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* Copyright Marc J. Schmidt. See the LICENSE file at the top-level\n * directory of this distribution and at\n * https://github.com/marcj/css-element-queries/blob/master/LICENSE.\n */\n(function (root, factory) {\n    if (typeof define === \"function\" && define.amd) {\n        define(['./ResizeSensor.js'], factory);\n    } else if (typeof exports === \"object\") {\n        module.exports = factory(require('./ResizeSensor.js'));\n    } else {\n        root.ElementQueries = factory(root.ResizeSensor);\n        root.ElementQueries.listen();\n    }\n}(typeof window !== 'undefined' ? window : this, function (ResizeSensor) {\n\n    /**\n     *\n     * @type {Function}\n     * @constructor\n     */\n    var ElementQueries = function () {\n        //<style> element with our dynamically created styles\n        var cssStyleElement;\n\n        //all rules found for element queries\n        var allQueries = {};\n\n        //association map to identify which selector belongs to a element from the animationstart event.\n        var idToSelectorMapping = [];\n\n        /**\n         *\n         * @param element\n         * @returns {Number}\n         */\n        function getEmSize(element) {\n            if (!element) {\n                element = document.documentElement;\n            }\n            var fontSize = window.getComputedStyle(element, null).fontSize;\n            return parseFloat(fontSize) || 16;\n        }\n\n        /**\n         * Get element size\n         * @param {HTMLElement} element\n         * @returns {Object} {width, height}\n         */\n        function getElementSize(element) {\n            if (!element.getBoundingClientRect) {\n                return {\n                    width: element.offsetWidth,\n                    height: element.offsetHeight\n                }\n            }\n\n            var rect = element.getBoundingClientRect();\n            return {\n                width: Math.round(rect.width),\n                height: Math.round(rect.height)\n            }\n        }\n\n        /**\n         *\n         * @copyright https://github.com/Mr0grog/element-query/blob/master/LICENSE\n         *\n         * @param {HTMLElement} element\n         * @param {*} value\n         * @returns {*}\n         */\n        function convertToPx(element, value) {\n            var numbers = value.split(/\\d/);\n            var units = numbers[numbers.length - 1];\n            value = parseFloat(value);\n            switch (units) {\n                case \"px\":\n                    return value;\n                case \"em\":\n                    return value * getEmSize(element);\n                case \"rem\":\n                    return value * getEmSize();\n                // Viewport units!\n                // According to http://quirksmode.org/mobile/tableViewport.html\n                // documentElement.clientWidth/Height gets us the most reliable info\n                case \"vw\":\n                    return value * document.documentElement.clientWidth / 100;\n                case \"vh\":\n                    return value * document.documentElement.clientHeight / 100;\n                case \"vmin\":\n                case \"vmax\":\n                    var vw = document.documentElement.clientWidth / 100;\n                    var vh = document.documentElement.clientHeight / 100;\n                    var chooser = Math[units === \"vmin\" ? \"min\" : \"max\"];\n                    return value * chooser(vw, vh);\n                default:\n                    return value;\n                // for now, not supporting physical units (since they are just a set number of px)\n                // or ex/ch (getting accurate measurements is hard)\n            }\n        }\n\n        /**\n         *\n         * @param {HTMLElement} element\n         * @param {String} id\n         * @constructor\n         */\n        function SetupInformation(element, id) {\n            this.element = element;\n            var key, option, elementSize, value, actualValue, attrValues, attrValue, attrName;\n\n            var attributes = ['min-width', 'min-height', 'max-width', 'max-height'];\n\n            /**\n             * Extracts the computed width/height and sets to min/max- attribute.