrame = fabric.window.requestAnimationFrame       ||\n                          fabric.window.webkitRequestAnimationFrame ||\n                          fabric.window.mozRequestAnimationFrame    ||\n                          fabric.window.oRequestAnimationFrame      ||\n                          fabric.window.msRequestAnimationFrame     ||\n                          function(callback) {\n                            return fabric.window.setTimeout(callback, 1000 / 60);\n                          };\n\n  var _cancelAnimFrame = fabric.window.cancelAnimationFrame || fabric.window.clearTimeout;\n\n  /**\n   * requestAnimationFrame polyfill based on http://paulirish.com/2011/requestanimationframe-for-smart-animating/\n   * In order to get a precise start time, `requestAnimFrame` should be called as an entry into the method\n   * @memberOf fabric.util\n   * @param {Function} callback Callback to invoke\n   * @param {DOMElement} element optional Element to associate with animation\n   */\n  function requestAnimFrame() {\n    return _requestAnimFrame.apply(fabric.window, arguments);\n  }\n\n  function cancelAnimFrame() {\n    return _cancelAnimFrame.apply(fabric.window, arguments);\n  }\n\n  fabric.util.animate = animate;\n  fabric.util.requestAnimFrame = requestAnimFrame;\n  fabric.util.cancelAnimFrame = cancelAnimFrame;\n})();\n\n\n(function() {\n  // Calculate an in-between color. Returns a \"rgba()\" string.\n  // Credit: Edwin Martin <edwin@bitstorm.org>\n  //         http://www.bitstorm.org/jquery/color-animation/jquery.animate-colors.js\n  function calculateColor(begin, end, pos) {\n    var color = 'rgba('\n        + parseInt((begin[0] + pos * (end[0] - begin[0])), 10) + ','\n        + parseInt((begin[1] + pos * (end[1] - begin[1])), 10) + ','\n        + parseInt((begin[2] + pos * (end[2] - begin[2])), 10);\n\n    color += ',' + (begin && end ? parseFloat(begin[3] + pos * (end[3] - begin[3])) : 1);\n    color += ')';\n    return color;\n  }\n\n  /**\n   * Changes the color from one to another within certain period of time, invoking callbacks as value is being changed.\n   * @memberOf fabric.util\n   * @param {String} fromColor The starting color in hex or rgb(a) format.\n   * @param {String} toColor The starting color in hex or rgb(a) format.\n   * @param {Number} [duration] Duration of change (in ms).\n   * @param {Object} [options] Animation options\n   * @param {Function} [options.onChange] Callback; invoked on every value change\n   * @param {Function} [options.onComplete] Callback; invoked when value change is completed\n   * @param {Function} [options.colorEasing] Easing function. Note that this function only take two arguments (currentTime, duration). Thus the regular animation easing functions cannot be used.\n   * @param {Function} [options.abort] Additional function with logic. If returns true, onComplete is called.\n   */\n  function animateColor(fromColor, toColor, duration, options) {\n    var startColor = new fabric.Color(fromColor).getSource(),\n        endColor = new fabric.Color(toColor).getSource();\n\n    options = options || {};\n\n    fabric.util.animate(fabric.util.object.extend(options, {\n      duration: duration || 500,\n      startValue: startColor,\n      endValue: endColor,\n      byValue: endColor,\n      easing: function (currentTime, startValue, byValue, duration) {\n        var posValue = options.colorEasing\n          ? options.colorEasing(currentTime, duration)\n          : 1 - Math.cos(currentTime / duration * (Math.PI / 2));\n        return calculateColor(startValue, byValue, posValue);\n      }\n    }));\n  }\n\n  fabric.util.animateColor = animateColor;\n\n})();\n\n\n(function() {\n\n  function normalize(a, c, p, s) {\n    if (a < Math.abs(c)) {\n      a = c;\n      s = p / 4;\n    }\n    else {\n      //handle the 0/0 case:\n      if (c === 0 && a === 0) {\n        s = p / (2 * Math.PI) * Math.asin(1);\n      }\n      else {\n        s = p / (2 * Math.PI) * Math.asin(c / a);\n      }\n    }\n    return { a: a, c: c, p: p, s: s };\n  }\n\n  function elastic(opts, t, d) {\n    return opts.a *\n      Math.pow(2, 10 * (t -= 1)) *\n      Math.sin( (t * d - opts.s) * (2 * Math.PI) / opts.p );\n  }\n\n  /**\n   * Cubic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutCubic(t, b, c, d) {\n    return c * ((t = t / d - 1) * t * t + 1) + b;\n  }\n\n  /**\n   * Cubic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutCubic(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * t * t * t + b;\n    }\n    return c / 2 * ((t -= 2) * t * t + 2) + b;\n  }\n\n  /**\n   * Quartic easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInQuart(t, b, c, d) {\n    return c * (t /= d) * t * t * t + b;\n  }\n\n  /**\n   * Quartic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutQuart(t, b, c, d) {\n    return -c * ((t = t / d - 1) * t * t * t - 1) + b;\n  }\n\n  /**\n   * Quartic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutQuart(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * t * t * t * t + b;\n    }\n    return -c / 2 * ((t -= 2) * t * t * t - 2) + b;\n  }\n\n  /**\n   * Quintic easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInQuint(t, b, c, d) {\n    return c * (t /= d) * t * t * t * t + b;\n  }\n\n  /**\n   * Quintic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutQuint(t, b, c, d) {\n    return c * ((t = t / d - 1) * t * t * t * t + 1) + b;\n  }\n\n  /**\n   * Quintic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutQuint(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * t * t * t * t * t + b;\n    }\n    return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;\n  }\n\n  /**\n   * Sinusoidal easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInSine(t, b, c, d) {\n    return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;\n  }\n\n  /**\n   * Sinusoidal easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutSine(t, b, c, d) {\n    return c * Math.sin(t / d * (Math.PI / 2)) + b;\n  }\n\n  /**\n   * Sinusoidal easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutSine(t, b, c, d) {\n    return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;\n  }\n\n  /**\n   * Exponential easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInExpo(t, b, c, d) {\n    return (t === 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b;\n  }\n\n  /**\n   * Exponential easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutExpo(t, b, c, d) {\n    return (t === d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;\n  }\n\n  /**\n   * Exponential easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutExpo(t, b, c, d) {\n    if (t === 0) {\n      return b;\n    }\n    if (t === d) {\n      return b + c;\n    }\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * Math.pow(2, 10 * (t - 1)) + b;\n    }\n    return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b;\n  }\n\n  /**\n   * Circular easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInCirc(t, b, c, d) {\n    return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;\n  }\n\n  /**\n   * Circular easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutCirc(t, b, c, d) {\n    return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;\n  }\n\n  /**\n   * Circular easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutCirc(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;\n    }\n    return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;\n  }\n\n  /**\n   * Elastic easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInElastic(t, b, c, d) {\n    var s = 1.70158, p = 0, a = c;\n    if (t === 0) {\n      return b;\n    }\n    t /= d;\n    if (t === 1) {\n      return b + c;\n    }\n    if (!p) {\n      p = d * 0.3;\n    }\n    var opts = normalize(a, c, p, s);\n    return -elastic(opts, t, d) + b;\n  }\n\n  /**\n   * Elastic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutElastic(t, b, c, d) {\n    var s = 1.70158, p = 0, a = c;\n    if (t === 0) {\n      return b;\n    }\n    t /= d;\n    if (t === 1) {\n      return b + c;\n    }\n    if (!p) {\n      p = d * 0.3;\n    }\n    var opts = normalize(a, c, p, s);\n    return opts.a * Math.pow(2, -10 * t) * Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p ) + opts.c + b;\n  }\n\n  /**\n   * Elastic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutElastic(t, b, c, d) {\n    var s = 1.70158, p = 0, a = c;\n    if (t === 0) {\n      return b;\n    }\n    t /= d / 2;\n    if (t === 2) {\n      return b + c;\n    }\n    if (!p) {\n      p = d * (0.3 * 1.5);\n    }\n    var opts = normalize(a, c, p, s);\n    if (t < 1) {\n      return -0.5 * elastic(opts, t, d) + b;\n    }\n    return opts.a * Math.pow(2, -10 * (t -= 1)) *\n      Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p ) * 0.5 + opts.c + b;\n  }\n\n  /**\n   * Backwards easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInBack(t, b, c, d, s) {\n    if (s === undefined) {\n      s = 1.70158;\n    }\n    return c * (t /= d) * t * ((s + 1) * t - s) + b;\n  }\n\n  /**\n   * Backwards easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutBack(t, b, c, d, s) {\n    if (s === undefined) {\n      s = 1.70158;\n    }\n    return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;\n  }\n\n  /**\n   * Backwards easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutBack(t, b, c, d, s) {\n    if (s === undefined) {\n      s = 1.70158;\n    }\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;\n    }\n    return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;\n  }\n\n  /**\n   * Bouncing easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInBounce(t, b, c, d) {\n    return c - easeOutBounce (d - t, 0, c, d) + b;\n  }\n\n  /**\n   * Bouncing easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutBounce(t, b, c, d) {\n    if ((t /= d) < (1 / 2.75)) {\n      return c * (7.5625 * t * t) + b;\n    }\n    else if (t < (2 / 2.75)) {\n      return c * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75) + b;\n    }\n    else if (t < (2.5 / 2.75)) {\n      return c * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375) + b;\n    }\n    else {\n      return c * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375) + b;\n    }\n  }\n\n  /**\n   * Bouncing easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutBounce(t, b, c, d) {\n    if (t < d / 2) {\n      return easeInBounce (t * 2, 0, c, d) * 0.5 + b;\n    }\n    return easeOutBounce(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;\n  }\n\n  /**\n   * Easing functions\n   * See <a href=\"http://gizma.com/easing/\">Easing Equations by Robert Penner</a>\n   * @namespace fabric.util.ease\n   */\n  fabric.util.ease = {\n\n    /**\n     * Quadratic easing in\n     * @memberOf fabric.util.ease\n     */\n    easeInQuad: function(t, b, c, d) {\n      return c * (t /= d) * t + b;\n    },\n\n    /**\n     * Quadratic easing out\n     * @memberOf fabric.util.ease\n     */\n    easeOutQuad: function(t, b, c, d) {\n      return -c * (t /= d) * (t - 2) + b;\n    },\n\n    /**\n     * Quadratic easing in and out\n     * @memberOf fabric.util.ease\n     */\n    easeInOutQuad: function(t, b, c, d) {\n      t /= (d / 2);\n      if (t < 1) {\n        return c / 2 * t * t + b;\n      }\n      return -c / 2 * ((--t) * (t - 2) - 1) + b;\n    },\n\n    /**\n     * Cubic easing in\n     * @memberOf fabric.util.ease\n     */\n    easeInCubic: function(t, b, c, d) {\n      return c * (t /= d) * t * t + b;\n    },\n\n    easeOutCubic: easeOutCubic,\n    easeInOutCubic: easeInOutCubic,\n    easeInQuart: easeInQuart,\n    easeOutQuart: easeOutQuart,\n    easeInOutQuart: easeInOutQuart,\n    easeInQuint: easeInQuint,\n    easeOutQuint: easeOutQuint,\n    easeInOutQuint: easeInOutQuint,\n    easeInSine: easeInSine,\n    easeOutSine: easeOutSine,\n    easeInOutSine: easeInOutSine,\n    easeInExpo: easeInExpo,\n    easeOutExpo: easeOutExpo,\n    easeInOutExpo: easeInOutExpo,\n    easeInCirc: easeInCirc,\n    easeOutCirc: easeOutCirc,\n    easeInOutCirc: easeInOutCirc,\n    easeInElastic: easeInElastic,\n    easeOutElastic: easeOutElastic,\n    easeInOutElastic: easeInOutElastic,\n    easeInBack: easeInBack,\n    easeOutBack: easeOutBack,\n    easeInOutBack: easeInOutBack,\n    easeInBounce: easeInBounce,\n    easeOutBounce: easeOutBounce,\n    easeInOutBounce: easeInOutBounce\n  };\n\n})();\n\n\n(function(global) {\n\n  'use strict';\n\n  /**\n   * @name fabric\n   * @namespace\n   */\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      clone = fabric.util.object.clone,\n      toFixed = fabric.util.toFixed,\n      parseUnit = fabric.util.parseUnit,\n      multiplyTransformMatrices = fabric.util.multiplyTransformMatrices,\n\n      svgValidTagNames = ['path', 'circle', 'polygon', 'polyline', 'ellipse', 'rect', 'line',\n        'image', 'text'],\n      svgViewBoxElements = ['symbol', 'image', 'marker', 'pattern', 'view', 'svg'],\n      svgInvalidAncestors = ['pattern', 'defs', 'symbol', 'metadata', 'clipPath', 'mask', 'desc'],\n      svgValidParents = ['symbol', 'g', 'a', 'svg', 'clipPath', 'defs'],\n\n      attributesMap = {\n        cx:                   'left',\n        x:                    'left',\n        r:                    'radius',\n        cy:                   'top',\n        y:                    'top',\n        display:              'visible',\n        visibility:           'visible',\n        transform:            'transformMatrix',\n        'fill-opacity':       'fillOpacity',\n        'fill-rule':          'fillRule',\n        'font-family':        'fontFamily',\n        'font-size':          'fontSize',\n        'font-style':         'fontStyle',\n        'font-weight':        'fontWeight',\n        'letter-spacing':     'charSpacing',\n        'paint-order':        'paintFirst',\n        'stroke-dasharray':   'strokeDashArray',\n        'stroke-dashoffset':  'strokeDashOffset',\n        'stroke-linecap':     'strokeLineCap',\n        'stroke-linejoin':    'strokeLineJoin',\n        'stroke-miterlimit':  'strokeMiterLimit',\n        'stroke-opacity':     'strokeOpacity',\n        'stroke-width':       'strokeWidth',\n        'text-decoration':    'textDecoration',\n        'text-anchor':        'textAnchor',\n        opacity:              'opacity',\n        'clip-path':          'clipPath',\n        'clip-rule':          'clipRule',\n        'vector-effect':      'strokeUniform'\n      },\n\n      colorAttributes = {\n        stroke: 'strokeOpacity',\n        fill:   'fillOpacity'\n      },\n\n      fSize = 'font-size', cPath = 'clip-path';\n\n  fabric.svgValidTagNamesRegEx = getSvgRegex(svgValidTagNames);\n  fabric.svgViewBoxElementsRegEx = getSvgRegex(svgViewBoxElements);\n  fabric.svgInvalidAncestorsRegEx = getSvgRegex(svgInvalidAncestors);\n  fabric.svgValidParentsRegEx = getSvgRegex(svgValidParents);\n\n  fabric.cssRules = { };\n  fabric.gradientDefs = { };\n  fabric.clipPaths = { };\n\n  function normalizeAttr(attr) {\n    // transform attribute names\n    if (attr in attributesMap) {\n      return attributesMap[attr];\n    }\n    return attr;\n  }\n\n  function normalizeValue(attr, value, parentAttributes, fontSize) {\n    var isArray = Object.prototype.toString.call(value) === '[object Array]',\n        parsed;\n\n    if ((attr === 'fill' || attr === 'stroke') && value === 'none') {\n      value = '';\n    }\n    else if (attr === 'vector-effect') {\n      value = value === 'non-scaling-stroke';\n    }\n    else if (attr === 'strokeDashArray') {\n      if (value === 'none') {\n        value = null;\n      }\n      else {\n        value = value.replace(/,/g, ' ').split(/\\s+/).map(parseFloat);\n      }\n    }\n    else if (attr === 'transformMatrix') {\n      if (parentAttributes && parentAttributes.transformMatrix) {\n        value = multiplyTransformMatrices(\n          parentAttributes.transformMatrix, fabric.parseTransformAttribute(value));\n      }\n      else {\n        value = fabric.parseTransformAttribute(value);\n      }\n    }\n    else if (attr === 'visible') {\n      value = value !== 'none' && value !== 'hidden';\n      // display=none on parent element always takes precedence over child element\n      if (parentAttributes && parentAttributes.visible === false) {\n        value = false;\n      }\n    }\n    else if (attr === 'opacity') {\n      value = parseFloat(value);\n      if (parentAttributes && typeof parentAttributes.opacity !== 'undefined') {\n        value *= parentAttributes.opacity;\n      }\n    }\n    else if (attr === 'textAnchor' /* text-anchor */) {\n      value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';\n    }\n    else if (attr === 'charSpacing') {\n      // parseUnit returns px and we convert it to em\n      parsed = parseUnit(value, fontSize) / fontSize * 1000;\n    }\n    else if (attr === 'paintFirst') {\n      var fillIndex = value.indexOf('fill');\n      var strokeIndex = value.indexOf('stroke');\n      var value = 'fill';\n      if (fillIndex > -1 && strokeIndex > -1 && strokeIndex < fillIndex) {\n        value = 'stroke';\n      }\n      else if (fillIndex === -1 && strokeIndex > -1) {\n        value = 'stroke';\n      }\n    }\n    else if (attr === 'href' || attr === 'xlink:href') {\n      return value;\n    }\n    else {\n      parsed = isArray ? value.map(parseUnit) : parseUnit(value, fontSize);\n    }\n\n    return (!isArray && isNaN(parsed) ? value : parsed);\n  }\n\n  /**\n    * @private\n    */\n  function getSvgRegex(arr) {\n    return new RegExp('^(' + arr.join('|') + ')\\\\b', 'i');\n  }\n\n  /**\n   * @private\n   * @param {Object} attributes Array of attributes to parse\n   */\n  function _setStrokeFillOpacity(attributes) {\n    for (var attr in colorAttributes) {\n\n      if (typeof attributes[colorAttributes[attr]] === 'undefined' || attributes[attr] === '') {\n        continue;\n      }\n\n      if (typeof attributes[attr] === 'undefined') {\n        if (!fabric.Object.prototype[attr]) {\n          continue;\n        }\n        attributes[attr] = fabric.Object.prototype[attr];\n      }\n\n      if (attributes[attr].indexOf('url(') === 0) {\n        continue;\n      }\n\n      var color = new fabric.Color(attributes[attr]);\n      attributes[attr] = color.setAlpha(toFixed(color.getAlpha() * attributes[colorAttributes[attr]], 2)).toRgba();\n    }\n    return attributes;\n  }\n\n  /**\n   * @private\n   */\n  function _getMultipleNodes(doc, nodeNames) {\n    var nodeName, nodeArray = [], nodeList, i, len;\n    for (i = 0, len = nodeNames.length; i < len; i++) {\n      nodeName = nodeNames[i];\n      nodeList = doc.getElementsByTagName(nodeName);\n      nodeArray = nodeArray.concat(Array.prototype.slice.call(nodeList));\n    }\n    return nodeArray;\n  }\n\n  /**\n   * Parses \"transform\" attribute, returning an array of values\n   * @static\n   * @function\n   * @memberOf fabric\n   * @param {String} attributeValue String containing attribute value\n   * @return {Array} Array of 6 elements representing transformation matrix\n   */\n  fabric.parseTransformAttribute = (function() {\n    function rotateMatrix(matrix, args) {\n      var cos = fabric.util.cos(args[0]), sin = fabric.util.sin(args[0]),\n          x = 0, y = 0;\n      if (args.length === 3) {\n        x = args[1];\n        y = args[2];\n      }\n\n      matrix[0] = cos;\n      matrix[1] = sin;\n      matrix[2] = -sin;\n      matrix[3] = cos;\n      matrix[4] = x - (cos * x - sin * y);\n      matrix[5] = y - (sin * x + cos * y);\n    }\n\n    function scaleMatrix(matrix, args) {\n      var multiplierX = args[0],\n          multiplierY = (args.length === 2) ? args[1] : args[0];\n\n      matrix[0] = multiplierX;\n      matrix[3] = multiplierY;\n    }\n\n    function skewMatrix(matrix, args, pos) {\n      matrix[pos] = Math.tan(fabric.util.degreesToRadians(args[0]));\n    }\n\n    function translateMatrix(matrix, args) {\n      matrix[4] = args[0];\n      if (args.length === 2) {\n        matrix[5] = args[1];\n      }\n    }\n\n    // identity matrix\n    var iMatrix = fabric.iMatrix,\n\n        // == begin transform regexp\n        number = fabric.reNum,\n\n        commaWsp = '(?:\\\\s+,?\\\\s*|,\\\\s*)',\n\n        skewX = '(?:(skewX)\\\\s*\\\\(\\\\s*(' + number + ')\\\\s*\\\\))',\n\n        skewY = '(?:(skewY)\\\\s*\\\\(\\\\s*(' + number + ')\\\\s*\\\\))',\n\n        rotate = '(?:(rotate)\\\\s*\\\\(\\\\s*(' + number + ')(?:' +\n                    commaWsp + '(' + number + ')' +\n                    commaWsp + '(' + number + '))?\\\\s*\\\\))',\n\n        scale = '(?:(scale)\\\\s*\\\\(\\\\s*(' + number + ')(?:' +\n                    commaWsp + '(' + number + '))?\\\\s*\\\\))',\n\n        translate = '(?:(translate)\\\\s*\\\\(\\\\s*(' + number + ')(?:' +\n                    commaWsp + '(' + number + '))?\\\\s*\\\\))',\n\n        matrix = '(?:(matrix)\\\\s*\\\\(\\\\s*' +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' +\n                  '\\\\s*\\\\))',\n\n        transform = '(?:' +\n                    matrix + '|' +\n                    translate + '|' +\n                    scale + '|' +\n                    rotate + '|' +\n                    skewX + '|' +\n                    skewY +\n                    ')',\n\n        transforms = '(?:' + transform + '(?:' + commaWsp + '*' + transform + ')*' + ')',\n\n        transformList = '^\\\\s*(?:' + transforms + '?)\\\\s*$',\n\n        // http://www.w3.org/TR/SVG/coords.html#TransformAttribute\n        reTransformList = new RegExp(transformList),\n        // == end transform regexp\n\n        reTransform = new RegExp(transform, 'g');\n\n    return function(attributeValue) {\n\n      // start with identity matrix\n      var matrix = iMatrix.concat(),\n          matrices = [];\n\n      // return if no argument was given or\n      // an argument does not match transform attribute regexp\n      if (!attributeValue || (attributeValue && !reTransformList.test(attributeValue))) {\n        return matrix;\n      }\n\n      attributeValue.replace(reTransform, function(match) {\n\n        var m = new RegExp(transform).exec(match).filter(function (match) {\n              // match !== '' && match != null\n              return (!!match);\n            }),\n            operation = m[1],\n            args = m.slice(2).map(parseFloat);\n\n        switch (operation) {\n          case 'translate':\n            translateMatrix(matrix, args);\n            break;\n          case 'rotate':\n            args[0] = fabric.util.degreesToRadians(args[0]);\n            rotateMatrix(matrix, args);\n            break;\n          case 'scale':\n            scaleMatrix(matrix, args);\n            break;\n          case 'skewX':\n            skewMatrix(matrix, args, 2);\n            break;\n          case 'skewY':\n            skewMatrix(matrix, args, 1);\n            break;\n          case 'matrix':\n            matrix = args;\n            break;\n        }\n\n        // snapshot current matrix into matrices array\n        matrices.push(matrix.concat());\n        // reset\n        matrix = iMatrix.concat();\n      });\n\n      var combinedMatrix = matrices[0];\n      while (matrices.length > 1) {\n        matrices.shift();\n        combinedMatrix = fabric.util.multiplyTransformMatrices(combinedMatrix, matrices[0]);\n      }\n      return combinedMatrix;\n    };\n  })();\n\n  /**\n   * @private\n   */\n  function parseStyleString(style, oStyle) {\n    var attr, value;\n    style.replace(/;\\s*$/, '').split(';').forEach(function (chunk) {\n      var pair = chunk.split(':');\n\n      attr = pair[0].trim().toLowerCase();\n      value =  pair[1].trim();\n\n      oStyle[attr] = value;\n    });\n  }\n\n  /**\n   * @private\n   */\n  function parseStyleObject(style, oStyle) {\n    var attr, value;\n    for (var prop in style) {\n      if (typeof style[prop] === 'undefined') {\n        continue;\n      }\n\n      attr = prop.toLowerCase();\n      value = style[prop];\n\n      oStyle[attr] = value;\n    }\n  }\n\n  /**\n   * @private\n   */\n  function getGlobalStylesForElement(element, svgUid) {\n    var styles = { };\n    for (var rule in fabric.cssRules[svgUid]) {\n      if (elementMatchesRule(element, rule.split(' '))) {\n        for (var property in fabric.cssRules[svgUid][rule]) {\n          styles[property] = fabric.cssRules[svgUid][rule][property];\n        }\n      }\n    }\n    return styles;\n  }\n\n  /**\n   * @private\n   */\n  function elementMatchesRule(element, selectors) {\n    var firstMatching, parentMatching = true;\n    //start from rightmost selector.\n    firstMatching = selectorMatches(element, selectors.pop());\n    if (firstMatching && selectors.length) {\n      parentMatching = doesSomeParentMatch(element, selectors);\n    }\n    return firstMatching && parentMatching && (selectors.length === 0);\n  }\n\n  function doesSomeParentMatch(element, selectors) {\n    var selector, parentMatching = true;\n    while (element.parentNode && element.parentNode.nodeType === 1 && selectors.length) {\n      if (parentMatching) {\n        selector = selectors.pop();\n      }\n      element = element.parentNode;\n      parentMatching = selectorMatches(element, selector);\n    }\n    return selectors.length === 0;\n  }\n\n  /**\n   * @private\n   */\n  function selectorMatches(element, selector) {\n    var nodeName = element.nodeName,\n        classNames = element.getAttribute('class'),\n        id = element.getAttribute('id'), matcher, i;\n    // i check if a selector matches slicing away part from it.\n    // if i get empty string i should match\n    matcher = new RegExp('^' + nodeName, 'i');\n    selector = selector.replace(matcher, '');\n    if (id && selector.length) {\n      matcher = new RegExp('#' + id + '(?![a-zA-Z\\\\-]+)', 'i');\n      selector = selector.replace(matcher, '');\n    }\n    if (classNames && selector.length) {\n      classNames = classNames.split(' ');\n      for (i = classNames.length; i--;) {\n        matcher = new RegExp('\\\\.' + classNames[i] + '(?![a-zA-Z\\\\-]+)', 'i');\n        selector = selector.replace(matcher, '');\n      }\n    }\n    return selector.length === 0;\n  }\n\n  /**\n   * @private\n   * to support IE8 missing getElementById on SVGdocument and on node xmlDOM\n   */\n  function elementById(doc, id) {\n    var el;\n    doc.getElementById && (el = doc.getElementById(id));\n    if (el) {\n      return el;\n    }\n    var node, i, len, nodelist = doc.getElementsByTagName('*');\n    for (i = 0, len = nodelist.length; i < len; i++) {\n      node = nodelist[i];\n      if (id === node.getAttribute('id')) {\n        return node;\n      }\n    }\n  }\n\n  /**\n   * @private\n   */\n  function parseUseDirectives(doc) {\n    var nodelist = _getMultipleNodes(doc, ['use', 'svg:use']), i = 0;\n    while (nodelist.length && i < nodelist.length) {\n      var el = nodelist[i],\n          xlink = (el.getAttribute('xlink:href') || el.getAttribute('href')).substr(1),\n          x = el.getAttribute('x') || 0,\n          y = el.getAttribute('y') || 0,\n          el2 = elementById(doc, xlink).cloneNode(true),\n          currentTrans = (el2.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')',\n          parentNode, oldLength = nodelist.length, attr, j, attrs, len, namespace = fabric.svgNS;\n\n      applyViewboxTransform(el2);\n      if (/^svg$/i.test(el2.nodeName)) {\n        var el3 = el2.ownerDocument.createElementNS(namespace, 'g');\n        for (j = 0, attrs = el2.attributes, len = attrs.length; j < len; j++) {\n          attr = attrs.item(j);\n          el3.setAttributeNS(namespace, attr.nodeName, attr.nodeValue);\n        }\n        // el2.firstChild != null\n        while (el2.firstChild) {\n          el3.appendChild(el2.firstChild);\n        }\n        el2 = el3;\n      }\n\n      for (j = 0, attrs = el.attributes, len = attrs.length; j < len; j++) {\n        attr = attrs.item(j);\n        if (attr.nodeName === 'x' || attr.nodeName === 'y' ||\n          attr.nodeName === 'xlink:href' || attr.nodeName === 'href') {\n          continue;\n        }\n\n        if (attr.nodeName === 'transform') {\n          currentTrans = attr.nodeValue + ' ' + currentTrans;\n        }\n        else {\n          el2.setAttribute(attr.nodeName, attr.nodeValue);\n        }\n      }\n\n      el2.setAttribute('transform', currentTrans);\n      el2.setAttribute('instantiated_by_use', '1');\n      el2.removeAttribute('id');\n      parentNode = el.parentNode;\n      parentNode.replaceChild(el2, el);\n      // some browsers do not shorten nodelist after replaceChild (IE8)\n      if (nodelist.length === oldLength) {\n        i++;\n      }\n    }\n  }\n\n  // http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute\n  // matches, e.g.: +14.56e-12, etc.\n  var reViewBoxAttrValue = new RegExp(\n    '^' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*,?' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*,?' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*,?' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*' +\n    '$'\n  );\n\n  /**\n   * Add a <g> element that envelop all child elements and makes the viewbox transformMatrix descend on all elements\n   */\n  function applyViewboxTransform(element) {\n\n    var viewBoxAttr = element.getAttribute('viewBox'),\n        scaleX = 1,\n        scaleY = 1,\n        minX = 0,\n        minY = 0,\n        viewBoxWidth, viewBoxHeight, matrix, el,\n        widthAttr = element.getAttribute('width'),\n        heightAttr = element.getAttribute('height'),\n        x = element.getAttribute('x') || 0,\n        y = element.getAttribute('y') || 0,\n        preserveAspectRatio = element.getAttribute('preserveAspectRatio') || '',\n        missingViewBox = (!viewBoxAttr || !fabric.svgViewBoxElementsRegEx.test(element.nodeName)\n                           || !(viewBoxAttr = viewBoxAttr.match(reViewBoxAttrValue))),\n        missingDimAttr = (!widthAttr || !heightAttr || widthAttr === '100%' || heightAttr === '100%'),\n        toBeParsed = missingViewBox && missingDimAttr,\n        parsedDim = { }, translateMatrix = '', widthDiff = 0, heightDiff = 0;\n\n    parsedDim.width = 0;\n    parsedDim.height = 0;\n    parsedDim.toBeParsed = toBeParsed;\n\n    if (toBeParsed) {\n      return parsedDim;\n    }\n\n    if (missingViewBox) {\n      parsedDim.width = parseUnit(widthAttr);\n      parsedDim.height = parseUnit(heightAttr);\n      return parsedDim;\n    }\n    minX = -parseFloat(viewBoxAttr[1]);\n    minY = -parseFloat(viewBoxAttr[2]);\n    viewBoxWidth = parseFloat(viewBoxAttr[3]);\n    viewBoxHeight = parseFloat(viewBoxAttr[4]);\n    parsedDim.minX = minX;\n    parsedDim.minY = minY;\n    parsedDim.viewBoxWidth = viewBoxWidth;\n    parsedDim.viewBoxHeight = viewBoxHeight;\n    if (!missingDimAttr) {\n      parsedDim.width = parseUnit(widthAttr);\n      parsedDim.height = parseUnit(heightAttr);\n      scaleX = parsedDim.width / viewBoxWidth;\n      scaleY = parsedDim.height / viewBoxHeight;\n    }\n    else {\n      parsedDim.width = viewBoxWidth;\n      parsedDim.height = viewBoxHeight;\n    }\n\n    // default is to preserve aspect ratio\n    preserveAspectRatio = fabric.util.parsePreserveAspectRatioAttribute(preserveAspectRatio);\n    if (preserveAspectRatio.alignX !== 'none') {\n      //translate all container for the effect of Mid, Min, Max\n      if (preserveAspectRatio.meetOrSlice === 'meet') {\n        scaleY = scaleX = (scaleX > scaleY ? scaleY : scaleX);\n        // calculate additional translation to move the viewbox\n      }\n      if (preserveAspectRatio.meetOrSlice === 'slice') {\n        scaleY = scaleX = (scaleX > scaleY ? scaleX : scaleY);\n        // calculate additional translation to move the viewbox\n      }\n      widthDiff = parsedDim.width - viewBoxWidth * scaleX;\n      heightDiff = parsedDim.height - viewBoxHeight * scaleX;\n      if (preserveAspectRatio.alignX === 'Mid') {\n        widthDiff /= 2;\n      }\n      if (preserveAspectRatio.alignY === 'Mid') {\n        heightDiff /= 2;\n      }\n      if (preserveAspectRatio.alignX === 'Min') {\n        widthDiff = 0;\n      }\n      if (preserveAspectRatio.alignY === 'Min') {\n        heightDiff = 0;\n      }\n    }\n\n    if (scaleX === 1 && scaleY === 1 && minX === 0 && minY === 0 && x === 0 && y === 0) {\n      return parsedDim;\n    }\n\n    if (x || y) {\n      translateMatrix = ' translate(' + parseUnit(x) + ' ' + parseUnit(y) + ') ';\n    }\n\n    matrix = translateMatrix + ' matrix(' + scaleX +\n                  ' 0' +\n                  ' 0 ' +\n                  scaleY + ' ' +\n                  (minX * scaleX + widthDiff) + ' ' +\n                  (minY * scaleY + heightDiff) + ') ';\n    parsedDim.viewboxTransform = fabric.parseTransformAttribute(matrix);\n    if (element.nodeName === 'svg') {\n      el = element.ownerDocument.createElementNS(fabric.svgNS, 'g');\n      // element.firstChild != null\n      while (element.firstChild) {\n        el.appendChild(element.firstChild);\n      }\n      element.appendChild(el);\n    }\n    else {\n      el = element;\n      matrix = el.getAttribute('transform') + matrix;\n    }\n    el.setAttribute('transform', matrix);\n    return parsedDim;\n  }\n\n  function hasAncestorWithNodeName(element, nodeName) {\n    while (element && (element = element.parentNode)) {\n      if (element.nodeName && nodeName.test(element.nodeName.replace('svg:', ''))\n        && !element.getAttribute('instantiated_by_use')) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Parses an SVG document, converts it to an array of corresponding fabric.* instances and passes them to a callback\n   * @static\n   * @function\n   * @memberOf fabric\n   * @param {SVGDocument} doc SVG document to parse\n   * @param {Function} callback Callback to call when parsing is finished;\n   * It's being passed an array of elements (parsed from a document).\n   * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n   * @param {Object} [parsingOptions] options for parsing document\n   * @param {String} [parsingOptions.crossOrigin] crossOrigin settings\n   */\n  fabric.parseSVGDocument = function(doc, callback, reviver, parsingOptions) {\n    if (!doc) {\n      return;\n    }\n\n    parseUseDirectives(doc);\n\n    var svgUid =  fabric.Object.__uid++, i, len,\n        options = applyViewboxTransform(doc),\n        descendants = fabric.util.toArray(doc.getElementsByTagName('*'));\n    options.crossOrigin = parsingOptions && parsingOptions.crossOrigin;\n    options.svgUid = svgUid;\n\n    if (descendants.length === 0 && fabric.isLikelyNode) {\n      // we're likely in node, where \"o3-xml\" library fails to gEBTN(\"*\")\n      // https://github.com/ajaxorg/node-o3-xml/issues/21\n      descendants = doc.selectNodes('//*[name(.)!=\"svg\"]');\n      var arr = [];\n      for (i = 0, len = descendants.length; i < len; i++) {\n        arr[i] = descendants[i];\n      }\n      descendants = arr;\n    }\n\n    var elements = descendants.filter(function(el) {\n      applyViewboxTransform(el);\n      return fabric.svgValidTagNamesRegEx.test(el.nodeName.replace('svg:', '')) &&\n            !hasAncestorWithNodeName(el, fabric.svgInvalidAncestorsRegEx); // http://www.w3.org/TR/SVG/struct.html#DefsElement\n    });\n\n    if (!elements || (elements && !elements.length)) {\n      callback && callback([], {});\n      return;\n    }\n    var clipPaths = { };\n    descendants.filter(function(el) {\n      return el.nodeName.replace('svg:', '') === 'clipPath';\n    }).forEach(function(el) {\n      var id = el.getAttribute('id');\n      clipPaths[id] = fabric.util.toArray(el.getElementsByTagName('*')).filter(function(el) {\n        return fabric.svgValidTagNamesRegEx.test(el.nodeName.replace('svg:', ''));\n      });\n    });\n    fabric.gradientDefs[svgUid] = fabric.getGradientDefs(doc);\n    fabric.cssRules[svgUid] = fabric.getCSSRules(doc);\n    fabric.clipPaths[svgUid] = clipPaths;\n    // Precedence of rules:   style > class > attribute\n    fabric.parseElements(elements, function(instances, elements) {\n      if (callback) {\n        callback(instances, options, elements, descendants);\n        delete fabric.gradientDefs[svgUid];\n        delete fabric.cssRules[svgUid];\n        delete fabric.clipPaths[svgUid];\n      }\n    }, clone(options), reviver, parsingOptions);\n  };\n\n  function recursivelyParseGradientsXlink(doc, gradient) {\n    var gradientsAttrs = ['gradientTransform', 'x1', 'x2', 'y1', 'y2', 'gradientUnits', 'cx', 'cy', 'r', 'fx', 'fy'],\n        xlinkAttr = 'xlink:href',\n        xLink = gradient.getAttribute(xlinkAttr).substr(1),\n        referencedGradient = elementById(doc, xLink);\n    if (referencedGradient && referencedGradient.getAttribute(xlinkAttr)) {\n      recursivelyParseGradientsXlink(doc, referencedGradient);\n    }\n    gradientsAttrs.forEach(function(attr) {\n      if (referencedGradient && !gradient.hasAttribute(attr) && referencedGradient.hasAttribute(attr)) {\n        gradient.setAttribute(attr, referencedGradient.getAttribute(attr));\n      }\n    });\n    if (!gradient.children.length) {\n      var referenceClone = referencedGradient.cloneNode(true);\n      while (referenceClone.firstChild) {\n        gradient.appendChild(referenceClone.firstChild);\n      }\n    }\n    gradient.removeAttribute(xlinkAttr);\n  }\n\n  var reFontDeclaration = new RegExp(\n    '(normal|italic)?\\\\s*(normal|small-caps)?\\\\s*' +\n    '(normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900)?\\\\s*(' +\n      fabric.reNum +\n    '(?:px|cm|mm|em|pt|pc|in)*)(?:\\\\/(normal|' + fabric.reNum + '))?\\\\s+(.*)');\n\n  extend(fabric, {\n    /**\n     * Parses a short font declaration, building adding its properties to a style object\n     * @static\n     * @function\n     * @memberOf fabric\n     * @param {String} value font declaration\n     * @param {Object} oStyle definition\n     */\n    parseFontDeclaration: function(value, oStyle) {\n      var match = value.match(reFontDeclaration);\n\n      if (!match) {\n        return;\n      }\n      var fontStyle = match[1],\n          // font variant is not used\n          // fontVariant = match[2],\n          fontWeight = match[3],\n          fontSize = match[4],\n          lineHeight = match[5],\n          fontFamily = match[6];\n\n      if (fontStyle) {\n        oStyle.fontStyle = fontStyle;\n      }\n      if (fontWeight) {\n        oStyle.fontWeight = isNaN(parseFloat(fontWeight)) ? fontWeight : parseFloat(fontWeight);\n      }\n      if (fontSize) {\n        oStyle.fontSize = parseUnit(fontSize);\n      }\n      if (fontFamily) {\n        oStyle.fontFamily = fontFamily;\n      }\n      if (lineHeight) {\n        oStyle.lineHeight = lineHeight === 'normal' ? 1 : lineHeight;\n      }\n    },\n\n    /**\n     * Parses an SVG document, returning all of the gradient declarations found in it\n     * @static\n     * @function\n     * @memberOf fabric\n     * @param {SVGDocument} doc SVG document to parse\n     * @return {Object} Gradient definitions; key corresponds to element id, value -- to gradient definition element\n     */\n    getGradientDefs: function(doc) {\n      var tagArray = [\n            'linearGradient',\n            'radialGradient',\n            'svg:linearGradient',\n            'svg:radialGradient'],\n          elList = _getMultipleNodes(doc, tagArray),\n          el, j = 0, gradientDefs = { };\n      j = elList.length;\n      while (j--) {\n        el = elList[j];\n        if (el.getAttribute('xlink:href')) {\n          recursivelyParseGradientsXlink(doc, el);\n        }\n        gradientDefs[el.getAttribute('id')] = el;\n      }\n      return gradientDefs;\n    },\n\n    /**\n     * Returns an object of attributes' name/value, given element and an array of attribute names;\n     * Parses parent \"g\" nodes recursively upwards.\n     * @static\n     * @memberOf fabric\n     * @param {DOMElement} element Element to parse\n     * @param {Array} attributes Array of attributes to parse\n     * @return {Object} object containing parsed attributes' names/values\n     */\n    parseAttributes: function(element, attributes, svgUid) {\n\n      if (!element) {\n        return;\n      }\n\n      var value,\n          parentAttributes = { },\n          fontSize, parentFontSize;\n\n      if (typeof svgUid === 'undefined') {\n        svgUid = element.getAttribute('svgUid');\n      }\n      // if there's a parent container (`g` or `a` or `symbol` node), parse its attributes recursively upwards\n      if (element.parentNode && fabric.svgValidParentsRegEx.test(element.parentNode.nodeName)) {\n        parentAttributes = fabric.parseAttributes(element.parentNode, attributes, svgUid);\n      }\n\n      var ownAttributes = attributes.reduce(function(memo, attr) {\n        value = element.getAttribute(attr);\n        if (value) { // eslint-disable-line\n          memo[attr] = value;\n        }\n        return memo;\n      }, { });\n      // add values parsed from style, which take precedence over attributes\n      // (see: http://www.w3.org/TR/SVG/styling.html#UsingPresentationAttributes)\n      var cssAttrs = extend(\n        getGlobalStylesForElement(element, svgUid),\n        fabric.parseStyleAttribute(element)\n      );\n      ownAttributes = extend(\n        ownAttributes,\n        cssAttrs\n      );\n      if (cssAttrs[cPath]) {\n        element.setAttribute(cPath, cssAttrs[cPath]);\n      }\n      fontSize = parentFontSize = parentAttributes.fontSize || fabric.Text.DEFAULT_SVG_FONT_SIZE;\n      if (ownAttributes[fSize]) {\n        // looks like the minimum should be 9px when dealing with ems. this is what looks like in browsers.\n        ownAttributes[fSize] = fontSize = parseUnit(ownAttributes[fSize], parentFontSize);\n      }\n\n      var normalizedAttr, normalizedValue, normalizedStyle = {};\n      for (var attr in ownAttributes) {\n        normalizedAttr = normalizeAttr(attr);\n        normalizedValue = normalizeValue(normalizedAttr, ownAttributes[attr], parentAttributes, fontSize);\n        normalizedStyle[normalizedAttr] = normalizedValue;\n      }\n      if (normalizedStyle && normalizedStyle.font) {\n        fabric.parseFontDeclaration(normalizedStyle.font, normalizedStyle);\n      }\n      var mergedAttrs = extend(parentAttributes, normalizedStyle);\n      return fabric.svgValidParentsRegEx.test(element.nodeName) ? mergedAttrs : _setStrokeFillOpacity(mergedAttrs);\n    },\n\n    /**\n     * Transforms an array of svg elements to corresponding fabric.* instances\n     * @static\n     * @memberOf fabric\n     * @param {Array} elements Array of elements to parse\n     * @param {Function} callback Being passed an array of fabric instances (transformed from SVG elements)\n     * @param {Object} [options] Options object\n     * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n     */\n    parseElements: function(elements, callback, options, reviver, parsingOptions) {\n      new fabric.ElementsParser(elements, callback, options, reviver, parsingOptions).parse();\n    },\n\n    /**\n     * Parses \"style\" attribute, retuning an object with values\n     * @static\n     * @memberOf fabric\n     * @param {SVGElement} element Element to parse\n     * @return {Object} Objects with values parsed from style attribute of an element\n     */\n    parseStyleAttribute: function(element) {\n      var oStyle = { },\n          style = element.getAttribute('style');\n\n      if (!style) {\n        return oStyle;\n      }\n\n      if (typeof style === 'string') {\n        parseStyleString(style, oStyle);\n      }\n      else {\n        parseStyleObject(style, oStyle);\n      }\n\n      return oStyle;\n    },\n\n    /**\n     * Parses \"points\" attribute, returning an array of values\n     * @static\n     * @memberOf fabric\n     * @param {String} points points attribute string\n     * @return {Array} array of points\n     */\n    parsePointsAttribute: function(points) {\n\n      // points attribute is required and must not be empty\n      if (!points) {\n        return null;\n      }\n\n      // replace commas with whitespace and remove bookending whitespace\n      points = points.replace(/,/g, ' ').trim();\n\n      points = points.split(/\\s+/);\n      var parsedPoints = [], i, len;\n\n      for (i = 0, len = points.length; i < len; i += 2) {\n        parsedPoints.push({\n          x: parseFloat(points[i]),\n          y: parseFloat(points[i + 1])\n        });\n      }\n\n      // odd number of points is an error\n      // if (parsedPoints.length % 2 !== 0) {\n      //   return null;\n      // }\n\n      return parsedPoints;\n    },\n\n    /**\n     * Returns CSS rules for a given SVG document\n     * @static\n     * @function\n     * @memberOf fabric\n     * @param {SVGDocument} doc SVG document to parse\n     * @return {Object} CSS rules of this document\n     */\n    getCSSRules: function(doc) {\n      var styles = doc.getElementsByTagName('style'), i, len,\n          allRules = { }, rules;\n\n      // very crude parsing of style contents\n      for (i = 0, len = styles.length; i < len; i++) {\n        // <style/> could produce `undefined`, covering this case with ''\n        var styleContents = styles[i].textContent || '';\n\n        // remove comments\n        styleContents = styleContents.replace(/\\/\\*[\\s\\S]*?\\*\\//g, '');\n        if (styleContents.trim() === '') {\n          continue;\n        }\n        rules = styleContents.match(/[^{]*\\{[\\s\\S]*?\\}/g);\n        rules = rules.map(function(rule) { return rule.trim(); });\n        // eslint-disable-next-line no-loop-func\n        rules.forEach(function(rule) {\n\n          var match = rule.match(/([\\s\\S]*?)\\s*\\{([^}]*)\\}/),\n              ruleObj = { }, declaration = match[2].trim(),\n              propertyValuePairs = declaration.replace(/;$/, '').split(/\\s*;\\s*/);\n\n          for (i = 0, len = propertyValuePairs.length; i < len; i++) {\n            var pair = propertyValuePairs[i].split(/\\s*:\\s*/),\n                property = pair[0],\n                value = pair[1];\n            ruleObj[property] = value;\n          }\n          rule = match[1];\n          rule.split(',').forEach(function(_rule) {\n            _rule = _rule.replace(/^svg/i, '').trim();\n            if (_rule === '') {\n              return;\n            }\n            if (allRules[_rule]) {\n              fabric.util.object.extend(allRules[_rule], ruleObj);\n            }\n            else {\n              allRules[_rule] = fabric.util.object.clone(ruleObj);\n            }\n          });\n        });\n      }\n      return allRules;\n    },\n\n    /**\n     * Takes url corresponding to an SVG document, and parses it into a set of fabric objects.\n     * Note that SVG is fetched via XMLHttpRequest, so it needs to conform to SOP (Same Origin Policy)\n     * @memberOf fabric\n     * @param {String} url\n     * @param {Function} callback\n     * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n     * @param {Object} [options] Object containing options for parsing\n     * @param {String} [options.crossOrigin] crossOrigin crossOrigin setting to use for external resources\n     */\n    loadSVGFromURL: function(url, callback, reviver, options) {\n\n      url = url.replace(/^\\n\\s*/, '').trim();\n      new fabric.util.request(url, {\n        method: 'get',\n        onComplete: onComplete\n      });\n\n      function onComplete(r) {\n\n        var xml = r.responseXML;\n        if (xml && !xml.documentElement && fabric.window.ActiveXObject && r.responseText) {\n          xml = new ActiveXObject('Microsoft.XMLDOM');\n          xml.async = 'false';\n          //IE chokes on DOCTYPE\n          xml.loadXML(r.responseText.replace(/<!DOCTYPE[\\s\\S]*?(\\[[\\s\\S]*\\])*?>/i, ''));\n        }\n        if (!xml || !xml.documentElement) {\n          callback && callback(null);\n          return false;\n        }\n\n        fabric.parseSVGDocument(xml.documentElement, function (results, _options, elements, allElements) {\n          callback && callback(results, _options, elements, allElements);\n        }, reviver, options);\n      }\n    },\n\n    /**\n     * Takes string corresponding to an SVG document, and parses it into a set of fabric objects\n     * @memberOf fabric\n     * @param {String} string\n     * @param {Function} callback\n     * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n     * @param {Object} [options] Object containing options for parsing\n     * @param {String} [options.crossOrigin] crossOrigin crossOrigin setting to use for external resources\n     */\n    loadSVGFromString: function(string, callback, reviver, options) {\n      string = string.trim();\n      var doc;\n      if (typeof fabric.window.DOMParser !== 'undefined') {\n        var parser = new fabric.window.DOMParser();\n        if (parser && parser.parseFromString) {\n          doc = parser.parseFromString(string, 'text/xml');\n        }\n      }\n      else if (fabric.window.ActiveXObject) {\n        doc = new ActiveXObject('Microsoft.XMLDOM');\n        doc.async = 'false';\n        // IE chokes on DOCTYPE\n        doc.loadXML(string.replace(/<!DOCTYPE[\\s\\S]*?(\\[[\\s\\S]*\\])*?>/i, ''));\n      }\n\n      fabric.parseSVGDocument(doc.documentElement, function (results, _options, elements, allElements) {\n        callback(results, _options, elements, allElements);\n      }, reviver, options);\n    }\n  });\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\nfabric.ElementsParser = function(elements, callback, options, reviver, parsingOptions, doc) {\n  this.elements = elements;\n  this.callback = callback;\n  this.options = options;\n  this.reviver = reviver;\n  this.svgUid = (options && options.svgUid) || 0;\n  this.parsingOptions = parsingOptions;\n  this.regexUrl = /^url\\(['\"]?#([^'\"]+)['\"]?\\)/g;\n  this.doc = doc;\n};\n\n(function(proto) {\n  proto.parse = function() {\n    this.instances = new Array(this.elements.length);\n    this.numElements = this.elements.length;\n    this.createObjects();\n  };\n\n  proto.createObjects = function() {\n    var _this = this;\n    this.elements.forEach(function(element, i) {\n      element.setAttribute('svgUid', _this.svgUid);\n      _this.createObject(element, i);\n    });\n  };\n\n  proto.findTag = function(el) {\n    return fabric[fabric.util.string.capitalize(el.tagName.replace('svg:', ''))];\n  };\n\n  proto.createObject = function(el, index) {\n    var klass = this.findTag(el);\n    if (klass && klass.fromElement) {\n      try {\n        klass.fromElement(el, this.createCallback(index, el), this.options);\n      }\n      catch (err) {\n        fabric.log(err);\n      }\n    }\n    else {\n      this.checkIfDone();\n    }\n  };\n\n  proto.createCallback = function(index, el) {\n    var _this = this;\n    return function(obj) {\n      var _options;\n      _this.resolveGradient(obj, el, 'fill');\n      _this.resolveGradient(obj, el, 'stroke');\n      if (obj instanceof fabric.Image && obj._originalElement) {\n        _options = obj.parsePreserveAspectRatioAttribute(el);\n      }\n      obj._removeTransformMatrix(_options);\n      _this.resolveClipPath(obj, el);\n      _this.reviver && _this.reviver(el, obj);\n      _this.instances[index] = obj;\n      _this.checkIfDone();\n    };\n  };\n\n  proto.extractPropertyDefinition = function(obj, property, storage) {\n    var value = obj[property], regex = this.regexUrl;\n    if (!regex.test(value)) {\n      return;\n    }\n    regex.lastIndex = 0;\n    var id = regex.exec(value)[1];\n    regex.lastIndex = 0;\n    return fabric[storage][this.svgUid][id];\n  };\n\n  proto.resolveGradient = function(obj, el, property) {\n    var gradientDef = this.extractPropertyDefinition(obj, property, 'gradientDefs');\n    if (gradientDef) {\n      var opacityAttr = el.getAttribute(property + '-opacity');\n      var gradient = fabric.Gradient.fromElement(gradientDef, obj, opacityAttr, this.options);\n      obj.set(property, gradient);\n    }\n  };\n\n  proto.createClipPathCallback = function(obj, container) {\n    return function(_newObj) {\n      _newObj._removeTransformMatrix();\n      _newObj.fillRule = _newObj.clipRule;\n      container.push(_newObj);\n    };\n  };\n\n  proto.resolveClipPath = function(obj, usingElement) {\n    var clipPath = this.extractPropertyDefinition(obj, 'clipPath', 'clipPaths'),\n        element, klass, objTransformInv, container, gTransform, options;\n    if (clipPath) {\n      container = [];\n      objTransformInv = fabric.util.invertTransform(obj.calcTransformMatrix());\n      // move the clipPath tag as sibling to the real element that is using it\n      var clipPathTag = clipPath[0].parentNode;\n      var clipPathOwner = usingElement;\n      while (clipPathOwner.parentNode && clipPathOwner.getAttribute('clip-path') !== obj.clipPath) {\n        clipPathOwner = clipPathOwner.parentNode;\n      }\n      clipPathOwner.parentNode.appendChild(clipPathTag);\n      for (var i = 0; i < clipPath.length; i++) {\n        element = clipPath[i];\n        klass = this.findTag(element);\n        klass.fromElement(\n          element,\n          this.createClipPathCallback(obj, container),\n          this.options\n        );\n      }\n      if (container.length === 1) {\n        clipPath = container[0];\n      }\n      else {\n        clipPath = new fabric.Group(container);\n      }\n      gTransform = fabric.util.multiplyTransformMatrices(\n        objTransformInv,\n        clipPath.calcTransformMatrix()\n      );\n      if (clipPath.clipPath) {\n        this.resolveClipPath(clipPath, clipPathOwner);\n      }\n      var options = fabric.util.qrDecompose(gTransform);\n      clipPath.flipX = false;\n      clipPath.flipY = false;\n      clipPath.set('scaleX', options.scaleX);\n      clipPath.set('scaleY', options.scaleY);\n      clipPath.angle = options.angle;\n      clipPath.skewX = options.skewX;\n      clipPath.skewY = 0;\n      clipPath.setPositionByOrigin({ x: options.translateX, y: options.translateY }, 'center', 'center');\n      obj.clipPath = clipPath;\n    }\n    else {\n      // if clip-path does not resolve to any element, delete the property.\n      delete obj.clipPath;\n    }\n  };\n\n  proto.checkIfDone = function() {\n    if (--this.numElements === 0) {\n      this.instances = this.instances.filter(function(el) {\n        // eslint-disable-next-line no-eq-null, eqeqeq\n        return el != null;\n      });\n      this.callback(this.instances, this.elements);\n    }\n  };\n})(fabric.ElementsParser.prototype);\n\n\n(function(global) {\n\n  'use strict';\n\n  /* Adaptation of work of Kevin Lindsey (kevin@kevlindev.com) */\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Point) {\n    fabric.warn('fabric.Point is already defined');\n    return;\n  }\n\n  fabric.Point = Point;\n\n  /**\n   * Point class\n   * @class fabric.Point\n   * @memberOf fabric\n   * @constructor\n   * @param {Number} x\n   * @param {Number} y\n   * @return {fabric.Point} thisArg\n   */\n  function Point(x, y) {\n    this.x = x;\n    this.y = y;\n  }\n\n  Point.prototype = /** @lends fabric.Point.prototype */ {\n\n    type: 'point',\n\n    constructor: Point,\n\n    /**\n     * Adds another point to this one and returns another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point} new Point instance with added values\n     */\n    add: function (that) {\n      return new Point(this.x + that.x, this.y + that.y);\n    },\n\n    /**\n     * Adds another point to this one\n     * @param {fabric.Point} that\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    addEquals: function (that) {\n      this.x += that.x;\n      this.y += that.y;\n      return this;\n    },\n\n    /**\n     * Adds value to this point and returns a new one\n     * @param {Number} scalar\n     * @return {fabric.Point} new Point with added value\n     */\n    scalarAdd: function (scalar) {\n      return new Point(this.x + scalar, this.y + scalar);\n    },\n\n    /**\n     * Adds value to this point\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    scalarAddEquals: function (scalar) {\n      this.x += scalar;\n      this.y += scalar;\n      return this;\n    },\n\n    /**\n     * Subtracts another point from this point and returns a new one\n     * @param {fabric.Point} that\n     * @return {fabric.Point} new Point object with subtracted values\n     */\n    subtract: function (that) {\n      return new Point(this.x - that.x, this.y - that.y);\n    },\n\n    /**\n     * Subtracts another point from this point\n     * @param {fabric.Point} that\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    subtractEquals: function (that) {\n      this.x -= that.x;\n      this.y -= that.y;\n      return this;\n    },\n\n    /**\n     * Subtracts value from this point and returns a new one\n     * @param {Number} scalar\n     * @return {fabric.Point}\n     */\n    scalarSubtract: function (scalar) {\n      return new Point(this.x - scalar, this.y - scalar);\n    },\n\n    /**\n     * Subtracts value from this point\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    scalarSubtractEquals: function (scalar) {\n      this.x -= scalar;\n      this.y -= scalar;\n      return this;\n    },\n\n    /**\n     * Multiplies this point by a value and returns a new one\n     * TODO: rename in scalarMultiply in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point}\n     */\n    multiply: function (scalar) {\n      return new Point(this.x * scalar, this.y * scalar);\n    },\n\n    /**\n     * Multiplies this point by a value\n     * TODO: rename in scalarMultiplyEquals in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    multiplyEquals: function (scalar) {\n      this.x *= scalar;\n      this.y *= scalar;\n      return this;\n    },\n\n    /**\n     * Divides this point by a value and returns a new one\n     * TODO: rename in scalarDivide in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point}\n     */\n    divide: function (scalar) {\n      return new Point(this.x / scalar, this.y / scalar);\n    },\n\n    /**\n     * Divides this point by a value\n     * TODO: rename in scalarDivideEquals in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    divideEquals: function (scalar) {\n      this.x /= scalar;\n      this.y /= scalar;\n      return this;\n    },\n\n    /**\n     * Returns true if this point is equal to another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    eq: function (that) {\n      return (this.x === that.x && this.y === that.y);\n    },\n\n    /**\n     * Returns true if this point is less than another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    lt: function (that) {\n      return (this.x < that.x && this.y < that.y);\n    },\n\n    /**\n     * Returns true if this point is less than or equal to another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    lte: function (that) {\n      return (this.x <= that.x && this.y <= that.y);\n    },\n\n    /**\n\n     * Returns true if this point is greater another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    gt: function (that) {\n      return (this.x > that.x && this.y > that.y);\n    },\n\n    /**\n     * Returns true if this point is greater than or equal to another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    gte: function (that) {\n      return (this.x >= that.x && this.y >= that.y);\n    },\n\n    /**\n     * Returns new point which is the result of linear interpolation with this one and another one\n     * @param {fabric.Point} that\n     * @param {Number} t , position of interpolation, between 0 and 1 default 0.5\n     * @return {fabric.Point}\n     */\n    lerp: function (that, t) {\n      if (typeof t === 'undefined') {\n        t = 0.5;\n      }\n      t = Math.max(Math.min(1, t), 0);\n      return new Point(this.x + (that.x - this.x) * t, this.y + (that.y - this.y) * t);\n    },\n\n    /**\n     * Returns distance from this point and another one\n     * @param {fabric.Point} that\n     * @return {Number}\n     */\n    distanceFrom: function (that) {\n      var dx = this.x - that.x,\n          dy = this.y - that.y;\n      return Math.sqrt(dx * dx + dy * dy);\n    },\n\n    /**\n     * Returns the point between this point and another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point}\n     */\n    midPointFrom: function (that) {\n      return this.lerp(that);\n    },\n\n    /**\n     * Returns a new point which is the min of this and another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point}\n     */\n    min: function (that) {\n      return new Point(Math.min(this.x, that.x), Math.min(this.y, that.y));\n    },\n\n    /**\n     * Returns a new point which is the max of this and another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point}\n     */\n    max: function (that) {\n      return new Point(Math.max(this.x, that.x), Math.max(this.y, that.y));\n    },\n\n    /**\n     * Returns string representation of this point\n     * @return {String}\n     */\n    toString: function () {\n      return this.x + ',' + this.y;\n    },\n\n    /**\n     * Sets x/y of this point\n     * @param {Number} x\n     * @param {Number} y\n     * @chainable\n     */\n    setXY: function (x, y) {\n      this.x = x;\n      this.y = y;\n      return this;\n    },\n\n    /**\n     * Sets x of this point\n     * @param {Number} x\n     * @chainable\n     */\n    setX: function (x) {\n      this.x = x;\n      return this;\n    },\n\n    /**\n     * Sets y of this point\n     * @param {Number} y\n     * @chainable\n     */\n    setY: function (y) {\n      this.y = y;\n      return this;\n    },\n\n    /**\n     * Sets x/y of this point from another point\n     * @param {fabric.Point} that\n     * @chainable\n     */\n    setFromPoint: function (that) {\n      this.x = that.x;\n      this.y = that.y;\n      return this;\n    },\n\n    /**\n     * Swaps x/y of this point and another point\n     * @param {fabric.Point} that\n     */\n    swap: function (that) {\n      var x = this.x,\n          y = this.y;\n      this.x = that.x;\n      this.y = that.y;\n      that.x = x;\n      that.y = y;\n    },\n\n    /**\n     * return a cloned instance of the point\n     * @return {fabric.Point}\n     */\n    clone: function () {\n      return new Point(this.x, this.y);\n    }\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  /* Adaptation of work of Kevin Lindsey (kevin@kevlindev.com) */\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Intersection) {\n    fabric.warn('fabric.Intersection is already defined');\n    return;\n  }\n\n  /**\n   * Intersection class\n   * @class fabric.Intersection\n   * @memberOf fabric\n   * @constructor\n   */\n  function Intersection(status) {\n    this.status = status;\n    this.points = [];\n  }\n\n  fabric.Intersection = Intersection;\n\n  fabric.Intersection.prototype = /** @lends fabric.Intersection.prototype */ {\n\n    constructor: Intersection,\n\n    /**\n     * Appends a point to intersection\n     * @param {fabric.Point} point\n     * @return {fabric.Intersection} thisArg\n     * @chainable\n     */\n    appendPoint: function (point) {\n      this.points.push(point);\n      return this;\n    },\n\n    /**\n     * Appends points to intersection\n     * @param {Array} points\n     * @return {fabric.Intersection} thisArg\n     * @chainable\n     */\n    appendPoints: function (points) {\n      this.points = this.points.concat(points);\n      return this;\n    }\n  };\n\n  /**\n   * Checks if one line intersects another\n   * TODO: rename in intersectSegmentSegment\n   * @static\n   * @param {fabric.Point} a1\n   * @param {fabric.Point} a2\n   * @param {fabric.Point} b1\n   * @param {fabric.Point} b2\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectLineLine = function (a1, a2, b1, b2) {\n    var result,\n        uaT = (b2.x - b1.x) * (a1.y - b1.y) - (b2.y - b1.y) * (a1.x - b1.x),\n        ubT = (a2.x - a1.x) * (a1.y - b1.y) - (a2.y - a1.y) * (a1.x - b1.x),\n        uB = (b2.y - b1.y) * (a2.x - a1.x) - (b2.x - b1.x) * (a2.y - a1.y);\n    if (uB !== 0) {\n      var ua = uaT / uB,\n          ub = ubT / uB;\n      if (0 <= ua && ua <= 1 && 0 <= ub && ub <= 1) {\n        result = new Intersection('Intersection');\n        result.appendPoint(new fabric.Point(a1.x + ua * (a2.x - a1.x), a1.y + ua * (a2.y - a1.y)));\n      }\n      else {\n        result = new Intersection();\n      }\n    }\n    else {\n      if (uaT === 0 || ubT === 0) {\n        result = new Intersection('Coincident');\n      }\n      else {\n        result = new Intersection('Parallel');\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Checks if line intersects polygon\n   * TODO: rename in intersectSegmentPolygon\n   * fix detection of coincident\n   * @static\n   * @param {fabric.Point} a1\n   * @param {fabric.Point} a2\n   * @param {Array} points\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectLinePolygon = function(a1, a2, points) {\n    var result = new Intersection(),\n        length = points.length,\n        b1, b2, inter, i;\n\n    for (i = 0; i < length; i++) {\n      b1 = points[i];\n      b2 = points[(i + 1) % length];\n      inter = Intersection.intersectLineLine(a1, a2, b1, b2);\n\n      result.appendPoints(inter.points);\n    }\n    if (result.points.length > 0) {\n      result.status = 'Intersection';\n    }\n    return result;\n  };\n\n  /**\n   * Checks if polygon intersects another polygon\n   * @static\n   * @param {Array} points1\n   * @param {Array} points2\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectPolygonPolygon = function (points1, points2) {\n    var result = new Intersection(),\n        length = points1.length, i;\n\n    for (i = 0; i < length; i++) {\n      var a1 = points1[i],\n          a2 = points1[(i + 1) % length],\n          inter = Intersection.intersectLinePolygon(a1, a2, points2);\n\n      result.appendPoints(inter.points);\n    }\n    if (result.points.length > 0) {\n      result.status = 'Intersection';\n    }\n    return result;\n  };\n\n  /**\n   * Checks if polygon intersects rectangle\n   * @static\n   * @param {Array} points\n   * @param {fabric.Point} r1\n   * @param {fabric.Point} r2\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectPolygonRectangle = function (points, r1, r2) {\n    var min = r1.min(r2),\n        max = r1.max(r2),\n        topRight = new fabric.Point(max.x, min.y),\n        bottomLeft = new fabric.Point(min.x, max.y),\n        inter1 = Intersection.intersectLinePolygon(min, topRight, points),\n        inter2 = Intersection.intersectLinePolygon(topRight, max, points),\n        inter3 = Intersection.intersectLinePolygon(max, bottomLeft, points),\n        inter4 = Intersection.intersectLinePolygon(bottomLeft, min, points),\n        result = new Intersection();\n\n    result.appendPoints(inter1.points);\n    result.appendPoints(inter2.points);\n    result.appendPoints(inter3.points);\n    result.appendPoints(inter4.points);\n\n    if (result.points.length > 0) {\n      result.status = 'Intersection';\n    }\n    return result;\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Color) {\n    fabric.warn('fabric.Color is already defined.');\n    return;\n  }\n\n  /**\n   * Color class\n   * The purpose of {@link fabric.Color} is to abstract and encapsulate common color operations;\n   * {@link fabric.Color} is a constructor and creates instances of {@link fabric.Color} objects.\n   *\n   * @class fabric.Color\n   * @param {String} color optional in hex or rgb(a) or hsl format or from known color list\n   * @return {fabric.Color} thisArg\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2/#colors}\n   */\n  function Color(color) {\n    if (!color) {\n      this.setSource([0, 0, 0, 1]);\n    }\n    else {\n      this._tryParsingColor(color);\n    }\n  }\n\n  fabric.Color = Color;\n\n  fabric.Color.prototype = /** @lends fabric.Color.prototype */ {\n\n    /**\n     * @private\n     * @param {String|Array} color Color value to parse\n     */\n    _tryParsingColor: function(color) {\n      var source;\n\n      if (color in Color.colorNameMap) {\n        color = Color.colorNameMap[color];\n      }\n\n      if (color === 'transparent') {\n        source = [255, 255, 255, 0];\n      }\n\n      if (!source) {\n        source = Color.sourceFromHex(color);\n      }\n      if (!source) {\n        source = Color.sourceFromRgb(color);\n      }\n      if (!source) {\n        source = Color.sourceFromHsl(color);\n      }\n      if (!source) {\n        //if color is not recognize let's make black as canvas does\n        source = [0, 0, 0, 1];\n      }\n      if (source) {\n        this.setSource(source);\n      }\n    },\n\n    /**\n     * Adapted from <a href=\"https://rawgithub.com/mjijackson/mjijackson.github.com/master/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript.html\">https://github.com/mjijackson</a>\n     * @private\n     * @param {Number} r Red color value\n     * @param {Number} g Green color value\n     * @param {Number} b Blue color value\n     * @return {Array} Hsl color\n     */\n    _rgbToHsl: function(r, g, b) {\n      r /= 255; g /= 255; b /= 255;\n\n      var h, s, l,\n          max = fabric.util.array.max([r, g, b]),\n          min = fabric.util.array.min([r, g, b]);\n\n      l = (max + min) / 2;\n\n      if (max === min) {\n        h = s = 0; // achromatic\n      }\n      else {\n        var d = max - min;\n        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);\n        switch (max) {\n          case r:\n            h = (g - b) / d + (g < b ? 6 : 0);\n            break;\n          case g:\n            h = (b - r) / d + 2;\n            break;\n          case b:\n            h = (r - g) / d + 4;\n            break;\n        }\n        h /= 6;\n      }\n\n      return [\n        Math.round(h * 360),\n        Math.round(s * 100),\n        Math.round(l * 100)\n      ];\n    },\n\n    /**\n     * Returns source of this color (where source is an array representation; ex: [200, 200, 100, 1])\n     * @return {Array}\n     */\n    getSource: function() {\n      return this._source;\n    },\n\n    /**\n     * Sets source of this color (where source is an array representation; ex: [200, 200, 100, 1])\n     * @param {Array} source\n     */\n    setSource: function(source) {\n      this._source = source;\n    },\n\n    /**\n     * Returns color representation in RGB format\n     * @return {String} ex: rgb(0-255,0-255,0-255)\n     */\n    toRgb: function() {\n      var source = this.getSource();\n      return 'rgb(' + source[0] + ',' + source[1] + ',' + source[2] + ')';\n    },\n\n    /**\n     * Returns color representation in RGBA format\n     * @return {String} ex: rgba(0-255,0-255,0-255,0-1)\n     */\n    toRgba: function() {\n      var source = this.getSource();\n      return 'rgba(' + source[0] + ',' + source[1] + ',' + source[2] + ',' + source[3] + ')';\n    },\n\n    /**\n     * Returns color representation in HSL format\n     * @return {String} ex: hsl(0-360,0%-100%,0%-100%)\n     */\n    toHsl: function() {\n      var source = this.getSource(),\n          hsl = this._rgbToHsl(source[0], source[1], source[2]);\n\n      return 'hsl(' + hsl[0] + ',' + hsl[1] + '%,' + hsl[2] + '%)';\n    },\n\n    /**\n     * Returns color representation in HSLA format\n     * @return {String} ex: hsla(0-360,0%-100%,0%-100%,0-1)\n     */\n    toHsla: function() {\n      var source = this.getSource(),\n          hsl = this._rgbToHsl(source[0], source[1], source[2]);\n\n      return 'hsla(' + hsl[0] + ',' + hsl[1] + '%,' + hsl[2] + '%,' + source[3] + ')';\n    },\n\n    /**\n     * Returns color representation in HEX format\n     * @return {String} ex: FF5555\n     */\n    toHex: function() {\n      var source = this.getSource(), r, g, b;\n\n      r = source[0].toString(16);\n      r = (r.length === 1) ? ('0' + r) : r;\n\n      g = source[1].toString(16);\n      g = (g.length === 1) ? ('0' + g) : g;\n\n      b = source[2].toString(16);\n      b = (b.length === 1) ? ('0' + b) : b;\n\n      return r.toUpperCase() + g.toUpperCase() + b.toUpperCase();\n    },\n\n    /**\n     * Returns color representation in HEXA format\n     * @return {String} ex: FF5555CC\n     */\n    toHexa: function() {\n      var source = this.getSource(), a;\n\n      a = Math.round(source[3] * 255);\n      a = a.toString(16);\n      a = (a.length === 1) ? ('0' + a) : a;\n\n      return this.toHex() + a.toUpperCase();\n    },\n\n    /**\n     * Gets value of alpha channel for this color\n     * @return {Number} 0-1\n     */\n    getAlpha: function() {\n      return this.getSource()[3];\n    },\n\n    /**\n     * Sets value of alpha channel for this color\n     * @param {Number} alpha Alpha value 0-1\n     * @return {fabric.Color} thisArg\n     */\n    setAlpha: function(alpha) {\n      var source = this.getSource();\n      source[3] = alpha;\n      this.setSource(source);\n      return this;\n    },\n\n    /**\n     * Transforms color to its grayscale representation\n     * @return {fabric.Color} thisArg\n     */\n    toGrayscale: function() {\n      var source = this.getSource(),\n          average = parseInt((source[0] * 0.3 + source[1] * 0.59 + source[2] * 0.11).toFixed(0), 10),\n          currentAlpha = source[3];\n      this.setSource([average, average, average, currentAlpha]);\n      return this;\n    },\n\n    /**\n     * Transforms color to its black and white representation\n     * @param {Number} threshold\n     * @return {fabric.Color} thisArg\n     */\n    toBlackWhite: function(threshold) {\n      var source = this.getSource(),\n          average = (source[0] * 0.3 + source[1] * 0.59 + source[2] * 0.11).toFixed(0),\n          currentAlpha = source[3];\n\n      threshold = threshold || 127;\n\n      average = (Number(average) < Number(threshold)) ? 0 : 255;\n      this.setSource([average, average, average, currentAlpha]);\n      return this;\n    },\n\n    /**\n     * Overlays color with another color\n     * @param {String|fabric.Color} otherColor\n     * @return {fabric.Color} thisArg\n     */\n    overlayWith: function(otherColor) {\n      if (!(otherColor instanceof Color)) {\n        otherColor = new Color(otherColor);\n      }\n\n      var result = [],\n          alpha = this.getAlpha(),\n          otherAlpha = 0.5,\n          source = this.getSource(),\n          otherSource = otherColor.getSource(), i;\n\n      for (i = 0; i < 3; i++) {\n        result.push(Math.round((source[i] * (1 - otherAlpha)) + (otherSource[i] * otherAlpha)));\n      }\n\n      result[3] = alpha;\n      this.setSource(result);\n      return this;\n    }\n  };\n\n  /**\n   * Regex matching color in RGB or RGBA formats (ex: rgb(0, 0, 0), rgba(255, 100, 10, 0.5), rgba( 255 , 100 , 10 , 0.5 ), rgb(1,1,1), rgba(100%, 60%, 10%, 0.5))\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   */\n  // eslint-disable-next-line max-len\n  fabric.Color.reRGBa = /^rgba?\\(\\s*(\\d{1,3}(?:\\.\\d+)?\\%?)\\s*,\\s*(\\d{1,3}(?:\\.\\d+)?\\%?)\\s*,\\s*(\\d{1,3}(?:\\.\\d+)?\\%?)\\s*(?:\\s*,\\s*((?:\\d*\\.?\\d+)?)\\s*)?\\)$/i;\n\n  /**\n   * Regex matching color in HSL or HSLA formats (ex: hsl(200, 80%, 10%), hsla(300, 50%, 80%, 0.5), hsla( 300 , 50% , 80% , 0.5 ))\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   */\n  fabric.Color.reHSLa = /^hsla?\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3}\\%)\\s*,\\s*(\\d{1,3}\\%)\\s*(?:\\s*,\\s*(\\d+(?:\\.\\d+)?)\\s*)?\\)$/i;\n\n  /**\n   * Regex matching color in HEX format (ex: #FF5544CC, #FF5555, 010155, aff)\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   */\n  fabric.Color.reHex = /^#?([0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{4}|[0-9a-f]{3})$/i;\n\n  /**\n   * Map of the 148 color names with HEX code\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   * @see: https://www.w3.org/TR/css3-color/#svg-color\n   */\n  fabric.Color.colorNameMap = {\n    aliceblue:            '#F0F8FF',\n    antiquewhite:         '#FAEBD7',\n    aqua:                 '#00FFFF',\n    aquamarine:           '#7FFFD4',\n    azure:                '#F0FFFF',\n    beige:                '#F5F5DC',\n    bisque:               '#FFE4C4',\n    black:                '#000000',\n    blanchedalmond:       '#FFEBCD',\n    blue:                 '#0000FF',\n    blueviolet:           '#8A2BE2',\n    brown:                '#A52A2A',\n    burlywood:            '#DEB887',\n    cadetblue:            '#5F9EA0',\n    chartreuse:           '#7FFF00',\n    chocolate:            '#D2691E',\n    coral:                '#FF7F50',\n    cornflowerblue:       '#6495ED',\n    cornsilk:             '#FFF8DC',\n    crimson:              '#DC143C',\n    cyan:                 '#00FFFF',\n    darkblue:             '#00008B',\n    darkcyan:             '#008B8B',\n    darkgoldenrod:        '#B8860B',\n    darkgray:             '#A9A9A9',\n    darkgrey:             '#A9A9A9',\n    darkgreen:            '#006400',\n    darkkhaki:            '#BDB76B',\n    darkmagenta:          '#8B008B',\n    darkolivegreen:       '#556B2F',\n    darkorange:           '#FF8C00',\n    darkorchid:           '#9932CC',\n    darkred:              '#8B0000',\n    darksalmon:           '#E9967A',\n    darkseagreen:         '#8FBC8F',\n    darkslateblue:        '#483D8B',\n    darkslategray:        '#2F4F4F',\n    darkslategrey:        '#2F4F4F',\n    darkturquoise:        '#00CED1',\n    darkviolet:           '#9400D3',\n    deeppink:             '#FF1493',\n    deepskyblue:          '#00BFFF',\n    dimgray:              '#696969',\n    dimgrey:              '#696969',\n    dodgerblue:           '#1E90FF',\n    firebrick:            '#B22222',\n    floralwhite:          '#FFFAF0',\n    forestgreen:          '#228B22',\n    fuchsia:              '#FF00FF',\n    gainsboro:            '#DCDCDC',\n    ghostwhite:           '#F8F8FF',\n    gold:                 '#FFD700',\n    goldenrod:            '#DAA520',\n    gray:                 '#808080',\n    grey:                 '#808080',\n    green:                '#008000',\n    greenyellow:          '#ADFF2F',\n    honeydew:             '#F0FFF0',\n    hotpink:              '#FF69B4',\n    indianred:            '#CD5C5C',\n    indigo:               '#4B0082',\n    ivory:                '#FFFFF0',\n    khaki:                '#F0E68C',\n    lavender:             '#E6E6FA',\n    lavenderblush:        '#FFF0F5',\n    lawngreen:            '#7CFC00',\n    lemonchiffon:         '#FFFACD',\n    lightblue:            '#ADD8E6',\n    lightcoral:           '#F08080',\n    lightcyan:            '#E0FFFF',\n    lightgoldenrodyellow: '#FAFAD2',\n    lightgray:            '#D3D3D3',\n    lightgrey:            '#D3D3D3',\n    lightgreen:           '#90EE90',\n    lightpink:            '#FFB6C1',\n    lightsalmon:          '#FFA07A',\n    lightseagreen:        '#20B2AA',\n    lightskyblue:         '#87CEFA',\n    lightslategray:       '#778899',\n    lightslategrey:       '#778899',\n    lightsteelblue:       '#B0C4DE',\n    lightyellow:          '#FFFFE0',\n    lime:                 '#00FF00',\n    limegreen:            '#32CD32',\n    linen:                '#FAF0E6',\n    magenta:              '#FF00FF',\n    maroon:               '#800000',\n    mediumaquamarine:     '#66CDAA',\n    mediumblue:           '#0000CD',\n    mediumorchid:         '#BA55D3',\n    mediumpurple:         '#9370DB',\n    mediumseagreen:       '#3CB371',\n    mediumslateblue:      '#7B68EE',\n    mediumspringgreen:    '#00FA9A',\n    mediumturquoise:      '#48D1CC',\n    mediumvioletred:      '#C71585',\n    midnightblue:         '#191970',\n    mintcream:            '#F5FFFA',\n    mistyrose:            '#FFE4E1',\n    moccasin:             '#FFE4B5',\n    navajowhite:          '#FFDEAD',\n    navy:                 '#000080',\n    oldlace:              '#FDF5E6',\n    olive:                '#808000',\n    olivedrab:            '#6B8E23',\n    orange:               '#FFA500',\n    orangered:            '#FF4500',\n    orchid:               '#DA70D6',\n    palegoldenrod:        '#EEE8AA',\n    palegreen:            '#98FB98',\n    paleturquoise:        '#AFEEEE',\n    palevioletred:        '#DB7093',\n    papayawhip:           '#FFEFD5',\n    peachpuff:            '#FFDAB9',\n    peru:                 '#CD853F',\n    pink:                 '#FFC0CB',\n    plum:                 '#DDA0DD',\n    powderblue:           '#B0E0E6',\n    purple:               '#800080',\n    rebeccapurple:        '#663399',\n    red:                  '#FF0000',\n    rosybrown:            '#BC8F8F',\n    royalblue:            '#4169E1',\n    saddlebrown:          '#8B4513',\n    salmon:               '#FA8072',\n    sandybrown:           '#F4A460',\n    seagreen:             '#2E8B57',\n    seashell:             '#FFF5EE',\n    sienna:               '#A0522D',\n    silver:               '#C0C0C0',\n    skyblue:              '#87CEEB',\n    slateblue:            '#6A5ACD',\n    slategray:            '#708090',\n    slategrey:            '#708090',\n    snow:                 '#FFFAFA',\n    springgreen:          '#00FF7F',\n    steelblue:            '#4682B4',\n    tan:                  '#D2B48C',\n    teal:                 '#008080',\n    thistle:              '#D8BFD8',\n    tomato:               '#FF6347',\n    turquoise:            '#40E0D0',\n    violet:               '#EE82EE',\n    wheat:                '#F5DEB3',\n    white:                '#FFFFFF',\n    whitesmoke:           '#F5F5F5',\n    yellow:               '#FFFF00',\n    yellowgreen:          '#9ACD32'\n  };\n\n  /**\n   * @private\n   * @param {Number} p\n   * @param {Number} q\n   * @param {Number} t\n   * @return {Number}\n   */\n  function hue2rgb(p, q, t) {\n    if (t < 0) {\n      t += 1;\n    }\n    if (t > 1) {\n      t -= 1;\n    }\n    if (t < 1 / 6) {\n      return p + (q - p) * 6 * t;\n    }\n    if (t < 1 / 2) {\n      return q;\n    }\n    if (t < 2 / 3) {\n      return p + (q - p) * (2 / 3 - t) * 6;\n    }\n    return p;\n  }\n\n  /**\n   * Returns new color object, when given a color in RGB format\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: rgb(0-255,0-255,0-255)\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromRgb = function(color) {\n    return Color.fromSource(Color.sourceFromRgb(color));\n  };\n\n  /**\n   * Returns array representation (ex: [100, 100, 200, 1]) of a color that's in RGB or RGBA format\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: rgb(0-255,0-255,0-255), rgb(0%-100%,0%-100%,0%-100%)\n   * @return {Array} source\n   */\n  fabric.Color.sourceFromRgb = function(color) {\n    var match = color.match(Color.reRGBa);\n    if (match) {\n      var r = parseInt(match[1], 10) / (/%$/.test(match[1]) ? 100 : 1) * (/%$/.test(match[1]) ? 255 : 1),\n          g = parseInt(match[2], 10) / (/%$/.test(match[2]) ? 100 : 1) * (/%$/.test(match[2]) ? 255 : 1),\n          b = parseInt(match[3], 10) / (/%$/.test(match[3]) ? 100 : 1) * (/%$/.test(match[3]) ? 255 : 1);\n\n      return [\n        parseInt(r, 10),\n        parseInt(g, 10),\n        parseInt(b, 10),\n        match[4] ? parseFloat(match[4]) : 1\n      ];\n    }\n  };\n\n  /**\n   * Returns new color object, when given a color in RGBA format\n   * @static\n   * @function\n   * @memberOf fabric.Color\n   * @param {String} color\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromRgba = Color.fromRgb;\n\n  /**\n   * Returns new color object, when given a color in HSL format\n   * @param {String} color Color value ex: hsl(0-260,0%-100%,0%-100%)\n   * @memberOf fabric.Color\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromHsl = function(color) {\n    return Color.fromSource(Color.sourceFromHsl(color));\n  };\n\n  /**\n   * Returns array representation (ex: [100, 100, 200, 1]) of a color that's in HSL or HSLA format.\n   * Adapted from <a href=\"https://rawgithub.com/mjijackson/mjijackson.github.com/master/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript.html\">https://github.com/mjijackson</a>\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: hsl(0-360,0%-100%,0%-100%) or hsla(0-360,0%-100%,0%-100%, 0-1)\n   * @return {Array} source\n   * @see http://http://www.w3.org/TR/css3-color/#hsl-color\n   */\n  fabric.Color.sourceFromHsl = function(color) {\n    var match = color.match(Color.reHSLa);\n    if (!match) {\n      return;\n    }\n\n    var h = (((parseFloat(match[1]) % 360) + 360) % 360) / 360,\n        s = parseFloat(match[2]) / (/%$/.test(match[2]) ? 100 : 1),\n        l = parseFloat(match[3]) / (/%$/.test(match[3]) ? 100 : 1),\n        r, g, b;\n\n    if (s === 0) {\n      r = g = b = l;\n    }\n    else {\n      var q = l <= 0.5 ? l * (s + 1) : l + s - l * s,\n          p = l * 2 - q;\n\n      r = hue2rgb(p, q, h + 1 / 3);\n      g = hue2rgb(p, q, h);\n      b = hue2rgb(p, q, h - 1 / 3);\n    }\n\n    return [\n      Math.round(r * 255),\n      Math.round(g * 255),\n      Math.round(b * 255),\n      match[4] ? parseFloat(match[4]) : 1\n    ];\n  };\n\n  /**\n   * Returns new color object, when given a color in HSLA format\n   * @static\n   * @function\n   * @memberOf fabric.Color\n   * @param {String} color\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromHsla = Color.fromHsl;\n\n  /**\n   * Returns new color object, when given a color in HEX format\n   * @static\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: FF5555\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromHex = function(color) {\n    return Color.fromSource(Color.sourceFromHex(color));\n  };\n\n  /**\n   * Returns array representation (ex: [100, 100, 200, 1]) of a color that's in HEX format\n   * @static\n   * @memberOf fabric.Color\n   * @param {String} color ex: FF5555 or FF5544CC (RGBa)\n   * @return {Array} source\n   */\n  fabric.Color.sourceFromHex = function(color) {\n    if (color.match(Color.reHex)) {\n      var value = color.slice(color.indexOf('#') + 1),\n          isShortNotation = (value.length === 3 || value.length === 4),\n          isRGBa = (value.length === 8 || value.length === 4),\n          r = isShortNotation ? (value.charAt(0) + value.charAt(0)) : value.substring(0, 2),\n          g = isShortNotation ? (value.charAt(1) + value.charAt(1)) : value.substring(2, 4),\n          b = isShortNotation ? (value.charAt(2) + value.charAt(2)) : value.substring(4, 6),\n          a = isRGBa ? (isShortNotation ? (value.charAt(3) + value.charAt(3)) : value.substring(6, 8)) : 'FF';\n\n      return [\n        parseInt(r, 16),\n        parseInt(g, 16),\n        parseInt(b, 16),\n        parseFloat((parseInt(a, 16) / 255).toFixed(2))\n      ];\n    }\n  };\n\n  /**\n   * Returns new color object, when given color in array representation (ex: [200, 100, 100, 0.5])\n   * @static\n   * @memberOf fabric.Color\n   * @param {Array} source\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromSource = function(source) {\n    var oColor = new Color();\n    oColor.setSource(source);\n    return oColor;\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n\n  /* _FROM_SVG_START_ */\n  function getColorStop(el, multiplier) {\n    var style = el.getAttribute('style'),\n        offset = el.getAttribute('offset') || 0,\n        color, colorAlpha, opacity, i;\n\n    // convert percents to absolute values\n    offset = parseFloat(offset) / (/%$/.test(offset) ? 100 : 1);\n    offset = offset < 0 ? 0 : offset > 1 ? 1 : offset;\n    if (style) {\n      var keyValuePairs = style.split(/\\s*;\\s*/);\n\n      if (keyValuePairs[keyValuePairs.length - 1] === '') {\n        keyValuePairs.pop();\n      }\n\n      for (i = keyValuePairs.length; i--; ) {\n\n        var split = keyValuePairs[i].split(/\\s*:\\s*/),\n            key = split[0].trim(),\n            value = split[1].trim();\n\n        if (key === 'stop-color') {\n          color = value;\n        }\n        else if (key === 'stop-opacity') {\n          opacity = value;\n        }\n      }\n    }\n\n    if (!color) {\n      color = el.getAttribute('stop-color') || 'rgb(0,0,0)';\n    }\n    if (!opacity) {\n      opacity = el.getAttribute('stop-opacity');\n    }\n\n    color = new fabric.Color(color);\n    colorAlpha = color.getAlpha();\n    opacity = isNaN(parseFloat(opacity)) ? 1 : parseFloat(opacity);\n    opacity *= colorAlpha * multiplier;\n\n    return {\n      offset: offset,\n      color: color.toRgb(),\n      opacity: opacity\n    };\n  }\n\n  function getLinearCoords(el) {\n    return {\n      x1: el.getAttribute('x1') || 0,\n      y1: el.getAttribute('y1') || 0,\n      x2: el.getAttribute('x2') || '100%',\n      y2: el.getAttribute('y2') || 0\n    };\n  }\n\n  function getRadialCoords(el) {\n    return {\n      x1: el.getAttribute('fx') || el.getAttribute('cx') || '50%',\n      y1: el.getAttribute('fy') || el.getAttribute('cy') || '50%',\n      r1: 0,\n      x2: el.getAttribute('cx') || '50%',\n      y2: el.getAttribute('cy') || '50%',\n      r2: el.getAttribute('r') || '50%'\n    };\n  }\n  /* _FROM_SVG_END_ */\n\n  var clone = fabric.util.object.clone;\n\n  /**\n   * Gradient class\n   * @class fabric.Gradient\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#gradients}\n   * @see {@link fabric.Gradient#initialize} for constructor definition\n   */\n  fabric.Gradient = fabric.util.createClass(/** @lends fabric.Gradient.prototype */ {\n\n    /**\n     * Horizontal offset for aligning gradients coming from SVG when outside pathgroups\n     * @type Number\n     * @default 0\n     */\n    offsetX: 0,\n\n    /**\n     * Vertical offset for aligning gradients coming from SVG when outside pathgroups\n     * @type Number\n     * @default 0\n     */\n    offsetY: 0,\n\n    /**\n     * A transform matrix to apply to the gradient before painting.\n     * Imported from svg gradients, is not applied with the current transform in the center.\n     * Before this transform is applied, the origin point is at the top left corner of the object\n     * plus the addition of offsetY and offsetX.\n     * @type Number[]\n     * @default null\n     */\n    gradientTransform: null,\n\n    /**\n     * coordinates units for coords.\n     * If `pixels`, the number of coords are in the same unit of width / height.\n     * If set as `percentage` the coords are still a number, but 1 means 100% of width\n     * for the X and 100% of the height for the y. It can be bigger than 1 and negative.\n     * allowed values pixels or percentage.\n     * @type String\n     * @default 'pixels'\n     */\n    gradientUnits: 'pixels',\n\n    /**\n     * Gradient type linear or radial\n     * @type String\n     * @default 'pixels'\n     */\n    type: 'linear',\n\n    /**\n     * Constructor\n     * @param {Object} options Options object with type, coords, gradientUnits and colorStops\n     * @param {Object} [options.type] gradient type linear or radial\n     * @param {Object} [options.gradientUnits] gradient units\n     * @param {Object} [options.offsetX] SVG import compatibility\n     * @param {Object} [options.offsetY] SVG import compatibility\n     * @param {Object[]} options.colorStops contains the colorstops.\n     * @param {Object} options.coords contains the coords of the gradient\n     * @param {Number} [options.coords.x1] X coordiante of the first point for linear or of the focal point for radial\n     * @param {Number} [options.coords.y1] Y coordiante of the first point for linear or of the focal point for radial\n     * @param {Number} [options.coords.x2] X coordiante of the second point for linear or of the center point for radial\n     * @param {Number} [options.coords.y2] Y coordiante of the second point for linear or of the center point for radial\n     * @param {Number} [options.coords.r1] only for radial gradient, radius of the inner circle\n     * @param {Number} [options.coords.r2] only for radial gradient, radius of the external circle\n     * @return {fabric.Gradient} thisArg\n     */\n    initialize: function(options) {\n      options || (options = { });\n      options.coords || (options.coords = { });\n\n      var coords, _this = this;\n\n      // sets everything, then coords and colorstops get sets again\n      Object.keys(options).forEach(function(option) {\n        _this[option] = options[option];\n      });\n\n      if (this.id) {\n        this.id += '_' + fabric.Object.__uid++;\n      }\n      else {\n        this.id = fabric.Object.__uid++;\n      }\n\n      coords = {\n        x1: options.coords.x1 || 0,\n        y1: options.coords.y1 || 0,\n        x2: options.coords.x2 || 0,\n        y2: options.coords.y2 || 0\n      };\n\n      if (this.type === 'radial') {\n        coords.r1 = options.coords.r1 || 0;\n        coords.r2 = options.coords.r2 || 0;\n      }\n\n      this.coords = coords;\n      this.colorStops = options.colorStops.slice();\n    },\n\n    /**\n     * Adds another colorStop\n     * @param {Object} colorStop Object with offset and color\n     * @return {fabric.Gradient} thisArg\n     */\n    addColorStop: function(colorStops) {\n      for (var position in colorStops) {\n        var color = new fabric.Color(colorStops[position]);\n        this.colorStops.push({\n          offset: parseFloat(position),\n          color: color.toRgb(),\n          opacity: color.getAlpha()\n        });\n      }\n      return this;\n    },\n\n    /**\n     * Returns object representation of a gradient\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object}\n     */\n    toObject: function(propertiesToInclude) {\n      var object = {\n        type: this.type,\n        coords: this.coords,\n        colorStops: this.colorStops,\n        offsetX: this.offsetX,\n        offsetY: this.offsetY,\n        gradientUnits: this.gradientUnits,\n        gradientTransform: this.gradientTransform ? this.gradientTransform.concat() : this.gradientTransform\n      };\n      fabric.util.populateWithProperties(this, object, propertiesToInclude);\n\n      return object;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns SVG representation of an gradient\n     * @param {Object} object Object to create a gradient for\n     * @return {String} SVG representation of an gradient (linear/radial)\n     */\n    toSVG: function(object, options) {\n      var coords = clone(this.coords, true), i, len, options = options || {},\n          markup, commonAttributes, colorStops = clone(this.colorStops, true),\n          needsSwap = coords.r1 > coords.r2,\n          transform = this.gradientTransform ? this.gradientTransform.concat() : fabric.iMatrix.concat(),\n          offsetX = -this.offsetX, offsetY = -this.offsetY,\n          withViewport = !!options.additionalTransform,\n          gradientUnits = this.gradientUnits === 'pixels' ? 'userSpaceOnUse' : 'objectBoundingBox';\n      // colorStops must be sorted ascending\n      colorStops.sort(function(a, b) {\n        return a.offset - b.offset;\n      });\n\n      if (gradientUnits === 'objectBoundingBox') {\n        offsetX /= object.width;\n        offsetY /= object.height;\n      }\n      else {\n        offsetX += object.width / 2;\n        offsetY += object.height / 2;\n      }\n      if (object.type === 'path') {\n        offsetX -= object.pathOffset.x;\n        offsetY -= object.pathOffset.y;\n      }\n\n\n      transform[4] -= offsetX;\n      transform[5] -= offsetY;\n\n      commonAttributes = 'id=\"SVGID_' + this.id +\n                     '\" gradientUnits=\"' + gradientUnits + '\"';\n      commonAttributes += ' gradientTransform=\"' + (withViewport ?\n        options.additionalTransform + ' ' : '') + fabric.util.matrixToSVG(transform) + '\" ';\n\n      if (this.type === 'linear') {\n        markup = [\n          '<linearGradient ',\n          commonAttributes,\n          ' x1=\"', coords.x1,\n          '\" y1=\"', coords.y1,\n          '\" x2=\"', coords.x2,\n          '\" y2=\"', coords.y2,\n          '\">\\n'\n        ];\n      }\n      else if (this.type === 'radial') {\n        // svg radial gradient has just 1 radius. the biggest.\n        markup = [\n          '<radialGradient ',\n          commonAttributes,\n          ' cx=\"', needsSwap ? coords.x1 : coords.x2,\n          '\" cy=\"', needsSwap ? coords.y1 : coords.y2,\n          '\" r=\"', needsSwap ? coords.r1 : coords.r2,\n          '\" fx=\"', needsSwap ? coords.x2 : coords.x1,\n          '\" fy=\"', needsSwap ? coords.y2 : coords.y1,\n          '\">\\n'\n        ];\n      }\n\n      if (this.type === 'radial') {\n        if (needsSwap) {\n          // svg goes from internal to external radius. if radius are inverted, swap color stops.\n          colorStops = colorStops.concat();\n          colorStops.reverse();\n          for (i = 0, len = colorStops.length; i < len; i++) {\n            colorStops[i].offset = 1 - colorStops[i].offset;\n          }\n        }\n        var minRadius = Math.min(coords.r1, coords.r2);\n        if (minRadius > 0) {\n          // i have to shift all colorStops and add new one in 0.\n          var maxRadius = Math.max(coords.r1, coords.r2),\n              percentageShift = minRadius / maxRadius;\n          for (i = 0, len = colorStops.length; i < len; i++) {\n            colorStops[i].offset += percentageShift * (1 - colorStops[i].offset);\n          }\n        }\n      }\n\n      for (i = 0, len = colorStops.length; i < len; i++) {\n        var colorStop = colorStops[i];\n        markup.push(\n          '<stop ',\n          'offset=\"', (colorStop.offset * 100) + '%',\n          '\" style=\"stop-color:', colorStop.color,\n          (typeof colorStop.opacity !== 'undefined' ? ';stop-opacity: ' + colorStop.opacity : ';'),\n          '\"/>\\n'\n        );\n      }\n\n      markup.push((this.type === 'linear' ? '</linearGradient>\\n' : '</radialGradient>\\n'));\n\n      return markup.join('');\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns an instance of CanvasGradient\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {fabric.Object} object the fabric.Object for which the gradient is\n     * @return {CanvasGradient}\n     */\n    toLive: function(ctx, object) {\n      var gradient, coords = fabric.util.object.clone(this.coords), i, len,\n          x1 = coords.x1, y1 = coords.y1, x2 = coords.x2, y2 = coords.y2,\n          stops = this.colorStops;\n\n      if (!this.type) {\n        return;\n      }\n\n      if (object instanceof fabric.Text && this.gradientUnits === 'percentage') {\n        x1 *= object.width;\n        y1 *= object.height;\n        x2 *= object.width;\n        y2 *= object.height;\n      }\n      if (this.type === 'linear') {\n        gradient = ctx.createLinearGradient(x1, y1, x2, y2);\n      }\n      else if (this.type === 'radial') {\n        gradient = ctx.createRadialGradient(x1, y1, coords.r1, x2, y2, coords.r2);\n      }\n      for (i = 0, len = stops.length; i < len; i++) {\n        var color = stops[i].color,\n            opacity = stops[i].opacity,\n            offset = stops[i].offset;\n\n        if (typeof opacity !== 'undefined') {\n          color = new fabric.Color(color).setAlpha(opacity).toRgba();\n        }\n        gradient.addColorStop(offset, color);\n      }\n\n      return gradient;\n    }\n  });\n\n  fabric.util.object.extend(fabric.Gradient, {\n\n    /* _FROM_SVG_START_ */\n    /**\n     * Returns {@link fabric.Gradient} instance from an SVG element\n     * @static\n     * @memberOf fabric.Gradient\n     * @param {SVGGradientElement} el SVG gradient element\n     * @param {fabric.Object} instance\n     * @param {String} opacityAttr A fill-opacity or stroke-opacity attribute to multiply to each stop's opacity.\n     * @param {Object} svgOptions an object containing the size of the SVG in order to parse correctly graidents\n     * that uses gradientUnits as 'userSpaceOnUse' and percentages.\n     * @param {Object.number} viewBoxWidth width part of the viewBox attribute on svg\n     * @param {Object.number} viewBoxHeight height part of the viewBox attribute on svg\n     * @param {Object.number} width width part of the svg tag if viewBox is not specified\n     * @param {Object.number} height height part of the svg tag if viewBox is not specified\n     * @return {fabric.Gradient} Gradient instance\n     * @see http://www.w3.org/TR/SVG/pservers.html#LinearGradientElement\n     * @see http://www.w3.org/TR/SVG/pservers.html#RadialGradientElement\n     */\n    fromElement: function(el, instance, opacityAttr, svgOptions) {\n      /**\n       *  @example:\n       *\n       *  <linearGradient id=\"linearGrad1\">\n       *    <stop offset=\"0%\" stop-color=\"white\"/>\n       *    <stop offset=\"100%\" stop-color=\"black\"/>\n       *  </linearGradient>\n       *\n       *  OR\n       *\n       *  <linearGradient id=\"linearGrad2\">\n       *    <stop offset=\"0\" style=\"stop-color:rgb(255,255,255)\"/>\n       *    <stop offset=\"1\" style=\"stop-color:rgb(0,0,0)\"/>\n       *  </linearGradient>\n       *\n       *  OR\n       *\n       *  <radialGradient id=\"radialGrad1\">\n       *    <stop offset=\"0%\" stop-color=\"white\" stop-opacity=\"1\" />\n       *    <stop offset=\"50%\" stop-color=\"black\" stop-opacity=\"0.5\" />\n       *    <stop offset=\"100%\" stop-color=\"white\" stop-opacity=\"1\" />\n       *  </radialGradient>\n       *\n       *  OR\n       *\n       *  <radialGradient id=\"radialGrad2\">\n       *    <stop offset=\"0\" stop-color=\"rgb(255,255,255)\" />\n       *    <stop offset=\"0.5\" stop-color=\"rgb(0,0,0)\" />\n       *    <stop offset=\"1\" stop-color=\"rgb(255,255,255)\" />\n       *  </radialGradient>\n       *\n       */\n\n      var multiplier = parseFloat(opacityAttr) / (/%$/.test(opacityAttr) ? 100 : 1);\n      multiplier = multiplier < 0 ? 0 : multiplier > 1 ? 1 : multiplier;\n      if (isNaN(multiplier)) {\n        multiplier = 1;\n      }\n\n      var colorStopEls = el.getElementsByTagName('stop'),\n          type,\n          gradientUnits = el.getAttribute('gradientUnits') === 'userSpaceOnUse' ?