\n             */\n            this.call = function () {\n                // extract current dimensions\n                elementSize = getElementSize(this.element);\n\n                attrValues = {};\n\n                for (key in allQueries[id]) {\n                    if (!allQueries[id].hasOwnProperty(key)) {\n                        continue;\n                    }\n                    option = allQueries[id][key];\n\n                    value = convertToPx(this.element, option.value);\n\n                    actualValue = option.property === 'width' ? elementSize.width : elementSize.height;\n                    attrName = option.mode + '-' + option.property;\n                    attrValue = '';\n\n                    if (option.mode === 'min' && actualValue >= value) {\n                        attrValue += option.value;\n                    }\n\n                    if (option.mode === 'max' && actualValue <= value) {\n                        attrValue += option.value;\n                    }\n\n                    if (!attrValues[attrName]) attrValues[attrName] = '';\n                    if (attrValue && -1 === (' ' + attrValues[attrName] + ' ').indexOf(' ' + attrValue + ' ')) {\n                        attrValues[attrName] += ' ' + attrValue;\n                    }\n                }\n\n                for (var k in attributes) {\n                    if (!attributes.hasOwnProperty(k)) continue;\n\n                    if (attrValues[attributes[k]]) {\n                        this.element.setAttribute(attributes[k], attrValues[attributes[k]].substr(1));\n                    } else {\n                        this.element.removeAttribute(attributes[k]);\n                    }\n                }\n            };\n        }\n\n        /**\n         * @param {HTMLElement} element\n         * @param {Object}      id\n         */\n        function setupElement(element, id) {\n            if (!element.elementQueriesSetupInformation) {\n                element.elementQueriesSetupInformation = new SetupInformation(element, id);\n            }\n\n            if (!element.elementQueriesSensor) {\n                element.elementQueriesSensor = new ResizeSensor(element, function () {\n                    element.elementQueriesSetupInformation.call();\n                });\n            }\n        }\n\n        /**\n         * Stores rules to the selector that should be applied once resized.\n         *\n         * @param {String} selector\n         * @param {String} mode min|max\n         * @param {String} property width|height\n         * @param {String} value\n         */\n        function queueQuery(selector, mode, property, value) {\n            if (typeof(allQueries[selector]) === 'undefined') {\n                allQueries[selector] = [];\n                // add animation to trigger animationstart event, so we know exactly when a element appears in the DOM\n\n                var id = idToSelectorMapping.length;\n                cssStyleElement.innerHTML += '\\n' + selector + ' {animation: 0.1s element-queries;}';\n                cssStyleElement.innerHTML += '\\n' + selector + ' > .resize-sensor {min-width: '+id+'px;}';\n                idToSelectorMapping.push(selector);\n            }\n\n            allQueries[selector].push({\n                mode: mode,\n                property: property,\n                value: value\n            });\n        }\n\n        function getQuery(container) {\n            var query;\n            if (document.querySelectorAll) query = (container) ? container.querySelectorAll.bind(container) : document.querySelectorAll.bind(document);\n            if (!query && 'undefined' !== typeof $$) query = $$;\n            if (!query && 'undefined' !== typeof jQuery) query = jQuery;\n\n            if (!query) {\n                throw 'No document.querySelectorAll, jQuery or Mootools\\'s $$ found.';\n            }\n\n            return query;\n        }\n\n        /**\n         * If animationStart didn't catch a new element in the DOM, we can manually search for it\n         */\n        function findElementQueriesElements(container) {\n            var query = getQuery(container);\n\n            for (var selector in allQueries) if (allQueries.hasOwnProperty(selector)) {\n                // find all elements based on the extract query selector from the element query rule\n                var elements = query(selector, container);\n\n                for (var i = 0, j = elements.length; i < j; i++) {\n                    setupElement(elements[i], selector);\n                }\n            }\n        }\n\n        /**\n         *\n         * @param {HTMLElement} element\n         */\n        function attachResponsiveImage(element) {\n            var children = [];\n            var rules = [];\n            var sources = [];\n            var defaultImageId = 0;\n            var lastActiveImage = -1;\n            var loadedImages = [];\n\n            for (var i in element.children) {\n                if (!element.children.hasOwnProperty(i)) continue;\n\n                if (element.children[i].tagName && element.children[i].tagName.toLowerCase() === 'img') {\n                    children.push(element.children[i]);\n\n                    var minWidth = element.children[i].getAttribute('min-width') || element.children[i].getAttribute('data-min-width');\n                    //var minHeight = element.children[i].getAttribute('min-height') || element.children[i].getAttribute('data-min-height');\n                    var src = element.children[i].getAttribute('data-src') || element.children[i].getAttribute('url');\n\n                    sources.push(src);\n\n                    var rule = {\n                        minWidth: minWidth\n                    };\n\n                    rules.push(rule);\n\n                    if (!minWidth) {\n                        defaultImageId = children.length - 1;\n                        element.children[i].style.display = 'block';\n                    } else {\n                        element.children[i].style.display = 'none';\n                    }\n                }\n            }\n\n            lastActiveImage = defaultImageId;\n\n            function check() {\n                var imageToDisplay = false, i;\n\n                for (i in children) {\n                    if (!children.hasOwnProperty(i)) continue;\n\n                    if (rules[i].minWidth) {\n                        if (element.offsetWidth > rules[i].minWidth) {\n                            imageToDisplay = i;\n                        }\n                    }\n                }\n\n                if (!imageToDisplay) {\n                    //no rule matched, show default\n                    imageToDisplay = defaultImageId;\n                }\n\n                if (lastActiveImage !== imageToDisplay) {\n                    //image change\n\n                    if (!loadedImages[imageToDisplay]) {\n                        //image has not been loaded yet, we need to load the image first in memory to prevent flash of\n                        //no content\n\n                        var image = new Image();\n                        image.onload = function () {\n                            children[imageToDisplay].src = sources[imageToDisplay];\n\n                            children[lastActiveImage].style.display = 'none';\n                            children[imageToDisplay].style.display = 'block';\n\n                            loadedImages[imageToDisplay] = true;\n\n                            lastActiveImage = imageToDisplay;\n                        };\n\n                        image.src = sources[imageToDisplay];\n                    } else {\n                        children[lastActiveImage].style.display = 'none';\n                        children[imageToDisplay].style.display = 'block';\n                        lastActiveImage = imageToDisplay;\n                    }\n                } else {\n                    //make sure for initial check call the .src is set correctly\n                    children[imageToDisplay].src = sources[imageToDisplay];\n                }\n            }\n\n            element.resizeSensorInstance = new ResizeSensor(element, check);\n            check();\n        }\n\n        function findResponsiveImages() {\n            var query = getQuery();\n\n            var elements = query('[data-responsive-image],[responsive-image]');\n            for (var i = 0, j = elements.length; i < j; i++) {\n                attachResponsiveImage(elements[i]);\n            }\n        }\n\n        var regex = /,?[\\s\\t]*([^,\\n]*?)((?:\\[[\\s\\t]*?(?:min|max)-(?:width|height)[\\s\\t]*?[~$\\^]?=[\\s\\t]*?\"[^\"]*?\"[\\s\\t]*?])+)([^,\\n\\s\\{]*)/mgi;\n        var attrRegex = /\\[[\\s\\t]*?(min|max)-(width|height)[\\s\\t]*?[~$\\^]?=[\\s\\t]*?\"([^\"]*?)\"[\\s\\t]*?]/mgi;\n\n        /**\n         * @param {String} css\n         */\n        function extractQuery(css) {\n            var match, smatch, attrs, attrMatch;\n\n            css = css.replace(/'/g, '\"');\n            while (null !== (match = regex.exec(css))) {\n                smatch = match[1] + match[3];\n                attrs = match[2];\n\n                while (null !== (attrMatch = attrRegex.exec(attrs))) {\n                    queueQuery(smatch, attrMatch[1], attrMatch[2], attrMatch[3]);\n                }\n            }\n        }\n\n        /**\n         * @param {CssRule[]|String} rules\n         */\n        function readRules(rules) {\n            var selector = '';\n\n            if (!rules) {\n                return;\n            }\n\n            if ('string' === typeof rules) {\n                rules = rules.toLowerCase();\n                if (-1 !== rules.indexOf('min-width') || -1 !== rules.indexOf('max-width')) {\n                    extractQuery(rules);\n                }\n            } else {\n                for (var i = 0, j = rules.length; i < j; i++) {\n                    if (1 === rules[i].type) {\n                        selector = rules[i].selectorText || rules[i].cssText;\n                        if (-1 !== selector.indexOf('min-height') || -1 !== selector.indexOf('max-height')) {\n                            extractQuery(selector);\n                        } else if (-1 !