\n            'pixels' : 'percentage',\n          gradientTransform = el.getAttribute('gradientTransform') || '',\n          colorStops = [],\n          coords, i, offsetX = 0, offsetY = 0,\n          transformMatrix;\n      if (el.nodeName === 'linearGradient' || el.nodeName === 'LINEARGRADIENT') {\n        type = 'linear';\n        coords = getLinearCoords(el);\n      }\n      else {\n        type = 'radial';\n        coords = getRadialCoords(el);\n      }\n\n      for (i = colorStopEls.length; i--; ) {\n        colorStops.push(getColorStop(colorStopEls[i], multiplier));\n      }\n\n      transformMatrix = fabric.parseTransformAttribute(gradientTransform);\n\n      __convertPercentUnitsToValues(instance, coords, svgOptions, gradientUnits);\n\n      if (gradientUnits === 'pixels') {\n        offsetX = -instance.left;\n        offsetY = -instance.top;\n      }\n\n      var gradient = new fabric.Gradient({\n        id: el.getAttribute('id'),\n        type: type,\n        coords: coords,\n        colorStops: colorStops,\n        gradientUnits: gradientUnits,\n        gradientTransform: transformMatrix,\n        offsetX: offsetX,\n        offsetY: offsetY,\n      });\n\n      return gradient;\n    },\n    /* _FROM_SVG_END_ */\n\n    /**\n     * Returns {@link fabric.Gradient} instance from its object representation\n     * this function is uniquely used by Object.setGradient and is deprecated with it.\n     * @static\n     * @deprecated since 3.4.0\n     * @memberOf fabric.Gradient\n     * @param {Object} obj\n     * @param {Object} [options] Options object\n     */\n    forObject: function(obj, options) {\n      options || (options = { });\n      __convertPercentUnitsToValues(obj, options.coords, options.gradientUnits, {\n        // those values are to avoid errors. this function is uniquely used by\n        viewBoxWidth: 100,\n        viewBoxHeight: 100,\n      });\n      return new fabric.Gradient(options);\n    }\n  });\n\n  /**\n   * @private\n   */\n  function __convertPercentUnitsToValues(instance, options, svgOptions, gradientUnits) {\n    var propValue, finalValue;\n    Object.keys(options).forEach(function(prop) {\n      propValue = options[prop];\n      if (propValue === 'Infinity') {\n        finalValue = 1;\n      }\n      else if (propValue === '-Infinity') {\n        finalValue = 0;\n      }\n      else {\n        finalValue = parseFloat(options[prop], 10);\n        if (typeof propValue === 'string' && /^(\\d+\\.\\d+)%|(\\d+)%$/.test(propValue)) {\n          finalValue *= 0.01;\n          if (gradientUnits === 'pixels') {\n            // then we need to fix those percentages here in svg parsing\n            if (prop === 'x1' || prop === 'x2' || prop === 'r2') {\n              finalValue *= svgOptions.viewBoxWidth || svgOptions.width;\n            }\n            if (prop === 'y1' || prop === 'y2') {\n              finalValue *= svgOptions.viewBoxHeight || svgOptions.height;\n            }\n          }\n        }\n      }\n      options[prop] = finalValue;\n    });\n  }\n})();\n\n\n(function() {\n\n  'use strict';\n\n  var toFixed = fabric.util.toFixed;\n\n  /**\n   * Pattern class\n   * @class fabric.Pattern\n   * @see {@link http://fabricjs.com/patterns|Pattern demo}\n   * @see {@link http://fabricjs.com/dynamic-patterns|DynamicPattern demo}\n   * @see {@link fabric.Pattern#initialize} for constructor definition\n   */\n\n\n  fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */ {\n\n    /**\n     * Repeat property of a pattern (one of repeat, repeat-x, repeat-y or no-repeat)\n     * @type String\n     * @default\n     */\n    repeat: 'repeat',\n\n    /**\n     * Pattern horizontal offset from object's left/top corner\n     * @type Number\n     * @default\n     */\n    offsetX: 0,\n\n    /**\n     * Pattern vertical offset from object's left/top corner\n     * @type Number\n     * @default\n     */\n    offsetY: 0,\n\n    /**\n     * crossOrigin value (one of \"\", \"anonymous\", \"use-credentials\")\n     * @see https://developer.mozilla.org/en-US/docs/HTML/CORS_settings_attributes\n     * @type String\n     * @default\n     */\n    crossOrigin: '',\n\n    /**\n     * transform matrix to change the pattern, imported from svgs.\n     * @type Array\n     * @default\n     */\n    patternTransform: null,\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     * @param {Function} [callback] function to invoke after callback init.\n     * @return {fabric.Pattern} thisArg\n     */\n    initialize: function(options, callback) {\n      options || (options = { });\n\n      this.id = fabric.Object.__uid++;\n      this.setOptions(options);\n      if (!options.source || (options.source && typeof options.source !== 'string')) {\n        callback && callback(this);\n        return;\n      }\n      // function string\n      if (typeof fabric.util.getFunctionBody(options.source) !== 'undefined') {\n        this.source = new Function(fabric.util.getFunctionBody(options.source));\n        callback && callback(this);\n      }\n      else {\n        // img src string\n        var _this = this;\n        this.source = fabric.util.createImage();\n        fabric.util.loadImage(options.source, function(img) {\n          _this.source = img;\n          callback && callback(_this);\n        }, null, this.crossOrigin);\n      }\n    },\n\n    /**\n     * Returns object representation of a pattern\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of a pattern instance\n     */\n    toObject: function(propertiesToInclude) {\n      var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,\n          source, object;\n\n      // callback\n      if (typeof this.source === 'function') {\n        source = String(this.source);\n      }\n      // <img> element\n      else if (typeof this.source.src === 'string') {\n        source = this.source.src;\n      }\n      // <canvas> element\n      else if (typeof this.source === 'object' && this.source.toDataURL) {\n        source = this.source.toDataURL();\n      }\n\n      object = {\n        type: 'pattern',\n        source: source,\n        repeat: this.repeat,\n        crossOrigin: this.crossOrigin,\n        offsetX: toFixed(this.offsetX, NUM_FRACTION_DIGITS),\n        offsetY: toFixed(this.offsetY, NUM_FRACTION_DIGITS),\n        patternTransform: this.patternTransform ? this.patternTransform.concat() : null\n      };\n      fabric.util.populateWithProperties(this, object, propertiesToInclude);\n\n      return object;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns SVG representation of a pattern\n     * @param {fabric.Object} object\n     * @return {String} SVG representation of a pattern\n     */\n    toSVG: function(object) {\n      var patternSource = typeof this.source === 'function' ? this.source() : this.source,\n          patternWidth = patternSource.width / object.width,\n          patternHeight = patternSource.height / object.height,\n          patternOffsetX = this.offsetX / object.width,\n          patternOffsetY = this.offsetY / object.height,\n          patternImgSrc = '';\n      if (this.repeat === 'repeat-x' || this.repeat === 'no-repeat') {\n        patternHeight = 1;\n        if (patternOffsetY) {\n          patternHeight += Math.abs(patternOffsetY);\n        }\n      }\n      if (this.repeat === 'repeat-y' || this.repeat === 'no-repeat') {\n        patternWidth = 1;\n        if (patternOffsetX) {\n          patternWidth += Math.abs(patternOffsetX);\n        }\n\n      }\n      if (patternSource.src) {\n        patternImgSrc = patternSource.src;\n      }\n      else if (patternSource.toDataURL) {\n        patternImgSrc = patternSource.toDataURL();\n      }\n\n      return '<pattern id=\"SVGID_' + this.id +\n                    '\" x=\"' + patternOffsetX +\n                    '\" y=\"' + patternOffsetY +\n                    '\" width=\"' + patternWidth +\n                    '\" height=\"' + patternHeight + '\">\\n' +\n               '<image x=\"0\" y=\"0\"' +\n                      ' width=\"' + patternSource.width +\n                      '\" height=\"' + patternSource.height +\n                      '\" xlink:href=\"' + patternImgSrc +\n               '\"></image>\\n' +\n             '</pattern>\\n';\n    },\n    /* _TO_SVG_END_ */\n\n    setOptions: function(options) {\n      for (var prop in options) {\n        this[prop] = options[prop];\n      }\n    },\n\n    /**\n     * Returns an instance of CanvasPattern\n     * @param {CanvasRenderingContext2D} ctx Context to create pattern\n     * @return {CanvasPattern}\n     */\n    toLive: function(ctx) {\n      var source = typeof this.source === 'function' ? this.source() : this.source;\n\n      // if the image failed to load, return, and allow rest to continue loading\n      if (!source) {\n        return '';\n      }\n\n      // if an image\n      if (typeof source.src !== 'undefined') {\n        if (!source.complete) {\n          return '';\n        }\n        if (source.naturalWidth === 0 || source.naturalHeight === 0) {\n          return '';\n        }\n      }\n      return ctx.createPattern(source, this.repeat);\n    }\n  });\n})();\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      toFixed = fabric.util.toFixed;\n\n  if (fabric.Shadow) {\n    fabric.warn('fabric.Shadow is already defined.');\n    return;\n  }\n\n  /**\n   * Shadow class\n   * @class fabric.Shadow\n   * @see {@link http://fabricjs.com/shadows|Shadow demo}\n   * @see {@link fabric.Shadow#initialize} for constructor definition\n   */\n  fabric.Shadow = fabric.util.createClass(/** @lends fabric.Shadow.prototype */ {\n\n    /**\n     * Shadow color\n     * @type String\n     * @default\n     */\n    color: 'rgb(0,0,0)',\n\n    /**\n     * Shadow blur\n     * @type Number\n     */\n    blur: 0,\n\n    /**\n     * Shadow horizontal offset\n     * @type Number\n     * @default\n     */\n    offsetX: 0,\n\n    /**\n     * Shadow vertical offset\n     * @type Number\n     * @default\n     */\n    offsetY: 0,\n\n    /**\n     * Whether the shadow should affect stroke operations\n     * @type Boolean\n     * @default\n     */\n    affectStroke: false,\n\n    /**\n     * Indicates whether toObject should include default values\n     * @type Boolean\n     * @default\n     */\n    includeDefaultValues: true,\n\n    /**\n     * When `false`, the shadow will scale with the object.\n     * When `true`, the shadow's offsetX, offsetY, and blur will not be affected by the object's scale.\n     * default to false\n     * @type Boolean\n     * @default\n     */\n    nonScaling: false,\n\n    /**\n     * Constructor\n     * @param {Object|String} [options] Options object with any of color, blur, offsetX, offsetY properties or string (e.g. \"rgba(0,0,0,0.2) 2px 2px 10px\")\n     * @return {fabric.Shadow} thisArg\n     */\n    initialize: function(options) {\n\n      if (typeof options === 'string') {\n        options = this._parseShadow(options);\n      }\n\n      for (var prop in options) {\n        this[prop] = options[prop];\n      }\n\n      this.id = fabric.Object.__uid++;\n    },\n\n    /**\n     * @private\n     * @param {String} shadow Shadow value to parse\n     * @return {Object} Shadow object with color, offsetX, offsetY and blur\n     */\n    _parseShadow: function(shadow) {\n      var shadowStr = shadow.trim(),\n          offsetsAndBlur = fabric.Shadow.reOffsetsAndBlur.exec(shadowStr) || [],\n          color = shadowStr.replace(fabric.Shadow.reOffsetsAndBlur, '') || 'rgb(0,0,0)';\n\n      return {\n        color: color.trim(),\n        offsetX: parseInt(offsetsAndBlur[1], 10) || 0,\n        offsetY: parseInt(offsetsAndBlur[2], 10) || 0,\n        blur: parseInt(offsetsAndBlur[3], 10) || 0\n      };\n    },\n\n    /**\n     * Returns a string representation of an instance\n     * @see http://www.w3.org/TR/css-text-decor-3/#text-shadow\n     * @return {String} Returns CSS3 text-shadow declaration\n     */\n    toString: function() {\n      return [this.offsetX, this.offsetY, this.blur, this.color].join('px ');\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns SVG representation of a shadow\n     * @param {fabric.Object} object\n     * @return {String} SVG representation of a shadow\n     */\n    toSVG: function(object) {\n      var fBoxX = 40, fBoxY = 40, NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,\n          offset = fabric.util.rotateVector(\n            { x: this.offsetX, y: this.offsetY },\n            fabric.util.degreesToRadians(-object.angle)),\n          BLUR_BOX = 20, color = new fabric.Color(this.color);\n\n      if (object.width && object.height) {\n        //http://www.w3.org/TR/SVG/filters.html#FilterEffectsRegion\n        // we add some extra space to filter box to contain the blur ( 20 )\n        fBoxX = toFixed((Math.abs(offset.x) + this.blur) / object.width, NUM_FRACTION_DIGITS) * 100 + BLUR_BOX;\n        fBoxY = toFixed((Math.abs(offset.y) + this.blur) / object.height, NUM_FRACTION_DIGITS) * 100 + BLUR_BOX;\n      }\n      if (object.flipX) {\n        offset.x *= -1;\n      }\n      if (object.flipY) {\n        offset.y *= -1;\n      }\n\n      return (\n        '<filter id=\"SVGID_' + this.id + '\" y=\"-' + fBoxY + '%\" height=\"' + (100 + 2 * fBoxY) + '%\" ' +\n          'x=\"-' + fBoxX + '%\" width=\"' + (100 + 2 * fBoxX) + '%\" ' + '>\\n' +\n          '\\t<feGaussianBlur in=\"SourceAlpha\" stdDeviation=\"' +\n            toFixed(this.blur ? this.blur / 2 : 0, NUM_FRACTION_DIGITS) + '\"></feGaussianBlur>\\n' +\n          '\\t<feOffset dx=\"' + toFixed(offset.x, NUM_FRACTION_DIGITS) +\n          '\" dy=\"' + toFixed(offset.y, NUM_FRACTION_DIGITS) + '\" result=\"oBlur\" ></feOffset>\\n' +\n          '\\t<feFlood flood-color=\"' + color.toRgb() + '\" flood-opacity=\"' + color.getAlpha() + '\"/>\\n' +\n          '\\t<feComposite in2=\"oBlur\" operator=\"in\" />\\n' +\n          '\\t<feMerge>\\n' +\n            '\\t\\t<feMergeNode></feMergeNode>\\n' +\n            '\\t\\t<feMergeNode in=\"SourceGraphic\"></feMergeNode>\\n' +\n          '\\t</feMerge>\\n' +\n        '</filter>\\n');\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns object representation of a shadow\n     * @return {Object} Object representation of a shadow instance\n     */\n    toObject: function() {\n      if (this.includeDefaultValues) {\n        return {\n          color: this.color,\n          blur: this.blur,\n          offsetX: this.offsetX,\n          offsetY: this.offsetY,\n          affectStroke: this.affectStroke,\n          nonScaling: this.nonScaling\n        };\n      }\n      var obj = { }, proto = fabric.Shadow.prototype;\n\n      ['color', 'blur', 'offsetX', 'offsetY', 'affectStroke', 'nonScaling'].forEach(function(prop) {\n        if (this[prop] !== proto[prop]) {\n          obj[prop] = this[prop];\n        }\n      }, this);\n\n      return obj;\n    }\n  });\n\n  /**\n   * Regex matching shadow offsetX, offsetY and blur (ex: \"2px 2px 10px rgba(0,0,0,0.2)\", \"rgb(0,255,0) 2px 2px\")\n   * @static\n   * @field\n   * @memberOf fabric.Shadow\n   */\n  // eslint-disable-next-line max-len\n  fabric.Shadow.reOffsetsAndBlur = /(?:\\s|^)(-?\\d+(?:px)?(?:\\s?|$))?(-?\\d+(?:px)?(?:\\s?|$))?(\\d+(?:px)?)?(?:\\s?|$)(?:$|\\s)/;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function () {\n\n  'use strict';\n\n  if (fabric.StaticCanvas) {\n    fabric.warn('fabric.StaticCanvas is already defined.');\n    return;\n  }\n\n  // aliases for faster resolution\n  var extend = fabric.util.object.extend,\n      getElementOffset = fabric.util.getElementOffset,\n      removeFromArray = fabric.util.removeFromArray,\n      toFixed = fabric.util.toFixed,\n      transformPoint = fabric.util.transformPoint,\n      invertTransform = fabric.util.invertTransform,\n      getNodeCanvas = fabric.util.getNodeCanvas,\n      createCanvasElement = fabric.util.createCanvasElement,\n\n      CANVAS_INIT_ERROR = new Error('Could not initialize `canvas` element');\n\n  /**\n   * Static canvas class\n   * @class fabric.StaticCanvas\n   * @mixes fabric.Collection\n   * @mixes fabric.Observable\n   * @see {@link http://fabricjs.com/static_canvas|StaticCanvas demo}\n   * @see {@link fabric.StaticCanvas#initialize} for constructor definition\n   * @fires before:render\n   * @fires after:render\n   * @fires canvas:cleared\n   * @fires object:added\n   * @fires object:removed\n   */\n  fabric.StaticCanvas = fabric.util.createClass(fabric.CommonMethods, /** @lends fabric.StaticCanvas.prototype */ {\n\n    /**\n     * Constructor\n     * @param {HTMLElement | String} el &lt;canvas> element to initialize instance on\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(el, options) {\n      options || (options = { });\n      this.renderAndResetBound = this.renderAndReset.bind(this);\n      this.requestRenderAllBound = this.requestRenderAll.bind(this);\n      this._initStatic(el, options);\n    },\n\n    /**\n     * Background color of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setBackgroundColor}.\n     * @type {(String|fabric.Pattern)}\n     * @default\n     */\n    backgroundColor: '',\n\n    /**\n     * Background image of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setBackgroundImage}.\n     * <b>Backwards incompatibility note:</b> The \"backgroundImageOpacity\"\n     * and \"backgroundImageStretch\" properties are deprecated since 1.3.9.\n     * Use {@link fabric.Image#opacity}, {@link fabric.Image#width} and {@link fabric.Image#height}.\n     * since 2.4.0 image caching is active, please when putting an image as background, add to the\n     * canvas property a reference to the canvas it is on. Otherwise the image cannot detect the zoom\n     * vale. As an alternative you can disable image objectCaching\n     * @type fabric.Image\n     * @default\n     */\n    backgroundImage: null,\n\n    /**\n     * Overlay color of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setOverlayColor}\n     * @since 1.3.9\n     * @type {(String|fabric.Pattern)}\n     * @default\n     */\n    overlayColor: '',\n\n    /**\n     * Overlay image of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setOverlayImage}.\n     * <b>Backwards incompatibility note:</b> The \"overlayImageLeft\"\n     * and \"overlayImageTop\" properties are deprecated since 1.3.9.\n     * Use {@link fabric.Image#left} and {@link fabric.Image#top}.\n     * since 2.4.0 image caching is active, please when putting an image as overlay, add to the\n     * canvas property a reference to the canvas it is on. Otherwise the image cannot detect the zoom\n     * vale. As an alternative you can disable image objectCaching\n     * @type fabric.Image\n     * @default\n     */\n    overlayImage: null,\n\n    /**\n     * Indicates whether toObject/toDatalessObject should include default values\n     * if set to false, takes precedence over the object value.\n     * @type Boolean\n     * @default\n     */\n    includeDefaultValues: true,\n\n    /**\n     * Indicates whether objects' state should be saved\n     * @type Boolean\n     * @default\n     */\n    stateful: false,\n\n    /**\n     * Indicates whether {@link fabric.Collection.add}, {@link fabric.Collection.insertAt} and {@link fabric.Collection.remove},\n     * {@link fabric.StaticCanvas.moveTo}, {@link fabric.StaticCanvas.clear} and many more, should also re-render canvas.\n     * Disabling this option will not give a performance boost when adding/removing a lot of objects to/from canvas at once\n     * since the renders are quequed and executed one per frame.\n     * Disabling is suggested anyway and managing the renders of the app manually is not a big effort ( canvas.requestRenderAll() )\n     * Left default to true to do not break documentation and old app, fiddles.\n     * @type Boolean\n     * @default\n     */\n    renderOnAddRemove: true,\n\n    /**\n     * Function that determines clipping of entire canvas area\n     * Being passed context as first argument.\n     * If you are using code minification, ctx argument can be minified/manglied you should use\n     * as a workaround `var ctx = arguments[0];` in the function;\n     * See clipping canvas area in {@link https://github.com/kangax/fabric.js/wiki/FAQ}\n     * @deprecated since 2.0.0\n     * @type Function\n     * @default\n     */\n    clipTo: null,\n\n    /**\n     * Indicates whether object controls (borders/controls) are rendered above overlay image\n     * @type Boolean\n     * @default\n     */\n    controlsAboveOverlay: false,\n\n    /**\n     * Indicates whether the browser can be scrolled when using a touchscreen and dragging on the canvas\n     * @type Boolean\n     * @default\n     */\n    allowTouchScrolling: false,\n\n    /**\n     * Indicates whether this canvas will use image smoothing, this is on by default in browsers\n     * @type Boolean\n     * @default\n     */\n    imageSmoothingEnabled: true,\n\n    /**\n     * The transformation (in the format of Canvas transform) which focuses the viewport\n     * @type Array\n     * @default\n     */\n    viewportTransform: fabric.iMatrix.concat(),\n\n    /**\n     * if set to false background image is not affected by viewport transform\n     * @since 1.6.3\n     * @type Boolean\n     * @default\n     */\n    backgroundVpt: true,\n\n    /**\n     * if set to false overlya image is not affected by viewport transform\n     * @since 1.6.3\n     * @type Boolean\n     * @default\n     */\n    overlayVpt: true,\n\n    /**\n     * Callback; invoked right before object is about to be scaled/rotated\n     * @deprecated since 2.3.0\n     * Use before:transform event\n     */\n    onBeforeScaleRotate: function () {\n      /* NOOP */\n    },\n\n    /**\n     * When true, canvas is scaled by devicePixelRatio for better rendering on retina screens\n     * @type Boolean\n     * @default\n     */\n    enableRetinaScaling: true,\n\n    /**\n     * Describe canvas element extension over design\n     * properties are tl,tr,bl,br.\n     * if canvas is not zoomed/panned those points are the four corner of canvas\n     * if canvas is viewportTransformed you those points indicate the extension\n     * of canvas element in plain untrasformed coordinates\n     * The coordinates get updated with @method calcViewportBoundaries.\n     * @memberOf fabric.StaticCanvas.prototype\n     */\n    vptCoords: { },\n\n    /**\n     * Based on vptCoords and object.aCoords, skip rendering of objects that\n     * are not included in current viewport.\n     * May greatly help in applications with crowded canvas and use of zoom/pan\n     * If One of the corner of the bounding box of the object is on the canvas\n     * the objects get rendered.\n     * @memberOf fabric.StaticCanvas.prototype\n     * @type Boolean\n     * @default\n     */\n    skipOffscreen: true,\n\n    /**\n     * a fabricObject that, without stroke define a clipping area with their shape. filled in black\n     * the clipPath object gets used when the canvas has rendered, and the context is placed in the\n     * top left corner of the canvas.\n     * clipPath will clip away controls, if you do not want this to happen use controlsAboveOverlay = true\n     * @type fabric.Object\n     */\n    clipPath: undefined,\n\n    /**\n     * @private\n     * @param {HTMLElement | String} el &lt;canvas> element to initialize instance on\n     * @param {Object} [options] Options object\n     */\n    _initStatic: function(el, options) {\n      var cb = this.requestRenderAllBound;\n      this._objects = [];\n      this._createLowerCanvas(el);\n      this._initOptions(options);\n      this._setImageSmoothing();\n      // only initialize retina scaling once\n      if (!this.interactive) {\n        this._initRetinaScaling();\n      }\n\n      if (options.overlayImage) {\n        this.setOverlayImage(options.overlayImage, cb);\n      }\n      if (options.backgroundImage) {\n        this.setBackgroundImage(options.backgroundImage, cb);\n      }\n      if (options.backgroundColor) {\n        this.setBackgroundColor(options.backgroundColor, cb);\n      }\n      if (options.overlayColor) {\n        this.setOverlayColor(options.overlayColor, cb);\n      }\n      this.calcOffset();\n    },\n\n    /**\n     * @private\n     */\n    _isRetinaScaling: function() {\n      return (fabric.devicePixelRatio !== 1 && this.enableRetinaScaling);\n    },\n\n    /**\n     * @private\n     * @return {Number} retinaScaling if applied, otherwise 1;\n     */\n    getRetinaScaling: function() {\n      return this._isRetinaScaling() ? fabric.devicePixelRatio : 1;\n    },\n\n    /**\n     * @private\n     */\n    _initRetinaScaling: function() {\n      if (!this._isRetinaScaling()) {\n        return;\n      }\n      var scaleRatio = fabric.devicePixelRatio;\n      this.__initRetinaScaling(scaleRatio, this.lowerCanvasEl, this.contextContainer);\n      if (this.upperCanvasEl) {\n        this.__initRetinaScaling(scaleRatio, this.upperCanvasEl, this.contextTop);\n      }\n    },\n\n    __initRetinaScaling: function(scaleRatio, canvas, context) {\n      canvas.setAttribute('width', this.width * scaleRatio);\n      canvas.setAttribute('height', this.height * scaleRatio);\n      context.scale(scaleRatio, scaleRatio);\n    },\n\n\n    /**\n     * Calculates canvas element offset relative to the document\n     * This method is also attached as \"resize\" event handler of window\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    calcOffset: function () {\n      this._offset = getElementOffset(this.lowerCanvasEl);\n      return this;\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#overlayImage|overlay image} for this canvas\n     * @param {(fabric.Image|String)} image fabric.Image instance or URL of an image to set overlay to\n     * @param {Function} callback callback to invoke when image is loaded and set as an overlay\n     * @param {Object} [options] Optional options to set for the {@link fabric.Image|overlay image}.\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/fabricjs/MnzHT/|jsFiddle demo}\n     * @example <caption>Normal overlayImage with left/top = 0</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   // Needed to position overlayImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>overlayImage with different properties</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>Stretched overlayImage #1 - width/height correspond to canvas width/height</caption>\n     * fabric.Image.fromURL('http://fabricjs.com/assets/jail_cell_bars.png', function(img) {\n     *    img.set({width: canvas.width, height: canvas.height, originX: 'left', originY: 'top'});\n     *    canvas.setOverlayImage(img, canvas.renderAll.bind(canvas));\n     * });\n     * @example <caption>Stretched overlayImage #2 - width/height correspond to canvas width/height</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   width: canvas.width,\n     *   height: canvas.height,\n     *   // Needed to position overlayImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>overlayImage loaded from cross-origin</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top',\n     *   crossOrigin: 'anonymous'\n     * });\n     */\n    setOverlayImage: function (image, callback, options) {\n      return this.__setBgOverlayImage('overlayImage', image, callback, options);\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#backgroundImage|background image} for this canvas\n     * @param {(fabric.Image|String)} image fabric.Image instance or URL of an image to set background to\n     * @param {Function} callback Callback to invoke when image is loaded and set as background\n     * @param {Object} [options] Optional options to set for the {@link fabric.Image|background image}.\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/djnr8o7a/28/|jsFiddle demo}\n     * @example <caption>Normal backgroundImage with left/top = 0</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   // Needed to position backgroundImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>backgroundImage with different properties</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>Stretched backgroundImage #1 - width/height correspond to canvas width/height</caption>\n     * fabric.Image.fromURL('http://fabricjs.com/assets/honey_im_subtle.png', function(img) {\n     *    img.set({width: canvas.width, height: canvas.height, originX: 'left', originY: 'top'});\n     *    canvas.setBackgroundImage(img, canvas.renderAll.bind(canvas));\n     * });\n     * @example <caption>Stretched backgroundImage #2 - width/height correspond to canvas width/height</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   width: canvas.width,\n     *   height: canvas.height,\n     *   // Needed to position backgroundImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>backgroundImage loaded from cross-origin</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top',\n     *   crossOrigin: 'anonymous'\n     * });\n     */\n    // TODO: fix stretched examples\n    setBackgroundImage: function (image, callback, options) {\n      return this.__setBgOverlayImage('backgroundImage', image, callback, options);\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#overlayColor|foreground color} for this canvas\n     * @param {(String|fabric.Pattern)} overlayColor Color or pattern to set foreground color to\n     * @param {Function} callback Callback to invoke when foreground color is set\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/fabricjs/pB55h/|jsFiddle demo}\n     * @example <caption>Normal overlayColor - color value</caption>\n     * canvas.setOverlayColor('rgba(255, 73, 64, 0.6)', canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as overlayColor</caption>\n     * canvas.setOverlayColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png'\n     * }, canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as overlayColor with repeat and offset</caption>\n     * canvas.setOverlayColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png',\n     *   repeat: 'repeat',\n     *   offsetX: 200,\n     *   offsetY: 100\n     * }, canvas.renderAll.bind(canvas));\n     */\n    setOverlayColor: function(overlayColor, callback) {\n      return this.__setBgOverlayColor('overlayColor', overlayColor, callback);\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#backgroundColor|background color} for this canvas\n     * @param {(String|fabric.Pattern)} backgroundColor Color or pattern to set background color to\n     * @param {Function} callback Callback to invoke when background color is set\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/fabricjs/hXzvk/|jsFiddle demo}\n     * @example <caption>Normal backgroundColor - color value</caption>\n     * canvas.setBackgroundColor('rgba(255, 73, 64, 0.6)', canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as backgroundColor</caption>\n     * canvas.setBackgroundColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png'\n     * }, canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as backgroundColor with repeat and offset</caption>\n     * canvas.setBackgroundColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png',\n     *   repeat: 'repeat',\n     *   offsetX: 200,\n     *   offsetY: 100\n     * }, canvas.renderAll.bind(canvas));\n     */\n    setBackgroundColor: function(backgroundColor, callback) {\n      return this.__setBgOverlayColor('backgroundColor', backgroundColor, callback);\n    },\n\n    /**\n     * @private\n     * @see {@link http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-imagesmoothingenabled|WhatWG Canvas Standard}\n     */\n    _setImageSmoothing: function() {\n      var ctx = this.getContext();\n\n      ctx.imageSmoothingEnabled = ctx.imageSmoothingEnabled || ctx.webkitImageSmoothingEnabled\n        || ctx.mozImageSmoothingEnabled || ctx.msImageSmoothingEnabled || ctx.oImageSmoothingEnabled;\n      ctx.imageSmoothingEnabled = this.imageSmoothingEnabled;\n    },\n\n    /**\n     * @private\n     * @param {String} property Property to set ({@link fabric.StaticCanvas#backgroundImage|backgroundImage}\n     * or {@link fabric.StaticCanvas#overlayImage|overlayImage})\n     * @param {(fabric.Image|String|null)} image fabric.Image instance, URL of an image or null to set background or overlay to\n     * @param {Function} callback Callback to invoke when image is loaded and set as background or overlay\n     * @param {Object} [options] Optional options to set for the {@link fabric.Image|image}.\n     */\n    __setBgOverlayImage: function(property, image, callback, options) {\n      if (typeof image === 'string') {\n        fabric.util.loadImage(image, function(img) {\n          if (img) {\n            var instance = new fabric.Image(img, options);\n            this[property] = instance;\n            instance.canvas = this;\n          }\n          callback && callback(img);\n        }, this, options && options.crossOrigin);\n      }\n      else {\n        options && image.setOptions(options);\n        this[property] = image;\n        image && (image.canvas = this);\n        callback && callback(image);\n      }\n\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {String} property Property to set ({@link fabric.StaticCanvas#backgroundColor|backgroundColor}\n     * or {@link fabric.StaticCanvas#overlayColor|overlayColor})\n     * @param {(Object|String|null)} color Object with pattern information, color value or null\n     * @param {Function} [callback] Callback is invoked when color is set\n     */\n    __setBgOverlayColor: function(property, color, callback) {\n      this[property] = color;\n      this._initGradient(color, property);\n      this._initPattern(color, property, callback);\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _createCanvasElement: function() {\n      var element = createCanvasElement();\n      if (!element) {\n        throw CANVAS_INIT_ERROR;\n      }\n      if (!element.style) {\n        element.style = { };\n      }\n      if (typeof element.getContext === 'undefined') {\n        throw CANVAS_INIT_ERROR;\n      }\n      return element;\n    },\n\n    /**\n     * @private\n     * @param {Object} [options] Options object\n     */\n    _initOptions: function (options) {\n      var lowerCanvasEl = this.lowerCanvasEl;\n      this._setOptions(options);\n\n      this.width = this.width || parseInt(lowerCanvasEl.width, 10) || 0;\n      this.height = this.height || parseInt(lowerCanvasEl.height, 10) || 0;\n\n      if (!this.lowerCanvasEl.style) {\n        return;\n      }\n\n      lowerCanvasEl.width = this.width;\n      lowerCanvasEl.height = this.height;\n\n      lowerCanvasEl.style.width = this.width + 'px';\n      lowerCanvasEl.style.height = this.height + 'px';\n\n      this.viewportTransform = this.viewportTransform.slice();\n    },\n\n    /**\n     * Creates a bottom canvas\n     * @private\n     * @param {HTMLElement} [canvasEl]\n     */\n    _createLowerCanvas: function (canvasEl) {\n      // canvasEl === 'HTMLCanvasElement' does not work on jsdom/node\n      if (canvasEl && canvasEl.getContext) {\n        this.lowerCanvasEl = canvasEl;\n      }\n      else {\n        this.lowerCanvasEl = fabric.util.getById(canvasEl) || this._createCanvasElement();\n      }\n\n      fabric.util.addClass(this.lowerCanvasEl, 'lower-canvas');\n\n      if (this.interactive) {\n        this._applyCanvasStyle(this.lowerCanvasEl);\n      }\n\n      this.contextContainer = this.lowerCanvasEl.getContext('2d');\n    },\n\n    /**\n     * Returns canvas width (in px)\n     * @return {Number}\n     */\n    getWidth: function () {\n      return this.width;\n    },\n\n    /**\n     * Returns canvas height (in px)\n     * @return {Number}\n     */\n    getHeight: function () {\n      return this.height;\n    },\n\n    /**\n     * Sets width of this canvas instance\n     * @param {Number|String} value                         Value to set width to\n     * @param {Object}        [options]                     Options object\n     * @param {Boolean}       [options.backstoreOnly=false] Set the given dimensions only as canvas backstore dimensions\n     * @param {Boolean}       [options.cssOnly=false]       Set the given dimensions only as css dimensions\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setWidth: function (value, options) {\n      return this.setDimensions({ width: value }, options);\n    },\n\n    /**\n     * Sets height of this canvas instance\n     * @param {Number|String} value                         Value to set height to\n     * @param {Object}        [options]                     Options object\n     * @param {Boolean}       [options.backstoreOnly=false] Set the given dimensions only as canvas backstore dimensions\n     * @param {Boolean}       [options.cssOnly=false]       Set the given dimensions only as css dimensions\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setHeight: function (value, options) {\n      return this.setDimensions({ height: value }, options);\n    },\n\n    /**\n     * Sets dimensions (width, height) of this canvas instance. when options.cssOnly flag active you should also supply the unit of measure (px/%/em)\n     * @param {Object}        dimensions                    Object with width/height properties\n     * @param {Number|String} [dimensions.width]            Width of canvas element\n     * @param {Number|String} [dimensions.height]           Height of canvas element\n     * @param {Object}        [options]                     Options object\n     * @param {Boolean}       [options.backstoreOnly=false] Set the given dimensions only as canvas backstore dimensions\n     * @param {Boolean}       [options.cssOnly=false]       Set the given dimensions only as css dimensions\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    setDimensions: function (dimensions, options) {\n      var cssValue;\n\n      options = options || {};\n\n      for (var prop in dimensions) {\n        cssValue = dimensions[prop];\n\n        if (!options.cssOnly) {\n          this._setBackstoreDimension(prop, dimensions[prop]);\n          cssValue += 'px';\n          this.hasLostContext = true;\n        }\n\n        if (!options.backstoreOnly) {\n          this._setCssDimension(prop, cssValue);\n        }\n      }\n      if (this._isCurrentlyDrawing) {\n        this.freeDrawingBrush && this.freeDrawingBrush._setBrushStyles();\n      }\n      this._initRetinaScaling();\n      this._setImageSmoothing();\n      this.calcOffset();\n\n      if (!options.cssOnly) {\n        this.requestRenderAll();\n      }\n\n      return this;\n    },\n\n    /**\n     * Helper for setting width/height\n     * @private\n     * @param {String} prop property (width|height)\n     * @param {Number} value value to set property to\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    _setBackstoreDimension: function (prop, value) {\n      this.lowerCanvasEl[prop] = value;\n\n      if (this.upperCanvasEl) {\n        this.upperCanvasEl[prop] = value;\n      }\n\n      if (this.cacheCanvasEl) {\n        this.cacheCanvasEl[prop] = value;\n      }\n\n      this[prop] = value;\n\n      return this;\n    },\n\n    /**\n     * Helper for setting css width/height\n     * @private\n     * @param {String} prop property (width|height)\n     * @param {String} value value to set property to\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    _setCssDimension: function (prop, value) {\n      this.lowerCanvasEl.style[prop] = value;\n\n      if (this.upperCanvasEl) {\n        this.upperCanvasEl.style[prop] = value;\n      }\n\n      if (this.wrapperEl) {\n        this.wrapperEl.style[prop] = value;\n      }\n\n      return this;\n    },\n\n    /**\n     * Returns canvas zoom level\n     * @return {Number}\n     */\n    getZoom: function () {\n      return this.viewportTransform[0];\n    },\n\n    /**\n     * Sets viewport transform of this canvas instance\n     * @param {Array} vpt the transform in the form of context.transform\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setViewportTransform: function (vpt) {\n      var activeObject = this._activeObject, object, ignoreVpt = false, skipAbsolute = true, i, len;\n      this.viewportTransform = vpt;\n      for (i = 0, len = this._objects.length; i < len; i++) {\n        object = this._objects[i];\n        object.group || object.setCoords(ignoreVpt, skipAbsolute);\n      }\n      if (activeObject && activeObject.type === 'activeSelection') {\n        activeObject.setCoords(ignoreVpt, skipAbsolute);\n      }\n      this.calcViewportBoundaries();\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Sets zoom level of this canvas instance, zoom centered around point\n     * @param {fabric.Point} point to zoom with respect to\n     * @param {Number} value to set zoom to, less than 1 zooms out\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    zoomToPoint: function (point, value) {\n      // TODO: just change the scale, preserve other transformations\n      var before = point, vpt = this.viewportTransform.slice(0);\n      point = transformPoint(point, invertTransform(this.viewportTransform));\n      vpt[0] = value;\n      vpt[3] = value;\n      var after = transformPoint(point, vpt);\n      vpt[4] += before.x - after.x;\n      vpt[5] += before.y - after.y;\n      return this.setViewportTransform(vpt);\n    },\n\n    /**\n     * Sets zoom level of this canvas instance\n     * @param {Number} value to set zoom to, less than 1 zooms out\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setZoom: function (value) {\n      this.zoomToPoint(new fabric.Point(0, 0), value);\n      return this;\n    },\n\n    /**\n     * Pan viewport so as to place point at top left corner of canvas\n     * @param {fabric.Point} point to move to\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    absolutePan: function (point) {\n      var vpt = this.viewportTransform.slice(0);\n      vpt[4] = -point.x;\n      vpt[5] = -point.y;\n      return this.setViewportTransform(vpt);\n    },\n\n    /**\n     * Pans viewpoint relatively\n     * @param {fabric.Point} point (position vector) to move by\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    relativePan: function (point) {\n      return this.absolutePan(new fabric.Point(\n        -point.x - this.viewportTransform[4],\n        -point.y - this.viewportTransform[5]\n      ));\n    },\n\n    /**\n     * Returns &lt;canvas> element corresponding to this instance\n     * @return {HTMLCanvasElement}\n     */\n    getElement: function () {\n      return this.lowerCanvasEl;\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} obj Object that was added\n     */\n    _onObjectAdded: function(obj) {\n      this.stateful && obj.setupState();\n      obj._set('canvas', this);\n      obj.setCoords();\n      this.fire('object:added', { target: obj });\n      obj.fire('added');\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} obj Object that was removed\n     */\n    _onObjectRemoved: function(obj) {\n      this.fire('object:removed', { target: obj });\n      obj.fire('removed');\n      delete obj.canvas;\n    },\n\n    /**\n     * Clears specified context of canvas element\n     * @param {CanvasRenderingContext2D} ctx Context to clear\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    clearContext: function(ctx) {\n      ctx.clearRect(0, 0, this.width, this.height);\n      return this;\n    },\n\n    /**\n     * Returns context of canvas where objects are drawn\n     * @return {CanvasRenderingContext2D}\n     */\n    getContext: function () {\n      return this.contextContainer;\n    },\n\n    /**\n     * Clears all contexts (background, main, top) of an instance\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    clear: function () {\n      this._objects.length = 0;\n      this.backgroundImage = null;\n      this.overlayImage = null;\n      this.backgroundColor = '';\n      this.overlayColor = '';\n      if (this._hasITextHandlers) {\n        this.off('mouse:up', this._mouseUpITextHandler);\n        this._iTextInstances = null;\n        this._hasITextHandlers = false;\n      }\n      this.clearContext(this.contextContainer);\n      this.fire('canvas:cleared');\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Renders the canvas\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderAll: function () {\n      var canvasToDrawOn = this.contextContainer;\n      this.renderCanvas(canvasToDrawOn, this._objects);\n      return this;\n    },\n\n    /**\n     * Function created to be instance bound at initialization\n     * used in requestAnimationFrame rendering\n     * Let the fabricJS call it. If you call it manually you could have more\n     * animationFrame stacking on to of each other\n     * for an imperative rendering, use canvas.renderAll\n     * @private\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderAndReset: function() {\n      this.isRendering = 0;\n      this.renderAll();\n    },\n\n    /**\n     * Append a renderAll request to next animation frame.\n     * unless one is already in progress, in that case nothing is done\n     * a boolean flag will avoid appending more.\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    requestRenderAll: function () {\n      if (!this.isRendering) {\n        this.isRendering = fabric.util.requestAnimFrame(this.renderAndResetBound);\n      }\n      return this;\n    },\n\n    /**\n     * Calculate the position of the 4 corner of canvas with current viewportTransform.\n     * helps to determinate when an object is in the current rendering viewport using\n     * object absolute coordinates ( aCoords )\n     * @return {Object} points.tl\n     * @chainable\n     */\n    calcViewportBoundaries: function() {\n      var points = { }, width = this.width, height = this.height,\n          iVpt = invertTransform(this.viewportTransform);\n      points.tl = transformPoint({ x: 0, y: 0 }, iVpt);\n      points.br = transformPoint({ x: width, y: height }, iVpt);\n      points.tr = new fabric.Point(points.br.x, points.tl.y);\n      points.bl = new fabric.Point(points.tl.x, points.br.y);\n      this.vptCoords = points;\n      return points;\n    },\n\n    cancelRequestedRender: function() {\n      if (this.isRendering) {\n        fabric.util.cancelAnimFrame(this.isRendering);\n        this.isRendering = 0;\n      }\n    },\n\n    /**\n     * Renders background, objects, overlay and controls.\n     * @param {CanvasRenderingContext2D} ctx\n     * @param {Array} objects to render\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderCanvas: function(ctx, objects) {\n      var v = this.viewportTransform, path = this.clipPath;\n      this.cancelRequestedRender();\n      this.calcViewportBoundaries();\n      this.clearContext(ctx);\n      this.fire('before:render', { ctx: ctx, });\n      if (this.clipTo) {\n        fabric.util.clipContext(this, ctx);\n      }\n      this._renderBackground(ctx);\n\n      ctx.save();\n      //apply viewport transform once for all rendering process\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      this._renderObjects(ctx, objects);\n      ctx.restore();\n      if (!this.controlsAboveOverlay && this.interactive) {\n        this.drawControls(ctx);\n      }\n      if (this.clipTo) {\n        ctx.restore();\n      }\n      if (path) {\n        path.canvas = this;\n        // needed to setup a couple of variables\n        path.shouldCache();\n        path._transformDone = true;\n        path.renderCache({ forClipping: true });\n        this.drawClipPathOnCanvas(ctx);\n      }\n      this._renderOverlay(ctx);\n      if (this.controlsAboveOverlay && this.interactive) {\n        this.drawControls(ctx);\n      }\n      this.fire('after:render', { ctx: ctx, });\n    },\n\n    /**\n     * Paint the cached clipPath on the lowerCanvasEl\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawClipPathOnCanvas: function(ctx) {\n      var v = this.viewportTransform, path = this.clipPath;\n      ctx.save();\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      // DEBUG: uncomment this line, comment the following\n      // ctx.globalAlpha = 0.4;\n      ctx.globalCompositeOperation = 'destination-in';\n      path.transform(ctx);\n      ctx.scale(1 / path.zoomX, 1 / path.zoomY);\n      ctx.drawImage(path._cacheCanvas, -path.cacheTranslationX, -path.cacheTranslationY);\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Array} objects to render\n     */\n    _renderObjects: function(ctx, objects) {\n      var i, len;\n      for (i = 0, len = objects.length; i < len; ++i) {\n        objects[i] && objects[i].render(ctx);\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {string} property 'background' or 'overlay'\n     */\n    _renderBackgroundOrOverlay: function(ctx, property) {\n      var fill = this[property + 'Color'], object = this[property + 'Image'],\n          v = this.viewportTransform, needsVpt = this[property + 'Vpt'];\n      if (!fill && !object) {\n        return;\n      }\n      if (fill) {\n        ctx.save();\n        ctx.beginPath();\n        ctx.moveTo(0, 0);\n        ctx.lineTo(this.width, 0);\n        ctx.lineTo(this.width, this.height);\n        ctx.lineTo(0, this.height);\n        ctx.closePath();\n        ctx.fillStyle = fill.toLive\n          ? fill.toLive(ctx, this)\n          : fill;\n        if (needsVpt) {\n          ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n        }\n        ctx.transform(1, 0, 0, 1, fill.offsetX || 0, fill.offsetY || 0);\n        var m = fill.gradientTransform || fill.patternTransform;\n        m && ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n        ctx.fill();\n        ctx.restore();\n      }\n      if (object) {\n        ctx.save();\n        if (needsVpt) {\n          ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n        }\n        object.render(ctx);\n        ctx.restore();\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderBackground: function(ctx) {\n      this._renderBackgroundOrOverlay(ctx, 'background');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderOverlay: function(ctx) {\n      this._renderBackgroundOrOverlay(ctx, 'overlay');\n    },\n\n    /**\n     * Returns coordinates of a center of canvas.\n     * Returned value is an object with top and left properties\n     * @return {Object} object with \"top\" and \"left\" number values\n     */\n    getCenter: function () {\n      return {\n        top: this.height / 2,\n        left: this.width / 2\n      };\n    },\n\n    /**\n     * Centers object horizontally in the canvas\n     * @param {fabric.Object} object Object to center horizontally\n     * @return {fabric.Canvas} thisArg\n     */\n    centerObjectH: function (object) {\n      return this._centerObject(object, new fabric.Point(this.getCenter().left, object.getCenterPoint().y));\n    },\n\n    /**\n     * Centers object vertically in the canvas\n     * @param {fabric.Object} object Object to center vertically\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    centerObjectV: function (object) {\n      return this._centerObject(object, new fabric.Point(object.getCenterPoint().x, this.getCenter().top));\n    },\n\n    /**\n     * Centers object vertically and horizontally in the canvas\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    centerObject: function(object) {\n      var center = this.getCenter();\n\n      return this._centerObject(object, new fabric.Point(center.left, center.top));\n    },\n\n    /**\n     * Centers object vertically and horizontally in the viewport\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    viewportCenterObject: function(object) {\n      var vpCenter = this.getVpCenter();\n\n      return this._centerObject(object, vpCenter);\n    },\n\n    /**\n     * Centers object horizontally in the viewport, object.top is unchanged\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    viewportCenterObjectH: function(object) {\n      var vpCenter = this.getVpCenter();\n      this._centerObject(object, new fabric.Point(vpCenter.x, object.getCenterPoint().y));\n      return this;\n    },\n\n    /**\n     * Centers object Vertically in the viewport, object.top is unchanged\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    viewportCenterObjectV: function(object) {\n      var vpCenter = this.getVpCenter();\n\n      return this._centerObject(object, new fabric.Point(object.getCenterPoint().x, vpCenter.y));\n    },\n\n    /**\n     * Calculate the point in canvas that correspond to the center of actual viewport.\n     * @return {fabric.Point} vpCenter, viewport center\n     * @chainable\n     */\n    getVpCenter: function() {\n      var center = this.getCenter(),\n          iVpt = invertTransform(this.viewportTransform);\n      return transformPoint({ x: center.left, y: center.top }, iVpt);\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} object Object to center\n     * @param {fabric.Point} center Center point\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    _centerObject: function(object, center) {\n      object.setPositionByOrigin(center, 'center', 'center');\n      object.setCoords();\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Returs dataless JSON representation of canvas\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {String} json string\n     */\n    toDatalessJSON: function (propertiesToInclude) {\n      return this.toDatalessObject(propertiesToInclude);\n    },\n\n    /**\n     * Returns object representation of canvas\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function (propertiesToInclude) {\n      return this._toObjectMethod('toObject', propertiesToInclude);\n    },\n\n    /**\n     * Returns dataless object representation of canvas\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toDatalessObject: function (propertiesToInclude) {\n      return this._toObjectMethod('toDatalessObject', propertiesToInclude);\n    },\n\n    /**\n     * @private\n     */\n    _toObjectMethod: function (methodName, propertiesToInclude) {\n\n      var clipPath = this.clipPath, data = {\n        version: fabric.version,\n        objects: this._toObjects(methodName, propertiesToInclude),\n      };\n      if (clipPath) {\n        data.clipPath = this._toObject(this.clipPath, methodName, propertiesToInclude);\n      }\n      extend(data, this.__serializeBgOverlay(methodName, propertiesToInclude));\n\n      fabric.util.populateWithProperties(this, data, propertiesToInclude);\n\n      return data;\n    },\n\n    /**\n     * @private\n     */\n    _toObjects: function(methodName, propertiesToInclude) {\n      return this._objects.filter(function(object) {\n        return !object.excludeFromExport;\n      }).map(function(instance) {\n        return this._toObject(instance, methodName, propertiesToInclude);\n      }, this);\n    },\n\n    /**\n     * @private\n     */\n    _toObject: function(instance, methodName, propertiesToInclude) {\n      var originalValue;\n\n      if (!this.includeDefaultValues) {\n        originalValue = instance.includeDefaultValues;\n        instance.includeDefaultValues = false;\n      }\n\n      var object = instance[methodName](propertiesToInclude);\n      if (!this.includeDefaultValues) {\n        instance.includeDefaultValues = originalValue;\n      }\n      return object;\n    },\n\n    /**\n     * @private\n     */\n    __serializeBgOverlay: function(methodName, propertiesToInclude) {\n      var data = { }, bgImage = this.backgroundImage, overlay = this.overlayImage;\n\n      if (this.backgroundColor) {\n        data.background = this.backgroundColor.toObject\n          ? this.backgroundColor.toObject(propertiesToInclude)\n          : this.backgroundColor;\n      }\n\n      if (this.overlayColor) {\n        data.overlay = this.overlayColor.toObject\n          ? this.overlayColor.toObject(propertiesToInclude)\n          : this.overlayColor;\n      }\n      if (bgImage && !bgImage.excludeFromExport) {\n        data.backgroundImage = this._toObject(bgImage, methodName, propertiesToInclude);\n      }\n      if (overlay && !overlay.excludeFromExport) {\n        data.overlayImage = this._toObject(overlay, methodName, propertiesToInclude);\n      }\n\n      return data;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * When true, getSvgTransform() will apply the StaticCanvas.viewportTransform to the SVG transformation. When true,\n     * a zoomed canvas will then produce zoomed SVG output.\n     * @type Boolean\n     * @default\n     */\n    svgViewportTransformation: true,\n\n    /**\n     * Returns SVG representation of canvas\n     * @function\n     * @param {Object} [options] Options object for SVG output\n     * @param {Boolean} [options.suppressPreamble=false] If true xml tag is not included\n     * @param {Object} [options.viewBox] SVG viewbox object\n     * @param {Number} [options.viewBox.x] x-cooridnate of viewbox\n     * @param {Number} [options.viewBox.y] y-coordinate of viewbox\n     * @param {Number} [options.viewBox.width] Width of viewbox\n     * @param {Number} [options.viewBox.height] Height of viewbox\n     * @param {String} [options.encoding=UTF-8] Encoding of SVG output\n     * @param {String} [options.width] desired width of svg with or without units\n     * @param {String} [options.height] desired height of svg with or without units\n     * @param {Function} [reviver] Method for further parsing of svg elements, called after each fabric object converted into svg representation.\n     * @return {String} SVG string\n     * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#serialization}\n     * @see {@link http://jsfiddle.net/fabricjs/jQ3ZZ/|jsFiddle demo}\n     * @example <caption>Normal SVG output</caption>\n     * var svg = canvas.toSVG();\n     * @example <caption>SVG output without preamble (without &lt;?xml ../>)</caption>\n     * var svg = canvas.toSVG({suppressPreamble: true});\n     * @example <caption>SVG output with viewBox attribute</caption>\n     * var svg = canvas.toSVG({\n     *   viewBox: {\n     *     x: 100,\n     *     y: 100,\n     *     width: 200,\n     *     height: 300\n     *   }\n     * });\n     * @example <caption>SVG output with different encoding (default: UTF-8)</caption>\n     * var svg = canvas.toSVG({encoding: 'ISO-8859-1'});\n     * @example <caption>Modify SVG output with reviver function</caption>\n     * var svg = canvas.toSVG(null, function(svg) {\n     *   return svg.replace('stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; ', '');\n     * });\n     */\n    toSVG: function(options, reviver) {\n      options || (options = { });\n      options.reviver = reviver;\n      var markup = [];\n\n      this._setSVGPreamble(markup, options);\n      this._setSVGHeader(markup, options);\n      if (this.clipPath) {\n        markup.push('<g clip-path=\"url(#' + this.clipPath.clipPathId + ')\" >\\n');\n      }\n      this._setSVGBgOverlayColor(markup, 'background');\n      this._setSVGBgOverlayImage(markup, 'backgroundImage', reviver);\n      this._setSVGObjects(markup, reviver);\n      if (this.clipPath) {\n        markup.push('</g>\\n');\n      }\n      this._setSVGBgOverlayColor(markup, 'overlay');\n      this._setSVGBgOverlayImage(markup, 'overlayImage', reviver);\n\n      markup.push('</svg>');\n\n      return markup.join('');\n    },\n\n    /**\n     * @private\n     */\n    _setSVGPreamble: function(markup, options) {\n      if (options.suppressPreamble) {\n        return;\n      }\n      markup.push(\n        '<?xml version=\"1.0\" encoding=\"', (options.encoding || 'UTF-8'), '\" standalone=\"no\" ?>\\n',\n        '<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" ',\n        '\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\\n'\n      );\n    },\n\n    /**\n     * @private\n     */\n    _setSVGHeader: function(markup, options) {\n      var width = options.width || this.width,\n          height = options.height || this.height,\n          vpt, viewBox = 'viewBox=\"0 0 ' + this.width + ' ' + this.height + '\" ',\n          NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n\n      if (options.viewBox) {\n        viewBox = 'viewBox=\"' +\n                options.viewBox.x + ' ' +\n                options.viewBox.y + ' ' +\n                options.viewBox.width + ' ' +\n                options.viewBox.height + '\" ';\n      }\n      else {\n        if (this.svgViewportTransformation) {\n          vpt = this.viewportTransform;\n          viewBox = 'viewBox=\"' +\n                  toFixed(-vpt[4] / vpt[0], NUM_FRACTION_DIGITS) + ' ' +\n                  toFixed(-vpt[5] / vpt[3], NUM_FRACTION_DIGITS) + ' ' +\n                  toFixed(this.width / vpt[0], NUM_FRACTION_DIGITS) + ' ' +\n                  toFixed(this.height / vpt[3], NUM_FRACTION_DIGITS) + '\" ';\n        }\n      }\n\n      markup.push(\n        '<svg ',\n        'xmlns=\"http://www.w3.org/2000/svg\" ',\n        'xmlns:xlink=\"http://www.w3.org/1999/xlink\" ',\n        'version=\"1.1\" ',\n        'width=\"', width, '\" ',\n        'height=\"', height, '\" ',\n        viewBox,\n        'xml:space=\"preserve\">\\n',\n        '<desc>Created with Fabric.js ', fabric.version, '</desc>\\n',\n        '<defs>\\n',\n        this.createSVGFontFacesMarkup(),\n        this.createSVGRefElementsMarkup(),\n        this.createSVGClipPathMarkup(options),\n        '</defs>\\n'\n      );\n    },\n\n    createSVGClipPathMarkup: function(options) {\n      var clipPath = this.clipPath;\n      if (clipPath) {\n        clipPath.clipPathId = 'CLIPPATH_' + fabric.Object.__uid++;\n        return  '<clipPath id=\"' + clipPath.clipPathId + '\" >\\n' +\n          this.clipPath.toClipPathSVG(options.reviver) +\n          '</clipPath>\\n';\n      }\n      return '';\n    },\n\n    /**\n     * Creates markup containing SVG referenced elements like patterns, gradients etc.\n     * @return {String}\n     */\n    createSVGRefElementsMarkup: function() {\n      var _this = this,\n          markup = ['background', 'overlay'].map(function(prop) {\n            var fill = _this[prop + 'Color'];\n            if (fill && fill.toLive) {\n              var shouldTransform = _this[prop + 'Vpt'], vpt = _this.viewportTransform,\n                  object = {\n                    width: _this.width / (shouldTransform ? vpt[0] : 1),\n                    height: _this.height / (shouldTransform ? vpt[3] : 1)\n                  };\n              return fill.toSVG(\n                object,\n                { additionalTransform: shouldTransform ? fabric.util.matrixToSVG(vpt) : '' }\n              );\n            }\n          });\n      return markup.join('');\n    },\n\n    /**\n     * Creates markup containing SVG font faces,\n     * font URLs for font faces must be collected by developers\n     * and are not extracted from the DOM by fabricjs\n     * @param {Array} objects Array of fabric objects\n     * @return {String}\n     */\n    createSVGFontFacesMarkup: function() {\n      var markup = '', fontList = { }, obj, fontFamily,\n          style, row, rowIndex, _char, charIndex, i, len,\n          fontPaths = fabric.fontPaths, objects = [];\n\n      this._objects.forEach(function add(object) {\n        objects.push(object);\n        if (object._objects) {\n          object._objects.forEach(add);\n        }\n      });\n\n      for (i = 0, len = objects.length; i < len; i++) {\n        obj = objects[i];\n        fontFamily = obj.fontFamily;\n        if (obj.type.indexOf('text') === -1 || fontList[fontFamily] || !fontPaths[fontFamily]) {\n          continue;\n        }\n        fontList[fontFamily] = true;\n        if (!obj.styles) {\n          continue;\n        }\n        style = obj.styles;\n        for (rowIndex in style) {\n          row = style[rowIndex];\n          for (charIndex in row) {\n            _char = row[charIndex];\n            fontFamily = _char.fontFamily;\n            if (!fontList[fontFamily] && fontPaths[fontFamily]) {\n              fontList[fontFamily] = true;\n            }\n          }\n        }\n      }\n\n      for (var j in fontList) {\n        markup += [\n          '\\t\\t@font-face {\\n',\n          '\\t\\t\\tfont-family: \\'', j, '\\';\\n',\n          '\\t\\t\\tsrc: url(\\'', fontPaths[j], '\\');\\n',\n          '\\t\\t}\\n'\n        ].join('');\n      }\n\n      if (markup) {\n        markup = [\n          '\\t<style type=\"text/css\">',\n          '<![CDATA[\\n',\n          markup,\n          ']]>',\n          '</style>\\n'\n        ].join('');\n      }\n\n      return markup;\n    },\n\n    /**\n     * @private\n     */\n    _setSVGObjects: function(markup, reviver) {\n      var instance, i, len, objects = this._objects;\n      for (i = 0, len = objects.length; i < len; i++) {\n        instance = objects[i];\n        if (instance.excludeFromExport) {\n          continue;\n        }\n        this._setSVGObject(markup, instance, reviver);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setSVGObject: function(markup, instance, reviver) {\n      markup.push(instance.toSVG(reviver));\n    },\n\n    /**\n     * @private\n     */\n    _setSVGBgOverlayImage: function(markup, property, reviver) {\n      if (this[property] && !this[property].excludeFromExport && this[property].toSVG) {\n        markup.push(this[property].toSVG(reviver));\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setSVGBgOverlayColor: function(markup, property) {\n      var filler = this[property + 'Color'], vpt = this.viewportTransform, finalWidth = this.width,\n          finalHeight = this.height;\n      if (!filler) {\n        return;\n      }\n      if (filler.toLive) {\n        var repeat = filler.repeat, iVpt = fabric.util.invertTransform(vpt), shouldInvert = this[property + 'Vpt'],\n            additionalTransform = shouldInvert ? fabric.util.matrixToSVG(iVpt) : '';\n        markup.push(\n          '<rect transform=\"' + additionalTransform + ' translate(', finalWidth / 2, ',', finalHeight / 2, ')\"',\n          ' x=\"', filler.offsetX - finalWidth / 2,\n          '\" y=\"', filler.offsetY - finalHeight / 2, '\" ',\n          'width=\"',\n          (repeat === 'repeat-y' || repeat === 'no-repeat'\n            ? filler.source.width\n            : finalWidth ),\n          '\" height=\"',\n          (repeat === 'repeat-x' || repeat === 'no-repeat'\n            ? filler.source.height\n            : finalHeight),\n          '\" fill=\"url(#SVGID_' + filler.id + ')\"',\n          '></rect>\\n'\n        );\n      }\n      else {\n        markup.push(\n          '<rect x=\"0\" y=\"0\" width=\"100%\" height=\"100%\" ',\n          'fill=\"', filler, '\"',\n          '></rect>\\n'\n        );\n      }\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Moves an object or the objects of a multiple selection\n     * to the bottom of the stack of drawn objects\n     * @param {fabric.Object} object Object to send to back\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    sendToBack: function (object) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, objs;\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = objs.length; i--;) {\n          obj = objs[i];\n          removeFromArray(this._objects, obj);\n          this._objects.unshift(obj);\n        }\n      }\n      else {\n        removeFromArray(this._objects, object);\n        this._objects.unshift(object);\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Moves an object or the objects of a multiple selection\n     * to the top of the stack of drawn objects\n     * @param {fabric.Object} object Object to send\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    bringToFront: function (object) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, objs;\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = 0; i < objs.length; i++) {\n          obj = objs[i];\n          removeFromArray(this._objects, obj);\n          this._objects.push(obj);\n        }\n      }\n      else {\n        removeFromArray(this._objects, object);\n        this._objects.push(object);\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Moves an object or a selection down in stack of drawn objects\n     * An optional paramter, intersecting allowes to move the object in behind\n     * the first intersecting object. Where intersection is calculated with\n     * bounding box. If no intersection is found, there will not be change in the\n     * stack.\n     * @param {fabric.Object} object Object to send\n     * @param {Boolean} [intersecting] If `true`, send object behind next lower intersecting object\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    sendBackwards: function (object, intersecting) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, idx, newIdx, objs, objsMoved = 0;\n\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = 0; i < objs.length; i++) {\n          obj = objs[i];\n          idx = this._objects.indexOf(obj);\n          if (idx > 0 + objsMoved) {\n            newIdx = idx - 1;\n            removeFromArray(this._objects, obj);\n            this._objects.splice(newIdx, 0, obj);\n          }\n          objsMoved++;\n        }\n      }\n      else {\n        idx = this._objects.indexOf(object);\n        if (idx !== 0) {\n          // if object is not on the bottom of stack\n          newIdx = this._findNewLowerIndex(object, idx, intersecting);\n          removeFromArray(this._objects, object);\n          this._objects.splice(newIdx, 0, object);\n        }\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _findNewLowerIndex: function(object, idx, intersecting) {\n      var newIdx, i;\n\n      if (intersecting) {\n        newIdx = idx;\n\n        // traverse down the stack looking for the nearest intersecting object\n        for (i = idx - 1; i >= 0; --i) {\n\n          var isIntersecting = object.intersectsWithObject(this._objects[i]) ||\n                               object.isContainedWithinObject(this._objects[i]) ||\n                               this._objects[i].isContainedWithinObject(object);\n\n          if (isIntersecting) {\n            newIdx = i;\n            break;\n          }\n        }\n      }\n      else {\n        newIdx = idx - 1;\n      }\n\n      return newIdx;\n    },\n\n    /**\n     * Moves an object or a selection up in stack of drawn objects\n     * An optional paramter, intersecting allowes to move the object in front\n     * of the first intersecting object. Where intersection is calculated with\n     * bounding box. If no intersection is found, there will not be change in the\n     * stack.\n     * @param {fabric.Object} object Object to send\n     * @param {Boolean} [intersecting] If `true`, send object in front of next upper intersecting object\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    bringForward: function (object, intersecting) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, idx, newIdx, objs, objsMoved = 0;\n\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = objs.length; i--;) {\n          obj = objs[i];\n          idx = this._objects.indexOf(obj);\n          if (idx < this._objects.length - 1 - objsMoved) {\n            newIdx = idx + 1;\n            removeFromArray(this._objects, obj);\n            this._objects.splice(newIdx, 0, obj);\n          }\n          objsMoved++;\n        }\n      }\n      else {\n        idx = this._objects.indexOf(object);\n        if (idx !== this._objects.length - 1) {\n          // if object is not on top of stack (last item in an array)\n          newIdx = this._findNewUpperIndex(object, idx, intersecting);\n          removeFromArray(this._objects, object);\n          this._objects.splice(newIdx, 0, object);\n        }\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _findNewUpperIndex: function(object, idx, intersecting) {\n      var newIdx, i, len;\n\n      if (intersecting) {\n        newIdx = idx;\n\n        // traverse up the stack looking for the nearest intersecting object\n        for (i = idx + 1, len = this._objects.length; i < len; ++i) {\n\n          var isIntersecting = object.intersectsWithObject(this._objects[i]) ||\n                               object.isContainedWithinObject(this._objects[i]) ||\n                               this._objects[i].isContainedWithinObject(object);\n\n          if (isIntersecting) {\n            newIdx = i;\n            break;\n          }\n        }\n      }\n      else {\n        newIdx = idx + 1;\n      }\n\n      return newIdx;\n    },\n\n    /**\n     * Moves an object to specified level in stack of drawn objects\n     * @param {fabric.Object} object Object to send\n     * @param {Number} index Position to move to\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    moveTo: function (object, index) {\n      removeFromArray(this._objects, object);\n      this._objects.splice(index, 0, object);\n      return this.renderOnAddRemove && this.requestRenderAll();\n    },\n\n    /**\n     * Clears a canvas element and dispose objects\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    dispose: function () {\n      // cancel eventually ongoing renders\n      if (this.isRendering) {\n        fabric.util.cancelAnimFrame(this.isRendering);\n        this.isRendering = 0;\n      }\n      this.forEachObject(function(object) {\n        object.dispose && object.dispose();\n      });\n      this._objects = [];\n      if (this.backgroundImage && this.backgroundImage.dispose) {\n        this.backgroundImage.dispose();\n      }\n      this.backgroundImage = null;\n      if (this.overlayImage && this.overlayImage.dispose) {\n        this.overlayImage.dispose();\n      }\n      this.overlayImage = null;\n      this._iTextInstances = null;\n      this.contextContainer = null;\n      fabric.util.cleanUpJsdomNode(this.lowerCanvasEl);\n      this.lowerCanvasEl = undefined;\n      return this;\n    },\n\n    /**\n     * Returns a string representation of an instance\n     * @return {String} string representation of an instance\n     */\n    toString: function () {\n      return '#<fabric.Canvas (' + this.complexity() + '): ' +\n               '{ objects: ' + this._objects.length + ' }>';\n    }\n  });\n\n  extend(fabric.StaticCanvas.prototype, fabric.Observable);\n  extend(fabric.StaticCanvas.prototype, fabric.Collection);\n  extend(fabric.StaticCanvas.prototype, fabric.DataURLExporter);\n\n  extend(fabric.StaticCanvas, /** @lends fabric.StaticCanvas */ {\n\n    /**\n     * @static\n     * @type String\n     * @default\n     */\n    EMPTY_JSON: '{\"objects\": [], \"background\": \"white\"}',\n\n    /**\n     * Provides a way to check support of some of the canvas methods\n     * (either those of HTMLCanvasElement itself, or rendering context)\n     *\n     * @param {String} methodName Method to check support for;\n     *                            Could be one of \"setLineDash\"\n     * @return {Boolean | null} `true` if method is supported (or at least exists),\n     *                          `null` if canvas element or context can not be initialized\n     */\n    supports: function (methodName) {\n      var el = createCanvasElement();\n\n      if (!el || !el.getContext) {\n        return null;\n      }\n\n      var ctx = el.getContext('2d');\n      if (!ctx) {\n        return null;\n      }\n\n      switch (methodName) {\n\n        case 'setLineDash':\n          return typeof ctx.setLineDash !== 'undefined';\n\n        default:\n          return null;\n      }\n    }\n  });\n\n  /**\n   * Returns JSON representation of canvas\n   * @function\n   * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n   * @return {String} JSON string\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#serialization}\n   * @see {@link http://jsfiddle.net/fabricjs/pec86/|jsFiddle demo}\n   * @example <caption>JSON without additional properties</caption>\n   * var json = canvas.toJSON();\n   * @example <caption>JSON with additional properties included</caption>\n   * var json = canvas.toJSON(['lockMovementX', 'lockMovementY', 'lockRotation', 'lockScalingX', 'lockScalingY', 'lockUniScaling']);\n   * @example <caption>JSON without default values</caption>\n   * canvas.includeDefaultValues = false;\n   * var json = canvas.toJSON();\n   */\n  fabric.StaticCanvas.prototype.toJSON = fabric.StaticCanvas.prototype.toObject;\n\n  if (fabric.isLikelyNode) {\n    fabric.StaticCanvas.prototype.createPNGStream = function() {\n      var impl = getNodeCanvas(this.lowerCanvasEl);\n      return impl && impl.createPNGStream();\n    };\n    fabric.StaticCanvas.prototype.createJPEGStream = function(opts) {\n      var impl = getNodeCanvas(this.lowerCanvasEl);\n      return impl && impl.createJPEGStream(opts);\n    };\n  }\n})();\n\n\n/**\n * BaseBrush class\n * @class fabric.BaseBrush\n * @see {@link http://fabricjs.com/freedrawing|Freedrawing demo}\n */\nfabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype */ {\n\n  /**\n   * Color of a brush\n   * @type String\n   * @default\n   */\n  color: 'rgb(0, 0, 0)',\n\n  /**\n   * Width of a brush, has to be a Number, no string literals\n   * @type Number\n   * @default\n   */\n  width: 1,\n\n  /**\n   * Shadow object representing shadow of this shape.\n   * <b>Backwards incompatibility note:</b> This property replaces \"shadowColor\" (String), \"shadowOffsetX\" (Number),\n   * \"shadowOffsetY\" (Number) and \"shadowBlur\" (Number) since v1.2.12\n   * @type fabric.Shadow\n   * @default\n   */\n  shadow: null,\n\n  /**\n   * Line endings style of a brush (one of \"butt\", \"round\", \"square\")\n   * @type String\n   * @default\n   */\n  strokeLineCap: 'round',\n\n  /**\n   * Corner style of a brush (one of \"bevel\", \"round\", \"miter\")\n   * @type String\n   * @default\n   */\n  strokeLineJoin: 'round',\n\n  /**\n   * Maximum miter length (used for strokeLineJoin = \"miter\") of a brush's\n   * @type Number\n   * @default\n   */\n  strokeMiterLimit:         10,\n\n  /**\n   * Stroke Dash Array.\n   * @type Array\n   * @default\n   */\n  strokeDashArray: null,\n\n  /**\n   * Sets shadow of an object\n   * @param {Object|String} [options] Options object or string (e.g. \"2px 2px 10px rgba(0,0,0,0.2)\")\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  setShadow: function(options) {\n    this.shadow = new fabric.Shadow(options);\n    return this;\n  },\n\n  /**\n   * Sets brush styles\n   * @private\n   */\n  _setBrushStyles: function() {\n    var ctx = this.canvas.contextTop;\n    ctx.strokeStyle = this.color;\n    ctx.lineWidth = this.width;\n    ctx.lineCap = this.strokeLineCap;\n    ctx.miterLimit = this.strokeMiterLimit;\n    ctx.lineJoin = this.strokeLineJoin;\n    if (fabric.StaticCanvas.supports('setLineDash')) {\n      ctx.setLineDash(this.strokeDashArray || []);\n    }\n  },\n\n  /**\n   * Sets the transformation on given context\n   * @param {RenderingContext2d} ctx context to render on\n   * @private\n   */\n  _saveAndTransform: function(ctx) {\n    var v = this.canvas.viewportTransform;\n    ctx.save();\n    ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n  },\n\n  /**\n   * Sets brush shadow styles\n   * @private\n   */\n  _setShadow: function() {\n    if (!this.shadow) {\n      return;\n    }\n\n    var canvas = this.canvas,\n        shadow = this.shadow,\n        ctx = canvas.contextTop,\n        zoom = canvas.getZoom();\n    if (canvas && canvas._isRetinaScaling()) {\n      zoom *= fabric.devicePixelRatio;\n    }\n\n    ctx.shadowColor = shadow.color;\n    ctx.shadowBlur = shadow.blur * zoom;\n    ctx.shadowOffsetX = shadow.offsetX * zoom;\n    ctx.shadowOffsetY = shadow.offsetY * zoom;\n  },\n\n  needsFullRender: function() {\n    var color = new fabric.Color(this.color);\n    return color.getAlpha() < 1 || !!this.shadow;\n  },\n\n  /**\n   * Removes brush shadow styles\n   * @private\n   */\n  _resetShadow: function() {\n    var ctx = this.canvas.contextTop;\n\n    ctx.shadowColor = '';\n    ctx.shadowBlur = ctx.shadowOffsetX = ctx.shadowOffsetY = 0;\n  }\n});\n\n\n(function() {\n  /**\n   * PencilBrush class\n   * @class fabric.PencilBrush\n   * @extends fabric.BaseBrush\n   */\n  fabric.PencilBrush = fabric.util.createClass(fabric.BaseBrush, /** @lends fabric.PencilBrush.prototype */ {\n\n    /**\n     * Discard points that are less than `decimate` pixel distant from each other\n     * @type Number\n     * @default 0.4\n     */\n    decimate: 0.4,\n\n    /**\n     * Constructor\n     * @param {fabric.Canvas} canvas\n     * @return {fabric.PencilBrush} Instance of a pencil brush\n     */\n    initialize: function(canvas) {\n      this.canvas = canvas;\n      this._points = [];\n    },\n\n    /**\n     * Invoked inside on mouse down and mouse move\n     * @param {Object} pointer\n     */\n    _drawSegment: function (ctx, p1, p2) {\n      var midPoint = p1.midPointFrom(p2);\n      ctx.quadraticCurveTo(p1.x, p1.y, midPoint.x, midPoint.y);\n      return midPoint;\n    },\n\n    /**\n     * Inovoked on mouse down\n     * @param {Object} pointer\n     */\n    onMouseDown: function(pointer, options) {\n      if (!this.canvas._isMainEvent(options.e)) {\n        return;\n      }\n      this._prepareForDrawing(pointer);\n      // capture coordinates immediately\n      // this allows to draw dots (when movement never occurs)\n      this._captureDrawingPath(pointer);\n      this._render();\n    },\n\n    /**\n     * Inovoked on mouse move\n     * @param {Object} pointer\n     */\n    onMouseMove: function(pointer, options) {\n      if (!this.canvas._isMainEvent(options.e)) {\n        return;\n      }\n      if (this._captureDrawingPath(pointer) && this._points.length > 1) {\n        if (this.needsFullRender()) {\n          // redraw curve\n          // clear top canvas\n          this.canvas.clearContext(this.canvas.contextTop);\n          this._render();\n        }\n        else {\n          var points = this._points, length = points.length, ctx = this.canvas.contextTop;\n          // draw the curve update\n          this._saveAndTransform(ctx);\n          if (this.oldEnd) {\n            ctx.beginPath();\n            ctx.moveTo(this.oldEnd.x, this.oldEnd.y);\n          }\n          this.oldEnd = this._drawSegment(ctx, points[length - 2], points[length - 1], true);\n          ctx.stroke();\n          ctx.restore();\n        }\n      }\n    },\n\n    /**\n     * Invoked on mouse up\n     */\n    onMouseUp: function(options) {\n      if (!this.canvas._isMainEvent(options.e)) {\n        return true;\n      }\n      this.oldEnd = undefined;\n      this._finalizeAndAddPath();\n      return false;\n    },\n\n    /**\n     * @private\n     * @param {Object} pointer Actual mouse position related to the canvas.\n     */\n    _prepareForDrawing: function(pointer) {\n\n      var p = new fabric.Point(pointer.x, pointer.y);\n\n      this._reset();\n      this._addPoint(p);\n      this.canvas.contextTop.moveTo(p.x, p.y);\n    },\n\n    /**\n     * @private\n     * @param {fabric.Point} point Point to be added to points array\n     */\n    _addPoint: function(point) {\n      if (this._points.length > 1 && point.eq(this._points[this._points.length - 1])) {\n        return false;\n      }\n      this._points.push(point);\n      return true;\n    },\n\n    /**\n     * Clear points array and set contextTop canvas style.\n     * @private\n     */\n    _reset: function() {\n      this._points = [];\n      this._setBrushStyles();\n      this._setShadow();\n    },\n\n    /**\n     * @private\n     * @param {Object} pointer Actual mouse position related to the canvas.\n     */\n    _captureDrawingPath: function(pointer) {\n      var pointerPoint = new fabric.Point(pointer.x, pointer.y);\n      return this._addPoint(pointerPoint);\n    },\n\n    /**\n     * Draw a smooth path on the topCanvas using quadraticCurveTo\n     * @private\n     */\n    _render: function() {\n      var ctx  = this.canvas.contextTop, i, len,\n          p1 = this._points[0],\n          p2 = this._points[1];\n\n      this._saveAndTransform(ctx);\n      ctx.beginPath();\n      //if we only have 2 points in the path and they are the same\n      //it means that the user only clicked the canvas without moving the mouse\n      //then we should be drawing a dot. A path isn't drawn between two identical dots\n      //that's why we set them apart a bit\n      if (this._points.length === 2 && p1.x === p2.x && p1.y === p2.y) {\n        var width = this.width / 1000;\n        p1 = new fabric.Point(p1.x, p1.y);\n        p2 = new fabric.Point(p2.x, p2.y);\n        p1.x -= width;\n        p2.x += width;\n      }\n      ctx.moveTo(p1.x, p1.y);\n\n      for (i = 1, len = this._points.length; i < len; i++) {\n        // we pick the point between pi + 1 & pi + 2 as the\n        // end point and p1 as our control point.\n        this._drawSegment(ctx, p1, p2);\n        p1 = this._points[i];\n        p2 = this._points[i + 1];\n      }\n      // Draw last line as a straight line while\n      // we wait for the next point to be able to calculate\n      // the bezier control point\n      ctx.lineTo(p1.x, p1.y);\n      ctx.stroke();\n      ctx.restore();\n    },\n\n    /**\n     * Converts points to SVG path\n     * @param {Array} points Array of points\n     * @return {String} SVG path\n     */\n    convertPointsToSVGPath: function(points) {\n      var path = [], i, width = this.width / 1000,\n          p1 = new fabric.Point(points[0].x, points[0].y),\n          p2 = new fabric.Point(points[1].x, points[1].y),\n          len = points.length, multSignX = 1, multSignY = 0, manyPoints = len > 2;\n\n      if (manyPoints) {\n        multSignX = points[2].x < p2.x ? -1 : points[2].x === p2.x ? 0 : 1;\n        multSignY = points[2].y < p2.y ? -1 : points[2].y === p2.y ? 0 : 1;\n      }\n      path.push('M ', p1.x - multSignX * width, ' ', p1.y - multSignY * width, ' ');\n      for (i = 1; i < len; i++) {\n        if (!p1.eq(p2)) {\n          var midPoint = p1.midPointFrom(p2);\n          // p1 is our bezier control point\n          // midpoint is our endpoint\n          // start point is p(i-1) value.\n          path.push('Q ', p1.x, ' ', p1.y, ' ', midPoint.x, ' ', midPoint.y, ' ');\n        }\n        p1 = points[i];\n        if ((i + 1) < points.length) {\n          p2 = points[i + 1];\n        }\n      }\n      if (manyPoints) {\n        multSignX = p1.x > points[i - 2].x ? 1 : p1.x === points[i - 2].x ? 0 : -1;\n        multSignY = p1.y > points[i - 2].y ? 1 : p1.y === points[i - 2].y ? 0 : -1;\n      }\n      path.push('L ', p1.x + multSignX * width, ' ', p1.y + multSignY * width);\n      return path;\n    },\n\n    /**\n     * Creates fabric.Path object to add on canvas\n     * @param {String} pathData Path data\n     * @return {fabric.Path} Path to add on canvas\n     */\n    createPath: function(pathData) {\n      var path = new fabric.Path(pathData, {\n        fill: null,\n        stroke: this.color,\n        strokeWidth: this.width,\n        strokeLineCap: this.strokeLineCap,\n        strokeMiterLimit: this.strokeMiterLimit,\n        strokeLineJoin: this.strokeLineJoin,\n        strokeDashArray: this.strokeDashArray,\n      });\n      if (this.shadow) {\n        this.shadow.affectStroke = true;\n        path.setShadow(this.shadow);\n      }\n\n      return path;\n    },\n\n    /**\n     * Decimate poins array with the decimate value\n     */\n    decimatePoints: function(points, distance) {\n      if (points.length <= 2) {\n        return points;\n      }\n      var zoom = this.canvas.getZoom(), adjustedDistance = Math.pow(distance / zoom, 2),\n          i, l = points.length - 1, lastPoint = points[0], newPoints = [lastPoint],\n          cDistance;\n      for (i = 1; i < l; i++) {\n        cDistance = Math.pow(lastPoint.x - points[i].x, 2) + Math.pow(lastPoint.y - points[i].y, 2);\n        if (cDistance >= adjustedDistance) {\n          lastPoint = points[i];\n          newPoints.push(lastPoint);\n        }\n      }\n      if (newPoints.length === 1) {\n        newPoints.push(new fabric.Point(newPoints[0].x, newPoints[0].y));\n      }\n      return newPoints;\n    },\n\n    /**\n     * On mouseup after drawing the path on contextTop canvas\n     * we use the points captured to create an new fabric path object\n     * and add it to the fabric canvas.\n     */\n    _finalizeAndAddPath: function() {\n      var ctx = this.canvas.contextTop;\n      ctx.closePath();\n      if (this.decimate) {\n        this._points = this.decimatePoints(this._points, this.decimate);\n      }\n      var pathData = this.convertPointsToSVGPath(this._points).join('');\n      if (pathData === 'M 0 0 Q 0 0 0 0 L 0 0') {\n        // do not create 0 width/height paths, as they are\n        // rendered inconsistently across browsers\n        // Firefox 4, for example, renders a dot,\n        // whereas Chrome 10 renders nothing\n        this.canvas.requestRenderAll();\n        return;\n      }\n\n      var path = this.createPath(pathData);\n      this.canvas.clearContext(this.canvas.contextTop);\n      this.canvas.add(path);\n      this.canvas.requestRenderAll();\n      path.setCoords();\n      this._resetShadow();\n\n\n      // fire event 'path' created\n      this.canvas.fire('path:created', { path: path });\n    }\n  });\n})();\n\n\n/**\n * CircleBrush class\n * @class fabric.CircleBrush\n */\nfabric.CircleBrush = fabric.util.createClass(fabric.BaseBrush, /** @lends fabric.CircleBrush.prototype */ {\n\n  /**\n   * Width of a brush\n   * @type Number\n   * @default\n   */\n  width: 10,\n\n  /**\n   * Constructor\n   * @param {fabric.Canvas} canvas\n   * @return {fabric.CircleBrush} Instance of a circle brush\n   */\n  initialize: function(canvas) {\n    this.canvas = canvas;\n    this.points = [];\n  },\n\n  /**\n   * Invoked inside on mouse down and mouse move\n   * @param {Object} pointer\n   */\n  drawDot: function(pointer) {\n    var point = this.addPoint(pointer),\n        ctx = this.canvas.contextTop;\n    this._saveAndTransform(ctx);\n    this.dot(ctx, point);\n    ctx.restore();\n  },\n\n  dot: function(ctx, point) {\n    ctx.fillStyle = point.fill;\n    ctx.beginPath();\n    ctx.arc(point.x, point.y, point.radius, 0, Math.PI * 2, false);\n    ctx.closePath();\n    ctx.fill();\n  },\n\n  /**\n   * Invoked on mouse down\n   */\n  onMouseDown: function(pointer) {\n    this.points.length = 0;\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._setShadow();\n    this.drawDot(pointer);\n  },\n\n  /**\n   * Render the full state of the brush\n   * @private\n   */\n  _render: function() {\n    var ctx  = this.canvas.contextTop, i, len,\n        points = this.points;\n    this._saveAndTransform(ctx);\n    for (i = 0, len = points.length; i < len; i++) {\n      this.dot(ctx, points[i]);\n    }\n    ctx.restore();\n  },\n\n  /**\n   * Invoked on mouse move\n   * @param {Object} pointer\n   */\n  onMouseMove: function(pointer) {\n    if (this.needsFullRender()) {\n      this.canvas.clearContext(this.canvas.contextTop);\n      this.addPoint(pointer);\n      this._render();\n    }\n    else {\n      this.drawDot(pointer);\n    }\n  },\n\n  /**\n   * Invoked on mouse up\n   */\n  onMouseUp: function() {\n    var originalRenderOnAddRemove = this.canvas.renderOnAddRemove, i, len;\n    this.canvas.renderOnAddRemove = false;\n\n    var circles = [];\n\n    for (i = 0, len = this.points.length; i < len; i++) {\n      var point = this.points[i],\n          circle = new fabric.Circle({\n            radius: point.radius,\n            left: point.x,\n            top: point.y,\n            originX: 'center',\n            originY: 'center',\n            fill: point.fill\n          });\n\n      this.shadow && circle.setShadow(this.shadow);\n\n      circles.push(circle);\n    }\n    var group = new fabric.Group(circles);\n    group.canvas = this.canvas;\n\n    this.canvas.add(group);\n    this.canvas.fire('path:created', { path: group });\n\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._resetShadow();\n    this.canvas.renderOnAddRemove = originalRenderOnAddRemove;\n    this.canvas.requestRenderAll();\n  },\n\n  /**\n   * @param {Object} pointer\n   * @return {fabric.Point} Just added pointer point\n   */\n  addPoint: function(pointer) {\n    var pointerPoint = new fabric.Point(pointer.x, pointer.y),\n\n        circleRadius = fabric.util.getRandomInt(\n          Math.max(0, this.width - 20), this.width + 20) / 2,\n\n        circleColor = new fabric.Color(this.color)\n          .setAlpha(fabric.util.getRandomInt(0, 100) / 100)\n          .toRgba();\n\n    pointerPoint.radius = circleRadius;\n    pointerPoint.fill = circleColor;\n\n    this.points.push(pointerPoint);\n\n    return pointerPoint;\n  }\n});\n\n\n/**\n * SprayBrush class\n * @class fabric.SprayBrush\n */\nfabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric.SprayBrush.prototype */ {\n\n  /**\n   * Width of a spray\n   * @type Number\n   * @default\n   */\n  width:              10,\n\n  /**\n   * Density of a spray (number of dots per chunk)\n   * @type Number\n   * @default\n   */\n  density:            20,\n\n  /**\n   * Width of spray dots\n   * @type Number\n   * @default\n   */\n  dotWidth:           1,\n\n  /**\n   * Width variance of spray dots\n   * @type Number\n   * @default\n   */\n  dotWidthVariance:   1,\n\n  /**\n   * Whether opacity of a dot should be random\n   * @type Boolean\n   * @default\n   */\n  randomOpacity:        false,\n\n  /**\n   * Whether overlapping dots (rectangles) should be removed (for performance reasons)\n   * @type Boolean\n   * @default\n   */\n  optimizeOverlapping:  true,\n\n  /**\n   * Constructor\n   * @param {fabric.Canvas} canvas\n   * @return {fabric.SprayBrush} Instance of a spray brush\n   */\n  initialize: function(canvas) {\n    this.canvas = canvas;\n    this.sprayChunks = [];\n  },\n\n  /**\n   * Invoked on mouse down\n   * @param {Object} pointer\n   */\n  onMouseDown: function(pointer) {\n    this.sprayChunks.length = 0;\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._setShadow();\n\n    this.addSprayChunk(pointer);\n    this.render(this.sprayChunkPoints);\n  },\n\n  /**\n   * Invoked on mouse move\n   * @param {Object} pointer\n   */\n  onMouseMove: function(pointer) {\n    this.addSprayChunk(pointer);\n    this.render(this.sprayChunkPoints);\n  },\n\n  /**\n   * Invoked on mouse up\n   */\n  onMouseUp: function() {\n    var originalRenderOnAddRemove = this.canvas.renderOnAddRemove;\n    this.canvas.renderOnAddRemove = false;\n\n    var rects = [];\n\n    for (var i = 0, ilen = this.sprayChunks.length; i < ilen; i++) {\n      var sprayChunk = this.sprayChunks[i];\n\n      for (var j = 0, jlen = sprayChunk.length; j < jlen; j++) {\n\n        var rect = new fabric.Rect({\n          width: sprayChunk[j].width,\n          height: sprayChunk[j].width,\n          left: sprayChunk[j].x + 1,\n          top: sprayChunk[j].y + 1,\n          originX: 'center',\n          originY: 'center',\n          fill: this.color\n        });\n        rects.push(rect);\n      }\n    }\n\n    if (this.optimizeOverlapping) {\n      rects = this._getOptimizedRects(rects);\n    }\n\n    var group = new fabric.Group(rects);\n    this.shadow && group.setShadow(this.shadow);\n    this.canvas.add(group);\n    this.canvas.fire('path:created', { path: group });\n\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._resetShadow();\n    this.canvas.renderOnAddRemove = originalRenderOnAddRemove;\n    this.canvas.requestRenderAll();\n  },\n\n  /**\n   * @private\n   * @param {Array} rects\n   */\n  _getOptimizedRects: function(rects) {\n\n    // avoid creating duplicate rects at the same coordinates\n    var uniqueRects = { }, key, i, len;\n\n    for (i = 0, len = rects.length; i < len; i++) {\n      key = rects[i].left + '' + rects[i].top;\n      if (!uniqueRects[key]) {\n        uniqueRects[key] = rects[i];\n      }\n    }\n    var uniqueRectsArray = [];\n    for (key in uniqueRects) {\n      uniqueRectsArray.push(uniqueRects[key]);\n    }\n\n    return uniqueRectsArray;\n  },\n\n  /**\n   * Render new chunk of spray brush\n   */\n  render: function(sprayChunk) {\n    var ctx = this.canvas.contextTop, i, len;\n    ctx.fillStyle = this.color;\n\n    this._saveAndTransform(ctx);\n\n    for (i = 0, len = sprayChunk.length; i < len; i++) {\n      var point = sprayChunk[i];\n      if (typeof point.opacity !== 'undefined') {\n        ctx.globalAlpha = point.opacity;\n      }\n      ctx.fillRect(point.x, point.y, point.width, point.width);\n    }\n    ctx.restore();\n  },\n\n  /**\n   * Render all spray chunks\n   */\n  _render: function() {\n    var ctx = this.canvas.contextTop, i, ilen;\n    ctx.fillStyle = this.color;\n\n    this._saveAndTransform(ctx);\n\n    for (i = 0, ilen = this.sprayChunks.length; i < ilen; i++) {\n      this.render(this.sprayChunks[i]);\n    }\n    ctx.restore();\n  },\n\n  /**\n   * @param {Object} pointer\n   */\n  addSprayChunk: function(pointer) {\n    this.sprayChunkPoints = [];\n\n    var x, y, width, radius = this.width / 2, i;\n\n    for (i = 0; i < this.density; i++) {\n\n      x = fabric.util.getRandomInt(pointer.x - radius, pointer.x + radius);\n      y = fabric.util.getRandomInt(pointer.y - radius, pointer.y + radius);\n\n      if (this.dotWidthVariance) {\n        width = fabric.util.getRandomInt(\n          // bottom clamp width to 1\n          Math.max(1, this.dotWidth - this.dotWidthVariance),\n          this.dotWidth + this.dotWidthVariance);\n      }\n      else {\n        width = this.dotWidth;\n      }\n\n      var point = new fabric.Point(x, y);\n      point.width = width;\n\n      if (this.randomOpacity) {\n        point.opacity = fabric.util.getRandomInt(0, 100) / 100;\n      }\n\n      this.sprayChunkPoints.push(point);\n    }\n\n    this.sprayChunks.push(this.sprayChunkPoints);\n  }\n});\n\n\n/**\n * PatternBrush class\n * @class fabric.PatternBrush\n * @extends fabric.BaseBrush\n */\nfabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fabric.PatternBrush.prototype */ {\n\n  getPatternSrc: function() {\n\n    var dotWidth = 20,\n        dotDistance = 5,\n        patternCanvas = fabric.util.createCanvasElement(),\n        patternCtx = patternCanvas.getContext('2d');\n\n    patternCanvas.width = patternCanvas.height = dotWidth + dotDistance;\n\n    patternCtx.fillStyle = this.color;\n    patternCtx.beginPath();\n    patternCtx.arc(dotWidth / 2, dotWidth / 2, dotWidth / 2, 0, Math.PI * 2, false);\n    patternCtx.closePath();\n    patternCtx.fill();\n\n    return patternCanvas;\n  },\n\n  getPatternSrcFunction: function() {\n    return String(this.getPatternSrc).replace('this.color', '\"' + this.color + '\"');\n  },\n\n  /**\n   * Creates \"pattern\" instance property\n   */\n  getPattern: function() {\n    return this.canvas.contextTop.createPattern(this.source || this.getPatternSrc(), 'repeat');\n  },\n\n  /**\n   * Sets brush styles\n   */\n  _setBrushStyles: function() {\n    this.callSuper('_setBrushStyles');\n    this.canvas.contextTop.strokeStyle = this.getPattern();\n  },\n\n  /**\n   * Creates path\n   */\n  createPath: function(pathData) {\n    var path = this.callSuper('createPath', pathData),\n        topLeft = path._getLeftTopCoords().scalarAdd(path.strokeWidth / 2);\n\n    path.stroke = new fabric.Pattern({\n      source: this.source || this.getPatternSrcFunction(),\n      offsetX: -topLeft.x,\n      offsetY: -topLeft.y\n    });\n    return path;\n  }\n});\n\n\n(function() {\n\n  var getPointer = fabric.util.getPointer,\n      degreesToRadians = fabric.util.degreesToRadians,\n      radiansToDegrees = fabric.util.radiansToDegrees,\n      atan2 = Math.atan2,\n      abs = Math.abs,\n      supportLineDash = fabric.StaticCanvas.supports('setLineDash'),\n\n      STROKE_OFFSET = 0.5;\n\n  /**\n   * Canvas class\n   * @class fabric.Canvas\n   * @extends fabric.StaticCanvas\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#canvas}\n   * @see {@link fabric.Canvas#initialize} for constructor definition\n   *\n   * @fires object:modified at the end of a transform or any change when statefull is true\n   * @fires object:rotated at the end of a rotation transform\n   * @fires object:scaled at the end of a scale transform\n   * @fires object:moved at the end of translation transform\n   * @fires object:skewed at the end of a skew transform\n   * @fires object:rotating while an object is being rotated from the control\n   * @fires object:scaling while an object is being scaled by controls\n   * @fires object:moving while an object is being dragged\n   * @fires object:skewing while an object is being skewed from the controls\n   * @fires object:selected this event is deprecated. use selection:created\n   *\n   * @fires before:transform before a transform is is started\n   * @fires before:selection:cleared\n   * @fires selection:cleared\n   * @fires selection:updated\n   * @fires selection:created\n   *\n   * @fires path:created after a drawing operation ends and the path is added\n   * @fires mouse:down\n   * @fires mouse:move\n   * @fires mouse:up\n   * @fires mouse:down:before  on mouse down, before the inner fabric logic runs\n   * @fires mouse:move:before on mouse move, before the inner fabric logic runs\n   * @fires mouse:up:before on mouse up, before the inner fabric logic runs\n   * @fires mouse:over\n   * @fires mouse:out\n   * @fires mouse:dblclick whenever a native dbl click event fires on the canvas.\n   *\n   * @fires dragover\n   * @fires dragenter\n   * @fires dragleave\n   * @fires drop\n   * @fires after:render at the end of the render process, receives the context in the callback\n   * @fires before:render at start the render process, receives the context in the callback\n   *\n   */\n  fabric.Canvas = fabric.util.createClass(fabric.StaticCanvas, /** @lends fabric.Canvas.prototype */ {\n\n    /**\n     * Constructor\n     * @param {HTMLElement | String} el &lt;canvas> element to initialize instance on\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(el, options) {\n      options || (options = { });\n      this.renderAndResetBound = this.renderAndReset.bind(this);\n      this.requestRenderAllBound = this.requestRenderAll.bind(this);\n      this._initStatic(el, options);\n      this._initInteractive();\n      this._createCacheCanvas();\n    },\n\n    /**\n     * When true, objects can be transformed by one side (unproportionally)\n     * @type Boolean\n     * @default\n     */\n    uniScaleTransform:      false,\n\n    /**\n     * Indicates which key enable unproportional scaling\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled feature disabled.\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    uniScaleKey:           'shiftKey',\n\n    /**\n     * When true, objects use center point as the origin of scale transformation.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredScaling:        false,\n\n    /**\n     * When true, objects use center point as the origin of rotate transformation.