== selector.indexOf('min-width') || -1 !== selector.indexOf('max-width')) {\n                            extractQuery(selector);\n                        }\n                    } else if (4 === rules[i].type) {\n                        readRules(rules[i].cssRules || rules[i].rules);\n                    } else if (3 === rules[i].type) {\n                        if(rules[i].styleSheet.hasOwnProperty(\"cssRules\")) {\n                            readRules(rules[i].styleSheet.cssRules);\n                        }\n                    }\n                }\n            }\n        }\n\n        var defaultCssInjected = false;\n\n        /**\n         * Searches all css rules and setups the event listener to all elements with element query rules..\n         */\n        this.init = function () {\n            var animationStart = 'animationstart';\n            if (typeof document.documentElement.style['webkitAnimationName'] !== 'undefined') {\n                animationStart = 'webkitAnimationStart';\n            } else if (typeof document.documentElement.style['MozAnimationName'] !== 'undefined') {\n                animationStart = 'mozanimationstart';\n            } else if (typeof document.documentElement.style['OAnimationName'] !== 'undefined') {\n                animationStart = 'oanimationstart';\n            }\n\n            document.body.addEventListener(animationStart, function (e) {\n                var element = e.target;\n                var styles = element && window.getComputedStyle(element, null);\n                var animationName = styles && styles.getPropertyValue('animation-name');\n                var requiresSetup = animationName && (-1 !== animationName.indexOf('element-queries'));\n\n                if (requiresSetup) {\n                    element.elementQueriesSensor = new ResizeSensor(element, function () {\n                        if (element.elementQueriesSetupInformation) {\n                            element.elementQueriesSetupInformation.call();\n                        }\n                    });\n\n                    var sensorStyles = window.getComputedStyle(element.resizeSensor, null);\n                    var id = sensorStyles.getPropertyValue('min-width');\n                    id = parseInt(id.replace('px', ''));\n                    setupElement(e.target, idToSelectorMapping[id]);\n                }\n            });\n\n            if (!defaultCssInjected) {\n                cssStyleElement = document.createElement('style');\n                cssStyleElement.type = 'text/css';\n                cssStyleElement.innerHTML = '[responsive-image] > img, [data-responsive-image] {overflow: hidden; padding: 0; } [responsive-image] > img, [data-responsive-image] > img {width: 100%;}';\n\n                //safari wants at least one rule in keyframes to start working\n                cssStyleElement.innerHTML += '\\n@keyframes element-queries { 0% { visibility: inherit; } }';\n                document.getElementsByTagName('head')[0].appendChild(cssStyleElement);\n                defaultCssInjected = true;\n            }\n\n            for (var i = 0, j = document.styleSheets.length; i < j; i++) {\n                try {\n                    if (document.styleSheets[i].href && 0 === document.styleSheets[i].href.indexOf('file://')) {\n                        console.warn(\"CssElementQueries: unable to parse local css files, \" + document.styleSheets[i].href);\n                    }\n\n                    readRules(document.styleSheets[i].cssRules || document.styleSheets[i].rules || document.styleSheets[i].cssText);\n                } catch (e) {\n                }\n            }\n\n            findResponsiveImages();\n        };\n\n        /**\n         * Go through all collected rules (readRules()) and attach the resize-listener.\n         * Not necessary to call it manually, since we detect automatically when new elements\n         * are available in the DOM. However, sometimes handy for dirty DOM modifications.\n         *\n         * @param {HTMLElement} container only elements of the container are considered (document.body if not set)\n         */\n        this.findElementQueriesElements = function (container) {\n            findElementQueriesElements(container);\n        };\n\n        this.update = function () {\n            this.init();\n        };\n    };\n\n    ElementQueries.update = function () {\n        ElementQueries.instance.update();\n    };\n\n    /**\n     * Removes all sensor and elementquery information from the element.