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredRotation:       false,\n\n    /**\n     * Indicates which key enable centered Transform\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled feature disabled.\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    centeredKey:           'altKey',\n\n    /**\n     * Indicates which key enable alternate action on corner\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled feature disabled.\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    altActionKey:           'shiftKey',\n\n    /**\n     * Indicates that canvas is interactive. This property should not be changed.\n     * @type Boolean\n     * @default\n     */\n    interactive:            true,\n\n    /**\n     * Indicates whether group selection should be enabled\n     * @type Boolean\n     * @default\n     */\n    selection:              true,\n\n    /**\n     * Indicates which key or keys enable multiple click selection\n     * Pass value as a string or array of strings\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or empty or containing any other string that is not a modifier key\n     * feature is disabled.\n     * @since 1.6.2\n     * @type String|Array\n     * @default\n     */\n    selectionKey:           'shiftKey',\n\n    /**\n     * Indicates which key enable alternative selection\n     * in case of target overlapping with active object\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * For a series of reason that come from the general expectations on how\n     * things should work, this feature works only for preserveObjectStacking true.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled.\n     * @since 1.6.5\n     * @type null|String\n     * @default\n     */\n    altSelectionKey:           null,\n\n    /**\n     * Color of selection\n     * @type String\n     * @default\n     */\n    selectionColor:         'rgba(100, 100, 255, 0.3)', // blue\n\n    /**\n     * Default dash array pattern\n     * If not empty the selection border is dashed\n     * @type Array\n     */\n    selectionDashArray:     [],\n\n    /**\n     * Color of the border of selection (usually slightly darker than color of selection itself)\n     * @type String\n     * @default\n     */\n    selectionBorderColor:   'rgba(255, 255, 255, 0.3)',\n\n    /**\n     * Width of a line used in object/group selection\n     * @type Number\n     * @default\n     */\n    selectionLineWidth:     1,\n\n    /**\n     * Select only shapes that are fully contained in the dragged selection rectangle.\n     * @type Boolean\n     * @default\n     */\n    selectionFullyContained: false,\n\n    /**\n     * Default cursor value used when hovering over an object on canvas\n     * @type String\n     * @default\n     */\n    hoverCursor:            'move',\n\n    /**\n     * Default cursor value used when moving an object on canvas\n     * @type String\n     * @default\n     */\n    moveCursor:             'move',\n\n    /**\n     * Default cursor value used for the entire canvas\n     * @type String\n     * @default\n     */\n    defaultCursor:          'default',\n\n    /**\n     * Cursor value used during free drawing\n     * @type String\n     * @default\n     */\n    freeDrawingCursor:      'crosshair',\n\n    /**\n     * Cursor value used for rotation point\n     * @type String\n     * @default\n     */\n    rotationCursor:         'crosshair',\n\n    /**\n     * Cursor value used for disabled elements ( corners with disabled action )\n     * @type String\n     * @since 2.0.0\n     * @default\n     */\n    notAllowedCursor:         'not-allowed',\n\n    /**\n     * Default element class that's given to wrapper (div) element of canvas\n     * @type String\n     * @default\n     */\n    containerClass:         'canvas-container',\n\n    /**\n     * When true, object detection happens on per-pixel basis rather than on per-bounding-box\n     * @type Boolean\n     * @default\n     */\n    perPixelTargetFind:     false,\n\n    /**\n     * Number of pixels around target pixel to tolerate (consider active) during object detection\n     * @type Number\n     * @default\n     */\n    targetFindTolerance:    0,\n\n    /**\n     * When true, target detection is skipped when hovering over canvas. This can be used to improve performance.\n     * @type Boolean\n     * @default\n     */\n    skipTargetFind:         false,\n\n    /**\n     * When true, mouse events on canvas (mousedown/mousemove/mouseup) result in free drawing.\n     * After mousedown, mousemove creates a shape,\n     * and then mouseup finalizes it and adds an instance of `fabric.Path` onto canvas.\n     * @tutorial {@link http://fabricjs.com/fabric-intro-part-4#free_drawing}\n     * @type Boolean\n     * @default\n     */\n    isDrawingMode:          false,\n\n    /**\n     * Indicates whether objects should remain in current stack position when selected.\n     * When false objects are brought to top and rendered as part of the selection group\n     * @type Boolean\n     * @default\n     */\n    preserveObjectStacking: false,\n\n    /**\n     * Indicates the angle that an object will lock to while rotating.\n     * @type Number\n     * @since 1.6.7\n     * @default\n     */\n    snapAngle: 0,\n\n    /**\n     * Indicates the distance from the snapAngle the rotation will lock to the snapAngle.\n     * When `null`, the snapThreshold will default to the snapAngle.\n     * @type null|Number\n     * @since 1.6.7\n     * @default\n     */\n    snapThreshold: null,\n\n    /**\n     * Indicates if the right click on canvas can output the context menu or not\n     * @type Boolean\n     * @since 1.6.5\n     * @default\n     */\n    stopContextMenu: false,\n\n    /**\n     * Indicates if the canvas can fire right click events\n     * @type Boolean\n     * @since 1.6.5\n     * @default\n     */\n    fireRightClick: false,\n\n    /**\n     * Indicates if the canvas can fire middle click events\n     * @type Boolean\n     * @since 1.7.8\n     * @default\n     */\n    fireMiddleClick: false,\n\n    /**\n     * Keep track of the subTargets for Mouse Events\n     * @type fabric.Object[]\n     */\n    targets: [],\n\n    /**\n     * Keep track of the hovered target\n     * @type fabric.Object\n     * @private\n     */\n    _hoveredTarget: null,\n\n    /**\n     * hold the list of nested targets hovered\n     * @type fabric.Object[]\n     * @private\n     */\n    _hoveredTargets: [],\n\n    /**\n     * @private\n     */\n    _initInteractive: function() {\n      this._currentTransform = null;\n      this._groupSelector = null;\n      this._initWrapperElement();\n      this._createUpperCanvas();\n      this._initEventListeners();\n\n      this._initRetinaScaling();\n\n      this.freeDrawingBrush = fabric.PencilBrush && new fabric.PencilBrush(this);\n\n      this.calcOffset();\n    },\n\n    /**\n     * Divides objects in two groups, one to render immediately\n     * and one to render as activeGroup.\n     * @return {Array} objects to render immediately and pushes the other in the activeGroup.\n     */\n    _chooseObjectsToRender: function() {\n      var activeObjects = this.getActiveObjects(),\n          object, objsToRender, activeGroupObjects;\n\n      if (activeObjects.length > 0 && !this.preserveObjectStacking) {\n        objsToRender = [];\n        activeGroupObjects = [];\n        for (var i = 0, length = this._objects.length; i < length; i++) {\n          object = this._objects[i];\n          if (activeObjects.indexOf(object) === -1 ) {\n            objsToRender.push(object);\n          }\n          else {\n            activeGroupObjects.push(object);\n          }\n        }\n        if (activeObjects.length > 1) {\n          this._activeObject._objects = activeGroupObjects;\n        }\n        objsToRender.push.apply(objsToRender, activeGroupObjects);\n      }\n      else {\n        objsToRender = this._objects;\n      }\n      return objsToRender;\n    },\n\n    /**\n     * Renders both the top canvas and the secondary container canvas.\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderAll: function () {\n      if (this.contextTopDirty && !this._groupSelector && !this.isDrawingMode) {\n        this.clearContext(this.contextTop);\n        this.contextTopDirty = false;\n      }\n      if (this.hasLostContext) {\n        this.renderTopLayer(this.contextTop);\n      }\n      var canvasToDrawOn = this.contextContainer;\n      this.renderCanvas(canvasToDrawOn, this._chooseObjectsToRender());\n      return this;\n    },\n\n    renderTopLayer: function(ctx) {\n      ctx.save();\n      if (this.isDrawingMode && this._isCurrentlyDrawing) {\n        this.freeDrawingBrush && this.freeDrawingBrush._render();\n        this.contextTopDirty = true;\n      }\n      // we render the top context - last object\n      if (this.selection && this._groupSelector) {\n        this._drawSelection(ctx);\n        this.contextTopDirty = true;\n      }\n      ctx.restore();\n    },\n\n    /**\n     * Method to render only the top canvas.\n     * Also used to render the group selection box.\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    renderTop: function () {\n      var ctx = this.contextTop;\n      this.clearContext(ctx);\n      this.renderTopLayer(ctx);\n      this.fire('after:render');\n      return this;\n    },\n\n    /**\n     * Resets the current transform to its original values and chooses the type of resizing based on the event\n     * @private\n     */\n    _resetCurrentTransform: function() {\n      var t = this._currentTransform;\n\n      t.target.set({\n        scaleX: t.original.scaleX,\n        scaleY: t.original.scaleY,\n        skewX: t.original.skewX,\n        skewY: t.original.skewY,\n        left: t.original.left,\n        top: t.original.top\n      });\n\n      if (this._shouldCenterTransform(t.target)) {\n        if (t.originX !== 'center') {\n          if (t.originX === 'right') {\n            t.mouseXSign = -1;\n          }\n          else {\n            t.mouseXSign = 1;\n          }\n        }\n        if (t.originY !== 'center') {\n          if (t.originY === 'bottom') {\n            t.mouseYSign = -1;\n          }\n          else {\n            t.mouseYSign = 1;\n          }\n        }\n\n        t.originX = 'center';\n        t.originY = 'center';\n      }\n      else {\n        t.originX = t.original.originX;\n        t.originY = t.original.originY;\n      }\n    },\n\n    /**\n     * Checks if point is contained within an area of given object\n     * @param {Event} e Event object\n     * @param {fabric.Object} target Object to test against\n     * @param {Object} [point] x,y object of point coordinates we want to check.\n     * @return {Boolean} true if point is contained within an area of given object\n     */\n    containsPoint: function (e, target, point) {\n      var ignoreZoom = true,\n          pointer = point || this.getPointer(e, ignoreZoom),\n          xy;\n\n      if (target.group && target.group === this._activeObject && target.group.type === 'activeSelection') {\n        xy = this._normalizePointer(target.group, pointer);\n      }\n      else {\n        xy = { x: pointer.x, y: pointer.y };\n      }\n      // http://www.geog.ubc.ca/courses/klink/gis.notes/ncgia/u32.html\n      // http://idav.ucdavis.edu/~okreylos/TAship/Spring2000/PointInPolygon.html\n      return (target.containsPoint(xy) || target._findTargetCorner(pointer));\n    },\n\n    /**\n     * @private\n     */\n    _normalizePointer: function (object, pointer) {\n      var m = object.calcTransformMatrix(),\n          invertedM = fabric.util.invertTransform(m),\n          vptPointer = this.restorePointerVpt(pointer);\n      return fabric.util.transformPoint(vptPointer, invertedM);\n    },\n\n    /**\n     * Returns true if object is transparent at a certain location\n     * @param {fabric.Object} target Object to check\n     * @param {Number} x Left coordinate\n     * @param {Number} y Top coordinate\n     * @return {Boolean}\n     */\n    isTargetTransparent: function (target, x, y) {\n      // in case the target is the activeObject, we cannot execute this optimization\n      // because we need to draw controls too.\n      if (target.shouldCache() && target._cacheCanvas && target !== this._activeObject) {\n        var normalizedPointer = this._normalizePointer(target, {x: x, y: y}),\n            targetRelativeX = Math.max(target.cacheTranslationX + (normalizedPointer.x * target.zoomX), 0),\n            targetRelativeY = Math.max(target.cacheTranslationY + (normalizedPointer.y * target.zoomY), 0);\n\n        var isTransparent = fabric.util.isTransparent(\n          target._cacheContext, Math.round(targetRelativeX), Math.round(targetRelativeY), this.targetFindTolerance);\n\n        return isTransparent;\n      }\n\n      var ctx = this.contextCache,\n          originalColor = target.selectionBackgroundColor, v = this.viewportTransform;\n\n      target.selectionBackgroundColor = '';\n\n      this.clearContext(ctx);\n\n      ctx.save();\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      target.render(ctx);\n      ctx.restore();\n\n      target === this._activeObject && target._renderControls(ctx, {\n        hasBorders: false,\n        transparentCorners: false\n      }, {\n        hasBorders: false,\n      });\n\n      target.selectionBackgroundColor = originalColor;\n\n      var isTransparent = fabric.util.isTransparent(\n        ctx, x, y, this.targetFindTolerance);\n\n      return isTransparent;\n    },\n\n    /**\n     * takes an event and determins if selection key has been pressed\n     * @private\n     * @param {Event} e Event object\n     */\n    _isSelectionKeyPressed: function(e) {\n      var selectionKeyPressed = false;\n\n      if (Object.prototype.toString.call(this.selectionKey) === '[object Array]') {\n        selectionKeyPressed = !!this.selectionKey.find(function(key) { return e[key] === true; });\n      }\n      else {\n        selectionKeyPressed = e[this.selectionKey];\n      }\n\n      return selectionKeyPressed;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     */\n    _shouldClearSelection: function (e, target) {\n      var activeObjects = this.getActiveObjects(),\n          activeObject = this._activeObject;\n\n      return (\n        !target\n        ||\n        (target &&\n          activeObject &&\n          activeObjects.length > 1 &&\n          activeObjects.indexOf(target) === -1 &&\n          activeObject !== target &&\n          !this._isSelectionKeyPressed(e))\n        ||\n        (target && !target.evented)\n        ||\n        (target &&\n          !target.selectable &&\n          activeObject &&\n          activeObject !== target)\n      );\n    },\n\n    /**\n     * centeredScaling from object can't override centeredScaling from canvas.\n     * this should be fixed, since object setting should take precedence over canvas.\n     * @private\n     * @param {fabric.Object} target\n     */\n    _shouldCenterTransform: function (target) {\n      if (!target) {\n        return;\n      }\n\n      var t = this._currentTransform,\n          centerTransform;\n\n      if (t.action === 'scale' || t.action === 'scaleX' || t.action === 'scaleY') {\n        centerTransform = this.centeredScaling || target.centeredScaling;\n      }\n      else if (t.action === 'rotate') {\n        centerTransform = this.centeredRotation || target.centeredRotation;\n      }\n\n      return centerTransform ? !t.altKey : t.altKey;\n    },\n\n    /**\n     * @private\n     */\n    _getOriginFromCorner: function(target, corner) {\n      var origin = {\n        x: target.originX,\n        y: target.originY\n      };\n\n      if (corner === 'ml' || corner === 'tl' || corner === 'bl') {\n        origin.x = 'right';\n      }\n      else if (corner === 'mr' || corner === 'tr' || corner === 'br') {\n        origin.x = 'left';\n      }\n\n      if (corner === 'tl' || corner === 'mt' || corner === 'tr') {\n        origin.y = 'bottom';\n      }\n      else if (corner === 'bl' || corner === 'mb' || corner === 'br') {\n        origin.y = 'top';\n      }\n\n      return origin;\n    },\n\n    /**\n     * @private\n     * @param {Boolean} alreadySelected true if target is already selected\n     * @param {String} corner a string representing the corner ml, mr, tl ...\n     * @param {Event} e Event object\n     * @param {fabric.Object} [target] inserted back to help overriding. Unused\n     */\n    _getActionFromCorner: function(alreadySelected, corner, e /* target */) {\n      if (!corner || !alreadySelected) {\n        return 'drag';\n      }\n\n      switch (corner) {\n        case 'mtr':\n          return 'rotate';\n        case 'ml':\n        case 'mr':\n          return e[this.altActionKey] ? 'skewY' : 'scaleX';\n        case 'mt':\n        case 'mb':\n          return e[this.altActionKey] ? 'skewX' : 'scaleY';\n        default:\n          return 'scale';\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     */\n    _setupCurrentTransform: function (e, target, alreadySelected) {\n      if (!target) {\n        return;\n      }\n\n      var pointer = this.getPointer(e),\n          corner = target._findTargetCorner(this.getPointer(e, true)),\n          action = this._getActionFromCorner(alreadySelected, corner, e, target),\n          origin = this._getOriginFromCorner(target, corner);\n\n      this._currentTransform = {\n        target: target,\n        action: action,\n        corner: corner,\n        scaleX: target.scaleX,\n        scaleY: target.scaleY,\n        skewX: target.skewX,\n        skewY: target.skewY,\n        // used by transation\n        offsetX: pointer.x - target.left,\n        offsetY: pointer.y - target.top,\n        originX: origin.x,\n        originY: origin.y,\n        ex: pointer.x,\n        ey: pointer.y,\n        lastX: pointer.x,\n        lastY: pointer.y,\n        // unsure they are usefull anymore.\n        // left: target.left,\n        // top: target.top,\n        theta: degreesToRadians(target.angle),\n        // end of unsure\n        width: target.width * target.scaleX,\n        mouseXSign: 1,\n        mouseYSign: 1,\n        shiftKey: e.shiftKey,\n        altKey: e[this.centeredKey],\n        original: fabric.util.saveObjectTransform(target),\n      };\n\n      this._currentTransform.original.originX = origin.x;\n      this._currentTransform.original.originY = origin.y;\n\n      this._resetCurrentTransform();\n      this._beforeTransform(e);\n    },\n\n    /**\n     * Translates object by \"setting\" its left/top\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @return {Boolean} true if the translation occurred\n     */\n    _translateObject: function (x, y) {\n      var transform = this._currentTransform,\n          target = transform.target,\n          newLeft = x - transform.offsetX,\n          newTop = y - transform.offsetY,\n          moveX = !target.get('lockMovementX') && target.left !== newLeft,\n          moveY = !target.get('lockMovementY') && target.top !== newTop;\n\n      moveX && target.set('left', newLeft);\n      moveY && target.set('top', newTop);\n      return moveX || moveY;\n    },\n\n    /**\n     * Check if we are increasing a positive skew or lower it,\n     * checking mouse direction and pressed corner.\n     * @private\n     */\n    _changeSkewTransformOrigin: function(mouseMove, t, by) {\n      var property = 'originX', origins = { 0: 'center' },\n          skew = t.target.skewX, originA = 'left', originB = 'right',\n          corner = t.corner === 'mt' || t.corner === 'ml' ? 1 : -1,\n          flipSign = 1;\n\n      mouseMove = mouseMove > 0 ? 1 : -1;\n      if (by === 'y') {\n        skew = t.target.skewY;\n        originA = 'top';\n        originB = 'bottom';\n        property = 'originY';\n      }\n      origins[-1] = originA;\n      origins[1] = originB;\n\n      t.target.flipX && (flipSign *= -1);\n      t.target.flipY && (flipSign *= -1);\n\n      if (skew === 0) {\n        t.skewSign = -corner * mouseMove * flipSign;\n        t[property] = origins[-mouseMove];\n      }\n      else {\n        skew = skew > 0 ? 1 : -1;\n        t.skewSign = skew;\n        t[property] = origins[skew * corner * flipSign];\n      }\n    },\n\n    /**\n     * Skew object by mouse events\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @param {String} by Either 'x' or 'y'\n     * @return {Boolean} true if the skewing occurred\n     */\n    _skewObject: function (x, y, by) {\n      var t = this._currentTransform,\n          target = t.target, skewed = false,\n          lockSkewingX = target.get('lockSkewingX'),\n          lockSkewingY = target.get('lockSkewingY');\n\n      if ((lockSkewingX && by === 'x') || (lockSkewingY && by === 'y')) {\n        return false;\n      }\n\n      // Get the constraint point\n      var center = target.getCenterPoint(),\n          actualMouseByCenter = target.toLocalPoint(new fabric.Point(x, y), 'center', 'center')[by],\n          lastMouseByCenter = target.toLocalPoint(new fabric.Point(t.lastX, t.lastY), 'center', 'center')[by],\n          actualMouseByOrigin, constraintPosition, dim = target._getTransformedDimensions();\n\n      this._changeSkewTransformOrigin(actualMouseByCenter - lastMouseByCenter, t, by);\n      actualMouseByOrigin = target.toLocalPoint(new fabric.Point(x, y), t.originX, t.originY)[by];\n      constraintPosition = target.translateToOriginPoint(center, t.originX, t.originY);\n      // Actually skew the object\n      skewed = this._setObjectSkew(actualMouseByOrigin, t, by, dim);\n      t.lastX = x;\n      t.lastY = y;\n      // Make sure the constraints apply\n      target.setPositionByOrigin(constraintPosition, t.originX, t.originY);\n      return skewed;\n    },\n\n    /**\n     * Set object skew\n     * @private\n     * @return {Boolean} true if the skewing occurred\n     */\n    _setObjectSkew: function(localMouse, transform, by, _dim) {\n      var target = transform.target, newValue, skewed = false,\n          skewSign = transform.skewSign, newDim, dimNoSkew,\n          otherBy, _otherBy, _by, newDimMouse, skewX, skewY;\n\n      if (by === 'x') {\n        otherBy = 'y';\n        _otherBy = 'Y';\n        _by = 'X';\n        skewX = 0;\n        skewY = target.skewY;\n      }\n      else {\n        otherBy = 'x';\n        _otherBy = 'X';\n        _by = 'Y';\n        skewX = target.skewX;\n        skewY = 0;\n      }\n\n      dimNoSkew = target._getTransformedDimensions(skewX, skewY);\n      newDimMouse = 2 * Math.abs(localMouse) - dimNoSkew[by];\n      if (newDimMouse <= 2) {\n        newValue = 0;\n      }\n      else {\n        newValue = skewSign * Math.atan((newDimMouse / target['scale' + _by]) /\n                                        (dimNoSkew[otherBy] / target['scale' + _otherBy]));\n        newValue = fabric.util.radiansToDegrees(newValue);\n      }\n      skewed = target['skew' + _by] !== newValue;\n      target.set('skew' + _by, newValue);\n      if (target['skew' + _otherBy] !== 0) {\n        newDim = target._getTransformedDimensions();\n        newValue = (_dim[otherBy] / newDim[otherBy]) * target['scale' + _otherBy];\n        target.set('scale' + _otherBy, newValue);\n      }\n      return skewed;\n    },\n\n    /**\n     * Scales object by invoking its scaleX/scaleY methods\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @param {String} by Either 'x' or 'y' - specifies dimension constraint by which to scale an object.\n     *                    When not provided, an object is scaled by both dimensions equally\n     * @return {Boolean} true if the scaling occurred\n     */\n    _scaleObject: function (x, y, by) {\n      var t = this._currentTransform,\n          target = t.target,\n          lockScalingX = target.lockScalingX,\n          lockScalingY = target.lockScalingY,\n          lockScalingFlip = target.lockScalingFlip;\n\n      if (lockScalingX && lockScalingY) {\n        return false;\n      }\n\n      // Get the constraint point\n      var constraintPosition = target.translateToOriginPoint(target.getCenterPoint(), t.originX, t.originY),\n          localMouse = target.toLocalPoint(new fabric.Point(x, y), t.originX, t.originY),\n          dim = target._getTransformedDimensions(), scaled = false;\n\n      this._setLocalMouse(localMouse, t);\n\n      // Actually scale the object\n      scaled = this._setObjectScale(localMouse, t, lockScalingX, lockScalingY, by, lockScalingFlip, dim);\n\n      // Make sure the constraints apply\n      target.setPositionByOrigin(constraintPosition, t.originX, t.originY);\n      return scaled;\n    },\n\n    /**\n     * @private\n     * @return {Boolean} true if the scaling occurred\n     */\n    _setObjectScale: function(localMouse, transform, lockScalingX, lockScalingY, by, lockScalingFlip, _dim) {\n      var target = transform.target, forbidScalingX = false, forbidScalingY = false, scaled = false,\n          scaleX = localMouse.x * target.scaleX / _dim.x,\n          scaleY = localMouse.y * target.scaleY / _dim.y,\n          changeX = target.scaleX !== scaleX,\n          changeY = target.scaleY !== scaleY;\n\n      transform.newScaleX = scaleX;\n      transform.newScaleY = scaleY;\n      if (fabric.Textbox && by === 'x' && target instanceof fabric.Textbox) {\n        var w = target.width * (localMouse.x / _dim.x);\n        if (w >= target.getMinWidth()) {\n          scaled = w !== target.width;\n          target.set('width', w);\n          return scaled;\n        }\n        return false;\n      }\n\n      if (lockScalingFlip && scaleX <= 0 && scaleX < target.scaleX) {\n        forbidScalingX = true;\n        localMouse.x = 0;\n      }\n\n      if (lockScalingFlip && scaleY <= 0 && scaleY < target.scaleY) {\n        forbidScalingY = true;\n        localMouse.y = 0;\n      }\n\n      if (by === 'equally' && !lockScalingX && !lockScalingY) {\n        scaled = this._scaleObjectEqually(localMouse, target, transform, _dim);\n      }\n      else if (!by) {\n        forbidScalingX || lockScalingX || (target.set('scaleX', scaleX) && (scaled = scaled || changeX));\n        forbidScalingY || lockScalingY || (target.set('scaleY', scaleY) && (scaled = scaled || changeY));\n      }\n      else if (by === 'x' && !target.get('lockUniScaling')) {\n        forbidScalingX || lockScalingX || (target.set('scaleX', scaleX) && (scaled = changeX));\n      }\n      else if (by === 'y' && !target.get('lockUniScaling')) {\n        forbidScalingY || lockScalingY || (target.set('scaleY', scaleY) && (scaled = changeY));\n      }\n      forbidScalingX || forbidScalingY || this._flipObject(transform, by);\n      return scaled;\n    },\n\n    /**\n     * @private\n     * @return {Boolean} true if the scaling occurred\n     */\n    _scaleObjectEqually: function(localMouse, target, transform, _dim) {\n\n      var dist = localMouse.y + localMouse.x,\n          lastDist = _dim.y * transform.original.scaleY / target.scaleY +\n                     _dim.x * transform.original.scaleX / target.scaleX,\n          scaled, signX = localMouse.x < 0 ? -1 : 1,\n          signY = localMouse.y < 0 ? -1 : 1, newScaleX, newScaleY;\n\n      // We use transform.scaleX/Y instead of target.scaleX/Y\n      // because the object may have a min scale and we'll loose the proportions\n      newScaleX = signX * Math.abs(transform.original.scaleX * dist / lastDist);\n      newScaleY = signY * Math.abs(transform.original.scaleY * dist / lastDist);\n      scaled = newScaleX !== target.scaleX || newScaleY !== target.scaleY;\n      target.set('scaleX', newScaleX);\n      target.set('scaleY', newScaleY);\n      return scaled;\n    },\n\n    /**\n     * @private\n     */\n    _flipObject: function(transform, by) {\n      if (transform.newScaleX < 0 && by !== 'y') {\n        if (transform.originX === 'left') {\n          transform.originX = 'right';\n        }\n        else if (transform.originX === 'right') {\n          transform.originX = 'left';\n        }\n      }\n\n      if (transform.newScaleY < 0 && by !== 'x') {\n        if (transform.originY === 'top') {\n          transform.originY = 'bottom';\n        }\n        else if (transform.originY === 'bottom') {\n          transform.originY = 'top';\n        }\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setLocalMouse: function(localMouse, t) {\n      var target = t.target, zoom = this.getZoom(),\n          padding = target.padding / zoom;\n\n      if (t.originX === 'right') {\n        localMouse.x *= -1;\n      }\n      else if (t.originX === 'center') {\n        localMouse.x *= t.mouseXSign * 2;\n        if (localMouse.x < 0) {\n          t.mouseXSign = -t.mouseXSign;\n        }\n      }\n\n      if (t.originY === 'bottom') {\n        localMouse.y *= -1;\n      }\n      else if (t.originY === 'center') {\n        localMouse.y *= t.mouseYSign * 2;\n        if (localMouse.y < 0) {\n          t.mouseYSign = -t.mouseYSign;\n        }\n      }\n\n      // adjust the mouse coordinates when dealing with padding\n      if (abs(localMouse.x) > padding) {\n        if (localMouse.x < 0) {\n          localMouse.x += padding;\n        }\n        else {\n          localMouse.x -= padding;\n        }\n      }\n      else { // mouse is within the padding, set to 0\n        localMouse.x = 0;\n      }\n\n      if (abs(localMouse.y) > padding) {\n        if (localMouse.y < 0) {\n          localMouse.y += padding;\n        }\n        else {\n          localMouse.y -= padding;\n        }\n      }\n      else {\n        localMouse.y = 0;\n      }\n    },\n\n    /**\n     * Rotates object by invoking its rotate method\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @return {Boolean} true if the rotation occurred\n     */\n    _rotateObject: function (x, y) {\n\n      var t = this._currentTransform,\n          target = t.target, constraintPosition,\n          constraintPosition = target.translateToOriginPoint(target.getCenterPoint(), t.originX, t.originY);\n\n      if (target.lockRotation) {\n        return false;\n      }\n\n      var lastAngle = atan2(t.ey - constraintPosition.y, t.ex - constraintPosition.x),\n          curAngle = atan2(y - constraintPosition.y, x - constraintPosition.x),\n          angle = radiansToDegrees(curAngle - lastAngle + t.theta),\n          hasRotated = true;\n\n      if (target.snapAngle > 0) {\n        var snapAngle  = target.snapAngle,\n            snapThreshold  = target.snapThreshold || snapAngle,\n            rightAngleLocked = Math.ceil(angle / snapAngle) * snapAngle,\n            leftAngleLocked = Math.floor(angle / snapAngle) * snapAngle;\n\n        if (Math.abs(angle - leftAngleLocked) < snapThreshold) {\n          angle = leftAngleLocked;\n        }\n        else if (Math.abs(angle - rightAngleLocked) < snapThreshold) {\n          angle = rightAngleLocked;\n        }\n      }\n\n      // normalize angle to positive value\n      if (angle < 0) {\n        angle = 360 + angle;\n      }\n      angle %= 360;\n\n      if (target.angle === angle) {\n        hasRotated = false;\n      }\n      else {\n        // rotation only happen here\n        target.angle = angle;\n        // Make sure the constraints apply\n        target.setPositionByOrigin(constraintPosition, t.originX, t.originY);\n      }\n\n      return hasRotated;\n    },\n\n    /**\n     * Set the cursor type of the canvas element\n     * @param {String} value Cursor type of the canvas element.\n     * @see http://www.w3.org/TR/css3-ui/#cursor\n     */\n    setCursor: function (value) {\n      this.upperCanvasEl.style.cursor = value;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx to draw the selection on\n     */\n    _drawSelection: function (ctx) {\n      var groupSelector = this._groupSelector,\n          left = groupSelector.left,\n          top = groupSelector.top,\n          aleft = abs(left),\n          atop = abs(top);\n\n      if (this.selectionColor) {\n        ctx.fillStyle = this.selectionColor;\n\n        ctx.fillRect(\n          groupSelector.ex - ((left > 0) ? 0 : -left),\n          groupSelector.ey - ((top > 0) ? 0 : -top),\n          aleft,\n          atop\n        );\n      }\n\n      if (!this.selectionLineWidth || !this.selectionBorderColor) {\n        return;\n      }\n      ctx.lineWidth = this.selectionLineWidth;\n      ctx.strokeStyle = this.selectionBorderColor;\n\n      // selection border\n      if (this.selectionDashArray.length > 1 && !supportLineDash) {\n\n        var px = groupSelector.ex + STROKE_OFFSET - ((left > 0) ? 0 : aleft),\n            py = groupSelector.ey + STROKE_OFFSET - ((top > 0) ? 0 : atop);\n\n        ctx.beginPath();\n\n        fabric.util.drawDashedLine(ctx, px, py, px + aleft, py, this.selectionDashArray);\n        fabric.util.drawDashedLine(ctx, px, py + atop - 1, px + aleft, py + atop - 1, this.selectionDashArray);\n        fabric.util.drawDashedLine(ctx, px, py, px, py + atop, this.selectionDashArray);\n        fabric.util.drawDashedLine(ctx, px + aleft - 1, py, px + aleft - 1, py + atop, this.selectionDashArray);\n\n        ctx.closePath();\n        ctx.stroke();\n      }\n      else {\n        fabric.Object.prototype._setLineDash.call(this, ctx, this.selectionDashArray);\n        ctx.strokeRect(\n          groupSelector.ex + STROKE_OFFSET - ((left > 0) ? 0 : aleft),\n          groupSelector.ey + STROKE_OFFSET - ((top > 0) ? 0 : atop),\n          aleft,\n          atop\n        );\n      }\n    },\n\n    /**\n     * Method that determines what object we are clicking on\n     * the skipGroup parameter is for internal use, is needed for shift+click action\n     * 11/09/2018 TODO: would be cool if findTarget could discern between being a full target\n     * or the outside part of the corner.\n     * @param {Event} e mouse event\n     * @param {Boolean} skipGroup when true, activeGroup is skipped and only objects are traversed through\n     * @return {fabric.Object} the target found\n     */\n    findTarget: function (e, skipGroup) {\n      if (this.skipTargetFind) {\n        return;\n      }\n\n      var ignoreZoom = true,\n          pointer = this.getPointer(e, ignoreZoom),\n          activeObject = this._activeObject,\n          aObjects = this.getActiveObjects(),\n          activeTarget, activeTargetSubs;\n\n      // first check current group (if one exists)\n      // active group does not check sub targets like normal groups.\n      // if active group just exits.\n      this.targets = [];\n\n      if (aObjects.length > 1 && !skipGroup && activeObject === this._searchPossibleTargets([activeObject], pointer)) {\n        return activeObject;\n      }\n      // if we hit the corner of an activeObject, let's return that.\n      if (aObjects.length === 1 && activeObject._findTargetCorner(pointer)) {\n        return activeObject;\n      }\n      if (aObjects.length === 1 &&\n        activeObject === this._searchPossibleTargets([activeObject], pointer)) {\n        if (!this.preserveObjectStacking) {\n          return activeObject;\n        }\n        else {\n          activeTarget = activeObject;\n          activeTargetSubs = this.targets;\n          this.targets = [];\n        }\n      }\n      var target = this._searchPossibleTargets(this._objects, pointer);\n      if (e[this.altSelectionKey] && target && activeTarget && target !== activeTarget) {\n        target = activeTarget;\n        this.targets = activeTargetSubs;\n      }\n      return target;\n    },\n\n    /**\n     * Checks point is inside the object.\n     * @param {Object} [pointer] x,y object of point coordinates we want to check.\n     * @param {fabric.Object} obj Object to test against\n     * @param {Object} [globalPointer] x,y object of point coordinates relative to canvas used to search per pixel target.\n     * @return {Boolean} true if point is contained within an area of given object\n     * @private\n     */\n    _checkTarget: function(pointer, obj, globalPointer) {\n      if (obj &&\n          obj.visible &&\n          obj.evented &&\n          this.containsPoint(null, obj, pointer)){\n        if ((this.perPixelTargetFind || obj.perPixelTargetFind) && !obj.isEditing) {\n          var isTransparent = this.isTargetTransparent(obj, globalPointer.x, globalPointer.y);\n          if (!isTransparent) {\n            return true;\n          }\n        }\n        else {\n          return true;\n        }\n      }\n    },\n\n    /**\n     * Function used to search inside objects an object that contains pointer in bounding box or that contains pointerOnCanvas when painted\n     * @param {Array} [objects] objects array to look into\n     * @param {Object} [pointer] x,y object of point coordinates we want to check.\n     * @return {fabric.Object} object that contains pointer\n     * @private\n     */\n    _searchPossibleTargets: function(objects, pointer) {\n      // Cache all targets where their bounding box contains point.\n      var target, i = objects.length, subTarget;\n      // Do not check for currently grouped objects, since we check the parent group itself.\n      // until we call this function specifically to search inside the activeGroup\n      while (i--) {\n        var objToCheck = objects[i];\n        var pointerToUse = objToCheck.group && objToCheck.group.type !== 'activeSelection' ?\n          this._normalizePointer(objToCheck.group, pointer) : pointer;\n        if (this._checkTarget(pointerToUse, objToCheck, pointer)) {\n          target = objects[i];\n          if (target.subTargetCheck && target instanceof fabric.Group) {\n            subTarget = this._searchPossibleTargets(target._objects, pointer);\n            subTarget && this.targets.push(subTarget);\n          }\n          break;\n        }\n      }\n      return target;\n    },\n\n    /**\n     * Returns pointer coordinates without the effect of the viewport\n     * @param {Object} pointer with \"x\" and \"y\" number values\n     * @return {Object} object with \"x\" and \"y\" number values\n     */\n    restorePointerVpt: function(pointer) {\n      return fabric.util.transformPoint(\n        pointer,\n        fabric.util.invertTransform(this.viewportTransform)\n      );\n    },\n\n    /**\n     * Returns pointer coordinates relative to canvas.\n     * Can return coordinates with or without viewportTransform.\n     * ignoreZoom false gives back coordinates that represent\n     * the point clicked on canvas element.\n     * ignoreZoom true gives back coordinates after being processed\n     * by the viewportTransform ( sort of coordinates of what is displayed\n     * on the canvas where you are clicking.\n     * ignoreZoom true = HTMLElement coordinates relative to top,left\n     * ignoreZoom false, default = fabric space coordinates, the same used for shape position\n     * To interact with your shapes top and left you want to use ignoreZoom true\n     * most of the time, while ignoreZoom false will give you coordinates\n     * compatible with the object.oCoords system.\n     * of the time.\n     * @param {Event} e\n     * @param {Boolean} ignoreZoom\n     * @return {Object} object with \"x\" and \"y\" number values\n     */\n    getPointer: function (e, ignoreZoom) {\n      // return cached values if we are in the event processing chain\n      if (this._absolutePointer && !ignoreZoom) {\n        return this._absolutePointer;\n      }\n      if (this._pointer && ignoreZoom) {\n        return this._pointer;\n      }\n\n      var pointer = getPointer(e),\n          upperCanvasEl = this.upperCanvasEl,\n          bounds = upperCanvasEl.getBoundingClientRect(),\n          boundsWidth = bounds.width || 0,\n          boundsHeight = bounds.height || 0,\n          cssScale;\n\n      if (!boundsWidth || !boundsHeight ) {\n        if ('top' in bounds && 'bottom' in bounds) {\n          boundsHeight = Math.abs( bounds.top - bounds.bottom );\n        }\n        if ('right' in bounds && 'left' in bounds) {\n          boundsWidth = Math.abs( bounds.right - bounds.left );\n        }\n      }\n\n      this.calcOffset();\n      pointer.x = pointer.x - this._offset.left;\n      pointer.y = pointer.y - this._offset.top;\n      if (!ignoreZoom) {\n        pointer = this.restorePointerVpt(pointer);\n      }\n\n      var retinaScaling = this.getRetinaScaling();\n      if (retinaScaling !== 1) {\n        pointer.x /= retinaScaling;\n        pointer.y /= retinaScaling;\n      }\n\n      if (boundsWidth === 0 || boundsHeight === 0) {\n        // If bounds are not available (i.e. not visible), do not apply scale.\n        cssScale = { width: 1, height: 1 };\n      }\n      else {\n        cssScale = {\n          width: upperCanvasEl.width / boundsWidth,\n          height: upperCanvasEl.height / boundsHeight\n        };\n      }\n\n      return {\n        x: pointer.x * cssScale.width,\n        y: pointer.y * cssScale.height\n      };\n    },\n\n    /**\n     * @private\n     * @throws {CANVAS_INIT_ERROR} If canvas can not be initialized\n     */\n    _createUpperCanvas: function () {\n      var lowerCanvasClass = this.lowerCanvasEl.className.replace(/\\s*lower-canvas\\s*/, ''),\n          lowerCanvasEl = this.lowerCanvasEl, upperCanvasEl = this.upperCanvasEl;\n\n      // there is no need to create a new upperCanvas element if we have already one.\n      if (upperCanvasEl) {\n        upperCanvasEl.className = '';\n      }\n      else {\n        upperCanvasEl = this._createCanvasElement();\n        this.upperCanvasEl = upperCanvasEl;\n      }\n      fabric.util.addClass(upperCanvasEl, 'upper-canvas ' + lowerCanvasClass);\n\n      this.wrapperEl.appendChild(upperCanvasEl);\n\n      this._copyCanvasStyle(lowerCanvasEl, upperCanvasEl);\n      this._applyCanvasStyle(upperCanvasEl);\n      this.contextTop = upperCanvasEl.getContext('2d');\n    },\n\n    /**\n     * @private\n     */\n    _createCacheCanvas: function () {\n      this.cacheCanvasEl = this._createCanvasElement();\n      this.cacheCanvasEl.setAttribute('width', this.width);\n      this.cacheCanvasEl.setAttribute('height', this.height);\n      this.contextCache = this.cacheCanvasEl.getContext('2d');\n    },\n\n    /**\n     * @private\n     */\n    _initWrapperElement: function () {\n      this.wrapperEl = fabric.util.wrapElement(this.lowerCanvasEl, 'div', {\n        'class': this.containerClass\n      });\n      fabric.util.setStyle(this.wrapperEl, {\n        width: this.width + 'px',\n        height: this.height + 'px',\n        position: 'relative'\n      });\n      fabric.util.makeElementUnselectable(this.wrapperEl);\n    },\n\n    /**\n     * @private\n     * @param {HTMLElement} element canvas element to apply styles on\n     */\n    _applyCanvasStyle: function (element) {\n      var width = this.width || element.width,\n          height = this.height || element.height;\n\n      fabric.util.setStyle(element, {\n        position: 'absolute',\n        width: width + 'px',\n        height: height + 'px',\n        left: 0,\n        top: 0,\n        'touch-action': this.allowTouchScrolling ? 'manipulation' : 'none',\n        '-ms-touch-action': this.allowTouchScrolling ? 'manipulation' : 'none'\n      });\n      element.width = width;\n      element.height = height;\n      fabric.util.makeElementUnselectable(element);\n    },\n\n    /**\n     * Copy the entire inline style from one element (fromEl) to another (toEl)\n     * @private\n     * @param {Element} fromEl Element style is copied from\n     * @param {Element} toEl Element copied style is applied to\n     */\n    _copyCanvasStyle: function (fromEl, toEl) {\n      toEl.style.cssText = fromEl.style.cssText;\n    },\n\n    /**\n     * Returns context of canvas where object selection is drawn\n     * @return {CanvasRenderingContext2D}\n     */\n    getSelectionContext: function() {\n      return this.contextTop;\n    },\n\n    /**\n     * Returns &lt;canvas> element on which object selection is drawn\n     * @return {HTMLCanvasElement}\n     */\n    getSelectionElement: function () {\n      return this.upperCanvasEl;\n    },\n\n    /**\n     * Returns currently active object\n     * @return {fabric.Object} active object\n     */\n    getActiveObject: function () {\n      return this._activeObject;\n    },\n\n    /**\n     * Returns an array with the current selected objects\n     * @return {fabric.Object} active object\n     */\n    getActiveObjects: function () {\n      var active = this._activeObject;\n      if (active) {\n        if (active.type === 'activeSelection' && active._objects) {\n          return active._objects.slice(0);\n        }\n        else {\n          return [active];\n        }\n      }\n      return [];\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} obj Object that was removed\n     */\n    _onObjectRemoved: function(obj) {\n      // removing active object should fire \"selection:cleared\" events\n      if (obj === this._activeObject) {\n        this.fire('before:selection:cleared', { target: obj });\n        this._discardActiveObject();\n        this.fire('selection:cleared', { target: obj });\n        obj.fire('deselected');\n      }\n      if (obj === this._hoveredTarget){\n        this._hoveredTarget = null;\n        this._hoveredTargets = [];\n      }\n      this.callSuper('_onObjectRemoved', obj);\n    },\n\n    /**\n     * @private\n     * Compares the old activeObject with the current one and fires correct events\n     * @param {fabric.Object} obj old activeObject\n     */\n    _fireSelectionEvents: function(oldObjects, e) {\n      var somethingChanged = false, objects = this.getActiveObjects(),\n          added = [], removed = [], opt = { e: e };\n      oldObjects.forEach(function(oldObject) {\n        if (objects.indexOf(oldObject) === -1) {\n          somethingChanged = true;\n          oldObject.fire('deselected', opt);\n          removed.push(oldObject);\n        }\n      });\n      objects.forEach(function(object) {\n        if (oldObjects.indexOf(object) === -1) {\n          somethingChanged = true;\n          object.fire('selected', opt);\n          added.push(object);\n        }\n      });\n      if (oldObjects.length > 0 && objects.length > 0) {\n        opt.selected = added;\n        opt.deselected = removed;\n        // added for backward compatibility\n        opt.updated = added[0] || removed[0];\n        opt.target = this._activeObject;\n        somethingChanged && this.fire('selection:updated', opt);\n      }\n      else if (objects.length > 0) {\n        // deprecated event\n        if (objects.length === 1) {\n          opt.target = added[0];\n          this.fire('object:selected', opt);\n        }\n        opt.selected = added;\n        // added for backward compatibility\n        opt.target = this._activeObject;\n        this.fire('selection:created', opt);\n      }\n      else if (oldObjects.length > 0) {\n        opt.deselected = removed;\n        this.fire('selection:cleared', opt);\n      }\n    },\n\n    /**\n     * Sets given object as the only active object on canvas\n     * @param {fabric.Object} object Object to set as an active one\n     * @param {Event} [e] Event (passed along when firing \"object:selected\")\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    setActiveObject: function (object, e) {\n      var currentActives = this.getActiveObjects();\n      this._setActiveObject(object, e);\n      this._fireSelectionEvents(currentActives, e);\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {Object} object to set as active\n     * @param {Event} [e] Event (passed along when firing \"object:selected\")\n     * @return {Boolean} true if the selection happened\n     */\n    _setActiveObject: function(object, e) {\n      if (this._activeObject === object) {\n        return false;\n      }\n      if (!this._discardActiveObject(e, object)) {\n        return false;\n      }\n      if (object.onSelect({ e: e })) {\n        return false;\n      }\n      this._activeObject = object;\n      return true;\n    },\n\n    /**\n     * @private\n     */\n    _discardActiveObject: function(e, object) {\n      var obj = this._activeObject;\n      if (obj) {\n        // onDeselect return TRUE to cancel selection;\n        if (obj.onDeselect({ e: e, object: object })) {\n          return false;\n        }\n        this._activeObject = null;\n      }\n      return true;\n    },\n\n    /**\n     * Discards currently active object and fire events. If the function is called by fabric\n     * as a consequence of a mouse event, the event is passed as a parameter and\n     * sent to the fire function for the custom events. When used as a method the\n     * e param does not have any application.\n     * @param {event} e\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    discardActiveObject: function (e) {\n      var currentActives = this.getActiveObjects(), activeObject = this.getActiveObject();\n      if (currentActives.length) {\n        this.fire('before:selection:cleared', { target: activeObject, e: e });\n      }\n      this._discardActiveObject(e);\n      this._fireSelectionEvents(currentActives, e);\n      return this;\n    },\n\n    /**\n     * Clears a canvas element and removes all event listeners\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    dispose: function () {\n      var wrapper = this.wrapperEl;\n      this.removeListeners();\n      wrapper.removeChild(this.upperCanvasEl);\n      wrapper.removeChild(this.lowerCanvasEl);\n      this.contextCache = null;\n      this.contextTop = null;\n      ['upperCanvasEl', 'cacheCanvasEl'].forEach((function(element) {\n        fabric.util.cleanUpJsdomNode(this[element]);\n        this[element] = undefined;\n      }).bind(this));\n      if (wrapper.parentNode) {\n        wrapper.parentNode.replaceChild(this.lowerCanvasEl, this.wrapperEl);\n      }\n      delete this.wrapperEl;\n      fabric.StaticCanvas.prototype.dispose.call(this);\n      return this;\n    },\n\n    /**\n     * Clears all contexts (background, main, top) of an instance\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    clear: function () {\n      // this.discardActiveGroup();\n      this.discardActiveObject();\n      this.clearContext(this.contextTop);\n      return this.callSuper('clear');\n    },\n\n    /**\n     * Draws objects' controls (borders/controls)\n     * @param {CanvasRenderingContext2D} ctx Context to render controls on\n     */\n    drawControls: function(ctx) {\n      var activeObject = this._activeObject;\n\n      if (activeObject) {\n        activeObject._renderControls(ctx);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _toObject: function(instance, methodName, propertiesToInclude) {\n      //If the object is part of the current selection group, it should\n      //be transformed appropriately\n      //i.e. it should be serialised as it would appear if the selection group\n      //were to be destroyed.\n      var originalProperties = this._realizeGroupTransformOnObject(instance),\n          object = this.callSuper('_toObject', instance, methodName, propertiesToInclude);\n      //Undo the damage we did by changing all of its properties\n      this._unwindGroupTransformOnObject(instance, originalProperties);\n      return object;\n    },\n\n    /**\n     * Realises an object's group transformation on it\n     * @private\n     * @param {fabric.Object} [instance] the object to transform (gets mutated)\n     * @returns the original values of instance which were changed\n     */\n    _realizeGroupTransformOnObject: function(instance) {\n      if (instance.group && instance.group.type === 'activeSelection' && this._activeObject === instance.group) {\n        var layoutProps = ['angle', 'flipX', 'flipY', 'left', 'scaleX', 'scaleY', 'skewX', 'skewY', 'top'];\n        //Copy all the positionally relevant properties across now\n        var originalValues = {};\n        layoutProps.forEach(function(prop) {\n          originalValues[prop] = instance[prop];\n        });\n        this._activeObject.realizeTransform(instance);\n        return originalValues;\n      }\n      else {\n        return null;\n      }\n    },\n\n    /**\n     * Restores the changed properties of instance\n     * @private\n     * @param {fabric.Object} [instance] the object to un-transform (gets mutated)\n     * @param {Object} [originalValues] the original values of instance, as returned by _realizeGroupTransformOnObject\n     */\n    _unwindGroupTransformOnObject: function(instance, originalValues) {\n      if (originalValues) {\n        instance.set(originalValues);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setSVGObject: function(markup, instance, reviver) {\n      //If the object is in a selection group, simulate what would happen to that\n      //object when the group is deselected\n      var originalProperties = this._realizeGroupTransformOnObject(instance);\n      this.callSuper('_setSVGObject', markup, instance, reviver);\n      this._unwindGroupTransformOnObject(instance, originalProperties);\n    },\n\n    setViewportTransform: function (vpt) {\n      if (this.renderOnAddRemove && this._activeObject && this._activeObject.isEditing) {\n        this._activeObject.clearContextTop();\n      }\n      fabric.StaticCanvas.prototype.setViewportTransform.call(this, vpt);\n    }\n  });\n\n  // copying static properties manually to work around Opera's bug,\n  // where \"prototype\" property is enumerable and overrides existing prototype\n  for (var prop in fabric.StaticCanvas) {\n    if (prop !== 'prototype') {\n      fabric.Canvas[prop] = fabric.StaticCanvas[prop];\n    }\n  }\n})();\n\n\n(function() {\n\n  var cursorOffset = {\n        mt: 0, // n\n        tr: 1, // ne\n        mr: 2, // e\n        br: 3, // se\n        mb: 4, // s\n        bl: 5, // sw\n        ml: 6, // w\n        tl: 7 // nw\n      },\n      addListener = fabric.util.addListener,\n      removeListener = fabric.util.removeListener,\n      RIGHT_CLICK = 3, MIDDLE_CLICK = 2, LEFT_CLICK = 1,\n      addEventOptions = { passive: false };\n\n  function checkClick(e, value) {\n    return e.button && (e.button === value - 1);\n  }\n\n  fabric.util.object.extend(fabric.Canvas.prototype, /** @lends fabric.Canvas.prototype */ {\n\n    /**\n     * Map of cursor style values for each of the object controls\n     * @private\n     */\n    cursorMap: [\n      'n-resize',\n      'ne-resize',\n      'e-resize',\n      'se-resize',\n      's-resize',\n      'sw-resize',\n      'w-resize',\n      'nw-resize'\n    ],\n\n    /**\n     * Contains the id of the touch event that owns the fabric transform\n     * @type Number\n     * @private\n     */\n    mainTouchId: null,\n\n    /**\n     * Adds mouse listeners to canvas\n     * @private\n     */\n    _initEventListeners: function () {\n      // in case we initialized the class twice. This should not happen normally\n      // but in some kind of applications where the canvas element may be changed\n      // this is a workaround to having double listeners.\n      this.removeListeners();\n      this._bindEvents();\n      this.addOrRemove(addListener, 'add');\n    },\n\n    /**\n     * return an event prefix pointer or mouse.\n     * @private\n     */\n    _getEventPrefix: function () {\n      return this.enablePointerEvents ? 'pointer' : 'mouse';\n    },\n\n    addOrRemove: function(functor, eventjsFunctor) {\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      functor(fabric.window, 'resize', this._onResize);\n      functor(canvasElement, eventTypePrefix + 'down', this._onMouseDown);\n      functor(canvasElement, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      functor(canvasElement, eventTypePrefix + 'out', this._onMouseOut);\n      functor(canvasElement, eventTypePrefix + 'enter', this._onMouseEnter);\n      functor(canvasElement, 'wheel', this._onMouseWheel);\n      functor(canvasElement, 'contextmenu', this._onContextMenu);\n      functor(canvasElement, 'dblclick', this._onDoubleClick);\n      functor(canvasElement, 'dragover', this._onDragOver);\n      functor(canvasElement, 'dragenter', this._onDragEnter);\n      functor(canvasElement, 'dragleave', this._onDragLeave);\n      functor(canvasElement, 'drop', this._onDrop);\n      if (!this.enablePointerEvents) {\n        functor(canvasElement, 'touchstart', this._onTouchStart, addEventOptions);\n      }\n      if (typeof eventjs !== 'undefined' && eventjsFunctor in eventjs) {\n        eventjs[eventjsFunctor](canvasElement, 'gesture', this._onGesture);\n        eventjs[eventjsFunctor](canvasElement, 'drag', this._onDrag);\n        eventjs[eventjsFunctor](canvasElement, 'orientation', this._onOrientationChange);\n        eventjs[eventjsFunctor](canvasElement, 'shake', this._onShake);\n        eventjs[eventjsFunctor](canvasElement, 'longpress', this._onLongPress);\n      }\n    },\n\n    /**\n     * Removes all event listeners\n     */\n    removeListeners: function() {\n      this.addOrRemove(removeListener, 'remove');\n      // if you dispose on a mouseDown, before mouse up, you need to clean document to...\n      var eventTypePrefix = this._getEventPrefix();\n      removeListener(fabric.document, eventTypePrefix + 'up', this._onMouseUp);\n      removeListener(fabric.document, 'touchend', this._onTouchEnd, addEventOptions);\n      removeListener(fabric.document, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      removeListener(fabric.document, 'touchmove', this._onMouseMove, addEventOptions);\n    },\n\n    /**\n     * @private\n     */\n    _bindEvents: function() {\n      if (this.eventsBound) {\n        // for any reason we pass here twice we do not want to bind events twice.\n        return;\n      }\n      this._onMouseDown = this._onMouseDown.bind(this);\n      this._onTouchStart = this._onTouchStart.bind(this);\n      this._onMouseMove = this._onMouseMove.bind(this);\n      this._onMouseUp = this._onMouseUp.bind(this);\n      this._onTouchEnd = this._onTouchEnd.bind(this);\n      this._onResize = this._onResize.bind(this);\n      this._onGesture = this._onGesture.bind(this);\n      this._onDrag = this._onDrag.bind(this);\n      this._onShake = this._onShake.bind(this);\n      this._onLongPress = this._onLongPress.bind(this);\n      this._onOrientationChange = this._onOrientationChange.bind(this);\n      this._onMouseWheel = this._onMouseWheel.bind(this);\n      this._onMouseOut = this._onMouseOut.bind(this);\n      this._onMouseEnter = this._onMouseEnter.bind(this);\n      this._onContextMenu = this._onContextMenu.bind(this);\n      this._onDoubleClick = this._onDoubleClick.bind(this);\n      this._onDragOver = this._onDragOver.bind(this);\n      this._onDragEnter = this._simpleEventHandler.bind(this, 'dragenter');\n      this._onDragLeave = this._simpleEventHandler.bind(this, 'dragleave');\n      this._onDrop = this._simpleEventHandler.bind(this, 'drop');\n      this.eventsBound = true;\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js gesture\n     * @param {Event} [self] Inner Event object\n     */\n    _onGesture: function(e, self) {\n      this.__onTransformGesture && this.__onTransformGesture(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js drag\n     * @param {Event} [self] Inner Event object\n     */\n    _onDrag: function(e, self) {\n      this.__onDrag && this.__onDrag(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on wheel event\n     */\n    _onMouseWheel: function(e) {\n      this.__onMouseWheel(e);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onMouseOut: function(e) {\n      var target = this._hoveredTarget;\n      this.fire('mouse:out', { target: target, e: e });\n      this._hoveredTarget = null;\n      target && target.fire('mouseout', { e: e });\n\n      var _this = this;\n      this._hoveredTargets.forEach(function(_target){\n        _this.fire('mouse:out', { target: target, e: e });\n        _target && target.fire('mouseout', { e: e });\n      });\n      this._hoveredTargets = [];\n\n      if (this._iTextInstances) {\n        this._iTextInstances.forEach(function(obj) {\n          if (obj.isEditing) {\n            obj.hiddenTextarea.focus();\n          }\n        });\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mouseenter\n     */\n    _onMouseEnter: function(e) {\n      // This find target and consequent 'mouse:over' is used to\n      // clear old instances on hovered target.\n      // calling findTarget has the side effect of killing target.__corner.\n      // as a short term fix we are not firing this if we are currently transforming.\n      // as a long term fix we need to separate the action of finding a target with the\n      // side effects we added to it.\n      if (!this.currentTransform && !this.findTarget(e)) {\n        this.fire('mouse:over', { target: null, e: e });\n        this._hoveredTarget = null;\n        this._hoveredTargets = [];\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js orientation change\n     * @param {Event} [self] Inner Event object\n     */\n    _onOrientationChange: function(e, self) {\n      this.__onOrientationChange && this.__onOrientationChange(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js shake\n     * @param {Event} [self] Inner Event object\n     */\n    _onShake: function(e, self) {\n      this.__onShake && this.__onShake(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js shake\n     * @param {Event} [self] Inner Event object\n     */\n    _onLongPress: function(e, self) {\n      this.__onLongPress && this.__onLongPress(e, self);\n    },\n\n    /**\n     * prevent default to allow drop event to be fired\n     * @private\n     * @param {Event} [e] Event object fired on Event.js shake\n     */\n    _onDragOver: function(e) {\n      e.preventDefault();\n      var target = this._simpleEventHandler('dragover', e);\n      this._fireEnterLeaveEvents(target, e);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onContextMenu: function (e) {\n      if (this.stopContextMenu) {\n        e.stopPropagation();\n        e.preventDefault();\n      }\n      return false;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onDoubleClick: function (e) {\n      this._cacheTransformEventData(e);\n      this._handleEvent(e, 'dblclick');\n      this._resetTransformEventData(e);\n    },\n\n    /**\n     * Return a the id of an event.\n     * returns either the pointerId or the identifier or 0 for the mouse event\n     * @private\n     * @param {Event} evt Event object\n     */\n    getPointerId: function(evt) {\n      var changedTouches = evt.changedTouches;\n\n      if (changedTouches) {\n        return changedTouches[0] && changedTouches[0].identifier;\n      }\n\n      if (this.enablePointerEvents) {\n        return evt.pointerId;\n      }\n\n      return -1;\n    },\n\n    /**\n     * Determines if an event has the id of the event that is considered main\n     * @private\n     * @param {evt} event Event object\n     */\n    _isMainEvent: function(evt) {\n      if (evt.isPrimary === true) {\n        return true;\n      }\n      if (evt.isPrimary === false) {\n        return false;\n      }\n      if (evt.type === 'touchend' && evt.touches.length === 0) {\n        return true;\n      }\n      if (evt.changedTouches) {\n        return evt.changedTouches[0].identifier === this.mainTouchId;\n      }\n      return true;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onTouchStart: function(e) {\n      e.preventDefault();\n      if (this.mainTouchId === null) {\n        this.mainTouchId = this.getPointerId(e);\n      }\n      this.__onMouseDown(e);\n      this._resetTransformEventData();\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      addListener(fabric.document, 'touchend', this._onTouchEnd, addEventOptions);\n      addListener(fabric.document, 'touchmove', this._onMouseMove, addEventOptions);\n      // Unbind mousedown to prevent double triggers from touch devices\n      removeListener(canvasElement, eventTypePrefix + 'down', this._onMouseDown);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onMouseDown: function (e) {\n      this.__onMouseDown(e);\n      this._resetTransformEventData();\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      removeListener(canvasElement, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      addListener(fabric.document, eventTypePrefix + 'up', this._onMouseUp);\n      addListener(fabric.document, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onTouchEnd: function(e) {\n      if (e.touches.length > 0) {\n        // if there are still touches stop here\n        return;\n      }\n      this.__onMouseUp(e);\n      this._resetTransformEventData();\n      this.mainTouchId = null;\n      var eventTypePrefix = this._getEventPrefix();\n      removeListener(fabric.document, 'touchend', this._onTouchEnd, addEventOptions);\n      removeListener(fabric.document, 'touchmove', this._onMouseMove, addEventOptions);\n      var _this = this;\n      if (this._willAddMouseDown) {\n        clearTimeout(this._willAddMouseDown);\n      }\n      this._willAddMouseDown = setTimeout(function() {\n        // Wait 400ms before rebinding mousedown to prevent double triggers\n        // from touch devices\n        addListener(_this.upperCanvasEl, eventTypePrefix + 'down', _this._onMouseDown);\n        _this._willAddMouseDown = 0;\n      }, 400);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mouseup\n     */\n    _onMouseUp: function (e) {\n      this.__onMouseUp(e);\n      this._resetTransformEventData();\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      if (this._isMainEvent(e)) {\n        removeListener(fabric.document, eventTypePrefix + 'up', this._onMouseUp);\n        removeListener(fabric.document, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n        addListener(canvasElement, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousemove\n     */\n    _onMouseMove: function (e) {\n      !this.allowTouchScrolling && e.preventDefault && e.preventDefault();\n      this.__onMouseMove(e);\n    },\n\n    /**\n     * @private\n     */\n    _onResize: function () {\n      this.calcOffset();\n    },\n\n    /**\n     * Decides whether the canvas should be redrawn in mouseup and mousedown events.\n     * @private\n     * @param {Object} target\n     */\n    _shouldRender: function(target) {\n      var activeObject = this._activeObject;\n\n      if (\n        !!activeObject !== !!target ||\n        (activeObject && target && (activeObject !== target))\n      ) {\n        // this covers: switch of target, from target to no target, selection of target\n        // multiSelection with key and mouse\n        return true;\n      }\n      else if (activeObject && activeObject.isEditing) {\n        // if we mouse up/down over a editing textbox a cursor change,\n        // there is no need to re render\n        return false;\n      }\n      return false;\n    },\n\n    /**\n     * Method that defines the actions when mouse is released on canvas.\n     * The method resets the currentTransform parameters, store the image corner\n     * position in the image object and render the canvas on top.\n     * @private\n     * @param {Event} e Event object fired on mouseup\n     */\n    __onMouseUp: function (e) {\n      var target, transform = this._currentTransform,\n          groupSelector = this._groupSelector, shouldRender = false,\n          isClick = (!groupSelector || (groupSelector.left === 0 && groupSelector.top === 0));\n      this._cacheTransformEventData(e);\n      target = this._target;\n      this._handleEvent(e, 'up:before');\n      // if right/middle click just fire events and return\n      // target undefined will make the _handleEvent search the target\n      if (checkClick(e, RIGHT_CLICK)) {\n        if (this.fireRightClick) {\n          this._handleEvent(e, 'up', RIGHT_CLICK, isClick);\n        }\n        return;\n      }\n\n      if (checkClick(e, MIDDLE_CLICK)) {\n        if (this.fireMiddleClick) {\n          this._handleEvent(e, 'up', MIDDLE_CLICK, isClick);\n        }\n        this._resetTransformEventData();\n        return;\n      }\n\n      if (this.isDrawingMode && this._isCurrentlyDrawing) {\n        this._onMouseUpInDrawingMode(e);\n        return;\n      }\n\n      if (!this._isMainEvent(e)) {\n        return;\n      }\n      if (transform) {\n        this._finalizeCurrentTransform(e);\n        shouldRender = transform.actionPerformed;\n      }\n\n      if (!isClick) {\n        this._maybeGroupObjects(e);\n        shouldRender || (shouldRender = this._shouldRender(target));\n      }\n      if (target) {\n        target.isMoving = false;\n      }\n      this._setCursorFromEvent(e, target);\n      this._handleEvent(e, 'up', LEFT_CLICK, isClick);\n      this._groupSelector = null;\n      this._currentTransform = null;\n      // reset the target information about which corner is selected\n      target && (target.__corner = 0);\n      if (shouldRender) {\n        this.requestRenderAll();\n      }\n      else if (!isClick) {\n        this.renderTop();\n      }\n    },\n\n    /**\n     * @private\n     * Handle event firing for target and subtargets\n     * @param {Event} e event from mouse\n     * @param {String} eventType event to fire (up, down or move)\n     * @return {Fabric.Object} target return the the target found, for internal reasons.\n     */\n    _simpleEventHandler: function(eventType, e) {\n      var target = this.findTarget(e),\n          targets = this.targets,\n          options = {\n            e: e,\n            target: target,\n            subTargets: targets,\n          };\n      this.fire(eventType, options);\n      target && target.fire(eventType, options);\n      if (!targets) {\n        return target;\n      }\n      for (var i = 0; i < targets.length; i++) {\n        targets[i].fire(eventType, options);\n      }\n      return target;\n    },\n\n    /**\n     * @private\n     * Handle event firing for target and subtargets\n     * @param {Event} e event from mouse\n     * @param {String} eventType event to fire (up, down or move)\n     * @param {fabric.Object} targetObj receiving event\n     * @param {Number} [button] button used in the event 1 = left, 2 = middle, 3 = right\n     * @param {Boolean} isClick for left button only, indicates that the mouse up happened without move.\n     */\n    _handleEvent: function(e, eventType, button, isClick) {\n      var target = this._target,\n          targets = this.targets || [],\n          options = {\n            e: e,\n            target: target,\n            subTargets: targets,\n            button: button || LEFT_CLICK,\n            isClick: isClick || false,\n            pointer: this._pointer,\n            absolutePointer: this._absolutePointer,\n            transform: this._currentTransform\n          };\n      this.fire('mouse:' + eventType, options);\n      target && target.fire('mouse' + eventType, options);\n      for (var i = 0; i < targets.length; i++) {\n        targets[i].fire('mouse' + eventType, options);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e send the mouse event that generate the finalize down, so it can be used in the event\n     */\n    _finalizeCurrentTransform: function(e) {\n\n      var transform = this._currentTransform,\n          target = transform.target,\n          eventName,\n          options = {\n            e: e,\n            target: target,\n            transform: transform,\n          };\n\n      if (target._scaling) {\n        target._scaling = false;\n      }\n\n      target.setCoords();\n\n      if (transform.actionPerformed || (this.stateful && target.hasStateChanged())) {\n        if (transform.actionPerformed) {\n          eventName = this._addEventOptions(options, transform);\n          this._fire(eventName, options);\n        }\n        this._fire('modified', options);\n      }\n    },\n\n    /**\n     * Mutate option object in order to add by property and give back the event name.\n     * @private\n     * @param {Object} options to mutate\n     * @param {Object} transform to inspect action from\n     */\n    _addEventOptions: function(options, transform) {\n      // we can probably add more details at low cost\n      // scale change, rotation changes, translation changes\n      var eventName, by;\n      switch (transform.action) {\n        case 'scaleX':\n          eventName = 'scaled';\n          by = 'x';\n          break;\n        case 'scaleY':\n          eventName = 'scaled';\n          by = 'y';\n          break;\n        case 'skewX':\n          eventName = 'skewed';\n          by = 'x';\n          break;\n        case 'skewY':\n          eventName = 'skewed';\n          by = 'y';\n          break;\n        case 'scale':\n          eventName = 'scaled';\n          by = 'equally';\n          break;\n        case 'rotate':\n          eventName = 'rotated';\n          break;\n        case 'drag':\n          eventName = 'moved';\n          break;\n      }\n      options.by = by;\n      return eventName;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onMouseDownInDrawingMode: function(e) {\n      this._isCurrentlyDrawing = true;\n      if (this.getActiveObject()) {\n        this.discardActiveObject(e).requestRenderAll();\n      }\n      if (this.clipTo) {\n        fabric.util.clipContext(this, this.contextTop);\n      }\n      var pointer = this.getPointer(e);\n      this.freeDrawingBrush.onMouseDown(pointer, { e: e, pointer: pointer });\n      this._handleEvent(e, 'down');\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousemove\n     */\n    _onMouseMoveInDrawingMode: function(e) {\n      if (this._isCurrentlyDrawing) {\n        var pointer = this.getPointer(e);\n        this.freeDrawingBrush.onMouseMove(pointer, { e: e, pointer: pointer });\n      }\n      this.setCursor(this.freeDrawingCursor);\n      this._handleEvent(e, 'move');\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mouseup\n     */\n    _onMouseUpInDrawingMode: function(e) {\n      if (this.clipTo) {\n        this.contextTop.restore();\n      }\n      var pointer = this.getPointer(e);\n      this._isCurrentlyDrawing = this.freeDrawingBrush.onMouseUp({ e: e, pointer: pointer });\n      this._handleEvent(e, 'up');\n    },\n\n    /**\n     * Method that defines the actions when mouse is clicked on canvas.\n     * The method inits the currentTransform parameters and renders all the\n     * canvas so the current image can be placed on the top canvas and the rest\n     * in on the container one.\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    __onMouseDown: function (e) {\n      this._cacheTransformEventData(e);\n      this._handleEvent(e, 'down:before');\n      var target = this._target;\n      // if right click just fire events\n      if (checkClick(e, RIGHT_CLICK)) {\n        if (this.fireRightClick) {\n          this._handleEvent(e, 'down', RIGHT_CLICK);\n        }\n        return;\n      }\n\n      if (checkClick(e, MIDDLE_CLICK)) {\n        if (this.fireMiddleClick) {\n          this._handleEvent(e, 'down', MIDDLE_CLICK);\n        }\n        return;\n      }\n\n      if (this.isDrawingMode) {\n        this._onMouseDownInDrawingMode(e);\n        return;\n      }\n\n      if (!this._isMainEvent(e)) {\n        return;\n      }\n\n      // ignore if some object is being transformed at this moment\n      if (this._currentTransform) {\n        return;\n      }\n\n      var pointer = this._pointer;\n      // save pointer for check in __onMouseUp event\n      this._previousPointer = pointer;\n      var shouldRender = this._shouldRender(target),\n          shouldGroup = this._shouldGroup(e, target);\n      if (this._shouldClearSelection(e, target)) {\n        this.discardActiveObject(e);\n      }\n      else if (shouldGroup) {\n        this._handleGrouping(e, target);\n        target = this._activeObject;\n      }\n\n      if (this.selection && (!target ||\n        (!target.selectable && !target.isEditing && target !== this._activeObject))) {\n        this._groupSelector = {\n          ex: pointer.x,\n          ey: pointer.y,\n          top: 0,\n          left: 0\n        };\n      }\n\n      if (target) {\n        var alreadySelected = target === this._activeObject;\n        if (target.selectable) {\n          this.setActiveObject(target, e);\n        }\n        if (target === this._activeObject && (target.__corner || !shouldGroup)) {\n          this._setupCurrentTransform(e, target, alreadySelected);\n        }\n      }\n      this._handleEvent(e, 'down');\n      // we must renderAll so that we update the visuals\n      (shouldRender || shouldGroup) && this.requestRenderAll();\n    },\n\n    /**\n     * reset cache form common information needed during event processing\n     * @private\n     */\n    _resetTransformEventData: function() {\n      this._target = null;\n      this._pointer = null;\n      this._absolutePointer = null;\n    },\n\n    /**\n     * Cache common information needed during event processing\n     * @private\n     * @param {Event} e Event object fired on event\n     */\n    _cacheTransformEventData: function(e) {\n      // reset in order to avoid stale caching\n      this._resetTransformEventData();\n      this._pointer = this.getPointer(e, true);\n      this._absolutePointer = this.restorePointerVpt(this._pointer);\n      this._target = this._currentTransform ? this._currentTransform.target : this.findTarget(e) || null;\n    },\n\n    /**\n     * @private\n     */\n    _beforeTransform: function(e) {\n      var t = this._currentTransform;\n      this.stateful && t.target.saveState();\n      this.fire('before:transform', {\n        e: e,\n        transform: t,\n      });\n      // determine if it's a drag or rotate case\n      if (t.corner) {\n        this.onBeforeScaleRotate(t.target);\n      }\n    },\n\n    /**\n     * Method that defines the actions when mouse is hovering the canvas.\n     * The currentTransform parameter will define whether the user is rotating/scaling/translating\n     * an image or neither of them (only hovering). A group selection is also possible and would cancel\n     * all any other type of action.\n     * In case of an image transformation only the top canvas will be rendered.\n     * @private\n     * @param {Event} e Event object fired on mousemove\n     */\n    __onMouseMove: function (e) {\n      this._handleEvent(e, 'move:before');\n      this._cacheTransformEventData(e);\n      var target, pointer;\n\n      if (this.isDrawingMode) {\n        this._onMouseMoveInDrawingMode(e);\n        return;\n      }\n\n      if (!this._isMainEvent(e)) {\n        return;\n      }\n\n      var groupSelector = this._groupSelector;\n\n      // We initially clicked in an empty area, so we draw a box for multiple selection\n      if (groupSelector) {\n        pointer = this._pointer;\n\n        groupSelector.left = pointer.x - groupSelector.ex;\n        groupSelector.top = pointer.y - groupSelector.ey;\n\n        this.renderTop();\n      }\n      else if (!this._currentTransform) {\n        target = this.findTarget(e) || null;\n        this._setCursorFromEvent(e, target);\n        this._fireOverOutEvents(target, e);\n      }\n      else {\n        this._transformObject(e);\n      }\n      this._handleEvent(e, 'move');\n      this._resetTransformEventData();\n    },\n\n    /**\n     * Manage the mouseout, mouseover events for the fabric object on the canvas\n     * @param {Fabric.Object} target the target where the target from the mousemove event\n     * @param {Event} e Event object fired on mousemove\n     * @private\n     */\n    _fireOverOutEvents: function(target, e) {\n      var _hoveredTarget = this._hoveredTarget,\n          _hoveredTargets = this._hoveredTargets, targets = this.targets,\n          length = Math.max(_hoveredTargets.length, targets.length);\n\n      this.fireSyntheticInOutEvents(target, e, {\n        oldTarget: _hoveredTarget,\n        evtOut: 'mouseout',\n        canvasEvtOut: 'mouse:out',\n        evtIn: 'mouseover',\n        canvasEvtIn: 'mouse:over',\n      });\n      for (var i = 0; i < length; i++){\n        this.fireSyntheticInOutEvents(targets[i], e, {\n          oldTarget: _hoveredTargets[i],\n          evtOut: 'mouseout',\n          evtIn: 'mouseover',\n        });\n      }\n      this._hoveredTarget = target;\n      this._hoveredTargets = this.targets.concat();\n    },\n\n    /**\n     * Manage the dragEnter, dragLeave events for the fabric objects on the canvas\n     * @param {Fabric.Object} target the target where the target from the onDrag event\n     * @param {Event} e Event object fired on ondrag\n     * @private\n     */\n    _fireEnterLeaveEvents: function(target, e) {\n      var _draggedoverTarget = this._draggedoverTarget,\n          _hoveredTargets = this._hoveredTargets, targets = this.targets,\n          length = Math.max(_hoveredTargets.length, targets.length);\n\n      this.fireSyntheticInOutEvents(target, e, {\n        oldTarget: _draggedoverTarget,\n        evtOut: 'dragleave',\n        evtIn: 'dragenter',\n      });\n      for (var i = 0; i < length; i++) {\n        this.fireSyntheticInOutEvents(targets[i], e, {\n          oldTarget: _hoveredTargets[i],\n          evtOut: 'dragleave',\n          evtIn: 'dragenter',\n        });\n      }\n      this._draggedoverTarget = target;\n    },\n\n    /**\n     * Manage the synthetic in/out events for the fabric objects on the canvas\n     * @param {Fabric.Object} target the target where the target from the supported events\n     * @param {Event} e Event object fired\n     * @param {Object} config configuration for the function to work\n     * @param {String} config.targetName property on the canvas where the old target is stored\n     * @param {String} [config.canvasEvtOut] name of the event to fire at canvas level for out\n     * @param {String} config.evtOut name of the event to fire for out\n     * @param {String} [config.canvasEvtIn] name of the event to fire at canvas level for in\n     * @param {String} config.evtIn name of the event to fire for in\n     * @private\n     */\n    fireSyntheticInOutEvents: function(target, e, config) {\n      var inOpt, outOpt, oldTarget = config.oldTarget, outFires, inFires,\n          targetChanged = oldTarget !== target, canvasEvtIn = config.canvasEvtIn, canvasEvtOut = config.canvasEvtOut;\n      if (targetChanged) {\n        inOpt = { e: e, target: target, previousTarget: oldTarget };\n        outOpt = { e: e, target: oldTarget, nextTarget: target };\n      }\n      inFires = target && targetChanged;\n      outFires = oldTarget && targetChanged;\n      if (outFires) {\n        canvasEvtOut && this.fire(canvasEvtOut, outOpt);\n        oldTarget.fire(config.evtOut, outOpt);\n      }\n      if (inFires) {\n        canvasEvtIn && this.fire(canvasEvtIn, inOpt);\n        target.fire(config.evtIn, inOpt);\n      }\n    },\n\n    /**\n     * Method that defines actions when an Event Mouse Wheel\n     * @param {Event} e Event object fired on mouseup\n     */\n    __onMouseWheel: function(e) {\n      this._cacheTransformEventData(e);\n      this._handleEvent(e, 'wheel');\n      this._resetTransformEventData();\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event fired on mousemove\n     */\n    _transformObject: function(e) {\n      var pointer = this.getPointer(e),\n          transform = this._currentTransform;\n\n      transform.reset = false;\n      transform.target.isMoving = true;\n      transform.shiftKey = e.shiftKey;\n      transform.altKey = e[this.centeredKey];\n\n      this._beforeScaleTransform(e, transform);\n      this._performTransformAction(e, transform, pointer);\n\n      transform.actionPerformed && this.requestRenderAll();\n    },\n\n    /**\n     * @private\n     */\n    _performTransformAction: function(e, transform, pointer) {\n      var x = pointer.x,\n          y = pointer.y,\n          action = transform.action,\n          actionPerformed = false,\n          options = {\n            target: transform.target,\n            e: e,\n            transform: transform,\n            pointer: pointer\n          };\n\n      if (action === 'rotate') {\n        (actionPerformed = this._rotateObject(x, y)) && this._fire('rotating', options);\n      }\n      else if (action === 'scale') {\n        (actionPerformed = this._onScale(e, transform, x, y)) && this._fire('scaling', options);\n      }\n      else if (action === 'scaleX') {\n        (actionPerformed = this._scaleObject(x, y, 'x')) && this._fire('scaling', options);\n      }\n      else if (action === 'scaleY') {\n        (actionPerformed = this._scaleObject(x, y, 'y')) && this._fire('scaling', options);\n      }\n      else if (action === 'skewX') {\n        (actionPerformed = this._skewObject(x, y, 'x')) && this._fire('skewing', options);\n      }\n      else if (action === 'skewY') {\n        (actionPerformed = this._skewObject(x, y, 'y')) && this._fire('skewing', options);\n      }\n      else {\n        actionPerformed = this._translateObject(x, y);\n        if (actionPerformed) {\n          this._fire('moving', options);\n          this.setCursor(options.target.moveCursor || this.moveCursor);\n        }\n      }\n      transform.actionPerformed = transform.actionPerformed || actionPerformed;\n    },\n\n    /**\n     * @private\n     */\n    _fire: function(eventName, options) {\n      this.fire('object:' + eventName, options);\n      options.target.fire(eventName, options);\n    },\n\n    /**\n     * @private\n     */\n    _beforeScaleTransform: function(e, transform) {\n      if (transform.action === 'scale' || transform.action === 'scaleX' || transform.action === 'scaleY') {\n        var centerTransform = this._shouldCenterTransform(transform.target);\n\n        // Switch from a normal resize to center-based\n        if ((centerTransform && (transform.originX !== 'center' || transform.originY !== 'center')) ||\n           // Switch from center-based resize to normal one\n           (!centerTransform && transform.originX === 'center' && transform.originY === 'center')\n        ) {\n          this._resetCurrentTransform();\n          transform.reset = true;\n        }\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {Object} transform current transform\n     * @param {Number} x mouse position x from origin\n     * @param {Number} y mouse position y from origin\n     * @return {Boolean} true if the scaling occurred\n     */\n    _onScale: function(e, transform, x, y) {\n      if (this._isUniscalePossible(e, transform.target)) {\n        transform.currentAction = 'scale';\n        return this._scaleObject(x, y);\n      }\n      else {\n        // Switch from a normal resize to proportional\n        if (!transform.reset && transform.currentAction === 'scale') {\n          this._resetCurrentTransform();\n        }\n\n        transform.currentAction = 'scaleEqually';\n        return this._scaleObject(x, y, 'equally');\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target current target\n     * @return {Boolean} true if unproportional scaling is possible\n     */\n    _isUniscalePossible: function(e, target) {\n      return (e[this.uniScaleKey] || this.uniScaleTransform) && !target.get('lockUniScaling');\n    },\n\n    /**\n     * Sets the cursor depending on where the canvas is being hovered.\n     * Note: very buggy in Opera\n     * @param {Event} e Event object\n     * @param {Object} target Object that the mouse is hovering, if so.\n     */\n    _setCursorFromEvent: function (e, target) {\n      if (!target) {\n        this.setCursor(this.defaultCursor);\n        return false;\n      }\n      var hoverCursor = target.hoverCursor || this.hoverCursor,\n          activeSelection = this._activeObject && this._activeObject.type === 'activeSelection' ?\n            this._activeObject : null,\n          // only show proper corner when group selection is not active\n          corner = (!activeSelection || !activeSelection.contains(target))\n                    && target._findTargetCorner(this.getPointer(e, true));\n\n      if (!corner) {\n        if (target.subTargetCheck){\n          // hoverCursor should come from top-most subTarget,\n          // so we walk the array backwards\n          this.targets.concat().reverse().map(function(_target){\n            hoverCursor = _target.hoverCursor || hoverCursor;\n          });\n        }\n        this.setCursor(hoverCursor);\n      }\n      else {\n        this.setCursor(this.getCornerCursor(corner, target, e));\n      }\n    },\n\n    /**\n     * @private\n     */\n    getCornerCursor: function(corner, target, e) {\n      if (this.actionIsDisabled(corner, target, e)) {\n        return this.notAllowedCursor;\n      }\n      else if (corner in cursorOffset) {\n        return this._getRotatedCornerCursor(corner, target, e);\n      }\n      else if (corner === 'mtr' && target.hasRotatingPoint) {\n        return this.rotationCursor;\n      }\n      else {\n        return this.defaultCursor;\n      }\n    },\n\n    actionIsDisabled: function(corner, target, e) {\n      if (corner === 'mt' || corner === 'mb') {\n        return e[this.altActionKey] ? target.lockSkewingX : target.lockScalingY;\n      }\n      else if (corner === 'ml' || corner === 'mr') {\n        return e[this.altActionKey] ? target.lockSkewingY : target.lockScalingX;\n      }\n      else if (corner === 'mtr') {\n        return target.lockRotation;\n      }\n      else {\n        return this._isUniscalePossible(e, target) ?\n          target.lockScalingX && target.lockScalingY : target.lockScalingX || target.lockScalingY;\n      }\n    },\n\n    /**\n     * @private\n     */\n    _getRotatedCornerCursor: function(corner, target, e) {\n      var n = Math.round((target.angle % 360) / 45);\n\n      if (n < 0) {\n        n += 8; // full circle ahead\n      }\n      n += cursorOffset[corner];\n      if (e[this.altActionKey] && cursorOffset[corner] % 2 === 0) {\n        //if we are holding shift and we are on a mx corner...\n        n += 2;\n      }\n      // normalize n to be from 0 to 7\n      n %= 8;\n\n      return this.cursorMap[n];\n    }\n  });\n})();\n\n\n(function() {\n\n  var min = Math.min,\n      max = Math.max;\n\n  fabric.util.object.extend(fabric.Canvas.prototype, /** @lends fabric.Canvas.prototype */ {\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     * @return {Boolean}\n     */\n    _shouldGroup: function(e, target) {\n      var activeObject = this._activeObject;\n      return activeObject && this._isSelectionKeyPressed(e) && target && target.selectable && this.selection &&\n            (activeObject !== target || activeObject.type === 'activeSelection') && !target.onSelect({ e: e });\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     */\n    _handleGrouping: function (e, target) {\n      var activeObject = this._activeObject;\n      // avoid multi select when shift click on a corner\n      if (activeObject.__corner) {\n        return;\n      }\n      if (target === activeObject) {\n        // if it's a group, find target again, using activeGroup objects\n        target = this.findTarget(e, true);\n        // if even object is not found or we are on activeObjectCorner, bail out\n        if (!target || !target.selectable) {\n          return;\n        }\n      }\n      if (activeObject && activeObject.type === 'activeSelection') {\n        this._updateActiveSelection(target, e);\n      }\n      else {\n        this._createActiveSelection(target, e);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _updateActiveSelection: function(target, e) {\n      var activeSelection = this._activeObject,\n          currentActiveObjects = activeSelection._objects.slice(0);\n      if (activeSelection.contains(target)) {\n        activeSelection.removeWithUpdate(target);\n        this._hoveredTarget = target;\n        this._hoveredTargets = this.targets.concat();\n        if (activeSelection.size() === 1) {\n          // activate last remaining object\n          this._setActiveObject(activeSelection.item(0), e);\n        }\n      }\n      else {\n        activeSelection.addWithUpdate(target);\n        this._hoveredTarget = activeSelection;\n        this._hoveredTargets = this.targets.concat();\n      }\n      this._fireSelectionEvents(currentActiveObjects, e);\n    },\n\n    /**\n     * @private\n     */\n    _createActiveSelection: function(target, e) {\n      var currentActives = this.getActiveObjects(), group = this._createGroup(target);\n      this._hoveredTarget = group;\n      // ISSUE 4115: should we consider subTargets here?\n      // this._hoveredTargets = [];\n      // this._hoveredTargets = this.targets.concat();\n      this._setActiveObject(group, e);\n      this._fireSelectionEvents(currentActives, e);\n    },\n\n    /**\n     * @private\n     * @param {Object} target\n     */\n    _createGroup: function(target) {\n      var objects = this._objects,\n          isActiveLower = objects.indexOf(this._activeObject) < objects.indexOf(target),\n          groupObjects = isActiveLower\n            ? [this._activeObject, target]\n            : [target, this._activeObject];\n      this._activeObject.isEditing && this._activeObject.exitEditing();\n      return new fabric.ActiveSelection(groupObjects, {\n        canvas: this\n      });\n    },\n\n    /**\n     * @private\n     * @param {Event} e mouse event\n     */\n    _groupSelectedObjects: function (e) {\n\n      var group = this._collectObjects(e),\n          aGroup;\n\n      // do not create group for 1 element only\n      if (group.length === 1) {\n        this.setActiveObject(group[0], e);\n      }\n      else if (group.length > 1) {\n        aGroup = new fabric.ActiveSelection(group.reverse(), {\n          canvas: this\n        });\n        this.setActiveObject(aGroup, e);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _collectObjects: function(e) {\n      var group = [],\n          currentObject,\n          x1 = this._groupSelector.ex,\n          y1 = this._groupSelector.ey,\n          x2 = x1 + this._groupSelector.left,\n          y2 = y1 + this._groupSelector.top,\n          selectionX1Y1 = new fabric.Point(min(x1, x2), min(y1, y2)),\n          selectionX2Y2 = new fabric.Point(max(x1, x2), max(y1, y2)),\n          allowIntersect = !this.selectionFullyContained,\n          isClick = x1 === x2 && y1 === y2;\n      // we iterate reverse order to collect top first in case of click.\n      for (var i = this._objects.length; i--; ) {\n        currentObject = this._objects[i];\n\n        if (!currentObject || !currentObject.selectable || !currentObject.visible) {\n          continue;\n        }\n\n        if ((allowIntersect && currentObject.intersectsWithRect(selectionX1Y1, selectionX2Y2)) ||\n            currentObject.isContainedWithinRect(selectionX1Y1, selectionX2Y2) ||\n            (allowIntersect && currentObject.containsPoint(selectionX1Y1)) ||\n            (allowIntersect && currentObject.containsPoint(selectionX2Y2))\n        ) {\n          group.push(currentObject);\n          // only add one object if it's a click\n          if (isClick) {\n            break;\n          }\n        }\n      }\n\n      if (group.length > 1) {\n        group = group.filter(function(object) {\n          return !object.onSelect({ e: e });\n        });\n      }\n\n      return group;\n    },\n\n    /**\n     * @private\n     */\n    _maybeGroupObjects: function(e) {\n      if (this.selection && this._groupSelector) {\n        this._groupSelectedObjects(e);\n      }\n      this.setCursor(this.defaultCursor);\n      // clear selection and current transformation\n      this._groupSelector = null;\n    }\n  });\n\n})();\n\n\n(function () {\n  fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n    /**\n     * Exports canvas element to a dataurl image. Note that when multiplier is used, cropping is scaled appropriately\n     * @param {Object} [options] Options object\n     * @param {String} [options.format=png] The format of the output image. Either \"jpeg\" or \"png\"\n     * @param {Number} [options.quality=1] Quality level (0..1). Only used for jpeg.\n     * @param {Number} [options.multiplier=1] Multiplier to scale by, to have consistent\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 2.0.0\n     * @return {String} Returns a data: URL containing a representation of the object in the format specified by options.format\n     * @see {@link http://jsfiddle.net/fabricjs/NfZVb/|jsFiddle demo}\n     * @example <caption>Generate jpeg dataURL with lower quality</caption>\n     * var dataURL = canvas.toDataURL({\n     *   format: 'jpeg',\n     *   quality: 0.8\n     * });\n     * @example <caption>Generate cropped png dataURL (clipping of canvas)</caption>\n     * var dataURL = canvas.toDataURL({\n     *   format: 'png',\n     *   left: 100,\n     *   top: 100,\n     *   width: 200,\n     *   height: 200\n     * });\n     * @example <caption>Generate double scaled png dataURL</caption>\n     * var dataURL = canvas.toDataURL({\n     *   format: 'png',\n     *   multiplier: 2\n     * });\n     */\n    toDataURL: function (options) {\n      options || (options = { });\n\n      var format = options.format || 'png',\n          quality = options.quality || 1,\n          multiplier = (options.multiplier || 1) * (options.enableRetinaScaling ? this.getRetinaScaling() : 1),\n          canvasEl = this.toCanvasElement(multiplier, options);\n      return fabric.util.toDataURL(canvasEl, format, quality);\n    },\n\n    /**\n     * Create a new HTMLCanvas element painted with the current canvas content.\n     * No need to resize the actual one or repaint it.\n     * Will transfer object ownership to a new canvas, paint it, and set everything back.\n     * This is an intermediary step used to get to a dataUrl but also it is useful to\n     * create quick image copies of a canvas without passing for the dataUrl string\n     * @param {Number} [multiplier] a zoom factor.\n     * @param {Object} [cropping] Cropping informations\n     * @param {Number} [cropping.left] Cropping left offset.\n     * @param {Number} [cropping.top] Cropping top offset.\n     * @param {Number} [cropping.width] Cropping width.\n     * @param {Number} [cropping.height] Cropping height.\n     */\n    toCanvasElement: function(multiplier, cropping) {\n      multiplier = multiplier || 1;\n      cropping = cropping || { };\n      var scaledWidth = (cropping.width || this.width) * multiplier,\n          scaledHeight = (cropping.height || this.height) * multiplier,\n          zoom = this.getZoom(),\n          originalWidth = this.width,\n          originalHeight = this.height,\n          newZoom = zoom * multiplier,\n          vp = this.viewportTransform,\n          translateX = (vp[4] - (cropping.left || 0)) * multiplier,\n          translateY = (vp[5] - (cropping.top || 0)) * multiplier,\n          originalInteractive = this.interactive,\n          newVp = [newZoom, 0, 0, newZoom, translateX, translateY],\n          originalRetina = this.enableRetinaScaling,\n          canvasEl = fabric.util.createCanvasElement(),\n          originalContextTop = this.contextTop;\n      canvasEl.width = scaledWidth;\n      canvasEl.height = scaledHeight;\n      this.contextTop = null;\n      this.enableRetinaScaling = false;\n      this.interactive = false;\n      this.viewportTransform = newVp;\n      this.width = scaledWidth;\n      this.height = scaledHeight;\n      this.calcViewportBoundaries();\n      this.renderCanvas(canvasEl.getContext('2d'), this._objects);\n      this.viewportTransform = vp;\n      this.width = originalWidth;\n      this.height = originalHeight;\n      this.calcViewportBoundaries();\n      this.interactive = originalInteractive;\n      this.enableRetinaScaling = originalRetina;\n      this.contextTop = originalContextTop;\n      return canvasEl;\n    },\n  });\n\n})();\n\n\nfabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n  /**\n   * Populates canvas with data from the specified dataless JSON.\n   * JSON format must conform to the one of {@link fabric.Canvas#toDatalessJSON}\n   * @deprecated since 1.2.2\n   * @param {String|Object} json JSON string or object\n   * @param {Function} callback Callback, invoked when json is parsed\n   *                            and corresponding objects (e.g: {@link fabric.Image})\n   *                            are initialized\n   * @param {Function} [reviver] Method for further parsing of JSON elements, called after each fabric object created.\n   * @return {fabric.Canvas} instance\n   * @chainable\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#deserialization}\n   */\n  loadFromDatalessJSON: function (json, callback, reviver) {\n    return this.loadFromJSON(json, callback, reviver);\n  },\n\n  /**\n   * Populates canvas with data from the specified JSON.\n   * JSON format must conform to the one of {@link fabric.Canvas#toJSON}\n   * @param {String|Object} json JSON string or object\n   * @param {Function} callback Callback, invoked when json is parsed\n   *                            and corresponding objects (e.g: {@link fabric.Image})\n   *                            are initialized\n   * @param {Function} [reviver] Method for further parsing of JSON elements, called after each fabric object created.\n   * @return {fabric.Canvas} instance\n   * @chainable\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#deserialization}\n   * @see {@link http://jsfiddle.net/fabricjs/fmgXt/|jsFiddle demo}\n   * @example <caption>loadFromJSON</caption>\n   * canvas.loadFromJSON(json, canvas.renderAll.bind(canvas));\n   * @example <caption>loadFromJSON with reviver</caption>\n   * canvas.loadFromJSON(json, canvas.renderAll.bind(canvas), function(o, object) {\n   *   // `o` = json object\n   *   // `object` = fabric.Object instance\n   *   // ... do some stuff ...\n   * });\n   */\n  loadFromJSON: function (json, callback, reviver) {\n    if (!json) {\n      return;\n    }\n\n    // serialize if it wasn't already\n    var serialized = (typeof json === 'string')\n      ? JSON.parse(json)\n      : fabric.util.object.clone(json);\n\n    var _this = this,\n        clipPath = serialized.clipPath,\n        renderOnAddRemove = this.renderOnAddRemove;\n\n    this.renderOnAddRemove = false;\n\n    delete serialized.clipPath;\n\n    this._enlivenObjects(serialized.objects, function (enlivenedObjects) {\n      _this.clear();\n      _this._setBgOverlay(serialized, function () {\n        if (clipPath) {\n          _this._enlivenObjects([clipPath], function (enlivenedCanvasClip) {\n            _this.clipPath = enlivenedCanvasClip[0];\n            _this.__setupCanvas.call(_this, serialized, enlivenedObjects, renderOnAddRemove, callback);\n          });\n        }\n        else {\n          _this.__setupCanvas.call(_this, serialized, enlivenedObjects, renderOnAddRemove, callback);\n        }\n      });\n    }, reviver);\n    return this;\n  },\n\n  /**\n   * @private\n   * @param {Object} serialized Object with background and overlay information\n   * @param {Array} restored canvas objects\n   * @param {Function} cached renderOnAddRemove callback\n   * @param {Function} callback Invoked after all background and overlay images/patterns loaded\n   */\n  __setupCanvas: function(serialized, enlivenedObjects, renderOnAddRemove, callback) {\n    var _this = this;\n    enlivenedObjects.forEach(function(obj, index) {\n      // we splice the array just in case some custom classes restored from JSON\n      // will add more object to canvas at canvas init.\n      _this.insertAt(obj, index);\n    });\n    this.renderOnAddRemove = renderOnAddRemove;\n    // remove parts i cannot set as options\n    delete serialized.objects;\n    delete serialized.backgroundImage;\n    delete serialized.overlayImage;\n    delete serialized.background;\n    delete serialized.overlay;\n    // this._initOptions does too many things to just\n    // call it. Normally loading an Object from JSON\n    // create the Object instance. Here the Canvas is\n    // already an instance and we are just loading things over it\n    this._setOptions(serialized);\n    this.renderAll();\n    callback && callback();\n  },\n\n  /**\n   * @private\n   * @param {Object} serialized Object with background and overlay information\n   * @param {Function} callback Invoked after all background and overlay images/patterns loaded\n   */\n  _setBgOverlay: function(serialized, callback) {\n    var loaded = {\n      backgroundColor: false,\n      overlayColor: false,\n      backgroundImage: false,\n      overlayImage: false\n    };\n\n    if (!serialized.backgroundImage && !serialized.overlayImage && !serialized.background && !serialized.overlay) {\n      callback && callback();\n      return;\n    }\n\n    var cbIfLoaded = function () {\n      if (loaded.backgroundImage && loaded.overlayImage && loaded.backgroundColor && loaded.overlayColor) {\n        callback && callback();\n      }\n    };\n\n    this.__setBgOverlay('backgroundImage', serialized.backgroundImage, loaded, cbIfLoaded);\n    this.__setBgOverlay('overlayImage', serialized.overlayImage, loaded, cbIfLoaded);\n    this.__setBgOverlay('backgroundColor', serialized.background, loaded, cbIfLoaded);\n    this.__setBgOverlay('overlayColor', serialized.overlay, loaded, cbIfLoaded);\n  },\n\n  /**\n   * @private\n   * @param {String} property Property to set (backgroundImage, overlayImage, backgroundColor, overlayColor)\n   * @param {(Object|String)} value Value to set\n   * @param {Object} loaded Set loaded property to true if property is set\n   * @param {Object} callback Callback function to invoke after property is set\n   */\n  __setBgOverlay: function(property, value, loaded, callback) {\n    var _this = this;\n\n    if (!value) {\n      loaded[property] = true;\n      callback && callback();\n      return;\n    }\n\n    if (property === 'backgroundImage' || property === 'overlayImage') {\n      fabric.util.enlivenObjects([value], function(enlivedObject){\n        _this[property] = enlivedObject[0];\n        loaded[property] = true;\n        callback && callback();\n      });\n    }\n    else {\n      this['set' + fabric.util.string.capitalize(property, true)](value, function() {\n        loaded[property] = true;\n        callback && callback();\n      });\n    }\n  },\n\n  /**\n   * @private\n   * @param {Array} objects\n   * @param {Function} callback\n   * @param {Function} [reviver]\n   */\n  _enlivenObjects: function (objects, callback, reviver) {\n    if (!objects || objects.length === 0) {\n      callback && callback([]);\n      return;\n    }\n\n    fabric.util.enlivenObjects(objects, function(enlivenedObjects) {\n      callback && callback(enlivenedObjects);\n    }, null, reviver);\n  },\n\n  /**\n   * @private\n   * @param {String} format\n   * @param {Function} callback\n   */\n  _toDataURL: function (format, callback) {\n    this.clone(function (clone) {\n      callback(clone.toDataURL(format));\n    });\n  },\n\n  /**\n   * @private\n   * @param {String} format\n   * @param {Number} multiplier\n   * @param {Function} callback\n   */\n  _toDataURLWithMultiplier: function (format, multiplier, callback) {\n    this.clone(function (clone) {\n      callback(clone.toDataURLWithMultiplier(format, multiplier));\n    });\n  },\n\n  /**\n   * Clones canvas instance\n   * @param {Object} [callback] Receives cloned instance as a first argument\n   * @param {Array} [properties] Array of properties to include in the cloned canvas and children\n   */\n  clone: function (callback, properties) {\n    var data = JSON.stringify(this.toJSON(properties));\n    this.cloneWithoutData(function(clone) {\n      clone.loadFromJSON(data, function() {\n        callback && callback(clone);\n      });\n    });\n  },\n\n  /**\n   * Clones canvas instance without cloning existing data.\n   * This essentially copies canvas dimensions, clipping properties, etc.\n   * but leaves data empty (so that you can populate it with your own)\n   * @param {Object} [callback] Receives cloned instance as a first argument\n   */\n  cloneWithoutData: function(callback) {\n    var el = fabric.util.createCanvasElement();\n\n    el.width = this.width;\n    el.height = this.height;\n\n    var clone = new fabric.Canvas(el);\n    clone.clipTo = this.clipTo;\n    if (this.backgroundImage) {\n      clone.setBackgroundImage(this.backgroundImage.src, function() {\n        clone.renderAll();\n        callback && callback(clone);\n      });\n      clone.backgroundImageOpacity = this.backgroundImageOpacity;\n      clone.backgroundImageStretch = this.backgroundImageStretch;\n    }\n    else {\n      callback && callback(clone);\n    }\n  }\n});\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      clone = fabric.util.object.clone,\n      toFixed = fabric.util.toFixed,\n      capitalize = fabric.util.string.capitalize,\n      degreesToRadians = fabric.util.degreesToRadians,\n      supportsLineDash = fabric.StaticCanvas.supports('setLineDash'),\n      objectCaching = !fabric.isLikelyNode,\n      ALIASING_LIMIT = 2;\n\n  if (fabric.Object) {\n    return;\n  }\n\n  /**\n   * Root object class from which all 2d shape classes inherit from\n   * @class fabric.Object\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#objects}\n   * @see {@link fabric.Object#initialize} for constructor definition\n   *\n   * @fires added\n   * @fires removed\n   *\n   * @fires selected\n   * @fires deselected\n   * @fires modified\n   * @fires modified\n   * @fires moved\n   * @fires scaled\n   * @fires rotated\n   * @fires skewed\n   *\n   * @fires rotating\n   * @fires scaling\n   * @fires moving\n   * @fires skewing\n   *\n   * @fires mousedown\n   * @fires mouseup\n   * @fires mouseover\n   * @fires mouseout\n   * @fires mousewheel\n   * @fires mousedblclick\n   *\n   * @fires dragover\n   * @fires dragenter\n   * @fires dragleave\n   * @fires drop\n   */\n  fabric.Object = fabric.util.createClass(fabric.CommonMethods, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Type of an object (rect, circle, path, etc.).\n     * Note that this property is meant to be read-only and not meant to be modified.\n     * If you modify, certain parts of Fabric (such as JSON loading) won't work correctly.\n     * @type String\n     * @default\n     */\n    type:                     'object',\n\n    /**\n     * Horizontal origin of transformation of an object (one of \"left\", \"right\", \"center\")\n     * See http://jsfiddle.net/1ow02gea/244/ on how originX/originY affect objects in groups\n     * @type String\n     * @default\n     */\n    originX:                  'left',\n\n    /**\n     * Vertical origin of transformation of an object (one of \"top\", \"bottom\", \"center\")\n     * See http://jsfiddle.net/1ow02gea/244/ on how originX/originY affect objects in groups\n     * @type String\n     * @default\n     */\n    originY:                  'top',\n\n    /**\n     * Top position of an object. Note that by default it's relative to object top. You can change this by setting originY={top/center/bottom}\n     * @type Number\n     * @default\n     */\n    top:                      0,\n\n    /**\n     * Left position of an object. Note that by default it's relative to object left. You can change this by setting originX={left/center/right}\n     * @type Number\n     * @default\n     */\n    left:                     0,\n\n    /**\n     * Object width\n     * @type Number\n     * @default\n     */\n    width:                    0,\n\n    /**\n     * Object height\n     * @type Number\n     * @default\n     */\n    height:                   0,\n\n    /**\n     * Object scale factor (horizontal)\n     * @type Number\n     * @default\n     */\n    scaleX:                   1,\n\n    /**\n     * Object scale factor (vertical)\n     * @type Number\n     * @default\n     */\n    scaleY:                   1,\n\n    /**\n     * When true, an object is rendered as flipped horizontally\n     * @type Boolean\n     * @default\n     */\n    flipX:                    false,\n\n    /**\n     * When true, an object is rendered as flipped vertically\n     * @type Boolean\n     * @default\n     */\n    flipY:                    false,\n\n    /**\n     * Opacity of an object\n     * @type Number\n     * @default\n     */\n    opacity:                  1,\n\n    /**\n     * Angle of rotation of an object (in degrees)\n     * @type Number\n     * @default\n     */\n    angle:                    0,\n\n    /**\n     * Angle of skew on x axes of an object (in degrees)\n     * @type Number\n     * @default\n     */\n    skewX:                    0,\n\n    /**\n     * Angle of skew on y axes of an object (in degrees)\n     * @type Number\n     * @default\n     */\n    skewY:                    0,\n\n    /**\n     * Size of object's controlling corners (in pixels)\n     * @type Number\n     * @default\n     */\n    cornerSize:               13,\n\n    /**\n     * When true, object's controlling corners are rendered as transparent inside (i.e. stroke instead of fill)\n     * @type Boolean\n     * @default\n     */\n    transparentCorners:       true,\n\n    /**\n     * Default cursor value used when hovering over this object on canvas\n     * @type String\n     * @default\n     */\n    hoverCursor:              null,\n\n    /**\n     * Default cursor value used when moving this object on canvas\n     * @type String\n     * @default\n     */\n    moveCursor:               null,\n\n    /**\n     * Padding between object and its controlling borders (in pixels)\n     * @type Number\n     * @default\n     */\n    padding:                  0,\n\n    /**\n     * Color of controlling borders of an object (when it's active)\n     * @type String\n     * @default\n     */\n    borderColor:              'rgba(102,153,255,0.75)',\n\n    /**\n     * Array specifying dash pattern of an object's borders (hasBorder must be true)\n     * @since 1.6.2\n     * @type Array\n     */\n    borderDashArray:          null,\n\n    /**\n     * Color of controlling corners of an object (when it's active)\n     * @type String\n     * @default\n     */\n    cornerColor:              'rgba(102,153,255,0.5)',\n\n    /**\n     * Color of controlling corners of an object (when it's active and transparentCorners false)\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    cornerStrokeColor:        null,\n\n    /**\n     * Specify style of control, 'rect' or 'circle'\n     * @since 1.6.2\n     * @type String\n     */\n    cornerStyle:          'rect',\n\n    /**\n     * Array specifying dash pattern of an object's control (hasBorder must be true)\n     * @since 1.6.2\n     * @type Array\n     */\n    cornerDashArray:          null,\n\n    /**\n     * When true, this object will use center point as the origin of transformation\n     * when being scaled via the controls.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredScaling:          false,\n\n    /**\n     * When true, this object will use center point as the origin of transformation\n     * when being rotated via the controls.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredRotation:         true,\n\n    /**\n     * Color of object's fill\n     * takes css colors https://www.w3.org/TR/css-color-3/\n     * @type String\n     * @default\n     */\n    fill:                     'rgb(0,0,0)',\n\n    /**\n     * Fill rule used to fill an object\n     * accepted values are nonzero, evenodd\n     * <b>Backwards incompatibility note:</b> This property was used for setting globalCompositeOperation until v1.4.12 (use `fabric.Object#globalCompositeOperation` instead)\n     * @type String\n     * @default\n     */\n    fillRule:                 'nonzero',\n\n    /**\n     * Composite rule used for canvas globalCompositeOperation\n     * @type String\n     * @default\n     */\n    globalCompositeOperation: 'source-over',\n\n    /**\n     * Background color of an object.\n     * takes css colors https://www.w3.org/TR/css-color-3/\n     * @type String\n     * @default\n     */\n    backgroundColor:          '',\n\n    /**\n     * Selection Background color of an object. colored layer behind the object when it is active.\n     * does not mix good with globalCompositeOperation methods.\n     * @type String\n     * @default\n     */\n    selectionBackgroundColor:          '',\n\n    /**\n     * When defined, an object is rendered via stroke and this property specifies its color\n     * takes css colors https://www.w3.org/TR/css-color-3/\n     * @type String\n     * @default\n     */\n    stroke:                   null,\n\n    /**\n     * Width of a stroke used to render this object\n     * @type Number\n     * @default\n     */\n    strokeWidth:              1,\n\n    /**\n     * Array specifying dash pattern of an object's stroke (stroke must be defined)\n     * @type Array\n     */\n    strokeDashArray:          null,\n\n    /**\n     * Line offset of an object's stroke\n     * @type Number\n     * @default\n     */\n    strokeDashOffset: 0,\n\n    /**\n     * Line endings style of an object's stroke (one of \"butt\", \"round\", \"square\")\n     * @type String\n     * @default\n     */\n    strokeLineCap:            'butt',\n\n    /**\n     * Corner style of an object's stroke (one of \"bevil\", \"round\", \"miter\")\n     * @type String\n     * @default\n     */\n    strokeLineJoin:           'miter',\n\n    /**\n     * Maximum miter length (used for strokeLineJoin = \"miter\") of an object's stroke\n     * @type Number\n     * @default\n     */\n    strokeMiterLimit:         4,\n\n    /**\n     * Shadow object representing shadow of this shape\n     * @type fabric.Shadow\n     * @default\n     */\n    shadow:                   null,\n\n    /**\n     * Opacity of object's controlling borders when object is active and moving\n     * @type Number\n     * @default\n     */\n    borderOpacityWhenMoving:  0.4,\n\n    /**\n     * Scale factor of object's controlling borders\n     * bigger number will make a thicker border\n     * border is 1, so this is basically a border tickness\n     * since there is no way to change the border itself.\n     * @type Number\n     * @default\n     */\n    borderScaleFactor:        1,\n\n    /**\n     * Transform matrix (similar to SVG's transform matrix)\n     * This property has been depreacted. Since caching and and qrDecompose this\n     * property can be handled with the standard top,left,scaleX,scaleY,angle and skewX.\n     * A documentation example on how to parse and merge a transformMatrix will be provided before\n     * completely removing it in fabric 4.0\n     * If you are starting a project now, DO NOT use it.\n     * @deprecated since 3.2.0\n     * @type Array\n     */\n    transformMatrix:          null,\n\n    /**\n     * Minimum allowed scale value of an object\n     * @type Number\n     * @default\n     */\n    minScaleLimit:            0,\n\n    /**\n     * When set to `false`, an object can not be selected for modification (using either point-click-based or group-based selection).\n     * But events still fire on it.\n     * @type Boolean\n     * @default\n     */\n    selectable:               true,\n\n    /**\n     * When set to `false`, an object can not be a target of events. All events propagate through it. Introduced in v1.3.4\n     * @type Boolean\n     * @default\n     */\n    evented:                  true,\n\n    /**\n     * When set to `false`, an object is not rendered on canvas\n     * @type Boolean\n     * @default\n     */\n    visible:                  true,\n\n    /**\n     * When set to `false`, object's controls are not displayed and can not be used to manipulate object\n     * @type Boolean\n     * @default\n     */\n    hasControls:              true,\n\n    /**\n     * When set to `false`, object's controlling borders are not rendered\n     * @type Boolean\n     * @default\n     */\n    hasBorders:               true,\n\n    /**\n     * When set to `false`, object's controlling rotating point will not be visible or selectable\n     * @type Boolean\n     * @default\n     */\n    hasRotatingPoint:         true,\n\n    /**\n     * Offset for object's controlling rotating point (when enabled via `hasRotatingPoint`)\n     * @type Number\n     * @default\n     */\n    rotatingPointOffset:      40,\n\n    /**\n     * When set to `true`, objects are \"found\" on canvas on per-pixel basis rather than according to bounding box\n     * @type Boolean\n     * @default\n     */\n    perPixelTargetFind:       false,\n\n    /**\n     * When `false`, default object's values are not included in its serialization\n     * @type Boolean\n     * @default\n     */\n    includeDefaultValues:     true,\n\n    /**\n     * Function that determines clipping of an object (context is passed as a first argument).\n     * If you are using code minification, ctx argument can be minified/manglied you should use\n     * as a workaround `var ctx = arguments[0];` in the function;\n     * Note that context origin is at the object's center point (not left/top corner)\n     * @deprecated since 2.0.0\n     * @type Function\n     */\n    clipTo:                   null,\n\n    /**\n     * When `true`, object horizontal movement is locked\n     * @type Boolean\n     * @default\n     */\n    lockMovementX:            false,\n\n    /**\n     * When `true`, object vertical movement is locked\n     * @type Boolean\n     * @default\n     */\n    lockMovementY:            false,\n\n    /**\n     * When `true`, object rotation is locked\n     * @type Boolean\n     * @default\n     */\n    lockRotation:             false,\n\n    /**\n     * When `true`, object horizontal scaling is locked\n     * @type Boolean\n     * @default\n     */\n    lockScalingX:             false,\n\n    /**\n     * When `true`, object vertical scaling is locked\n     * @type Boolean\n     * @default\n     */\n    lockScalingY:             false,\n\n    /**\n     * When `true`, object non-uniform scaling is locked\n     * @type Boolean\n     * @default\n     */\n    lockUniScaling:           false,\n\n    /**\n     * When `true`, object horizontal skewing is locked\n     * @type Boolean\n     * @default\n     */\n    lockSkewingX:             false,\n\n    /**\n     * When `true`, object vertical skewing is locked\n     * @type Boolean\n     * @default\n     */\n    lockSkewingY:             false,\n\n    /**\n     * When `true`, object cannot be flipped by scaling into negative values\n     * @type Boolean\n     * @default\n     */\n    lockScalingFlip:          false,\n\n    /**\n     * When `true`, object is not exported in OBJECT/JSON\n     * @since 1.6.3\n     * @type Boolean\n     * @default\n     */\n    excludeFromExport:        false,\n\n    /**\n     * When `true`, object is cached on an additional canvas.\n     * When `false`, object is not cached unless necessary ( clipPath )\n     * default to true\n     * @since 1.7.0\n     * @type Boolean\n     * @default true\n     */\n    objectCaching:            objectCaching,\n\n    /**\n     * When `true`, object properties are checked for cache invalidation. In some particular\n     * situation you may want this to be disabled ( spray brush, very big, groups)\n     * or if your application does not allow you to modify properties for groups child you want\n     * to disable it for groups.\n     * default to false\n     * since 1.7.0\n     * @type Boolean\n     * @default false\n     */\n    statefullCache:            false,\n\n    /**\n     * When `true`, cache does not get updated during scaling. The picture will get blocky if scaled\n     * too much and will be redrawn with correct details at the end of scaling.\n     * this setting is performance and application dependant.\n     * default to true\n     * since 1.7.0\n     * @type Boolean\n     * @default true\n     */\n    noScaleCache:              true,\n\n    /**\n     * When `false`, the stoke width will scale with the object.\n     * When `true`, the stroke will always match the exact pixel size entered for stroke width.\n     * default to false\n     * @since 2.6.0\n     * @type Boolean\n     * @default false\n     * @type Boolean\n     * @default false\n     */\n    strokeUniform:              false,\n\n    /**\n     * When set to `true`, object's cache will be rerendered next render call.\n     * since 1.7.0\n     * @type Boolean\n     * @default true\n     */\n    dirty:                true,\n\n    /**\n     * keeps the value of the last hovered corner during mouse move.\n     * 0 is no corner, or 'mt', 'ml', 'mtr' etc..\n     * It should be private, but there is no harm in using it as\n     * a read-only property.\n     * @type number|string|any\n     * @default 0\n     */\n    __corner: 0,\n\n    /**\n     * Determines if the fill or the stroke is drawn first (one of \"fill\" or \"stroke\")\n     * @type String\n     * @default\n     */\n    paintFirst:           'fill',\n\n    /**\n     * List of properties to consider when checking if state\n     * of an object is changed (fabric.Object#hasStateChanged)\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: (\n      'top left width height scaleX scaleY flipX flipY originX originY transformMatrix ' +\n      'stroke strokeWidth strokeDashArray strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit ' +\n      'angle opacity fill globalCompositeOperation shadow clipTo visible backgroundColor ' +\n      'skewX skewY fillRule paintFirst clipPath strokeUniform'\n    ).split(' '),\n\n    /**\n     * List of properties to consider when checking if cache needs refresh\n     * Those properties are checked by statefullCache ON ( or lazy mode if we want ) or from single\n     * calls to Object.set(key, value). If the key is in this list, the object is marked as dirty\n     * and refreshed at the next render\n     * @type Array\n     */\n    cacheProperties: (\n      'fill stroke strokeWidth strokeDashArray width height paintFirst strokeUniform' +\n      ' strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit backgroundColor clipPath'\n    ).split(' '),\n\n    /**\n     * a fabricObject that, without stroke define a clipping area with their shape. filled in black\n     * the clipPath object gets used when the object has rendered, and the context is placed in the center\n     * of the object cacheCanvas.\n     * If you want 0,0 of a clipPath to align with an object center, use clipPath.originX/Y to 'center'\n     * @type fabric.Object\n     */\n    clipPath: undefined,\n\n    /**\n     * Meaningful ONLY when the object is used as clipPath.\n     * if true, the clipPath will make the object clip to the outside of the clipPath\n     * since 2.4.0\n     * @type boolean\n     * @default false\n     */\n    inverted: false,\n\n    /**\n     * Meaningful ONLY when the object is used as clipPath.\n     * if true, the clipPath will have its top and left relative to canvas, and will\n     * not be influenced by the object transform. This will make the clipPath relative\n     * to the canvas, but clipping just a particular object.\n     * WARNING this is beta, this feature may change or be renamed.\n     * since 2.4.0\n     * @type boolean\n     * @default false\n     */\n    absolutePositioned: false,\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      if (options) {\n        this.setOptions(options);\n      }\n    },\n\n    /**\n     * Create a the canvas used to keep the cached copy of the object\n     * @private\n     */\n    _createCacheCanvas: function() {\n      this._cacheProperties = {};\n      this._cacheCanvas = fabric.util.createCanvasElement();\n      this._cacheContext = this._cacheCanvas.getContext('2d');\n      this._updateCacheCanvas();\n      // if canvas gets created, is empty, so dirty.\n      this.dirty = true;\n    },\n\n    /**\n     * Limit the cache dimensions so that X * Y do not cross fabric.perfLimitSizeTotal\n     * and each side do not cross fabric.cacheSideLimit\n     * those numbers are configurable so that you can get as much detail as you want\n     * making bargain with performances.\n     * @param {Object} dims\n     * @param {Object} dims.width width of canvas\n     * @param {Object} dims.height height of canvas\n     * @param {Object} dims.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @param {Object} dims.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     * @return {Object}.width width of canvas\n     * @return {Object}.height height of canvas\n     * @return {Object}.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @return {Object}.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     */\n    _limitCacheSize: function(dims) {\n      var perfLimitSizeTotal = fabric.perfLimitSizeTotal,\n          width = dims.width, height = dims.height,\n          max = fabric.maxCacheSideLimit, min = fabric.minCacheSideLimit;\n      if (width <= max && height <= max && width * height <= perfLimitSizeTotal) {\n        if (width < min) {\n          dims.width = min;\n        }\n        if (height < min) {\n          dims.height = min;\n        }\n        return dims;\n      }\n      var ar = width / height, limitedDims = fabric.util.limitDimsByArea(ar, perfLimitSizeTotal),\n          capValue = fabric.util.capValue,\n          x = capValue(min, limitedDims.x, max),\n          y = capValue(min, limitedDims.y, max);\n      if (width > x) {\n        dims.zoomX /= width / x;\n        dims.width = x;\n        dims.capped = true;\n      }\n      if (height > y) {\n        dims.zoomY /= height / y;\n        dims.height = y;\n        dims.capped = true;\n      }\n      return dims;\n    },\n\n    /**\n     * Return the dimension and the zoom level needed to create a cache canvas\n     * big enough to host the object to be cached.\n     * @private\n     * @return {Object}.x width of object to be cached\n     * @return {Object}.y height of object to be cached\n     * @return {Object}.width width of canvas\n     * @return {Object}.height height of canvas\n     * @return {Object}.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @return {Object}.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     */\n    _getCacheCanvasDimensions: function() {\n      var objectScale = this.getTotalObjectScaling(),\n          // caculate dimensions without skewing\n          dim = this._getTransformedDimensions(0, 0),\n          neededX = dim.x * objectScale.scaleX / this.scaleX,\n          neededY = dim.y * objectScale.scaleY / this.scaleY;\n      return {\n        // for sure this ALIASING_LIMIT is slightly creating problem\n        // in situation in which the cache canvas gets an upper limit\n        // also objectScale contains already scaleX and scaleY\n        width: neededX + ALIASING_LIMIT,\n        height: neededY + ALIASING_LIMIT,\n        zoomX: objectScale.scaleX,\n        zoomY: objectScale.scaleY,\n        x: neededX,\n        y: neededY\n      };\n    },\n\n    /**\n     * Update width and height of the canvas for cache\n     * returns true or false if canvas needed resize.\n     * @private\n     * @return {Boolean} true if the canvas has been resized\n     */\n    _updateCacheCanvas: function() {\n      var targetCanvas = this.canvas;\n      if (this.noScaleCache && targetCanvas && targetCanvas._currentTransform) {\n        var target = targetCanvas._currentTransform.target,\n            action = targetCanvas._currentTransform.action;\n        if (this === target && action.slice && action.slice(0, 5) === 'scale') {\n          return false;\n        }\n      }\n      var canvas = this._cacheCanvas,\n          dims = this._limitCacheSize(this._getCacheCanvasDimensions()),\n          minCacheSize = fabric.minCacheSideLimit,\n          width = dims.width, height = dims.height, drawingWidth, drawingHeight,\n          zoomX = dims.zoomX, zoomY = dims.zoomY,\n          dimensionsChanged = width !== this.cacheWidth || height !== this.cacheHeight,\n          zoomChanged = this.zoomX !== zoomX || this.zoomY !== zoomY,\n          shouldRedraw = dimensionsChanged || zoomChanged,\n          additionalWidth = 0, additionalHeight = 0, shouldResizeCanvas = false;\n      if (dimensionsChanged) {\n        var canvasWidth = this._cacheCanvas.width,\n            canvasHeight = this._cacheCanvas.height,\n            sizeGrowing = width > canvasWidth || height > canvasHeight,\n            sizeShrinking = (width < canvasWidth * 0.9 || height < canvasHeight * 0.9) &&\n              canvasWidth > minCacheSize && canvasHeight > minCacheSize;\n        shouldResizeCanvas = sizeGrowing || sizeShrinking;\n        if (sizeGrowing && !dims.capped && (width > minCacheSize || height > minCacheSize)) {\n          additionalWidth = width * 0.1;\n          additionalHeight = height * 0.1;\n        }\n      }\n      if (shouldRedraw) {\n        if (shouldResizeCanvas) {\n          canvas.width = Math.ceil(width + additionalWidth);\n          canvas.height = Math.ceil(height + additionalHeight);\n        }\n        else {\n          this._cacheContext.setTransform(1, 0, 0, 1, 0, 0);\n          this._cacheContext.clearRect(0, 0, canvas.width, canvas.height);\n        }\n        drawingWidth = dims.x / 2;\n        drawingHeight = dims.y / 2;\n        this.cacheTranslationX = Math.round(canvas.width / 2 - drawingWidth) + drawingWidth;\n        this.cacheTranslationY = Math.round(canvas.height / 2 - drawingHeight) + drawingHeight;\n        this.cacheWidth = width;\n        this.cacheHeight = height;\n        this._cacheContext.translate(this.cacheTranslationX, this.cacheTranslationY);\n        this._cacheContext.scale(zoomX, zoomY);\n        this.zoomX = zoomX;\n        this.zoomY = zoomY;\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Sets object's properties from options\n     * @param {Object} [options] Options object\n     */\n    setOptions: function(options) {\n      this._setOptions(options);\n      this._initGradient(options.fill, 'fill');\n      this._initGradient(options.stroke, 'stroke');\n      this._initClipping(options);\n      this._initPattern(options.fill, 'fill');\n      this._initPattern(options.stroke, 'stroke');\n    },\n\n    /**\n     * Transforms context when rendering an object\n     * @param {CanvasRenderingContext2D} ctx Context\n     */\n    transform: function(ctx) {\n      var m;\n      if (this.group && !this.group._transformDone) {\n        m = this.calcTransformMatrix();\n      }\n      else {\n        m = this.calcOwnMatrix();\n      }\n      ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n    },\n\n    /**\n     * Returns an object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,\n\n          object = {\n            type:                     this.type,\n            version:                  fabric.version,\n            originX:                  this.originX,\n            originY:                  this.originY,\n            left:                     toFixed(this.left, NUM_FRACTION_DIGITS),\n            top:                      toFixed(this.top, NUM_FRACTION_DIGITS),\n            width:                    toFixed(this.width, NUM_FRACTION_DIGITS),\n            height:                   toFixed(this.height, NUM_FRACTION_DIGITS),\n            fill:                     (this.fill && this.fill.toObject) ? this.fill.toObject() : this.fill,\n            stroke:                   (this.stroke && this.stroke.toObject) ? this.stroke.toObject() : this.stroke,\n            strokeWidth:              toFixed(this.strokeWidth, NUM_FRACTION_DIGITS),\n            strokeDashArray:          this.strokeDashArray ? this.strokeDashArray.concat() : this.strokeDashArray,\n            strokeLineCap:            this.strokeLineCap,\n            strokeDashOffset:         this.strokeDashOffset,\n            strokeLineJoin:           this.strokeLineJoin,\n            // TODO: add this before release\n            // strokeUniform:            this.strokeUniform,\n            strokeMiterLimit:         toFixed(this.strokeMiterLimit, NUM_FRACTION_DIGITS),\n            scaleX:                   toFixed(this.scaleX, NUM_FRACTION_DIGITS),\n            scaleY:                   toFixed(this.scaleY, NUM_FRACTION_DIGITS),\n            angle:                    toFixed(this.angle, NUM_FRACTION_DIGITS),\n            flipX:                    this.flipX,\n            flipY:                    this.flipY,\n            opacity:                  toFixed(this.opacity, NUM_FRACTION_DIGITS),\n            shadow:                   (this.shadow && this.shadow.toObject) ? this.shadow.toObject() : this.shadow,\n            visible:                  this.visible,\n            clipTo:                   this.clipTo && String(this.clipTo),\n            backgroundColor:          this.backgroundColor,\n            fillRule:                 this.fillRule,\n            paintFirst:               this.paintFirst,\n            globalCompositeOperation: this.globalCompositeOperation,\n            transformMatrix:          this.transformMatrix ? this.transformMatrix.concat() : null,\n            skewX:                    toFixed(this.skewX, NUM_FRACTION_DIGITS),\n            skewY:                    toFixed(this.skewY, NUM_FRACTION_DIGITS),\n          };\n\n      if (this.clipPath) {\n        object.clipPath = this.clipPath.toObject(propertiesToInclude);\n        object.clipPath.inverted = this.clipPath.inverted;\n        object.clipPath.absolutePositioned = this.clipPath.absolutePositioned;\n      }\n\n      fabric.util.populateWithProperties(this, object, propertiesToInclude);\n      if (!this.includeDefaultValues) {\n        object = this._removeDefaultValues(object);\n      }\n\n      return object;\n    },\n\n    /**\n     * Returns (dataless) object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toDatalessObject: function(propertiesToInclude) {\n      // will be overwritten by subclasses\n      return this.toObject(propertiesToInclude);\n    },\n\n    /**\n     * @private\n     * @param {Object} object\n     */\n    _removeDefaultValues: function(object) {\n      var prototype = fabric.util.getKlass(object.type).prototype,\n          stateProperties = prototype.stateProperties;\n      stateProperties.forEach(function(prop) {\n        if (prop === 'left' || prop === 'top') {\n          return;\n        }\n        if (object[prop] === prototype[prop]) {\n          delete object[prop];\n        }\n        var isArray = Object.prototype.toString.call(object[prop]) === '[object Array]' &&\n                      Object.prototype.toString.call(prototype[prop]) === '[object Array]';\n\n        // basically a check for [] === []\n        if (isArray && object[prop].length === 0 && prototype[prop].length === 0) {\n          delete object[prop];\n        }\n      });\n\n      return object;\n    },\n\n    /**\n     * Returns a string representation of an instance\n     * @return {String}\n     */\n    toString: function() {\n      return '#<fabric.' + capitalize(this.type) + '>';\n    },\n\n    /**\n     * Return the object scale factor counting also the group scaling\n     * @return {Object} object with scaleX and scaleY properties\n     */\n    getObjectScaling: function() {\n      var options = fabric.util.qrDecompose(this.calcTransformMatrix());\n      return { scaleX: Math.abs(options.scaleX), scaleY: Math.abs(options.scaleY) };\n    },\n\n    /**\n     * Return the object scale factor counting also the group scaling, zoom and retina\n     * @return {Object} object with scaleX and scaleY properties\n     */\n    getTotalObjectScaling: function() {\n      var scale = this.getObjectScaling(), scaleX = scale.scaleX, scaleY = scale.scaleY;\n      if (this.canvas) {\n        var zoom = this.canvas.getZoom();\n        var retina = this.canvas.getRetinaScaling();\n        scaleX *= zoom * retina;\n        scaleY *= zoom * retina;\n      }\n      return { scaleX: scaleX, scaleY: scaleY };\n    },\n\n    /**\n     * Return the object opacity counting also the group property\n     * @return {Number}\n     */\n    getObjectOpacity: function() {\n      var opacity = this.opacity;\n      if (this.group) {\n        opacity *= this.group.getObjectOpacity();\n      }\n      return opacity;\n    },\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     * @return {fabric.Object} thisArg\n     */\n    _set: function(key, value) {\n      var shouldConstrainValue = (key === 'scaleX' || key === 'scaleY'),\n          isChanged = this[key] !== value, groupNeedsUpdate = false;\n\n      if (shouldConstrainValue) {\n        value = this._constrainScale(value);\n      }\n      if (key === 'scaleX' && value < 0) {\n        this.flipX = !this.flipX;\n        value *= -1;\n      }\n      else if (key === 'scaleY' && value < 0) {\n        this.flipY = !this.flipY;\n        value *= -1;\n      }\n      else if (key === 'shadow' && value && !(value instanceof fabric.Shadow)) {\n        value = new fabric.Shadow(value);\n      }\n      else if (key === 'dirty' && this.group) {\n        this.group.set('dirty', value);\n      }\n\n      this[key] = value;\n\n      if (isChanged) {\n        groupNeedsUpdate = this.group && this.group.isOnACache();\n        if (this.cacheProperties.indexOf(key) > -1) {\n          this.dirty = true;\n          groupNeedsUpdate && this.group.set('dirty', true);\n        }\n        else if (groupNeedsUpdate && this.stateProperties.indexOf(key) > -1) {\n          this.group.set('dirty', true);\n        }\n      }\n\n      return this;\n    },\n\n    /**\n     * This callback function is called by the parent group of an object every\n     * time a non-delegated property changes on the group. It is passed the key\n     * and value as parameters. Not adding in this function's signature to avoid\n     * Travis build error about unused variables.\n     */\n    setOnGroup: function() {\n      // implemented by sub-classes, as needed.\n    },\n\n    /**\n     * Retrieves viewportTransform from Object's canvas if possible\n     * @method getViewportTransform\n     * @memberOf fabric.Object.prototype\n     * @return {Array}\n     */\n    getViewportTransform: function() {\n      if (this.canvas && this.canvas.viewportTransform) {\n        return this.canvas.viewportTransform;\n      }\n      return fabric.iMatrix.concat();\n    },\n\n    /*\n     * @private\n     * return if the object would be visible in rendering\n     * @memberOf fabric.Object.prototype\n     * @return {Boolean}\n     */\n    isNotVisible: function() {\n      return this.opacity === 0 ||\n        (this.width === 0 && this.height === 0 && this.strokeWidth === 0) ||\n        !this.visible;\n    },\n\n    /**\n     * Renders an object on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    render: function(ctx) {\n      // do not render if width/height are zeros or object is not visible\n      if (this.isNotVisible()) {\n        return;\n      }\n      if (this.canvas && this.canvas.skipOffscreen && !this.group && !this.isOnScreen()) {\n        return;\n      }\n      ctx.save();\n      this._setupCompositeOperation(ctx);\n      this.drawSelectionBackground(ctx);\n      this.transform(ctx);\n      this._setOpacity(ctx);\n      this._setShadow(ctx, this);\n      if (this.transformMatrix) {\n        ctx.transform.apply(ctx, this.transformMatrix);\n      }\n      this.clipTo && fabric.util.clipContext(this, ctx);\n      if (this.shouldCache()) {\n        this.renderCache();\n        this.drawCacheOnCanvas(ctx);\n      }\n      else {\n        this._removeCacheCanvas();\n        this.dirty = false;\n        this.drawObject(ctx);\n        if (this.objectCaching && this.statefullCache) {\n          this.saveState({ propertySet: 'cacheProperties' });\n        }\n      }\n      this.clipTo && ctx.restore();\n      ctx.restore();\n    },\n\n    renderCache: function(options) {\n      options = options || {};\n      if (!this._cacheCanvas) {\n        this._createCacheCanvas();\n      }\n      if (this.isCacheDirty()) {\n        this.statefullCache && this.saveState({ propertySet: 'cacheProperties' });\n        this.drawObject(this._cacheContext, options.forClipping);\n        this.dirty = false;\n      }\n    },\n\n    /**\n     * Remove cacheCanvas and its dimensions from the objects\n     */\n    _removeCacheCanvas: function() {\n      this._cacheCanvas = null;\n      this.cacheWidth = 0;\n      this.cacheHeight = 0;\n    },\n\n    /**\n     * return true if the object will draw a stroke\n     * Does not consider text styles. This is just a shortcut used at rendering time\n     * We want it to be an aproximation and be fast.\n     * wrote to avoid extra caching, it has to return true when stroke happens,\n     * can guess when it will not happen at 100% chance, does not matter if it misses\n     * some use case where the stroke is invisible.\n     * @since 3.0.0\n     * @returns Boolean\n     */\n    hasStroke: function() {\n      return this.stroke && this.stroke !== 'transparent' && this.strokeWidth !== 0;\n    },\n\n    /**\n     * return true if the object will draw a fill\n     * Does not consider text styles. This is just a shortcut used at rendering time\n     * We want it to be an aproximation and be fast.\n     * wrote to avoid extra caching, it has to return true when fill happens,\n     * can guess when it will not happen at 100% chance, does not matter if it misses\n     * some use case where the fill is invisible.\n     * @since 3.0.0\n     * @returns Boolean\n     */\n    hasFill: function() {\n      return this.fill && this.fill !== 'transparent';\n    },\n\n    /**\n     * When set to `true`, force the object to have its own cache, even if it is inside a group\n     * it may be needed when your object behave in a particular way on the cache and always needs\n     * its own isolated canvas to render correctly.\n     * Created to be overridden\n     * since 1.7.12\n     * @returns Boolean\n     */\n    needsItsOwnCache: function() {\n      if (this.paintFirst === 'stroke' &&\n        this.hasFill() && this.hasStroke() && typeof this.shadow === 'object') {\n        return true;\n      }\n      if (this.clipPath) {\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * objectCaching is a global flag, wins over everything\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group outside is cached.\n     * Read as: cache if is needed, or if the feature is enabled but we are not already caching.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      this.ownCaching = this.needsItsOwnCache() || (\n        this.objectCaching &&\n        (!this.group || !this.group.isOnACache())\n      );\n      return this.ownCaching;\n    },\n\n    /**\n     * Check if this object or a child object will cast a shadow\n     * used by Group.shouldCache to know if child has a shadow recursively\n     * @return {Boolean}\n     */\n    willDrawShadow: function() {\n      return !!this.shadow && (this.shadow.offsetX !== 0 || this.shadow.offsetY !== 0);\n    },\n\n    /**\n     * Execute the drawing operation for an object clipPath\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawClipPathOnCache: function(ctx) {\n      var path = this.clipPath;\n      ctx.save();\n      // DEBUG: uncomment this line, comment the following\n      // ctx.globalAlpha = 0.4\n      if (path.inverted) {\n        ctx.globalCompositeOperation = 'destination-out';\n      }\n      else {\n        ctx.globalCompositeOperation = 'destination-in';\n      }\n      //ctx.scale(1 / 2, 1 / 2);\n      if (path.absolutePositioned) {\n        var m = fabric.util.invertTransform(this.calcTransformMatrix());\n        ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n      }\n      path.transform(ctx);\n      ctx.scale(1 / path.zoomX, 1 / path.zoomY);\n      ctx.drawImage(path._cacheCanvas, -path.cacheTranslationX, -path.cacheTranslationY);\n      ctx.restore();\n    },\n\n    /**\n     * Execute the drawing operation for an object on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawObject: function(ctx, forClipping) {\n      var originalFill = this.fill, originalStroke = this.stroke;\n      if (forClipping) {\n        this.fill = 'black';\n        this.stroke = '';\n        this._setClippingProperties(ctx);\n      }\n      else {\n        this._renderBackground(ctx);\n        this._setStrokeStyles(ctx, this);\n        this._setFillStyles(ctx, this);\n      }\n      this._render(ctx);\n      this._drawClipPath(ctx);\n      this.fill = originalFill;\n      this.stroke = originalStroke;\n    },\n\n    _drawClipPath: function(ctx) {\n      var path = this.clipPath;\n      if (!path) { return; }\n      // needed to setup a couple of variables\n      // path canvas gets overridden with this one.\n      // TODO find a better solution?\n      path.canvas = this.canvas;\n      path.shouldCache();\n      path._transformDone = true;\n      path.renderCache({ forClipping: true });\n      this.drawClipPathOnCache(ctx);\n    },\n\n    /**\n     * Paint the cached copy of the object on the target context.\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawCacheOnCanvas: function(ctx) {\n      ctx.scale(1 / this.zoomX, 1 / this.zoomY);\n      ctx.drawImage(this._cacheCanvas, -this.cacheTranslationX, -this.cacheTranslationY);\n    },\n\n    /**\n     * Check if cache is dirty\n     * @param {Boolean} skipCanvas skip canvas checks because this object is painted\n     * on parent canvas.\n     */\n    isCacheDirty: function(skipCanvas) {\n      if (this.isNotVisible()) {\n        return false;\n      }\n      if (this._cacheCanvas && !skipCanvas && this._updateCacheCanvas()) {\n        // in this case the context is already cleared.\n        return true;\n      }\n      else {\n        if (this.dirty ||\n          (this.clipPath && this.clipPath.absolutePositioned) ||\n          (this.statefullCache && this.hasStateChanged('cacheProperties'))\n        ) {\n          if (this._cacheCanvas && !skipCanvas) {\n            var width = this.cacheWidth / this.zoomX;\n            var height = this.cacheHeight / this.zoomY;\n            this._cacheContext.clearRect(-width / 2, -height / 2, width, height);\n          }\n          return true;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Draws a background for the object big as its untransformed dimensions\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderBackground: function(ctx) {\n      if (!this.backgroundColor) {\n        return;\n      }\n      var dim = this._getNonTransformedDimensions();\n      ctx.fillStyle = this.backgroundColor;\n\n      ctx.fillRect(\n        -dim.x / 2,\n        -dim.y / 2,\n        dim.x,\n        dim.y\n      );\n      // if there is background color no other shadows\n      // should be casted\n      this._removeShadow(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _setOpacity: function(ctx) {\n      if (this.group && !this.group._transformDone) {\n        ctx.globalAlpha = this.getObjectOpacity();\n      }\n      else {\n        ctx.globalAlpha *= this.opacity;\n      }\n    },\n\n    _setStrokeStyles: function(ctx, decl) {\n      if (decl.stroke) {\n        ctx.lineWidth = decl.strokeWidth;\n        ctx.lineCap = decl.strokeLineCap;\n        ctx.lineDashOffset = decl.strokeDashOffset;\n        ctx.lineJoin = decl.strokeLineJoin;\n        ctx.miterLimit = decl.strokeMiterLimit;\n        ctx.strokeStyle = decl.stroke.toLive\n          ? decl.stroke.toLive(ctx, this)\n          : decl.stroke;\n      }\n    },\n\n    _setFillStyles: function(ctx, decl) {\n      if (decl.fill) {\n        ctx.fillStyle = decl.fill.toLive\n          ? decl.fill.toLive(ctx, this)\n          : decl.fill;\n      }\n    },\n\n    _setClippingProperties: function(ctx) {\n      ctx.globalAlpha = 1;\n      ctx.strokeStyle = 'transparent';\n      ctx.fillStyle = '#000000';\n    },\n\n    /**\n     * @private\n     * Sets line dash\n     * @param {CanvasRenderingContext2D} ctx Context to set the dash line on\n     * @param {Array} dashArray array representing dashes\n     * @param {Function} alternative function to call if browser does not support lineDash\n     */\n    _setLineDash: function(ctx, dashArray, alternative) {\n      if (!dashArray || dashArray.length === 0) {\n        return;\n      }\n      // Spec requires the concatenation of two copies the dash list when the number of elements is odd\n      if (1 & dashArray.length) {\n        dashArray.push.apply(dashArray, dashArray);\n      }\n      if (supportsLineDash) {\n        ctx.setLineDash(dashArray);\n      }\n      else {\n        alternative && alternative(ctx);\n      }\n    },\n\n    /**\n     * Renders controls and borders for the object\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} [styleOverride] properties to override the object style\n     */\n    _renderControls: function(ctx, styleOverride) {\n      var vpt = this.getViewportTransform(),\n          matrix = this.calcTransformMatrix(),\n          options, drawBorders, drawControls;\n      styleOverride = styleOverride || { };\n      drawBorders = typeof styleOverride.hasBorders !== 'undefined' ? styleOverride.hasBorders : this.hasBorders;\n      drawControls = typeof styleOverride.hasControls !== 'undefined' ? styleOverride.hasControls : this.hasControls;\n      matrix = fabric.util.multiplyTransformMatrices(vpt, matrix);\n      options = fabric.util.qrDecompose(matrix);\n      ctx.save();\n      ctx.translate(options.translateX, options.translateY);\n      ctx.lineWidth = 1 * this.borderScaleFactor;\n      if (!this.group) {\n        ctx.globalAlpha = this.isMoving ? this.borderOpacityWhenMoving : 1;\n      }\n      if (styleOverride.forActiveSelection) {\n        ctx.rotate(degreesToRadians(options.angle));\n        drawBorders && this.drawBordersInGroup(ctx, options, styleOverride);\n      }\n      else {\n        ctx.rotate(degreesToRadians(this.angle));\n        drawBorders && this.drawBorders(ctx, styleOverride);\n      }\n      drawControls && this.drawControls(ctx, styleOverride);\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _setShadow: function(ctx) {\n      if (!this.shadow) {\n        return;\n      }\n\n      var shadow = this.shadow, canvas = this.canvas, scaling,\n          multX = (canvas && canvas.viewportTransform[0]) || 1,\n          multY = (canvas && canvas.viewportTransform[3]) || 1;\n      if (shadow.nonScaling) {\n        scaling = { scaleX: 1, scaleY: 1 };\n      }\n      else {\n        scaling = this.getObjectScaling();\n      }\n      if (canvas && canvas._isRetinaScaling()) {\n        multX *= fabric.devicePixelRatio;\n        multY *= fabric.devicePixelRatio;\n      }\n      ctx.shadowColor = shadow.color;\n      ctx.shadowBlur = shadow.blur * fabric.browserShadowBlurConstant *\n        (multX + multY) * (scaling.scaleX + scaling.scaleY) / 4;\n      ctx.shadowOffsetX = shadow.offsetX * multX * scaling.scaleX;\n      ctx.shadowOffsetY = shadow.offsetY * multY * scaling.scaleY;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _removeShadow: function(ctx) {\n      if (!this.shadow) {\n        return;\n      }\n\n      ctx.shadowColor = '';\n      ctx.shadowBlur = ctx.shadowOffsetX = ctx.shadowOffsetY = 0;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} filler fabric.Pattern or fabric.Gradient\n     * @return {Object} offset.offsetX offset for text rendering\n     * @return {Object} offset.offsetY offset for text rendering\n     */\n    _applyPatternGradientTransform: function(ctx, filler) {\n      if (!filler || !filler.toLive) {\n        return { offsetX: 0, offsetY: 0 };\n      }\n      var t = filler.gradientTransform || filler.patternTransform;\n      var offsetX = -this.width / 2 + filler.offsetX || 0,\n          offsetY = -this.height / 2 + filler.offsetY || 0;\n\n      if (filler.gradientUnits === 'percentage') {\n        ctx.transform(this.width, 0, 0, this.height, offsetX, offsetY);\n      }\n      else {\n        ctx.transform(1, 0, 0, 1, offsetX, offsetY);\n      }\n      if (t) {\n        ctx.transform(t[0], t[1], t[2], t[3], t[4], t[5]);\n      }\n      return { offsetX: offsetX, offsetY: offsetY };\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderPaintInOrder: function(ctx) {\n      if (this.paintFirst === 'stroke') {\n        this._renderStroke(ctx);\n        this._renderFill(ctx);\n      }\n      else {\n        this._renderFill(ctx);\n        this._renderStroke(ctx);\n      }\n    },\n\n    /**\n     * @private\n     * function that actually render something on the context.\n     * empty here to allow Obects to work on tests to benchmark fabric functionalites\n     * not related to rendering\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(/* ctx */) {\n\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderFill: function(ctx) {\n      if (!this.fill) {\n        return;\n      }\n\n      ctx.save();\n      this._applyPatternGradientTransform(ctx, this.fill);\n      if (this.fillRule === 'evenodd') {\n        ctx.fill('evenodd');\n      }\n      else {\n        ctx.fill();\n      }\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderStroke: function(ctx) {\n      if (!this.stroke || this.strokeWidth === 0) {\n        return;\n      }\n\n      if (this.shadow && !this.shadow.affectStroke) {\n        this._removeShadow(ctx);\n      }\n\n      ctx.save();\n      if (this.strokeUniform && this.group) {\n        var scaling = this.getObjectScaling();\n        ctx.scale(1 / scaling.scaleX, 1 / scaling.scaleY);\n      }\n      else if (this.strokeUniform) {\n        ctx.scale(1 / this.scaleX, 1 / this.scaleY);\n      }\n      this._setLineDash(ctx, this.strokeDashArray, this._renderDashedStroke);\n      if (this.stroke.toLive && this.stroke.gradientUnits === 'percentage') {\n        // need to transform gradient in a pattern.\n        // this is a slow process. If you are hitting this codepath, and the object\n        // is not using caching, you should consider switching it on.\n        // we need a canvas as big as the current object caching canvas.\n        this._applyPatternForTransformedGradient(ctx, this.stroke);\n      }\n      else {\n        this._applyPatternGradientTransform(ctx, this.stroke);\n      }\n      ctx.stroke();\n      ctx.restore();\n    },\n\n    /**\n     * This function try to patch the missing gradientTransform on canvas gradients.\n     * transforming a context to transform the gradient, is going to transform the stroke too.\n     * we want to transform the gradient but not the stroke operation, so we create\n     * a transformed gradient on a pattern and then we use the pattern instead of the gradient.\n     * this method has drwabacks: is slow, is in low resolution, needs a patch for when the size\n     * is limited.\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {fabric.Gradient} filler a fabric gradient instance\n     */\n    _applyPatternForTransformedGradient: function(ctx, filler) {\n      var dims = this._limitCacheSize(this._getCacheCanvasDimensions()),\n          pCanvas = fabric.util.createCanvasElement(), pCtx, retinaScaling = this.canvas.getRetinaScaling(),\n          width = dims.x / this.scaleX / retinaScaling, height = dims.y / this.scaleY / retinaScaling;\n      pCanvas.width = width;\n      pCanvas.height = height;\n      pCtx = pCanvas.getContext('2d');\n      pCtx.beginPath(); pCtx.moveTo(0, 0); pCtx.lineTo(width, 0); pCtx.lineTo(width, height);\n      pCtx.lineTo(0, height); pCtx.closePath();\n      pCtx.translate(width / 2, height / 2);\n      pCtx.scale(\n        dims.zoomX / this.scaleX / retinaScaling,\n        dims.zoomY / this.scaleY / retinaScaling\n      );\n      this._applyPatternGradientTransform(pCtx, filler);\n      pCtx.fillStyle = filler.toLive(ctx);\n      pCtx.fill();\n      ctx.translate(-this.width / 2 - this.strokeWidth / 2, -this.height / 2 - this.strokeWidth / 2);\n      ctx.scale(\n        retinaScaling * this.scaleX / dims.zoomX,\n        retinaScaling * this.scaleY / dims.zoomY\n      );\n      ctx.strokeStyle = pCtx.createPattern(pCanvas, 'no-repeat');\n    },\n\n    /**\n     * This function is an helper for svg import. it returns the center of the object in the svg\n     * untransformed coordinates\n     * @private\n     * @return {Object} center point from element coordinates\n     */\n    _findCenterFromElement: function() {\n      return { x: this.left + this.width / 2, y: this.top + this.height / 2 };\n    },\n\n    /**\n     * This function is an helper for svg import. it decompose the transformMatrix\n     * and assign properties to object.\n     * untransformed coordinates\n     * @private\n     * @chainable\n     */\n    _assignTransformMatrixProps: function() {\n      if (this.transformMatrix) {\n        var options = fabric.util.qrDecompose(this.transformMatrix);\n        this.flipX = false;\n        this.flipY = false;\n        this.set('scaleX', options.scaleX);\n        this.set('scaleY', options.scaleY);\n        this.angle = options.angle;\n        this.skewX = options.skewX;\n        this.skewY = 0;\n      }\n    },\n\n    /**\n     * This function is an helper for svg import. it removes the transform matrix\n     * and set to object properties that fabricjs can handle\n     * @private\n     * @param {Object} preserveAspectRatioOptions\n     * @return {thisArg}\n     */\n    _removeTransformMatrix: function(preserveAspectRatioOptions) {\n      var center = this._findCenterFromElement();\n      if (this.transformMatrix) {\n        this._assignTransformMatrixProps();\n        center = fabric.util.transformPoint(center, this.transformMatrix);\n      }\n      this.transformMatrix = null;\n      if (preserveAspectRatioOptions) {\n        this.scaleX *= preserveAspectRatioOptions.scaleX;\n        this.scaleY *= preserveAspectRatioOptions.scaleY;\n        this.cropX = preserveAspectRatioOptions.cropX;\n        this.cropY = preserveAspectRatioOptions.cropY;\n        center.x += preserveAspectRatioOptions.offsetLeft;\n        center.y += preserveAspectRatioOptions.offsetTop;\n        this.width = preserveAspectRatioOptions.width;\n        this.height = preserveAspectRatioOptions.height;\n      }\n      this.setPositionByOrigin(center, 'center', 'center');\n    },\n\n    /**\n     * Clones an instance, using a callback method will work for every object.\n     * @param {Function} callback Callback is invoked with a clone as a first argument\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     */\n    clone: function(callback, propertiesToInclude) {\n      var objectForm = this.toObject(propertiesToInclude);\n      if (this.constructor.fromObject) {\n        this.constructor.fromObject(objectForm, callback);\n      }\n      else {\n        fabric.Object._fromObject('Object', objectForm, callback);\n      }\n    },\n\n    /**\n     * Creates an instance of fabric.Image out of an object\n     * could make use of both toDataUrl or toCanvasElement.\n     * @param {Function} callback callback, invoked with an instance as a first argument\n     * @param {Object} [options] for clone as image, passed to toDataURL\n     * @param {String} [options.format=png] The format of the output image. Either \"jpeg\" or \"png\"\n     * @param {Number} [options.quality=1] Quality level (0..1). Only used for jpeg.\n     * @param {Number} [options.multiplier=1] Multiplier to scale by\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 1.6.4\n     * @param {Boolean} [options.withoutTransform] Remove current object transform ( no scale , no angle, no flip, no skew ). Introduced in 2.3.4\n     * @param {Boolean} [options.withoutShadow] Remove current object shadow. Introduced in 2.4.2\n     * @return {fabric.Object} thisArg\n     */\n    cloneAsImage: function(callback, options) {\n      var canvasEl = this.toCanvasElement(options);\n      if (callback) {\n        callback(new fabric.Image(canvasEl));\n      }\n      return this;\n    },\n\n    /**\n     * Converts an object into a HTMLCanvas element\n     * @param {Object} options Options object\n     * @param {Number} [options.multiplier=1] Multiplier to scale by\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 1.6.4\n     * @param {Boolean} [options.withoutTransform] Remove current object transform ( no scale , no angle, no flip, no skew ). Introduced in 2.3.4\n     * @param {Boolean} [options.withoutShadow] Remove current object shadow. Introduced in 2.4.2\n     * @return {HTMLCanvasElement} Returns DOM element <canvas> with the fabric.Object\n     */\n    toCanvasElement: function(options) {\n      options || (options = { });\n\n      var utils = fabric.util, origParams = utils.saveObjectTransform(this),\n          originalGroup = this.group,\n          originalShadow = this.shadow, abs = Math.abs,\n          multiplier = (options.multiplier || 1) * (options.enableRetinaScaling ? fabric.devicePixelRatio : 1);\n      delete this.group;\n      if (options.withoutTransform) {\n        utils.resetObjectTransform(this);\n      }\n      if (options.withoutShadow) {\n        this.shadow = null;\n      }\n\n      var el = fabric.util.createCanvasElement(),\n          // skip canvas zoom and calculate with setCoords now.\n          boundingRect = this.getBoundingRect(true, true),\n          shadow = this.shadow, scaling,\n          shadowOffset = { x: 0, y: 0 }, shadowBlur,\n          width, height;\n\n      if (shadow) {\n        shadowBlur = shadow.blur;\n        if (shadow.nonScaling) {\n          scaling = { scaleX: 1, scaleY: 1 };\n        }\n        else {\n          scaling = this.getObjectScaling();\n        }\n        // consider non scaling shadow.\n        shadowOffset.x = 2 * Math.round(abs(shadow.offsetX) + shadowBlur) * (abs(scaling.scaleX));\n        shadowOffset.y = 2 * Math.round(abs(shadow.offsetY) + shadowBlur) * (abs(scaling.scaleY));\n      }\n      width = boundingRect.width + shadowOffset.x;\n      height = boundingRect.height + shadowOffset.y;\n      // if the current width/height is not an integer\n      // we need to make it so.\n      el.width = Math.ceil(width);\n      el.height = Math.ceil(height);\n      var canvas = new fabric.StaticCanvas(el, {\n        enableRetinaScaling: false,\n        renderOnAddRemove: false,\n        skipOffscreen: false,\n      });\n      if (options.format === 'jpeg') {\n        canvas.backgroundColor = '#fff';\n      }\n      this.setPositionByOrigin(new fabric.Point(canvas.width / 2, canvas.height / 2), 'center', 'center');\n\n      var originalCanvas = this.canvas;\n      canvas.add(this);\n      var canvasEl = canvas.toCanvasElement(multiplier || 1, options);\n      this.shadow = originalShadow;\n      this.set('canvas', originalCanvas);\n      if (originalGroup) {\n        this.group = originalGroup;\n      }\n      this.set(origParams).setCoords();\n      // canvas.dispose will call image.dispose that will nullify the elements\n      // since this canvas is a simple element for the process, we remove references\n      // to objects in this way in order to avoid object trashing.\n      canvas._objects = [];\n      canvas.dispose();\n      canvas = null;\n\n      return canvasEl;\n    },\n\n    /**\n     * Converts an object into a data-url-like string\n     * @param {Object} options Options object\n     * @param {String} [options.format=png] The format of the output image. Either \"jpeg\" or \"png\"\n     * @param {Number} [options.quality=1] Quality level (0..1). Only used for jpeg.\n     * @param {Number} [options.multiplier=1] Multiplier to scale by\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 1.6.4\n     * @param {Boolean} [options.withoutTransform] Remove current object transform ( no scale , no angle, no flip, no skew ). Introduced in 2.3.4\n     * @param {Boolean} [options.withoutShadow] Remove current object shadow. Introduced in 2.4.2\n     * @return {String} Returns a data: URL containing a representation of the object in the format specified by options.format\n     */\n    toDataURL: function(options) {\n      options || (options = { });\n      return fabric.util.toDataURL(this.toCanvasElement(options), options.format || 'png', options.quality || 1);\n    },\n\n    /**\n     * Returns true if specified type is identical to the type of an instance\n     * @param {String} type Type to check against\n     * @return {Boolean}\n     */\n    isType: function(type) {\n      return this.type === type;\n    },\n\n    /**\n     * Returns complexity of an instance\n     * @return {Number} complexity of this instance (is 1 unless subclassed)\n     */\n    complexity: function() {\n      return 1;\n    },\n\n    /**\n     * Returns a JSON representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} JSON\n     */\n    toJSON: function(propertiesToInclude) {\n      // delegate, not alias\n      return this.toObject(propertiesToInclude);\n    },\n\n    /**\n     * Sets gradient (fill or stroke) of an object\n     * percentages for x1,x2,y1,y2,r1,r2 together with gradientUnits 'pixels', are not supported.\n     * <b>Backwards incompatibility note:</b> This method was named \"setGradientFill\" until v1.1.0\n     * @param {String} property Property name 'stroke' or 'fill'\n     * @param {Object} [options] Options object\n     * @param {String} [options.type] Type of gradient 'radial' or 'linear'\n     * @param {Number} [options.x1=0] x-coordinate of start point\n     * @param {Number} [options.y1=0] y-coordinate of start point\n     * @param {Number} [options.x2=0] x-coordinate of end point\n     * @param {Number} [options.y2=0] y-coordinate of end point\n     * @param {Number} [options.r1=0] Radius of start point (only for radial gradients)\n     * @param {Number} [options.r2=0] Radius of end point (only for radial gradients)\n     * @param {Object} [options.colorStops] Color stops object eg. {0: 'ff0000', 1: '000000'}\n     * @param {Object} [options.gradientTransform] transformMatrix for gradient\n     * @return {fabric.Object} thisArg\n     * @chainable\n     * @deprecated since 3.4.0\n     * @see {@link http://jsfiddle.net/fabricjs/58y8b/|jsFiddle demo}\n     * @example <caption>Set linear gradient</caption>\n     * object.setGradient('fill', {\n     *   type: 'linear',\n     *   x1: -object.width / 2,\n     *   y1: 0,\n     *   x2: object.width / 2,\n     *   y2: 0,\n     *   colorStops: {\n     *     0: 'red',\n     *     0.5: '#005555',\n     *     1: 'rgba(0,0,255,0.5)'\n     *   }\n     * });\n     * canvas.renderAll();\n     * @example <caption>Set radial gradient</caption>\n     * object.setGradient('fill', {\n     *   type: 'radial',\n     *   x1: 0,\n     *   y1: 0,\n     *   x2: 0,\n     *   y2: 0,\n     *   r1: object.width / 2,\n     *   r2: 10,\n     *   colorStops: {\n     *     0: 'red',\n     *     0.5: '#005555',\n     *     1: 'rgba(0,0,255,0.5)'\n     *   }\n     * });\n     * canvas.renderAll();\n     */\n    setGradient: function(property, options) {\n      options || (options = { });\n\n      var gradient = { colorStops: [] };\n\n      gradient.type = options.type || (options.r1 || options.r2 ? 'radial' : 'linear');\n      gradient.coords = {\n        x1: options.x1,\n        y1: options.y1,\n        x2: options.x2,\n        y2: options.y2\n      };\n      gradient.gradientUnits = options.gradientUnits || 'pixels';\n      if (options.r1 || options.r2) {\n        gradient.coords.r1 = options.r1;\n        gradient.coords.r2 = options.r2;\n      }\n\n      gradient.gradientTransform = options.gradientTransform;\n      fabric.Gradient.prototype.addColorStop.call(gradient, options.colorStops);\n\n      return this.set(property, fabric.Gradient.forObject(this, gradient));\n    },\n\n    /**\n     * Sets pattern fill of an object\n     * @param {Object} options Options object\n     * @param {(String|HTMLImageElement)} options.source Pattern source\n     * @param {String} [options.repeat=repeat] Repeat property of a pattern (one of repeat, repeat-x, repeat-y or no-repeat)\n     * @param {Number} [options.offsetX=0] Pattern horizontal offset from object's left/top corner\n     * @param {Number} [options.offsetY=0] Pattern vertical offset from object's left/top corner\n     * @param {Function} [callback] Callback to invoke when image set as a pattern\n     * @return {fabric.Object} thisArg\n     * @chainable\n     * @deprecated since 3.5.0\n     * @see {@link http://jsfiddle.net/fabricjs/QT3pa/|jsFiddle demo}\n     * @example <caption>Set pattern</caption>\n     * object.setPatternFill({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png',\n     *   repeat: 'repeat'\n     * },canvas.renderAll.bind(canvas));\n     */\n    setPatternFill: function(options, callback) {\n      return this.set('fill', new fabric.Pattern(options, callback));\n    },\n\n    /**\n     * Sets {@link fabric.Object#shadow|shadow} of an object\n     * @param {Object|String} [options] Options object or string (e.g. \"2px 2px 10px rgba(0,0,0,0.2)\")\n     * @param {String} [options.color=rgb(0,0,0)] Shadow color\n     * @param {Number} [options.blur=0] Shadow blur\n     * @param {Number} [options.offsetX=0] Shadow horizontal offset\n     * @param {Number} [options.offsetY=0] Shadow vertical offset\n     * @return {fabric.Object} thisArg\n     * @chainable\n     * @deprecated since 3.5.0\n     * @see {@link http://jsfiddle.net/fabricjs/7gvJG/|jsFiddle demo}\n     * @example <caption>Set shadow with string notation</caption>\n     * object.setShadow('2px 2px 10px rgba(0,0,0,0.2)');\n     * canvas.renderAll();\n     * @example <caption>Set shadow with object notation</caption>\n     * object.setShadow({\n     *   color: 'red',\n     *   blur: 10,\n     *   offsetX: 20,\n     *   offsetY: 20\n     * });\n     * canvas.renderAll();\n     */\n    setShadow: function(options) {\n      return this.set('shadow', options ? new fabric.Shadow(options) : null);\n    },\n\n    /**\n     * Sets \"color\" of an instance (alias of `set('fill', &hellip;)`)\n     * @param {String} color Color value\n     * @return {fabric.Object} thisArg\n     * @deprecated since 3.5.0\n     * @chainable\n     */\n    setColor: function(color) {\n      this.set('fill', color);\n      return this;\n    },\n\n    /**\n     * Sets \"angle\" of an instance with centered rotation\n     * @param {Number} angle Angle value (in degrees)\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    rotate: function(angle) {\n      var shouldCenterOrigin = (this.originX !== 'center' || this.originY !== 'center') && this.centeredRotation;\n\n      if (shouldCenterOrigin) {\n        this._setOriginToCenter();\n      }\n\n      this.set('angle', angle);\n\n      if (shouldCenterOrigin) {\n        this._resetOrigin();\n      }\n\n      return this;\n    },\n\n    /**\n     * Centers object horizontally on canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    centerH: function () {\n      this.canvas && this.canvas.centerObjectH(this);\n      return this;\n    },\n\n    /**\n     * Centers object horizontally on current viewport of canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    viewportCenterH: function () {\n      this.canvas && this.canvas.viewportCenterObjectH(this);\n      return this;\n    },\n\n    /**\n     * Centers object vertically on canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    centerV: function () {\n      this.canvas && this.canvas.centerObjectV(this);\n      return this;\n    },\n\n    /**\n     * Centers object vertically on current viewport of canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    viewportCenterV: function () {\n      this.canvas && this.canvas.viewportCenterObjectV(this);\n      return this;\n    },\n\n    /**\n     * Centers object vertically and horizontally on canvas to which is was added last\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    center: function () {\n      this.canvas && this.canvas.centerObject(this);\n      return this;\n    },\n\n    /**\n     * Centers object on current viewport of canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    viewportCenter: function () {\n      this.canvas && this.canvas.viewportCenterObject(this);\n      return this;\n    },\n\n    /**\n     * Returns coordinates of a pointer relative to an object\n     * @param {Event} e Event to operate upon\n     * @param {Object} [pointer] Pointer to operate upon (instead of event)\n     * @return {Object} Coordinates of a pointer (x, y)\n     */\n    getLocalPointer: function(e, pointer) {\n      pointer = pointer || this.canvas.getPointer(e);\n      var pClicked = new fabric.Point(pointer.x, pointer.y),\n          objectLeftTop = this._getLeftTopCoords();\n      if (this.angle) {\n        pClicked = fabric.util.rotatePoint(\n          pClicked, objectLeftTop, degreesToRadians(-this.angle));\n      }\n      return {\n        x: pClicked.x - objectLeftTop.x,\n        y: pClicked.y - objectLeftTop.y\n      };\n    },\n\n    /**\n     * Sets canvas globalCompositeOperation for specific object\n     * custom composition operation for the particular object can be specified using globalCompositeOperation property\n     * @param {CanvasRenderingContext2D} ctx Rendering canvas context\n     */\n    _setupCompositeOperation: function (ctx) {\n      if (this.globalCompositeOperation) {\n        ctx.globalCompositeOperation = this.globalCompositeOperation;\n      }\n    }\n  });\n\n  fabric.util.createAccessors && fabric.util.createAccessors(fabric.Object);\n\n  extend(fabric.Object.prototype, fabric.Observable);\n\n  /**\n   * Defines the number of fraction digits to use when serializing object values.\n   * You can use it to increase/decrease precision of such values like left, top, scaleX, scaleY, etc.\n   * @static\n   * @memberOf fabric.Object\n   * @constant\n   * @type Number\n   */\n  fabric.Object.NUM_FRACTION_DIGITS = 2;\n\n  fabric.Object._fromObject = function(className, object, callback, extraParam) {\n    var klass = fabric[className];\n    object = clone(object, true);\n    fabric.util.enlivenPatterns([object.fill, object.stroke], function(patterns) {\n      if (typeof patterns[0] !== 'undefined') {\n        object.fill = patterns[0];\n      }\n      if (typeof patterns[1] !== 'undefined') {\n        object.stroke = patterns[1];\n      }\n      fabric.util.enlivenObjects([object.clipPath], function(enlivedProps) {\n        object.clipPath = enlivedProps[0];\n        var instance = extraParam ? new klass(object[extraParam], object) : new klass(object);\n        callback && callback(instance);\n      });\n    });\n  };\n\n  /**\n   * Unique id used internally when creating SVG elements\n   * @static\n   * @memberOf fabric.Object\n   * @type Number\n   */\n  fabric.Object.__uid = 0;\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n\n  var degreesToRadians = fabric.util.degreesToRadians,\n      originXOffset = {\n        left: -0.5,\n        center: 0,\n        right: 0.5\n      },\n      originYOffset = {\n        top: -0.5,\n        center: 0,\n        bottom: 0.5\n      };\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Translates the coordinates from a set of origin to another (based on the object's dimensions)\n     * @param {fabric.Point} point The point which corresponds to the originX and originY params\n     * @param {String} fromOriginX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} fromOriginY Vertical origin: 'top', 'center' or 'bottom'\n     * @param {String} toOriginX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} toOriginY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    translateToGivenOrigin: function(point, fromOriginX, fromOriginY, toOriginX, toOriginY) {\n      var x = point.x,\n          y = point.y,\n          offsetX, offsetY, dim;\n\n      if (typeof fromOriginX === 'string') {\n        fromOriginX = originXOffset[fromOriginX];\n      }\n      else {\n        fromOriginX -= 0.5;\n      }\n\n      if (typeof toOriginX === 'string') {\n        toOriginX = originXOffset[toOriginX];\n      }\n      else {\n        toOriginX -= 0.5;\n      }\n\n      offsetX = toOriginX - fromOriginX;\n\n      if (typeof fromOriginY === 'string') {\n        fromOriginY = originYOffset[fromOriginY];\n      }\n      else {\n        fromOriginY -= 0.5;\n      }\n\n      if (typeof toOriginY === 'string') {\n        toOriginY = originYOffset[toOriginY];\n      }\n      else {\n        toOriginY -= 0.5;\n      }\n\n      offsetY = toOriginY - fromOriginY;\n\n      if (offsetX || offsetY) {\n        dim = this._getTransformedDimensions();\n        x = point.x + offsetX * dim.x;\n        y = point.y + offsetY * dim.y;\n      }\n\n      return new fabric.Point(x, y);\n    },\n\n    /**\n     * Translates the coordinates from origin to center coordinates (based on the object's dimensions)\n     * @param {fabric.Point} point The point which corresponds to the originX and originY params\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    translateToCenterPoint: function(point, originX, originY) {\n      var p = this.translateToGivenOrigin(point, originX, originY, 'center', 'center');\n      if (this.angle) {\n        return fabric.util.rotatePoint(p, point, degreesToRadians(this.angle));\n      }\n      return p;\n    },\n\n    /**\n     * Translates the coordinates from center to origin coordinates (based on the object's dimensions)\n     * @param {fabric.Point} center The point which corresponds to center of the object\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    translateToOriginPoint: function(center, originX, originY) {\n      var p = this.translateToGivenOrigin(center, 'center', 'center', originX, originY);\n      if (this.angle) {\n        return fabric.util.rotatePoint(p, center, degreesToRadians(this.angle));\n      }\n      return p;\n    },\n\n    /**\n     * Returns the real center coordinates of the object\n     * @return {fabric.Point}\n     */\n    getCenterPoint: function() {\n      var leftTop = new fabric.Point(this.left, this.top);\n      return this.translateToCenterPoint(leftTop, this.originX, this.originY);\n    },\n\n    /**\n     * Returns the coordinates of the object based on center coordinates\n     * @param {fabric.Point} point The point which corresponds to the originX and originY params\n     * @return {fabric.Point}\n     */\n    // getOriginPoint: function(center) {\n    //   return this.translateToOriginPoint(center, this.originX, this.originY);\n    // },\n\n    /**\n     * Returns the coordinates of the object as if it has a different origin\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    getPointByOrigin: function(originX, originY) {\n      var center = this.getCenterPoint();\n      return this.translateToOriginPoint(center, originX, originY);\n    },\n\n    /**\n     * Returns the point in local coordinates\n     * @param {fabric.Point} point The point relative to the global coordinate system\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    toLocalPoint: function(point, originX, originY) {\n      var center = this.getCenterPoint(),\n          p, p2;\n\n      if (typeof originX !== 'undefined' && typeof originY !== 'undefined' ) {\n        p = this.translateToGivenOrigin(center, 'center', 'center', originX, originY);\n      }\n      else {\n        p = new fabric.Point(this.left, this.top);\n      }\n\n      p2 = new fabric.Point(point.x, point.y);\n      if (this.angle) {\n        p2 = fabric.util.rotatePoint(p2, center, -degreesToRadians(this.angle));\n      }\n      return p2.subtractEquals(p);\n    },\n\n    /**\n     * Returns the point in global coordinates\n     * @param {fabric.Point} The point relative to the local coordinate system\n     * @return {fabric.Point}\n     */\n    // toGlobalPoint: function(point) {\n    //   return fabric.util.rotatePoint(point, this.getCenterPoint(), degreesToRadians(this.angle)).addEquals(new fabric.Point(this.left, this.top));\n    // },\n\n    /**\n     * Sets the position of the object taking into consideration the object's origin\n     * @param {fabric.Point} pos The new position of the object\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {void}\n     */\n    setPositionByOrigin: function(pos, originX, originY) {\n      var center = this.translateToCenterPoint(pos, originX, originY),\n          position = this.translateToOriginPoint(center, this.originX, this.originY);\n      this.set('left', position.x);\n      this.set('top', position.y);\n    },\n\n    /**\n     * @param {String} to One of 'left', 'center', 'right'\n     */\n    adjustPosition: function(to) {\n      var angle = degreesToRadians(this.angle),\n          hypotFull = this.getScaledWidth(),\n          xFull = fabric.util.cos(angle) * hypotFull,\n          yFull = fabric.util.sin(angle) * hypotFull,\n          offsetFrom, offsetTo;\n\n      //TODO: this function does not consider mixed situation like top, center.\n      if (typeof this.originX === 'string') {\n        offsetFrom = originXOffset[this.originX];\n      }\n      else {\n        offsetFrom = this.originX - 0.5;\n      }\n      if (typeof to === 'string') {\n        offsetTo = originXOffset[to];\n      }\n      else {\n        offsetTo = to - 0.5;\n      }\n      this.left += xFull * (offsetTo - offsetFrom);\n      this.top += yFull * (offsetTo - offsetFrom);\n      this.setCoords();\n      this.originX = to;\n    },\n\n    /**\n     * Sets the origin/position of the object to it's center point\n     * @private\n     * @return {void}\n     */\n    _setOriginToCenter: function() {\n      this._originalOriginX = this.originX;\n      this._originalOriginY = this.originY;\n\n      var center = this.getCenterPoint();\n\n      this.originX = 'center';\n      this.originY = 'center';\n\n      this.left = center.x;\n      this.top = center.y;\n    },\n\n    /**\n     * Resets the origin/position of the object to it's original origin\n     * @private\n     * @return {void}\n     */\n    _resetOrigin: function() {\n      var originPoint = this.translateToOriginPoint(\n        this.getCenterPoint(),\n        this._originalOriginX,\n        this._originalOriginY);\n\n      this.originX = this._originalOriginX;\n      this.originY = this._originalOriginY;\n\n      this.left = originPoint.x;\n      this.top = originPoint.y;\n\n      this._originalOriginX = null;\n      this._originalOriginY = null;\n    },\n\n    /**\n     * @private\n     */\n    _getLeftTopCoords: function() {\n      return this.translateToOriginPoint(this.getCenterPoint(), 'left', 'top');\n    },\n  });\n\n})();\n\n\n(function() {\n\n  function getCoords(coords) {\n    return [\n      new fabric.Point(coords.tl.x, coords.tl.y),\n      new fabric.Point(coords.tr.x, coords.tr.y),\n      new fabric.Point(coords.br.x, coords.br.y),\n      new fabric.Point(coords.bl.x, coords.bl.y)\n    ];\n  }\n\n  var degreesToRadians = fabric.util.degreesToRadians,\n      multiplyMatrices = fabric.util.multiplyTransformMatrices,\n      transformPoint = fabric.util.transformPoint;\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Describe object's corner position in canvas element coordinates.\n     * properties are tl,mt,tr,ml,mr,bl,mb,br,mtr for the main controls.\n     * each property is an object with x, y and corner.\n     * The `corner` property contains in a similar manner the 4 points of the\n     * interactive area of the corner.\n     * The coordinates depends from this properties: width, height, scaleX, scaleY\n     * skewX, skewY, angle, strokeWidth, viewportTransform, top, left, padding.\n     * The coordinates get updated with @method setCoords.\n     * You can calculate them without updating with @method calcCoords;\n     * @memberOf fabric.Object.prototype\n     */\n    oCoords: null,\n\n    /**\n     * Describe object's corner position in canvas object absolute coordinates\n     * properties are tl,tr,bl,br and describe the four main corner.\n     * each property is an object with x, y, instance of Fabric.Point.\n     * The coordinates depends from this properties: width, height, scaleX, scaleY\n     * skewX, skewY, angle, strokeWidth, top, left.\n     * Those coordinates are useful to understand where an object is. They get updated\n     * with oCoords but they do not need to be updated when zoom or panning change.\n     * The coordinates get updated with @method setCoords.\n     * You can calculate them without updating with @method calcCoords(true);\n     * @memberOf fabric.Object.prototype\n     */\n    aCoords: null,\n\n    /**\n     * storage for object transform matrix\n     */\n    ownMatrixCache: null,\n\n    /**\n     * storage for object full transform matrix\n     */\n    matrixCache: null,\n\n    /**\n     * return correct set of coordinates for intersection\n     */\n    getCoords: function(absolute, calculate) {\n      if (!this.oCoords) {\n        this.setCoords();\n      }\n      var coords = absolute ? this.aCoords : this.oCoords;\n      return getCoords(calculate ? this.calcCoords(absolute) : coords);\n    },\n\n    /**\n     * Checks if object intersects with an area formed by 2 points\n     * @param {Object} pointTL top-left point of area\n     * @param {Object} pointBR bottom-right point of area\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object intersects with an area formed by 2 points\n     */\n    intersectsWithRect: function(pointTL, pointBR, absolute, calculate) {\n      var coords = this.getCoords(absolute, calculate),\n          intersection = fabric.Intersection.intersectPolygonRectangle(\n            coords,\n            pointTL,\n            pointBR\n          );\n      return intersection.status === 'Intersection';\n    },\n\n    /**\n     * Checks if object intersects with another object\n     * @param {Object} other Object to test\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object intersects with another object\n     */\n    intersectsWithObject: function(other, absolute, calculate) {\n      var intersection = fabric.Intersection.intersectPolygonPolygon(\n        this.getCoords(absolute, calculate),\n        other.getCoords(absolute, calculate)\n      );\n\n      return intersection.status === 'Intersection'\n        || other.isContainedWithinObject(this, absolute, calculate)\n        || this.isContainedWithinObject(other, absolute, calculate);\n    },\n\n    /**\n     * Checks if object is fully contained within area of another object\n     * @param {Object} other Object to test\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object is fully contained within area of another object\n     */\n    isContainedWithinObject: function(other, absolute, calculate) {\n      var points = this.getCoords(absolute, calculate),\n          i = 0, lines = other._getImageLines(\n            calculate ? other.calcCoords(absolute) : absolute ? other.aCoords : other.oCoords\n          );\n      for (; i < 4; i++) {\n        if (!other.containsPoint(points[i], lines)) {\n          return false;\n        }\n      }\n      return true;\n    },\n\n    /**\n     * Checks if object is fully contained within area formed by 2 points\n     * @param {Object} pointTL top-left point of area\n     * @param {Object} pointBR bottom-right point of area\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object is fully contained within area formed by 2 points\n     */\n    isContainedWithinRect: function(pointTL, pointBR, absolute, calculate) {\n      var boundingRect = this.getBoundingRect(absolute, calculate);\n\n      return (\n        boundingRect.left >= pointTL.x &&\n        boundingRect.left + boundingRect.width <= pointBR.x &&\n        boundingRect.top >= pointTL.y &&\n        boundingRect.top + boundingRect.height <= pointBR.y\n      );\n    },\n\n    /**\n     * Checks if point is inside the object\n     * @param {fabric.Point} point Point to check against\n     * @param {Object} [lines] object returned from @method _getImageLines\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if point is inside the object\n     */\n    containsPoint: function(point, lines, absolute, calculate) {\n      var lines = lines || this._getImageLines(\n            calculate ? this.calcCoords(absolute) : absolute ? this.aCoords : this.oCoords\n          ),\n          xPoints = this._findCrossPoints(point, lines);\n\n      // if xPoints is odd then point is inside the object\n      return (xPoints !== 0 && xPoints % 2 === 1);\n    },\n\n    /**\n     * Checks if object is contained within the canvas with current viewportTransform\n     * the check is done stopping at first point that appears on screen\n     * @param {Boolean} [calculate] use coordinates of current position instead of .aCoords\n     * @return {Boolean} true if object is fully or partially contained within canvas\n     */\n    isOnScreen: function(calculate) {\n      if (!this.canvas) {\n        return false;\n      }\n      var pointTL = this.canvas.vptCoords.tl, pointBR = this.canvas.vptCoords.br;\n      var points = this.getCoords(true, calculate), point;\n      for (var i = 0; i < 4; i++) {\n        point = points[i];\n        if (point.x <= pointBR.x && point.x >= pointTL.x && point.y <= pointBR.y && point.y >= pointTL.y) {\n          return true;\n        }\n      }\n      // no points on screen, check intersection with absolute coordinates\n      if (this.intersectsWithRect(pointTL, pointBR, true, calculate)) {\n        return true;\n      }\n      return this._containsCenterOfCanvas(pointTL, pointBR, calculate);\n    },\n\n    /**\n     * Checks if the object contains the midpoint between canvas extremities\n     * Does not make sense outside the context of isOnScreen and isPartiallyOnScreen\n     * @private\n     * @param {Fabric.Point} pointTL Top Left point\n     * @param {Fabric.Point} pointBR Top Right point\n     * @param {Boolean} calculate use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if the object contains the point\n     */\n    _containsCenterOfCanvas: function(pointTL, pointBR, calculate) {\n      // worst case scenario the object is so big that contains the screen\n      var centerPoint = { x: (pointTL.x + pointBR.x) / 2, y: (pointTL.y + pointBR.y) / 2 };\n      if (this.containsPoint(centerPoint, null, true, calculate)) {\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Checks if object is partially contained within the canvas with current viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object is partially contained within canvas\n     */\n    isPartiallyOnScreen: function(calculate) {\n      if (!this.canvas) {\n        return false;\n      }\n      var pointTL = this.canvas.vptCoords.tl, pointBR = this.canvas.vptCoords.br;\n      if (this.intersectsWithRect(pointTL, pointBR, true, calculate)) {\n        return true;\n      }\n      return this._containsCenterOfCanvas(pointTL, pointBR, calculate);\n    },\n\n    /**\n     * Method that returns an object with the object edges in it, given the coordinates of the corners\n     * @private\n     * @param {Object} oCoords Coordinates of the object corners\n     */\n    _getImageLines: function(oCoords) {\n      return {\n        topline: {\n          o: oCoords.tl,\n          d: oCoords.tr\n        },\n        rightline: {\n          o: oCoords.tr,\n          d: oCoords.br\n        },\n        bottomline: {\n          o: oCoords.br,\n          d: oCoords.bl\n        },\n        leftline: {\n          o: oCoords.bl,\n          d: oCoords.tl\n        }\n      };\n    },\n\n    /**\n     * Helper method to determine how many cross points are between the 4 object edges\n     * and the horizontal line determined by a point on canvas\n     * @private\n     * @param {fabric.Point} point Point to check\n     * @param {Object} lines Coordinates of the object being evaluated\n     */\n    // remove yi, not used but left code here just in case.\n    _findCrossPoints: function(point, lines) {\n      var b1, b2, a1, a2, xi, // yi,\n          xcount = 0,\n          iLine;\n\n      for (var lineKey in lines) {\n        iLine = lines[lineKey];\n        // optimisation 1: line below point. no cross\n        if ((iLine.o.y < point.y) && (iLine.d.y < point.y)) {\n          continue;\n        }\n        // optimisation 2: line above point. no cross\n        if ((iLine.o.y >= point.y) && (iLine.d.y >= point.y)) {\n          continue;\n        }\n        // optimisation 3: vertical line case\n        if ((iLine.o.x === iLine.d.x) && (iLine.o.x >= point.x)) {\n          xi = iLine.o.x;\n          // yi = point.y;\n        }\n        // calculate the intersection point\n        else {\n          b1 = 0;\n          b2 = (iLine.d.y - iLine.o.y) / (iLine.d.x - iLine.o.x);\n          a1 = point.y - b1 * point.x;\n          a2 = iLine.o.y - b2 * iLine.o.x;\n\n          xi = -(a1 - a2) / (b1 - b2);\n          // yi = a1 + b1 * xi;\n        }\n        // dont count xi < point.x cases\n        if (xi >= point.x) {\n          xcount += 1;\n        }\n        // optimisation 4: specific for square images\n        if (xcount === 2) {\n          break;\n        }\n      }\n      return xcount;\n    },\n\n    /**\n     * Returns coordinates of object's bounding rectangle (left, top, width, height)\n     * the box is intended as aligned to axis of canvas.\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords / .aCoords\n     * @return {Object} Object with left, top, width, height properties\n     */\n    getBoundingRect: function(absolute, calculate) {\n      var coords = this.getCoords(absolute, calculate);\n      return fabric.util.makeBoundingBoxFromPoints(coords);\n    },\n\n    /**\n     * Returns width of an object's bounding box counting transformations\n     * before 2.0 it was named getWidth();\n     * @return {Number} width value\n     */\n    getScaledWidth: function() {\n      return this._getTransformedDimensions().x;\n    },\n\n    /**\n     * Returns height of an object bounding box counting transformations\n     * before 2.0 it was named getHeight();\n     * @return {Number} height value\n     */\n    getScaledHeight: function() {\n      return this._getTransformedDimensions().y;\n    },\n\n    /**\n     * Makes sure the scale is valid and modifies it if necessary\n     * @private\n     * @param {Number} value\n     * @return {Number}\n     */\n    _constrainScale: function(value) {\n      if (Math.abs(value) < this.minScaleLimit) {\n        if (value < 0) {\n          return -this.minScaleLimit;\n        }\n        else {\n          return this.minScaleLimit;\n        }\n      }\n      else if (value === 0) {\n        return 0.0001;\n      }\n      return value;\n    },\n\n    /**\n     * Scales an object (equally by x and y)\n     * @param {Number} value Scale factor\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    scale: function(value) {\n      this._set('scaleX', value);\n      this._set('scaleY', value);\n      return this.setCoords();\n    },\n\n    /**\n     * Scales an object to a given width, with respect to bounding box (scaling by x/y equally)\n     * @param {Number} value New width value\n     * @param {Boolean} absolute ignore viewport\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    scaleToWidth: function(value, absolute) {\n      // adjust to bounding rect factor so that rotated shapes would fit as well\n      var boundingRectFactor = this.getBoundingRect(absolute).width / this.getScaledWidth();\n      return this.scale(value / this.width / boundingRectFactor);\n    },\n\n    /**\n     * Scales an object to a given height, with respect to bounding box (scaling by x/y equally)\n     * @param {Number} value New height value\n     * @param {Boolean} absolute ignore viewport\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    scaleToHeight: function(value, absolute) {\n      // adjust to bounding rect factor so that rotated shapes would fit as well\n      var boundingRectFactor = this.getBoundingRect(absolute).height / this.getScaledHeight();\n      return this.scale(value / this.height / boundingRectFactor);\n    },\n\n    /**\n     * Calculates and returns the .coords of an object.\n     * @return {Object} Object with tl, tr, br, bl ....\n     * @chainable\n     */\n    calcCoords: function(absolute) {\n      var rotateMatrix = this._calcRotateMatrix(),\n          translateMatrix = this._calcTranslateMatrix(),\n          startMatrix = multiplyMatrices(translateMatrix, rotateMatrix),\n          vpt = this.getViewportTransform(),\n          finalMatrix = absolute ? startMatrix : multiplyMatrices(vpt, startMatrix),\n          dim = this._getTransformedDimensions(),\n          w = dim.x / 2, h = dim.y / 2,\n          tl = transformPoint({ x: -w, y: -h }, finalMatrix),\n          tr = transformPoint({ x: w, y: -h }, finalMatrix),\n          bl = transformPoint({ x: -w, y: h }, finalMatrix),\n          br = transformPoint({ x: w, y: h }, finalMatrix);\n      if (!absolute) {\n        var padding = this.padding, angle = degreesToRadians(this.angle),\n            cos = fabric.util.cos(angle), sin = fabric.util.sin(angle),\n            cosP = cos * padding, sinP = sin * padding, cosPSinP = cosP + sinP,\n            cosPMinusSinP = cosP - sinP;\n        if (padding) {\n          tl.x -= cosPMinusSinP;\n          tl.y -= cosPSinP;\n          tr.x += cosPSinP;\n          tr.y -= cosPMinusSinP;\n          bl.x -= cosPSinP;\n          bl.y += cosPMinusSinP;\n          br.x += cosPMinusSinP;\n          br.y += cosPSinP;\n        }\n        var ml  = new fabric.Point((tl.x + bl.x) / 2, (tl.y + bl.y) / 2),\n            mt  = new fabric.Point((tr.x + tl.x) / 2, (tr.y + tl.y) / 2),\n            mr  = new fabric.Point((br.x + tr.x) / 2, (br.y + tr.y) / 2),\n            mb  = new fabric.Point((br.x + bl.x) / 2, (br.y + bl.y) / 2),\n            mtr = new fabric.Point(mt.x + sin * this.rotatingPointOffset, mt.y - cos * this.rotatingPointOffset);\n      }\n\n      // if (!absolute) {\n      //   var canvas = this.canvas;\n      //   setTimeout(function() {\n      //     canvas.contextTop.clearRect(0, 0, 700, 700);\n      //     canvas.contextTop.fillStyle = 'green';\n      //     canvas.contextTop.fillRect(mb.x, mb.y, 3, 3);\n      //     canvas.contextTop.fillRect(bl.x, bl.y, 3, 3);\n      //     canvas.contextTop.fillRect(br.x, br.y, 3, 3);\n      //     canvas.contextTop.fillRect(tl.x, tl.y, 3, 3);\n      //     canvas.contextTop.fillRect(tr.x, tr.y, 3, 3);\n      //     canvas.contextTop.fillRect(ml.x, ml.y, 3, 3);\n      //     canvas.contextTop.fillRect(mr.x, mr.y, 3, 3);\n      //     canvas.contextTop.fillRect(mt.x, mt.y, 3, 3);\n      //     canvas.contextTop.fillRect(mtr.x, mtr.y, 3, 3);\n      //   }, 50);\n      // }\n\n      var coords = {\n        // corners\n        tl: tl, tr: tr, br: br, bl: bl,\n      };\n      if (!absolute) {\n        // middle\n        coords.ml = ml;\n        coords.mt = mt;\n        coords.mr = mr;\n        coords.mb = mb;\n        // rotating point\n        coords.mtr = mtr;\n      }\n      return coords;\n    },\n\n    /**\n     * Sets corner position coordinates based on current angle, width and height.\n     * See {@link https://github.com/kangax/fabric.js/wiki/When-to-call-setCoords|When-to-call-setCoords}\n     * @param {Boolean} [ignoreZoom] set oCoords with or without the viewport transform.\n     * @param {Boolean} [skipAbsolute] skip calculation of aCoords, useful in setViewportTransform\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    setCoords: function(ignoreZoom, skipAbsolute) {\n      this.oCoords = this.calcCoords(ignoreZoom);\n      if (!skipAbsolute) {\n        this.aCoords = this.calcCoords(true);\n      }\n\n      // set coordinates of the draggable boxes in the corners used to scale/rotate the image\n      ignoreZoom || (this._setCornerCoords && this._setCornerCoords());\n\n      return this;\n    },\n\n    /**\n     * calculate rotation matrix of an object\n     * @return {Array} rotation matrix for the object\n     */\n    _calcRotateMatrix: function() {\n      return fabric.util.calcRotateMatrix(this);\n    },\n\n    /**\n     * calculate the translation matrix for an object transform\n     * @return {Array} rotation matrix for the object\n     */\n    _calcTranslateMatrix: function() {\n      var center = this.getCenterPoint();\n      return [1, 0, 0, 1, center.x, center.y];\n    },\n\n    transformMatrixKey: function(skipGroup) {\n      var sep = '_', prefix = '';\n      if (!skipGroup && this.group) {\n        prefix = this.group.transformMatrixKey(skipGroup) + sep;\n      };\n      return prefix + this.top + sep + this.left + sep + this.scaleX + sep + this.scaleY +\n        sep + this.skewX + sep + this.skewY + sep + this.angle + sep + this.originX + sep + this.originY +\n        sep + this.width + sep + this.height + sep + this.strokeWidth + this.flipX + this.flipY;\n    },\n\n    /**\n     * calculate transform matrix that represents the current transformations from the\n     * object's properties.