\n     *\n     * @param {HTMLElement} element\n     */\n    ElementQueries.detach = function (element) {\n        if (element.elementQueriesSetupInformation) {\n            //element queries\n            element.elementQueriesSensor.detach();\n            delete element.elementQueriesSetupInformation;\n            delete element.elementQueriesSensor;\n\n        } else if (element.resizeSensorInstance) {\n            //responsive image\n\n            element.resizeSensorInstance.detach();\n            delete element.resizeSensorInstance;\n        }\n    };\n\n    ElementQueries.init = function () {\n        if (!ElementQueries.instance) {\n            ElementQueries.instance = new ElementQueries();\n        }\n\n        ElementQueries.instance.init();\n    };\n\n    var domLoaded = function (callback) {\n        /* Mozilla, Chrome, Opera */\n        if (document.addEventListener) {\n            document.addEventListener('DOMContentLoaded', callback, false);\n        }\n        /* Safari, iCab, Konqueror */\n        else if (/KHTML|WebKit|iCab/i.test(navigator.userAgent)) {\n            var DOMLoadTimer = setInterval(function () {\n                if (/loaded|complete/i.test(document.readyState)) {\n                    callback();\n                    clearInterval(DOMLoadTimer);\n                }\n            }, 10);\n        }\n        /* Other web browsers */\n        else window.onload = callback;\n    };\n\n    ElementQueries.findElementQueriesElements = function (container) {\n        ElementQueries.instance.findElementQueriesElements(container);\n    };\n\n    ElementQueries.listen = function () {\n        domLoaded(ElementQueries.init);\n    };\n\n    return ElementQueries;\n\n}));\n",";;\n\n/**\n * Copyright Marc J. Schmidt. See the LICENSE file at the top-level\n * directory of this distribution and at\n * https://github.com/marcj/css-element-queries/blob/master/LICENSE.\n */\n(function (root, factory) {\n    if (typeof define === \"function\" && define.amd) {\n        define(factory);\n    } else if (typeof exports === \"object\") {\n        module.exports = factory();\n    } else {\n        root.ResizeSensor = factory();\n    }\n}(typeof window !== 'undefined' ? window : this, function () {\n\n    // Make sure it does not throw in a SSR (Server Side Rendering) situation\n    if (typeof window === \"undefined\") {\n        return null;\n    }\n    // https://github.com/Semantic-Org/Semantic-UI/issues/3855\n    // https://github.com/marcj/css-element-queries/issues/257\n    var globalWindow = typeof window != 'undefined' && window.Math == Math\n        ? window\n        : typeof self != 'undefined' && self.Math == Math\n            ? self\n            : Function('return this')();\n    // Only used for the dirty checking, so the event callback count is limited to max 1 call per fps per sensor.\n    // In combination with the event based resize sensor this saves cpu time, because the sensor is too fast and\n    // would generate too many unnecessary events.\n    var requestAnimationFrame = globalWindow.requestAnimationFrame ||\n        globalWindow.mozRequestAnimationFrame ||\n        globalWindow.webkitRequestAnimationFrame ||\n        function (fn) {\n            return globalWindow.setTimeout(fn, 20);\n        };\n\n    var cancelAnimationFrame = globalWindow.cancelAnimationFrame ||\n        globalWindow.mozCancelAnimationFrame ||\n        globalWindow.webkitCancelAnimationFrame ||\n        function (timer) {\n            globalWindow.clearTimeout(timer);\n        };\n\n    /**\n     * Iterate over each of the provided element(s).\n     *\n     * @param {HTMLElement|HTMLElement[]} elements\n     * @param {Function}                  callback\n     */\n    function forEachElement(elements, callback){\n        var elementsType = Object.prototype.toString.call(elements);\n        var isCollectionTyped = ('[object Array]' === elementsType\n            || ('[object NodeList]' === elementsType)\n            || ('[object HTMLCollection]' === elementsType)\n            || ('[object Object]' === elementsType)\n            || ('undefined' !== typeof jQuery && elements instanceof jQuery) //jquery\n            || ('undefined' !== typeof Elements && elements instanceof Elements) //mootools\n        );\n        var i = 0, j = elements.length;\n        if (isCollectionTyped) {\n            for (; i < j; i++) {\n                callback(elements[i]);\n            }\n        } else {\n            callback(elements);\n        }\n    }\n\n    /**\n    * Get element size\n    * @param {HTMLElement} element\n    * @returns {Object} {width, height}\n    */\n    function getElementSize(element) {\n        if (!element.getBoundingClientRect) {\n            return {\n                width: element.offsetWidth,\n                height: element.offsetHeight\n            }\n        }\n\n        var rect = element.getBoundingClientRect();\n        return {\n            width: Math.round(rect.width),\n            height: Math.round(rect.height)\n        }\n    }\n\n    /**\n     * Apply CSS styles to element.