\n     * @param {Boolean} [skipGroup] return transform matrix for object not counting parent transformations\n     * @return {Array} transform matrix for the object\n     */\n    calcTransformMatrix: function(skipGroup) {\n      if (skipGroup) {\n        return this.calcOwnMatrix();\n      }\n      var key = this.transformMatrixKey(), cache = this.matrixCache || (this.matrixCache = {});\n      if (cache.key === key) {\n        return cache.value;\n      }\n      var matrix = this.calcOwnMatrix();\n      if (this.group) {\n        matrix = multiplyMatrices(this.group.calcTransformMatrix(), matrix);\n      }\n      cache.key = key;\n      cache.value = matrix;\n      return matrix;\n    },\n\n    /**\n     * calculate transform matrix that represents the current transformations from the\n     * object's properties, this matrix does not include the group transformation\n     * @return {Array} transform matrix for the object\n     */\n    calcOwnMatrix: function() {\n      var key = this.transformMatrixKey(true), cache = this.ownMatrixCache || (this.ownMatrixCache = {});\n      if (cache.key === key) {\n        return cache.value;\n      }\n      var tMatrix = this._calcTranslateMatrix();\n      this.translateX = tMatrix[4];\n      this.translateY = tMatrix[5];\n      cache.key = key;\n      cache.value = fabric.util.composeMatrix(this);\n      return cache.value;\n    },\n\n    /*\n     * Calculate object dimensions from its properties\n     * @private\n     * @deprecated since 3.4.0, please use fabric.util._calcDimensionsTransformMatrix\n     * not including or including flipX, flipY to emulate the flipping boolean\n     * @return {Object} .x width dimension\n     * @return {Object} .y height dimension\n     */\n    _calcDimensionsTransformMatrix: function(skewX, skewY, flipping) {\n      return fabric.util.calcDimensionsMatrix({\n        skewX: skewX,\n        skewY: skewY,\n        scaleX: this.scaleX * (flipping && this.flipX ? -1 : 1),\n        scaleY: this.scaleY * (flipping && this.flipY ? -1 : 1)\n      });\n    },\n\n    /*\n     * Calculate object dimensions from its properties\n     * @private\n     * @return {Object} .x width dimension\n     * @return {Object} .y height dimension\n     */\n    _getNonTransformedDimensions: function() {\n      var strokeWidth = this.strokeWidth,\n          w = this.width + strokeWidth,\n          h = this.height + strokeWidth;\n      return { x: w, y: h };\n    },\n\n    /*\n     * Calculate object bounding box dimensions from its properties scale, skew.\n     * The skewX and skewY parameters are used in the skewing logic path and\n     * do not provide something useful to common use cases.\n     * @param {Number} [skewX], a value to override current skewX\n     * @param {Number} [skewY], a value to override current skewY\n     * @private\n     * @return {Object} .x width dimension\n     * @return {Object} .y height dimension\n     */\n    _getTransformedDimensions: function(skewX, skewY) {\n      if (typeof skewX === 'undefined') {\n        skewX = this.skewX;\n      }\n      if (typeof skewY === 'undefined') {\n        skewY = this.skewY;\n      }\n      var dimensions = this._getNonTransformedDimensions(), dimX, dimY,\n          noSkew = skewX === 0 && skewY === 0;\n\n      if (this.strokeUniform) {\n        dimX = this.width;\n        dimY = this.height;\n      }\n      else {\n        dimX = dimensions.x;\n        dimY = dimensions.y;\n      }\n      if (noSkew) {\n        return this._finalizeDimensions(dimX * this.scaleX, dimY * this.scaleY);\n      }\n      else {\n        dimX /= 2;\n        dimY /= 2;\n      }\n      var points = [\n            {\n              x: -dimX,\n              y: -dimY\n            },\n            {\n              x: dimX,\n              y: -dimY\n            },\n            {\n              x: -dimX,\n              y: dimY\n            },\n            {\n              x: dimX,\n              y: dimY\n            }],\n          transformMatrix = fabric.util.calcDimensionsMatrix({\n            scaleX: this.scaleX,\n            scaleY: this.scaleY,\n            skewX: skewX,\n            skewY: skewY,\n          }),\n          bbox = fabric.util.makeBoundingBoxFromPoints(points, transformMatrix);\n      return this._finalizeDimensions(bbox.width, bbox.height);\n    },\n\n    /*\n     * Calculate object bounding box dimensions from its properties scale, skew.\n     * @param Number width width of the bbox\n     * @param Number height height of the bbox\n     * @private\n     * @return {Object} .x finalized width dimension\n     * @return {Object} .y finalized height dimension\n     */\n    _finalizeDimensions: function(width, height) {\n      return this.strokeUniform ?\n        { x: width + this.strokeWidth, y: height + this.strokeWidth }\n        :\n        { x: width, y: height };\n    },\n    /*\n     * Calculate object dimensions for controls, including padding and canvas zoom.\n     * private\n     */\n    _calculateCurrentDimensions: function()  {\n      var vpt = this.getViewportTransform(),\n          dim = this._getTransformedDimensions(),\n          p = fabric.util.transformPoint(dim, vpt, true);\n\n      return p.scalarAdd(2 * this.padding);\n    },\n  });\n})();\n\n\nfabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n  /**\n   * Moves an object to the bottom of the stack of drawn objects\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  sendToBack: function() {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.sendToBack.call(this.group, this);\n    }\n    else if (this.canvas) {\n      this.canvas.sendToBack(this);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object to the top of the stack of drawn objects\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  bringToFront: function() {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.bringToFront.call(this.group, this);\n    }\n    else if (this.canvas) {\n      this.canvas.bringToFront(this);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object down in stack of drawn objects\n   * @param {Boolean} [intersecting] If `true`, send object behind next lower intersecting object\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  sendBackwards: function(intersecting) {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.sendBackwards.call(this.group, this, intersecting);\n    }\n    else if (this.canvas) {\n      this.canvas.sendBackwards(this, intersecting);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object up in stack of drawn objects\n   * @param {Boolean} [intersecting] If `true`, send object in front of next upper intersecting object\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  bringForward: function(intersecting) {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.bringForward.call(this.group, this, intersecting);\n    }\n    else if (this.canvas) {\n      this.canvas.bringForward(this, intersecting);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object to specified level in stack of drawn objects\n   * @param {Number} index New position of object\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  moveTo: function(index) {\n    if (this.group && this.group.type !== 'activeSelection') {\n      fabric.StaticCanvas.prototype.moveTo.call(this.group, this, index);\n    }\n    else if (this.canvas) {\n      this.canvas.moveTo(this, index);\n    }\n    return this;\n  }\n});\n\n\n/* _TO_SVG_START_ */\n(function() {\n  function getSvgColorString(prop, value) {\n    if (!value) {\n      return prop + ': none; ';\n    }\n    else if (value.toLive) {\n      return prop + ': url(#SVGID_' + value.id + '); ';\n    }\n    else {\n      var color = new fabric.Color(value),\n          str = prop + ': ' + color.toRgb() + '; ',\n          opacity = color.getAlpha();\n      if (opacity !== 1) {\n        //change the color in rgb + opacity\n        str += prop + '-opacity: ' + opacity.toString() + '; ';\n      }\n      return str;\n    }\n  }\n\n  var toFixed = fabric.util.toFixed;\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n    /**\n     * Returns styles-string for svg-export\n     * @param {Boolean} skipShadow a boolean to skip shadow filter output\n     * @return {String}\n     */\n    getSvgStyles: function(skipShadow) {\n\n      var fillRule = this.fillRule ? this.fillRule : 'nonzero',\n          strokeWidth = this.strokeWidth ? this.strokeWidth : '0',\n          strokeDashArray = this.strokeDashArray ? this.strokeDashArray.join(' ') : 'none',\n          strokeDashOffset = this.strokeDashOffset ? this.strokeDashOffset : '0',\n          strokeLineCap = this.strokeLineCap ? this.strokeLineCap : 'butt',\n          strokeLineJoin = this.strokeLineJoin ? this.strokeLineJoin : 'miter',\n          strokeMiterLimit = this.strokeMiterLimit ? this.strokeMiterLimit : '4',\n          opacity = typeof this.opacity !== 'undefined' ? this.opacity : '1',\n          visibility = this.visible ? '' : ' visibility: hidden;',\n          filter = skipShadow ? '' : this.getSvgFilter(),\n          fill = getSvgColorString('fill', this.fill),\n          stroke = getSvgColorString('stroke', this.stroke);\n\n      return [\n        stroke,\n        'stroke-width: ', strokeWidth, '; ',\n        'stroke-dasharray: ', strokeDashArray, '; ',\n        'stroke-linecap: ', strokeLineCap, '; ',\n        'stroke-dashoffset: ', strokeDashOffset, '; ',\n        'stroke-linejoin: ', strokeLineJoin, '; ',\n        'stroke-miterlimit: ', strokeMiterLimit, '; ',\n        fill,\n        'fill-rule: ', fillRule, '; ',\n        'opacity: ', opacity, ';',\n        filter,\n        visibility\n      ].join('');\n    },\n\n    /**\n     * Returns styles-string for svg-export\n     * @param {Object} style the object from which to retrieve style properties\n     * @param {Boolean} useWhiteSpace a boolean to include an additional attribute in the style.\n     * @return {String}\n     */\n    getSvgSpanStyles: function(style, useWhiteSpace) {\n      var term = '; ';\n      var fontFamily = style.fontFamily ?\n        'font-family: ' + (((style.fontFamily.indexOf('\\'') === -1 && style.fontFamily.indexOf('\"') === -1) ?\n          '\\'' + style.fontFamily  + '\\'' : style.fontFamily)) + term : '';\n      var strokeWidth = style.strokeWidth ? 'stroke-width: ' + style.strokeWidth + term : '',\n          fontFamily = fontFamily,\n          fontSize = style.fontSize ? 'font-size: ' + style.fontSize + 'px' + term : '',\n          fontStyle = style.fontStyle ? 'font-style: ' + style.fontStyle + term : '',\n          fontWeight = style.fontWeight ? 'font-weight: ' + style.fontWeight + term : '',\n          fill = style.fill ? getSvgColorString('fill', style.fill) : '',\n          stroke = style.stroke ? getSvgColorString('stroke', style.stroke) : '',\n          textDecoration = this.getSvgTextDecoration(style),\n          deltaY = style.deltaY ? 'baseline-shift: ' + (-style.deltaY) + '; ' : '';\n      if (textDecoration) {\n        textDecoration = 'text-decoration: ' + textDecoration + term;\n      }\n\n      return [\n        stroke,\n        strokeWidth,\n        fontFamily,\n        fontSize,\n        fontStyle,\n        fontWeight,\n        textDecoration,\n        fill,\n        deltaY,\n        useWhiteSpace ? 'white-space: pre; ' : ''\n      ].join('');\n    },\n\n    /**\n     * Returns text-decoration property for svg-export\n     * @param {Object} style the object from which to retrieve style properties\n     * @return {String}\n     */\n    getSvgTextDecoration: function(style) {\n      return ['overline', 'underline', 'line-through'].filter(function(decoration) {\n        return style[decoration.replace('-', '')];\n      }).join(' ');\n    },\n\n    /**\n     * Returns filter for svg shadow\n     * @return {String}\n     */\n    getSvgFilter: function() {\n      return this.shadow ? 'filter: url(#SVGID_' + this.shadow.id + ');' : '';\n    },\n\n    /**\n     * Returns id attribute for svg output\n     * @return {String}\n     */\n    getSvgCommons: function() {\n      return [\n        this.id ? 'id=\"' + this.id + '\" ' : '',\n        this.clipPath ? 'clip-path=\"url(#' + this.clipPath.clipPathId + ')\" ' : '',\n      ].join('');\n    },\n\n    /**\n     * Returns transform-string for svg-export\n     * @param {Boolean} use the full transform or the single object one.\n     * @return {String}\n     */\n    getSvgTransform: function(full, additionalTransform) {\n      var transform = full ? this.calcTransformMatrix() : this.calcOwnMatrix(),\n          svgTransform = 'transform=\"' + fabric.util.matrixToSVG(transform);\n      return svgTransform +\n        (additionalTransform || '') + this.getSvgTransformMatrix() + '\" ';\n    },\n\n    /**\n     * Returns transform-string for svg-export from the transform matrix of single elements\n     * @return {String}\n     */\n    getSvgTransformMatrix: function() {\n      return this.transformMatrix ? ' ' + fabric.util.matrixToSVG(this.transformMatrix) : '';\n    },\n\n    _setSVGBg: function(textBgRects) {\n      if (this.backgroundColor) {\n        var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n        textBgRects.push(\n          '\\t\\t<rect ',\n          this._getFillAttributes(this.backgroundColor),\n          ' x=\"',\n          toFixed(-this.width / 2, NUM_FRACTION_DIGITS),\n          '\" y=\"',\n          toFixed(-this.height / 2, NUM_FRACTION_DIGITS),\n          '\" width=\"',\n          toFixed(this.width, NUM_FRACTION_DIGITS),\n          '\" height=\"',\n          toFixed(this.height, NUM_FRACTION_DIGITS),\n          '\"></rect>\\n');\n      }\n    },\n\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toSVG: function(reviver) {\n      return this._createBaseSVGMarkup(this._toSVG(reviver), { reviver: reviver });\n    },\n\n    /**\n     * Returns svg clipPath representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toClipPathSVG: function(reviver) {\n      return '\\t' + this._createBaseClipPathSVGMarkup(this._toSVG(reviver), { reviver: reviver });\n    },\n\n    /**\n     * @private\n     */\n    _createBaseClipPathSVGMarkup: function(objectMarkup, options) {\n      options = options || {};\n      var reviver = options.reviver,\n          additionalTransform = options.additionalTransform || '',\n          commonPieces = [\n            this.getSvgTransform(true, additionalTransform),\n            this.getSvgCommons(),\n          ].join(''),\n          // insert commons in the markup, style and svgCommons\n          index = objectMarkup.indexOf('COMMON_PARTS');\n      objectMarkup[index] = commonPieces;\n      return reviver ? reviver(objectMarkup.join('')) : objectMarkup.join('');\n    },\n\n    /**\n     * @private\n     */\n    _createBaseSVGMarkup: function(objectMarkup, options) {\n      options = options || {};\n      var noStyle = options.noStyle,\n          reviver = options.reviver,\n          styleInfo = noStyle ? '' : 'style=\"' + this.getSvgStyles() + '\" ',\n          shadowInfo = options.withShadow ? 'style=\"' + this.getSvgFilter() + '\" ' : '',\n          clipPath = this.clipPath,\n          vectorEffect = this.strokeUniform ? 'vector-effect=\"non-scaling-stroke\" ' : '',\n          absoluteClipPath = clipPath && clipPath.absolutePositioned,\n          stroke = this.stroke, fill = this.fill, shadow = this.shadow,\n          commonPieces, markup = [], clipPathMarkup,\n          // insert commons in the markup, style and svgCommons\n          index = objectMarkup.indexOf('COMMON_PARTS'),\n          additionalTransform = options.additionalTransform;\n      if (clipPath) {\n        clipPath.clipPathId = 'CLIPPATH_' + fabric.Object.__uid++;\n        clipPathMarkup = '<clipPath id=\"' + clipPath.clipPathId + '\" >\\n' +\n          clipPath.toClipPathSVG(reviver) +\n          '</clipPath>\\n';\n      }\n      if (absoluteClipPath) {\n        markup.push(\n          '<g ', shadowInfo, this.getSvgCommons(), ' >\\n'\n        );\n      }\n      markup.push(\n        '<g ',\n        this.getSvgTransform(false),\n        !absoluteClipPath ? shadowInfo + this.getSvgCommons() : '',\n        ' >\\n'\n      );\n      commonPieces = [\n        styleInfo,\n        vectorEffect,\n        noStyle ? '' : this.addPaintOrder(), ' ',\n        additionalTransform ? 'transform=\"' + additionalTransform + '\" ' : '',\n      ].join('');\n      objectMarkup[index] = commonPieces;\n      if (fill && fill.toLive) {\n        markup.push(fill.toSVG(this));\n      }\n      if (stroke && stroke.toLive) {\n        markup.push(stroke.toSVG(this));\n      }\n      if (shadow) {\n        markup.push(shadow.toSVG(this));\n      }\n      if (clipPath) {\n        markup.push(clipPathMarkup);\n      }\n      markup.push(objectMarkup.join(''));\n      markup.push('</g>\\n');\n      absoluteClipPath && markup.push('</g>\\n');\n      return reviver ? reviver(markup.join('')) : markup.join('');\n    },\n\n    addPaintOrder: function() {\n      return this.paintFirst !== 'fill' ? ' paint-order=\"' + this.paintFirst + '\" ' : '';\n    }\n  });\n})();\n/* _TO_SVG_END_ */\n\n\n(function() {\n\n  var extend = fabric.util.object.extend,\n      originalSet = 'stateProperties';\n\n  /*\n    Depends on `stateProperties`\n  */\n  function saveProps(origin, destination, props) {\n    var tmpObj = { }, deep = true;\n    props.forEach(function(prop) {\n      tmpObj[prop] = origin[prop];\n    });\n    extend(origin[destination], tmpObj, deep);\n  }\n\n  function _isEqual(origValue, currentValue, firstPass) {\n    if (origValue === currentValue) {\n      // if the objects are identical, return\n      return true;\n    }\n    else if (Array.isArray(origValue)) {\n      if (!Array.isArray(currentValue) || origValue.length !== currentValue.length) {\n        return false;\n      }\n      for (var i = 0, len = origValue.length; i < len; i++) {\n        if (!_isEqual(origValue[i], currentValue[i])) {\n          return false;\n        }\n      }\n      return true;\n    }\n    else if (origValue && typeof origValue === 'object') {\n      var keys = Object.keys(origValue), key;\n      if (!currentValue ||\n          typeof currentValue !== 'object' ||\n          (!firstPass && keys.length !== Object.keys(currentValue).length)\n      ) {\n        return false;\n      }\n      for (var i = 0, len = keys.length; i < len; i++) {\n        key = keys[i];\n        // since clipPath is in the statefull cache list and the clipPath objects\n        // would be iterated as an object, this would lead to possible infinite recursion\n        if (key === 'canvas') {\n          continue;\n        }\n        if (!_isEqual(origValue[key], currentValue[key])) {\n          return false;\n        }\n      }\n      return true;\n    }\n  }\n\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Returns true if object state (one of its state properties) was changed\n     * @param {String} [propertySet] optional name for the set of property we want to save\n     * @return {Boolean} true if instance' state has changed since `{@link fabric.Object#saveState}` was called\n     */\n    hasStateChanged: function(propertySet) {\n      propertySet = propertySet || originalSet;\n      var dashedPropertySet = '_' + propertySet;\n      if (Object.keys(this[dashedPropertySet]).length < this[propertySet].length) {\n        return true;\n      }\n      return !_isEqual(this[dashedPropertySet], this, true);\n    },\n\n    /**\n     * Saves state of an object\n     * @param {Object} [options] Object with additional `stateProperties` array to include when saving state\n     * @return {fabric.Object} thisArg\n     */\n    saveState: function(options) {\n      var propertySet = options && options.propertySet || originalSet,\n          destination = '_' + propertySet;\n      if (!this[destination]) {\n        return this.setupState(options);\n      }\n      saveProps(this, destination, this[propertySet]);\n      if (options && options.stateProperties) {\n        saveProps(this, destination, options.stateProperties);\n      }\n      return this;\n    },\n\n    /**\n     * Setups state of an object\n     * @param {Object} [options] Object with additional `stateProperties` array to include when saving state\n     * @return {fabric.Object} thisArg\n     */\n    setupState: function(options) {\n      options = options || { };\n      var propertySet = options.propertySet || originalSet;\n      options.propertySet = propertySet;\n      this['_' + propertySet] = { };\n      this.saveState(options);\n      return this;\n    }\n  });\n})();\n\n\n(function() {\n\n  var degreesToRadians = fabric.util.degreesToRadians;\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * The object interactivity controls.\n     * @private\n     */\n    _controlsVisibility: null,\n\n    /**\n     * Determines which corner has been clicked\n     * @private\n     * @param {Object} pointer The pointer indicating the mouse position\n     * @return {String|Boolean} corner code (tl, tr, bl, br, etc.), or false if nothing is found\n     */\n    _findTargetCorner: function(pointer) {\n      // objects in group, anykind, are not self modificable,\n      // must not return an hovered corner.\n      if (!this.hasControls || this.group || (!this.canvas || this.canvas._activeObject !== this)) {\n        return false;\n      }\n\n      var ex = pointer.x,\n          ey = pointer.y,\n          xPoints,\n          lines;\n      this.__corner = 0;\n      for (var i in this.oCoords) {\n\n        if (!this.isControlVisible(i)) {\n          continue;\n        }\n\n        if (i === 'mtr' && !this.hasRotatingPoint) {\n          continue;\n        }\n\n        if (this.get('lockUniScaling') &&\n           (i === 'mt' || i === 'mr' || i === 'mb' || i === 'ml')) {\n          continue;\n        }\n\n        lines = this._getImageLines(this.oCoords[i].corner);\n\n        // debugging\n\n        // canvas.contextTop.fillRect(lines.bottomline.d.x, lines.bottomline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.bottomline.o.x, lines.bottomline.o.y, 2, 2);\n\n        // canvas.contextTop.fillRect(lines.leftline.d.x, lines.leftline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.leftline.o.x, lines.leftline.o.y, 2, 2);\n\n        // canvas.contextTop.fillRect(lines.topline.d.x, lines.topline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.topline.o.x, lines.topline.o.y, 2, 2);\n\n        // canvas.contextTop.fillRect(lines.rightline.d.x, lines.rightline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.rightline.o.x, lines.rightline.o.y, 2, 2);\n\n        xPoints = this._findCrossPoints({ x: ex, y: ey }, lines);\n        if (xPoints !== 0 && xPoints % 2 === 1) {\n          this.__corner = i;\n          return i;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Sets the coordinates of the draggable boxes in the corners of\n     * the image used to scale/rotate it.\n     * @private\n     */\n    _setCornerCoords: function() {\n      var coords = this.oCoords,\n          newTheta = degreesToRadians(45 - this.angle),\n          /* Math.sqrt(2 * Math.pow(this.cornerSize, 2)) / 2, */\n          /* 0.707106 stands for sqrt(2)/2 */\n          cornerHypotenuse = this.cornerSize * 0.707106,\n          cosHalfOffset = cornerHypotenuse * fabric.util.cos(newTheta),\n          sinHalfOffset = cornerHypotenuse * fabric.util.sin(newTheta),\n          x, y;\n\n      for (var point in coords) {\n        x = coords[point].x;\n        y = coords[point].y;\n        coords[point].corner = {\n          tl: {\n            x: x - sinHalfOffset,\n            y: y - cosHalfOffset\n          },\n          tr: {\n            x: x + cosHalfOffset,\n            y: y - sinHalfOffset\n          },\n          bl: {\n            x: x - cosHalfOffset,\n            y: y + sinHalfOffset\n          },\n          br: {\n            x: x + sinHalfOffset,\n            y: y + cosHalfOffset\n          }\n        };\n      }\n    },\n\n    /**\n     * Draws a colored layer behind the object, inside its selection borders.\n     * Requires public options: padding, selectionBackgroundColor\n     * this function is called when the context is transformed\n     * has checks to be skipped when the object is on a staticCanvas\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawSelectionBackground: function(ctx) {\n      if (!this.selectionBackgroundColor ||\n        (this.canvas && !this.canvas.interactive) ||\n        (this.canvas && this.canvas._activeObject !== this)\n      ) {\n        return this;\n      }\n      ctx.save();\n      var center = this.getCenterPoint(), wh = this._calculateCurrentDimensions(),\n          vpt = this.canvas.viewportTransform;\n      ctx.translate(center.x, center.y);\n      ctx.scale(1 / vpt[0], 1 / vpt[3]);\n      ctx.rotate(degreesToRadians(this.angle));\n      ctx.fillStyle = this.selectionBackgroundColor;\n      ctx.fillRect(-wh.x / 2, -wh.y / 2, wh.x, wh.y);\n      ctx.restore();\n      return this;\n    },\n\n    /**\n     * Draws borders of an object's bounding box.\n     * Requires public properties: width, height\n     * Requires public options: padding, borderColor\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @param {Object} styleOverride object to override the object style\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawBorders: function(ctx, styleOverride) {\n      styleOverride = styleOverride || {};\n      var wh = this._calculateCurrentDimensions(),\n          strokeWidth = this.borderScaleFactor,\n          width = wh.x + strokeWidth,\n          height = wh.y + strokeWidth,\n          drawRotatingPoint = typeof styleOverride.hasRotatingPoint !== 'undefined' ?\n            styleOverride.hasRotatingPoint : this.hasRotatingPoint,\n          hasControls = typeof styleOverride.hasControls !== 'undefined' ?\n            styleOverride.hasControls : this.hasControls,\n          rotatingPointOffset = typeof styleOverride.rotatingPointOffset !== 'undefined' ?\n            styleOverride.rotatingPointOffset : this.rotatingPointOffset;\n\n      ctx.save();\n      ctx.strokeStyle = styleOverride.borderColor || this.borderColor;\n      this._setLineDash(ctx, styleOverride.borderDashArray || this.borderDashArray, null);\n\n      ctx.strokeRect(\n        -width / 2,\n        -height / 2,\n        width,\n        height\n      );\n\n      if (drawRotatingPoint && this.isControlVisible('mtr') && hasControls) {\n\n        var rotateHeight = -height / 2;\n\n        ctx.beginPath();\n        ctx.moveTo(0, rotateHeight);\n        ctx.lineTo(0, rotateHeight - rotatingPointOffset);\n        ctx.stroke();\n      }\n\n      ctx.restore();\n      return this;\n    },\n\n    /**\n     * Draws borders of an object's bounding box when it is inside a group.\n     * Requires public properties: width, height\n     * Requires public options: padding, borderColor\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @param {object} options object representing current object parameters\n     * @param {Object} styleOverride object to override the object style\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawBordersInGroup: function(ctx, options, styleOverride) {\n      styleOverride = styleOverride || {};\n      var p = { x: this.width, y: this.height },\n          matrix = fabric.util.composeMatrix({\n            scaleX: options.scaleX,\n            scaleY: options.scaleY,\n            skewX: options.skewX\n          }),\n          wh = fabric.util.transformPoint(p, matrix),\n          strokeWidth = this.strokeWidth,\n          borderScaleFactor = this.borderScaleFactor,\n          width =\n            wh.x + strokeWidth * (this.strokeUniform ? this.canvas.getZoom() : options.scaleX) + borderScaleFactor,\n          height =\n            wh.y + strokeWidth * (this.strokeUniform ? this.canvas.getZoom() : options.scaleY) + borderScaleFactor;\n      ctx.save();\n      this._setLineDash(ctx, styleOverride.borderDashArray || this.borderDashArray, null);\n      ctx.strokeStyle = styleOverride.borderColor || this.borderColor;\n\n      ctx.strokeRect(\n        -width / 2,\n        -height / 2,\n        width,\n        height\n      );\n\n      ctx.restore();\n      return this;\n    },\n\n    /**\n     * Draws corners of an object's bounding box.\n     * Requires public properties: width, height\n     * Requires public options: cornerSize, padding\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @param {Object} styleOverride object to override the object style\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawControls: function(ctx, styleOverride) {\n      styleOverride = styleOverride || {};\n      var wh = this._calculateCurrentDimensions(),\n          width = wh.x,\n          height = wh.y,\n          scaleOffset = styleOverride.cornerSize || this.cornerSize,\n          left = -(width + scaleOffset) / 2,\n          top = -(height + scaleOffset) / 2,\n          transparentCorners = typeof styleOverride.transparentCorners !== 'undefined' ?\n            styleOverride.transparentCorners : this.transparentCorners,\n          hasRotatingPoint = typeof styleOverride.hasRotatingPoint !== 'undefined' ?\n            styleOverride.hasRotatingPoint : this.hasRotatingPoint,\n          methodName = transparentCorners ? 'stroke' : 'fill';\n\n      ctx.save();\n      ctx.strokeStyle = ctx.fillStyle = styleOverride.cornerColor || this.cornerColor;\n      if (!this.transparentCorners) {\n        ctx.strokeStyle = styleOverride.cornerStrokeColor || this.cornerStrokeColor;\n      }\n      this._setLineDash(ctx, styleOverride.cornerDashArray || this.cornerDashArray, null);\n\n      // top-left\n      this._drawControl('tl', ctx, methodName,\n        left,\n        top, styleOverride);\n\n      // top-right\n      this._drawControl('tr', ctx, methodName,\n        left + width,\n        top, styleOverride);\n\n      // bottom-left\n      this._drawControl('bl', ctx, methodName,\n        left,\n        top + height, styleOverride);\n\n      // bottom-right\n      this._drawControl('br', ctx, methodName,\n        left + width,\n        top + height, styleOverride);\n\n      if (!this.get('lockUniScaling')) {\n\n        // middle-top\n        this._drawControl('mt', ctx, methodName,\n          left + width / 2,\n          top, styleOverride);\n\n        // middle-bottom\n        this._drawControl('mb', ctx, methodName,\n          left + width / 2,\n          top + height, styleOverride);\n\n        // middle-right\n        this._drawControl('mr', ctx, methodName,\n          left + width,\n          top + height / 2, styleOverride);\n\n        // middle-left\n        this._drawControl('ml', ctx, methodName,\n          left,\n          top + height / 2, styleOverride);\n      }\n\n      // middle-top-rotate\n      if (hasRotatingPoint) {\n        this._drawControl('mtr', ctx, methodName,\n          left + width / 2,\n          top - this.rotatingPointOffset, styleOverride);\n      }\n\n      ctx.restore();\n\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _drawControl: function(control, ctx, methodName, left, top, styleOverride) {\n      styleOverride = styleOverride || {};\n      if (!this.isControlVisible(control)) {\n        return;\n      }\n      var size = this.cornerSize, stroke = !this.transparentCorners && this.cornerStrokeColor;\n      switch (styleOverride.cornerStyle || this.cornerStyle) {\n        case 'circle':\n          ctx.beginPath();\n          ctx.arc(left + size / 2, top + size / 2, size / 2, 0, 2 * Math.PI, false);\n          ctx[methodName]();\n          if (stroke) {\n            ctx.stroke();\n          }\n          break;\n        default:\n          this.transparentCorners || ctx.clearRect(left, top, size, size);\n          ctx[methodName + 'Rect'](left, top, size, size);\n          if (stroke) {\n            ctx.strokeRect(left, top, size, size);\n          }\n      }\n    },\n\n    /**\n     * Returns true if the specified control is visible, false otherwise.\n     * @param {String} controlName The name of the control. Possible values are 'tl', 'tr', 'br', 'bl', 'ml', 'mt', 'mr', 'mb', 'mtr'.\n     * @returns {Boolean} true if the specified control is visible, false otherwise\n     */\n    isControlVisible: function(controlName) {\n      return this._getControlsVisibility()[controlName];\n    },\n\n    /**\n     * Sets the visibility of the specified control.\n     * @param {String} controlName The name of the control. Possible values are 'tl', 'tr', 'br', 'bl', 'ml', 'mt', 'mr', 'mb', 'mtr'.\n     * @param {Boolean} visible true to set the specified control visible, false otherwise\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    setControlVisible: function(controlName, visible) {\n      this._getControlsVisibility()[controlName] = visible;\n      return this;\n    },\n\n    /**\n     * Sets the visibility state of object controls.\n     * @param {Object} [options] Options object\n     * @param {Boolean} [options.bl] true to enable the bottom-left control, false to disable it\n     * @param {Boolean} [options.br] true to enable the bottom-right control, false to disable it\n     * @param {Boolean} [options.mb] true to enable the middle-bottom control, false to disable it\n     * @param {Boolean} [options.ml] true to enable the middle-left control, false to disable it\n     * @param {Boolean} [options.mr] true to enable the middle-right control, false to disable it\n     * @param {Boolean} [options.mt] true to enable the middle-top control, false to disable it\n     * @param {Boolean} [options.tl] true to enable the top-left control, false to disable it\n     * @param {Boolean} [options.tr] true to enable the top-right control, false to disable it\n     * @param {Boolean} [options.mtr] true to enable the middle-top-rotate control, false to disable it\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    setControlsVisibility: function(options) {\n      options || (options = { });\n\n      for (var p in options) {\n        this.setControlVisible(p, options[p]);\n      }\n      return this;\n    },\n\n    /**\n     * Returns the instance of the control visibility set for this object.\n     * @private\n     * @returns {Object}\n     */\n    _getControlsVisibility: function() {\n      if (!this._controlsVisibility) {\n        this._controlsVisibility = {\n          tl: true,\n          tr: true,\n          br: true,\n          bl: true,\n          ml: true,\n          mt: true,\n          mr: true,\n          mb: true,\n          mtr: true\n        };\n      }\n      return this._controlsVisibility;\n    },\n\n    /**\n     * This callback function is called every time _discardActiveObject or _setActiveObject\n     * try to to deselect this object. If the function returns true, the process is cancelled\n     * @param {Object} [options] options sent from the upper functions\n     * @param {Event} [options.e] event if the process is generated by an event\n     */\n    onDeselect: function() {\n      // implemented by sub-classes, as needed.\n    },\n\n\n    /**\n     * This callback function is called every time _discardActiveObject or _setActiveObject\n     * try to to select this object. If the function returns true, the process is cancelled\n     * @param {Object} [options] options sent from the upper functions\n     * @param {Event} [options.e] event if the process is generated by an event\n     */\n    onSelect: function() {\n      // implemented by sub-classes, as needed.\n    }\n  });\n})();\n\n\nfabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n  /**\n   * Animation duration (in ms) for fx* methods\n   * @type Number\n   * @default\n   */\n  FX_DURATION: 500,\n\n  /**\n   * Centers object horizontally with animation.\n   * @param {fabric.Object} object Object to center\n   * @param {Object} [callbacks] Callbacks object with optional \"onComplete\" and/or \"onChange\" properties\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxCenterObjectH: function (object, callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: object.left,\n      endValue: this.getCenter().left,\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        object.set('left', value);\n        _this.requestRenderAll();\n        onChange();\n      },\n      onComplete: function() {\n        object.setCoords();\n        onComplete();\n      }\n    });\n\n    return this;\n  },\n\n  /**\n   * Centers object vertically with animation.\n   * @param {fabric.Object} object Object to center\n   * @param {Object} [callbacks] Callbacks object with optional \"onComplete\" and/or \"onChange\" properties\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxCenterObjectV: function (object, callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: object.top,\n      endValue: this.getCenter().top,\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        object.set('top', value);\n        _this.requestRenderAll();\n        onChange();\n      },\n      onComplete: function() {\n        object.setCoords();\n        onComplete();\n      }\n    });\n\n    return this;\n  },\n\n  /**\n   * Same as `fabric.Canvas#remove` but animated\n   * @param {fabric.Object} object Object to remove\n   * @param {Object} [callbacks] Callbacks object with optional \"onComplete\" and/or \"onChange\" properties\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxRemove: function (object, callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: object.opacity,\n      endValue: 0,\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        object.set('opacity', value);\n        _this.requestRenderAll();\n        onChange();\n      },\n      onComplete: function () {\n        _this.remove(object);\n        onComplete();\n      }\n    });\n\n    return this;\n  }\n});\n\nfabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n  /**\n   * Animates object's properties\n   * @param {String|Object} property Property to animate (if string) or properties to animate (if object)\n   * @param {Number|Object} value Value to animate property to (if string was given first) or options object\n   * @return {fabric.Object} thisArg\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#animation}\n   * @chainable\n   *\n   * As object — multiple properties\n   *\n   * object.animate({ left: ..., top: ... });\n   * object.animate({ left: ..., top: ... }, { duration: ... });\n   *\n   * As string — one property\n   *\n   * object.animate('left', ...);\n   * object.animate('left', { duration: ... });\n   *\n   */\n  animate: function() {\n    if (arguments[0] && typeof arguments[0] === 'object') {\n      var propsToAnimate = [], prop, skipCallbacks;\n      for (prop in arguments[0]) {\n        propsToAnimate.push(prop);\n      }\n      for (var i = 0, len = propsToAnimate.length; i < len; i++) {\n        prop = propsToAnimate[i];\n        skipCallbacks = i !== len - 1;\n        this._animate(prop, arguments[0][prop], arguments[1], skipCallbacks);\n      }\n    }\n    else {\n      this._animate.apply(this, arguments);\n    }\n    return this;\n  },\n\n  /**\n   * @private\n   * @param {String} property Property to animate\n   * @param {String} to Value to animate to\n   * @param {Object} [options] Options object\n   * @param {Boolean} [skipCallbacks] When true, callbacks like onchange and oncomplete are not invoked\n   */\n  _animate: function(property, to, options, skipCallbacks) {\n    var _this = this, propPair;\n\n    to = to.toString();\n\n    if (!options) {\n      options = { };\n    }\n    else {\n      options = fabric.util.object.clone(options);\n    }\n\n    if (~property.indexOf('.')) {\n      propPair = property.split('.');\n    }\n\n    var currentValue = propPair\n      ? this.get(propPair[0])[propPair[1]]\n      : this.get(property);\n\n    if (!('from' in options)) {\n      options.from = currentValue;\n    }\n\n    if (~to.indexOf('=')) {\n      to = currentValue + parseFloat(to.replace('=', ''));\n    }\n    else {\n      to = parseFloat(to);\n    }\n\n    fabric.util.animate({\n      startValue: options.from,\n      endValue: to,\n      byValue: options.by,\n      easing: options.easing,\n      duration: options.duration,\n      abort: options.abort && function() {\n        return options.abort.call(_this);\n      },\n      onChange: function(value, valueProgress, timeProgress) {\n        if (propPair) {\n          _this[propPair[0]][propPair[1]] = value;\n        }\n        else {\n          _this.set(property, value);\n        }\n        if (skipCallbacks) {\n          return;\n        }\n        options.onChange && options.onChange(value, valueProgress, timeProgress);\n      },\n      onComplete: function(value, valueProgress, timeProgress) {\n        if (skipCallbacks) {\n          return;\n        }\n\n        _this.setCoords();\n        options.onComplete && options.onComplete(value, valueProgress, timeProgress);\n      }\n    });\n  }\n});\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      clone = fabric.util.object.clone,\n      coordProps = { x1: 1, x2: 1, y1: 1, y2: 1 },\n      supportsLineDash = fabric.StaticCanvas.supports('setLineDash');\n\n  if (fabric.Line) {\n    fabric.warn('fabric.Line is already defined');\n    return;\n  }\n\n  /**\n   * Line class\n   * @class fabric.Line\n   * @extends fabric.Object\n   * @see {@link fabric.Line#initialize} for constructor definition\n   */\n  fabric.Line = fabric.util.createClass(fabric.Object, /** @lends fabric.Line.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'line',\n\n    /**\n     * x value or first line edge\n     * @type Number\n     * @default\n     */\n    x1: 0,\n\n    /**\n     * y value or first line edge\n     * @type Number\n     * @default\n     */\n    y1: 0,\n\n    /**\n     * x value or second line edge\n     * @type Number\n     * @default\n     */\n    x2: 0,\n\n    /**\n     * y value or second line edge\n     * @type Number\n     * @default\n     */\n    y2: 0,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('x1', 'x2', 'y1', 'y2'),\n\n    /**\n     * Constructor\n     * @param {Array} [points] Array of points\n     * @param {Object} [options] Options object\n     * @return {fabric.Line} thisArg\n     */\n    initialize: function(points, options) {\n      if (!points) {\n        points = [0, 0, 0, 0];\n      }\n\n      this.callSuper('initialize', options);\n\n      this.set('x1', points[0]);\n      this.set('y1', points[1]);\n      this.set('x2', points[2]);\n      this.set('y2', points[3]);\n\n      this._setWidthHeight(options);\n    },\n\n    /**\n     * @private\n     * @param {Object} [options] Options\n     */\n    _setWidthHeight: function(options) {\n      options || (options = { });\n\n      this.width = Math.abs(this.x2 - this.x1);\n      this.height = Math.abs(this.y2 - this.y1);\n\n      this.left = 'left' in options\n        ? options.left\n        : this._getLeftToOriginX();\n\n      this.top = 'top' in options\n        ? options.top\n        : this._getTopToOriginY();\n    },\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     */\n    _set: function(key, value) {\n      this.callSuper('_set', key, value);\n      if (typeof coordProps[key] !== 'undefined') {\n        this._setWidthHeight();\n      }\n      return this;\n    },\n\n    /**\n     * @private\n     * @return {Number} leftToOriginX Distance from left edge of canvas to originX of Line.\n     */\n    _getLeftToOriginX: makeEdgeToOriginGetter(\n      { // property names\n        origin: 'originX',\n        axis1: 'x1',\n        axis2: 'x2',\n        dimension: 'width'\n      },\n      { // possible values of origin\n        nearest: 'left',\n        center: 'center',\n        farthest: 'right'\n      }\n    ),\n\n    /**\n     * @private\n     * @return {Number} topToOriginY Distance from top edge of canvas to originY of Line.\n     */\n    _getTopToOriginY: makeEdgeToOriginGetter(\n      { // property names\n        origin: 'originY',\n        axis1: 'y1',\n        axis2: 'y2',\n        dimension: 'height'\n      },\n      { // possible values of origin\n        nearest: 'top',\n        center: 'center',\n        farthest: 'bottom'\n      }\n    ),\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      ctx.beginPath();\n\n      if (!this.strokeDashArray || this.strokeDashArray && supportsLineDash) {\n        // move from center (of virtual box) to its left/top corner\n        // we can't assume x1, y1 is top left and x2, y2 is bottom right\n        var p = this.calcLinePoints();\n        ctx.moveTo(p.x1, p.y1);\n        ctx.lineTo(p.x2, p.y2);\n      }\n\n      ctx.lineWidth = this.strokeWidth;\n\n      // TODO: test this\n      // make sure setting \"fill\" changes color of a line\n      // (by copying fillStyle to strokeStyle, since line is stroked, not filled)\n      var origStrokeStyle = ctx.strokeStyle;\n      ctx.strokeStyle = this.stroke || ctx.fillStyle;\n      this.stroke && this._renderStroke(ctx);\n      ctx.strokeStyle = origStrokeStyle;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var p = this.calcLinePoints();\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, p.x1, p.y1, p.x2, p.y2, this.strokeDashArray);\n      ctx.closePath();\n    },\n\n    /**\n     * This function is an helper for svg import. it returns the center of the object in the svg\n     * untransformed coordinates\n     * @private\n     * @return {Object} center point from element coordinates\n     */\n    _findCenterFromElement: function() {\n      return {\n        x: (this.x1 + this.x2) / 2,\n        y: (this.y1 + this.y2) / 2,\n      };\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @methd toObject\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return extend(this.callSuper('toObject', propertiesToInclude), this.calcLinePoints());\n    },\n\n    /*\n     * Calculate object dimensions from its properties\n     * @private\n     */\n    _getNonTransformedDimensions: function() {\n      var dim = this.callSuper('_getNonTransformedDimensions');\n      if (this.strokeLineCap === 'butt') {\n        if (this.width === 0) {\n          dim.y -= this.strokeWidth;\n        }\n        if (this.height === 0) {\n          dim.x -= this.strokeWidth;\n        }\n      }\n      return dim;\n    },\n\n    /**\n     * Recalculates line points given width and height\n     * @private\n     */\n    calcLinePoints: function() {\n      var xMult = this.x1 <= this.x2 ? -1 : 1,\n          yMult = this.y1 <= this.y2 ? -1 : 1,\n          x1 = (xMult * this.width * 0.5),\n          y1 = (yMult * this.height * 0.5),\n          x2 = (xMult * this.width * -0.5),\n          y2 = (yMult * this.height * -0.5);\n\n      return {\n        x1: x1,\n        x2: x2,\n        y1: y1,\n        y2: y2\n      };\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var p = this.calcLinePoints();\n      return [\n        '<line ', 'COMMON_PARTS',\n        'x1=\"', p.x1,\n        '\" y1=\"', p.y1,\n        '\" x2=\"', p.x2,\n        '\" y2=\"', p.y2,\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Line.fromElement})\n   * @static\n   * @memberOf fabric.Line\n   * @see http://www.w3.org/TR/SVG/shapes.html#LineElement\n   */\n  fabric.Line.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('x1 y1 x2 y2'.split(' '));\n\n  /**\n   * Returns fabric.Line instance from an SVG element\n   * @static\n   * @memberOf fabric.Line\n   * @param {SVGElement} element Element to parse\n   * @param {Object} [options] Options object\n   * @param {Function} [callback] callback function invoked after parsing\n   */\n  fabric.Line.fromElement = function(element, callback, options) {\n    options = options || { };\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Line.ATTRIBUTE_NAMES),\n        points = [\n          parsedAttributes.x1 || 0,\n          parsedAttributes.y1 || 0,\n          parsedAttributes.x2 || 0,\n          parsedAttributes.y2 || 0\n        ];\n    callback(new fabric.Line(points, extend(parsedAttributes, options)));\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Line instance from an object representation\n   * @static\n   * @memberOf fabric.Line\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   */\n  fabric.Line.fromObject = function(object, callback) {\n    function _callback(instance) {\n      delete instance.points;\n      callback && callback(instance);\n    };\n    var options = clone(object, true);\n    options.points = [object.x1, object.y1, object.x2, object.y2];\n    fabric.Object._fromObject('Line', options, _callback, 'points');\n  };\n\n  /**\n   * Produces a function that calculates distance from canvas edge to Line origin.\n   */\n  function makeEdgeToOriginGetter(propertyNames, originValues) {\n    var origin = propertyNames.origin,\n        axis1 = propertyNames.axis1,\n        axis2 = propertyNames.axis2,\n        dimension = propertyNames.dimension,\n        nearest = originValues.nearest,\n        center = originValues.center,\n        farthest = originValues.farthest;\n\n    return function() {\n      switch (this.get(origin)) {\n        case nearest:\n          return Math.min(this.get(axis1), this.get(axis2));\n        case center:\n          return Math.min(this.get(axis1), this.get(axis2)) + (0.5 * this.get(dimension));\n        case farthest:\n          return Math.max(this.get(axis1), this.get(axis2));\n      }\n    };\n\n  }\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      pi = Math.PI;\n\n  if (fabric.Circle) {\n    fabric.warn('fabric.Circle is already defined.');\n    return;\n  }\n\n  /**\n   * Circle class\n   * @class fabric.Circle\n   * @extends fabric.Object\n   * @see {@link fabric.Circle#initialize} for constructor definition\n   */\n  fabric.Circle = fabric.util.createClass(fabric.Object, /** @lends fabric.Circle.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'circle',\n\n    /**\n     * Radius of this circle\n     * @type Number\n     * @default\n     */\n    radius: 0,\n\n    /**\n     * Start angle of the circle, moving clockwise\n     * deprectated type, this should be in degree, this was an oversight.\n     * probably will change to degrees in next major version\n     * @type Number\n     * @default 0\n     */\n    startAngle: 0,\n\n    /**\n     * End angle of the circle\n     * deprectated type, this should be in degree, this was an oversight.\n     * probably will change to degrees in next major version\n     * @type Number\n     * @default 2Pi\n     */\n    endAngle: pi * 2,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('radius', 'startAngle', 'endAngle'),\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     * @return {fabric.Circle} thisArg\n     */\n    _set: function(key, value) {\n      this.callSuper('_set', key, value);\n\n      if (key === 'radius') {\n        this.setRadius(value);\n      }\n\n      return this;\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['radius', 'startAngle', 'endAngle'].concat(propertiesToInclude));\n    },\n\n    /* _TO_SVG_START_ */\n\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var svgString, x = 0, y = 0,\n          angle = (this.endAngle - this.startAngle) % ( 2 * pi);\n\n      if (angle === 0) {\n        svgString = [\n          '<circle ', 'COMMON_PARTS',\n          'cx=\"' + x + '\" cy=\"' + y + '\" ',\n          'r=\"', this.radius,\n          '\" />\\n'\n        ];\n      }\n      else {\n        var startX = fabric.util.cos(this.startAngle) * this.radius,\n            startY = fabric.util.sin(this.startAngle) * this.radius,\n            endX = fabric.util.cos(this.endAngle) * this.radius,\n            endY = fabric.util.sin(this.endAngle) * this.radius,\n            largeFlag = angle > pi ? '1' : '0';\n        svgString = [\n          '<path d=\"M ' + startX + ' ' + startY,\n          ' A ' + this.radius + ' ' + this.radius,\n          ' 0 ', +largeFlag + ' 1', ' ' + endX + ' ' + endY,\n          '\" ', 'COMMON_PARTS', ' />\\n'\n        ];\n      }\n      return svgString;\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render on\n     */\n    _render: function(ctx) {\n      ctx.beginPath();\n      ctx.arc(\n        0,\n        0,\n        this.radius,\n        this.startAngle,\n        this.endAngle, false);\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * Returns horizontal radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRadiusX: function() {\n      return this.get('radius') * this.get('scaleX');\n    },\n\n    /**\n     * Returns vertical radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRadiusY: function() {\n      return this.get('radius') * this.get('scaleY');\n    },\n\n    /**\n     * Sets radius of an object (and updates width accordingly)\n     * @return {fabric.Circle} thisArg\n     */\n    setRadius: function(value) {\n      this.radius = value;\n      return this.set('width', value * 2).set('height', value * 2);\n    },\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Circle.fromElement})\n   * @static\n   * @memberOf fabric.Circle\n   * @see: http://www.w3.org/TR/SVG/shapes.html#CircleElement\n   */\n  fabric.Circle.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('cx cy r'.split(' '));\n\n  /**\n   * Returns {@link fabric.Circle} instance from an SVG element\n   * @static\n   * @memberOf fabric.Circle\n   * @param {SVGElement} element Element to parse\n   * @param {Function} [callback] Options callback invoked after parsing is finished\n   * @param {Object} [options] Options object\n   * @throws {Error} If value of `r` attribute is missing or invalid\n   */\n  fabric.Circle.fromElement = function(element, callback) {\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Circle.ATTRIBUTE_NAMES);\n\n    if (!isValidRadius(parsedAttributes)) {\n      throw new Error('value of `r` attribute is required and can not be negative');\n    }\n\n    parsedAttributes.left = (parsedAttributes.left || 0) - parsedAttributes.radius;\n    parsedAttributes.top = (parsedAttributes.top || 0) - parsedAttributes.radius;\n    callback(new fabric.Circle(parsedAttributes));\n  };\n\n  /**\n   * @private\n   */\n  function isValidRadius(attributes) {\n    return (('radius' in attributes) && (attributes.radius >= 0));\n  }\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns {@link fabric.Circle} instance from an object representation\n   * @static\n   * @memberOf fabric.Circle\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   * @return {Object} Instance of fabric.Circle\n   */\n  fabric.Circle.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Circle', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Triangle) {\n    fabric.warn('fabric.Triangle is already defined');\n    return;\n  }\n\n  /**\n   * Triangle class\n   * @class fabric.Triangle\n   * @extends fabric.Object\n   * @return {fabric.Triangle} thisArg\n   * @see {@link fabric.Triangle#initialize} for constructor definition\n   */\n  fabric.Triangle = fabric.util.createClass(fabric.Object, /** @lends fabric.Triangle.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'triangle',\n\n    /**\n     * Width is set to 100 to compensate the old initialize code that was setting it to 100\n     * @type Number\n     * @default\n     */\n    width: 100,\n\n    /**\n     * Height is set to 100 to compensate the old initialize code that was setting it to 100\n     * @type Number\n     * @default\n     */\n    height: 100,\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      var widthBy2 = this.width / 2,\n          heightBy2 = this.height / 2;\n\n      ctx.beginPath();\n      ctx.moveTo(-widthBy2, heightBy2);\n      ctx.lineTo(0, -heightBy2);\n      ctx.lineTo(widthBy2, heightBy2);\n      ctx.closePath();\n\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var widthBy2 = this.width / 2,\n          heightBy2 = this.height / 2;\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, -widthBy2, heightBy2, 0, -heightBy2, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, 0, -heightBy2, widthBy2, heightBy2, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, widthBy2, heightBy2, -widthBy2, heightBy2, this.strokeDashArray);\n      ctx.closePath();\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var widthBy2 = this.width / 2,\n          heightBy2 = this.height / 2,\n          points = [\n            -widthBy2 + ' ' + heightBy2,\n            '0 ' + -heightBy2,\n            widthBy2 + ' ' + heightBy2\n          ].join(',');\n      return [\n        '<polygon ', 'COMMON_PARTS',\n        'points=\"', points,\n        '\" />'\n      ];\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /**\n   * Returns {@link fabric.Triangle} instance from an object representation\n   * @static\n   * @memberOf fabric.Triangle\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   */\n  fabric.Triangle.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Triangle', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      piBy2   = Math.PI * 2;\n\n  if (fabric.Ellipse) {\n    fabric.warn('fabric.Ellipse is already defined.');\n    return;\n  }\n\n  /**\n   * Ellipse class\n   * @class fabric.Ellipse\n   * @extends fabric.Object\n   * @return {fabric.Ellipse} thisArg\n   * @see {@link fabric.Ellipse#initialize} for constructor definition\n   */\n  fabric.Ellipse = fabric.util.createClass(fabric.Object, /** @lends fabric.Ellipse.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'ellipse',\n\n    /**\n     * Horizontal radius\n     * @type Number\n     * @default\n     */\n    rx:   0,\n\n    /**\n     * Vertical radius\n     * @type Number\n     * @default\n     */\n    ry:   0,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('rx', 'ry'),\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     * @return {fabric.Ellipse} thisArg\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      this.set('rx', options && options.rx || 0);\n      this.set('ry', options && options.ry || 0);\n    },\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     * @return {fabric.Ellipse} thisArg\n     */\n    _set: function(key, value) {\n      this.callSuper('_set', key, value);\n      switch (key) {\n\n        case 'rx':\n          this.rx = value;\n          this.set('width', value * 2);\n          break;\n\n        case 'ry':\n          this.ry = value;\n          this.set('height', value * 2);\n          break;\n\n      }\n      return this;\n    },\n\n    /**\n     * Returns horizontal radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRx: function() {\n      return this.get('rx') * this.get('scaleX');\n    },\n\n    /**\n     * Returns Vertical radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRy: function() {\n      return this.get('ry') * this.get('scaleY');\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['rx', 'ry'].concat(propertiesToInclude));\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      return [\n        '<ellipse ', 'COMMON_PARTS',\n        'cx=\"0\" cy=\"0\" ',\n        'rx=\"', this.rx,\n        '\" ry=\"', this.ry,\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render on\n     */\n    _render: function(ctx) {\n      ctx.beginPath();\n      ctx.save();\n      ctx.transform(1, 0, 0, this.ry / this.rx, 0, 0);\n      ctx.arc(\n        0,\n        0,\n        this.rx,\n        0,\n        piBy2,\n        false);\n      ctx.restore();\n      this._renderPaintInOrder(ctx);\n    },\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Ellipse.fromElement})\n   * @static\n   * @memberOf fabric.Ellipse\n   * @see http://www.w3.org/TR/SVG/shapes.html#EllipseElement\n   */\n  fabric.Ellipse.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('cx cy rx ry'.split(' '));\n\n  /**\n   * Returns {@link fabric.Ellipse} instance from an SVG element\n   * @static\n   * @memberOf fabric.Ellipse\n   * @param {SVGElement} element Element to parse\n   * @param {Function} [callback] Options callback invoked after parsing is finished\n   * @return {fabric.Ellipse}\n   */\n  fabric.Ellipse.fromElement = function(element, callback) {\n\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Ellipse.ATTRIBUTE_NAMES);\n\n    parsedAttributes.left = (parsedAttributes.left || 0) - parsedAttributes.rx;\n    parsedAttributes.top = (parsedAttributes.top || 0) - parsedAttributes.ry;\n    callback(new fabric.Ellipse(parsedAttributes));\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns {@link fabric.Ellipse} instance from an object representation\n   * @static\n   * @memberOf fabric.Ellipse\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   * @return {fabric.Ellipse}\n   */\n  fabric.Ellipse.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Ellipse', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend;\n\n  if (fabric.Rect) {\n    fabric.warn('fabric.Rect is already defined');\n    return;\n  }\n\n  /**\n   * Rectangle class\n   * @class fabric.Rect\n   * @extends fabric.Object\n   * @return {fabric.Rect} thisArg\n   * @see {@link fabric.Rect#initialize} for constructor definition\n   */\n  fabric.Rect = fabric.util.createClass(fabric.Object, /** @lends fabric.Rect.prototype */ {\n\n    /**\n     * List of properties to consider when checking if state of an object is changed ({@link fabric.Object#hasStateChanged})\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: fabric.Object.prototype.stateProperties.concat('rx', 'ry'),\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'rect',\n\n    /**\n     * Horizontal border radius\n     * @type Number\n     * @default\n     */\n    rx:   0,\n\n    /**\n     * Vertical border radius\n     * @type Number\n     * @default\n     */\n    ry:   0,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('rx', 'ry'),\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      this._initRxRy();\n    },\n\n    /**\n     * Initializes rx/ry attributes\n     * @private\n     */\n    _initRxRy: function() {\n      if (this.rx && !this.ry) {\n        this.ry = this.rx;\n      }\n      else if (this.ry && !this.rx) {\n        this.rx = this.ry;\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n\n      // 1x1 case (used in spray brush) optimization was removed because\n      // with caching and higher zoom level this makes more damage than help\n\n      var rx = this.rx ? Math.min(this.rx, this.width / 2) : 0,\n          ry = this.ry ? Math.min(this.ry, this.height / 2) : 0,\n          w = this.width,\n          h = this.height,\n          x = -this.width / 2,\n          y = -this.height / 2,\n          isRounded = rx !== 0 || ry !== 0,\n          /* \"magic number\" for bezier approximations of arcs (http://itc.ktu.lt/itc354/Riskus354.pdf) */\n          k = 1 - 0.5522847498;\n      ctx.beginPath();\n\n      ctx.moveTo(x + rx, y);\n\n      ctx.lineTo(x + w - rx, y);\n      isRounded && ctx.bezierCurveTo(x + w - k * rx, y, x + w, y + k * ry, x + w, y + ry);\n\n      ctx.lineTo(x + w, y + h - ry);\n      isRounded && ctx.bezierCurveTo(x + w, y + h - k * ry, x + w - k * rx, y + h, x + w - rx, y + h);\n\n      ctx.lineTo(x + rx, y + h);\n      isRounded && ctx.bezierCurveTo(x + k * rx, y + h, x, y + h - k * ry, x, y + h - ry);\n\n      ctx.lineTo(x, y + ry);\n      isRounded && ctx.bezierCurveTo(x, y + k * ry, x + k * rx, y, x + rx, y);\n\n      ctx.closePath();\n\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var x = -this.width / 2,\n          y = -this.height / 2,\n          w = this.width,\n          h = this.height;\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, x, y, x + w, y, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y, x + w, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y + h, x, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x, y + h, x, y, this.strokeDashArray);\n      ctx.closePath();\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['rx', 'ry'].concat(propertiesToInclude));\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var x = -this.width / 2, y = -this.height / 2;\n      return [\n        '<rect ', 'COMMON_PARTS',\n        'x=\"', x, '\" y=\"', y,\n        '\" rx=\"', this.rx, '\" ry=\"', this.ry,\n        '\" width=\"', this.width, '\" height=\"', this.height,\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by `fabric.Rect.fromElement`)\n   * @static\n   * @memberOf fabric.Rect\n   * @see: http://www.w3.org/TR/SVG/shapes.html#RectElement\n   */\n  fabric.Rect.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('x y rx ry width height'.split(' '));\n\n  /**\n   * Returns {@link fabric.Rect} instance from an SVG element\n   * @static\n   * @memberOf fabric.Rect\n   * @param {SVGElement} element Element to parse\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Rect.fromElement = function(element, callback, options) {\n    if (!element) {\n      return callback(null);\n    }\n    options = options || { };\n\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Rect.ATTRIBUTE_NAMES);\n\n    parsedAttributes.left = parsedAttributes.left || 0;\n    parsedAttributes.top  = parsedAttributes.top  || 0;\n    parsedAttributes.height  = parsedAttributes.height || 0;\n    parsedAttributes.width  = parsedAttributes.width || 0;\n    var rect = new fabric.Rect(extend((options ? fabric.util.object.clone(options) : { }), parsedAttributes));\n    rect.visible = rect.visible && rect.width > 0 && rect.height > 0;\n    callback(rect);\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns {@link fabric.Rect} instance from an object representation\n   * @static\n   * @memberOf fabric.Rect\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Rect instance is created\n   */\n  fabric.Rect.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Rect', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      min = fabric.util.array.min,\n      max = fabric.util.array.max,\n      toFixed = fabric.util.toFixed;\n\n  if (fabric.Polyline) {\n    fabric.warn('fabric.Polyline is already defined');\n    return;\n  }\n\n  /**\n   * Polyline class\n   * @class fabric.Polyline\n   * @extends fabric.Object\n   * @see {@link fabric.Polyline#initialize} for constructor definition\n   */\n  fabric.Polyline = fabric.util.createClass(fabric.Object, /** @lends fabric.Polyline.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'polyline',\n\n    /**\n     * Points array\n     * @type Array\n     * @default\n     */\n    points: null,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('points'),\n\n    /**\n     * Constructor\n     * @param {Array} points Array of points (where each point is an object with x and y)\n     * @param {Object} [options] Options object\n     * @return {fabric.Polyline} thisArg\n     * @example\n     * var poly = new fabric.Polyline([\n     *     { x: 10, y: 10 },\n     *     { x: 50, y: 30 },\n     *     { x: 40, y: 70 },\n     *     { x: 60, y: 50 },\n     *     { x: 100, y: 150 },\n     *     { x: 40, y: 100 }\n     *   ], {\n     *   stroke: 'red',\n     *   left: 100,\n     *   top: 100\n     * });\n     */\n    initialize: function(points, options) {\n      options = options || {};\n      this.points = points || [];\n      this.callSuper('initialize', options);\n      this._setPositionDimensions(options);\n    },\n\n    _setPositionDimensions: function(options) {\n      var calcDim = this._calcDimensions(options), correctLeftTop;\n      this.width = calcDim.width;\n      this.height = calcDim.height;\n      if (!options.fromSVG) {\n        correctLeftTop = this.translateToGivenOrigin(\n          { x: calcDim.left - this.strokeWidth / 2, y: calcDim.top - this.strokeWidth / 2 },\n          'left',\n          'top',\n          this.originX,\n          this.originY\n        );\n      }\n      if (typeof options.left === 'undefined') {\n        this.left = options.fromSVG ? calcDim.left : correctLeftTop.x;\n      }\n      if (typeof options.top === 'undefined') {\n        this.top = options.fromSVG ? calcDim.top : correctLeftTop.y;\n      }\n      this.pathOffset = {\n        x: calcDim.left + this.width / 2,\n        y: calcDim.top + this.height / 2\n      };\n    },\n\n    /**\n     * Calculate the polygon min and max point from points array,\n     * returning an object with left, top, widht, height to measure the\n     * polygon size\n     * @return {Object} object.left X coordinate of the polygon leftmost point\n     * @return {Object} object.top Y coordinate of the polygon topmost point\n     * @return {Object} object.width distance between X coordinates of the polygon leftmost and rightmost point\n     * @return {Object} object.height distance between Y coordinates of the polygon topmost and bottommost point\n     * @private\n     */\n    _calcDimensions: function() {\n\n      var points = this.points,\n          minX = min(points, 'x') || 0,\n          minY = min(points, 'y') || 0,\n          maxX = max(points, 'x') || 0,\n          maxY = max(points, 'y') || 0,\n          width = (maxX - minX),\n          height = (maxY - minY);\n\n      return {\n        left: minX,\n        top: minY,\n        width: width,\n        height: height\n      };\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return extend(this.callSuper('toObject', propertiesToInclude), {\n        points: this.points.concat()\n      });\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var points = [], diffX = this.pathOffset.x, diffY = this.pathOffset.y,\n          NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n\n      for (var i = 0, len = this.points.length; i < len; i++) {\n        points.push(\n          toFixed(this.points[i].x - diffX, NUM_FRACTION_DIGITS), ',',\n          toFixed(this.points[i].y - diffY, NUM_FRACTION_DIGITS), ' '\n        );\n      }\n      return [\n        '<' + this.type + ' ', 'COMMON_PARTS',\n        'points=\"', points.join(''),\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    commonRender: function(ctx) {\n      var point, len = this.points.length,\n          x = this.pathOffset.x,\n          y = this.pathOffset.y;\n\n      if (!len || isNaN(this.points[len - 1].y)) {\n        // do not draw if no points or odd points\n        // NaN comes from parseFloat of a empty string in parser\n        return false;\n      }\n      ctx.beginPath();\n      ctx.moveTo(this.points[0].x - x, this.points[0].y - y);\n      for (var i = 0; i < len; i++) {\n        point = this.points[i];\n        ctx.lineTo(point.x - x, point.y - y);\n      }\n      return true;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      if (!this.commonRender(ctx)) {\n        return;\n      }\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var p1, p2;\n\n      ctx.beginPath();\n      for (var i = 0, len = this.points.length; i < len; i++) {\n        p1 = this.points[i];\n        p2 = this.points[i + 1] || p1;\n        fabric.util.drawDashedLine(ctx, p1.x, p1.y, p2.x, p2.y, this.strokeDashArray);\n      }\n    },\n\n    /**\n     * Returns complexity of an instance\n     * @return {Number} complexity of this instance\n     */\n    complexity: function() {\n      return this.get('points').length;\n    }\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Polyline.fromElement})\n   * @static\n   * @memberOf fabric.Polyline\n   * @see: http://www.w3.org/TR/SVG/shapes.html#PolylineElement\n   */\n  fabric.Polyline.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat();\n\n  /**\n   * Returns fabric.Polyline instance from an SVG element\n   * @static\n   * @memberOf fabric.Polyline\n   * @param {SVGElement} element Element to parser\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Polyline.fromElementGenerator = function(_class) {\n    return function(element, callback, options) {\n      if (!element) {\n        return callback(null);\n      }\n      options || (options = { });\n\n      var points = fabric.parsePointsAttribute(element.getAttribute('points')),\n          parsedAttributes = fabric.parseAttributes(element, fabric[_class].ATTRIBUTE_NAMES);\n      parsedAttributes.fromSVG = true;\n      callback(new fabric[_class](points, extend(parsedAttributes, options)));\n    };\n  };\n\n  fabric.Polyline.fromElement = fabric.Polyline.fromElementGenerator('Polyline');\n\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Polyline instance from an object representation\n   * @static\n   * @memberOf fabric.Polyline\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Path instance is created\n   */\n  fabric.Polyline.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Polyline', object, callback, 'points');\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Polygon) {\n    fabric.warn('fabric.Polygon is already defined');\n    return;\n  }\n\n  /**\n   * Polygon class\n   * @class fabric.Polygon\n   * @extends fabric.Polyline\n   * @see {@link fabric.Polygon#initialize} for constructor definition\n   */\n  fabric.Polygon = fabric.util.createClass(fabric.Polyline, /** @lends fabric.Polygon.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'polygon',\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      if (!this.commonRender(ctx)) {\n        return;\n      }\n      ctx.closePath();\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      this.callSuper('_renderDashedStroke', ctx);\n      ctx.closePath();\n    },\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by `fabric.Polygon.fromElement`)\n   * @static\n   * @memberOf fabric.Polygon\n   * @see: http://www.w3.org/TR/SVG/shapes.html#PolygonElement\n   */\n  fabric.Polygon.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat();\n\n  /**\n   * Returns {@link fabric.Polygon} instance from an SVG element\n   * @static\n   * @memberOf fabric.Polygon\n   * @param {SVGElement} element Element to parse\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Polygon.fromElement = fabric.Polyline.fromElementGenerator('Polygon');\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Polygon instance from an object representation\n   * @static\n   * @memberOf fabric.Polygon\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Path instance is created\n   */\n  fabric.Polygon.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Polygon', object, callback, 'points');\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      min = fabric.util.array.min,\n      max = fabric.util.array.max,\n      extend = fabric.util.object.extend,\n      _toString = Object.prototype.toString,\n      drawArc = fabric.util.drawArc,\n      toFixed = fabric.util.toFixed,\n      commandLengths = {\n        m: 2,\n        l: 2,\n        h: 1,\n        v: 1,\n        c: 6,\n        s: 4,\n        q: 4,\n        t: 2,\n        a: 7\n      },\n      repeatedCommands = {\n        m: 'l',\n        M: 'L'\n      };\n\n  if (fabric.Path) {\n    fabric.warn('fabric.Path is already defined');\n    return;\n  }\n\n  /**\n   * Path class\n   * @class fabric.Path\n   * @extends fabric.Object\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#path_and_pathgroup}\n   * @see {@link fabric.Path#initialize} for constructor definition\n   */\n  fabric.Path = fabric.util.createClass(fabric.Object, /** @lends fabric.Path.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'path',\n\n    /**\n     * Array of path points\n     * @type Array\n     * @default\n     */\n    path: null,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('path', 'fillRule'),\n\n    stateProperties: fabric.Object.prototype.stateProperties.concat('path'),\n\n    /**\n     * Constructor\n     * @param {Array|String} path Path data (sequence of coordinates and corresponding \"command\" tokens)\n     * @param {Object} [options] Options object\n     * @return {fabric.Path} thisArg\n     */\n    initialize: function(path, options) {\n      options = options || { };\n      this.callSuper('initialize', options);\n\n      if (!path) {\n        path = [];\n      }\n\n      var fromArray = _toString.call(path) === '[object Array]';\n\n      this.path = fromArray\n        ? path\n        // one of commands (m,M,l,L,q,Q,c,C,etc.) followed by non-command characters (i.e. command values)\n        : path.match && path.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi);\n\n      if (!this.path) {\n        return;\n      }\n\n      if (!fromArray) {\n        this.path = this._parsePath();\n      }\n\n      fabric.Polyline.prototype._setPositionDimensions.call(this, options);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render path on\n     */\n    _renderPathCommands: function(ctx) {\n      var current, // current instruction\n          previous = null,\n          subpathStartX = 0,\n          subpathStartY = 0,\n          x = 0, // current x\n          y = 0, // current y\n          controlX = 0, // current control point x\n          controlY = 0, // current control point y\n          tempX,\n          tempY,\n          l = -this.pathOffset.x,\n          t = -this.pathOffset.y;\n\n      ctx.beginPath();\n\n      for (var i = 0, len = this.path.length; i < len; ++i) {\n\n        current = this.path[i];\n\n        switch (current[0]) { // first letter\n\n          case 'l': // lineto, relative\n            x += current[1];\n            y += current[2];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'L': // lineto, absolute\n            x = current[1];\n            y = current[2];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'h': // horizontal lineto, relative\n            x += current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'H': // horizontal lineto, absolute\n            x = current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'v': // vertical lineto, relative\n            y += current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'V': // verical lineto, absolute\n            y = current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'm': // moveTo, relative\n            x += current[1];\n            y += current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            ctx.moveTo(x + l, y + t);\n            break;\n\n          case 'M': // moveTo, absolute\n            x = current[1];\n            y = current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            ctx.moveTo(x + l, y + t);\n            break;\n\n          case 'c': // bezierCurveTo, relative\n            tempX = x + current[5];\n            tempY = y + current[6];\n            controlX = x + current[3];\n            controlY = y + current[4];\n            ctx.bezierCurveTo(\n              x + current[1] + l, // x1\n              y + current[2] + t, // y1\n              controlX + l, // x2\n              controlY + t, // y2\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'C': // bezierCurveTo, absolute\n            x = current[5];\n            y = current[6];\n            controlX = current[3];\n            controlY = current[4];\n            ctx.bezierCurveTo(\n              current[1] + l,\n              current[2] + t,\n              controlX + l,\n              controlY + t,\n              x + l,\n              y + t\n            );\n            break;\n\n          case 's': // shorthand cubic bezierCurveTo, relative\n\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            ctx.bezierCurveTo(\n              controlX + l,\n              controlY + t,\n              x + current[1] + l,\n              y + current[2] + t,\n              tempX + l,\n              tempY + t\n            );\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = x + current[1];\n            controlY = y + current[2];\n\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'S': // shorthand cubic bezierCurveTo, absolute\n            tempX = current[3];\n            tempY = current[4];\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            ctx.bezierCurveTo(\n              controlX + l,\n              controlY + t,\n              current[1] + l,\n              current[2] + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = current[1];\n            controlY = current[2];\n\n            break;\n\n          case 'q': // quadraticCurveTo, relative\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n\n            controlX = x + current[1];\n            controlY = y + current[2];\n\n            ctx.quadraticCurveTo(\n              controlX + l,\n              controlY + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'Q': // quadraticCurveTo, absolute\n            tempX = current[3];\n            tempY = current[4];\n\n            ctx.quadraticCurveTo(\n              current[1] + l,\n              current[2] + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            controlX = current[1];\n            controlY = current[2];\n            break;\n\n          case 't': // shorthand quadraticCurveTo, relative\n\n            // transform to absolute x,y\n            tempX = x + current[1];\n            tempY = y + current[2];\n\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            ctx.quadraticCurveTo(\n              controlX + l,\n              controlY + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n\n            break;\n\n          case 'T':\n            tempX = current[1];\n            tempY = current[2];\n\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            ctx.quadraticCurveTo(\n              controlX + l,\n              controlY + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'a':\n            // TODO: optimize this\n            drawArc(ctx, x + l, y + t, [\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6] + x + l,\n              current[7] + y + t\n            ]);\n            x += current[6];\n            y += current[7];\n            break;\n\n          case 'A':\n            // TODO: optimize this\n            drawArc(ctx, x + l, y + t, [\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6] + l,\n              current[7] + t\n            ]);\n            x = current[6];\n            y = current[7];\n            break;\n\n          case 'z':\n          case 'Z':\n            x = subpathStartX;\n            y = subpathStartY;\n            ctx.closePath();\n            break;\n        }\n        previous = current;\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render path on\n     */\n    _render: function(ctx) {\n      this._renderPathCommands(ctx);\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * Returns string representation of an instance\n     * @return {String} string representation of an instance\n     */\n    toString: function() {\n      return '#<fabric.Path (' + this.complexity() +\n        '): { \"top\": ' + this.top + ', \"left\": ' + this.left + ' }>';\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return extend(this.callSuper('toObject', propertiesToInclude), {\n        path: this.path.map(function(item) { return item.slice(); }),\n      });\n    },\n\n    /**\n     * Returns dataless object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toDatalessObject: function(propertiesToInclude) {\n      var o = this.toObject(['sourcePath'].concat(propertiesToInclude));\n      if (o.sourcePath) {\n        delete o.path;\n      }\n      return o;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var path = this.path.map(function(path) {\n        return path.join(' ');\n      }).join(' ');\n      return [\n        '<path ', 'COMMON_PARTS',\n        'd=\"', path,\n        '\" stroke-linecap=\"round\" ',\n        '/>\\n'\n      ];\n    },\n\n    _getOffsetTransform: function() {\n      var digits = fabric.Object.NUM_FRACTION_DIGITS;\n      return ' translate(' + toFixed(-this.pathOffset.x, digits) + ', ' +\n          toFixed(-this.pathOffset.y, digits) + ')';\n    },\n\n    /**\n     * Returns svg clipPath representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toClipPathSVG: function(reviver) {\n      var additionalTransform = this._getOffsetTransform();\n      return '\\t' + this._createBaseClipPathSVGMarkup(\n        this._toSVG(), { reviver: reviver, additionalTransform: additionalTransform }\n      );\n    },\n\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toSVG: function(reviver) {\n      var additionalTransform = this._getOffsetTransform();\n      return this._createBaseSVGMarkup(this._toSVG(), { reviver: reviver, additionalTransform: additionalTransform  });\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns number representation of an instance complexity\n     * @return {Number} complexity of this instance\n     */\n    complexity: function() {\n      return this.path.length;\n    },\n\n    /**\n     * @private\n     */\n    _parsePath: function() {\n      var result = [],\n          coords = [],\n          currentPath,\n          parsed,\n          re = fabric.rePathCommand,\n          match,\n          coordsStr;\n\n      for (var i = 0, coordsParsed, len = this.path.length; i < len; i++) {\n        currentPath = this.path[i];\n\n        coordsStr = currentPath.slice(1).trim();\n        coords.length = 0;\n\n        while ((match = re.exec(coordsStr))) {\n          coords.push(match[0]);\n        }\n\n        coordsParsed = [currentPath.charAt(0)];\n\n        for (var j = 0, jlen = coords.length; j < jlen; j++) {\n          parsed = parseFloat(coords[j]);\n          if (!isNaN(parsed)) {\n            coordsParsed.push(parsed);\n          }\n        }\n\n        var command = coordsParsed[0],\n            commandLength = commandLengths[command.toLowerCase()],\n            repeatedCommand = repeatedCommands[command] || command;\n\n        if (coordsParsed.length - 1 > commandLength) {\n          for (var k = 1, klen = coordsParsed.length; k < klen; k += commandLength) {\n            result.push([command].concat(coordsParsed.slice(k, k + commandLength)));\n            command = repeatedCommand;\n          }\n        }\n        else {\n          result.push(coordsParsed);\n        }\n      }\n\n      return result;\n    },\n\n    /**\n     * @private\n     */\n    _calcDimensions: function() {\n\n      var aX = [],\n          aY = [],\n          current, // current instruction\n          previous = null,\n          subpathStartX = 0,\n          subpathStartY = 0,\n          x = 0, // current x\n          y = 0, // current y\n          controlX = 0, // current control point x\n          controlY = 0, // current control point y\n          tempX,\n          tempY,\n          bounds;\n\n      for (var i = 0, len = this.path.length; i < len; ++i) {\n\n        current = this.path[i];\n\n        switch (current[0]) { // first letter\n\n          case 'l': // lineto, relative\n            x += current[1];\n            y += current[2];\n            bounds = [];\n            break;\n\n          case 'L': // lineto, absolute\n            x = current[1];\n            y = current[2];\n            bounds = [];\n            break;\n\n          case 'h': // horizontal lineto, relative\n            x += current[1];\n            bounds = [];\n            break;\n\n          case 'H': // horizontal lineto, absolute\n            x = current[1];\n            bounds = [];\n            break;\n\n          case 'v': // vertical lineto, relative\n            y += current[1];\n            bounds = [];\n            break;\n\n          case 'V': // verical lineto, absolute\n            y = current[1];\n            bounds = [];\n            break;\n\n          case 'm': // moveTo, relative\n            x += current[1];\n            y += current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            bounds = [];\n            break;\n\n          case 'M': // moveTo, absolute\n            x = current[1];\n            y = current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            bounds = [];\n            break;\n\n          case 'c': // bezierCurveTo, relative\n            tempX = x + current[5];\n            tempY = y + current[6];\n            controlX = x + current[3];\n            controlY = y + current[4];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              x + current[1], // x1\n              y + current[2], // y1\n              controlX, // x2\n              controlY, // y2\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'C': // bezierCurveTo, absolute\n            controlX = current[3];\n            controlY = current[4];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              current[1],\n              current[2],\n              controlX,\n              controlY,\n              current[5],\n              current[6]\n            );\n            x = current[5];\n            y = current[6];\n            break;\n\n          case 's': // shorthand cubic bezierCurveTo, relative\n\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              x + current[1],\n              y + current[2],\n              tempX,\n              tempY\n            );\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = x + current[1];\n            controlY = y + current[2];\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'S': // shorthand cubic bezierCurveTo, absolute\n            tempX = current[3];\n            tempY = current[4];\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              current[1],\n              current[2],\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = current[1];\n            controlY = current[2];\n            break;\n\n          case 'q': // quadraticCurveTo, relative\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n            controlX = x + current[1];\n            controlY = y + current[2];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'Q': // quadraticCurveTo, absolute\n            controlX = current[1];\n            controlY = current[2];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              current[3],\n              current[4]\n            );\n            x = current[3];\n            y = current[4];\n            break;\n\n          case 't': // shorthand quadraticCurveTo, relative\n            // transform to absolute x,y\n            tempX = x + current[1];\n            tempY = y + current[2];\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n\n            break;\n\n          case 'T':\n            tempX = current[1];\n            tempY = current[2];\n\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'a':\n            // TODO: optimize this\n            bounds = fabric.util.getBoundsOfArc(x, y,\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6] + x,\n              current[7] + y\n            );\n            x += current[6];\n            y += current[7];\n            break;\n\n          case 'A':\n            // TODO: optimize this\n            bounds = fabric.util.getBoundsOfArc(x, y,\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6],\n              current[7]\n            );\n            x = current[6];\n            y = current[7];\n            break;\n\n          case 'z':\n          case 'Z':\n            x = subpathStartX;\n            y = subpathStartY;\n            break;\n        }\n        previous = current;\n        bounds.forEach(function (point) {\n          aX.push(point.x);\n          aY.push(point.y);\n        });\n        aX.push(x);\n        aY.push(y);\n      }\n\n      var minX = min(aX) || 0,\n          minY = min(aY) || 0,\n          maxX = max(aX) || 0,\n          maxY = max(aY) || 0,\n          deltaX = maxX - minX,\n          deltaY = maxY - minY;\n\n      return {\n        left: minX,\n        top: minY,\n        width: deltaX,\n        height: deltaY\n      };\n    }\n  });\n\n  /**\n   * Creates an instance of fabric.Path from an object\n   * @static\n   * @memberOf fabric.Path\n   * @param {Object} object\n   * @param {Function} [callback] Callback to invoke when an fabric.Path instance is created\n   */\n  fabric.Path.fromObject = function(object, callback) {\n    if (typeof object.sourcePath === 'string') {\n      var pathUrl = object.sourcePath;\n      fabric.loadSVGFromURL(pathUrl, function (elements) {\n        var path = elements[0];\n        path.setOptions(object);\n        callback && callback(path);\n      });\n    }\n    else {\n      fabric.Object._fromObject('Path', object, callback, 'path');\n    }\n  };\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by `fabric.Path.fromElement`)\n   * @static\n   * @memberOf fabric.Path\n   * @see http://www.w3.org/TR/SVG/paths.html#PathElement\n   */\n  fabric.Path.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat(['d']);\n\n  /**\n   * Creates an instance of fabric.Path from an SVG <path> element\n   * @static\n   * @memberOf fabric.Path\n   * @param {SVGElement} element to parse\n   * @param {Function} callback Callback to invoke when an fabric.Path instance is created\n   * @param {Object} [options] Options object\n   * @param {Function} [callback] Options callback invoked after parsing is finished\n   */\n  fabric.Path.fromElement = function(element, callback, options) {\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Path.ATTRIBUTE_NAMES);\n    parsedAttributes.fromSVG = true;\n    callback(new fabric.Path(parsedAttributes.d, extend(parsedAttributes, options)));\n  };\n  /* _FROM_SVG_END_ */\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      min = fabric.util.array.min,\n      max = fabric.util.array.max;\n\n  if (fabric.Group) {\n    return;\n  }\n\n  /**\n   * Group class\n   * @class fabric.Group\n   * @extends fabric.Object\n   * @mixes fabric.Collection\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#groups}\n   * @see {@link fabric.Group#initialize} for constructor definition\n   */\n  fabric.Group = fabric.util.createClass(fabric.Object, fabric.Collection, /** @lends fabric.Group.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'group',\n\n    /**\n     * Width of stroke\n     * @type Number\n     * @default\n     */\n    strokeWidth: 0,\n\n    /**\n     * Indicates if click, mouseover, mouseout events & hoverCursor should also check for subtargets\n     * @type Boolean\n     * @default\n     */\n    subTargetCheck: false,\n\n    /**\n     * Groups are container, do not render anything on theyr own, ence no cache properties\n     * @type Array\n     * @default\n     */\n    cacheProperties: [],\n\n    /**\n     * setOnGroup is a method used for TextBox that is no more used since 2.0.0 The behavior is still\n     * available setting this boolean to true.\n     * @type Boolean\n     * @since 2.0.0\n     * @default\n     */\n    useSetOnGroup: false,\n\n    /**\n     * Constructor\n     * @param {Object} objects Group objects\n     * @param {Object} [options] Options object\n     * @param {Boolean} [isAlreadyGrouped] if true, objects have been grouped already.\n     * @return {Object} thisArg\n     */\n    initialize: function(objects, options, isAlreadyGrouped) {\n      options = options || {};\n      this._objects = [];\n      // if objects enclosed in a group have been grouped already,\n      // we cannot change properties of objects.\n      // Thus we need to set options to group without objects,\n      isAlreadyGrouped && this.callSuper('initialize', options);\n      this._objects = objects || [];\n      for (var i = this._objects.length; i--; ) {\n        this._objects[i].group = this;\n      }\n\n      if (!isAlreadyGrouped) {\n        var center = options && options.centerPoint;\n        // we want to set origins before calculating the bounding box.\n        // so that the topleft can be set with that in mind.\n        // if specific top and left are passed, are overwritten later\n        // with the callSuper('initialize', options)\n        if (options.originX !== undefined) {\n          this.originX = options.originX;\n        }\n        if (options.originY !== undefined) {\n          this.originY = options.originY;\n        }\n        // if coming from svg i do not want to calc bounds.\n        // i assume width and height are passed along options\n        center || this._calcBounds();\n        this._updateObjectsCoords(center);\n        delete options.centerPoint;\n        this.callSuper('initialize', options);\n      }\n      else {\n        this._updateObjectsACoords();\n      }\n\n      this.setCoords();\n    },\n\n    /**\n     * @private\n     * @param {Boolean} [skipCoordsChange] if true, coordinates of objects enclosed in a group do not change\n     */\n    _updateObjectsACoords: function() {\n      var ignoreZoom = true, skipAbsolute = true;\n      for (var i = this._objects.length; i--; ){\n        this._objects[i].setCoords(ignoreZoom, skipAbsolute);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Boolean} [skipCoordsChange] if true, coordinates of objects enclosed in a group do not change\n     */\n    _updateObjectsCoords: function(center) {\n      var center = center || this.getCenterPoint();\n      for (var i = this._objects.length; i--; ){\n        this._updateObjectCoords(this._objects[i], center);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Object} object\n     * @param {fabric.Point} center, current center of group.\n     */\n    _updateObjectCoords: function(object, center) {\n      var objectLeft = object.left,\n          objectTop = object.top,\n          ignoreZoom = true, skipAbsolute = true;\n\n      object.set({\n        left: objectLeft - center.x,\n        top: objectTop - center.y\n      });\n      object.group = this;\n      object.setCoords(ignoreZoom, skipAbsolute);\n    },\n\n    /**\n     * Returns string represenation of a group\n     * @return {String}\n     */\n    toString: function() {\n      return '#<fabric.Group: (' + this.complexity() + ')>';\n    },\n\n    /**\n     * Adds an object to a group; Then recalculates group's dimension, position.\n     * @param {Object} object\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    addWithUpdate: function(object) {\n      this._restoreObjectsState();\n      fabric.util.resetObjectTransform(this);\n      if (object) {\n        this._objects.push(object);\n        object.group = this;\n        object._set('canvas', this.canvas);\n      }\n      this._calcBounds();\n      this._updateObjectsCoords();\n      this.setCoords();\n      this.dirty = true;\n      return this;\n    },\n\n    /**\n     * Removes an object from a group; Then recalculates group's dimension, position.\n     * @param {Object} object\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    removeWithUpdate: function(object) {\n      this._restoreObjectsState();\n      fabric.util.resetObjectTransform(this);\n\n      this.remove(object);\n      this._calcBounds();\n      this._updateObjectsCoords();\n      this.setCoords();\n      this.dirty = true;\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _onObjectAdded: function(object) {\n      this.dirty = true;\n      object.group = this;\n      object._set('canvas', this.canvas);\n    },\n\n    /**\n     * @private\n     */\n    _onObjectRemoved: function(object) {\n      this.dirty = true;\n      delete object.group;\n    },\n\n    /**\n     * @private\n     */\n    _set: function(key, value) {\n      var i = this._objects.length;\n      if (this.useSetOnGroup) {\n        while (i--) {\n          this._objects[i].setOnGroup(key, value);\n        }\n      }\n      if (key === 'canvas') {\n        while (i--) {\n          this._objects[i]._set(key, value);\n        }\n      }\n      fabric.Object.prototype._set.call(this, key, value);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var _includeDefaultValues = this.includeDefaultValues;\n      var objsToObject = this._objects.map(function(obj) {\n        var originalDefaults = obj.includeDefaultValues;\n        obj.includeDefaultValues = _includeDefaultValues;\n        var _obj = obj.toObject(propertiesToInclude);\n        obj.includeDefaultValues = originalDefaults;\n        return _obj;\n      });\n      var obj = fabric.Object.prototype.toObject.call(this, propertiesToInclude);\n      obj.objects = objsToObject;\n      return obj;\n    },\n\n    /**\n     * Returns object representation of an instance, in dataless mode.\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toDatalessObject: function(propertiesToInclude) {\n      var objsToObject, sourcePath = this.sourcePath;\n      if (sourcePath) {\n        objsToObject = sourcePath;\n      }\n      else {\n        var _includeDefaultValues = this.includeDefaultValues;\n        objsToObject = this._objects.map(function(obj) {\n          var originalDefaults = obj.includeDefaultValues;\n          obj.includeDefaultValues = _includeDefaultValues;\n          var _obj = obj.toDatalessObject(propertiesToInclude);\n          obj.includeDefaultValues = originalDefaults;\n          return _obj;\n        });\n      }\n      var obj = fabric.Object.prototype.toDatalessObject.call(this, propertiesToInclude);\n      obj.objects = objsToObject;\n      return obj;\n    },\n\n    /**\n     * Renders instance on a given context\n     * @param {CanvasRenderingContext2D} ctx context to render instance on\n     */\n    render: function(ctx) {\n      this._transformDone = true;\n      this.callSuper('render', ctx);\n      this._transformDone = false;\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group is already cached.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      var ownCache = fabric.Object.prototype.shouldCache.call(this);\n      if (ownCache) {\n        for (var i = 0, len = this._objects.length; i < len; i++) {\n          if (this._objects[i].willDrawShadow()) {\n            this.ownCaching = false;\n            return false;\n          }\n        }\n      }\n      return ownCache;\n    },\n\n    /**\n     * Check if this object or a child object will cast a shadow\n     * @return {Boolean}\n     */\n    willDrawShadow: function() {\n      if (fabric.Object.prototype.willDrawShadow.call(this)) {\n        return true;\n      }\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        if (this._objects[i].willDrawShadow()) {\n          return true;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Check if this group or its parent group are caching, recursively up\n     * @return {Boolean}\n     */\n    isOnACache: function() {\n      return this.ownCaching || (this.group && this.group.isOnACache());\n    },\n\n    /**\n     * Execute the drawing operation for an object on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawObject: function(ctx) {\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        this._objects[i].render(ctx);\n      }\n      this._drawClipPath(ctx);\n    },\n\n    /**\n     * Check if cache is dirty\n     */\n    isCacheDirty: function(skipCanvas) {\n      if (this.callSuper('isCacheDirty', skipCanvas)) {\n        return true;\n      }\n      if (!this.statefullCache) {\n        return false;\n      }\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        if (this._objects[i].isCacheDirty(true)) {\n          if (this._cacheCanvas) {\n            // if this group has not a cache canvas there is nothing to clean\n            var x = this.cacheWidth / this.zoomX, y = this.cacheHeight / this.zoomY;\n            this._cacheContext.clearRect(-x / 2, -y / 2, x, y);\n          }\n          return true;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Retores original state of each of group objects (original state is that which was before group was created).\n     * @private\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    _restoreObjectsState: function() {\n      this._objects.forEach(this._restoreObjectState, this);\n      return this;\n    },\n\n    /**\n     * Realises the transform from this group onto the supplied object\n     * i.e. it tells you what would happen if the supplied object was in\n     * the group, and then the group was destroyed. It mutates the supplied\n     * object.\n     * @param {fabric.Object} object\n     * @return {fabric.Object} transformedObject\n     */\n    realizeTransform: function(object) {\n      var matrix = object.calcTransformMatrix(),\n          options = fabric.util.qrDecompose(matrix),\n          center = new fabric.Point(options.translateX, options.translateY);\n      object.flipX = false;\n      object.flipY = false;\n      object.set('scaleX', options.scaleX);\n      object.set('scaleY', options.scaleY);\n      object.skewX = options.skewX;\n      object.skewY = options.skewY;\n      object.angle = options.angle;\n      object.setPositionByOrigin(center, 'center', 'center');\n      return object;\n    },\n\n    /**\n     * Restores original state of a specified object in group\n     * @private\n     * @param {fabric.Object} object\n     * @return {fabric.Group} thisArg\n     */\n    _restoreObjectState: function(object) {\n      this.realizeTransform(object);\n      object.setCoords();\n      delete object.group;\n      return this;\n    },\n\n    /**\n     * Destroys a group (restoring state of its objects)\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    destroy: function() {\n      // when group is destroyed objects needs to get a repaint to be eventually\n      // displayed on canvas.\n      this._objects.forEach(function(object) {\n        object.set('dirty', true);\n      });\n      return this._restoreObjectsState();\n    },\n\n    /**\n     * make a group an active selection, remove the group from canvas\n     * the group has to be on canvas for this to work.\n     * @return {fabric.ActiveSelection} thisArg\n     * @chainable\n     */\n    toActiveSelection: function() {\n      if (!this.canvas) {\n        return;\n      }\n      var objects = this._objects, canvas = this.canvas;\n      this._objects = [];\n      var options = this.toObject();\n      delete options.objects;\n      var activeSelection = new fabric.ActiveSelection([]);\n      activeSelection.set(options);\n      activeSelection.type = 'activeSelection';\n      canvas.remove(this);\n      objects.forEach(function(object) {\n        object.group = activeSelection;\n        object.dirty = true;\n        canvas.add(object);\n      });\n      activeSelection.canvas = canvas;\n      activeSelection._objects = objects;\n      canvas._activeObject = activeSelection;\n      activeSelection.setCoords();\n      return activeSelection;\n    },\n\n    /**\n     * Destroys a group (restoring state of its objects)\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    ungroupOnCanvas: function() {\n      return this._restoreObjectsState();\n    },\n\n    /**\n     * Sets coordinates of all objects inside group\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    setObjectsCoords: function() {\n      var ignoreZoom = true, skipAbsolute = true;\n      this.forEachObject(function(object) {\n        object.setCoords(ignoreZoom, skipAbsolute);\n      });\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _calcBounds: function(onlyWidthHeight) {\n      var aX = [],\n          aY = [],\n          o, prop,\n          props = ['tr', 'br', 'bl', 'tl'],\n          i = 0, iLen = this._objects.length,\n          j, jLen = props.length,\n          ignoreZoom = true;\n\n      for ( ; i < iLen; ++i) {\n        o = this._objects[i];\n        o.setCoords(ignoreZoom);\n        for (j = 0; j < jLen; j++) {\n          prop = props[j];\n          aX.push(o.oCoords[prop].x);\n          aY.push(o.oCoords[prop].y);\n        }\n      }\n\n      this._getBounds(aX, aY, onlyWidthHeight);\n    },\n\n    /**\n     * @private\n     */\n    _getBounds: function(aX, aY, onlyWidthHeight) {\n      var minXY = new fabric.Point(min(aX), min(aY)),\n          maxXY = new fabric.Point(max(aX), max(aY)),\n          top = minXY.y || 0, left = minXY.x || 0,\n          width = (maxXY.x - minXY.x) || 0,\n          height = (maxXY.y - minXY.y) || 0;\n      this.width = width;\n      this.height = height;\n      if (!onlyWidthHeight) {\n        // the bounding box always finds the topleft most corner.\n        // whatever is the group origin, we set up here the left/top position.\n        this.setPositionByOrigin({ x: left, y: top }, 'left', 'top');\n      }\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    _toSVG: function(reviver) {\n      var svgString = ['<g ', 'COMMON_PARTS', ' >\\n'];\n\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        svgString.push('\\t\\t', this._objects[i].toSVG(reviver));\n      }\n      svgString.push('</g>\\n');\n      return svgString;\n    },\n\n    /**\n     * Returns styles-string for svg-export, specific version for group\n     * @return {String}\n     */\n    getSvgStyles: function() {\n      var opacity = typeof this.opacity !== 'undefined' && this.opacity !== 1 ?\n            'opacity: ' + this.opacity + ';' : '',\n          visibility = this.visible ? '' : ' visibility: hidden;';\n      return [\n        opacity,\n        this.getSvgFilter(),\n        visibility\n      ].join('');\n    },\n\n    /**\n     * Returns svg clipPath representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toClipPathSVG: function(reviver) {\n      var svgString = [];\n\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        svgString.push('\\t', this._objects[i].toClipPathSVG(reviver));\n      }\n\n      return this._createBaseClipPathSVGMarkup(svgString, { reviver: reviver });\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /**\n   * Returns {@link fabric.Group} instance from an object representation\n   * @static\n   * @memberOf fabric.Group\n   * @param {Object} object Object to create a group from\n   * @param {Function} [callback] Callback to invoke when an group instance is created\n   */\n  fabric.Group.fromObject = function(object, callback) {\n    var objects = object.objects,\n        options = fabric.util.object.clone(object, true);\n    delete options.objects;\n    if (typeof objects === 'string') {\n      // it has to be an url or something went wrong.\n      fabric.loadSVGFromURL(objects, function (elements) {\n        var group = fabric.util.groupSVGElements(elements, object, objects);\n        group.set(options);\n        callback && callback(group);\n      });\n      return;\n    }\n    fabric.util.enlivenObjects(objects, function(enlivenedObjects) {\n      fabric.util.enlivenObjects([object.clipPath], function(enlivedClipPath) {\n        var options = fabric.util.object.clone(object, true);\n        options.clipPath = enlivedClipPath[0];\n        delete options.objects;\n        callback && callback(new fabric.Group(enlivenedObjects, options, true));\n      });\n    });\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.ActiveSelection) {\n    return;\n  }\n\n  /**\n   * Group class\n   * @class fabric.ActiveSelection\n   * @extends fabric.Group\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#groups}\n   * @see {@link fabric.ActiveSelection#initialize} for constructor definition\n   */\n  fabric.ActiveSelection = fabric.util.createClass(fabric.Group, /** @lends fabric.ActiveSelection.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'activeSelection',\n\n    /**\n     * Constructor\n     * @param {Object} objects ActiveSelection objects\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(objects, options) {\n      options = options || {};\n      this._objects = objects || [];\n      for (var i = this._objects.length; i--; ) {\n        this._objects[i].group = this;\n      }\n\n      if (options.originX) {\n        this.originX = options.originX;\n      }\n      if (options.originY) {\n        this.originY = options.originY;\n      }\n      this._calcBounds();\n      this._updateObjectsCoords();\n      fabric.Object.prototype.initialize.call(this, options);\n      this.setCoords();\n    },\n\n    /**\n     * Change te activeSelection to a normal group,\n     * High level function that automatically adds it to canvas as\n     * active object. no events fired.\n     * @since 2.0.0\n     * @return {fabric.Group}\n     */\n    toGroup: function() {\n      var objects = this._objects.concat();\n      this._objects = [];\n      var options = fabric.Object.prototype.toObject.call(this);\n      var newGroup = new fabric.Group([]);\n      delete options.type;\n      newGroup.set(options);\n      objects.forEach(function(object) {\n        object.canvas.remove(object);\n        object.group = newGroup;\n      });\n      newGroup._objects = objects;\n      if (!this.canvas) {\n        return newGroup;\n      }\n      var canvas = this.canvas;\n      canvas.add(newGroup);\n      canvas._activeObject = newGroup;\n      newGroup.setCoords();\n      return newGroup;\n    },\n\n    /**\n     * If returns true, deselection is cancelled.\n     * @since 2.0.0\n     * @return {Boolean} [cancel]\n     */\n    onDeselect: function() {\n      this.destroy();\n      return false;\n    },\n\n    /**\n     * Returns string representation of a group\n     * @return {String}\n     */\n    toString: function() {\n      return '#<fabric.ActiveSelection: (' + this.complexity() + ')>';\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * objectCaching is a global flag, wins over everything\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group outside is cached.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      return false;\n    },\n\n    /**\n     * Check if this group or its parent group are caching, recursively up\n     * @return {Boolean}\n     */\n    isOnACache: function() {\n      return false;\n    },\n\n    /**\n     * Renders controls and borders for the object\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} [styleOverride] properties to override the object style\n     * @param {Object} [childrenOverride] properties to override the children overrides\n     */\n    _renderControls: function(ctx, styleOverride, childrenOverride) {\n      ctx.save();\n      ctx.globalAlpha = this.isMoving ? this.borderOpacityWhenMoving : 1;\n      this.callSuper('_renderControls', ctx, styleOverride);\n      childrenOverride = childrenOverride || { };\n      if (typeof childrenOverride.hasControls === 'undefined') {\n        childrenOverride.hasControls = false;\n      }\n      if (typeof childrenOverride.hasRotatingPoint === 'undefined') {\n        childrenOverride.hasRotatingPoint = false;\n      }\n      childrenOverride.forActiveSelection = true;\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        this._objects[i]._renderControls(ctx, childrenOverride);\n      }\n      ctx.restore();\n    },\n  });\n\n  /**\n   * Returns {@link fabric.ActiveSelection} instance from an object representation\n   * @static\n   * @memberOf fabric.ActiveSelection\n   * @param {Object} object Object to create a group from\n   * @param {Function} [callback] Callback to invoke when an ActiveSelection instance is created\n   */\n  fabric.ActiveSelection.fromObject = function(object, callback) {\n    fabric.util.enlivenObjects(object.objects, function(enlivenedObjects) {\n      delete object.objects;\n      callback && callback(new fabric.ActiveSelection(enlivenedObjects, object, true));\n    });\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var extend = fabric.util.object.extend;\n\n  if (!global.fabric) {\n    global.fabric = { };\n  }\n\n  if (global.fabric.Image) {\n    fabric.warn('fabric.Image is already defined.');\n    return;\n  }\n\n  /**\n   * Image class\n   * @class fabric.Image\n   * @extends fabric.Object\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#images}\n   * @see {@link fabric.Image#initialize} for constructor definition\n   */\n  fabric.Image = fabric.util.createClass(fabric.Object, /** @lends fabric.Image.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'image',\n\n    /**\n     * crossOrigin value (one of \"\", \"anonymous\", \"use-credentials\")\n     * @see https://developer.mozilla.org/en-US/docs/HTML/CORS_settings_attributes\n     * @type String\n     * @default\n     */\n    crossOrigin: '',\n\n    /**\n     * Width of a stroke.\n     * For image quality a stroke multiple of 2 gives better results.\n     * @type Number\n     * @default\n     */\n    strokeWidth: 0,\n\n    /**\n     * When calling {@link fabric.Image.getSrc}, return value from element src with `element.getAttribute('src')`.\n     * This allows for relative urls as image src.\n     * @since 2.7.0\n     * @type Boolean\n     * @default\n     */\n    srcFromAttribute: false,\n\n    /**\n     * private\n     * contains last value of scaleX to detect\n     * if the Image got resized after the last Render\n     * @type Number\n     */\n    _lastScaleX: 1,\n\n    /**\n     * private\n     * contains last value of scaleY to detect\n     * if the Image got resized after the last Render\n     * @type Number\n     */\n    _lastScaleY: 1,\n\n    /**\n     * private\n     * contains last value of scaling applied by the apply filter chain\n     * @type Number\n     */\n    _filterScalingX: 1,\n\n    /**\n     * private\n     * contains last value of scaling applied by the apply filter chain\n     * @type Number\n     */\n    _filterScalingY: 1,\n\n    /**\n     * minimum scale factor under which any resizeFilter is triggered to resize the image\n     * 0 will disable the automatic resize. 1 will trigger automatically always.\n     * number bigger than 1 are not implemented yet.\n     * @type Number\n     */\n    minimumScaleTrigger: 0.5,\n\n    /**\n     * List of properties to consider when checking if\n     * state of an object is changed ({@link fabric.Object#hasStateChanged})\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: fabric.Object.prototype.stateProperties.concat('cropX', 'cropY'),\n\n    /**\n     * key used to retrieve the texture representing this image\n     * @since 2.0.0\n     * @type String\n     * @default\n     */\n    cacheKey: '',\n\n    /**\n     * Image crop in pixels from original image size.\n     * @since 2.0.0\n     * @type Number\n     * @default\n     */\n    cropX: 0,\n\n    /**\n     * Image crop in pixels from original image size.\n     * @since 2.0.0\n     * @type Number\n     * @default\n     */\n    cropY: 0,\n\n    /**\n     * Constructor\n     * @param {HTMLImageElement | String} element Image element\n     * @param {Object} [options] Options object\n     * @param {function} [callback] callback function to call after eventual filters applied.\n     * @return {fabric.Image} thisArg\n     */\n    initialize: function(element, options) {\n      options || (options = { });\n      this.filters = [];\n      this.cacheKey = 'texture' + fabric.Object.__uid++;\n      this.callSuper('initialize', options);\n      this._initElement(element, options);\n    },\n\n    /**\n     * Returns image element which this instance if based on\n     * @return {HTMLImageElement} Image element\n     */\n    getElement: function() {\n      return this._element || {};\n    },\n\n    /**\n     * Sets image element for this instance to a specified one.\n     * If filters defined they are applied to new image.\n     * You might need to call `canvas.renderAll` and `object.setCoords` after replacing, to render new image and update controls area.\n     * @param {HTMLImageElement} element\n     * @param {Object} [options] Options object\n     * @return {fabric.Image} thisArg\n     * @chainable\n     */\n    setElement: function(element, options) {\n      this.removeTexture(this.cacheKey);\n      this.removeTexture(this.cacheKey + '_filtered');\n      this._element = element;\n      this._originalElement = element;\n      this._initConfig(options);\n      if (this.filters.length !== 0) {\n        this.applyFilters();\n      }\n      // resizeFilters work on the already filtered copy.\n      // we need to apply resizeFilters AFTER normal filters.\n      // applyResizeFilters is run more often than normal fiters\n      // and is triggered by user interactions rather than dev code\n      if (this.resizeFilter) {\n        this.applyResizeFilters();\n      }\n      return this;\n    },\n\n    /**\n     * Delete a single texture if in webgl mode\n     */\n    removeTexture: function(key) {\n      var backend = fabric.filterBackend;\n      if (backend && backend.evictCachesForKey) {\n        backend.evictCachesForKey(key);\n      }\n    },\n\n    /**\n     * Delete textures, reference to elements and eventually JSDOM cleanup\n     */\n    dispose: function() {\n      this.removeTexture(this.cacheKey);\n      this.removeTexture(this.cacheKey + '_filtered');\n      this._cacheContext = undefined;\n      ['_originalElement', '_element', '_filteredEl', '_cacheCanvas'].forEach((function(element) {\n        fabric.util.cleanUpJsdomNode(this[element]);\n        this[element] = undefined;\n      }).bind(this));\n    },\n\n    /**\n     * Sets crossOrigin value (on an instance and corresponding image element)\n     * @return {fabric.Image} thisArg\n     * @chainable\n     */\n    setCrossOrigin: function(value) {\n      this.crossOrigin = value;\n      this._element.crossOrigin = value;\n\n      return this;\n    },\n\n    /**\n     * Returns original size of an image\n     * @return {Object} Object with \"width\" and \"height\" properties\n     */\n    getOriginalSize: function() {\n      var element = this.getElement();\n      return {\n        width: element.naturalWidth || element.width,\n        height: element.naturalHeight || element.height\n      };\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _stroke: function(ctx) {\n      if (!this.stroke || this.strokeWidth === 0) {\n        return;\n      }\n      var w = this.width / 2, h = this.height / 2;\n      ctx.beginPath();\n      ctx.moveTo(-w, -h);\n      ctx.lineTo(w, -h);\n      ctx.lineTo(w, h);\n      ctx.lineTo(-w, h);\n      ctx.lineTo(-w, -h);\n      ctx.closePath();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var x = -this.width / 2,\n          y = -this.height / 2,\n          w = this.width,\n          h = this.height;\n\n      ctx.save();\n      this._setStrokeStyles(ctx, this);\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, x, y, x + w, y, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y, x + w, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y + h, x, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x, y + h, x, y, this.strokeDashArray);\n      ctx.closePath();\n      ctx.restore();\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var filters = [];\n\n      this.filters.forEach(function(filterObj) {\n        if (filterObj) {\n          filters.push(filterObj.toObject());\n        }\n      });\n      var object = extend(\n        this.callSuper(\n          'toObject',\n          ['crossOrigin', 'cropX', 'cropY'].concat(propertiesToInclude)\n        ), {\n          src: this.getSrc(),\n          filters: filters,\n        });\n      if (this.resizeFilter) {\n        object.resizeFilter = this.resizeFilter.toObject();\n      }\n      return object;\n    },\n\n    /**\n     * Returns true if an image has crop applied, inspecting values of cropX,cropY,width,hight.\n     * @return {Boolean}\n     */\n    hasCrop: function() {\n      return this.cropX || this.cropY || this.width < this._element.width || this.height < this._element.height;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var svgString = [], imageMarkup = [], strokeSvg,\n          x = -this.width / 2, y = -this.height / 2, clipPath = '';\n      if (this.hasCrop()) {\n        var clipPathId = fabric.Object.__uid++;\n        svgString.push(\n          '<clipPath id=\"imageCrop_' + clipPathId + '\">\\n',\n          '\\t<rect x=\"' + x + '\" y=\"' + y + '\" width=\"' + this.width + '\" height=\"' + this.height + '\" />\\n',\n          '</clipPath>\\n'\n        );\n        clipPath = ' clip-path=\"url(#imageCrop_' + clipPathId + ')\" ';\n      }\n      imageMarkup.push('\\t<image ', 'COMMON_PARTS', 'xlink:href=\"', this.getSvgSrc(true),\n        '\" x=\"', x - this.cropX, '\" y=\"', y - this.cropY,\n        // we're essentially moving origin of transformation from top/left corner to the center of the shape\n        // by wrapping it in container <g> element with actual transformation, then offsetting object to the top/left\n        // so that object's center aligns with container's left/top\n        '\" width=\"', this._element.width || this._element.naturalWidth,\n        '\" height=\"', this._element.height || this._element.height,\n        '\"', clipPath,\n        '></image>\\n');\n\n      if (this.stroke || this.strokeDashArray) {\n        var origFill = this.fill;\n        this.fill = null;\n        strokeSvg = [\n          '\\t<rect ',\n          'x=\"', x, '\" y=\"', y,\n          '\" width=\"', this.width, '\" height=\"', this.height,\n          '\" style=\"', this.getSvgStyles(),\n          '\"/>\\n'\n        ];\n        this.fill = origFill;\n      }\n      if (this.paintFirst !== 'fill') {\n        svgString = svgString.concat(strokeSvg, imageMarkup);\n      }\n      else {\n        svgString = svgString.concat(imageMarkup, strokeSvg);\n      }\n      return svgString;\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns source of an image\n     * @param {Boolean} filtered indicates if the src is needed for svg\n     * @return {String} Source of an image\n     */\n    getSrc: function(filtered) {\n      var element = filtered ? this._element : this._originalElement;\n      if (element) {\n        if (element.toDataURL) {\n          return element.toDataURL();\n        }\n\n        if (this.srcFromAttribute) {\n          return element.getAttribute('src');\n        }\n        else {\n          return element.src;\n        }\n      }\n      else {\n        return this.src || '';\n      }\n    },\n\n    /**\n     * Sets source of an image\n     * @param {String} src Source string (URL)\n     * @param {Function} [callback] Callback is invoked when image has been loaded (and all filters have been applied)\n     * @param {Object} [options] Options object\n     * @return {fabric.Image} thisArg\n     * @chainable\n     */\n    setSrc: function(src, callback, options) {\n      fabric.util.loadImage(src, function(img) {\n        this.setElement(img, options);\n        this._setWidthHeight();\n        callback && callback(this);\n      }, this, options && options.crossOrigin);\n      return this;\n    },\n\n    /**\n     * Returns string representation of an instance\n     * @return {String} String representation of an instance\n     */\n    toString: function() {\n      return '#<fabric.Image: { src: \"' + this.getSrc() + '\" }>';\n    },\n\n    applyResizeFilters: function() {\n      var filter = this.resizeFilter,\n          minimumScale = this.minimumScaleTrigger,\n          objectScale = this.getTotalObjectScaling(),\n          scaleX = objectScale.scaleX,\n          scaleY = objectScale.scaleY,\n          elementToFilter = this._filteredEl || this._originalElement;\n      if (this.group) {\n        this.set('dirty', true);\n      }\n      if (!filter || (scaleX > minimumScale && scaleY > minimumScale)) {\n        this._element = elementToFilter;\n        this._filterScalingX = 1;\n        this._filterScalingY = 1;\n        this._lastScaleX = scaleX;\n        this._lastScaleY = scaleY;\n        return;\n      }\n      if (!fabric.filterBackend) {\n        fabric.filterBackend = fabric.initFilterBackend();\n      }\n      var canvasEl = fabric.util.createCanvasElement(),\n          cacheKey = this._filteredEl ? (this.cacheKey + '_filtered') : this.cacheKey,\n          sourceWidth = elementToFilter.width, sourceHeight = elementToFilter.height;\n      canvasEl.width = sourceWidth;\n      canvasEl.height = sourceHeight;\n      this._element = canvasEl;\n      this._lastScaleX = filter.scaleX = scaleX;\n      this._lastScaleY = filter.scaleY = scaleY;\n      fabric.filterBackend.applyFilters(\n        [filter], elementToFilter, sourceWidth, sourceHeight, this._element, cacheKey);\n      this._filterScalingX = canvasEl.width / this._originalElement.width;\n      this._filterScalingY = canvasEl.height / this._originalElement.height;\n    },\n\n    /**\n     * Applies filters assigned to this image (from \"filters\" array) or from filter param\n     * @method applyFilters\n     * @param {Array} filters to be applied\n     * @param {Boolean} forResizing specify if the filter operation is a resize operation\n     * @return {thisArg} return the fabric.Image object\n     * @chainable\n     */\n    applyFilters: function(filters) {\n\n      filters = filters || this.filters || [];\n      filters = filters.filter(function(filter) { return filter && !filter.isNeutralState(); });\n      this.set('dirty', true);\n\n      // needs to clear out or WEBGL will not resize correctly\n      this.removeTexture(this.cacheKey + '_filtered');\n\n      if (filters.length === 0) {\n        this._element = this._originalElement;\n        this._filteredEl = null;\n        this._filterScalingX = 1;\n        this._filterScalingY = 1;\n        return this;\n      }\n\n      var imgElement = this._originalElement,\n          sourceWidth = imgElement.naturalWidth || imgElement.width,\n          sourceHeight = imgElement.naturalHeight || imgElement.height;\n\n      if (this._element === this._originalElement) {\n        // if the element is the same we need to create a new element\n        var canvasEl = fabric.util.createCanvasElement();\n        canvasEl.width = sourceWidth;\n        canvasEl.height = sourceHeight;\n        this._element = canvasEl;\n        this._filteredEl = canvasEl;\n      }\n      else {\n        // clear the existing element to get new filter data\n        // also dereference the eventual resized _element\n        this._element = this._filteredEl;\n        this._filteredEl.getContext('2d').clearRect(0, 0, sourceWidth, sourceHeight);\n        // we also need to resize again at next renderAll, so remove saved _lastScaleX/Y\n        this._lastScaleX = 1;\n        this._lastScaleY = 1;\n      }\n      if (!fabric.filterBackend) {\n        fabric.filterBackend = fabric.initFilterBackend();\n      }\n      fabric.filterBackend.applyFilters(\n        filters, this._originalElement, sourceWidth, sourceHeight, this._element, this.cacheKey);\n      if (this._originalElement.width !== this._element.width ||\n        this._originalElement.height !== this._element.height) {\n        this._filterScalingX = this._element.width / this._originalElement.width;\n        this._filterScalingY = this._element.height / this._originalElement.height;\n      }\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      if (this.isMoving !== true && this.resizeFilter && this._needsResize()) {\n        this.applyResizeFilters();\n      }\n      this._stroke(ctx);\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group outside is cached.\n     * This is the special image version where we would like to avoid caching where possible.\n     * Essentially images do not benefit from caching. They may require caching, and in that\n     * case we do it. Also caching an image usually ends in a loss of details.\n     * A full performance audit should be done.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      return this.needsItsOwnCache();\n    },\n\n    _renderFill: function(ctx) {\n      var elementToDraw = this._element;\n      if (!elementToDraw) {\n        return;\n      }\n      var scaleX = this._filterScalingX, scaleY = this._filterScalingY,\n          w = this.width, h = this.height, min = Math.min, max = Math.max,\n          // crop values cannot be lesser than 0.\n          cropX = max(this.cropX, 0), cropY = max(this.cropY, 0),\n          elWidth = elementToDraw.naturalWidth || elementToDraw.width,\n          elHeight = elementToDraw.naturalHeight || elementToDraw.height,\n          sX = cropX * scaleX,\n          sY = cropY * scaleY,\n          // the width height cannot exceed element width/height, starting from the crop offset.\n          sW = min(w * scaleX, elWidth - sX),\n          sH = min(h * scaleY, elHeight - sY),\n          x = -w / 2, y = -h / 2,\n          maxDestW = min(w, elWidth / scaleX - cropX),\n          maxDestH = min(h, elHeight / scaleX - cropY);\n\n      elementToDraw && ctx.drawImage(elementToDraw, sX, sY, sW, sH, x, y, maxDestW, maxDestH);\n    },\n\n    /**\n     * needed to check if image needs resize\n     * @private\n     */\n    _needsResize: function() {\n      var scale = this.getTotalObjectScaling();\n      return (scale.scaleX !== this._lastScaleX || scale.scaleY !== this._lastScaleY);\n    },\n\n    /**\n     * @private\n     */\n    _resetWidthHeight: function() {\n      this.set(this.getOriginalSize());\n    },\n\n    /**\n     * The Image class's initialization method. This method is automatically\n     * called by the constructor.\n     * @private\n     * @param {HTMLImageElement|String} element The element representing the image\n     * @param {Object} [options] Options object\n     */\n    _initElement: function(element, options) {\n      this.setElement(fabric.util.getById(element), options);\n      fabric.util.addClass(this.getElement(), fabric.Image.CSS_CANVAS);\n    },\n\n    /**\n     * @private\n     * @param {Object} [options] Options object\n     */\n    _initConfig: function(options) {\n      options || (options = { });\n      this.setOptions(options);\n      this._setWidthHeight(options);\n      if (this._element && this.crossOrigin) {\n        this._element.crossOrigin = this.crossOrigin;\n      }\n    },\n\n    /**\n     * @private\n     * @param {Array} filters to be initialized\n     * @param {Function} callback Callback to invoke when all fabric.Image.filters instances are created\n     */\n    _initFilters: function(filters, callback) {\n      if (filters && filters.length) {\n        fabric.util.enlivenObjects(filters, function(enlivenedObjects) {\n          callback && callback(enlivenedObjects);\n        }, 'fabric.Image.filters');\n      }\n      else {\n        callback && callback();\n      }\n    },\n\n    /**\n     * @private\n     * Set the width and the height of the image object, using the element or the\n     * options.\n     * @param {Object} [options] Object with width/height properties\n     */\n    _setWidthHeight: function(options) {\n      options || (options = { });\n      var el = this.getElement();\n      this.width = options.width || el.naturalWidth || el.width || 0;\n      this.height = options.height || el.naturalHeight || el.height || 0;\n    },\n\n    /**\n     * Calculate offset for center and scale factor for the image in order to respect\n     * the preserveAspectRatio attribute\n     * @private\n     * @return {Object}\n     */\n    parsePreserveAspectRatioAttribute: function() {\n      var pAR = fabric.util.parsePreserveAspectRatioAttribute(this.preserveAspectRatio || ''),\n          rWidth = this._element.width, rHeight = this._element.height,\n          scaleX = 1, scaleY = 1, offsetLeft = 0, offsetTop = 0, cropX = 0, cropY = 0,\n          offset, pWidth = this.width, pHeight = this.height, parsedAttributes = { width: pWidth, height: pHeight };\n      if (pAR && (pAR.alignX !== 'none' || pAR.alignY !== 'none')) {\n        if (pAR.meetOrSlice === 'meet') {\n          scaleX = scaleY = fabric.util.findScaleToFit(this._element, parsedAttributes);\n          offset = (pWidth - rWidth * scaleX) / 2;\n          if (pAR.alignX === 'Min') {\n            offsetLeft = -offset;\n          }\n          if (pAR.alignX === 'Max') {\n            offsetLeft = offset;\n          }\n          offset = (pHeight - rHeight * scaleY) / 2;\n          if (pAR.alignY === 'Min') {\n            offsetTop = -offset;\n          }\n          if (pAR.alignY === 'Max') {\n            offsetTop = offset;\n          }\n        }\n        if (pAR.meetOrSlice === 'slice') {\n          scaleX = scaleY = fabric.util.findScaleToCover(this._element, parsedAttributes);\n          offset = rWidth - pWidth / scaleX;\n          if (pAR.alignX === 'Mid') {\n            cropX = offset / 2;\n          }\n          if (pAR.alignX === 'Max') {\n            cropX = offset;\n          }\n          offset = rHeight - pHeight / scaleY;\n          if (pAR.alignY === 'Mid') {\n            cropY = offset / 2;\n          }\n          if (pAR.alignY === 'Max') {\n            cropY = offset;\n          }\n          rWidth = pWidth / scaleX;\n          rHeight = pHeight / scaleY;\n        }\n      }\n      else {\n        scaleX = pWidth / rWidth;\n        scaleY = pHeight / rHeight;\n      }\n      return {\n        width: rWidth,\n        height: rHeight,\n        scaleX: scaleX,\n        scaleY: scaleY,\n        offsetLeft: offsetLeft,\n        offsetTop: offsetTop,\n        cropX: cropX,\n        cropY: cropY\n      };\n    }\n  });\n\n  /**\n   * Default CSS class name for canvas\n   * @static\n   * @type String\n   * @default\n   */\n  fabric.Image.CSS_CANVAS = 'canvas-img';\n\n  /**\n   * Alias for getSrc\n   * @static\n   */\n  fabric.Image.prototype.getSvgSrc = fabric.Image.prototype.getSrc;\n\n  /**\n   * Creates an instance of fabric.Image from its object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} callback Callback to invoke when an image instance is created\n   */\n  fabric.Image.fromObject = function(_object, callback) {\n    var object = fabric.util.object.clone(_object);\n    fabric.util.loadImage(object.src, function(img, error) {\n      if (error) {\n        callback && callback(null, error);\n        return;\n      }\n      fabric.Image.prototype._initFilters.call(object, object.filters, function(filters) {\n        object.filters = filters || [];\n        fabric.Image.prototype._initFilters.call(object, [object.resizeFilter], function(resizeFilters) {\n          object.resizeFilter = resizeFilters[0];\n          fabric.util.enlivenObjects([object.clipPath], function(enlivedProps) {\n            object.clipPath = enlivedProps[0];\n            var image = new fabric.Image(img, object);\n            callback(image);\n          });\n        });\n      });\n    }, null, object.crossOrigin);\n  };\n\n  /**\n   * Creates an instance of fabric.Image from an URL string\n   * @static\n   * @param {String} url URL to create an image from\n   * @param {Function} [callback] Callback to invoke when image is created (newly created image is passed as a first argument)\n   * @param {Object} [imgOptions] Options object\n   */\n  fabric.Image.fromURL = function(url, callback, imgOptions) {\n    fabric.util.loadImage(url, function(img) {\n      callback && callback(new fabric.Image(img, imgOptions));\n    }, null, imgOptions && imgOptions.crossOrigin);\n  };\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Image.fromElement})\n   * @static\n   * @see {@link http://www.w3.org/TR/SVG/struct.html#ImageElement}\n   */\n  fabric.Image.ATTRIBUTE_NAMES =\n    fabric.SHARED_ATTRIBUTES.concat('x y width height preserveAspectRatio xlink:href crossOrigin'.split(' '));\n\n  /**\n   * Returns {@link fabric.Image} instance from an SVG element\n   * @static\n   * @param {SVGElement} element Element to parse\n   * @param {Object} [options] Options object\n   * @param {Function} callback Callback to execute when fabric.Image object is created\n   * @return {fabric.Image} Instance of fabric.Image\n   */\n  fabric.Image.fromElement = function(element, callback, options) {\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Image.ATTRIBUTE_NAMES);\n    fabric.Image.fromURL(parsedAttributes['xlink:href'], callback,\n      extend((options ? fabric.util.object.clone(options) : { }), parsedAttributes));\n  };\n  /* _FROM_SVG_END_ */\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\nfabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n  /**\n   * @private\n   * @return {Number} angle value\n   */\n  _getAngleValueForStraighten: function() {\n    var angle = this.angle % 360;\n    if (angle > 0) {\n      return Math.round((angle - 1) / 90) * 90;\n    }\n    return Math.round(angle / 90) * 90;\n  },\n\n  /**\n   * Straightens an object (rotating it from current angle to one of 0, 90, 180, 270, etc. depending on which is closer)\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  straighten: function() {\n    this.rotate(this._getAngleValueForStraighten());\n    return this;\n  },\n\n  /**\n   * Same as {@link fabric.Object.prototype.straighten} but with animation\n   * @param {Object} callbacks Object with callback functions\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  fxStraighten: function(callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: this.get('angle'),\n      endValue: this._getAngleValueForStraighten(),\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        _this.rotate(value);\n        onChange();\n      },\n      onComplete: function() {\n        _this.setCoords();\n        onComplete();\n      },\n    });\n\n    return this;\n  }\n});\n\nfabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n  /**\n   * Straightens object, then rerenders canvas\n   * @param {fabric.Object} object Object to straighten\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  straightenObject: function (object) {\n    object.straighten();\n    this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Same as {@link fabric.Canvas.prototype.straightenObject}, but animated\n   * @param {fabric.Object} object Object to straighten\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxStraightenObject: function (object) {\n    object.fxStraighten({\n      onChange: this.requestRenderAllBound\n    });\n    return this;\n  }\n});\n\n\n(function() {\n\n  'use strict';\n\n  /**\n   * Tests if webgl supports certain precision\n   * @param {WebGL} Canvas WebGL context to test on\n   * @param {String} Precision to test can be any of following: 'lowp', 'mediump', 'highp'\n   * @returns {Boolean} Whether the user's browser WebGL supports given precision.\n   */\n  function testPrecision(gl, precision){\n    var fragmentSource = 'precision ' + precision + ' float;\\nvoid main(){}';\n    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);\n    gl.shaderSource(fragmentShader, fragmentSource);\n    gl.compileShader(fragmentShader);\n    if (!gl.getShaderParameter(fragmentShader, gl.COMPILE_STATUS)) {\n      return false;\n    }\n    return true;\n  }\n\n  /**\n   * Indicate whether this filtering backend is supported by the user's browser.\n   * @param {Number} tileSize check if the tileSize is supported\n   * @returns {Boolean} Whether the user's browser supports WebGL.\n   */\n  fabric.isWebglSupported = function(tileSize) {\n    if (fabric.isLikelyNode) {\n      return false;\n    }\n    tileSize = tileSize || fabric.WebglFilterBackend.prototype.tileSize;\n    var canvas = document.createElement('canvas');\n    var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');\n    var isSupported = false;\n    // eslint-disable-next-line\n    if (gl) {\n      fabric.maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);\n      isSupported = fabric.maxTextureSize >= tileSize;\n      var precisions = ['highp', 'mediump', 'lowp'];\n      for (var i = 0; i < 3; i++){\n        if (testPrecision(gl, precisions[i])){\n          fabric.webGlPrecision = precisions[i];\n          break;\n        };\n      }\n    }\n    this.isSupported = isSupported;\n    return isSupported;\n  };\n\n  fabric.WebglFilterBackend = WebglFilterBackend;\n\n  /**\n   * WebGL filter backend.\n   */\n  function WebglFilterBackend(options) {\n    if (options && options.tileSize) {\n      this.tileSize = options.tileSize;\n    }\n    this.setupGLContext(this.tileSize, this.tileSize);\n    this.captureGPUInfo();\n  };\n\n  WebglFilterBackend.prototype = /** @lends fabric.WebglFilterBackend.prototype */ {\n\n    tileSize: 2048,\n\n    /**\n     * Experimental. This object is a sort of repository of help layers used to avoid\n     * of recreating them during frequent filtering. If you are previewing a filter with\n     * a slider you problably do not want to create help layers every filter step.\n     * in this object there will be appended some canvases, created once, resized sometimes\n     * cleared never. Clearing is left to the developer.\n     **/\n    resources: {\n\n    },\n\n    /**\n     * Setup a WebGL context suitable for filtering, and bind any needed event handlers.\n     */\n    setupGLContext: function(width, height) {\n      this.dispose();\n      this.createWebGLCanvas(width, height);\n      // eslint-disable-next-line\n      this.aPosition = new Float32Array([0, 0, 0, 1, 1, 0, 1, 1]);\n      this.chooseFastestCopyGLTo2DMethod(width, height);\n    },\n\n    /**\n     * Pick a method to copy data from GL context to 2d canvas.  In some browsers using\n     * putImageData is faster than drawImage for that specific operation.\n     */\n    chooseFastestCopyGLTo2DMethod: function(width, height) {\n      var canMeasurePerf = typeof window.performance !== 'undefined', canUseImageData;\n      try {\n        new ImageData(1, 1);\n        canUseImageData = true;\n      }\n      catch (e) {\n        canUseImageData = false;\n      }\n      // eslint-disable-next-line no-undef\n      var canUseArrayBuffer = typeof ArrayBuffer !== 'undefined';\n      // eslint-disable-next-line no-undef\n      var canUseUint8Clamped = typeof Uint8ClampedArray !== 'undefined';\n\n      if (!(canMeasurePerf && canUseImageData && canUseArrayBuffer && canUseUint8Clamped)) {\n        return;\n      }\n\n      var targetCanvas = fabric.util.createCanvasElement();\n      // eslint-disable-next-line no-undef\n      var imageBuffer = new ArrayBuffer(width * height * 4);\n      if (fabric.forceGLPutImageData) {\n        this.imageBuffer = imageBuffer;\n        this.copyGLTo2D = copyGLTo2DPutImageData;\n        return;\n      }\n      var testContext = {\n        imageBuffer: imageBuffer,\n        destinationWidth: width,\n        destinationHeight: height,\n        targetCanvas: targetCanvas\n      };\n      var startTime, drawImageTime, putImageDataTime;\n      targetCanvas.width = width;\n      targetCanvas.height = height;\n\n      startTime = window.performance.now();\n      copyGLTo2DDrawImage.call(testContext, this.gl, testContext);\n      drawImageTime = window.performance.now() - startTime;\n\n      startTime = window.performance.now();\n      copyGLTo2DPutImageData.call(testContext, this.gl, testContext);\n      putImageDataTime = window.performance.now() - startTime;\n\n      if (drawImageTime > putImageDataTime) {\n        this.imageBuffer = imageBuffer;\n        this.copyGLTo2D = copyGLTo2DPutImageData;\n      }\n      else {\n        this.copyGLTo2D = copyGLTo2DDrawImage;\n      }\n    },\n\n    /**\n     * Create a canvas element and associated WebGL context and attaches them as\n     * class properties to the GLFilterBackend class.\n     */\n    createWebGLCanvas: function(width, height) {\n      var canvas = fabric.util.createCanvasElement();\n      canvas.width = width;\n      canvas.height = height;\n      var glOptions = {\n            alpha: true,\n            premultipliedAlpha: false,\n            depth: false,\n            stencil: false,\n            antialias: false\n          },\n          gl = canvas.getContext('webgl', glOptions);\n      if (!gl) {\n        gl = canvas.getContext('experimental-webgl', glOptions);\n      }\n      if (!gl) {\n        return;\n      }\n      gl.clearColor(0, 0, 0, 0);\n      // this canvas can fire webglcontextlost and webglcontextrestored\n      this.canvas = canvas;\n      this.gl = gl;\n    },\n\n    /**\n     * Attempts to apply the requested filters to the source provided, drawing the filtered output\n     * to the provided target canvas.\n     *\n     * @param {Array} filters The filters to apply.\n     * @param {HTMLImageElement|HTMLCanvasElement} source The source to be filtered.\n     * @param {Number} width The width of the source input.\n     * @param {Number} height The height of the source input.\n     * @param {HTMLCanvasElement} targetCanvas The destination for filtered output to be drawn.\n     * @param {String|undefined} cacheKey A key used to cache resources related to the source. If\n     * omitted, caching will be skipped.\n     */\n    applyFilters: function(filters, source, width, height, targetCanvas, cacheKey) {\n      var gl = this.gl;\n      var cachedTexture;\n      if (cacheKey) {\n        cachedTexture = this.getCachedTexture(cacheKey, source);\n      }\n      var pipelineState = {\n        originalWidth: source.width || source.originalWidth,\n        originalHeight: source.height || source.originalHeight,\n        sourceWidth: width,\n        sourceHeight: height,\n        destinationWidth: width,\n        destinationHeight: height,\n        context: gl,\n        sourceTexture: this.createTexture(gl, width, height, !cachedTexture && source),\n        targetTexture: this.createTexture(gl, width, height),\n        originalTexture: cachedTexture ||\n          this.createTexture(gl, width, height, !cachedTexture && source),\n        passes: filters.length,\n        webgl: true,\n        aPosition: this.aPosition,\n        programCache: this.programCache,\n        pass: 0,\n        filterBackend: this,\n        targetCanvas: targetCanvas\n      };\n      var tempFbo = gl.createFramebuffer();\n      gl.bindFramebuffer(gl.FRAMEBUFFER, tempFbo);\n      filters.forEach(function(filter) { filter && filter.applyTo(pipelineState); });\n      resizeCanvasIfNeeded(pipelineState);\n      this.copyGLTo2D(gl, pipelineState);\n      gl.bindTexture(gl.TEXTURE_2D, null);\n      gl.deleteTexture(pipelineState.sourceTexture);\n      gl.deleteTexture(pipelineState.targetTexture);\n      gl.deleteFramebuffer(tempFbo);\n      targetCanvas.getContext('2d').setTransform(1, 0, 0, 1, 0, 0);\n      return pipelineState;\n    },\n\n    /**\n     * Detach event listeners, remove references, and clean up caches.\n     */\n    dispose: function() {\n      if (this.canvas) {\n        this.canvas = null;\n        this.gl = null;\n      }\n      this.clearWebGLCaches();\n    },\n\n    /**\n     * Wipe out WebGL-related caches.\n     */\n    clearWebGLCaches: function() {\n      this.programCache = {};\n      this.textureCache = {};\n    },\n\n    /**\n     * Create a WebGL texture object.\n     *\n     * Accepts specific dimensions to initialize the textuer to or a source image.\n     *\n     * @param {WebGLRenderingContext} gl The GL context to use for creating the texture.\n     * @param {Number} width The width to initialize the texture at.\n     * @param {Number} height The height to initialize the texture.\n     * @param {HTMLImageElement|HTMLCanvasElement} textureImageSource A source for the texture data.\n     * @returns {WebGLTexture}\n     */\n    createTexture: function(gl, width, height, textureImageSource) {\n      var texture = gl.createTexture();\n      gl.bindTexture(gl.TEXTURE_2D, texture);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);\n      if (textureImageSource) {\n        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, textureImageSource);\n      }\n      else {\n        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);\n      }\n      return texture;\n    },\n\n    /**\n     * Can be optionally used to get a texture from the cache array\n     *\n     * If an existing texture is not found, a new texture is created and cached.\n     *\n     * @param {String} uniqueId A cache key to use to find an existing texture.\n     * @param {HTMLImageElement|HTMLCanvasElement} textureImageSource A source to use to create the\n     * texture cache entry if one does not already exist.\n     */\n    getCachedTexture: function(uniqueId, textureImageSource) {\n      if (this.textureCache[uniqueId]) {\n        return this.textureCache[uniqueId];\n      }\n      else {\n        var texture = this.createTexture(\n          this.gl, textureImageSource.width, textureImageSource.height, textureImageSource);\n        this.textureCache[uniqueId] = texture;\n        return texture;\n      }\n    },\n\n    /**\n     * Clear out cached resources related to a source image that has been\n     * filtered previously.\n     *\n     * @param {String} cacheKey The cache key provided when the source image was filtered.\n     */\n    evictCachesForKey: function(cacheKey) {\n      if (this.textureCache[cacheKey]) {\n        this.gl.deleteTexture(this.textureCache[cacheKey]);\n        delete this.textureCache[cacheKey];\n      }\n    },\n\n    copyGLTo2D: copyGLTo2DDrawImage,\n\n    /**\n     * Attempt to extract GPU information strings from a WebGL context.\n     *\n     * Useful information when debugging or blacklisting specific GPUs.\n     *\n     * @returns {Object} A GPU info object with renderer and vendor strings.\n     */\n    captureGPUInfo: function() {\n      if (this.gpuInfo) {\n        return this.gpuInfo;\n      }\n      var gl = this.gl, gpuInfo = { renderer: '', vendor: '' };\n      if (!gl) {\n        return gpuInfo;\n      }\n      var ext = gl.getExtension('WEBGL_debug_renderer_info');\n      if (ext) {\n        var renderer = gl.getParameter(ext.UNMASKED_RENDERER_WEBGL);\n        var vendor = gl.getParameter(ext.UNMASKED_VENDOR_WEBGL);\n        if (renderer) {\n          gpuInfo.renderer = renderer.toLowerCase();\n        }\n        if (vendor) {\n          gpuInfo.vendor = vendor.toLowerCase();\n        }\n      }\n      this.gpuInfo = gpuInfo;\n      return gpuInfo;\n    },\n  };\n})();\n\nfunction resizeCanvasIfNeeded(pipelineState) {\n  var targetCanvas = pipelineState.targetCanvas,\n      width = targetCanvas.width, height = targetCanvas.height,\n      dWidth = pipelineState.destinationWidth,\n      dHeight = pipelineState.destinationHeight;\n\n  if (width !== dWidth || height !== dHeight) {\n    targetCanvas.width = dWidth;\n    targetCanvas.height = dHeight;\n  }\n}\n\n/**\n * Copy an input WebGL canvas on to an output 2D canvas.\n *\n * The WebGL canvas is assumed to be upside down, with the top-left pixel of the\n * desired output image appearing in the bottom-left corner of the WebGL canvas.\n *\n * @param {WebGLRenderingContext} sourceContext The WebGL context to copy from.\n * @param {HTMLCanvasElement} targetCanvas The 2D target canvas to copy on to.\n * @param {Object} pipelineState The 2D target canvas to copy on to.\n */\nfunction copyGLTo2DDrawImage(gl, pipelineState) {\n  var glCanvas = gl.canvas, targetCanvas = pipelineState.targetCanvas,\n      ctx = targetCanvas.getContext('2d');\n  ctx.translate(0, targetCanvas.height); // move it down again\n  ctx.scale(1, -1); // vertical flip\n  // where is my image on the big glcanvas?\n  var sourceY = glCanvas.height - targetCanvas.height;\n  ctx.drawImage(glCanvas, 0, sourceY, targetCanvas.width, targetCanvas.height, 0, 0,\n    targetCanvas.width, targetCanvas.height);\n}\n\n/**\n * Copy an input WebGL canvas on to an output 2D canvas using 2d canvas' putImageData\n * API. Measurably faster than using ctx.drawImage in Firefox (version 54 on OSX Sierra).\n *\n * @param {WebGLRenderingContext} sourceContext The WebGL context to copy from.\n * @param {HTMLCanvasElement} targetCanvas The 2D target canvas to copy on to.\n * @param {Object} pipelineState The 2D target canvas to copy on to.\n */\nfunction copyGLTo2DPutImageData(gl, pipelineState) {\n  var targetCanvas = pipelineState.targetCanvas, ctx = targetCanvas.getContext('2d'),\n      dWidth = pipelineState.destinationWidth,\n      dHeight = pipelineState.destinationHeight,\n      numBytes = dWidth * dHeight * 4;\n\n  // eslint-disable-next-line no-undef\n  var u8 = new Uint8Array(this.imageBuffer, 0, numBytes);\n  // eslint-disable-next-line no-undef\n  var u8Clamped = new Uint8ClampedArray(this.imageBuffer, 0, numBytes);\n\n  gl.readPixels(0, 0, dWidth, dHeight, gl.RGBA, gl.UNSIGNED_BYTE, u8);\n  var imgData = new ImageData(u8Clamped, dWidth, dHeight);\n  ctx.putImageData(imgData, 0, 0);\n}\n\n\n(function() {\n\n  'use strict';\n\n  var noop = function() {};\n\n  fabric.Canvas2dFilterBackend = Canvas2dFilterBackend;\n\n  /**\n   * Canvas 2D filter backend.\n   */\n  function Canvas2dFilterBackend() {};\n\n  Canvas2dFilterBackend.prototype = /** @lends fabric.Canvas2dFilterBackend.prototype */ {\n    evictCachesForKey: noop,\n    dispose: noop,\n    clearWebGLCaches: noop,\n\n    /**\n     * Experimental. This object is a sort of repository of help layers used to avoid\n     * of recreating them during frequent filtering. If you are previewing a filter with\n     * a slider you probably do not want to create help layers every filter step.\n     * in this object there will be appended some canvases, created once, resized sometimes\n     * cleared never. Clearing is left to the developer.\n     **/\n    resources: {\n\n    },\n\n    /**\n     * Apply a set of filters against a source image and draw the filtered output\n     * to the provided destination canvas.\n     *\n     * @param {EnhancedFilter} filters The filter to apply.\n     * @param {HTMLImageElement|HTMLCanvasElement} sourceElement The source to be filtered.\n     * @param {Number} sourceWidth The width of the source input.\n     * @param {Number} sourceHeight The height of the source input.\n     * @param {HTMLCanvasElement} targetCanvas The destination for filtered output to be drawn.\n     */\n    applyFilters: function(filters, sourceElement, sourceWidth, sourceHeight, targetCanvas) {\n      var ctx = targetCanvas.getContext('2d');\n      ctx.drawImage(sourceElement, 0, 0, sourceWidth, sourceHeight);\n      var imageData = ctx.getImageData(0, 0, sourceWidth, sourceHeight);\n      var originalImageData = ctx.getImageData(0, 0, sourceWidth, sourceHeight);\n      var pipelineState = {\n        sourceWidth: sourceWidth,\n        sourceHeight: sourceHeight,\n        imageData: imageData,\n        originalEl: sourceElement,\n        originalImageData: originalImageData,\n        canvasEl: targetCanvas,\n        ctx: ctx,\n        filterBackend: this,\n      };\n      filters.forEach(function(filter) { filter.applyTo(pipelineState); });\n      if (pipelineState.imageData.width !== sourceWidth || pipelineState.imageData.height !== sourceHeight) {\n        targetCanvas.width = pipelineState.imageData.width;\n        targetCanvas.height = pipelineState.imageData.height;\n      }\n      ctx.putImageData(pipelineState.imageData, 0, 0);\n      return pipelineState;\n    },\n\n  };\n})();\n\n\n/**\n * @namespace fabric.Image.filters\n * @memberOf fabric.Image\n * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#image_filters}\n * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n */\nfabric.Image = fabric.Image || { };\nfabric.Image.filters = fabric.Image.filters || { };\n\n/**\n * Root filter class from which all filter classes inherit from\n * @class fabric.Image.filters.BaseFilter\n * @memberOf fabric.Image.filters\n */\nfabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Image.filters.BaseFilter.prototype */ {\n\n  /**\n   * Filter type\n   * @param {String} type\n   * @default\n   */\n  type: 'BaseFilter',\n\n  /**\n   * Array of attributes to send with buffers. do not modify\n   * @private\n   */\n\n  vertexSource: 'attribute vec2 aPosition;\\n' +\n    'varying vec2 vTexCoord;\\n' +\n    'void main() {\\n' +\n      'vTexCoord = aPosition;\\n' +\n      'gl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\\n' +\n    '}',\n\n  fragmentSource: 'precision highp float;\\n' +\n    'varying vec2 vTexCoord;\\n' +\n    'uniform sampler2D uTexture;\\n' +\n    'void main() {\\n' +\n      'gl_FragColor = texture2D(uTexture, vTexCoord);\\n' +\n    '}',\n\n  /**\n   * Constructor\n   * @param {Object} [options] Options object\n   */\n  initialize: function(options) {\n    if (options) {\n      this.setOptions(options);\n    }\n  },\n\n  /**\n   * Sets filter's properties from options\n   * @param {Object} [options] Options object\n   */\n  setOptions: function(options) {\n    for (var prop in options) {\n      this[prop] = options[prop];\n    }\n  },\n\n  /**\n   * Compile this filter's shader program.\n   *\n   * @param {WebGLRenderingContext} gl The GL canvas context to use for shader compilation.\n   * @param {String} fragmentSource fragmentShader source for compilation\n   * @param {String} vertexSource vertexShader source for compilation\n   */\n  createProgram: function(gl, fragmentSource, vertexSource) {\n    fragmentSource = fragmentSource || this.fragmentSource;\n    vertexSource = vertexSource || this.vertexSource;\n    if (fabric.webGlPrecision !== 'highp'){\n      fragmentSource = fragmentSource.replace(\n        /precision highp float/g,\n        'precision ' + fabric.webGlPrecision + ' float'\n      );\n    }\n    var vertexShader = gl.createShader(gl.VERTEX_SHADER);\n    gl.shaderSource(vertexShader, vertexSource);\n    gl.compileShader(vertexShader);\n    if (!gl.getShaderParameter(vertexShader, gl.COMPILE_STATUS)) {\n      throw new Error(\n        // eslint-disable-next-line prefer-template\n        'Vertex shader compile error for ' + this.type + ': ' +\n        gl.getShaderInfoLog(vertexShader)\n      );\n    }\n\n    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);\n    gl.shaderSource(fragmentShader, fragmentSource);\n    gl.compileShader(fragmentShader);\n    if (!gl.getShaderParameter(fragmentShader, gl.COMPILE_STATUS)) {\n      throw new Error(\n        // eslint-disable-next-line prefer-template\n        'Fragment shader compile error for ' + this.type + ': ' +\n        gl.getShaderInfoLog(fragmentShader)\n      );\n    }\n\n    var program = gl.createProgram();\n    gl.attachShader(program, vertexShader);\n    gl.attachShader(program, fragmentShader);\n    gl.linkProgram(program);\n    if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {\n      throw new Error(\n        // eslint-disable-next-line prefer-template\n        'Shader link error for \"${this.type}\" ' +\n        gl.getProgramInfoLog(program)\n      );\n    }\n\n    var attributeLocations = this.getAttributeLocations(gl, program);\n    var uniformLocations = this.getUniformLocations(gl, program) || { };\n    uniformLocations.uStepW = gl.getUniformLocation(program, 'uStepW');\n    uniformLocations.uStepH = gl.getUniformLocation(program, 'uStepH');\n    return {\n      program: program,\n      attributeLocations: attributeLocations,\n      uniformLocations: uniformLocations\n    };\n  },\n\n  /**\n   * Return a map of attribute names to WebGLAttributeLocation objects.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {WebGLShaderProgram} program The shader program from which to take attribute locations.\n   * @returns {Object} A map of attribute names to attribute locations.\n   */\n  getAttributeLocations: function(gl, program) {\n    return {\n      aPosition: gl.getAttribLocation(program, 'aPosition'),\n    };\n  },\n\n  /**\n   * Return a map of uniform names to WebGLUniformLocation objects.\n   *\n   * Intended to be overridden by subclasses.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {WebGLShaderProgram} program The shader program from which to take uniform locations.\n   * @returns {Object} A map of uniform names to uniform locations.\n   */\n  getUniformLocations: function (/* gl, program */) {\n    // in case i do not need any special uniform i need to return an empty object\n    return { };\n  },\n\n  /**\n   * Send attribute data from this filter to its shader program on the GPU.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {Object} attributeLocations A map of shader attribute names to their locations.\n   */\n  sendAttributeData: function(gl, attributeLocations, aPositionData) {\n    var attributeLocation = attributeLocations.aPosition;\n    var buffer = gl.createBuffer();\n    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);\n    gl.enableVertexAttribArray(attributeLocation);\n    gl.vertexAttribPointer(attributeLocation, 2, gl.FLOAT, false, 0, 0);\n    gl.bufferData(gl.ARRAY_BUFFER, aPositionData, gl.STATIC_DRAW);\n  },\n\n  _setupFrameBuffer: function(options) {\n    var gl = options.context, width, height;\n    if (options.passes > 1) {\n      width = options.destinationWidth;\n      height = options.destinationHeight;\n      if (options.sourceWidth !== width || options.sourceHeight !== height) {\n        gl.deleteTexture(options.targetTexture);\n        options.targetTexture = options.filterBackend.createTexture(gl, width, height);\n      }\n      gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D,\n        options.targetTexture, 0);\n    }\n    else {\n      // draw last filter on canvas and not to framebuffer.\n      gl.bindFramebuffer(gl.FRAMEBUFFER, null);\n      gl.finish();\n    }\n  },\n\n  _swapTextures: function(options) {\n    options.passes--;\n    options.pass++;\n    var temp = options.targetTexture;\n    options.targetTexture = options.sourceTexture;\n    options.sourceTexture = temp;\n  },\n\n  /**\n   * Generic isNeutral implementation for one parameter based filters.\n   * Used only in image applyFilters to discard filters that will not have an effect\n   * on the image\n   * Other filters may need their own verison ( ColorMatrix, HueRotation, gamma, ComposedFilter )\n   * @param {Object} options\n   **/\n  isNeutralState: function(/* options */) {\n    var main = this.mainParameter,\n        _class = fabric.Image.filters[this.type].prototype;\n    if (main) {\n      if (Array.isArray(_class[main])) {\n        for (var i = _class[main].length; i--;) {\n          if (this[main][i] !== _class[main][i]) {\n            return false;\n          }\n        }\n        return true;\n      }\n      else {\n        return _class[main] === this[main];\n      }\n    }\n    else {\n      return false;\n    }\n  },\n\n  /**\n   * Apply this filter to the input image data provided.\n   *\n   * Determines whether to use WebGL or Canvas2D based on the options.webgl flag.\n   *\n   * @param {Object} options\n   * @param {Number} options.passes The number of filters remaining to be executed\n   * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n   * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n   * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n   * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n   * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n   */\n  applyTo: function(options) {\n    if (options.webgl) {\n      this._setupFrameBuffer(options);\n      this.applyToWebGL(options);\n      this._swapTextures(options);\n    }\n    else {\n      this.applyTo2d(options);\n    }\n  },\n\n  /**\n   * Retrieves the cached shader.\n   * @param {Object} options\n   * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n   * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n   */\n  retrieveShader: function(options) {\n    if (!options.programCache.hasOwnProperty(this.type)) {\n      options.programCache[this.type] = this.createProgram(options.context);\n    }\n    return options.programCache[this.type];\n  },\n\n  /**\n   * Apply this filter using webgl.\n   *\n   * @param {Object} options\n   * @param {Number} options.passes The number of filters remaining to be executed\n   * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n   * @param {WebGLTexture} options.originalTexture The texture of the original input image.\n   * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n   * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n   * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n   * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n   */\n  applyToWebGL: function(options) {\n    var gl = options.context;\n    var shader = this.retrieveShader(options);\n    if (options.pass === 0 && options.originalTexture) {\n      gl.bindTexture(gl.TEXTURE_2D, options.originalTexture);\n    }\n    else {\n      gl.bindTexture(gl.TEXTURE_2D, options.sourceTexture);\n    }\n    gl.useProgram(shader.program);\n    this.sendAttributeData(gl, shader.attributeLocations, options.aPosition);\n\n    gl.uniform1f(shader.uniformLocations.uStepW, 1 / options.sourceWidth);\n    gl.uniform1f(shader.uniformLocations.uStepH, 1 / options.sourceHeight);\n\n    this.sendUniformData(gl, shader.uniformLocations);\n    gl.viewport(0, 0, options.destinationWidth, options.destinationHeight);\n    gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);\n  },\n\n  bindAdditionalTexture: function(gl, texture, textureUnit) {\n    gl.activeTexture(textureUnit);\n    gl.bindTexture(gl.TEXTURE_2D, texture);\n    // reset active texture to 0 as usual\n    gl.activeTexture(gl.TEXTURE0);\n  },\n\n  unbindAdditionalTexture: function(gl, textureUnit) {\n    gl.activeTexture(textureUnit);\n    gl.bindTexture(gl.TEXTURE_2D, null);\n    gl.activeTexture(gl.TEXTURE0);\n  },\n\n  getMainParameter: function() {\n    return this[this.mainParameter];\n  },\n\n  setMainParameter: function(value) {\n    this[this.mainParameter] = value;\n  },\n\n  /**\n   * Send uniform data from this filter to its shader program on the GPU.\n   *\n   * Intended to be overridden by subclasses.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {Object} uniformLocations A map of shader uniform names to their locations.\n   */\n  sendUniformData: function(/* gl, uniformLocations */) {\n    // Intentionally left blank.  Override me in subclasses.\n  },\n\n  /**\n   * If needed by a 2d filter, this functions can create an helper canvas to be used\n   * remember that options.targetCanvas is available for use till end of chain.\n   */\n  createHelpLayer: function(options) {\n    if (!options.helpLayer) {\n      var helpLayer = document.createElement('canvas');\n      helpLayer.width = options.sourceWidth;\n      helpLayer.height = options.sourceHeight;\n      options.helpLayer = helpLayer;\n    }\n  },\n\n  /**\n   * Returns object representation of an instance\n   * @return {Object} Object representation of an instance\n   */\n  toObject: function() {\n    var object = { type: this.type }, mainP = this.mainParameter;\n    if (mainP) {\n      object[mainP] = this[mainP];\n    }\n    return object;\n  },\n\n  /**\n   * Returns a JSON representation of an instance\n   * @return {Object} JSON\n   */\n  toJSON: function() {\n    // delegate, not alias\n    return this.toObject();\n  }\n});\n\nfabric.Image.filters.BaseFilter.fromObject = function(object, callback) {\n  var filter = new fabric.Image.filters[object.type](object);\n  callback && callback(filter);\n  return filter;\n};\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Color Matrix filter class\n   * @class fabric.Image.filters.ColorMatrix\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.ColorMatrix#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @see {@Link http://www.webwasp.co.uk/tutorials/219/Color_Matrix_Filter.php}\n   * @see {@Link http://phoboslab.org/log/2013/11/fast-image-filters-with-webgl}\n   * @example <caption>Kodachrome filter</caption>\n   * var filter = new fabric.Image.filters.ColorMatrix({\n   *  matrix: [\n       1.1285582396593525, -0.3967382283601348, -0.03992559172921793, 0, 63.72958762196502,\n       -0.16404339962244616, 1.0835251566291304, -0.05498805115633132, 0, 24.732407896706203,\n       -0.16786010706155763, -0.5603416277695248, 1.6014850761964943, 0, 35.62982807460946,\n       0, 0, 0, 1, 0\n      ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.ColorMatrix = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.ColorMatrix.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'ColorMatrix',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'uniform mat4 uColorMatrix;\\n' +\n      'uniform vec4 uConstants;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'color *= uColorMatrix;\\n' +\n        'color += uConstants;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Colormatrix for pixels.\n     * array of 20 floats. Numbers in positions 4, 9, 14, 19 loose meaning\n     * outside the -1, 1 range.\n     * 0.0039215686 is the part of 1 that get translated to 1 in 2d\n     * @param {Array} matrix array of 20 numbers.\n     * @default\n     */\n    matrix: [\n      1, 0, 0, 0, 0,\n      0, 1, 0, 0, 0,\n      0, 0, 1, 0, 0,\n      0, 0, 0, 1, 0\n    ],\n\n    mainParameter: 'matrix',\n\n    /**\n     * Lock the colormatrix on the color part, skipping alpha, manly for non webgl scenario\n     * to save some calculation\n     */\n    colorsOnly: true,\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      // create a new array instead mutating the prototype with push\n      this.matrix = this.matrix.slice(0);\n    },\n\n    /**\n     * Apply the ColorMatrix operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data,\n          iLen = data.length,\n          m = this.matrix,\n          r, g, b, a, i, colorsOnly = this.colorsOnly;\n\n      for (i = 0; i < iLen; i += 4) {\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n        if (colorsOnly) {\n          data[i] = r * m[0] + g * m[1] + b * m[2] + m[4] * 255;\n          data[i + 1] = r * m[5] + g * m[6] + b * m[7] + m[9] * 255;\n          data[i + 2] = r * m[10] + g * m[11] + b * m[12] + m[14] * 255;\n        }\n        else {\n          a = data[i + 3];\n          data[i] = r * m[0] + g * m[1] + b * m[2] + a * m[3] + m[4] * 255;\n          data[i + 1] = r * m[5] + g * m[6] + b * m[7] + a * m[8] + m[9] * 255;\n          data[i + 2] = r * m[10] + g * m[11] + b * m[12] + a * m[13] + m[14] * 255;\n          data[i + 3] = r * m[15] + g * m[16] + b * m[17] + a * m[18] + m[19] * 255;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uColorMatrix: gl.getUniformLocation(program, 'uColorMatrix'),\n        uConstants: gl.getUniformLocation(program, 'uConstants'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var m = this.matrix,\n          matrix = [\n            m[0], m[1], m[2], m[3],\n            m[5], m[6], m[7], m[8],\n            m[10], m[11], m[12], m[13],\n            m[15], m[16], m[17], m[18]\n          ],\n          constants = [m[4], m[9], m[14], m[19]];\n      gl.uniformMatrix4fv(uniformLocations.uColorMatrix, false, matrix);\n      gl.uniform4fv(uniformLocations.uConstants, constants);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] function to invoke after filter creation\n   * @return {fabric.Image.filters.ColorMatrix} Instance of fabric.Image.filters.ColorMatrix\n   */\n  fabric.Image.filters.ColorMatrix.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Brightness filter class\n   * @class fabric.Image.filters.Brightness\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Brightness#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Brightness({\n   *   brightness: 0.05\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Brightness = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Brightness.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Brightness',\n\n    /**\n     * Fragment source for the brightness program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uBrightness;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'color.rgb += uBrightness;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Brightness value, from -1 to 1.\n     * translated to -255 to 255 for 2d\n     * 0.0039215686 is the part of 1 that get translated to 1 in 2d\n     * @param {Number} brightness\n     * @default\n     */\n    brightness: 0,\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'brightness',\n\n    /**\n    * Apply the Brightness operation to a Uint8ClampedArray representing the pixels of an image.\n    *\n    * @param {Object} options\n    * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n    */\n    applyTo2d: function(options) {\n      if (this.brightness === 0) {\n        return;\n      }\n      var imageData = options.imageData,\n          data = imageData.data, i, len = data.length,\n          brightness = Math.round(this.brightness * 255);\n      for (i = 0; i < len; i += 4) {\n        data[i] = data[i] + brightness;\n        data[i + 1] = data[i + 1] + brightness;\n        data[i + 2] = data[i + 2] + brightness;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uBrightness: gl.getUniformLocation(program, 'uBrightness'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uBrightness, this.brightness);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Brightness} Instance of fabric.Image.filters.Brightness\n   */\n  fabric.Image.filters.Brightness.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Adapted from <a href=\"http://www.html5rocks.com/en/tutorials/canvas/imagefilters/\">html5rocks article</a>\n   * @class fabric.Image.filters.Convolute\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Convolute#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example <caption>Sharpen filter</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   matrix: [ 0, -1,  0,\n   *            -1,  5, -1,\n   *             0, -1,  0 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   * @example <caption>Blur filter</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   matrix: [ 1/9, 1/9, 1/9,\n   *             1/9, 1/9, 1/9,\n   *             1/9, 1/9, 1/9 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   * @example <caption>Emboss filter</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   matrix: [ 1,   1,  1,\n   *             1, 0.7, -1,\n   *            -1,  -1, -1 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   * @example <caption>Emboss filter with opaqueness</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   opaque: true,\n   *   matrix: [ 1,   1,  1,\n   *             1, 0.7, -1,\n   *            -1,  -1, -1 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.Convolute = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Convolute.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Convolute',\n\n    /*\n     * Opaque value (true/false)\n     */\n    opaque: false,\n\n    /*\n     * matrix for the filter, max 9x9\n     */\n    matrix: [0, 0, 0, 0, 1, 0, 0, 0, 0],\n\n    /**\n     * Fragment source for the brightness program\n     */\n    fragmentSource: {\n      Convolute_3_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[9];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 3.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 3.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 1), uStepH * (h - 1));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 3.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_3_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[9];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 3.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 3.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 1.0), uStepH * (h - 1.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 3.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n      Convolute_5_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[25];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 5.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 5.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 5.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_5_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[25];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 5.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 5.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 5.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n      Convolute_7_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[49];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 7.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 7.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 7.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_7_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[49];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 7.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 7.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 7.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n      Convolute_9_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[81];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 9.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 9.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 9.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_9_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[81];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 9.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 9.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 9.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n    },\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.Convolute.prototype\n     * @param {Object} [options] Options object\n     * @param {Boolean} [options.opaque=false] Opaque value (true/false)\n     * @param {Array} [options.matrix] Filter matrix\n     */\n\n\n    /**\n    * Retrieves the cached shader.\n    * @param {Object} options\n    * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n    * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n    */\n    retrieveShader: function(options) {\n      var size = Math.sqrt(this.matrix.length);\n      var cacheKey = this.type + '_' + size + '_' + (this.opaque ? 1 : 0);\n      var shaderSource = this.fragmentSource[cacheKey];\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    /**\n     * Apply the Brightness operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data,\n          weights = this.matrix,\n          side = Math.round(Math.sqrt(weights.length)),\n          halfSide = Math.floor(side / 2),\n          sw = imageData.width,\n          sh = imageData.height,\n          output = options.ctx.createImageData(sw, sh),\n          dst = output.data,\n          // go through the destination image pixels\n          alphaFac = this.opaque ? 1 : 0,\n          r, g, b, a, dstOff,\n          scx, scy, srcOff, wt,\n          x, y, cx, cy;\n\n      for (y = 0; y < sh; y++) {\n        for (x = 0; x < sw; x++) {\n          dstOff = (y * sw + x) * 4;\n          // calculate the weighed sum of the source image pixels that\n          // fall under the convolution matrix\n          r = 0; g = 0; b = 0; a = 0;\n\n          for (cy = 0; cy < side; cy++) {\n            for (cx = 0; cx < side; cx++) {\n              scy = y + cy - halfSide;\n              scx = x + cx - halfSide;\n\n              // eslint-disable-next-line max-depth\n              if (scy < 0 || scy >= sh || scx < 0 || scx >= sw) {\n                continue;\n              }\n\n              srcOff = (scy * sw + scx) * 4;\n              wt = weights[cy * side + cx];\n\n              r += data[srcOff] * wt;\n              g += data[srcOff + 1] * wt;\n              b += data[srcOff + 2] * wt;\n              // eslint-disable-next-line max-depth\n              if (!alphaFac) {\n                a += data[srcOff + 3] * wt;\n              }\n            }\n          }\n          dst[dstOff] = r;\n          dst[dstOff + 1] = g;\n          dst[dstOff + 2] = b;\n          if (!alphaFac) {\n            dst[dstOff + 3] = a;\n          }\n          else {\n            dst[dstOff + 3] = data[dstOff + 3];\n          }\n        }\n      }\n      options.imageData = output;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uMatrix: gl.getUniformLocation(program, 'uMatrix'),\n        uOpaque: gl.getUniformLocation(program, 'uOpaque'),\n        uHalfSize: gl.getUniformLocation(program, 'uHalfSize'),\n        uSize: gl.getUniformLocation(program, 'uSize'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1fv(uniformLocations.uMatrix, this.matrix);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return extend(this.callSuper('toObject'), {\n        opaque: this.opaque,\n        matrix: this.matrix\n      });\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Convolute} Instance of fabric.Image.filters.Convolute\n   */\n  fabric.Image.filters.Convolute.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Grayscale image filter class\n   * @class fabric.Image.filters.Grayscale\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Grayscale();\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Grayscale = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Grayscale.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Grayscale',\n\n    fragmentSource: {\n      average: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'float average = (color.r + color.b + color.g) / 3.0;\\n' +\n          'gl_FragColor = vec4(average, average, average, color.a);\\n' +\n        '}',\n      lightness: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform int uMode;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 col = texture2D(uTexture, vTexCoord);\\n' +\n          'float average = (max(max(col.r, col.g),col.b) + min(min(col.r, col.g),col.b)) / 2.0;\\n' +\n          'gl_FragColor = vec4(average, average, average, col.a);\\n' +\n        '}',\n      luminosity: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform int uMode;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 col = texture2D(uTexture, vTexCoord);\\n' +\n          'float average = 0.21 * col.r + 0.72 * col.g + 0.07 * col.b;\\n' +\n          'gl_FragColor = vec4(average, average, average, col.a);\\n' +\n        '}',\n    },\n\n\n    /**\n     * Grayscale mode, between 'average', 'lightness', 'luminosity'\n     * @param {String} type\n     * @default\n     */\n    mode: 'average',\n\n    mainParameter: 'mode',\n\n    /**\n     * Apply the Grayscale operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, i,\n          len = data.length, value,\n          mode = this.mode;\n      for (i = 0; i < len; i += 4) {\n        if (mode === 'average') {\n          value = (data[i] + data[i + 1] + data[i + 2]) / 3;\n        }\n        else if (mode === 'lightness') {\n          value = (Math.min(data[i], data[i + 1], data[i + 2]) +\n            Math.max(data[i], data[i + 1], data[i + 2])) / 2;\n        }\n        else if (mode === 'luminosity') {\n          value = 0.21 * data[i] + 0.72 * data[i + 1] + 0.07 * data[i + 2];\n        }\n        data[i] = value;\n        data[i + 1] = value;\n        data[i + 2] = value;\n      }\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var cacheKey = this.type + '_' + this.mode;\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        var shaderSource = this.fragmentSource[this.mode];\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uMode: gl.getUniformLocation(program, 'uMode'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      // default average mode.\n      var mode = 1;\n      gl.uniform1i(uniformLocations.uMode, mode);\n    },\n\n    /**\n     * Grayscale filter isNeutralState implementation\n     * The filter is never neutral\n     * on the image\n     **/\n    isNeutralState: function() {\n      return false;\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Grayscale} Instance of fabric.Image.filters.Grayscale\n   */\n  fabric.Image.filters.Grayscale.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Invert filter class\n   * @class fabric.Image.filters.Invert\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Invert();\n   * object.filters.push(filter);\n   * object.applyFilters(canvas.renderAll.bind(canvas));\n   */\n  filters.Invert = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Invert.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Invert',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform int uInvert;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'if (uInvert == 1) {\\n' +\n          'gl_FragColor = vec4(1.0 - color.r,1.0 -color.g,1.0 -color.b,color.a);\\n' +\n        '} else {\\n' +\n          'gl_FragColor = color;\\n' +\n        '}\\n' +\n      '}',\n\n    /**\n     * Filter invert. if false, does nothing\n     * @param {Boolean} invert\n     * @default\n     */\n    invert: true,\n\n    mainParameter: 'invert',\n\n    /**\n     * Apply the Invert operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, i,\n          len = data.length;\n      for (i = 0; i < len; i += 4) {\n        data[i] = 255 - data[i];\n        data[i + 1] = 255 - data[i + 1];\n        data[i + 2] = 255 - data[i + 2];\n      }\n    },\n\n    /**\n     * Invert filter isNeutralState implementation\n     * Used only in image applyFilters to discard filters that will not have an effect\n     * on the image\n     * @param {Object} options\n     **/\n    isNeutralState: function() {\n      return !this.invert;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uInvert: gl.getUniformLocation(program, 'uInvert'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1i(uniformLocations.uInvert, this.invert);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Invert} Instance of fabric.Image.filters.Invert\n   */\n  fabric.Image.filters.Invert.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Noise filter class\n   * @class fabric.Image.filters.Noise\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Noise#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Noise({\n   *   noise: 700\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.Noise = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Noise.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Noise',\n\n    /**\n     * Fragment source for the noise program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uStepH;\\n' +\n      'uniform float uNoise;\\n' +\n      'uniform float uSeed;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'float rand(vec2 co, float seed, float vScale) {\\n' +\n        'return fract(sin(dot(co.xy * vScale ,vec2(12.9898 , 78.233))) * 43758.5453 * (seed + 0.01) / 2.0);\\n' +\n      '}\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'color.rgb += (0.5 - rand(vTexCoord, uSeed, 0.1 / uStepH)) * uNoise;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'noise',\n\n    /**\n     * Noise value, from\n     * @param {Number} noise\n     * @default\n     */\n    noise: 0,\n\n    /**\n     * Apply the Brightness operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      if (this.noise === 0) {\n        return;\n      }\n      var imageData = options.imageData,\n          data = imageData.data, i, len = data.length,\n          noise = this.noise, rand;\n\n      for (i = 0, len = data.length; i < len; i += 4) {\n\n        rand = (0.5 - Math.random()) * noise;\n\n        data[i] += rand;\n        data[i + 1] += rand;\n        data[i + 2] += rand;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uNoise: gl.getUniformLocation(program, 'uNoise'),\n        uSeed: gl.getUniformLocation(program, 'uSeed'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uNoise, this.noise / 255);\n      gl.uniform1f(uniformLocations.uSeed, Math.random());\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return extend(this.callSuper('toObject'), {\n        noise: this.noise\n      });\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Noise} Instance of fabric.Image.filters.Noise\n   */\n  fabric.Image.filters.Noise.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Pixelate filter class\n   * @class fabric.Image.filters.Pixelate\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Pixelate#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Pixelate({\n   *   blocksize: 8\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Pixelate = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Pixelate.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Pixelate',\n\n    blocksize: 4,\n\n    mainParameter: 'blocksize',\n\n    /**\n     * Fragment source for the Pixelate program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uBlocksize;\\n' +\n      'uniform float uStepW;\\n' +\n      'uniform float uStepH;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'float blockW = uBlocksize * uStepW;\\n' +\n        'float blockH = uBlocksize * uStepW;\\n' +\n        'int posX = int(vTexCoord.x / blockW);\\n' +\n        'int posY = int(vTexCoord.y / blockH);\\n' +\n        'float fposX = float(posX);\\n' +\n        'float fposY = float(posY);\\n' +\n        'vec2 squareCoords = vec2(fposX * blockW, fposY * blockH);\\n' +\n        'vec4 color = texture2D(uTexture, squareCoords);\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Apply the Pixelate operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data,\n          iLen = imageData.height,\n          jLen = imageData.width,\n          index, i, j, r, g, b, a,\n          _i, _j, _iLen, _jLen;\n\n      for (i = 0; i < iLen; i += this.blocksize) {\n        for (j = 0; j < jLen; j += this.blocksize) {\n\n          index = (i * 4) * jLen + (j * 4);\n\n          r = data[index];\n          g = data[index + 1];\n          b = data[index + 2];\n          a = data[index + 3];\n\n          _iLen = Math.min(i + this.blocksize, iLen);\n          _jLen = Math.min(j + this.blocksize, jLen);\n          for (_i = i; _i < _iLen; _i++) {\n            for (_j = j; _j < _jLen; _j++) {\n              index = (_i * 4) * jLen + (_j * 4);\n              data[index] = r;\n              data[index + 1] = g;\n              data[index + 2] = b;\n              data[index + 3] = a;\n            }\n          }\n        }\n      }\n    },\n\n    /**\n     * Indicate when the filter is not gonna apply changes to the image\n     **/\n    isNeutralState: function() {\n      return this.blocksize === 1;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uBlocksize: gl.getUniformLocation(program, 'uBlocksize'),\n        uStepW: gl.getUniformLocation(program, 'uStepW'),\n        uStepH: gl.getUniformLocation(program, 'uStepH'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uBlocksize, this.blocksize);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Pixelate} Instance of fabric.Image.filters.Pixelate\n   */\n  fabric.Image.filters.Pixelate.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Remove white filter class\n   * @class fabric.Image.filters.RemoveColor\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.RemoveColor#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.RemoveColor({\n   *   threshold: 0.2,\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.RemoveColor = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.RemoveColor.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'RemoveColor',\n\n    /**\n     * Color to remove, in any format understood by fabric.Color.\n     * @param {String} type\n     * @default\n     */\n    color: '#FFFFFF',\n\n    /**\n     * Fragment source for the brightness program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec4 uLow;\\n' +\n      'uniform vec4 uHigh;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'gl_FragColor = texture2D(uTexture, vTexCoord);\\n' +\n        'if(all(greaterThan(gl_FragColor.rgb,uLow.rgb)) && all(greaterThan(uHigh.rgb,gl_FragColor.rgb))) {\\n' +\n          'gl_FragColor.a = 0.0;\\n' +\n        '}\\n' +\n      '}',\n\n    /**\n     * distance to actual color, as value up or down from each r,g,b\n     * between 0 and 1\n     **/\n    distance: 0.02,\n\n    /**\n     * For color to remove inside distance, use alpha channel for a smoother deletion\n     * NOT IMPLEMENTED YET\n     **/\n    useAlpha: false,\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.RemoveWhite.prototype\n     * @param {Object} [options] Options object\n     * @param {Number} [options.color=#RRGGBB] Threshold value\n     * @param {Number} [options.distance=10] Distance value\n     */\n\n    /**\n     * Applies filter to canvas element\n     * @param {Object} canvasEl Canvas element to apply filter to\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, i,\n          distance = this.distance * 255,\n          r, g, b,\n          source = new fabric.Color(this.color).getSource(),\n          lowC = [\n            source[0] - distance,\n            source[1] - distance,\n            source[2] - distance,\n          ],\n          highC = [\n            source[0] + distance,\n            source[1] + distance,\n            source[2] + distance,\n          ];\n\n\n      for (i = 0; i < data.length; i += 4) {\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n\n        if (r > lowC[0] &&\n            g > lowC[1] &&\n            b > lowC[2] &&\n            r < highC[0] &&\n            g < highC[1] &&\n            b < highC[2]) {\n          data[i + 3] = 0;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uLow: gl.getUniformLocation(program, 'uLow'),\n        uHigh: gl.getUniformLocation(program, 'uHigh'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var source = new fabric.Color(this.color).getSource(),\n          distance = parseFloat(this.distance),\n          lowC = [\n            0 + source[0] / 255 - distance,\n            0 + source[1] / 255 - distance,\n            0 + source[2] / 255 - distance,\n            1\n          ],\n          highC = [\n            source[0] / 255 + distance,\n            source[1] / 255 + distance,\n            source[2] / 255 + distance,\n            1\n          ];\n      gl.uniform4fv(uniformLocations.uLow, lowC);\n      gl.uniform4fv(uniformLocations.uHigh, highC);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return extend(this.callSuper('toObject'), {\n        color: this.color,\n        distance: this.distance\n      });\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.RemoveColor} Instance of fabric.Image.filters.RemoveWhite\n   */\n  fabric.Image.filters.RemoveColor.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  var matrices = {\n    Brownie: [\n      0.59970,0.34553,-0.27082,0,0.186,\n      -0.03770,0.86095,0.15059,0,-0.1449,\n      0.24113,-0.07441,0.44972,0,-0.02965,\n      0,0,0,1,0\n    ],\n    Vintage: [\n      0.62793,0.32021,-0.03965,0,0.03784,\n      0.02578,0.64411,0.03259,0,0.02926,\n      0.04660,-0.08512,0.52416,0,0.02023,\n      0,0,0,1,0\n    ],\n    Kodachrome: [\n      1.12855,-0.39673,-0.03992,0,0.24991,\n      -0.16404,1.08352,-0.05498,0,0.09698,\n      -0.16786,-0.56034,1.60148,0,0.13972,\n      0,0,0,1,0\n    ],\n    Technicolor: [\n      1.91252,-0.85453,-0.09155,0,0.04624,\n      -0.30878,1.76589,-0.10601,0,-0.27589,\n      -0.23110,-0.75018,1.84759,0,0.12137,\n      0,0,0,1,0\n    ],\n    Polaroid: [\n      1.438,-0.062,-0.062,0,0,\n      -0.122,1.378,-0.122,0,0,\n      -0.016,-0.016,1.483,0,0,\n      0,0,0,1,0\n    ],\n    Sepia: [\n      0.393, 0.769, 0.189, 0, 0,\n      0.349, 0.686, 0.168, 0, 0,\n      0.272, 0.534, 0.131, 0, 0,\n      0, 0, 0, 1, 0\n    ],\n    BlackWhite: [\n      1.5, 1.5, 1.5, 0, -1,\n      1.5, 1.5, 1.5, 0, -1,\n      1.5, 1.5, 1.5, 0, -1,\n      0, 0, 0, 1, 0,\n    ]\n  };\n\n  for (var key in matrices) {\n    filters[key] = createClass(filters.ColorMatrix, /** @lends fabric.Image.filters.Sepia.prototype */ {\n\n      /**\n       * Filter type\n       * @param {String} type\n       * @default\n       */\n      type: key,\n\n      /**\n       * Colormatrix for the effect\n       * array of 20 floats. Numbers in positions 4, 9, 14, 19 loose meaning\n       * outside the -1, 1 range.\n       * @param {Array} matrix array of 20 numbers.\n       * @default\n       */\n      matrix: matrices[key],\n\n      /**\n       * Lock the matrix export for this kind of static, parameter less filters.\n       */\n      mainParameter: false,\n      /**\n       * Lock the colormatrix on the color part, skipping alpha\n       */\n      colorsOnly: true,\n\n    });\n    fabric.Image.filters[key].fromObject = fabric.Image.filters.BaseFilter.fromObject;\n  }\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n  'use strict';\n\n  var fabric = global.fabric,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Color Blend filter class\n   * @class fabric.Image.filter.BlendColor\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @example\n   * var filter = new fabric.Image.filters.BlendColor({\n   *  color: '#000',\n   *  mode: 'multiply'\n   * });\n   *\n   * var filter = new fabric.Image.filters.BlendImage({\n   *  image: fabricImageObject,\n   *  mode: 'multiply',\n   *  alpha: 0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n\n  filters.BlendColor = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Blend.prototype */ {\n    type: 'BlendColor',\n\n    /**\n     * Color to make the blend operation with. default to a reddish color since black or white\n     * gives always strong result.\n     **/\n    color: '#F95C63',\n\n    /**\n     * Blend mode for the filter: one of multiply, add, diff, screen, subtract,\n     * darken, lighten, overlay, exclusion, tint.\n     **/\n    mode: 'multiply',\n\n    /**\n     * alpha value. represent the strength of the blend color operation.\n     **/\n    alpha: 1,\n\n    /**\n     * Fragment source for the Multiply program\n     */\n    fragmentSource: {\n      multiply: 'gl_FragColor.rgb *= uColor.rgb;\\n',\n      screen: 'gl_FragColor.rgb = 1.0 - (1.0 - gl_FragColor.rgb) * (1.0 - uColor.rgb);\\n',\n      add: 'gl_FragColor.rgb += uColor.rgb;\\n',\n      diff: 'gl_FragColor.rgb = abs(gl_FragColor.rgb - uColor.rgb);\\n',\n      subtract: 'gl_FragColor.rgb -= uColor.rgb;\\n',\n      lighten: 'gl_FragColor.rgb = max(gl_FragColor.rgb, uColor.rgb);\\n',\n      darken: 'gl_FragColor.rgb = min(gl_FragColor.rgb, uColor.rgb);\\n',\n      exclusion: 'gl_FragColor.rgb += uColor.rgb - 2.0 * (uColor.rgb * gl_FragColor.rgb);\\n',\n      overlay: 'if (uColor.r < 0.5) {\\n' +\n          'gl_FragColor.r *= 2.0 * uColor.r;\\n' +\n        '} else {\\n' +\n          'gl_FragColor.r = 1.0 - 2.0 * (1.0 - gl_FragColor.r) * (1.0 - uColor.r);\\n' +\n        '}\\n' +\n        'if (uColor.g < 0.5) {\\n' +\n          'gl_FragColor.g *= 2.0 * uColor.g;\\n' +\n        '} else {\\n' +\n          'gl_FragColor.g = 1.0 - 2.0 * (1.0 - gl_FragColor.g) * (1.0 - uColor.g);\\n' +\n        '}\\n' +\n        'if (uColor.b < 0.5) {\\n' +\n          'gl_FragColor.b *= 2.0 * uColor.b;\\n' +\n        '} else {\\n' +\n          'gl_FragColor.b = 1.0 - 2.0 * (1.0 - gl_FragColor.b) * (1.0 - uColor.b);\\n' +\n        '}\\n',\n      tint: 'gl_FragColor.rgb *= (1.0 - uColor.a);\\n' +\n        'gl_FragColor.rgb += uColor.rgb;\\n',\n    },\n\n    /**\n     * build the fragment source for the filters, joining the common part with\n     * the specific one.\n     * @param {String} mode the mode of the filter, a key of this.fragmentSource\n     * @return {String} the source to be compiled\n     * @private\n     */\n    buildSource: function(mode) {\n      return 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform vec4 uColor;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'gl_FragColor = color;\\n' +\n          'if (color.a > 0.0) {\\n' +\n            this.fragmentSource[mode] +\n          '}\\n' +\n        '}';\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var cacheKey = this.type + '_' + this.mode, shaderSource;\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        shaderSource = this.buildSource(this.mode);\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    /**\n     * Apply the Blend operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, iLen = data.length,\n          tr, tg, tb,\n          r, g, b,\n          source, alpha1 = 1 - this.alpha;\n\n      source = new fabric.Color(this.color).getSource();\n      tr = source[0] * this.alpha;\n      tg = source[1] * this.alpha;\n      tb = source[2] * this.alpha;\n\n      for (var i = 0; i < iLen; i += 4) {\n\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n\n        switch (this.mode) {\n          case 'multiply':\n            data[i] = r * tr / 255;\n            data[i + 1] = g * tg / 255;\n            data[i + 2] = b * tb / 255;\n            break;\n          case 'screen':\n            data[i] = 255 - (255 - r) * (255 - tr) / 255;\n            data[i + 1] = 255 - (255 - g) * (255 - tg) / 255;\n            data[i + 2] = 255 - (255 - b) * (255 - tb) / 255;\n            break;\n          case 'add':\n            data[i] = r + tr;\n            data[i + 1] = g + tg;\n            data[i + 2] = b + tb;\n            break;\n          case 'diff':\n          case 'difference':\n            data[i] = Math.abs(r - tr);\n            data[i + 1] = Math.abs(g - tg);\n            data[i + 2] = Math.abs(b - tb);\n            break;\n          case 'subtract':\n            data[i] = r - tr;\n            data[i + 1] = g - tg;\n            data[i + 2] = b - tb;\n            break;\n          case 'darken':\n            data[i] = Math.min(r, tr);\n            data[i + 1] = Math.min(g, tg);\n            data[i + 2] = Math.min(b, tb);\n            break;\n          case 'lighten':\n            data[i] = Math.max(r, tr);\n            data[i + 1] = Math.max(g, tg);\n            data[i + 2] = Math.max(b, tb);\n            break;\n          case 'overlay':\n            data[i] = tr < 128 ? (2 * r * tr / 255) : (255 - 2 * (255 - r) * (255 - tr) / 255);\n            data[i + 1] = tg < 128 ? (2 * g * tg / 255) : (255 - 2 * (255 - g) * (255 - tg) / 255);\n            data[i + 2] = tb < 128 ? (2 * b * tb / 255) : (255 - 2 * (255 - b) * (255 - tb) / 255);\n            break;\n          case 'exclusion':\n            data[i] = tr + r - ((2 * tr * r) / 255);\n            data[i + 1] = tg + g - ((2 * tg * g) / 255);\n            data[i + 2] = tb + b - ((2 * tb * b) / 255);\n            break;\n          case 'tint':\n            data[i] = tr + r * alpha1;\n            data[i + 1] = tg + g * alpha1;\n            data[i + 2] = tb + b * alpha1;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uColor: gl.getUniformLocation(program, 'uColor'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var source = new fabric.Color(this.color).getSource();\n      source[0] = this.alpha * source[0] / 255;\n      source[1] = this.alpha * source[1] / 255;\n      source[2] = this.alpha * source[2] / 255;\n      source[3] = this.alpha;\n      gl.uniform4fv(uniformLocations.uColor, source);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return {\n        type: this.type,\n        color: this.color,\n        mode: this.mode,\n        alpha: this.alpha\n      };\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.BlendColor} Instance of fabric.Image.filters.BlendColor\n   */\n  fabric.Image.filters.BlendColor.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n  'use strict';\n\n  var fabric = global.fabric,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Image Blend filter class\n   * @class fabric.Image.filter.BlendImage\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @example\n   * var filter = new fabric.Image.filters.BlendColor({\n   *  color: '#000',\n   *  mode: 'multiply'\n   * });\n   *\n   * var filter = new fabric.Image.filters.BlendImage({\n   *  image: fabricImageObject,\n   *  mode: 'multiply',\n   *  alpha: 0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n\n  filters.BlendImage = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.BlendImage.prototype */ {\n    type: 'BlendImage',\n\n    /**\n     * Color to make the blend operation with. default to a reddish color since black or white\n     * gives always strong result.\n     **/\n    image: null,\n\n    /**\n     * Blend mode for the filter: one of multiply, add, diff, screen, subtract,\n     * darken, lighten, overlay, exclusion, tint.\n     **/\n    mode: 'multiply',\n\n    /**\n     * alpha value. represent the strength of the blend image operation.\n     * not implemented.\n     **/\n    alpha: 1,\n\n    vertexSource: 'attribute vec2 aPosition;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'varying vec2 vTexCoord2;\\n' +\n      'uniform mat3 uTransformMatrix;\\n' +\n      'void main() {\\n' +\n        'vTexCoord = aPosition;\\n' +\n        'vTexCoord2 = (uTransformMatrix * vec3(aPosition, 1.0)).xy;\\n' +\n        'gl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\\n' +\n      '}',\n\n    /**\n     * Fragment source for the Multiply program\n     */\n    fragmentSource: {\n      multiply: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform sampler2D uImage;\\n' +\n        'uniform vec4 uColor;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'varying vec2 vTexCoord2;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'vec4 color2 = texture2D(uImage, vTexCoord2);\\n' +\n          'color.rgba *= color2.rgba;\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      mask: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform sampler2D uImage;\\n' +\n        'uniform vec4 uColor;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'varying vec2 vTexCoord2;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'vec4 color2 = texture2D(uImage, vTexCoord2);\\n' +\n          'color.a = color2.a;\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var cacheKey = this.type + '_' + this.mode;\n      var shaderSource = this.fragmentSource[this.mode];\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    applyToWebGL: function(options) {\n      // load texture to blend.\n      var gl = options.context,\n          texture = this.createTexture(options.filterBackend, this.image);\n      this.bindAdditionalTexture(gl, texture, gl.TEXTURE1);\n      this.callSuper('applyToWebGL', options);\n      this.unbindAdditionalTexture(gl, gl.TEXTURE1);\n    },\n\n    createTexture: function(backend, image) {\n      return backend.getCachedTexture(image.cacheKey, image._element);\n    },\n\n    /**\n     * Calculate a transformMatrix to adapt the image to blend over\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    calculateMatrix: function() {\n      var image = this.image,\n          width = image._element.width,\n          height = image._element.height;\n      return [\n        1 / image.scaleX, 0, 0,\n        0, 1 / image.scaleY, 0,\n        -image.left / width, -image.top / height, 1\n      ];\n    },\n\n    /**\n     * Apply the Blend operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          resources = options.filterBackend.resources,\n          data = imageData.data, iLen = data.length,\n          width = imageData.width,\n          height = imageData.height,\n          tr, tg, tb, ta,\n          r, g, b, a,\n          canvas1, context, image = this.image, blendData;\n\n      if (!resources.blendImage) {\n        resources.blendImage = fabric.util.createCanvasElement();\n      }\n      canvas1 = resources.blendImage;\n      context = canvas1.getContext('2d');\n      if (canvas1.width !== width || canvas1.height !== height) {\n        canvas1.width = width;\n        canvas1.height = height;\n      }\n      else {\n        context.clearRect(0, 0, width, height);\n      }\n      context.setTransform(image.scaleX, 0, 0, image.scaleY, image.left, image.top);\n      context.drawImage(image._element, 0, 0, width, height);\n      blendData = context.getImageData(0, 0, width, height).data;\n      for (var i = 0; i < iLen; i += 4) {\n\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n        a = data[i + 3];\n\n        tr = blendData[i];\n        tg = blendData[i + 1];\n        tb = blendData[i + 2];\n        ta = blendData[i + 3];\n\n        switch (this.mode) {\n          case 'multiply':\n            data[i] = r * tr / 255;\n            data[i + 1] = g * tg / 255;\n            data[i + 2] = b * tb / 255;\n            data[i + 3] = a * ta / 255;\n            break;\n          case 'mask':\n            data[i + 3] = ta;\n            break;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uTransformMatrix: gl.getUniformLocation(program, 'uTransformMatrix'),\n        uImage: gl.getUniformLocation(program, 'uImage'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var matrix = this.calculateMatrix();\n      gl.uniform1i(uniformLocations.uImage, 1); // texture unit 1.\n      gl.uniformMatrix3fv(uniformLocations.uTransformMatrix, false, matrix);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return {\n        type: this.type,\n        image: this.image && this.image.toObject(),\n        mode: this.mode,\n        alpha: this.alpha\n      };\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} callback to be invoked after filter creation\n   * @return {fabric.Image.filters.BlendImage} Instance of fabric.Image.filters.BlendImage\n   */\n  fabric.Image.filters.BlendImage.fromObject = function(object, callback) {\n    fabric.Image.fromObject(object.image, function(image) {\n      var options = fabric.util.object.clone(object);\n      options.image = image;\n      callback(new fabric.Image.filters.BlendImage(options));\n    });\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }), pow = Math.pow, floor = Math.floor,\n      sqrt = Math.sqrt, abs = Math.abs, round = Math.round, sin = Math.sin,\n      ceil = Math.ceil,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Resize image filter class\n   * @class fabric.Image.filters.Resize\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Resize();\n   * object.filters.push(filter);\n   * object.applyFilters(canvas.renderAll.bind(canvas));\n   */\n  filters.Resize = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Resize.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Resize',\n\n    /**\n     * Resize type\n     * for webgl resizeType is just lanczos, for canvas2d can be:\n     * bilinear, hermite, sliceHack, lanczos.\n     * @param {String} resizeType\n     * @default\n     */\n    resizeType: 'hermite',\n\n    /**\n     * Scale factor for resizing, x axis\n     * @param {Number} scaleX\n     * @default\n     */\n    scaleX: 1,\n\n    /**\n     * Scale factor for resizing, y axis\n     * @param {Number} scaleY\n     * @default\n     */\n    scaleY: 1,\n\n    /**\n     * LanczosLobes parameter for lanczos filter, valid for resizeType lanczos\n     * @param {Number} lanczosLobes\n     * @default\n     */\n    lanczosLobes: 3,\n\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uDelta: gl.getUniformLocation(program, 'uDelta'),\n        uTaps: gl.getUniformLocation(program, 'uTaps'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform2fv(uniformLocations.uDelta, this.horizontal ? [1 / this.width, 0] : [0, 1 / this.height]);\n      gl.uniform1fv(uniformLocations.uTaps, this.taps);\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var filterWindow = this.getFilterWindow(), cacheKey = this.type + '_' + filterWindow;\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        var fragmentShader = this.generateShader(filterWindow);\n        options.programCache[cacheKey] = this.createProgram(options.context, fragmentShader);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    getFilterWindow: function() {\n      var scale = this.tempScale;\n      return Math.ceil(this.lanczosLobes / scale);\n    },\n\n    getTaps: function() {\n      var lobeFunction = this.lanczosCreate(this.lanczosLobes), scale = this.tempScale,\n          filterWindow = this.getFilterWindow(), taps = new Array(filterWindow);\n      for (var i = 1; i <= filterWindow; i++) {\n        taps[i - 1] = lobeFunction(i * scale);\n      }\n      return taps;\n    },\n\n    /**\n     * Generate vertex and shader sources from the necessary steps numbers\n     * @param {Number} filterWindow\n     */\n    generateShader: function(filterWindow) {\n      var offsets = new Array(filterWindow),\n          fragmentShader = this.fragmentSourceTOP, filterWindow;\n\n      for (var i = 1; i <= filterWindow; i++) {\n        offsets[i - 1] = i + '.0 * uDelta';\n      }\n\n      fragmentShader += 'uniform float uTaps[' + filterWindow + '];\\n';\n      fragmentShader += 'void main() {\\n';\n      fragmentShader += '  vec4 color = texture2D(uTexture, vTexCoord);\\n';\n      fragmentShader += '  float sum = 1.0;\\n';\n\n      offsets.forEach(function(offset, i) {\n        fragmentShader += '  color += texture2D(uTexture, vTexCoord + ' + offset + ') * uTaps[' + i + '];\\n';\n        fragmentShader += '  color += texture2D(uTexture, vTexCoord - ' + offset + ') * uTaps[' + i + '];\\n';\n        fragmentShader += '  sum += 2.0 * uTaps[' + i + '];\\n';\n      });\n      fragmentShader += '  gl_FragColor = color / sum;\\n';\n      fragmentShader += '}';\n      return fragmentShader;\n    },\n\n    fragmentSourceTOP: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec2 uDelta;\\n' +\n      'varying vec2 vTexCoord;\\n',\n\n    /**\n     * Apply the resize filter to the image\n     * Determines whether to use WebGL or Canvas2D based on the options.webgl flag.\n     *\n     * @param {Object} options\n     * @param {Number} options.passes The number of filters remaining to be executed\n     * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n     * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n     * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    applyTo: function(options) {\n      if (options.webgl) {\n        options.passes++;\n        this.width = options.sourceWidth;\n        this.horizontal = true;\n        this.dW = Math.round(this.width * this.scaleX);\n        this.dH = options.sourceHeight;\n        this.tempScale = this.dW / this.width;\n        this.taps = this.getTaps();\n        options.destinationWidth = this.dW;\n        this._setupFrameBuffer(options);\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n        options.sourceWidth = options.destinationWidth;\n\n        this.height = options.sourceHeight;\n        this.horizontal = false;\n        this.dH = Math.round(this.height * this.scaleY);\n        this.tempScale = this.dH / this.height;\n        this.taps = this.getTaps();\n        options.destinationHeight = this.dH;\n        this._setupFrameBuffer(options);\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n        options.sourceHeight = options.destinationHeight;\n      }\n      else {\n        this.applyTo2d(options);\n      }\n    },\n\n    isNeutralState: function() {\n      return this.scaleX === 1 && this.scaleY === 1;\n    },\n\n    lanczosCreate: function(lobes) {\n      return function(x) {\n        if (x >= lobes || x <= -lobes) {\n          return 0.0;\n        }\n        if (x < 1.19209290E-07 && x > -1.19209290E-07) {\n          return 1.0;\n        }\n        x *= Math.PI;\n        var xx = x / lobes;\n        return (sin(x) / x) * sin(xx) / xx;\n      };\n    },\n\n    /**\n     * Applies filter to canvas element\n     * @memberOf fabric.Image.filters.Resize.prototype\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} scaleX\n     * @param {Number} scaleY\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          scaleX = this.scaleX,\n          scaleY = this.scaleY;\n\n      this.rcpScaleX = 1 / scaleX;\n      this.rcpScaleY = 1 / scaleY;\n\n      var oW = imageData.width, oH = imageData.height,\n          dW = round(oW * scaleX), dH = round(oH * scaleY),\n          newData;\n\n      if (this.resizeType === 'sliceHack') {\n        newData = this.sliceByTwo(options, oW, oH, dW, dH);\n      }\n      else if (this.resizeType === 'hermite') {\n        newData = this.hermiteFastResize(options, oW, oH, dW, dH);\n      }\n      else if (this.resizeType === 'bilinear') {\n        newData = this.bilinearFiltering(options, oW, oH, dW, dH);\n      }\n      else if (this.resizeType === 'lanczos') {\n        newData = this.lanczosResize(options, oW, oH, dW, dH);\n      }\n      options.imageData = newData;\n    },\n\n    /**\n     * Filter sliceByTwo\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    sliceByTwo: function(options, oW, oH, dW, dH) {\n      var imageData = options.imageData,\n          mult = 0.5, doneW = false, doneH = false, stepW = oW * mult,\n          stepH = oH * mult, resources = fabric.filterBackend.resources,\n          tmpCanvas, ctx, sX = 0, sY = 0, dX = oW, dY = 0;\n      if (!resources.sliceByTwo) {\n        resources.sliceByTwo = document.createElement('canvas');\n      }\n      tmpCanvas = resources.sliceByTwo;\n      if (tmpCanvas.width < oW * 1.5 || tmpCanvas.height < oH) {\n        tmpCanvas.width = oW * 1.5;\n        tmpCanvas.height = oH;\n      }\n      ctx = tmpCanvas.getContext('2d');\n      ctx.clearRect(0, 0, oW * 1.5, oH);\n      ctx.putImageData(imageData, 0, 0);\n\n      dW = floor(dW);\n      dH = floor(dH);\n\n      while (!doneW || !doneH) {\n        oW = stepW;\n        oH = stepH;\n        if (dW < floor(stepW * mult)) {\n          stepW = floor(stepW * mult);\n        }\n        else {\n          stepW = dW;\n          doneW = true;\n        }\n        if (dH < floor(stepH * mult)) {\n          stepH = floor(stepH * mult);\n        }\n        else {\n          stepH = dH;\n          doneH = true;\n        }\n        ctx.drawImage(tmpCanvas, sX, sY, oW, oH, dX, dY, stepW, stepH);\n        sX = dX;\n        sY = dY;\n        dY += stepH;\n      }\n      return ctx.getImageData(sX, sY, dW, dH);\n    },\n\n    /**\n     * Filter lanczosResize\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    lanczosResize: function(options, oW, oH, dW, dH) {\n\n      function process(u) {\n        var v, i, weight, idx, a, red, green,\n            blue, alpha, fX, fY;\n        center.x = (u + 0.5) * ratioX;\n        icenter.x = floor(center.x);\n        for (v = 0; v < dH; v++) {\n          center.y = (v + 0.5) * ratioY;\n          icenter.y = floor(center.y);\n          a = 0; red = 0; green = 0; blue = 0; alpha = 0;\n          for (i = icenter.x - range2X; i <= icenter.x + range2X; i++) {\n            if (i < 0 || i >= oW) {\n              continue;\n            }\n            fX = floor(1000 * abs(i - center.x));\n            if (!cacheLanc[fX]) {\n              cacheLanc[fX] = { };\n            }\n            for (var j = icenter.y - range2Y; j <= icenter.y + range2Y; j++) {\n              if (j < 0 || j >= oH) {\n                continue;\n              }\n              fY = floor(1000 * abs(j - center.y));\n              if (!cacheLanc[fX][fY]) {\n                cacheLanc[fX][fY] = lanczos(sqrt(pow(fX * rcpRatioX, 2) + pow(fY * rcpRatioY, 2)) / 1000);\n              }\n              weight = cacheLanc[fX][fY];\n              if (weight > 0) {\n                idx = (j * oW + i) * 4;\n                a += weight;\n                red += weight * srcData[idx];\n                green += weight * srcData[idx + 1];\n                blue += weight * srcData[idx + 2];\n                alpha += weight * srcData[idx + 3];\n              }\n            }\n          }\n          idx = (v * dW + u) * 4;\n          destData[idx] = red / a;\n          destData[idx + 1] = green / a;\n          destData[idx + 2] = blue / a;\n          destData[idx + 3] = alpha / a;\n        }\n\n        if (++u < dW) {\n          return process(u);\n        }\n        else {\n          return destImg;\n        }\n      }\n\n      var srcData = options.imageData.data,\n          destImg = options.ctx.createImageData(dW, dH),\n          destData = destImg.data,\n          lanczos = this.lanczosCreate(this.lanczosLobes),\n          ratioX = this.rcpScaleX, ratioY = this.rcpScaleY,\n          rcpRatioX = 2 / this.rcpScaleX, rcpRatioY = 2 / this.rcpScaleY,\n          range2X = ceil(ratioX * this.lanczosLobes / 2),\n          range2Y = ceil(ratioY * this.lanczosLobes / 2),\n          cacheLanc = { }, center = { }, icenter = { };\n\n      return process(0);\n    },\n\n    /**\n     * bilinearFiltering\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    bilinearFiltering: function(options, oW, oH, dW, dH) {\n      var a, b, c, d, x, y, i, j, xDiff, yDiff, chnl,\n          color, offset = 0, origPix, ratioX = this.rcpScaleX,\n          ratioY = this.rcpScaleY,\n          w4 = 4 * (oW - 1), img = options.imageData,\n          pixels = img.data, destImage = options.ctx.createImageData(dW, dH),\n          destPixels = destImage.data;\n      for (i = 0; i < dH; i++) {\n        for (j = 0; j < dW; j++) {\n          x = floor(ratioX * j);\n          y = floor(ratioY * i);\n          xDiff = ratioX * j - x;\n          yDiff = ratioY * i - y;\n          origPix = 4 * (y * oW + x);\n\n          for (chnl = 0; chnl < 4; chnl++) {\n            a = pixels[origPix + chnl];\n            b = pixels[origPix + 4 + chnl];\n            c = pixels[origPix + w4 + chnl];\n            d = pixels[origPix + w4 + 4 + chnl];\n            color = a * (1 - xDiff) * (1 - yDiff) + b * xDiff * (1 - yDiff) +\n                    c * yDiff * (1 - xDiff) + d * xDiff * yDiff;\n            destPixels[offset++] = color;\n          }\n        }\n      }\n      return destImage;\n    },\n\n    /**\n     * hermiteFastResize\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    hermiteFastResize: function(options, oW, oH, dW, dH) {\n      var ratioW = this.rcpScaleX, ratioH = this.rcpScaleY,\n          ratioWHalf = ceil(ratioW / 2),\n          ratioHHalf = ceil(ratioH / 2),\n          img = options.imageData, data = img.data,\n          img2 = options.ctx.createImageData(dW, dH), data2 = img2.data;\n      for (var j = 0; j < dH; j++) {\n        for (var i = 0; i < dW; i++) {\n          var x2 = (i + j * dW) * 4, weight = 0, weights = 0, weightsAlpha = 0,\n              gxR = 0, gxG = 0, gxB = 0, gxA = 0, centerY = (j + 0.5) * ratioH;\n          for (var yy = floor(j * ratioH); yy < (j + 1) * ratioH; yy++) {\n            var dy = abs(centerY - (yy + 0.5)) / ratioHHalf,\n                centerX = (i + 0.5) * ratioW, w0 = dy * dy;\n            for (var xx = floor(i * ratioW); xx < (i + 1) * ratioW; xx++) {\n              var dx = abs(centerX - (xx + 0.5)) / ratioWHalf,\n                  w = sqrt(w0 + dx * dx);\n              /* eslint-disable max-depth */\n              if (w > 1 && w < -1) {\n                continue;\n              }\n              //hermite filter\n              weight = 2 * w * w * w - 3 * w * w + 1;\n              if (weight > 0) {\n                dx = 4 * (xx + yy * oW);\n                //alpha\n                gxA += weight * data[dx + 3];\n                weightsAlpha += weight;\n                //colors\n                if (data[dx + 3] < 255) {\n                  weight = weight * data[dx + 3] / 250;\n                }\n                gxR += weight * data[dx];\n                gxG += weight * data[dx + 1];\n                gxB += weight * data[dx + 2];\n                weights += weight;\n              }\n              /* eslint-enable max-depth */\n            }\n          }\n          data2[x2] = gxR / weights;\n          data2[x2 + 1] = gxG / weights;\n          data2[x2 + 2] = gxB / weights;\n          data2[x2 + 3] = gxA / weightsAlpha;\n        }\n      }\n      return img2;\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return {\n        type: this.type,\n        scaleX: this.scaleX,\n        scaleY: this.scaleY,\n        resizeType: this.resizeType,\n        lanczosLobes: this.lanczosLobes\n      };\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Resize} Instance of fabric.Image.filters.Resize\n   */\n  fabric.Image.filters.Resize.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Contrast filter class\n   * @class fabric.Image.filters.Contrast\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Contrast#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Contrast({\n   *   contrast: 0.25\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Contrast = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Contrast.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Contrast',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uContrast;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'float contrastF = 1.015 * (uContrast + 1.0) / (1.0 * (1.015 - uContrast));\\n' +\n        'color.rgb = contrastF * (color.rgb - 0.5) + 0.5;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * contrast value, range from -1 to 1.\n     * @param {Number} contrast\n     * @default 0\n     */\n    contrast: 0,\n\n    mainParameter: 'contrast',\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.Contrast.prototype\n     * @param {Object} [options] Options object\n     * @param {Number} [options.contrast=0] Value to contrast the image up (-1...1)\n     */\n\n    /**\n      * Apply the Contrast operation to a Uint8Array representing the pixels of an image.\n      *\n      * @param {Object} options\n      * @param {ImageData} options.imageData The Uint8Array to be filtered.\n      */\n    applyTo2d: function(options) {\n      if (this.contrast === 0) {\n        return;\n      }\n      var imageData = options.imageData, i, len,\n          data = imageData.data, len = data.length,\n          contrast = Math.floor(this.contrast * 255),\n          contrastF = 259 * (contrast + 255) / (255 * (259 - contrast));\n\n      for (i = 0; i < len; i += 4) {\n        data[i] = contrastF * (data[i] - 128) + 128;\n        data[i + 1] = contrastF * (data[i + 1] - 128) + 128;\n        data[i + 2] = contrastF * (data[i + 2] - 128) + 128;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uContrast: gl.getUniformLocation(program, 'uContrast'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uContrast, this.contrast);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Contrast} Instance of fabric.Image.filters.Contrast\n   */\n  fabric.Image.filters.Contrast.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Saturate filter class\n   * @class fabric.Image.filters.Saturation\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Saturation#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Saturation({\n   *   saturation: 100\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Saturation = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Saturation.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Saturation',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uSaturation;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'float rgMax = max(color.r, color.g);\\n' +\n        'float rgbMax = max(rgMax, color.b);\\n' +\n        'color.r += rgbMax != color.r ? (rgbMax - color.r) * uSaturation : 0.00;\\n' +\n        'color.g += rgbMax != color.g ? (rgbMax - color.g) * uSaturation : 0.00;\\n' +\n        'color.b += rgbMax != color.b ? (rgbMax - color.b) * uSaturation : 0.00;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    saturation: 0,\n\n    mainParameter: 'saturation',\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.Saturate.prototype\n     * @param {Object} [options] Options object\n     * @param {Number} [options.saturate=0] Value to saturate the image (-1...1)\n     */\n\n    /**\n     * Apply the Saturation operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      if (this.saturation === 0) {\n        return;\n      }\n      var imageData = options.imageData,\n          data = imageData.data, len = data.length,\n          adjust = -this.saturation, i, max;\n\n      for (i = 0; i < len; i += 4) {\n        max = Math.max(data[i], data[i + 1], data[i + 2]);\n        data[i] += max !== data[i] ? (max - data[i]) * adjust : 0;\n        data[i + 1] += max !== data[i + 1] ? (max - data[i + 1]) * adjust : 0;\n        data[i + 2] += max !== data[i + 2] ? (max - data[i + 2]) * adjust : 0;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uSaturation: gl.getUniformLocation(program, 'uSaturation'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uSaturation, -this.saturation);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Saturation} Instance of fabric.Image.filters.Saturate\n   */\n  fabric.Image.filters.Saturation.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Blur filter class\n   * @class fabric.Image.filters.Blur\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Blur#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Blur({\n   *   blur: 0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.Blur = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Blur.prototype */ {\n\n    type: 'Blur',\n\n    /*\n'gl_FragColor = vec4(0.0);',\n'gl_FragColor += texture2D(texture, vTexCoord + -7 * uDelta)*0.0044299121055113265;',\n'gl_FragColor += texture2D(texture, vTexCoord + -6 * uDelta)*0.00895781211794;',\n'gl_FragColor += texture2D(texture, vTexCoord + -5 * uDelta)*0.0215963866053;',\n'gl_FragColor += texture2D(texture, vTexCoord + -4 * uDelta)*0.0443683338718;',\n'gl_FragColor += texture2D(texture, vTexCoord + -3 * uDelta)*0.0776744219933;',\n'gl_FragColor += texture2D(texture, vTexCoord + -2 * uDelta)*0.115876621105;',\n'gl_FragColor += texture2D(texture, vTexCoord + -1 * uDelta)*0.147308056121;',\n'gl_FragColor += texture2D(texture, vTexCoord              )*0.159576912161;',\n'gl_FragColor += texture2D(texture, vTexCoord + 1 * uDelta)*0.147308056121;',\n'gl_FragColor += texture2D(texture, vTexCoord + 2 * uDelta)*0.115876621105;',\n'gl_FragColor += texture2D(texture, vTexCoord + 3 * uDelta)*0.0776744219933;',\n'gl_FragColor += texture2D(texture, vTexCoord + 4 * uDelta)*0.0443683338718;',\n'gl_FragColor += texture2D(texture, vTexCoord + 5 * uDelta)*0.0215963866053;',\n'gl_FragColor += texture2D(texture, vTexCoord + 6 * uDelta)*0.00895781211794;',\n'gl_FragColor += texture2D(texture, vTexCoord + 7 * uDelta)*0.0044299121055113265;',\n*/\n\n    /* eslint-disable max-len */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec2 uDelta;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'const float nSamples = 15.0;\\n' +\n      'vec3 v3offset = vec3(12.9898, 78.233, 151.7182);\\n' +\n      'float random(vec3 scale) {\\n' +\n        /* use the fragment position for a different seed per-pixel */\n        'return fract(sin(dot(gl_FragCoord.xyz, scale)) * 43758.5453);\\n' +\n      '}\\n' +\n      'void main() {\\n' +\n        'vec4 color = vec4(0.0);\\n' +\n        'float total = 0.0;\\n' +\n        'float offset = random(v3offset);\\n' +\n        'for (float t = -nSamples; t <= nSamples; t++) {\\n' +\n          'float percent = (t + offset - 0.5) / nSamples;\\n' +\n          'float weight = 1.0 - abs(percent);\\n' +\n          'color += texture2D(uTexture, vTexCoord + uDelta * percent) * weight;\\n' +\n          'total += weight;\\n' +\n        '}\\n' +\n        'gl_FragColor = color / total;\\n' +\n      '}',\n    /* eslint-enable max-len */\n\n    /**\n     * blur value, in percentage of image dimensions.\n     * specific to keep the image blur constant at different resolutions\n     * range bewteen 0 and 1.\n     */\n    blur: 0,\n\n    mainParameter: 'blur',\n\n    applyTo: function(options) {\n      if (options.webgl) {\n        // this aspectRatio is used to give the same blur to vertical and horizontal\n        this.aspectRatio = options.sourceWidth / options.sourceHeight;\n        options.passes++;\n        this._setupFrameBuffer(options);\n        this.horizontal = true;\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n        this._setupFrameBuffer(options);\n        this.horizontal = false;\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n      }\n      else {\n        this.applyTo2d(options);\n      }\n    },\n\n    applyTo2d: function(options) {\n      // paint canvasEl with current image data.\n      //options.ctx.putImageData(options.imageData, 0, 0);\n      options.imageData = this.simpleBlur(options);\n    },\n\n    simpleBlur: function(options) {\n      var resources = options.filterBackend.resources, canvas1, canvas2,\n          width = options.imageData.width,\n          height = options.imageData.height;\n\n      if (!resources.blurLayer1) {\n        resources.blurLayer1 = fabric.util.createCanvasElement();\n        resources.blurLayer2 = fabric.util.createCanvasElement();\n      }\n      canvas1 = resources.blurLayer1;\n      canvas2 = resources.blurLayer2;\n      if (canvas1.width !== width || canvas1.height !== height) {\n        canvas2.width = canvas1.width = width;\n        canvas2.height = canvas1.height = height;\n      }\n      var ctx1 = canvas1.getContext('2d'),\n          ctx2 = canvas2.getContext('2d'),\n          nSamples = 15,\n          random, percent, j, i,\n          blur = this.blur * 0.06 * 0.5;\n\n      // load first canvas\n      ctx1.putImageData(options.imageData, 0, 0);\n      ctx2.clearRect(0, 0, width, height);\n\n      for (i = -nSamples; i <= nSamples; i++) {\n        random = (Math.random() - 0.5) / 4;\n        percent = i / nSamples;\n        j = blur * percent * width + random;\n        ctx2.globalAlpha = 1 - Math.abs(percent);\n        ctx2.drawImage(canvas1, j, random);\n        ctx1.drawImage(canvas2, 0, 0);\n        ctx2.globalAlpha = 1;\n        ctx2.clearRect(0, 0, canvas2.width, canvas2.height);\n      }\n      for (i = -nSamples; i <= nSamples; i++) {\n        random = (Math.random() - 0.5) / 4;\n        percent = i / nSamples;\n        j = blur * percent * height + random;\n        ctx2.globalAlpha = 1 - Math.abs(percent);\n        ctx2.drawImage(canvas1, random, j);\n        ctx1.drawImage(canvas2, 0, 0);\n        ctx2.globalAlpha = 1;\n        ctx2.clearRect(0, 0, canvas2.width, canvas2.height);\n      }\n      options.ctx.drawImage(canvas1, 0, 0);\n      var newImageData = options.ctx.getImageData(0, 0, canvas1.width, canvas1.height);\n      ctx1.globalAlpha = 1;\n      ctx1.clearRect(0, 0, canvas1.width, canvas1.height);\n      return newImageData;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        delta: gl.getUniformLocation(program, 'uDelta'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var delta = this.chooseRightDelta();\n      gl.uniform2fv(uniformLocations.delta, delta);\n    },\n\n    /**\n     * choose right value of image percentage to blur with\n     * @returns {Array} a numeric array with delta values\n     */\n    chooseRightDelta: function() {\n      var blurScale = 1, delta = [0, 0], blur;\n      if (this.horizontal) {\n        if (this.aspectRatio > 1) {\n          // image is wide, i want to shrink radius horizontal\n          blurScale = 1 / this.aspectRatio;\n        }\n      }\n      else {\n        if (this.aspectRatio < 1) {\n          // image is tall, i want to shrink radius vertical\n          blurScale = this.aspectRatio;\n        }\n      }\n      blur = blurScale * this.blur * 0.12;\n      if (this.horizontal) {\n        delta[0] = blur;\n      }\n      else {\n        delta[1] = blur;\n      }\n      return delta;\n    },\n  });\n\n  /**\n   * Deserialize a JSON definition of a BlurFilter into a concrete instance.\n   */\n  filters.Blur.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Gamma filter class\n   * @class fabric.Image.filters.Gamma\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Gamma#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Gamma({\n   *   brightness: 200\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Gamma = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Gamma.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Gamma',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec3 uGamma;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'vec3 correction = (1.0 / uGamma);\\n' +\n        'color.r = pow(color.r, correction.r);\\n' +\n        'color.g = pow(color.g, correction.g);\\n' +\n        'color.b = pow(color.b, correction.b);\\n' +\n        'gl_FragColor = color;\\n' +\n        'gl_FragColor.rgb *= color.a;\\n' +\n      '}',\n\n    /**\n     * Gamma array value, from 0.01 to 2.2.\n     * @param {Array} gamma\n     * @default\n     */\n    gamma: [1, 1, 1],\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'gamma',\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      this.gamma = [1, 1, 1];\n      filters.BaseFilter.prototype.initialize.call(this, options);\n    },\n\n    /**\n     * Apply the Gamma operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData, data = imageData.data,\n          gamma = this.gamma, len = data.length,\n          rInv = 1 / gamma[0], gInv = 1 / gamma[1],\n          bInv = 1 / gamma[2], i;\n\n      if (!this.rVals) {\n        // eslint-disable-next-line\n        this.rVals = new Uint8Array(256);\n        // eslint-disable-next-line\n        this.gVals = new Uint8Array(256);\n        // eslint-disable-next-line\n        this.bVals = new Uint8Array(256);\n      }\n\n      // This is an optimization - pre-compute a look-up table for each color channel\n      // instead of performing these pow calls for each pixel in the image.\n      for (i = 0, len = 256; i < len; i++) {\n        this.rVals[i] = Math.pow(i / 255, rInv) * 255;\n        this.gVals[i] = Math.pow(i / 255, gInv) * 255;\n        this.bVals[i] = Math.pow(i / 255, bInv) * 255;\n      }\n      for (i = 0, len = data.length; i < len; i += 4) {\n        data[i] = this.rVals[data[i]];\n        data[i + 1] = this.gVals[data[i + 1]];\n        data[i + 2] = this.bVals[data[i + 2]];\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uGamma: gl.getUniformLocation(program, 'uGamma'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform3fv(uniformLocations.uGamma, this.gamma);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Gamma} Instance of fabric.Image.filters.Gamma\n   */\n  fabric.Image.filters.Gamma.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * A container class that knows how to apply a sequence of filters to an input image.\n   */\n  filters.Composed = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Composed.prototype */ {\n\n    type: 'Composed',\n\n    /**\n     * A non sparse array of filters to apply\n     */\n    subFilters: [],\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      // create a new array instead mutating the prototype with push\n      this.subFilters = this.subFilters.slice(0);\n    },\n\n    /**\n     * Apply this container's filters to the input image provided.\n     *\n     * @param {Object} options\n     * @param {Number} options.passes The number of filters remaining to be applied.\n     */\n    applyTo: function(options) {\n      options.passes += this.subFilters.length - 1;\n      this.subFilters.forEach(function(filter) {\n        filter.applyTo(options);\n      });\n    },\n\n    /**\n     * Serialize this filter into JSON.\n     *\n     * @returns {Object} A JSON representation of this filter.\n     */\n    toObject: function() {\n      return fabric.util.object.extend(this.callSuper('toObject'), {\n        subFilters: this.subFilters.map(function(filter) { return filter.toObject(); }),\n      });\n    },\n\n    isNeutralState: function() {\n      return !this.subFilters.some(function(filter) { return !filter.isNeutralState(); });\n    }\n  });\n\n  /**\n   * Deserialize a JSON definition of a ComposedFilter into a concrete instance.\n   */\n  fabric.Image.filters.Composed.fromObject = function(object, callback) {\n    var filters = object.subFilters || [],\n        subFilters = filters.map(function(filter) {\n          return new fabric.Image.filters[filter.type](filter);\n        }),\n        instance = new fabric.Image.filters.Composed({ subFilters: subFilters });\n    callback && callback(instance);\n    return instance;\n  };\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * HueRotation filter class\n   * @class fabric.Image.filters.HueRotation\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.HueRotation#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.HueRotation({\n   *   rotation: -0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.HueRotation = createClass(filters.ColorMatrix, /** @lends fabric.Image.filters.HueRotation.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'HueRotation',\n\n    /**\n     * HueRotation value, from -1 to 1.\n     * the unit is radians\n     * @param {Number} myParameter\n     * @default\n     */\n    rotation: 0,\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'rotation',\n\n    calculateMatrix: function() {\n      var rad = this.rotation * Math.PI, cos = fabric.util.cos(rad), sin = fabric.util.sin(rad),\n          aThird = 1 / 3, aThirdSqtSin = Math.sqrt(aThird) * sin, OneMinusCos = 1 - cos;\n      this.matrix = [\n        1, 0, 0, 0, 0,\n        0, 1, 0, 0, 0,\n        0, 0, 1, 0, 0,\n        0, 0, 0, 1, 0\n      ];\n      this.matrix[0] = cos + OneMinusCos / 3;\n      this.matrix[1] = aThird * OneMinusCos - aThirdSqtSin;\n      this.matrix[2] = aThird * OneMinusCos + aThirdSqtSin;\n      this.matrix[5] = aThird * OneMinusCos + aThirdSqtSin;\n      this.matrix[6] = cos + aThird * OneMinusCos;\n      this.matrix[7] = aThird * OneMinusCos - aThirdSqtSin;\n      this.matrix[10] = aThird * OneMinusCos - aThirdSqtSin;\n      this.matrix[11] = aThird * OneMinusCos + aThirdSqtSin;\n      this.matrix[12] = cos + aThird * OneMinusCos;\n    },\n\n    /**\n     * HueRotation isNeutralState implementation\n     * Used only in image applyFilters to discard filters that will not have an effect\n     * on the image\n     * @param {Object} options\n     **/\n    isNeutralState: function(options) {\n      this.calculateMatrix();\n      return filters.BaseFilter.prototype.isNeutralState.call(this, options);\n    },\n\n    /**\n     * Apply this filter to the input image data provided.\n     *\n     * Determines whether to use WebGL or Canvas2D based on the options.webgl flag.\n     *\n     * @param {Object} options\n     * @param {Number} options.passes The number of filters remaining to be executed\n     * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n     * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n     * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    applyTo: function(options) {\n      this.calculateMatrix();\n      filters.BaseFilter.prototype.applyTo.call(this, options);\n    },\n\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.HueRotation} Instance of fabric.Image.filters.HueRotation\n   */\n  fabric.Image.filters.HueRotation.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      clone = fabric.util.object.clone;\n\n  if (fabric.Text) {\n    fabric.warn('fabric.Text is already defined');\n    return;\n  }\n\n  /**\n   * Text class\n   * @class fabric.Text\n   * @extends fabric.Object\n   * @return {fabric.Text} thisArg\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#text}\n   * @see {@link fabric.Text#initialize} for constructor definition\n   */\n  fabric.Text = fabric.util.createClass(fabric.Object, /** @lends fabric.Text.prototype */ {\n\n    /**\n     * Properties which when set cause object to change dimensions\n     * @type Array\n     * @private\n     */\n    _dimensionAffectingProps: [\n      'fontSize',\n      'fontWeight',\n      'fontFamily',\n      'fontStyle',\n      'lineHeight',\n      'text',\n      'charSpacing',\n      'textAlign',\n      'styles',\n    ],\n\n    /**\n     * @private\n     */\n    _reNewline: /\\r?\\n/,\n\n    /**\n     * Use this regular expression to filter for whitespaces that is not a new line.\n     * Mostly used when text is 'justify' aligned.\n     * @private\n     */\n    _reSpacesAndTabs: /[ \\t\\r]/g,\n\n    /**\n     * Use this regular expression to filter for whitespace that is not a new line.\n     * Mostly used when text is 'justify' aligned.\n     * @private\n     */\n    _reSpaceAndTab: /[ \\t\\r]/,\n\n    /**\n     * Use this regular expression to filter consecutive groups of non spaces.\n     * Mostly used when text is 'justify' aligned.\n     * @private\n     */\n    _reWords: /\\S+/g,\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type:                 'text',\n\n    /**\n     * Font size (in pixels)\n     * @type Number\n     * @default\n     */\n    fontSize:             40,\n\n    /**\n     * Font weight (e.g. bold, normal, 400, 600, 800)\n     * @type {(Number|String)}\n     * @default\n     */\n    fontWeight:           'normal',\n\n    /**\n     * Font family\n     * @type String\n     * @default\n     */\n    fontFamily:           'Times New Roman',\n\n    /**\n     * Text decoration underline.\n     * @type Boolean\n     * @default\n     */\n    underline:       false,\n\n    /**\n     * Text decoration overline.\n     * @type Boolean\n     * @default\n     */\n    overline:       false,\n\n    /**\n     * Text decoration linethrough.\n     * @type Boolean\n     * @default\n     */\n    linethrough:       false,\n\n    /**\n     * Text alignment. Possible values: \"left\", \"center\", \"right\", \"justify\",\n     * \"justify-left\", \"justify-center\" or \"justify-right\".\n     * @type String\n     * @default\n     */\n    textAlign:            'left',\n\n    /**\n     * Font style . Possible values: \"\", \"normal\", \"italic\" or \"oblique\".\n     * @type String\n     * @default\n     */\n    fontStyle:            'normal',\n\n    /**\n     * Line height\n     * @type Number\n     * @default\n     */\n    lineHeight:           1.16,\n\n    /**\n     * Superscript schema object (minimum overlap)\n     * @type {Object}\n     * @default\n     */\n    superscript: {\n      size:      0.60, // fontSize factor\n      baseline: -0.35  // baseline-shift factor (upwards)\n    },\n\n    /**\n     * Subscript schema object (minimum overlap)\n     * @type {Object}\n     * @default\n     */\n    subscript: {\n      size:      0.60, // fontSize factor\n      baseline:  0.11  // baseline-shift factor (downwards)\n    },\n\n    /**\n     * Background color of text lines\n     * @type String\n     * @default\n     */\n    textBackgroundColor:  '',\n\n    /**\n     * List of properties to consider when checking if\n     * state of an object is changed ({@link fabric.Object#hasStateChanged})\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: fabric.Object.prototype.stateProperties.concat('fontFamily',\n      'fontWeight',\n      'fontSize',\n      'text',\n      'underline',\n      'overline',\n      'linethrough',\n      'textAlign',\n      'fontStyle',\n      'lineHeight',\n      'textBackgroundColor',\n      'charSpacing',\n      'styles'),\n\n    /**\n     * List of properties to consider when checking if cache needs refresh\n     * @type Array\n     */\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('fontFamily',\n      'fontWeight',\n      'fontSize',\n      'text',\n      'underline',\n      'overline',\n      'linethrough',\n      'textAlign',\n      'fontStyle',\n      'lineHeight',\n      'textBackgroundColor',\n      'charSpacing',\n      'styles'),\n\n    /**\n     * When defined, an object is rendered via stroke and this property specifies its color.\n     * <b>Backwards incompatibility note:</b> This property was named \"strokeStyle\" until v1.1.6\n     * @type String\n     * @default\n     */\n    stroke:               null,\n\n    /**\n     * Shadow object representing shadow of this shape.\n     * <b>Backwards incompatibility note:</b> This property was named \"textShadow\" (String) until v1.2.11\n     * @type fabric.Shadow\n     * @default\n     */\n    shadow:               null,\n\n    /**\n     * @private\n     */\n    _fontSizeFraction: 0.222,\n\n    /**\n     * @private\n     */\n    offsets: {\n      underline: 0.10,\n      linethrough: -0.315,\n      overline: -0.88\n    },\n\n    /**\n     * Text Line proportion to font Size (in pixels)\n     * @type Number\n     * @default\n     */\n    _fontSizeMult:             1.13,\n\n    /**\n     * additional space between characters\n     * expressed in thousands of em unit\n     * @type Number\n     * @default\n     */\n    charSpacing:             0,\n\n    /**\n     * Object containing character styles - top-level properties -> line numbers,\n     * 2nd-level properties - charater numbers\n     * @type Object\n     * @default\n     */\n    styles: null,\n\n    /**\n     * Reference to a context to measure text char or couple of chars\n     * the cacheContext of the canvas will be used or a freshly created one if the object is not on canvas\n     * once created it will be referenced on fabric._measuringContext to avoide creating a canvas for every\n     * text object created.\n     * @type {CanvasRenderingContext2D}\n     * @default\n     */\n    _measuringContext: null,\n\n    /**\n     * Baseline shift, stlyes only, keep at 0 for the main text object\n     * @type {Number}\n     * @default\n     */\n    deltaY: 0,\n\n    /**\n     * Array of properties that define a style unit (of 'styles').\n     * @type {Array}\n     * @default\n     */\n    _styleProperties: [\n      'stroke',\n      'strokeWidth',\n      'fill',\n      'fontFamily',\n      'fontSize',\n      'fontWeight',\n      'fontStyle',\n      'underline',\n      'overline',\n      'linethrough',\n      'deltaY',\n      'textBackgroundColor',\n    ],\n\n    /**\n     * contains characters bounding boxes\n     */\n    __charBounds: [],\n\n    /**\n     * use this size when measuring text. To avoid IE11 rounding errors\n     * @type {Number}\n     * @default\n     * @readonly\n     * @private\n     */\n    CACHE_FONT_SIZE: 400,\n\n    /**\n     * contains the min text width to avoid getting 0\n     * @type {Number}\n     * @default\n     */\n    MIN_TEXT_WIDTH: 2,\n\n    /**\n     * Constructor\n     * @param {String} text Text string\n     * @param {Object} [options] Options object\n     * @return {fabric.Text} thisArg\n     */\n    initialize: function(text, options) {\n      this.styles = options ? (options.styles || { }) : { };\n      this.text = text;\n      this.__skipDimension = true;\n      this.callSuper('initialize', options);\n      this.__skipDimension = false;\n      this.initDimensions();\n      this.setCoords();\n      this.setupState({ propertySet: '_dimensionAffectingProps' });\n    },\n\n    /**\n     * Return a contex for measurement of text string.\n     * if created it gets stored for reuse\n     * @param {String} text Text string\n     * @param {Object} [options] Options object\n     * @return {fabric.Text} thisArg\n     */\n    getMeasuringContext: function() {\n      // if we did not return we have to measure something.\n      if (!fabric._measuringContext) {\n        fabric._measuringContext = this.canvas && this.canvas.contextCache ||\n          fabric.util.createCanvasElement().getContext('2d');\n      }\n      return fabric._measuringContext;\n    },\n\n    /**\n     * @private\n     * Divides text into lines of text and lines of graphemes.\n     */\n    _splitText: function() {\n      var newLines = this._splitTextIntoLines(this.text);\n      this.textLines = newLines.lines;\n      this._textLines = newLines.graphemeLines;\n      this._unwrappedTextLines = newLines._unwrappedLines;\n      this._text = newLines.graphemeText;\n      return newLines;\n    },\n\n    /**\n     * Initialize or update text dimensions.\n     * Updates this.width and this.height with the proper values.\n     * Does not return dimensions.\n     */\n    initDimensions: function() {\n      if (this.__skipDimension) {\n        return;\n      }\n      this._splitText();\n      this._clearCache();\n      this.width = this.calcTextWidth() || this.cursorWidth || this.MIN_TEXT_WIDTH;\n      if (this.textAlign.indexOf('justify') !== -1) {\n        // once text is measured we need to make space fatter to make justified text.\n        this.enlargeSpaces();\n      }\n      this.height = this.calcTextHeight();\n      this.saveState({ propertySet: '_dimensionAffectingProps' });\n    },\n\n    /**\n     * Enlarge space boxes and shift the others\n     */\n    enlargeSpaces: function() {\n      var diffSpace, currentLineWidth, numberOfSpaces, accumulatedSpace, line, charBound, spaces;\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        if (this.textAlign !== 'justify' && (i === len - 1 || this.isEndOfWrapping(i))) {\n          continue;\n        }\n        accumulatedSpace = 0;\n        line = this._textLines[i];\n        currentLineWidth = this.getLineWidth(i);\n        if (currentLineWidth < this.width && (spaces = this.textLines[i].match(this._reSpacesAndTabs))) {\n          numberOfSpaces = spaces.length;\n          diffSpace = (this.width - currentLineWidth) / numberOfSpaces;\n          for (var j = 0, jlen = line.length; j <= jlen; j++) {\n            charBound = this.__charBounds[i][j];\n            if (this._reSpaceAndTab.test(line[j])) {\n              charBound.width += diffSpace;\n              charBound.kernedWidth += diffSpace;\n              charBound.left += accumulatedSpace;\n              accumulatedSpace += diffSpace;\n            }\n            else {\n              charBound.left += accumulatedSpace;\n            }\n          }\n        }\n      }\n    },\n\n    /**\n     * Detect if the text line is ended with an hard break\n     * text and itext do not have wrapping, return false\n     * @return {Boolean}\n     */\n    isEndOfWrapping: function(lineIndex) {\n      return lineIndex === this._textLines.length - 1;\n    },\n\n    /**\n     * Detect if a line has a linebreak and so we need to account for it when moving\n     * and counting style.\n     * It return always for text and Itext.\n     * @return Number\n     */\n    missingNewlineOffset: function() {\n      return 1;\n    },\n\n    /**\n     * Returns string representation of an instance\n     * @return {String} String representation of text object\n     */\n    toString: function() {\n      return '#<fabric.Text (' + this.complexity() +\n        '): { \"text\": \"' + this.text + '\", \"fontFamily\": \"' + this.fontFamily + '\" }>';\n    },\n\n    /**\n     * Return the dimension and the zoom level needed to create a cache canvas\n     * big enough to host the object to be cached.\n     * @private\n     * @param {Object} dim.x width of object to be cached\n     * @param {Object} dim.y height of object to be cached\n     * @return {Object}.width width of canvas\n     * @return {Object}.height height of canvas\n     * @return {Object}.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @return {Object}.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     */\n    _getCacheCanvasDimensions: function() {\n      var dims = this.callSuper('_getCacheCanvasDimensions');\n      var fontSize = this.fontSize;\n      dims.width += fontSize * dims.zoomX;\n      dims.height += fontSize * dims.zoomY;\n      return dims;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      this._setTextStyles(ctx);\n      this._renderTextLinesBackground(ctx);\n      this._renderTextDecoration(ctx, 'underline');\n      this._renderText(ctx);\n      this._renderTextDecoration(ctx, 'overline');\n      this._renderTextDecoration(ctx, 'linethrough');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderText: function(ctx) {\n      if (this.paintFirst === 'stroke') {\n        this._renderTextStroke(ctx);\n        this._renderTextFill(ctx);\n      }\n      else {\n        this._renderTextFill(ctx);\n        this._renderTextStroke(ctx);\n      }\n    },\n\n    /**\n     * Set the font parameter of the context with the object properties or with charStyle\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} [charStyle] object with font style properties\n     * @param {String} [charStyle.fontFamily] Font Family\n     * @param {Number} [charStyle.fontSize] Font size in pixels. ( without px suffix )\n     * @param {String} [charStyle.fontWeight] Font weight\n     * @param {String} [charStyle.fontStyle] Font style (italic|normal)\n     */\n    _setTextStyles: function(ctx, charStyle, forMeasuring) {\n      ctx.textBaseline = 'alphabetic';\n      ctx.font = this._getFontDeclaration(charStyle, forMeasuring);\n    },\n\n    /**\n     * calculate and return the text Width measuring each line.\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @return {Number} Maximum width of fabric.Text object\n     */\n    calcTextWidth: function() {\n      var maxWidth = this.getLineWidth(0);\n\n      for (var i = 1, len = this._textLines.length; i < len; i++) {\n        var currentLineWidth = this.getLineWidth(i);\n        if (currentLineWidth > maxWidth) {\n          maxWidth = currentLineWidth;\n        }\n      }\n      return maxWidth;\n    },\n\n    /**\n     * @private\n     * @param {String} method Method name (\"fillText\" or \"strokeText\")\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {String} line Text to render\n     * @param {Number} left Left position of text\n     * @param {Number} top Top position of text\n     * @param {Number} lineIndex Index of a line in a text\n     */\n    _renderTextLine: function(method, ctx, line, left, top, lineIndex) {\n      this._renderChars(method, ctx, line, left, top, lineIndex);\n    },\n\n    /**\n     * Renders the text background for lines, taking care of style\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextLinesBackground: function(ctx) {\n      if (!this.textBackgroundColor && !this.styleHas('textBackgroundColor')) {\n        return;\n      }\n      var lineTopOffset = 0, heightOfLine,\n          lineLeftOffset, originalFill = ctx.fillStyle,\n          line, lastColor,\n          leftOffset = this._getLeftOffset(),\n          topOffset = this._getTopOffset(),\n          boxStart = 0, boxWidth = 0, charBox, currentColor;\n\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        heightOfLine = this.getHeightOfLine(i);\n        if (!this.textBackgroundColor && !this.styleHas('textBackgroundColor', i)) {\n          lineTopOffset += heightOfLine;\n          continue;\n        }\n        line = this._textLines[i];\n        lineLeftOffset = this._getLineLeftOffset(i);\n        boxWidth = 0;\n        boxStart = 0;\n        lastColor = this.getValueOfPropertyAt(i, 0, 'textBackgroundColor');\n        for (var j = 0, jlen = line.length; j < jlen; j++) {\n          charBox = this.__charBounds[i][j];\n          currentColor = this.getValueOfPropertyAt(i, j, 'textBackgroundColor');\n          if (currentColor !== lastColor) {\n            ctx.fillStyle = lastColor;\n            lastColor && ctx.fillRect(\n              leftOffset + lineLeftOffset + boxStart,\n              topOffset + lineTopOffset,\n              boxWidth,\n              heightOfLine / this.lineHeight\n            );\n            boxStart = charBox.left;\n            boxWidth = charBox.width;\n            lastColor = currentColor;\n          }\n          else {\n            boxWidth += charBox.kernedWidth;\n          }\n        }\n        if (currentColor) {\n          ctx.fillStyle = currentColor;\n          ctx.fillRect(\n            leftOffset + lineLeftOffset + boxStart,\n            topOffset + lineTopOffset,\n            boxWidth,\n            heightOfLine / this.lineHeight\n          );\n        }\n        lineTopOffset += heightOfLine;\n      }\n      ctx.fillStyle = originalFill;\n      // if there is text background color no\n      // other shadows should be casted\n      this._removeShadow(ctx);\n    },\n\n    /**\n     * @private\n     * @param {Object} decl style declaration for cache\n     * @param {String} decl.fontFamily fontFamily\n     * @param {String} decl.fontStyle fontStyle\n     * @param {String} decl.fontWeight fontWeight\n     * @return {Object} reference to cache\n     */\n    getFontCache: function(decl) {\n      var fontFamily = decl.fontFamily.toLowerCase();\n      if (!fabric.charWidthsCache[fontFamily]) {\n        fabric.charWidthsCache[fontFamily] = { };\n      }\n      var cache = fabric.charWidthsCache[fontFamily],\n          cacheProp = decl.fontStyle.toLowerCase() + '_' + (decl.fontWeight + '').toLowerCase();\n      if (!cache[cacheProp]) {\n        cache[cacheProp] = { };\n      }\n      return cache[cacheProp];\n    },\n\n    /**\n     * apply all the character style to canvas for rendering\n     * @private\n     * @param {String} _char\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {Object} [decl]\n     */\n    _applyCharStyles: function(method, ctx, lineIndex, charIndex, styleDeclaration) {\n\n      this._setFillStyles(ctx, styleDeclaration);\n      this._setStrokeStyles(ctx, styleDeclaration);\n\n      ctx.font = this._getFontDeclaration(styleDeclaration);\n    },\n\n    /**\n     * measure and return the width of a single character.\n     * possibly overridden to accommodate different measure logic or\n     * to hook some external lib for character measurement\n     * @private\n     * @param {String} _char, char to be measured\n     * @param {Object} charStyle style of char to be measured\n     * @param {String} [previousChar] previous char\n     * @param {Object} [prevCharStyle] style of previous char\n     */\n    _measureChar: function(_char, charStyle, previousChar, prevCharStyle) {\n      // first i try to return from cache\n      var fontCache = this.getFontCache(charStyle), fontDeclaration = this._getFontDeclaration(charStyle),\n          previousFontDeclaration = this._getFontDeclaration(prevCharStyle), couple = previousChar + _char,\n          stylesAreEqual = fontDeclaration === previousFontDeclaration, width, coupleWidth, previousWidth,\n          fontMultiplier = charStyle.fontSize / this.CACHE_FONT_SIZE, kernedWidth;\n\n      if (previousChar && fontCache[previousChar] !== undefined) {\n        previousWidth = fontCache[previousChar];\n      }\n      if (fontCache[_char] !== undefined) {\n        kernedWidth = width = fontCache[_char];\n      }\n      if (stylesAreEqual && fontCache[couple] !== undefined) {\n        coupleWidth = fontCache[couple];\n        kernedWidth = coupleWidth - previousWidth;\n      }\n      if (width === undefined || previousWidth === undefined || coupleWidth === undefined) {\n        var ctx = this.getMeasuringContext();\n        // send a TRUE to specify measuring font size CACHE_FONT_SIZE\n        this._setTextStyles(ctx, charStyle, true);\n      }\n      if (width === undefined) {\n        kernedWidth = width = ctx.measureText(_char).width;\n        fontCache[_char] = width;\n      }\n      if (previousWidth === undefined && stylesAreEqual && previousChar) {\n        previousWidth = ctx.measureText(previousChar).width;\n        fontCache[previousChar] = previousWidth;\n      }\n      if (stylesAreEqual && coupleWidth === undefined) {\n        // we can measure the kerning couple and subtract the width of the previous character\n        coupleWidth = ctx.measureText(couple).width;\n        fontCache[couple] = coupleWidth;\n        kernedWidth = coupleWidth - previousWidth;\n      }\n      return { width: width * fontMultiplier, kernedWidth: kernedWidth * fontMultiplier };\n    },\n\n    /**\n     * Computes height of character at given position\n     * @param {Number} line the line index number\n     * @param {Number} _char the character index number\n     * @return {Number} fontSize of the character\n     */\n    getHeightOfChar: function(line, _char) {\n      return this.getValueOfPropertyAt(line, _char, 'fontSize');\n    },\n\n    /**\n     * measure a text line measuring all characters.\n     * @param {Number} lineIndex line number\n     * @return {Number} Line width\n     */\n    measureLine: function(lineIndex) {\n      var lineInfo = this._measureLine(lineIndex);\n      if (this.charSpacing !== 0) {\n        lineInfo.width -= this._getWidthOfCharSpacing();\n      }\n      if (lineInfo.width < 0) {\n        lineInfo.width = 0;\n      }\n      return lineInfo;\n    },\n\n    /**\n     * measure every grapheme of a line, populating __charBounds\n     * @param {Number} lineIndex\n     * @return {Object} object.width total width of characters\n     * @return {Object} object.widthOfSpaces length of chars that match this._reSpacesAndTabs\n     */\n    _measureLine: function(lineIndex) {\n      var width = 0, i, grapheme, line = this._textLines[lineIndex], prevGrapheme,\n          graphemeInfo, numOfSpaces = 0, lineBounds = new Array(line.length);\n\n      this.__charBounds[lineIndex] = lineBounds;\n      for (i = 0; i < line.length; i++) {\n        grapheme = line[i];\n        graphemeInfo = this._getGraphemeBox(grapheme, lineIndex, i, prevGrapheme);\n        lineBounds[i] = graphemeInfo;\n        width += graphemeInfo.kernedWidth;\n        prevGrapheme = grapheme;\n      }\n      // this latest bound box represent the last character of the line\n      // to simplify cursor handling in interactive mode.\n      lineBounds[i] = {\n        left: graphemeInfo ? graphemeInfo.left + graphemeInfo.width : 0,\n        width: 0,\n        kernedWidth: 0,\n        height: this.fontSize\n      };\n      return { width: width, numOfSpaces: numOfSpaces };\n    },\n\n    /**\n     * Measure and return the info of a single grapheme.\n     * needs the the info of previous graphemes already filled\n     * @private\n     * @param {String} grapheme to be measured\n     * @param {Number} lineIndex index of the line where the char is\n     * @param {Number} charIndex position in the line\n     * @param {String} [prevGrapheme] character preceding the one to be measured\n     */\n    _getGraphemeBox: function(grapheme, lineIndex, charIndex, prevGrapheme, skipLeft) {\n      var style = this.getCompleteStyleDeclaration(lineIndex, charIndex),\n          prevStyle = prevGrapheme ? this.getCompleteStyleDeclaration(lineIndex, charIndex - 1) : { },\n          info = this._measureChar(grapheme, style, prevGrapheme, prevStyle),\n          kernedWidth = info.kernedWidth,\n          width = info.width, charSpacing;\n\n      if (this.charSpacing !== 0) {\n        charSpacing = this._getWidthOfCharSpacing();\n        width += charSpacing;\n        kernedWidth += charSpacing;\n      }\n\n      var box = {\n        width: width,\n        left: 0,\n        height: style.fontSize,\n        kernedWidth: kernedWidth,\n        deltaY: style.deltaY,\n      };\n      if (charIndex > 0 && !skipLeft) {\n        var previousBox = this.__charBounds[lineIndex][charIndex - 1];\n        box.left = previousBox.left + previousBox.width + info.kernedWidth - info.width;\n      }\n      return box;\n    },\n\n    /**\n     * Calculate height of line at 'lineIndex'\n     * @param {Number} lineIndex index of line to calculate\n     * @return {Number}\n     */\n    getHeightOfLine: function(lineIndex) {\n      if (this.__lineHeights[lineIndex]) {\n        return this.__lineHeights[lineIndex];\n      }\n\n      var line = this._textLines[lineIndex],\n          // char 0 is measured before the line cycle because it nneds to char\n          // emptylines\n          maxHeight = this.getHeightOfChar(lineIndex, 0);\n      for (var i = 1, len = line.length; i < len; i++) {\n        maxHeight = Math.max(this.getHeightOfChar(lineIndex, i), maxHeight);\n      }\n\n      return this.__lineHeights[lineIndex] = maxHeight * this.lineHeight * this._fontSizeMult;\n    },\n\n    /**\n     * Calculate text box height\n     */\n    calcTextHeight: function() {\n      var lineHeight, height = 0;\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        lineHeight = this.getHeightOfLine(i);\n        height += (i === len - 1 ? lineHeight / this.lineHeight : lineHeight);\n      }\n      return height;\n    },\n\n    /**\n     * @private\n     * @return {Number} Left offset\n     */\n    _getLeftOffset: function() {\n      return -this.width / 2;\n    },\n\n    /**\n     * @private\n     * @return {Number} Top offset\n     */\n    _getTopOffset: function() {\n      return -this.height / 2;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} filler fabric.Pattern or fabric.Gradient\n     * @return {Object} offset.offsetX offset for text rendering\n     * @return {Object} offset.offsetY offset for text rendering\n     */\n    _applyPatternGradientTransform: function(ctx, filler) {\n      if (!filler || !filler.toLive) {\n        return { offsetX: 0, offsetY: 0 };\n      }\n      var offsetX = -this.width / 2 + filler.offsetX || 0,\n          offsetY = -this.height / 2 + filler.offsetY || 0;\n\n      ctx.transform(1, 0, 0, 1, offsetX, offsetY);\n      return { offsetX: offsetX, offsetY: offsetY };\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {String} method Method name (\"fillText\" or \"strokeText\")\n     */\n    _renderTextCommon: function(ctx, method) {\n      ctx.save();\n      var lineHeights = 0, left = this._getLeftOffset(), top = this._getTopOffset(),\n          offsets = this._applyPatternGradientTransform(ctx, method === 'fillText' ? this.fill : this.stroke);\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        var heightOfLine = this.getHeightOfLine(i),\n            maxHeight = heightOfLine / this.lineHeight,\n            leftOffset = this._getLineLeftOffset(i);\n        this._renderTextLine(\n          method,\n          ctx,\n          this._textLines[i],\n          left + leftOffset - offsets.offsetX,\n          top + lineHeights + maxHeight - offsets.offsetY,\n          i\n        );\n        lineHeights += heightOfLine;\n      }\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextFill: function(ctx) {\n      if (!this.fill && !this.styleHas('fill')) {\n        return;\n      }\n\n      this._renderTextCommon(ctx, 'fillText');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextStroke: function(ctx) {\n      if ((!this.stroke || this.strokeWidth === 0) && this.isEmptyStyles()) {\n        return;\n      }\n\n      if (this.shadow && !this.shadow.affectStroke) {\n        this._removeShadow(ctx);\n      }\n\n      ctx.save();\n      this._setLineDash(ctx, this.strokeDashArray);\n      ctx.beginPath();\n      this._renderTextCommon(ctx, 'strokeText');\n      ctx.closePath();\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {String} method\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {String} line Content of the line\n     * @param {Number} left\n     * @param {Number} top\n     * @param {Number} lineIndex\n     * @param {Number} charOffset\n     */\n    _renderChars: function(method, ctx, line, left, top, lineIndex) {\n      // set proper line offset\n      var lineHeight = this.getHeightOfLine(lineIndex),\n          isJustify = this.textAlign.indexOf('justify') !== -1,\n          actualStyle,\n          nextStyle,\n          charsToRender = '',\n          charBox,\n          boxWidth = 0,\n          timeToRender,\n          shortCut = !isJustify && this.charSpacing === 0 && this.isEmptyStyles(lineIndex);\n\n      ctx.save();\n      top -= lineHeight * this._fontSizeFraction / this.lineHeight;\n      if (shortCut) {\n        // render all the line in one pass without checking\n        this._renderChar(method, ctx, lineIndex, 0, this.textLines[lineIndex], left, top, lineHeight);\n        ctx.restore();\n        return;\n      }\n      for (var i = 0, len = line.length - 1; i <= len; i++) {\n        timeToRender = i === len || this.charSpacing;\n        charsToRender += line[i];\n        charBox = this.__charBounds[lineIndex][i];\n        if (boxWidth === 0) {\n          left += charBox.kernedWidth - charBox.width;\n          boxWidth += charBox.width;\n        }\n        else {\n          boxWidth += charBox.kernedWidth;\n        }\n        if (isJustify && !timeToRender) {\n          if (this._reSpaceAndTab.test(line[i])) {\n            timeToRender = true;\n          }\n        }\n        if (!timeToRender) {\n          // if we have charSpacing, we render char by char\n          actualStyle = actualStyle || this.getCompleteStyleDeclaration(lineIndex, i);\n          nextStyle = this.getCompleteStyleDeclaration(lineIndex, i + 1);\n          timeToRender = this._hasStyleChanged(actualStyle, nextStyle);\n        }\n        if (timeToRender) {\n          this._renderChar(method, ctx, lineIndex, i, charsToRender, left, top, lineHeight);\n          charsToRender = '';\n          actualStyle = nextStyle;\n          left += boxWidth;\n          boxWidth = 0;\n        }\n      }\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {String} method\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {String} _char\n     * @param {Number} left Left coordinate\n     * @param {Number} top Top coordinate\n     * @param {Number} lineHeight Height of the line\n     */\n    _renderChar: function(method, ctx, lineIndex, charIndex, _char, left, top) {\n      var decl = this._getStyleDeclaration(lineIndex, charIndex),\n          fullDecl = this.getCompleteStyleDeclaration(lineIndex, charIndex),\n          shouldFill = method === 'fillText' && fullDecl.fill,\n          shouldStroke = method === 'strokeText' && fullDecl.stroke && fullDecl.strokeWidth;\n\n      if (!shouldStroke && !shouldFill) {\n        return;\n      }\n      decl && ctx.save();\n\n      this._applyCharStyles(method, ctx, lineIndex, charIndex, fullDecl);\n\n      if (decl && decl.textBackgroundColor) {\n        this._removeShadow(ctx);\n      }\n      if (decl && decl.deltaY) {\n        top += decl.deltaY;\n      }\n\n      shouldFill && ctx.fillText(_char, left, top);\n      shouldStroke && ctx.strokeText(_char, left, top);\n      decl && ctx.restore();\n    },\n\n    /**\n     * Turns the character into a 'superior figure' (i.e. 'superscript')\n     * @param {Number} start selection start\n     * @param {Number} end selection end\n     * @returns {fabric.Text} thisArg\n     * @chainable\n     */\n    setSuperscript: function(start, end) {\n      return this._setScript(start, end, this.superscript);\n    },\n\n    /**\n     * Turns the character into an 'inferior figure' (i.e. 'subscript')\n     * @param {Number} start selection start\n     * @param {Number} end selection end\n     * @returns {fabric.Text} thisArg\n     * @chainable\n     */\n    setSubscript: function(start, end) {\n      return this._setScript(start, end, this.subscript);\n    },\n\n    /**\n     * Applies 'schema' at given position\n     * @private\n     * @param {Number} start selection start\n     * @param {Number} end selection end\n     * @param {Number} schema\n     * @returns {fabric.Text} thisArg\n     * @chainable\n     */\n    _setScript: function(start, end, schema) {\n      var loc = this.get2DCursorLocation(start, true),\n          fontSize = this.getValueOfPropertyAt(loc.lineIndex, loc.charIndex, 'fontSize'),\n          dy = this.getValueOfPropertyAt(loc.lineIndex, loc.charIndex, 'deltaY'),\n          style = { fontSize: fontSize * schema.size, deltaY: dy + fontSize * schema.baseline };\n      this.setSelectionStyles(style, start, end);\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {Object} prevStyle\n     * @param {Object} thisStyle\n     */\n    _hasStyleChanged: function(prevStyle, thisStyle) {\n      return prevStyle.fill !== thisStyle.fill ||\n              prevStyle.stroke !== thisStyle.stroke ||\n              prevStyle.strokeWidth !== thisStyle.strokeWidth ||\n              prevStyle.fontSize !== thisStyle.fontSize ||\n              prevStyle.fontFamily !== thisStyle.fontFamily ||\n              prevStyle.fontWeight !== thisStyle.fontWeight ||\n              prevStyle.fontStyle !== thisStyle.fontStyle ||\n              prevStyle.deltaY !== thisStyle.deltaY;\n    },\n\n    /**\n     * @private\n     * @param {Object} prevStyle\n     * @param {Object} thisStyle\n     */\n    _hasStyleChangedForSvg: function(prevStyle, thisStyle) {\n      return this._hasStyleChanged(prevStyle, thisStyle) ||\n        prevStyle.overline !== thisStyle.overline ||\n        prevStyle.underline !== thisStyle.underline ||\n        prevStyle.linethrough !== thisStyle.linethrough;\n    },\n\n    /**\n     * @private\n     * @param {Number} lineIndex index text line\n     * @return {Number} Line left offset\n     */\n    _getLineLeftOffset: function(lineIndex) {\n      var lineWidth = this.getLineWidth(lineIndex);\n      if (this.textAlign === 'center') {\n        return (this.width - lineWidth) / 2;\n      }\n      if (this.textAlign === 'right') {\n        return this.width - lineWidth;\n      }\n      if (this.textAlign === 'justify-center' && this.isEndOfWrapping(lineIndex)) {\n        return (this.width - lineWidth) / 2;\n      }\n      if (this.textAlign === 'justify-right' && this.isEndOfWrapping(lineIndex)) {\n        return this.width - lineWidth;\n      }\n      return 0;\n    },\n\n    /**\n     * @private\n     */\n    _clearCache: function() {\n      this.__lineWidths = [];\n      this.__lineHeights = [];\n      this.__charBounds = [];\n    },\n\n    /**\n     * @private\n     */\n    _shouldClearDimensionCache: function() {\n      var shouldClear = this._forceClearCache;\n      shouldClear || (shouldClear = this.hasStateChanged('_dimensionAffectingProps'));\n      if (shouldClear) {\n        this.dirty = true;\n        this._forceClearCache = false;\n      }\n      return shouldClear;\n    },\n\n    /**\n     * Measure a single line given its index. Used to calculate the initial\n     * text bounding box. The values are calculated and stored in __lineWidths cache.\n     * @private\n     * @param {Number} lineIndex line number\n     * @return {Number} Line width\n     */\n    getLineWidth: function(lineIndex) {\n      if (this.__lineWidths[lineIndex]) {\n        return this.__lineWidths[lineIndex];\n      }\n\n      var width, line = this._textLines[lineIndex], lineInfo;\n\n      if (line === '') {\n        width = 0;\n      }\n      else {\n        lineInfo = this.measureLine(lineIndex);\n        width = lineInfo.width;\n      }\n      this.__lineWidths[lineIndex] = width;\n      return width;\n    },\n\n    _getWidthOfCharSpacing: function() {\n      if (this.charSpacing !== 0) {\n        return this.fontSize * this.charSpacing / 1000;\n      }\n      return 0;\n    },\n\n    /**\n     * Retrieves the value of property at given character position\n     * @param {Number} lineIndex the line number\n     * @param {Number} charIndex the charater number\n     * @param {String} property the property name\n     * @returns the value of 'property'\n     */\n    getValueOfPropertyAt: function(lineIndex, charIndex, property) {\n      var charStyle = this._getStyleDeclaration(lineIndex, charIndex);\n      if (charStyle && typeof charStyle[property] !== 'undefined') {\n        return charStyle[property];\n      }\n      return this[property];\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextDecoration: function(ctx, type) {\n      if (!this[type] && !this.styleHas(type)) {\n        return;\n      }\n      var heightOfLine, size, _size,\n          lineLeftOffset, dy, _dy,\n          line, lastDecoration,\n          leftOffset = this._getLeftOffset(),\n          topOffset = this._getTopOffset(), top,\n          boxStart, boxWidth, charBox, currentDecoration,\n          maxHeight, currentFill, lastFill,\n          charSpacing = this._getWidthOfCharSpacing();\n\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        heightOfLine = this.getHeightOfLine(i);\n        if (!this[type] && !this.styleHas(type, i)) {\n          topOffset += heightOfLine;\n          continue;\n        }\n        line = this._textLines[i];\n        maxHeight = heightOfLine / this.lineHeight;\n        lineLeftOffset = this._getLineLeftOffset(i);\n        boxStart = 0;\n        boxWidth = 0;\n        lastDecoration = this.getValueOfPropertyAt(i, 0, type);\n        lastFill = this.getValueOfPropertyAt(i, 0, 'fill');\n        top = topOffset + maxHeight * (1 - this._fontSizeFraction);\n        size = this.getHeightOfChar(i, 0);\n        dy = this.getValueOfPropertyAt(i, 0, 'deltaY');\n        for (var j = 0, jlen = line.length; j < jlen; j++) {\n          charBox = this.__charBounds[i][j];\n          currentDecoration = this.getValueOfPropertyAt(i, j, type);\n          currentFill = this.getValueOfPropertyAt(i, j, 'fill');\n          _size = this.getHeightOfChar(i, j);\n          _dy = this.getValueOfPropertyAt(i, j, 'deltaY');\n          if ((currentDecoration !== lastDecoration || currentFill !== lastFill || _size !== size || _dy !== dy) &&\n              boxWidth > 0) {\n            ctx.fillStyle = lastFill;\n            lastDecoration && lastFill && ctx.fillRect(\n              leftOffset + lineLeftOffset + boxStart,\n              top + this.offsets[type] * size + dy,\n              boxWidth,\n              this.fontSize / 15\n            );\n            boxStart = charBox.left;\n            boxWidth = charBox.width;\n            lastDecoration = currentDecoration;\n            lastFill = currentFill;\n            size = _size;\n            dy = _dy;\n          }\n          else {\n            boxWidth += charBox.kernedWidth;\n          }\n        }\n        ctx.fillStyle = currentFill;\n        currentDecoration && currentFill && ctx.fillRect(\n          leftOffset + lineLeftOffset + boxStart,\n          top + this.offsets[type] * size + dy,\n          boxWidth - charSpacing,\n          this.fontSize / 15\n        );\n        topOffset += heightOfLine;\n      }\n      // if there is text background color no\n      // other shadows should be casted\n      this._removeShadow(ctx);\n    },\n\n    /**\n     * return font declaration string for canvas context\n     * @param {Object} [styleObject] object\n     * @returns {String} font declaration formatted for canvas context.\n     */\n    _getFontDeclaration: function(styleObject, forMeasuring) {\n      var style = styleObject || this, family = this.fontFamily,\n          fontIsGeneric = fabric.Text.genericFonts.indexOf(family.toLowerCase()) > -1;\n      var fontFamily = family === undefined ||\n      family.indexOf('\\'') > -1 || family.indexOf(',') > -1 ||\n      family.indexOf('\"') > -1 || fontIsGeneric\n        ? style.fontFamily : '\"' + style.fontFamily + '\"';\n      return [\n        // node-canvas needs \"weight style\", while browsers need \"style weight\"\n        // verify if this can be fixed in JSDOM\n        (fabric.isLikelyNode ? style.fontWeight : style.fontStyle),\n        (fabric.isLikelyNode ? style.fontStyle : style.fontWeight),\n        forMeasuring ? this.CACHE_FONT_SIZE + 'px' : style.fontSize + 'px',\n        fontFamily\n      ].join(' ');\n    },\n\n    /**\n     * Renders text instance on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    render: function(ctx) {\n      // do not render if object is not visible\n      if (!this.visible) {\n        return;\n      }\n      if (this.canvas && this.canvas.skipOffscreen && !this.group && !this.isOnScreen()) {\n        return;\n      }\n      if (this._shouldClearDimensionCache()) {\n        this.initDimensions();\n      }\n      this.callSuper('render', ctx);\n    },\n\n    /**\n     * Returns the text as an array of lines.\n     * @param {String} text text to split\n     * @returns {Array} Lines in the text\n     */\n    _splitTextIntoLines: function(text) {\n      var lines = text.split(this._reNewline),\n          newLines = new Array(lines.length),\n          newLine = ['\\n'],\n          newText = [];\n      for (var i = 0; i < lines.length; i++) {\n        newLines[i] = fabric.util.string.graphemeSplit(lines[i]);\n        newText = newText.concat(newLines[i], newLine);\n      }\n      newText.pop();\n      return { _unwrappedLines: newLines, lines: lines, graphemeText: newText, graphemeLines: newLines };\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var additionalProperties = [\n        'text',\n        'fontSize',\n        'fontWeight',\n        'fontFamily',\n        'fontStyle',\n        'lineHeight',\n        'underline',\n        'overline',\n        'linethrough',\n        'textAlign',\n        'textBackgroundColor',\n        'charSpacing',\n      ].concat(propertiesToInclude);\n      var obj = this.callSuper('toObject', additionalProperties);\n      obj.styles = clone(this.styles, true);\n      return obj;\n    },\n\n    /**\n     * Sets property to a given value. When changing position/dimension -related properties (left, top, scale, angle, etc.) `set` does not update position of object's borders/controls. If you need to update those, call `setCoords()`.\n     * @param {String|Object} key Property name or object (if object, iterate over the object properties)\n     * @param {Object|Function} value Property value (if function, the value is passed into it and its return value is used as a new one)\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    set: function(key, value) {\n      this.callSuper('set', key, value);\n      var needsDims = false;\n      if (typeof key === 'object') {\n        for (var _key in key) {\n          needsDims = needsDims || this._dimensionAffectingProps.indexOf(_key) !== -1;\n        }\n      }\n      else {\n        needsDims = this._dimensionAffectingProps.indexOf(key) !== -1;\n      }\n      if (needsDims) {\n        this.initDimensions();\n        this.setCoords();\n      }\n      return this;\n    },\n\n    /**\n     * Returns complexity of an instance\n     * @return {Number} complexity\n     */\n    complexity: function() {\n      return 1;\n    }\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Text.fromElement})\n   * @static\n   * @memberOf fabric.Text\n   * @see: http://www.w3.org/TR/SVG/text.html#TextElement\n   */\n  fabric.Text.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat(\n    'x y dx dy font-family font-style font-weight font-size letter-spacing text-decoration text-anchor'.split(' '));\n\n  /**\n   * Default SVG font size\n   * @static\n   * @memberOf fabric.Text\n   */\n  fabric.Text.DEFAULT_SVG_FONT_SIZE = 16;\n\n  /**\n   * Returns fabric.Text instance from an SVG element (<b>not yet implemented</b>)\n   * @static\n   * @memberOf fabric.Text\n   * @param {SVGElement} element Element to parse\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Text.fromElement = function(element, callback, options) {\n    if (!element) {\n      return callback(null);\n    }\n\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Text.ATTRIBUTE_NAMES),\n        parsedAnchor = parsedAttributes.textAnchor || 'left';\n    options = fabric.util.object.extend((options ? clone(options) : { }), parsedAttributes);\n\n    options.top = options.top || 0;\n    options.left = options.left || 0;\n    if (parsedAttributes.textDecoration) {\n      var textDecoration = parsedAttributes.textDecoration;\n      if (textDecoration.indexOf('underline') !== -1) {\n        options.underline = true;\n      }\n      if (textDecoration.indexOf('overline') !== -1) {\n        options.overline = true;\n      }\n      if (textDecoration.indexOf('line-through') !== -1) {\n        options.linethrough = true;\n      }\n      delete options.textDecoration;\n    }\n    if ('dx' in parsedAttributes) {\n      options.left += parsedAttributes.dx;\n    }\n    if ('dy' in parsedAttributes) {\n      options.top += parsedAttributes.dy;\n    }\n    if (!('fontSize' in options)) {\n      options.fontSize = fabric.Text.DEFAULT_SVG_FONT_SIZE;\n    }\n\n    var textContent = '';\n\n    // The XML is not properly parsed in IE9 so a workaround to get\n    // textContent is through firstChild.data. Another workaround would be\n    // to convert XML loaded from a file to be converted using DOMParser (same way loadSVGFromString() does)\n    if (!('textContent' in element)) {\n      if ('firstChild' in element && element.firstChild !== null) {\n        if ('data' in element.firstChild && element.firstChild.data !== null) {\n          textContent = element.firstChild.data;\n        }\n      }\n    }\n    else {\n      textContent = element.textContent;\n    }\n\n    textContent = textContent.replace(/^\\s+|\\s+$|\\n+/g, '').replace(/\\s+/g, ' ');\n    var originalStrokeWidth = options.strokeWidth;\n    options.strokeWidth = 0;\n\n    var text = new fabric.Text(textContent, options),\n        textHeightScaleFactor = text.getScaledHeight() / text.height,\n        lineHeightDiff = (text.height + text.strokeWidth) * text.lineHeight - text.height,\n        scaledDiff = lineHeightDiff * textHeightScaleFactor,\n        textHeight = text.getScaledHeight() + scaledDiff,\n        offX = 0;\n    /*\n      Adjust positioning:\n        x/y attributes in SVG correspond to the bottom-left corner of text bounding box\n        fabric output by default at top, left.\n    */\n    if (parsedAnchor === 'center') {\n      offX = text.getScaledWidth() / 2;\n    }\n    if (parsedAnchor === 'right') {\n      offX = text.getScaledWidth();\n    }\n    text.set({\n      left: text.left - offX,\n      top: text.top - (textHeight - text.fontSize * (0.07 + text._fontSizeFraction)) / text.lineHeight,\n      strokeWidth: typeof originalStrokeWidth !== 'undefined' ? originalStrokeWidth : 1,\n    });\n    callback(text);\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Text instance from an object representation\n   * @static\n   * @memberOf fabric.Text\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Text instance is created\n   */\n  fabric.Text.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Text', object, callback, 'text');\n  };\n\n  fabric.Text.genericFonts = ['sans-serif', 'serif', 'cursive', 'fantasy', 'monospace'];\n\n  fabric.util.createAccessors && fabric.util.createAccessors(fabric.Text);\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n  fabric.util.object.extend(fabric.Text.prototype, /** @lends fabric.Text.prototype */ {\n    /**\n     * Returns true if object has no styling or no styling in a line\n     * @param {Number} lineIndex , lineIndex is on wrapped lines.\n     * @return {Boolean}\n     */\n    isEmptyStyles: function(lineIndex) {\n      if (!this.styles) {\n        return true;\n      }\n      if (typeof lineIndex !== 'undefined' && !this.styles[lineIndex]) {\n        return true;\n      }\n      var obj = typeof lineIndex === 'undefined' ? this.styles : { line: this.styles[lineIndex] };\n      for (var p1 in obj) {\n        for (var p2 in obj[p1]) {\n          // eslint-disable-next-line no-unused-vars\n          for (var p3 in obj[p1][p2]) {\n            return false;\n          }\n        }\n      }\n      return true;\n    },\n\n    /**\n     * Returns true if object has a style property or has it ina specified line\n     * This function is used to detect if a text will use a particular property or not.\n     * @param {String} property to check for\n     * @param {Number} lineIndex to check the style on\n     * @return {Boolean}\n     */\n    styleHas: function(property, lineIndex) {\n      if (!this.styles || !property || property === '') {\n        return false;\n      }\n      if (typeof lineIndex !== 'undefined' && !this.styles[lineIndex]) {\n        return false;\n      }\n      var obj = typeof lineIndex === 'undefined' ? this.styles : { 0: this.styles[lineIndex] };\n      // eslint-disable-next-line\n      for (var p1 in obj) {\n        // eslint-disable-next-line\n        for (var p2 in obj[p1]) {\n          if (typeof obj[p1][p2][property] !== 'undefined') {\n            return true;\n          }\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Check if characters in a text have a value for a property\n     * whose value matches the textbox's value for that property.  If so,\n     * the character-level property is deleted.  If the character\n     * has no other properties, then it is also deleted.  Finally,\n     * if the line containing that character has no other characters\n     * then it also is deleted.\n     *\n     * @param {string} property The property to compare between characters and text.\n     */\n    cleanStyle: function(property) {\n      if (!this.styles || !property || property === '') {\n        return false;\n      }\n      var obj = this.styles, stylesCount = 0, letterCount, stylePropertyValue,\n          allStyleObjectPropertiesMatch = true, graphemeCount = 0, styleObject;\n      // eslint-disable-next-line\n      for (var p1 in obj) {\n        letterCount = 0;\n        // eslint-disable-next-line\n        for (var p2 in obj[p1]) {\n          var styleObject = obj[p1][p2],\n              stylePropertyHasBeenSet = styleObject.hasOwnProperty(property);\n\n          stylesCount++;\n\n          if (stylePropertyHasBeenSet) {\n            if (!stylePropertyValue) {\n              stylePropertyValue = styleObject[property];\n            }\n            else if (styleObject[property] !== stylePropertyValue) {\n              allStyleObjectPropertiesMatch = false;\n            }\n\n            if (styleObject[property] === this[property]) {\n              delete styleObject[property];\n            }\n          }\n          else {\n            allStyleObjectPropertiesMatch = false;\n          }\n\n          if (Object.keys(styleObject).length !== 0) {\n            letterCount++;\n          }\n          else {\n            delete obj[p1][p2];\n          }\n        }\n\n        if (letterCount === 0) {\n          delete obj[p1];\n        }\n      }\n      // if every grapheme has the same style set then\n      // delete those styles and set it on the parent\n      for (var i = 0; i < this._textLines.length; i++) {\n        graphemeCount += this._textLines[i].length;\n      }\n      if (allStyleObjectPropertiesMatch && stylesCount === graphemeCount) {\n        this[property] = stylePropertyValue;\n        this.removeStyle(property);\n      }\n    },\n\n    /**\n     * Remove a style property or properties from all individual character styles\n     * in a text object.  Deletes the character style object if it contains no other style\n     * props.  Deletes a line style object if it contains no other character styles.\n     *\n     * @param {String} props The property to remove from character styles.\n     */\n    removeStyle: function(property) {\n      if (!this.styles || !property || property === '') {\n        return;\n      }\n      var obj = this.styles, line, lineNum, charNum;\n      for (lineNum in obj) {\n        line = obj[lineNum];\n        for (charNum in line) {\n          delete line[charNum][property];\n          if (Object.keys(line[charNum]).length === 0) {\n            delete line[charNum];\n          }\n        }\n        if (Object.keys(line).length === 0) {\n          delete obj[lineNum];\n        }\n      }\n    },\n\n    /**\n     * @private\n     */\n    _extendStyles: function(index, styles) {\n      var loc = this.get2DCursorLocation(index);\n\n      if (!this._getLineStyle(loc.lineIndex)) {\n        this._setLineStyle(loc.lineIndex);\n      }\n\n      if (!this._getStyleDeclaration(loc.lineIndex, loc.charIndex)) {\n        this._setStyleDeclaration(loc.lineIndex, loc.charIndex, {});\n      }\n\n      fabric.util.object.extend(this._getStyleDeclaration(loc.lineIndex, loc.charIndex), styles);\n    },\n\n    /**\n     * Returns 2d representation (lineIndex and charIndex) of cursor (or selection start)\n     * @param {Number} [selectionStart] Optional index. When not given, current selectionStart is used.\n     * @param {Boolean} [skipWrapping] consider the location for unwrapped lines. usefull to manage styles.\n     */\n    get2DCursorLocation: function(selectionStart, skipWrapping) {\n      if (typeof selectionStart === 'undefined') {\n        selectionStart = this.selectionStart;\n      }\n      var lines = skipWrapping ? this._unwrappedTextLines : this._textLines,\n          len = lines.length;\n      for (var i = 0; i < len; i++) {\n        if (selectionStart <= lines[i].length) {\n          return {\n            lineIndex: i,\n            charIndex: selectionStart\n          };\n        }\n        selectionStart -= lines[i].length + this.missingNewlineOffset(i);\n      }\n      return {\n        lineIndex: i - 1,\n        charIndex: lines[i - 1].length < selectionStart ? lines[i - 1].length : selectionStart\n      };\n    },\n\n    /**\n     * Gets style of a current selection/cursor (at the start position)\n     * if startIndex or endIndex are not provided, slectionStart or selectionEnd will be used.\n     * @param {Number} [startIndex] Start index to get styles at\n     * @param {Number} [endIndex] End index to get styles at, if not specified selectionEnd or startIndex + 1\n     * @param {Boolean} [complete] get full style or not\n     * @return {Array} styles an array with one, zero or more Style objects\n     */\n    getSelectionStyles: function(startIndex, endIndex, complete) {\n      if (typeof startIndex === 'undefined') {\n        startIndex = this.selectionStart || 0;\n      }\n      if (typeof endIndex === 'undefined') {\n        endIndex = this.selectionEnd || startIndex;\n      }\n      var styles = [];\n      for (var i = startIndex; i < endIndex; i++) {\n        styles.push(this.getStyleAtPosition(i, complete));\n      }\n      return styles;\n    },\n\n    /**\n     * Gets style of a current selection/cursor position\n     * @param {Number} position  to get styles at\n     * @param {Boolean} [complete] full style if true\n     * @return {Object} style Style object at a specified index\n     * @private\n     */\n    getStyleAtPosition: function(position, complete) {\n      var loc = this.get2DCursorLocation(position),\n          style = complete ? this.getCompleteStyleDeclaration(loc.lineIndex, loc.charIndex) :\n            this._getStyleDeclaration(loc.lineIndex, loc.charIndex);\n      return style || {};\n    },\n\n    /**\n     * Sets style of a current selection, if no selection exist, do not set anything.\n     * @param {Object} [styles] Styles object\n     * @param {Number} [startIndex] Start index to get styles at\n     * @param {Number} [endIndex] End index to get styles at, if not specified selectionEnd or startIndex + 1\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    setSelectionStyles: function(styles, startIndex, endIndex) {\n      if (typeof startIndex === 'undefined') {\n        startIndex = this.selectionStart || 0;\n      }\n      if (typeof endIndex === 'undefined') {\n        endIndex = this.selectionEnd || startIndex;\n      }\n      for (var i = startIndex; i < endIndex; i++) {\n        this._extendStyles(i, styles);\n      }\n      /* not included in _extendStyles to avoid clearing cache more than once */\n      this._forceClearCache = true;\n      return this;\n    },\n\n    /**\n     * get the reference, not a clone, of the style object for a given character\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @return {Object} style object\n     */\n    _getStyleDeclaration: function(lineIndex, charIndex) {\n      var lineStyle = this.styles && this.styles[lineIndex];\n      if (!lineStyle) {\n        return null;\n      }\n      return lineStyle[charIndex];\n    },\n\n    /**\n     * return a new object that contains all the style property for a character\n     * the object returned is newly created\n     * @param {Number} lineIndex of the line where the character is\n     * @param {Number} charIndex position of the character on the line\n     * @return {Object} style object\n     */\n    getCompleteStyleDeclaration: function(lineIndex, charIndex) {\n      var style = this._getStyleDeclaration(lineIndex, charIndex) || { },\n          styleObject = { }, prop;\n      for (var i = 0; i < this._styleProperties.length; i++) {\n        prop = this._styleProperties[i];\n        styleObject[prop] = typeof style[prop] === 'undefined' ? this[prop] : style[prop];\n      }\n      return styleObject;\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {Object} style\n     * @private\n     */\n    _setStyleDeclaration: function(lineIndex, charIndex, style) {\n      this.styles[lineIndex][charIndex] = style;\n    },\n\n    /**\n     *\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @private\n     */\n    _deleteStyleDeclaration: function(lineIndex, charIndex) {\n      delete this.styles[lineIndex][charIndex];\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @return {Boolean} if the line exists or not\n     * @private\n     */\n    _getLineStyle: function(lineIndex) {\n      return !!this.styles[lineIndex];\n    },\n\n    /**\n     * Set the line style to an empty object so that is initialized\n     * @param {Number} lineIndex\n     * @private\n     */\n    _setLineStyle: function(lineIndex) {\n      this.styles[lineIndex] = {};\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @private\n     */\n    _deleteLineStyle: function(lineIndex) {\n      delete this.styles[lineIndex];\n    }\n  });\n})();\n\n\n(function() {\n\n  function parseDecoration(object) {\n    if (object.textDecoration) {\n      object.textDecoration.indexOf('underline') > -1 && (object.underline = true);\n      object.textDecoration.indexOf('line-through') > -1 && (object.linethrough = true);\n      object.textDecoration.indexOf('overline') > -1 && (object.overline = true);\n      delete object.textDecoration;\n    }\n  }\n\n  /**\n   * IText class (introduced in <b>v1.4</b>) Events are also fired with \"text:\"\n   * prefix when observing canvas.\n   * @class fabric.IText\n   * @extends fabric.Text\n   * @mixes fabric.Observable\n   *\n   * @fires changed\n   * @fires selection:changed\n   * @fires editing:entered\n   * @fires editing:exited\n   *\n   * @return {fabric.IText} thisArg\n   * @see {@link fabric.IText#initialize} for constructor definition\n   *\n   * <p>Supported key combinations:</p>\n   * <pre>\n   *   Move cursor:                    left, right, up, down\n   *   Select character:               shift + left, shift + right\n   *   Select text vertically:         shift + up, shift + down\n   *   Move cursor by word:            alt + left, alt + right\n   *   Select words:                   shift + alt + left, shift + alt + right\n   *   Move cursor to line start/end:  cmd + left, cmd + right or home, end\n   *   Select till start/end of line:  cmd + shift + left, cmd + shift + right or shift + home, shift + end\n   *   Jump to start/end of text:      cmd + up, cmd + down\n   *   Select till start/end of text:  cmd + shift + up, cmd + shift + down or shift + pgUp, shift + pgDown\n   *   Delete character:               backspace\n   *   Delete word:                    alt + backspace\n   *   Delete line:                    cmd + backspace\n   *   Forward delete:                 delete\n   *   Copy text:                      ctrl/cmd + c\n   *   Paste text:                     ctrl/cmd + v\n   *   Cut text:                       ctrl/cmd + x\n   *   Select entire text:             ctrl/cmd + a\n   *   Quit editing                    tab or esc\n   * </pre>\n   *\n   * <p>Supported mouse/touch combination</p>\n   * <pre>\n   *   Position cursor:                click/touch\n   *   Create selection:               click/touch & drag\n   *   Create selection:               click & shift + click\n   *   Select word:                    double click\n   *   Select line:                    triple click\n   * </pre>\n   */\n  fabric.IText = fabric.util.createClass(fabric.Text, fabric.Observable, /** @lends fabric.IText.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'i-text',\n\n    /**\n     * Index where text selection starts (or where cursor is when there is no selection)\n     * @type Number\n     * @default\n     */\n    selectionStart: 0,\n\n    /**\n     * Index where text selection ends\n     * @type Number\n     * @default\n     */\n    selectionEnd: 0,\n\n    /**\n     * Color of text selection\n     * @type String\n     * @default\n     */\n    selectionColor: 'rgba(17,119,255,0.3)',\n\n    /**\n     * Indicates whether text is in editing mode\n     * @type Boolean\n     * @default\n     */\n    isEditing: false,\n\n    /**\n     * Indicates whether a text can be edited\n     * @type Boolean\n     * @default\n     */\n    editable: true,\n\n    /**\n     * Border color of text object while it's in editing mode\n     * @type String\n     * @default\n     */\n    editingBorderColor: 'rgba(102,153,255,0.25)',\n\n    /**\n     * Width of cursor (in px)\n     * @type Number\n     * @default\n     */\n    cursorWidth: 2,\n\n    /**\n     * Color of default cursor (when not overwritten by character style)\n     * @type String\n     * @default\n     */\n    cursorColor: '#333',\n\n    /**\n     * Delay between cursor blink (in ms)\n     * @type Number\n     * @default\n     */\n    cursorDelay: 1000,\n\n    /**\n     * Duration of cursor fadein (in ms)\n     * @type Number\n     * @default\n     */\n    cursorDuration: 600,\n\n    /**\n     * Indicates whether internal text char widths can be cached\n     * @type Boolean\n     * @default\n     */\n    caching: true,\n\n    /**\n     * @private\n     */\n    _reSpace: /\\s|\\n/,\n\n    /**\n     * @private\n     */\n    _currentCursorOpacity: 0,\n\n    /**\n     * @private\n     */\n    _selectionDirection: null,\n\n    /**\n     * @private\n     */\n    _abortCursorAnimation: false,\n\n    /**\n     * @private\n     */\n    __widthOfSpace: [],\n\n    /**\n     * Helps determining when the text is in composition, so that the cursor\n     * rendering is altered.\n     */\n    inCompositionMode: false,\n\n    /**\n     * Constructor\n     * @param {String} text Text string\n     * @param {Object} [options] Options object\n     * @return {fabric.IText} thisArg\n     */\n    initialize: function(text, options) {\n      this.callSuper('initialize', text, options);\n      this.initBehavior();\n    },\n\n    /**\n     * Sets selection start (left boundary of a selection)\n     * @param {Number} index Index to set selection start to\n     */\n    setSelectionStart: function(index) {\n      index = Math.max(index, 0);\n      this._updateAndFire('selectionStart', index);\n    },\n\n    /**\n     * Sets selection end (right boundary of a selection)\n     * @param {Number} index Index to set selection end to\n     */\n    setSelectionEnd: function(index) {\n      index = Math.min(index, this.text.length);\n      this._updateAndFire('selectionEnd', index);\n    },\n\n    /**\n     * @private\n     * @param {String} property 'selectionStart' or 'selectionEnd'\n     * @param {Number} index new position of property\n     */\n    _updateAndFire: function(property, index) {\n      if (this[property] !== index) {\n        this._fireSelectionChanged();\n        this[property] = index;\n      }\n      this._updateTextarea();\n    },\n\n    /**\n     * Fires the even of selection changed\n     * @private\n     */\n    _fireSelectionChanged: function() {\n      this.fire('selection:changed');\n      this.canvas && this.canvas.fire('text:selection:changed', { target: this });\n    },\n\n    /**\n     * Initialize text dimensions. Render all text on given context\n     * or on a offscreen canvas to get the text width with measureText.\n     * Updates this.width and this.height with the proper values.\n     * Does not return dimensions.\n     * @private\n     */\n    initDimensions: function() {\n      this.isEditing && this.initDelayedCursor();\n      this.clearContextTop();\n      this.callSuper('initDimensions');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    render: function(ctx) {\n      this.clearContextTop();\n      this.callSuper('render', ctx);\n      // clear the cursorOffsetCache, so we ensure to calculate once per renderCursor\n      // the correct position but not at every cursor animation.\n      this.cursorOffsetCache = { };\n      this.renderCursorOrSelection();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      this.callSuper('_render', ctx);\n    },\n\n    /**\n     * Prepare and clean the contextTop\n     */\n    clearContextTop: function(skipRestore) {\n      if (!this.isEditing || !this.canvas || !this.canvas.contextTop) {\n        return;\n      }\n      var ctx = this.canvas.contextTop, v = this.canvas.viewportTransform;\n      ctx.save();\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      this.transform(ctx);\n      this.transformMatrix && ctx.transform.apply(ctx, this.transformMatrix);\n      this._clearTextArea(ctx);\n      skipRestore || ctx.restore();\n    },\n\n    /**\n     * Renders cursor or selection (depending on what exists)\n     * it does on the contextTop. If contextTop is not available, do nothing.\n     */\n    renderCursorOrSelection: function() {\n      if (!this.isEditing || !this.canvas || !this.canvas.contextTop) {\n        return;\n      }\n      var boundaries = this._getCursorBoundaries(),\n          ctx = this.canvas.contextTop;\n      this.clearContextTop(true);\n      if (this.selectionStart === this.selectionEnd) {\n        this.renderCursor(boundaries, ctx);\n      }\n      else {\n        this.renderSelection(boundaries, ctx);\n      }\n      ctx.restore();\n    },\n\n    _clearTextArea: function(ctx) {\n      // we add 4 pixel, to be sure to do not leave any pixel out\n      var width = this.width + 4, height = this.height + 4;\n      ctx.clearRect(-width / 2, -height / 2, width, height);\n    },\n\n    /**\n     * Returns cursor boundaries (left, top, leftOffset, topOffset)\n     * @private\n     * @param {Array} chars Array of characters\n     * @param {String} typeOfBoundaries\n     */\n    _getCursorBoundaries: function(position) {\n\n      // left/top are left/top of entire text box\n      // leftOffset/topOffset are offset from that left/top point of a text box\n\n      if (typeof position === 'undefined') {\n        position = this.selectionStart;\n      }\n\n      var left = this._getLeftOffset(),\n          top = this._getTopOffset(),\n          offsets = this._getCursorBoundariesOffsets(position);\n\n      return {\n        left: left,\n        top: top,\n        leftOffset: offsets.left,\n        topOffset: offsets.top\n      };\n    },\n\n    /**\n     * @private\n     */\n    _getCursorBoundariesOffsets: function(position) {\n      if (this.cursorOffsetCache && 'top' in this.cursorOffsetCache) {\n        return this.cursorOffsetCache;\n      }\n      var lineLeftOffset,\n          lineIndex,\n          charIndex,\n          topOffset = 0,\n          leftOffset = 0,\n          boundaries,\n          cursorPosition = this.get2DCursorLocation(position);\n      charIndex = cursorPosition.charIndex;\n      lineIndex = cursorPosition.lineIndex;\n      for (var i = 0; i < lineIndex; i++) {\n        topOffset += this.getHeightOfLine(i);\n      }\n      lineLeftOffset = this._getLineLeftOffset(lineIndex);\n      var bound = this.__charBounds[lineIndex][charIndex];\n      bound && (leftOffset = bound.left);\n      if (this.charSpacing !== 0 && charIndex === this._textLines[lineIndex].length) {\n        leftOffset -= this._getWidthOfCharSpacing();\n      }\n      boundaries = {\n        top: topOffset,\n        left: lineLeftOffset + (leftOffset > 0 ? leftOffset : 0),\n      };\n      this.cursorOffsetCache = boundaries;\n      return this.cursorOffsetCache;\n    },\n\n    /**\n     * Renders cursor\n     * @param {Object} boundaries\n     * @param {CanvasRenderingContext2D} ctx transformed context to draw on\n     */\n    renderCursor: function(boundaries, ctx) {\n      var cursorLocation = this.get2DCursorLocation(),\n          lineIndex = cursorLocation.lineIndex,\n          charIndex = cursorLocation.charIndex > 0 ? cursorLocation.charIndex - 1 : 0,\n          charHeight = this.getValueOfPropertyAt(lineIndex, charIndex, 'fontSize'),\n          multiplier = this.scaleX * this.canvas.getZoom(),\n          cursorWidth = this.cursorWidth / multiplier,\n          topOffset = boundaries.topOffset,\n          dy = this.getValueOfPropertyAt(lineIndex, charIndex, 'deltaY');\n\n      topOffset += (1 - this._fontSizeFraction) * this.getHeightOfLine(lineIndex) / this.lineHeight\n        - charHeight * (1 - this._fontSizeFraction);\n\n      if (this.inCompositionMode) {\n        this.renderSelection(boundaries, ctx);\n      }\n\n      ctx.fillStyle = this.getValueOfPropertyAt(lineIndex, charIndex, 'fill');\n      ctx.globalAlpha = this.__isMousedown ? 1 : this._currentCursorOpacity;\n      ctx.fillRect(\n        boundaries.left + boundaries.leftOffset - cursorWidth / 2,\n        topOffset + boundaries.top + dy,\n        cursorWidth,\n        charHeight);\n    },\n\n    /**\n     * Renders text selection\n     * @param {Object} boundaries Object with left/top/leftOffset/topOffset\n     * @param {CanvasRenderingContext2D} ctx transformed context to draw on\n     */\n    renderSelection: function(boundaries, ctx) {\n\n      var selectionStart = this.inCompositionMode ? this.hiddenTextarea.selectionStart : this.selectionStart,\n          selectionEnd = this.inCompositionMode ? this.hiddenTextarea.selectionEnd : this.selectionEnd,\n          isJustify = this.textAlign.indexOf('justify') !== -1,\n          start = this.get2DCursorLocation(selectionStart),\n          end = this.get2DCursorLocation(selectionEnd),\n          startLine = start.lineIndex,\n          endLine = end.lineIndex,\n          startChar = start.charIndex < 0 ? 0 : start.charIndex,\n          endChar = end.charIndex < 0 ? 0 : end.charIndex;\n\n      for (var i = startLine; i <= endLine; i++) {\n        var lineOffset = this._getLineLeftOffset(i) || 0,\n            lineHeight = this.getHeightOfLine(i),\n            realLineHeight = 0, boxStart = 0, boxEnd = 0;\n\n        if (i === startLine) {\n          boxStart = this.__charBounds[startLine][startChar].left;\n        }\n        if (i >= startLine && i < endLine) {\n          boxEnd = isJustify && !this.isEndOfWrapping(i) ? this.width : this.getLineWidth(i) || 5; // WTF is this 5?\n        }\n        else if (i === endLine) {\n          if (endChar === 0) {\n            boxEnd = this.__charBounds[endLine][endChar].left;\n          }\n          else {\n            var charSpacing = this._getWidthOfCharSpacing();\n            boxEnd = this.__charBounds[endLine][endChar - 1].left\n              + this.__charBounds[endLine][endChar - 1].width - charSpacing;\n          }\n        }\n        realLineHeight = lineHeight;\n        if (this.lineHeight < 1 || (i === endLine && this.lineHeight > 1)) {\n          lineHeight /= this.lineHeight;\n        }\n        if (this.inCompositionMode) {\n          ctx.fillStyle = this.compositionColor || 'black';\n          ctx.fillRect(\n            boundaries.left + lineOffset + boxStart,\n            boundaries.top + boundaries.topOffset + lineHeight,\n            boxEnd - boxStart,\n            1);\n        }\n        else {\n          ctx.fillStyle = this.selectionColor;\n          ctx.fillRect(\n            boundaries.left + lineOffset + boxStart,\n            boundaries.top + boundaries.topOffset,\n            boxEnd - boxStart,\n            lineHeight);\n        }\n\n\n        boundaries.topOffset += realLineHeight;\n      }\n    },\n\n    /**\n     * High level function to know the height of the cursor.\n     * the currentChar is the one that precedes the cursor\n     * Returns fontSize of char at the current cursor\n     * Unused from the library, is for the end user\n     * @return {Number} Character font size\n     */\n    getCurrentCharFontSize: function() {\n      var cp = this._getCurrentCharIndex();\n      return this.getValueOfPropertyAt(cp.l, cp.c, 'fontSize');\n    },\n\n    /**\n     * High level function to know the color of the cursor.\n     * the currentChar is the one that precedes the cursor\n     * Returns color (fill) of char at the current cursor\n     * Unused from the library, is for the end user\n     * @return {String} Character color (fill)\n     */\n    getCurrentCharColor: function() {\n      var cp = this._getCurrentCharIndex();\n      return this.getValueOfPropertyAt(cp.l, cp.c, 'fill');\n    },\n\n    /**\n     * Returns the cursor position for the getCurrent.. functions\n     * @private\n     */\n    _getCurrentCharIndex: function() {\n      var cursorPosition = this.get2DCursorLocation(this.selectionStart, true),\n          charIndex = cursorPosition.charIndex > 0 ? cursorPosition.charIndex - 1 : 0;\n      return { l: cursorPosition.lineIndex, c: charIndex };\n    }\n  });\n\n  /**\n   * Returns fabric.IText instance from an object representation\n   * @static\n   * @memberOf fabric.IText\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as argument\n   */\n  fabric.IText.fromObject = function(object, callback) {\n    parseDecoration(object);\n    if (object.styles) {\n      for (var i in object.styles) {\n        for (var j in object.styles[i]) {\n          parseDecoration(object.styles[i][j]);\n        }\n      }\n    }\n    fabric.Object._fromObject('IText', object, callback, 'text');\n  };\n})();\n\n\n(function() {\n\n  var clone = fabric.util.object.clone;\n\n  fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.prototype */ {\n\n    /**\n     * Initializes all the interactive behavior of IText\n     */\n    initBehavior: function() {\n      this.initAddedHandler();\n      this.initRemovedHandler();\n      this.initCursorSelectionHandlers();\n      this.initDoubleClickSimulation();\n      this.mouseMoveHandler = this.mouseMoveHandler.bind(this);\n    },\n\n    onDeselect: function() {\n      this.isEditing && this.exitEditing();\n      this.selected = false;\n    },\n\n    /**\n     * Initializes \"added\" event handler\n     */\n    initAddedHandler: function() {\n      var _this = this;\n      this.on('added', function() {\n        var canvas = _this.canvas;\n        if (canvas) {\n          if (!canvas._hasITextHandlers) {\n            canvas._hasITextHandlers = true;\n            _this._initCanvasHandlers(canvas);\n          }\n          canvas._iTextInstances = canvas._iTextInstances || [];\n          canvas._iTextInstances.push(_this);\n        }\n      });\n    },\n\n    initRemovedHandler: function() {\n      var _this = this;\n      this.on('removed', function() {\n        var canvas = _this.canvas;\n        if (canvas) {\n          canvas._iTextInstances = canvas._iTextInstances || [];\n          fabric.util.removeFromArray(canvas._iTextInstances, _this);\n          if (canvas._iTextInstances.length === 0) {\n            canvas._hasITextHandlers = false;\n            _this._removeCanvasHandlers(canvas);\n          }\n        }\n      });\n    },\n\n    /**\n     * register canvas event to manage exiting on other instances\n     * @private\n     */\n    _initCanvasHandlers: function(canvas) {\n      canvas._mouseUpITextHandler = function() {\n        if (canvas._iTextInstances) {\n          canvas._iTextInstances.forEach(function(obj) {\n            obj.__isMousedown = false;\n          });\n        }\n      };\n      canvas.on('mouse:up', canvas._mouseUpITextHandler);\n    },\n\n    /**\n     * remove canvas event to manage exiting on other instances\n     * @private\n     */\n    _removeCanvasHandlers: function(canvas) {\n      canvas.off('mouse:up', canvas._mouseUpITextHandler);\n    },\n\n    /**\n     * @private\n     */\n    _tick: function() {\n      this._currentTickState = this._animateCursor(this, 1, this.cursorDuration, '_onTickComplete');\n    },\n\n    /**\n     * @private\n     */\n    _animateCursor: function(obj, targetOpacity, duration, completeMethod) {\n\n      var tickState;\n\n      tickState = {\n        isAborted: false,\n        abort: function() {\n          this.isAborted = true;\n        },\n      };\n\n      obj.animate('_currentCursorOpacity', targetOpacity, {\n        duration: duration,\n        onComplete: function() {\n          if (!tickState.isAborted) {\n            obj[completeMethod]();\n          }\n        },\n        onChange: function() {\n          // we do not want to animate a selection, only cursor\n          if (obj.canvas && obj.selectionStart === obj.selectionEnd) {\n            obj.renderCursorOrSelection();\n          }\n        },\n        abort: function() {\n          return tickState.isAborted;\n        }\n      });\n      return tickState;\n    },\n\n    /**\n     * @private\n     */\n    _onTickComplete: function() {\n\n      var _this = this;\n\n      if (this._cursorTimeout1) {\n        clearTimeout(this._cursorTimeout1);\n      }\n      this._cursorTimeout1 = setTimeout(function() {\n        _this._currentTickCompleteState = _this._animateCursor(_this, 0, this.cursorDuration / 2, '_tick');\n      }, 100);\n    },\n\n    /**\n     * Initializes delayed cursor\n     */\n    initDelayedCursor: function(restart) {\n      var _this = this,\n          delay = restart ? 0 : this.cursorDelay;\n\n      this.abortCursorAnimation();\n      this._currentCursorOpacity = 1;\n      this._cursorTimeout2 = setTimeout(function() {\n        _this._tick();\n      }, delay);\n    },\n\n    /**\n     * Aborts cursor animation and clears all timeouts\n     */\n    abortCursorAnimation: function() {\n      var shouldClear = this._currentTickState || this._currentTickCompleteState,\n          canvas = this.canvas;\n      this._currentTickState && this._currentTickState.abort();\n      this._currentTickCompleteState && this._currentTickCompleteState.abort();\n\n      clearTimeout(this._cursorTimeout1);\n      clearTimeout(this._cursorTimeout2);\n\n      this._currentCursorOpacity = 0;\n      // to clear just itext area we need to transform the context\n      // it may not be worth it\n      if (shouldClear && canvas) {\n        canvas.clearContext(canvas.contextTop || canvas.contextContainer);\n      }\n\n    },\n\n    /**\n     * Selects entire text\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    selectAll: function() {\n      this.selectionStart = 0;\n      this.selectionEnd = this._text.length;\n      this._fireSelectionChanged();\n      this._updateTextarea();\n      return this;\n    },\n\n    /**\n     * Returns selected text\n     * @return {String}\n     */\n    getSelectedText: function() {\n      return this._text.slice(this.selectionStart, this.selectionEnd).join('');\n    },\n\n    /**\n     * Find new selection index representing start of current word according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findWordBoundaryLeft: function(startFrom) {\n      var offset = 0, index = startFrom - 1;\n\n      // remove space before cursor first\n      if (this._reSpace.test(this._text[index])) {\n        while (this._reSpace.test(this._text[index])) {\n          offset++;\n          index--;\n        }\n      }\n      while (/\\S/.test(this._text[index]) && index > -1) {\n        offset++;\n        index--;\n      }\n\n      return startFrom - offset;\n    },\n\n    /**\n     * Find new selection index representing end of current word according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findWordBoundaryRight: function(startFrom) {\n      var offset = 0, index = startFrom;\n\n      // remove space after cursor first\n      if (this._reSpace.test(this._text[index])) {\n        while (this._reSpace.test(this._text[index])) {\n          offset++;\n          index++;\n        }\n      }\n      while (/\\S/.test(this._text[index]) && index < this._text.length) {\n        offset++;\n        index++;\n      }\n\n      return startFrom + offset;\n    },\n\n    /**\n     * Find new selection index representing start of current line according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findLineBoundaryLeft: function(startFrom) {\n      var offset = 0, index = startFrom - 1;\n\n      while (!/\\n/.test(this._text[index]) && index > -1) {\n        offset++;\n        index--;\n      }\n\n      return startFrom - offset;\n    },\n\n    /**\n     * Find new selection index representing end of current line according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findLineBoundaryRight: function(startFrom) {\n      var offset = 0, index = startFrom;\n\n      while (!/\\n/.test(this._text[index]) && index < this._text.length) {\n        offset++;\n        index++;\n      }\n\n      return startFrom + offset;\n    },\n\n    /**\n     * Finds index corresponding to beginning or end of a word\n     * @param {Number} selectionStart Index of a character\n     * @param {Number} direction 1 or -1\n     * @return {Number} Index of the beginning or end of a word\n     */\n    searchWordBoundary: function(selectionStart, direction) {\n      var text = this._text,\n          index     = this._reSpace.test(text[selectionStart]) ? selectionStart - 1 : selectionStart,\n          _char     = text[index],\n          // wrong\n          reNonWord = fabric.reNonWord;\n\n      while (!reNonWord.test(_char) && index > 0 && index < text.length) {\n        index += direction;\n        _char = text[index];\n      }\n      if (reNonWord.test(_char)) {\n        index += direction === 1 ? 0 : 1;\n      }\n      return index;\n    },\n\n    /**\n     * Selects a word based on the index\n     * @param {Number} selectionStart Index of a character\n     */\n    selectWord: function(selectionStart) {\n      selectionStart = selectionStart || this.selectionStart;\n      var newSelectionStart = this.searchWordBoundary(selectionStart, -1), /* search backwards */\n          newSelectionEnd = this.searchWordBoundary(selectionStart, 1); /* search forward */\n\n      this.selectionStart = newSelectionStart;\n      this.selectionEnd = newSelectionEnd;\n      this._fireSelectionChanged();\n      this._updateTextarea();\n      this.renderCursorOrSelection();\n    },\n\n    /**\n     * Selects a line based on the index\n     * @param {Number} selectionStart Index of a character\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    selectLine: function(selectionStart) {\n      selectionStart = selectionStart || this.selectionStart;\n      var newSelectionStart = this.findLineBoundaryLeft(selectionStart),\n          newSelectionEnd = this.findLineBoundaryRight(selectionStart);\n\n      this.selectionStart = newSelectionStart;\n      this.selectionEnd = newSelectionEnd;\n      this._fireSelectionChanged();\n      this._updateTextarea();\n      return this;\n    },\n\n    /**\n     * Enters editing state\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    enterEditing: function(e) {\n      if (this.isEditing || !this.editable) {\n        return;\n      }\n\n      if (this.canvas) {\n        this.canvas.calcOffset();\n        this.exitEditingOnOthers(this.canvas);\n      }\n\n      this.isEditing = true;\n\n      this.initHiddenTextarea(e);\n      this.hiddenTextarea.focus();\n      this.hiddenTextarea.value = this.text;\n      this._updateTextarea();\n      this._saveEditingProps();\n      this._setEditingProps();\n      this._textBeforeEdit = this.text;\n\n      this._tick();\n      this.fire('editing:entered');\n      this._fireSelectionChanged();\n      if (!this.canvas) {\n        return this;\n      }\n      this.canvas.fire('text:editing:entered', { target: this });\n      this.initMouseMoveHandler();\n      this.canvas.requestRenderAll();\n      return this;\n    },\n\n    exitEditingOnOthers: function(canvas) {\n      if (canvas._iTextInstances) {\n        canvas._iTextInstances.forEach(function(obj) {\n          obj.selected = false;\n          if (obj.isEditing) {\n            obj.exitEditing();\n          }\n        });\n      }\n    },\n\n    /**\n     * Initializes \"mousemove\" event handler\n     */\n    initMouseMoveHandler: function() {\n      this.canvas.on('mouse:move', this.mouseMoveHandler);\n    },\n\n    /**\n     * @private\n     */\n    mouseMoveHandler: function(options) {\n      if (!this.__isMousedown || !this.isEditing) {\n        return;\n      }\n\n      var newSelectionStart = this.getSelectionStartFromPointer(options.e),\n          currentStart = this.selectionStart,\n          currentEnd = this.selectionEnd;\n      if (\n        (newSelectionStart !== this.__selectionStartOnMouseDown || currentStart === currentEnd)\n        &&\n        (currentStart === newSelectionStart || currentEnd === newSelectionStart)\n      ) {\n        return;\n      }\n      if (newSelectionStart > this.__selectionStartOnMouseDown) {\n        this.selectionStart = this.__selectionStartOnMouseDown;\n        this.selectionEnd = newSelectionStart;\n      }\n      else {\n        this.selectionStart = newSelectionStart;\n        this.selectionEnd = this.__selectionStartOnMouseDown;\n      }\n      if (this.selectionStart !== currentStart || this.selectionEnd !== currentEnd) {\n        this.restartCursorIfNeeded();\n        this._fireSelectionChanged();\n        this._updateTextarea();\n        this.renderCursorOrSelection();\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setEditingProps: function() {\n      this.hoverCursor = 'text';\n\n      if (this.canvas) {\n        this.canvas.defaultCursor = this.canvas.moveCursor = 'text';\n      }\n\n      this.borderColor = this.editingBorderColor;\n      this.hasControls = this.selectable = false;\n      this.lockMovementX = this.lockMovementY = true;\n    },\n\n    /**\n     * convert from textarea to grapheme indexes\n     */\n    fromStringToGraphemeSelection: function(start, end, text) {\n      var smallerTextStart = text.slice(0, start),\n          graphemeStart = fabric.util.string.graphemeSplit(smallerTextStart).length;\n      if (start === end) {\n        return { selectionStart: graphemeStart, selectionEnd: graphemeStart };\n      }\n      var smallerTextEnd = text.slice(start, end),\n          graphemeEnd = fabric.util.string.graphemeSplit(smallerTextEnd).length;\n      return { selectionStart: graphemeStart, selectionEnd: graphemeStart + graphemeEnd };\n    },\n\n    /**\n     * convert from fabric to textarea values\n     */\n    fromGraphemeToStringSelection: function(start, end, _text) {\n      var smallerTextStart = _text.slice(0, start),\n          graphemeStart = smallerTextStart.join('').length;\n      if (start === end) {\n        return { selectionStart: graphemeStart, selectionEnd: graphemeStart };\n      }\n      var smallerTextEnd = _text.slice(start, end),\n          graphemeEnd = smallerTextEnd.join('').length;\n      return { selectionStart: graphemeStart, selectionEnd: graphemeStart + graphemeEnd };\n    },\n\n    /**\n     * @private\n     */\n    _updateTextarea: function() {\n      this.cursorOffsetCache = { };\n      if (!this.hiddenTextarea) {\n        return;\n      }\n      if (!this.inCompositionMode) {\n        var newSelection = this.fromGraphemeToStringSelection(this.selectionStart, this.selectionEnd, this._text);\n        this.hiddenTextarea.selectionStart = newSelection.selectionStart;\n        this.hiddenTextarea.selectionEnd = newSelection.selectionEnd;\n      }\n      this.updateTextareaPosition();\n    },\n\n    /**\n     * @private\n     */\n    updateFromTextArea: function() {\n      if (!this.hiddenTextarea) {\n        return;\n      }\n      this.cursorOffsetCache = { };\n      this.text = this.hiddenTextarea.value;\n      if (this._shouldClearDimensionCache()) {\n        this.initDimensions();\n        this.setCoords();\n      }\n      var newSelection = this.fromStringToGraphemeSelection(\n        this.hiddenTextarea.selectionStart, this.hiddenTextarea.selectionEnd, this.hiddenTextarea.value);\n      this.selectionEnd = this.selectionStart = newSelection.selectionEnd;\n      if (!this.inCompositionMode) {\n        this.selectionStart = newSelection.selectionStart;\n      }\n      this.updateTextareaPosition();\n    },\n\n    /**\n     * @private\n     */\n    updateTextareaPosition: function() {\n      if (this.selectionStart === this.selectionEnd) {\n        var style = this._calcTextareaPosition();\n        this.hiddenTextarea.style.left = style.left;\n        this.hiddenTextarea.style.top = style.top;\n      }\n    },\n\n    /**\n     * @private\n     * @return {Object} style contains style for hiddenTextarea\n     */\n    _calcTextareaPosition: function() {\n      if (!this.canvas) {\n        return { x: 1, y: 1 };\n      }\n      var desiredPosition = this.inCompositionMode ? this.compositionStart : this.selectionStart,\n          boundaries = this._getCursorBoundaries(desiredPosition),\n          cursorLocation = this.get2DCursorLocation(desiredPosition),\n          lineIndex = cursorLocation.lineIndex,\n          charIndex = cursorLocation.charIndex,\n          charHeight = this.getValueOfPropertyAt(lineIndex, charIndex, 'fontSize') * this.lineHeight,\n          leftOffset = boundaries.leftOffset,\n          m = this.calcTransformMatrix(),\n          p = {\n            x: boundaries.left + leftOffset,\n            y: boundaries.top + boundaries.topOffset + charHeight\n          },\n          retinaScaling = this.canvas.getRetinaScaling(),\n          upperCanvas = this.canvas.upperCanvasEl,\n          upperCanvasWidth = upperCanvas.width / retinaScaling,\n          upperCanvasHeight = upperCanvas.height / retinaScaling,\n          maxWidth = upperCanvasWidth - charHeight,\n          maxHeight = upperCanvasHeight - charHeight,\n          scaleX = upperCanvas.clientWidth / upperCanvasWidth,\n          scaleY = upperCanvas.clientHeight / upperCanvasHeight;\n\n      p = fabric.util.transformPoint(p, m);\n      p = fabric.util.transformPoint(p, this.canvas.viewportTransform);\n      p.x *= scaleX;\n      p.y *= scaleY;\n      if (p.x < 0) {\n        p.x = 0;\n      }\n      if (p.x > maxWidth) {\n        p.x = maxWidth;\n      }\n      if (p.y < 0) {\n        p.y = 0;\n      }\n      if (p.y > maxHeight) {\n        p.y = maxHeight;\n      }\n\n      // add canvas offset on document\n      p.x += this.canvas._offset.left;\n      p.y += this.canvas._offset.top;\n\n      return { left: p.x + 'px', top: p.y + 'px', fontSize: charHeight + 'px', charHeight: charHeight };\n    },\n\n    /**\n     * @private\n     */\n    _saveEditingProps: function() {\n      this._savedProps = {\n        hasControls: this.hasControls,\n        borderColor: this.borderColor,\n        lockMovementX: this.lockMovementX,\n        lockMovementY: this.lockMovementY,\n        hoverCursor: this.hoverCursor,\n        selectable: this.selectable,\n        defaultCursor: this.canvas && this.canvas.defaultCursor,\n        moveCursor: this.canvas && this.canvas.moveCursor\n      };\n    },\n\n    /**\n     * @private\n     */\n    _restoreEditingProps: function() {\n      if (!this._savedProps) {\n        return;\n      }\n\n      this.hoverCursor = this._savedProps.hoverCursor;\n      this.hasControls = this._savedProps.hasControls;\n      this.borderColor = this._savedProps.borderColor;\n      this.selectable = this._savedProps.selectable;\n      this.lockMovementX = this._savedProps.lockMovementX;\n      this.lockMovementY = this._savedProps.lockMovementY;\n\n      if (this.canvas) {\n        this.canvas.defaultCursor = this._savedProps.defaultCursor;\n        this.canvas.moveCursor = this._savedProps.moveCursor;\n      }\n    },\n\n    /**\n     * Exits from editing state\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    exitEditing: function() {\n      var isTextChanged = (this._textBeforeEdit !== this.text);\n      var hiddenTextarea = this.hiddenTextarea;\n      this.selected = false;\n      this.isEditing = false;\n\n      this.selectionEnd = this.selectionStart;\n\n      if (hiddenTextarea) {\n        hiddenTextarea.blur && hiddenTextarea.blur();\n        hiddenTextarea.parentNode && hiddenTextarea.parentNode.removeChild(hiddenTextarea);\n      }\n      this.hiddenTextarea = null;\n      this.abortCursorAnimation();\n      this._restoreEditingProps();\n      this._currentCursorOpacity = 0;\n      if (this._shouldClearDimensionCache()) {\n        this.initDimensions();\n        this.setCoords();\n      }\n      this.fire('editing:exited');\n      isTextChanged && this.fire('modified');\n      if (this.canvas) {\n        this.canvas.off('mouse:move', this.mouseMoveHandler);\n        this.canvas.fire('text:editing:exited', { target: this });\n        isTextChanged && this.canvas.fire('object:modified', { target: this });\n      }\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _removeExtraneousStyles: function() {\n      for (var prop in this.styles) {\n        if (!this._textLines[prop]) {\n          delete this.styles[prop];\n        }\n      }\n    },\n\n    /**\n     * remove and reflow a style block from start to end.\n     * @param {Number} start linear start position for removal (included in removal)\n     * @param {Number} end linear end position for removal ( excluded from removal )\n     */\n    removeStyleFromTo: function(start, end) {\n      var cursorStart = this.get2DCursorLocation(start, true),\n          cursorEnd = this.get2DCursorLocation(end, true),\n          lineStart = cursorStart.lineIndex,\n          charStart = cursorStart.charIndex,\n          lineEnd = cursorEnd.lineIndex,\n          charEnd = cursorEnd.charIndex,\n          i, styleObj;\n      if (lineStart !== lineEnd) {\n        // step1 remove the trailing of lineStart\n        if (this.styles[lineStart]) {\n          for (i = charStart; i < this._unwrappedTextLines[lineStart].length; i++) {\n            delete this.styles[lineStart][i];\n          }\n        }\n        // step2 move the trailing of lineEnd to lineStart if needed\n        if (this.styles[lineEnd]) {\n          for (i = charEnd; i < this._unwrappedTextLines[lineEnd].length; i++) {\n            styleObj = this.styles[lineEnd][i];\n            if (styleObj) {\n              this.styles[lineStart] || (this.styles[lineStart] = { });\n              this.styles[lineStart][charStart + i - charEnd] = styleObj;\n            }\n          }\n        }\n        // step3 detects lines will be completely removed.\n        for (i = lineStart + 1; i <= lineEnd; i++) {\n          delete this.styles[i];\n        }\n        // step4 shift remaining lines.\n        this.shiftLineStyles(lineEnd, lineStart - lineEnd);\n      }\n      else {\n        // remove and shift left on the same line\n        if (this.styles[lineStart]) {\n          styleObj = this.styles[lineStart];\n          var diff = charEnd - charStart, numericChar, _char;\n          for (i = charStart; i < charEnd; i++) {\n            delete styleObj[i];\n          }\n          for (_char in this.styles[lineStart]) {\n            numericChar = parseInt(_char, 10);\n            if (numericChar >= charEnd) {\n              styleObj[numericChar - diff] = styleObj[_char];\n              delete styleObj[_char];\n            }\n          }\n        }\n      }\n    },\n\n    /**\n     * Shifts line styles up or down\n     * @param {Number} lineIndex Index of a line\n     * @param {Number} offset Can any number?\n     */\n    shiftLineStyles: function(lineIndex, offset) {\n      // shift all line styles by offset upward or downward\n      // do not clone deep. we need new array, not new style objects\n      var clonedStyles = clone(this.styles);\n      for (var line in this.styles) {\n        var numericLine = parseInt(line, 10);\n        if (numericLine > lineIndex) {\n          this.styles[numericLine + offset] = clonedStyles[numericLine];\n          if (!clonedStyles[numericLine - offset]) {\n            delete this.styles[numericLine];\n          }\n        }\n      }\n    },\n\n    restartCursorIfNeeded: function() {\n      if (!this._currentTickState || this._currentTickState.isAborted\n        || !this._currentTickCompleteState || this._currentTickCompleteState.isAborted\n      ) {\n        this.initDelayedCursor();\n      }\n    },\n\n    /**\n     * Handle insertion of more consecutive style lines for when one or more\n     * newlines gets added to the text. Since current style needs to be shifted\n     * first we shift the current style of the number lines needed, then we add\n     * new lines from the last to the first.\n     * @param {Number} lineIndex Index of a line\n     * @param {Number} charIndex Index of a char\n     * @param {Number} qty number of lines to add\n     * @param {Array} copiedStyle Array of objects styles\n     */\n    insertNewlineStyleObject: function(lineIndex, charIndex, qty, copiedStyle) {\n      var currentCharStyle,\n          newLineStyles = {},\n          somethingAdded = false,\n          isEndOfLine = this._unwrappedTextLines[lineIndex].length === charIndex;\n\n      qty || (qty = 1);\n      this.shiftLineStyles(lineIndex, qty);\n      if (this.styles[lineIndex]) {\n        currentCharStyle = this.styles[lineIndex][charIndex === 0 ? charIndex : charIndex - 1];\n      }\n      // we clone styles of all chars\n      // after cursor onto the current line\n      for (var index in this.styles[lineIndex]) {\n        var numIndex = parseInt(index, 10);\n        if (numIndex >= charIndex) {\n          somethingAdded = true;\n          newLineStyles[numIndex - charIndex] = this.styles[lineIndex][index];\n          // remove lines from the previous line since they're on a new line now\n          if (!(isEndOfLine && charIndex === 0)) {\n            delete this.styles[lineIndex][index];\n          }\n        }\n      }\n      var styleCarriedOver = false;\n      if (somethingAdded && !isEndOfLine) {\n        // if is end of line, the extra style we copied\n        // is probably not something we want\n        this.styles[lineIndex + qty] = newLineStyles;\n        styleCarriedOver = true;\n      }\n      if (styleCarriedOver) {\n        // skip the last line of since we already prepared it.\n        qty--;\n      }\n      // for the all the lines or all the other lines\n      // we clone current char style onto the next (otherwise empty) line\n      while (qty > 0) {\n        if (copiedStyle && copiedStyle[qty - 1]) {\n          this.styles[lineIndex + qty] = { 0: clone(copiedStyle[qty - 1]) };\n        }\n        else if (currentCharStyle) {\n          this.styles[lineIndex + qty] = { 0: clone(currentCharStyle) };\n        }\n        else {\n          delete this.styles[lineIndex + qty];\n        }\n        qty--;\n      }\n      this._forceClearCache = true;\n    },\n\n    /**\n     * Inserts style object for a given line/char index\n     * @param {Number} lineIndex Index of a line\n     * @param {Number} charIndex Index of a char\n     * @param {Number} quantity number Style object to insert, if given\n     * @param {Array} copiedStyle array of style objects\n     */\n    insertCharStyleObject: function(lineIndex, charIndex, quantity, copiedStyle) {\n      if (!this.styles) {\n        this.styles = {};\n      }\n      var currentLineStyles       = this.styles[lineIndex],\n          currentLineStylesCloned = currentLineStyles ? clone(currentLineStyles) : {};\n\n      quantity || (quantity = 1);\n      // shift all char styles by quantity forward\n      // 0,1,2,3 -> (charIndex=2) -> 0,1,3,4 -> (insert 2) -> 0,1,2,3,4\n      for (var index in currentLineStylesCloned) {\n        var numericIndex = parseInt(index, 10);\n        if (numericIndex >= charIndex) {\n          currentLineStyles[numericIndex + quantity] = currentLineStylesCloned[numericIndex];\n          // only delete the style if there was nothing moved there\n          if (!currentLineStylesCloned[numericIndex - quantity]) {\n            delete currentLineStyles[numericIndex];\n          }\n        }\n      }\n      this._forceClearCache = true;\n      if (copiedStyle) {\n        while (quantity--) {\n          if (!Object.keys(copiedStyle[quantity]).length) {\n            continue;\n          }\n          if (!this.styles[lineIndex]) {\n            this.styles[lineIndex] = {};\n          }\n          this.styles[lineIndex][charIndex + quantity] = clone(copiedStyle[quantity]);\n        }\n        return;\n      }\n      if (!currentLineStyles) {\n        return;\n      }\n      var newStyle = currentLineStyles[charIndex ? charIndex - 1 : 1];\n      while (newStyle && quantity--) {\n        this.styles[lineIndex][charIndex + quantity] = clone(newStyle);\n      }\n    },\n\n    /**\n     * Inserts style object(s)\n     * @param {Array} insertedText Characters at the location where style is inserted\n     * @param {Number} start cursor index for inserting style\n     * @param {Array} [copiedStyle] array of style objects to insert.\n     */\n    insertNewStyleBlock: function(insertedText, start, copiedStyle) {\n      var cursorLoc = this.get2DCursorLocation(start, true),\n          addedLines = [0], linesLength = 0;\n      // get an array of how many char per lines are being added.\n      for (var i = 0; i < insertedText.length; i++) {\n        if (insertedText[i] === '\\n') {\n          linesLength++;\n          addedLines[linesLength] = 0;\n        }\n        else {\n          addedLines[linesLength]++;\n        }\n      }\n      // for the first line copy the style from the current char position.\n      if (addedLines[0] > 0) {\n        this.insertCharStyleObject(cursorLoc.lineIndex, cursorLoc.charIndex, addedLines[0], copiedStyle);\n        copiedStyle = copiedStyle && copiedStyle.slice(addedLines[0] + 1);\n      }\n      linesLength && this.insertNewlineStyleObject(\n        cursorLoc.lineIndex, cursorLoc.charIndex + addedLines[0], linesLength);\n      for (var i = 1; i < linesLength; i++) {\n        if (addedLines[i] > 0) {\n          this.insertCharStyleObject(cursorLoc.lineIndex + i, 0, addedLines[i], copiedStyle);\n        }\n        else if (copiedStyle) {\n          this.styles[cursorLoc.lineIndex + i][0] = copiedStyle[0];\n        }\n        copiedStyle = copiedStyle && copiedStyle.slice(addedLines[i] + 1);\n      }\n      // we use i outside the loop to get it like linesLength\n      if (addedLines[i] > 0) {\n        this.insertCharStyleObject(cursorLoc.lineIndex + i, 0, addedLines[i], copiedStyle);\n      }\n    },\n\n    /**\n     * Set the selectionStart and selectionEnd according to the new position of cursor\n     * mimic the key - mouse navigation when shift is pressed.\n     */\n    setSelectionStartEndWithShift: function(start, end, newSelection) {\n      if (newSelection <= start) {\n        if (end === start) {\n          this._selectionDirection = 'left';\n        }\n        else if (this._selectionDirection === 'right') {\n          this._selectionDirection = 'left';\n          this.selectionEnd = start;\n        }\n        this.selectionStart = newSelection;\n      }\n      else if (newSelection > start && newSelection < end) {\n        if (this._selectionDirection === 'right') {\n          this.selectionEnd = newSelection;\n        }\n        else {\n          this.selectionStart = newSelection;\n        }\n      }\n      else {\n        // newSelection is > selection start and end\n        if (end === start) {\n          this._selectionDirection = 'right';\n        }\n        else if (this._selectionDirection === 'left') {\n          this._selectionDirection = 'right';\n          this.selectionStart = end;\n        }\n        this.selectionEnd = newSelection;\n      }\n    },\n\n    setSelectionInBoundaries: function() {\n      var length = this.text.length;\n      if (this.selectionStart > length) {\n        this.selectionStart = length;\n      }\n      else if (this.selectionStart < 0) {\n        this.selectionStart = 0;\n      }\n      if (this.selectionEnd > length) {\n        this.selectionEnd = length;\n      }\n      else if (this.selectionEnd < 0) {\n        this.selectionEnd = 0;\n      }\n    }\n  });\n})();\n\n\nfabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.prototype */ {\n  /**\n   * Initializes \"dbclick\" event handler\n   */\n  initDoubleClickSimulation: function() {\n\n    // for double click\n    this.__lastClickTime = +new Date();\n\n    // for triple click\n    this.__lastLastClickTime = +new Date();\n\n    this.__lastPointer = { };\n\n    this.on('mousedown', this.onMouseDown);\n  },\n\n  /**\n   * Default event handler to simulate triple click\n   * @private\n   */\n  onMouseDown: function(options) {\n    if (!this.canvas) {\n      return;\n    }\n    this.__newClickTime = +new Date();\n    var newPointer = options.pointer;\n    if (this.isTripleClick(newPointer)) {\n      this.fire('tripleclick', options);\n      this._stopEvent(options.e);\n    }\n    this.__lastLastClickTime = this.__lastClickTime;\n    this.__lastClickTime = this.__newClickTime;\n    this.__lastPointer = newPointer;\n    this.__lastIsEditing = this.isEditing;\n    this.__lastSelected = this.selected;\n  },\n\n  isTripleClick: function(newPointer) {\n    return this.__newClickTime - this.__lastClickTime < 500 &&\n        this.__lastClickTime - this.__lastLastClickTime < 500 &&\n        this.__lastPointer.x === newPointer.x &&\n        this.__lastPointer.y === newPointer.y;\n  },\n\n  /**\n   * @private\n   */\n  _stopEvent: function(e) {\n    e.preventDefault && e.preventDefault();\n    e.stopPropagation && e.stopPropagation();\n  },\n\n  /**\n   * Initializes event handlers related to cursor or selection\n   */\n  initCursorSelectionHandlers: function() {\n    this.initMousedownHandler();\n    this.initMouseupHandler();\n    this.initClicks();\n  },\n\n  /**\n   * Default handler for double click, select a word\n   */\n  doubleClickHandler: function(options) {\n    if (!this.isEditing) {\n      return;\n    }\n    this.selectWord(this.getSelectionStartFromPointer(options.e));\n  },\n\n  /**\n   * Default handler for triple click, select a line\n   */\n  tripleClickHandler: function(options) {\n    if (!this.isEditing) {\n      return;\n    }\n    this.selectLine(this.getSelectionStartFromPointer(options.e));\n  },\n\n  /**\n   * Initializes double and triple click event handlers\n   */\n  initClicks: function() {\n    this.on('mousedblclick', this.doubleClickHandler);\n    this.on('tripleclick', this.tripleClickHandler);\n  },\n\n  /**\n   * Default event handler for the basic functionalities needed on _mouseDown\n   * can be overridden to do something different.\n   * Scope of this implementation is: find the click position, set selectionStart\n   * find selectionEnd, initialize the drawing of either cursor or selection area\n   */\n  _mouseDownHandler: function(options) {\n    if (!this.canvas || !this.editable || (options.e.button && options.e.button !== 1)) {\n      return;\n    }\n\n    this.__isMousedown = true;\n\n    if (this.selected) {\n      this.setCursorByClick(options.e);\n    }\n\n    if (this.isEditing) {\n      this.__selectionStartOnMouseDown = this.selectionStart;\n      if (this.selectionStart === this.selectionEnd) {\n        this.abortCursorAnimation();\n      }\n      this.renderCursorOrSelection();\n    }\n  },\n\n  /**\n   * Default event handler for the basic functionalities needed on mousedown:before\n   * can be overridden to do something different.\n   * Scope of this implementation is: verify the object is already selected when mousing down\n   */\n  _mouseDownHandlerBefore: function(options) {\n    if (!this.canvas || !this.editable || (options.e.button && options.e.button !== 1)) {\n      return;\n    }\n    // we want to avoid that an object that was selected and then becomes unselectable,\n    // may trigger editing mode in some way.\n    this.selected = this === this.canvas._activeObject;\n  },\n\n  /**\n   * Initializes \"mousedown\" event handler\n   */\n  initMousedownHandler: function() {\n    this.on('mousedown', this._mouseDownHandler);\n    this.on('mousedown:before', this._mouseDownHandlerBefore);\n  },\n\n  /**\n   * Initializes \"mouseup\" event handler\n   */\n  initMouseupHandler: function() {\n    this.on('mouseup', this.mouseUpHandler);\n  },\n\n  /**\n   * standard hander for mouse up, overridable\n   * @private\n   */\n  mouseUpHandler: function(options) {\n    this.__isMousedown = false;\n    if (!this.editable || this.group ||\n      (options.transform && options.transform.actionPerformed) ||\n      (options.e.button && options.e.button !== 1)) {\n      return;\n    }\n\n    if (this.canvas) {\n      var currentActive = this.canvas._activeObject;\n      if (currentActive && currentActive !== this) {\n        // avoid running this logic when there is an active object\n        // this because is possible with shift click and fast clicks,\n        // to rapidly deselect and reselect this object and trigger an enterEdit\n        return;\n      }\n    }\n\n    if (this.__lastSelected && !this.__corner) {\n      this.selected = false;\n      this.__lastSelected = false;\n      this.enterEditing(options.e);\n      if (this.selectionStart === this.selectionEnd) {\n        this.initDelayedCursor(true);\n      }\n      else {\n        this.renderCursorOrSelection();\n      }\n    }\n    else {\n      this.selected = true;\n    }\n  },\n\n  /**\n   * Changes cursor location in a text depending on passed pointer (x/y) object\n   * @param {Event} e Event object\n   */\n  setCursorByClick: function(e) {\n    var newSelection = this.getSelectionStartFromPointer(e),\n        start = this.selectionStart, end = this.selectionEnd;\n    if (e.shiftKey) {\n      this.setSelectionStartEndWithShift(start, end, newSelection);\n    }\n    else {\n      this.selectionStart = newSelection;\n      this.selectionEnd = newSelection;\n    }\n    if (this.isEditing) {\n      this._fireSelectionChanged();\n      this._updateTextarea();\n    }\n  },\n\n  /**\n   * Returns index of a character corresponding to where an object was clicked\n   * @param {Event} e Event object\n   * @return {Number} Index of a character\n   */\n  getSelectionStartFromPointer: function(e) {\n    var mouseOffset = this.getLocalPointer(e),\n        prevWidth = 0,\n        width = 0,\n        height = 0,\n        charIndex = 0,\n        lineIndex = 0,\n        lineLeftOffset,\n        line;\n\n    for (var i = 0, len = this._textLines.length; i < len; i++) {\n      if (height <= mouseOffset.y) {\n        height += this.getHeightOfLine(i) * this.scaleY;\n        lineIndex = i;\n        if (i > 0) {\n          charIndex += this._textLines[i - 1].length + this.missingNewlineOffset(i - 1);\n        }\n      }\n      else {\n        break;\n      }\n    }\n    lineLeftOffset = this._getLineLeftOffset(lineIndex);\n    width = lineLeftOffset * this.scaleX;\n    line = this._textLines[lineIndex];\n    for (var j = 0, jlen = line.length; j < jlen; j++) {\n      prevWidth = width;\n      // i removed something about flipX here, check.\n      width += this.__charBounds[lineIndex][j].kernedWidth * this.scaleX;\n      if (width <= mouseOffset.x) {\n        charIndex++;\n      }\n      else {\n        break;\n      }\n    }\n    return this._getNewSelectionStartFromOffset(mouseOffset, prevWidth, width, charIndex, jlen);\n  },\n\n  /**\n   * @private\n   */\n  _getNewSelectionStartFromOffset: function(mouseOffset, prevWidth, width, index, jlen) {\n    // we need Math.abs because when width is after the last char, the offset is given as 1, while is 0\n    var distanceBtwLastCharAndCursor = mouseOffset.x - prevWidth,\n        distanceBtwNextCharAndCursor = width - mouseOffset.x,\n        offset = distanceBtwNextCharAndCursor > distanceBtwLastCharAndCursor ||\n          distanceBtwNextCharAndCursor < 0 ? 0 : 1,\n        newSelectionStart = index + offset;\n    // if object is horizontally flipped, mirror cursor location from the end\n    if (this.flipX) {\n      newSelectionStart = jlen - newSelectionStart;\n    }\n\n    if (newSelectionStart > this._text.length) {\n      newSelectionStart = this._text.length;\n    }\n\n    return newSelectionStart;\n  }\n});\n\n\nfabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.prototype */ {\n\n  /**\n   * Initializes hidden textarea (needed to bring up keyboard in iOS)\n   */\n  initHiddenTextarea: function() {\n    this.hiddenTextarea = fabric.document.createElement('textarea');\n    this.hiddenTextarea.setAttribute('autocapitalize', 'off');\n    this.hiddenTextarea.setAttribute('autocorrect', 'off');\n    this.hiddenTextarea.setAttribute('autocomplete', 'off');\n    this.hiddenTextarea.setAttribute('spellcheck', 'false');\n    this.hiddenTextarea.setAttribute('data-fabric-hiddentextarea', '');\n    this.hiddenTextarea.setAttribute('wrap', 'off');\n    var style = this._calcTextareaPosition();\n    // line-height: 1px; was removed from the style to fix this:\n    // https://bugs.chromium.org/p/chromium/issues/detail?id=870966\n    this.hiddenTextarea.style.cssText = 'position: absolute; top: ' + style.top +\n    '; left: ' + style.left + '; z-index: -999; opacity: 0; width: 1px; height: 1px; font-size: 1px;' +\n    ' paddingｰtop: ' + style.fontSize + ';';\n    fabric.document.body.appendChild(this.hiddenTextarea);\n\n    fabric.util.addListener(this.hiddenTextarea, 'keydown', this.onKeyDown.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'keyup', this.onKeyUp.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'input', this.onInput.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'copy', this.copy.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'cut', this.copy.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'paste', this.paste.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'compositionstart', this.onCompositionStart.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'compositionupdate', this.onCompositionUpdate.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'compositionend', this.onCompositionEnd.bind(this));\n\n    if (!this._clickHandlerInitialized && this.canvas) {\n      fabric.util.addListener(this.canvas.upperCanvasEl, 'click', this.onClick.bind(this));\n      this._clickHandlerInitialized = true;\n    }\n  },\n\n  /**\n   * For functionalities on keyDown\n   * Map a special key to a function of the instance/prototype\n   * If you need different behaviour for ESC or TAB or arrows, you have to change\n   * this map setting the name of a function that you build on the fabric.Itext or\n   * your prototype.\n   * the map change will affect all Instances unless you need for only some text Instances\n   * in that case you have to clone this object and assign your Instance.\n   * this.keysMap = fabric.util.object.clone(this.keysMap);\n   * The function must be in fabric.Itext.prototype.myFunction And will receive event as args[0]\n   */\n  keysMap: {\n    9:  'exitEditing',\n    27: 'exitEditing',\n    33: 'moveCursorUp',\n    34: 'moveCursorDown',\n    35: 'moveCursorRight',\n    36: 'moveCursorLeft',\n    37: 'moveCursorLeft',\n    38: 'moveCursorUp',\n    39: 'moveCursorRight',\n    40: 'moveCursorDown',\n  },\n\n  /**\n   * For functionalities on keyUp + ctrl || cmd\n   */\n  ctrlKeysMapUp: {\n    67: 'copy',\n    88: 'cut'\n  },\n\n  /**\n   * For functionalities on keyDown + ctrl || cmd\n   */\n  ctrlKeysMapDown: {\n    65: 'selectAll'\n  },\n\n  onClick: function() {\n    // No need to trigger click event here, focus is enough to have the keyboard appear on Android\n    this.hiddenTextarea && this.hiddenTextarea.focus();\n  },\n\n  /**\n   * Handles keyup event\n   * @param {Event} e Event object\n   */\n  onKeyDown: function(e) {\n    if (!this.isEditing || this.inCompositionMode) {\n      return;\n    }\n    if (e.keyCode in this.keysMap) {\n      this[this.keysMap[e.keyCode]](e);\n    }\n    else if ((e.keyCode in this.ctrlKeysMapDown) && (e.ctrlKey || e.metaKey)) {\n      this[this.ctrlKeysMapDown[e.keyCode]](e);\n    }\n    else {\n      return;\n    }\n    e.stopImmediatePropagation();\n    e.preventDefault();\n    if (e.keyCode >= 33 && e.keyCode <= 40) {\n      // if i press an arrow key just update selection\n      this.clearContextTop();\n      this.renderCursorOrSelection();\n    }\n    else {\n      this.canvas && this.canvas.requestRenderAll();\n    }\n  },\n\n  /**\n   * Handles keyup event\n   * We handle KeyUp because ie11 and edge have difficulties copy/pasting\n   * if a copy/cut event fired, keyup is dismissed\n   * @param {Event} e Event object\n   */\n  onKeyUp: function(e) {\n    if (!this.isEditing || this._copyDone || this.inCompositionMode) {\n      this._copyDone = false;\n      return;\n    }\n    if ((e.keyCode in this.ctrlKeysMapUp) && (e.ctrlKey || e.metaKey)) {\n      this[this.ctrlKeysMapUp[e.keyCode]](e);\n    }\n    else {\n      return;\n    }\n    e.stopImmediatePropagation();\n    e.preventDefault();\n    this.canvas && this.canvas.requestRenderAll();\n  },\n\n  /**\n   * Handles onInput event\n   * @param {Event} e Event object\n   */\n  onInput: function(e) {\n    var fromPaste = this.fromPaste;\n    this.fromPaste = false;\n    e && e.stopPropagation();\n    if (!this.isEditing) {\n      return;\n    }\n    // decisions about style changes.\n    var nextText = this._splitTextIntoLines(this.hiddenTextarea.value).graphemeText,\n        charCount = this._text.length,\n        nextCharCount = nextText.length,\n        removedText, insertedText,\n        charDiff = nextCharCount - charCount,\n        selectionStart = this.selectionStart, selectionEnd = this.selectionEnd,\n        selection = selectionStart !== selectionEnd,\n        copiedStyle, removeFrom, removeTo;\n    if (this.hiddenTextarea.value === '') {\n      this.styles = { };\n      this.updateFromTextArea();\n      this.fire('changed');\n      if (this.canvas) {\n        this.canvas.fire('text:changed', { target: this });\n        this.canvas.requestRenderAll();\n      }\n      return;\n    }\n\n    var textareaSelection = this.fromStringToGraphemeSelection(\n      this.hiddenTextarea.selectionStart,\n      this.hiddenTextarea.selectionEnd,\n      this.hiddenTextarea.value\n    );\n    var backDelete = selectionStart > textareaSelection.selectionStart;\n\n    if (selection) {\n      removedText = this._text.slice(selectionStart, selectionEnd);\n      charDiff += selectionEnd - selectionStart;\n    }\n    else if (nextCharCount < charCount) {\n      if (backDelete) {\n        removedText = this._text.slice(selectionEnd + charDiff, selectionEnd);\n      }\n      else {\n        removedText = this._text.slice(selectionStart, selectionStart - charDiff);\n      }\n    }\n    var copiedStyle;\n    insertedText = nextText.slice(textareaSelection.selectionEnd - charDiff, textareaSelection.selectionEnd);\n    if (removedText && removedText.length) {\n      if (insertedText.length) {\n        // let's copy some style before deleting.\n        // we want to copy the style before the cursor OR the style at the cursor if selection\n        // is bigger than 0.\n        copiedStyle = this.getSelectionStyles(selectionStart, selectionStart + 1, true);\n        // now duplicate the style one for each inserted text.\n        copiedStyle = insertedText.map(function() {\n          // this return an array of references, but that is fine since we are\n          // copying the style later.\n          return copiedStyle[0];\n        });\n      }\n      if (selection) {\n        removeFrom = selectionStart;\n        removeTo = selectionEnd;\n      }\n      else if (backDelete) {\n        // detect differencies between forwardDelete and backDelete\n        removeFrom = selectionEnd - removedText.length;\n        removeTo = selectionEnd;\n      }\n      else {\n        removeFrom = selectionEnd;\n        removeTo = selectionEnd + removedText.length;\n      }\n      this.removeStyleFromTo(removeFrom, removeTo);\n    }\n    if (insertedText.length) {\n      if (fromPaste && insertedText.join('') === fabric.copiedText && !fabric.disableStyleCopyPaste) {\n        copiedStyle = fabric.copiedTextStyle;\n      }\n      this.insertNewStyleBlock(insertedText, selectionStart, copiedStyle);\n    }\n    this.updateFromTextArea();\n    this.fire('changed');\n    if (this.canvas) {\n      this.canvas.fire('text:changed', { target: this });\n      this.canvas.requestRenderAll();\n    }\n  },\n  /**\n   * Composition start\n   */\n  onCompositionStart: function() {\n    this.inCompositionMode = true;\n  },\n\n  /**\n   * Composition end\n   */\n  onCompositionEnd: function() {\n    this.inCompositionMode = false;\n  },\n\n  // /**\n  //  * Composition update\n  //  */\n  onCompositionUpdate: function(e) {\n    this.compositionStart = e.target.selectionStart;\n    this.compositionEnd = e.target.selectionEnd;\n    this.updateTextareaPosition();\n  },\n\n  /**\n   * Copies selected text\n   * @param {Event} e Event object\n   */\n  copy: function() {\n    if (this.selectionStart === this.selectionEnd) {\n      //do not cut-copy if no selection\n      return;\n    }\n\n    fabric.copiedText = this.getSelectedText();\n    if (!fabric.disableStyleCopyPaste) {\n      fabric.copiedTextStyle = this.getSelectionStyles(this.selectionStart, this.selectionEnd, true);\n    }\n    else {\n      fabric.copiedTextStyle = null;\n    }\n    this._copyDone = true;\n  },\n\n  /**\n   * Pastes text\n   * @param {Event} e Event object\n   */\n  paste: function() {\n    this.fromPaste = true;\n  },\n\n  /**\n   * @private\n   * @param {Event} e Event object\n   * @return {Object} Clipboard data object\n   */\n  _getClipboardData: function(e) {\n    return (e && e.clipboardData) || fabric.window.clipboardData;\n  },\n\n  /**\n   * Finds the width in pixels before the cursor on the same line\n   * @private\n   * @param {Number} lineIndex\n   * @param {Number} charIndex\n   * @return {Number} widthBeforeCursor width before cursor\n   */\n  _getWidthBeforeCursor: function(lineIndex, charIndex) {\n    var widthBeforeCursor = this._getLineLeftOffset(lineIndex), bound;\n\n    if (charIndex > 0) {\n      bound = this.__charBounds[lineIndex][charIndex - 1];\n      widthBeforeCursor += bound.left + bound.width;\n    }\n    return widthBeforeCursor;\n  },\n\n  /**\n   * Gets start offset of a selection\n   * @param {Event} e Event object\n   * @param {Boolean} isRight\n   * @return {Number}\n   */\n  getDownCursorOffset: function(e, isRight) {\n    var selectionProp = this._getSelectionForOffset(e, isRight),\n        cursorLocation = this.get2DCursorLocation(selectionProp),\n        lineIndex = cursorLocation.lineIndex;\n    // if on last line, down cursor goes to end of line\n    if (lineIndex === this._textLines.length - 1 || e.metaKey || e.keyCode === 34) {\n      // move to the end of a text\n      return this._text.length - selectionProp;\n    }\n    var charIndex = cursorLocation.charIndex,\n        widthBeforeCursor = this._getWidthBeforeCursor(lineIndex, charIndex),\n        indexOnOtherLine = this._getIndexOnLine(lineIndex + 1, widthBeforeCursor),\n        textAfterCursor = this._textLines[lineIndex].slice(charIndex);\n    return textAfterCursor.length + indexOnOtherLine + 1 + this.missingNewlineOffset(lineIndex);\n  },\n\n  /**\n   * private\n   * Helps finding if the offset should be counted from Start or End\n   * @param {Event} e Event object\n   * @param {Boolean} isRight\n   * @return {Number}\n   */\n  _getSelectionForOffset: function(e, isRight) {\n    if (e.shiftKey && this.selectionStart !== this.selectionEnd && isRight) {\n      return this.selectionEnd;\n    }\n    else {\n      return this.selectionStart;\n    }\n  },\n\n  /**\n   * @param {Event} e Event object\n   * @param {Boolean} isRight\n   * @return {Number}\n   */\n  getUpCursorOffset: function(e, isRight) {\n    var selectionProp = this._getSelectionForOffset(e, isRight),\n        cursorLocation = this.get2DCursorLocation(selectionProp),\n        lineIndex = cursorLocation.lineIndex;\n    if (lineIndex === 0 || e.metaKey || e.keyCode === 33) {\n      // if on first line, up cursor goes to start of line\n      return -selectionProp;\n    }\n    var charIndex = cursorLocation.charIndex,\n        widthBeforeCursor = this._getWidthBeforeCursor(lineIndex, charIndex),\n        indexOnOtherLine = this._getIndexOnLine(lineIndex - 1, widthBeforeCursor),\n        textBeforeCursor = this._textLines[lineIndex].slice(0, charIndex),\n        missingNewlineOffset = this.missingNewlineOffset(lineIndex - 1);\n    // return a negative offset\n    return -this._textLines[lineIndex - 1].length\n     + indexOnOtherLine - textBeforeCursor.length + (1 - missingNewlineOffset);\n  },\n\n  /**\n   * for a given width it founds the matching character.\n   * @private\n   */\n  _getIndexOnLine: function(lineIndex, width) {\n\n    var line = this._textLines[lineIndex],\n        lineLeftOffset = this._getLineLeftOffset(lineIndex),\n        widthOfCharsOnLine = lineLeftOffset,\n        indexOnLine = 0, charWidth, foundMatch;\n\n    for (var j = 0, jlen = line.length; j < jlen; j++) {\n      charWidth = this.__charBounds[lineIndex][j].width;\n      widthOfCharsOnLine += charWidth;\n      if (widthOfCharsOnLine > width) {\n        foundMatch = true;\n        var leftEdge = widthOfCharsOnLine - charWidth,\n            rightEdge = widthOfCharsOnLine,\n            offsetFromLeftEdge = Math.abs(leftEdge - width),\n            offsetFromRightEdge = Math.abs(rightEdge - width);\n\n        indexOnLine = offsetFromRightEdge < offsetFromLeftEdge ? j : (j - 1);\n        break;\n      }\n    }\n\n    // reached end\n    if (!foundMatch) {\n      indexOnLine = line.length - 1;\n    }\n\n    return indexOnLine;\n  },\n\n\n  /**\n   * Moves cursor down\n   * @param {Event} e Event object\n   */\n  moveCursorDown: function(e) {\n    if (this.selectionStart >= this._text.length && this.selectionEnd >= this._text.length) {\n      return;\n    }\n    this._moveCursorUpOrDown('Down', e);\n  },\n\n  /**\n   * Moves cursor up\n   * @param {Event} e Event object\n   */\n  moveCursorUp: function(e) {\n    if (this.selectionStart === 0 && this.selectionEnd === 0) {\n      return;\n    }\n    this._moveCursorUpOrDown('Up', e);\n  },\n\n  /**\n   * Moves cursor up or down, fires the events\n   * @param {String} direction 'Up' or 'Down'\n   * @param {Event} e Event object\n   */\n  _moveCursorUpOrDown: function(direction, e) {\n    // getUpCursorOffset\n    // getDownCursorOffset\n    var action = 'get' + direction + 'CursorOffset',\n        offset = this[action](e, this._selectionDirection === 'right');\n    if (e.shiftKey) {\n      this.moveCursorWithShift(offset);\n    }\n    else {\n      this.moveCursorWithoutShift(offset);\n    }\n    if (offset !== 0) {\n      this.setSelectionInBoundaries();\n      this.abortCursorAnimation();\n      this._currentCursorOpacity = 1;\n      this.initDelayedCursor();\n      this._fireSelectionChanged();\n      this._updateTextarea();\n    }\n  },\n\n  /**\n   * Moves cursor with shift\n   * @param {Number} offset\n   */\n  moveCursorWithShift: function(offset) {\n    var newSelection = this._selectionDirection === 'left'\n      ? this.selectionStart + offset\n      : this.selectionEnd + offset;\n    this.setSelectionStartEndWithShift(this.selectionStart, this.selectionEnd, newSelection);\n    return offset !== 0;\n  },\n\n  /**\n   * Moves cursor up without shift\n   * @param {Number} offset\n   */\n  moveCursorWithoutShift: function(offset) {\n    if (offset < 0) {\n      this.selectionStart += offset;\n      this.selectionEnd = this.selectionStart;\n    }\n    else {\n      this.selectionEnd += offset;\n      this.selectionStart = this.selectionEnd;\n    }\n    return offset !== 0;\n  },\n\n  /**\n   * Moves cursor left\n   * @param {Event} e Event object\n   */\n  moveCursorLeft: function(e) {\n    if (this.selectionStart === 0 && this.selectionEnd === 0) {\n      return;\n    }\n    this._moveCursorLeftOrRight('Left', e);\n  },\n\n  /**\n   * @private\n   * @return {Boolean} true if a change happened\n   */\n  _move: function(e, prop, direction) {\n    var newValue;\n    if (e.altKey) {\n      newValue = this['findWordBoundary' + direction](this[prop]);\n    }\n    else if (e.metaKey || e.keyCode === 35 ||  e.keyCode === 36 ) {\n      newValue = this['findLineBoundary' + direction](this[prop]);\n    }\n    else {\n      this[prop] += direction === 'Left' ? -1 : 1;\n      return true;\n    }\n    if (typeof newValue !== undefined && this[prop] !== newValue) {\n      this[prop] = newValue;\n      return true;\n    }\n  },\n\n  /**\n   * @private\n   */\n  _moveLeft: function(e, prop) {\n    return this._move(e, prop, 'Left');\n  },\n\n  /**\n   * @private\n   */\n  _moveRight: function(e, prop) {\n    return this._move(e, prop, 'Right');\n  },\n\n  /**\n   * Moves cursor left without keeping selection\n   * @param {Event} e\n   */\n  moveCursorLeftWithoutShift: function(e) {\n    var change = true;\n    this._selectionDirection = 'left';\n\n    // only move cursor when there is no selection,\n    // otherwise we discard it, and leave cursor on same place\n    if (this.selectionEnd === this.selectionStart && this.selectionStart !== 0) {\n      change = this._moveLeft(e, 'selectionStart');\n\n    }\n    this.selectionEnd = this.selectionStart;\n    return change;\n  },\n\n  /**\n   * Moves cursor left while keeping selection\n   * @param {Event} e\n   */\n  moveCursorLeftWithShift: function(e) {\n    if (this._selectionDirection === 'right' && this.selectionStart !== this.selectionEnd) {\n      return this._moveLeft(e, 'selectionEnd');\n    }\n    else if (this.selectionStart !== 0){\n      this._selectionDirection = 'left';\n      return this._moveLeft(e, 'selectionStart');\n    }\n  },\n\n  /**\n   * Moves cursor right\n   * @param {Event} e Event object\n   */\n  moveCursorRight: function(e) {\n    if (this.selectionStart >= this._text.length && this.selectionEnd >= this._text.length) {\n      return;\n    }\n    this._moveCursorLeftOrRight('Right', e);\n  },\n\n  /**\n   * Moves cursor right or Left, fires event\n   * @param {String} direction 'Left', 'Right'\n   * @param {Event} e Event object\n   */\n  _moveCursorLeftOrRight: function(direction, e) {\n    var actionName = 'moveCursor' + direction + 'With';\n    this._currentCursorOpacity = 1;\n\n    if (e.shiftKey) {\n      actionName += 'Shift';\n    }\n    else {\n      actionName += 'outShift';\n    }\n    if (this[actionName](e)) {\n      this.abortCursorAnimation();\n      this.initDelayedCursor();\n      this._fireSelectionChanged();\n      this._updateTextarea();\n    }\n  },\n\n  /**\n   * Moves cursor right while keeping selection\n   * @param {Event} e\n   */\n  moveCursorRightWithShift: function(e) {\n    if (this._selectionDirection === 'left' && this.selectionStart !== this.selectionEnd) {\n      return this._moveRight(e, 'selectionStart');\n    }\n    else if (this.selectionEnd !== this._text.length) {\n      this._selectionDirection = 'right';\n      return this._moveRight(e, 'selectionEnd');\n    }\n  },\n\n  /**\n   * Moves cursor right without keeping selection\n   * @param {Event} e Event object\n   */\n  moveCursorRightWithoutShift: function(e) {\n    var changed = true;\n    this._selectionDirection = 'right';\n\n    if (this.selectionStart === this.selectionEnd) {\n      changed = this._moveRight(e, 'selectionStart');\n      this.selectionEnd = this.selectionStart;\n    }\n    else {\n      this.selectionStart = this.selectionEnd;\n    }\n    return changed;\n  },\n\n  /**\n   * Removes characters from start/end\n   * start/end ar per grapheme position in _text array.\n   *\n   * @param {Number} start\n   * @param {Number} end default to start + 1\n   */\n  removeChars: function(start, end) {\n    if (typeof end === 'undefined') {\n      end = start + 1;\n    }\n    this.removeStyleFromTo(start, end);\n    this._text.splice(start, end - start);\n    this.text = this._text.join('');\n    this.set('dirty', true);\n    if (this._shouldClearDimensionCache()) {\n      this.initDimensions();\n      this.setCoords();\n    }\n    this._removeExtraneousStyles();\n  },\n\n  /**\n   * insert characters at start position, before start position.\n   * start  equal 1 it means the text get inserted between actual grapheme 0 and 1\n   * if style array is provided, it must be as the same length of text in graphemes\n   * if end is provided and is bigger than start, old text is replaced.\n   * start/end ar per grapheme position in _text array.\n   *\n   * @param {String} text text to insert\n   * @param {Array} style array of style objects\n   * @param {Number} start\n   * @param {Number} end default to start + 1\n   */\n  insertChars: function(text, style, start, end) {\n    if (typeof end === 'undefined') {\n      end = start;\n    }\n    if (end > start) {\n      this.removeStyleFromTo(start, end);\n    }\n    var graphemes = fabric.util.string.graphemeSplit(text);\n    this.insertNewStyleBlock(graphemes, start, style);\n    this._text = [].concat(this._text.slice(0, start), graphemes, this._text.slice(end));\n    this.text = this._text.join('');\n    this.set('dirty', true);\n    if (this._shouldClearDimensionCache()) {\n      this.initDimensions();\n      this.setCoords();\n    }\n    this._removeExtraneousStyles();\n  },\n\n});\n\n\n/* _TO_SVG_START_ */\n(function() {\n  var toFixed = fabric.util.toFixed,\n      multipleSpacesRegex = /  +/g;\n\n  fabric.util.object.extend(fabric.Text.prototype, /** @lends fabric.Text.prototype */ {\n\n    /**\n     * Returns SVG representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    _toSVG: function() {\n      var offsets = this._getSVGLeftTopOffsets(),\n          textAndBg = this._getSVGTextAndBg(offsets.textTop, offsets.textLeft);\n      return this._wrapSVGTextAndBg(textAndBg);\n    },\n\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toSVG: function(reviver) {\n      return this._createBaseSVGMarkup(\n        this._toSVG(),\n        { reviver: reviver, noStyle: true, withShadow: true }\n      );\n    },\n\n    /**\n     * @private\n     */\n    _getSVGLeftTopOffsets: function() {\n      return {\n        textLeft: -this.width / 2,\n        textTop: -this.height / 2,\n        lineTop: this.getHeightOfLine(0)\n      };\n    },\n\n    /**\n     * @private\n     */\n    _wrapSVGTextAndBg: function(textAndBg) {\n      var noShadow = true,\n          textDecoration = this.getSvgTextDecoration(this);\n      return [\n        textAndBg.textBgRects.join(''),\n        '\\t\\t<text xml:space=\"preserve\" ',\n        (this.fontFamily ? 'font-family=\"' + this.fontFamily.replace(/\"/g, '\\'') + '\" ' : ''),\n        (this.fontSize ? 'font-size=\"' + this.fontSize + '\" ' : ''),\n        (this.fontStyle ? 'font-style=\"' + this.fontStyle + '\" ' : ''),\n        (this.fontWeight ? 'font-weight=\"' + this.fontWeight + '\" ' : ''),\n        (textDecoration ? 'text-decoration=\"' + textDecoration + '\" ' : ''),\n        'style=\"', this.getSvgStyles(noShadow), '\"', this.addPaintOrder(), ' >',\n        textAndBg.textSpans.join(''),\n        '</text>\\n'\n      ];\n    },\n\n    /**\n     * @private\n     * @param {Number} textTopOffset Text top offset\n     * @param {Number} textLeftOffset Text left offset\n     * @return {Object}\n     */\n    _getSVGTextAndBg: function(textTopOffset, textLeftOffset) {\n      var textSpans = [],\n          textBgRects = [],\n          height = textTopOffset, lineOffset;\n      // bounding-box background\n      this._setSVGBg(textBgRects);\n\n      // text and text-background\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        lineOffset = this._getLineLeftOffset(i);\n        if (this.textBackgroundColor || this.styleHas('textBackgroundColor', i)) {\n          this._setSVGTextLineBg(textBgRects, i, textLeftOffset + lineOffset, height);\n        }\n        this._setSVGTextLineText(textSpans, i, textLeftOffset + lineOffset, height);\n        height += this.getHeightOfLine(i);\n      }\n\n      return {\n        textSpans: textSpans,\n        textBgRects: textBgRects\n      };\n    },\n\n    /**\n     * @private\n     */\n    _createTextCharSpan: function(_char, styleDecl, left, top) {\n      var shouldUseWhitespace = _char !== _char.trim() || _char.match(multipleSpacesRegex),\n          styleProps = this.getSvgSpanStyles(styleDecl, shouldUseWhitespace),\n          fillStyles = styleProps ? 'style=\"' + styleProps + '\"' : '',\n          dy = styleDecl.deltaY, dySpan = '',\n          NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n      if (dy) {\n        dySpan = ' dy=\"' + toFixed(dy, NUM_FRACTION_DIGITS) + '\" ';\n      }\n      return [\n        '<tspan x=\"', toFixed(left, NUM_FRACTION_DIGITS), '\" y=\"',\n        toFixed(top, NUM_FRACTION_DIGITS), '\" ', dySpan,\n        fillStyles, '>',\n        fabric.util.string.escapeXml(_char),\n        '</tspan>'\n      ].join('');\n    },\n\n    _setSVGTextLineText: function(textSpans, lineIndex, textLeftOffset, textTopOffset) {\n      // set proper line offset\n      var lineHeight = this.getHeightOfLine(lineIndex),\n          isJustify = this.textAlign.indexOf('justify') !== -1,\n          actualStyle,\n          nextStyle,\n          charsToRender = '',\n          charBox, style,\n          boxWidth = 0,\n          line = this._textLines[lineIndex],\n          timeToRender;\n\n      textTopOffset += lineHeight * (1 - this._fontSizeFraction) / this.lineHeight;\n      for (var i = 0, len = line.length - 1; i <= len; i++) {\n        timeToRender = i === len || this.charSpacing;\n        charsToRender += line[i];\n        charBox = this.__charBounds[lineIndex][i];\n        if (boxWidth === 0) {\n          textLeftOffset += charBox.kernedWidth - charBox.width;\n          boxWidth += charBox.width;\n        }\n        else {\n          boxWidth += charBox.kernedWidth;\n        }\n        if (isJustify && !timeToRender) {\n          if (this._reSpaceAndTab.test(line[i])) {\n            timeToRender = true;\n          }\n        }\n        if (!timeToRender) {\n          // if we have charSpacing, we render char by char\n          actualStyle = actualStyle || this.getCompleteStyleDeclaration(lineIndex, i);\n          nextStyle = this.getCompleteStyleDeclaration(lineIndex, i + 1);\n          timeToRender = this._hasStyleChangedForSvg(actualStyle, nextStyle);\n        }\n        if (timeToRender) {\n          style = this._getStyleDeclaration(lineIndex, i) || { };\n          textSpans.push(this._createTextCharSpan(charsToRender, style, textLeftOffset, textTopOffset));\n          charsToRender = '';\n          actualStyle = nextStyle;\n          textLeftOffset += boxWidth;\n          boxWidth = 0;\n        }\n      }\n    },\n\n    _pushTextBgRect: function(textBgRects, color, left, top, width, height) {\n      var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n      textBgRects.push(\n        '\\t\\t<rect ',\n        this._getFillAttributes(color),\n        ' x=\"',\n        toFixed(left, NUM_FRACTION_DIGITS),\n        '\" y=\"',\n        toFixed(top, NUM_FRACTION_DIGITS),\n        '\" width=\"',\n        toFixed(width, NUM_FRACTION_DIGITS),\n        '\" height=\"',\n        toFixed(height, NUM_FRACTION_DIGITS),\n        '\"></rect>\\n');\n    },\n\n    _setSVGTextLineBg: function(textBgRects, i, leftOffset, textTopOffset) {\n      var line = this._textLines[i],\n          heightOfLine = this.getHeightOfLine(i) / this.lineHeight,\n          boxWidth = 0,\n          boxStart = 0,\n          charBox, currentColor,\n          lastColor = this.getValueOfPropertyAt(i, 0, 'textBackgroundColor');\n      for (var j = 0, jlen = line.length; j < jlen; j++) {\n        charBox = this.__charBounds[i][j];\n        currentColor = this.getValueOfPropertyAt(i, j, 'textBackgroundColor');\n        if (currentColor !== lastColor) {\n          lastColor && this._pushTextBgRect(textBgRects, lastColor, leftOffset + boxStart,\n            textTopOffset, boxWidth, heightOfLine);\n          boxStart = charBox.left;\n          boxWidth = charBox.width;\n          lastColor = currentColor;\n        }\n        else {\n          boxWidth += charBox.kernedWidth;\n        }\n      }\n      currentColor && this._pushTextBgRect(textBgRects, currentColor, leftOffset + boxStart,\n        textTopOffset, boxWidth, heightOfLine);\n    },\n\n    /**\n     * Adobe Illustrator (at least CS5) is unable to render rgba()-based fill values\n     * we work around it by \"moving\" alpha channel into opacity attribute and setting fill's alpha to 1\n     *\n     * @private\n     * @param {*} value\n     * @return {String}\n     */\n    _getFillAttributes: function(value) {\n      var fillColor = (value && typeof value === 'string') ? new fabric.Color(value) : '';\n      if (!fillColor || !fillColor.getSource() || fillColor.getAlpha() === 1) {\n        return 'fill=\"' + value + '\"';\n      }\n      return 'opacity=\"' + fillColor.getAlpha() + '\" fill=\"' + fillColor.setAlpha(1).toRgb() + '\"';\n    },\n\n    /**\n     * @private\n     */\n    _getSVGLineTopOffset: function(lineIndex) {\n      var lineTopOffset = 0, lastHeight = 0;\n      for (var j = 0; j < lineIndex; j++) {\n        lineTopOffset += this.getHeightOfLine(j);\n      }\n      lastHeight = this.getHeightOfLine(j);\n      return {\n        lineTop: lineTopOffset,\n        offset: (this._fontSizeMult - this._fontSizeFraction) * lastHeight / (this.lineHeight * this._fontSizeMult)\n      };\n    },\n\n    /**\n     * Returns styles-string for svg-export\n     * @param {Boolean} skipShadow a boolean to skip shadow filter output\n     * @return {String}\n     */\n    getSvgStyles: function(skipShadow) {\n      var svgStyle = fabric.Object.prototype.getSvgStyles.call(this, skipShadow);\n      return svgStyle + ' white-space: pre;';\n    },\n  });\n})();\n/* _TO_SVG_END_ */\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = {});\n\n  /**\n   * Textbox class, based on IText, allows the user to resize the text rectangle\n   * and wraps lines automatically. Textboxes have their Y scaling locked, the\n   * user can only change width. Height is adjusted automatically based on the\n   * wrapping of lines.\n   * @class fabric.Textbox\n   * @extends fabric.IText\n   * @mixes fabric.Observable\n   * @return {fabric.Textbox} thisArg\n   * @see {@link fabric.Textbox#initialize} for constructor definition\n   */\n  fabric.Textbox = fabric.util.createClass(fabric.IText, fabric.Observable, {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'textbox',\n\n    /**\n     * Minimum width of textbox, in pixels.\n     * @type Number\n     * @default\n     */\n    minWidth: 20,\n\n    /**\n     * Minimum calculated width of a textbox, in pixels.\n     * fixed to 2 so that an empty textbox cannot go to 0\n     * and is still selectable without text.\n     * @type Number\n     * @default\n     */\n    dynamicMinWidth: 2,\n\n    /**\n     * Cached array of text wrapping.\n     * @type Array\n     */\n    __cachedLines: null,\n\n    /**\n     * Override standard Object class values\n     */\n    lockScalingFlip: true,\n\n    /**\n     * Override standard Object class values\n     * Textbox needs this on false\n     */\n    noScaleCache: false,\n\n    /**\n     * Properties which when set cause object to change dimensions\n     * @type Object\n     * @private\n     */\n    _dimensionAffectingProps: fabric.Text.prototype._dimensionAffectingProps.concat('width'),\n\n    /**\n     * Use this regular expression to split strings in breakable lines\n     * @private\n     */\n    _wordJoiners: /[ \\t\\r]/,\n\n    /**\n     * Use this boolean property in order to split strings that have no white space concept.\n     * this is a cheap way to help with chinese/japaense\n     * @type Boolean\n     * @since 2.6.0\n     */\n    splitByGrapheme: false,\n\n    /**\n     * Unlike superclass's version of this function, Textbox does not update\n     * its width.\n     * @private\n     * @override\n     */\n    initDimensions: function() {\n      if (this.__skipDimension) {\n        return;\n      }\n      this.isEditing && this.initDelayedCursor();\n      this.clearContextTop();\n      this._clearCache();\n      // clear dynamicMinWidth as it will be different after we re-wrap line\n      this.dynamicMinWidth = 0;\n      // wrap lines\n      this._styleMap = this._generateStyleMap(this._splitText());\n      // if after wrapping, the width is smaller than dynamicMinWidth, change the width and re-wrap\n      if (this.dynamicMinWidth > this.width) {\n        this._set('width', this.dynamicMinWidth);\n      }\n      if (this.textAlign.indexOf('justify') !== -1) {\n        // once text is measured we need to make space fatter to make justified text.\n        this.enlargeSpaces();\n      }\n      // clear cache and re-calculate height\n      this.height = this.calcTextHeight();\n      this.saveState({ propertySet: '_dimensionAffectingProps' });\n    },\n\n    /**\n     * Generate an object that translates the style object so that it is\n     * broken up by visual lines (new lines and automatic wrapping).\n     * The original text styles object is broken up by actual lines (new lines only),\n     * which is only sufficient for Text / IText\n     * @private\n     */\n    _generateStyleMap: function(textInfo) {\n      var realLineCount     = 0,\n          realLineCharCount = 0,\n          charCount         = 0,\n          map               = {};\n\n      for (var i = 0; i < textInfo.graphemeLines.length; i++) {\n        if (textInfo.graphemeText[charCount] === '\\n' && i > 0) {\n          realLineCharCount = 0;\n          charCount++;\n          realLineCount++;\n        }\n        else if (!this.splitByGrapheme && this._reSpaceAndTab.test(textInfo.graphemeText[charCount]) && i > 0) {\n          // this case deals with space's that are removed from end of lines when wrapping\n          realLineCharCount++;\n          charCount++;\n        }\n\n        map[i] = { line: realLineCount, offset: realLineCharCount };\n\n        charCount += textInfo.graphemeLines[i].length;\n        realLineCharCount += textInfo.graphemeLines[i].length;\n      }\n\n      return map;\n    },\n\n    /**\n     * Returns true if object has a style property or has it on a specified line\n     * @param {Number} lineIndex\n     * @return {Boolean}\n     */\n    styleHas: function(property, lineIndex) {\n      if (this._styleMap && !this.isWrapping) {\n        var map = this._styleMap[lineIndex];\n        if (map) {\n          lineIndex = map.line;\n        }\n      }\n      return fabric.Text.prototype.styleHas.call(this, property, lineIndex);\n    },\n\n    /**\n     * Returns true if object has no styling or no styling in a line\n     * @param {Number} lineIndex , lineIndex is on wrapped lines.\n     * @return {Boolean}\n     */\n    isEmptyStyles: function(lineIndex) {\n      if (!this.styles) {\n        return true;\n      }\n      var offset = 0, nextLineIndex = lineIndex + 1, nextOffset, obj, shouldLimit = false,\n          map = this._styleMap[lineIndex], mapNextLine = this._styleMap[lineIndex + 1];\n      if (map) {\n        lineIndex = map.line;\n        offset = map.offset;\n      }\n      if (mapNextLine) {\n        nextLineIndex = mapNextLine.line;\n        shouldLimit = nextLineIndex === lineIndex;\n        nextOffset = mapNextLine.offset;\n      }\n      obj = typeof lineIndex === 'undefined' ? this.styles : { line: this.styles[lineIndex] };\n      for (var p1 in obj) {\n        for (var p2 in obj[p1]) {\n          if (p2 >= offset && (!shouldLimit || p2 < nextOffset)) {\n            // eslint-disable-next-line no-unused-vars\n            for (var p3 in obj[p1][p2]) {\n              return false;\n            }\n          }\n        }\n      }\n      return true;\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @private\n     */\n    _getStyleDeclaration: function(lineIndex, charIndex) {\n      if (this._styleMap && !this.isWrapping) {\n        var map = this._styleMap[lineIndex];\n        if (!map) {\n          return null;\n        }\n        lineIndex = map.line;\n        charIndex = map.offset + charIndex;\n      }\n      return this.callSuper('_getStyleDeclaration', lineIndex, charIndex);\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {Object} style\n     * @private\n     */\n    _setStyleDeclaration: function(lineIndex, charIndex, style) {\n      var map = this._styleMap[lineIndex];\n      lineIndex = map.line;\n      charIndex = map.offset + charIndex;\n\n      this.styles[lineIndex][charIndex] = style;\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @private\n     */\n    _deleteStyleDeclaration: function(lineIndex, charIndex) {\n      var map = this._styleMap[lineIndex];\n      lineIndex = map.line;\n      charIndex = map.offset + charIndex;\n      delete this.styles[lineIndex][charIndex];\n    },\n\n    /**\n     * probably broken need a fix\n     * Returns the real style line that correspond to the wrapped lineIndex line\n     * Used just to verify if the line does exist or not.\n     * @param {Number} lineIndex\n     * @returns {Boolean} if the line exists or not\n     * @private\n     */\n    _getLineStyle: function(lineIndex) {\n      var map = this._styleMap[lineIndex];\n      return !!this.styles[map.line];\n    },\n\n    /**\n     * Set the line style to an empty object so that is initialized\n     * @param {Number} lineIndex\n     * @param {Object} style\n     * @private\n     */\n    _setLineStyle: function(lineIndex) {\n      var map = this._styleMap[lineIndex];\n      this.styles[map.line] = {};\n    },\n\n    /**\n     * Wraps text using the 'width' property of Textbox. First this function\n     * splits text on newlines, so we preserve newlines entered by the user.\n     * Then it wraps each line using the width of the Textbox by calling\n     * _wrapLine().\n     * @param {Array} lines The string array of text that is split into lines\n     * @param {Number} desiredWidth width you want to wrap to\n     * @returns {Array} Array of lines\n     */\n    _wrapText: function(lines, desiredWidth) {\n      var wrapped = [], i;\n      this.isWrapping = true;\n      for (i = 0; i < lines.length; i++) {\n        wrapped = wrapped.concat(this._wrapLine(lines[i], i, desiredWidth));\n      }\n      this.isWrapping = false;\n      return wrapped;\n    },\n\n    /**\n     * Helper function to measure a string of text, given its lineIndex and charIndex offset\n     * it gets called when charBounds are not available yet.\n     * @param {CanvasRenderingContext2D} ctx\n     * @param {String} text\n     * @param {number} lineIndex\n     * @param {number} charOffset\n     * @returns {number}\n     * @private\n     */\n    _measureWord: function(word, lineIndex, charOffset) {\n      var width = 0, prevGrapheme, skipLeft = true;\n      charOffset = charOffset || 0;\n      for (var i = 0, len = word.length; i < len; i++) {\n        var box = this._getGraphemeBox(word[i], lineIndex, i + charOffset, prevGrapheme, skipLeft);\n        width += box.kernedWidth;\n        prevGrapheme = word[i];\n      }\n      return width;\n    },\n\n    /**\n     * Wraps a line of text using the width of the Textbox and a context.\n     * @param {Array} line The grapheme array that represent the line\n     * @param {Number} lineIndex\n     * @param {Number} desiredWidth width you want to wrap the line to\n     * @param {Number} reservedSpace space to remove from wrapping for custom functionalities\n     * @returns {Array} Array of line(s) into which the given text is wrapped\n     * to.\n     */\n    _wrapLine: function(_line, lineIndex, desiredWidth, reservedSpace) {\n      var lineWidth = 0,\n          splitByGrapheme = this.splitByGrapheme,\n          graphemeLines = [],\n          line = [],\n          // spaces in different languges?\n          words = splitByGrapheme ? fabric.util.string.graphemeSplit(_line) : _line.split(this._wordJoiners),\n          word = '',\n          offset = 0,\n          infix = splitByGrapheme ? '' : ' ',\n          wordWidth = 0,\n          infixWidth = 0,\n          largestWordWidth = 0,\n          lineJustStarted = true,\n          additionalSpace = splitByGrapheme ? 0 : this._getWidthOfCharSpacing(),\n          reservedSpace = reservedSpace || 0;\n      // fix a difference between split and graphemeSplit\n      if (words.length === 0) {\n        words.push([]);\n      }\n      desiredWidth -= reservedSpace;\n      for (var i = 0; i < words.length; i++) {\n        // if using splitByGrapheme words are already in graphemes.\n        word = splitByGrapheme ? words[i] : fabric.util.string.graphemeSplit(words[i]);\n        wordWidth = this._measureWord(word, lineIndex, offset);\n        offset += word.length;\n\n        lineWidth += infixWidth + wordWidth - additionalSpace;\n\n        if (lineWidth >= desiredWidth && !lineJustStarted) {\n          graphemeLines.push(line);\n          line = [];\n          lineWidth = wordWidth;\n          lineJustStarted = true;\n        }\n        else {\n          lineWidth += additionalSpace;\n        }\n\n        if (!lineJustStarted && !splitByGrapheme) {\n          line.push(infix);\n        }\n        line = line.concat(word);\n\n        infixWidth = this._measureWord([infix], lineIndex, offset);\n        offset++;\n        lineJustStarted = false;\n        // keep track of largest word\n        if (wordWidth > largestWordWidth) {\n          largestWordWidth = wordWidth;\n        }\n      }\n\n      i && graphemeLines.push(line);\n\n      if (largestWordWidth + reservedSpace > this.dynamicMinWidth) {\n        this.dynamicMinWidth = largestWordWidth - additionalSpace + reservedSpace;\n      }\n\n      return graphemeLines;\n    },\n\n    /**\n     * Detect if the text line is ended with an hard break\n     * text and itext do not have wrapping, return false\n     * @param {Number} lineIndex text to split\n     * @return {Boolean}\n     */\n    isEndOfWrapping: function(lineIndex) {\n      if (!this._styleMap[lineIndex + 1]) {\n        // is last line, return true;\n        return true;\n      }\n      if (this._styleMap[lineIndex + 1].line !== this._styleMap[lineIndex].line) {\n        // this is last line before a line break, return true;\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Detect if a line has a linebreak and so we need to account for it when moving\n     * and counting style.\n     * @return Number\n     */\n    missingNewlineOffset: function(lineIndex) {\n      if (this.splitByGrapheme) {\n        return this.isEndOfWrapping(lineIndex) ? 1 : 0;\n      }\n      return 1;\n    },\n\n    /**\n    * Gets lines of text to render in the Textbox. This function calculates\n    * text wrapping on the fly every time it is called.\n    * @param {String} text text to split\n    * @returns {Array} Array of lines in the Textbox.\n    * @override\n    */\n    _splitTextIntoLines: function(text) {\n      var newText = fabric.Text.prototype._splitTextIntoLines.call(this, text),\n          graphemeLines = this._wrapText(newText.lines, this.width),\n          lines = new Array(graphemeLines.length);\n      for (var i = 0; i < graphemeLines.length; i++) {\n        lines[i] = graphemeLines[i].join('');\n      }\n      newText.lines = lines;\n      newText.graphemeLines = graphemeLines;\n      return newText;\n    },\n\n    getMinWidth: function() {\n      return Math.max(this.minWidth, this.dynamicMinWidth);\n    },\n\n    _removeExtraneousStyles: function() {\n      var linesToKeep = {};\n      for (var prop in this._styleMap) {\n        if (this._textLines[prop]) {\n          linesToKeep[this._styleMap[prop].line] = 1;\n        }\n      }\n      for (var prop in this.styles) {\n        if (!linesToKeep[prop]) {\n          delete this.styles[prop];\n        }\n      }\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @method toObject\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['minWidth', 'splitByGrapheme'].concat(propertiesToInclude));\n    }\n  });\n\n  /**\n   * Returns fabric.Textbox instance from an object representation\n   * @static\n   * @memberOf fabric.Textbox\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Textbox instance is created\n   */\n  fabric.Textbox.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Textbox', object, callback, 'text');\n  };\n})(typeof exports !== 'undefined' ? exports : this);\n\n","import accordion from '../components/accordion';\nimport {initProductTile} from '../productTileComponent/productTile';\n\nexport {\n    ajaxCall_changeRefinements,\n    ajaxCall_changeExternalRefinements,\n    ajaxCall_clickSortOption,\n    ajaxCall_changeGridView,\n};\n\nfunction genericAjaxCall(url, pushState = true) {\n    if (!url) {\n        console.error('Missing Url in ajax call');\n        return;\n    }\n    $.spinner().start();\n    return new Promise((resolve, reject) => {\n        $.ajax({\n            url: url,\n            data: {\n                selectedUrl: url,\n                page: 0,\n            },\n            method: 'GET',\n            success: function (response) {\n                if (pushState) {\n                    history.pushState({}, '', url);\n                }\n                $.spinner().stop();\n                resolve($(response).clone());\n            },\n            error: function (error) {\n                $.spinner().stop();\n                console.error(error);\n                reject(error);\n            },\n        });\n    });\n}\n\nfunction ajaxCall_changeRefinements(url) {\n    genericAjaxCall(url).then(function (newDom) {\n        var addictionalElementArray = [\n            '.js-plp-refineBar-externalRefinement',\n            '.js-plp-refineBar-sortOptions',\n        ];\n        simpleElementToReplace(newDom, addictionalElementArray);\n        refinementsAccordionToReplace(newDom);\n        productTilesReplace(newDom);\n        refinementsApplied();\n    });\n}\n\nfunction ajaxCall_changeExternalRefinements(url) {\n    return new Promise((resolve) => {\n        genericAjaxCall(url)\n            .then(function (newDom) {\n                var addictionalElementArray = ['.js-plp-refineBar-sortOptions'];\n                simpleElementToReplace(newDom, addictionalElementArray);\n                refinementsAccordionToReplace(newDom);\n                productTilesReplace(newDom);\n                updateExternalRefinement(newDom);\n                resolve(true);\n                refinementsApplied();\n            })\n            .catch(function () {\n                resolve(false);\n            });\n    });\n}\n\nfunction ajaxCall_clickSortOption(url) {\n    return new Promise((resolve) => {\n        genericAjaxCall(url)\n            .then(function (newDom) {\n                var addictionalElementArray = [\n                    '.js-plp-refineBar-externalRefinement',\n                    '.js-cc-wrapper-refineBar-sort-options .js-plp-refineBar-menu',\n                ];\n                simpleElementToReplace(newDom, addictionalElementArray);\n                refinementsAccordionToReplace(newDom);\n                productTilesReplace(newDom);\n                resolve(true);\n                sortingRulesApplied();\n            })\n            .catch(function () {\n                resolve(false);\n            });\n    });\n}\n\nfunction ajaxCall_changeGridView(url) {\n    genericAjaxCall(url).then(function (newDom) {\n        var addictionalElementArray = [\n            '.js-plp-refineBar-externalRefinement',\n            '.js-plp-refineBar-sortOptions',\n        ];\n        simpleElementToReplace(newDom, addictionalElementArray);\n        refinementsAccordionToReplace(newDom);\n        productTilesReplace(newDom);\n    });\n}\n\n// FUNCTION TO REPLACE-UPDATE DOM\nfunction simpleElementToReplace(newDom, addictionalArrayToCleanUp) {\n    var elementToCleanUp = [\n        '.js-plp-refinements-footer',\n        '.js-plp-refineBar-refinementsCount',\n        '.js-plp-refineBar-externalRefinementsCount',\n        '.js-plp-specialRef-container',\n        '.js-plp-pagination',\n    ];\n\n    var elementToReplace = ['.js-plp-refineBar-gridToggle'];\n\n    if (addictionalArrayToCleanUp) {\n        elementToCleanUp = elementToCleanUp.concat(addictionalArrayToCleanUp);\n    }\n    elementToCleanUp.forEach((elem) => {\n        var newBlock = newDom.find(elem).html();\n        if (newBlock) {\n            $(elem).empty().html(newBlock);\n        }\n    });\n\n    elementToReplace.forEach((elem) => {\n        var newBlock = newDom.find(elem);\n        if (newBlock) {\n            $(elem).replaceWith(newBlock);\n        }\n    });\n}\n\nfunction refinementsAccordionToReplace(newDom) {\n    const refinementBody = '.js-plp-refinements-body';\n    const refinementBodyAccordion = '.js-plp-refinements-accordion';\n    const dataRefActive = $('.js-plp-refinements-body-accordionItem.active').data('refinement');\n\n    var newRefinementBody = newDom.find(refinementBody);\n    var newAccordion = newRefinementBody.find(refinementBodyAccordion);\n\n    accordion.setup(newAccordion);\n\n    if (dataRefActive) {\n        var activeAccordion = newAccordion.find(\n            `.js-plp-refinements-body-accordionItem[data-refinement=${dataRefActive}]`\n        );\n        activeAccordion.addClass('active').find('.accordion-content').css('display', 'block');\n    }\n\n    $(refinementBody).replaceWith(newRefinementBody);\n}\n\nfunction productTilesReplace(newDom) {\n    const PRODUCT_GRID = '.js-plp-productGrid';\n    const CLASS_OPEN = 'cc-plp-productGrid_open';\n    const newProductTile = newDom.find(PRODUCT_GRID);\n\n    if (newProductTile.length > 0) {\n        var oldGrid = $(PRODUCT_GRID);\n        if (oldGrid.hasClass(CLASS_OPEN)) {\n            newProductTile.addClass(CLASS_OPEN);\n        }\n        oldGrid.replaceWith(newProductTile);\n        initProductTile();\n    } else {\n        console.error('Error in product tile update');\n    }\n}\n\nfunction updateExternalRefinement(newDom) {\n    const elementToReplace = '.js-plp-refineBar-menu-body_externalRefinement';\n    var newBlock = newDom.find(elementToReplace);\n    if (newBlock) {\n        $(elementToReplace).replaceWith(newBlock);\n    }\n}\n\n// Analytics plp listing events update\nfunction refinementsApplied () {\n    let openRefinementIDs = [];\n    $('.analytics-search-filter').toArray().forEach(refinement => {\n        if ($(refinement).hasClass('cc-plp-refinement-size-button_selected')) {\n            openRefinementIDs.push($(refinement).data('value-id'));\n        }\n    });\n    $('.analytics-search-filter-boolean').toArray().forEach(refinement => {\n        if ($(refinement).is(':checked')) {\n            openRefinementIDs.push($(refinement).data('analytics-name'));\n        }\n    });\n    updateListingForAnalytics(openRefinementIDs.length ? 'filter_applied' : 'listing');\n}\n\nfunction sortingRulesApplied () {\n    let sortingRule = $('.cc-plp-refineBar-menu_sort_active').data('analytics-sorting-rule').replaceAll('-','_');\n    updateListingForAnalytics(sortingRule);\n}\n\nfunction updateListingForAnalytics (listType) {\n    const analyticsItems = $('.analytics-search-results .js-prodTile').find('.analytics.productListingItem').toArray();\n    $('body').trigger('listing:filter_or_sort_applied', {\n        dataArray: analyticsItems,\n        listType: listType,\n    });\n}"],"sourceRoot":""}