\n     *\n     * @param {HTMLElement} element\n     * @param {Object} style\n     */\n    function setStyle(element, style) {\n        Object.keys(style).forEach(function(key) {\n            element.style[key] = style[key];\n        });\n    }\n\n    /**\n     * Class for dimension change detection.\n     *\n     * @param {Element|Element[]|Elements|jQuery} element\n     * @param {Function} callback\n     *\n     * @constructor\n     */\n    var ResizeSensor = function(element, callback) {\n        //Is used when checking in reset() only for invisible elements\n        var lastAnimationFrameForInvisibleCheck = 0;\n\n        /**\n         *\n         * @constructor\n         */\n        function EventQueue() {\n            var q = [];\n            this.add = function(ev) {\n                q.push(ev);\n            };\n\n            var i, j;\n            this.call = function(sizeInfo) {\n                for (i = 0, j = q.length; i < j; i++) {\n                    q[i].call(this, sizeInfo);\n                }\n            };\n\n            this.remove = function(ev) {\n                var newQueue = [];\n                for(i = 0, j = q.length; i < j; i++) {\n                    if(q[i] !== ev) newQueue.push(q[i]);\n                }\n                q = newQueue;\n            };\n\n            this.length = function() {\n                return q.length;\n            }\n        }\n\n        /**\n         *\n         * @param {HTMLElement} element\n         * @param {Function}    resized\n         */\n        function attachResizeEvent(element, resized) {\n            if (!element) return;\n            if (element.resizedAttached) {\n                element.resizedAttached.add(resized);\n                return;\n            }\n\n            element.resizedAttached = new EventQueue();\n            element.resizedAttached.add(resized);\n\n            element.resizeSensor = document.createElement('div');\n            element.resizeSensor.dir = 'ltr';\n            element.resizeSensor.className = 'resize-sensor';\n\n            var style = {\n                pointerEvents: 'none',\n                position: 'absolute',\n                left: '0px',\n                top: '0px',\n                right: '0px',\n                bottom: '0px',\n                overflow: 'hidden',\n                zIndex: '-1',\n                visibility: 'hidden',\n                maxWidth: '100%'\n            };\n            var styleChild = {\n                position: 'absolute',\n                left: '0px',\n                top: '0px',\n                transition: '0s',\n            };\n\n            setStyle(element.resizeSensor, style);\n\n            var expand = document.createElement('div');\n            expand.className = 'resize-sensor-expand';\n            setStyle(expand, style);\n\n            var expandChild = document.createElement('div');\n            setStyle(expandChild, styleChild);\n            expand.appendChild(expandChild);\n\n            var shrink = document.createElement('div');\n            shrink.className = 'resize-sensor-shrink';\n            setStyle(shrink, style);\n\n            var shrinkChild = document.createElement('div');\n            setStyle(shrinkChild, styleChild);\n            setStyle(shrinkChild, { width: '200%', height: '200%' });\n            shrink.appendChild(shrinkChild);\n\n            element.resizeSensor.appendChild(expand);\n            element.resizeSensor.appendChild(shrink);\n            element.appendChild(element.resizeSensor);\n\n            var computedStyle = window.getComputedStyle(element);\n            var position = computedStyle ? computedStyle.getPropertyValue('position') : null;\n            if ('absolute' !== position && 'relative' !== position && 'fixed' !== position && 'sticky' !== position) {\n                element.style.position = 'relative';\n            }\n\n            var dirty = false;\n\n            //last request animation frame id used in onscroll event\n            var rafId = 0;\n            var size = getElementSize(element);\n            var lastWidth = 0;\n            var lastHeight = 0;\n            var initialHiddenCheck = true;\n            lastAnimationFrameForInvisibleCheck = 0;\n\n            var resetExpandShrink = function () {\n                var width = element.offsetWidth;\n                var height = element.offsetHeight;\n\n                expandChild.style.width = (width + 10) + 'px';\n                expandChild.style.height = (height + 10) + 'px';\n\n                expand.scrollLeft = width + 10;\n                expand.scrollTop = height + 10;\n\n                shrink.scrollLeft = width + 10;\n                shrink.scrollTop = height + 10;\n            };\n\n            var reset = function() {\n                // Check if element is hidden\n                if (initialHiddenCheck) {\n                    var invisible = element.offsetWidth === 0 && element.offsetHeight === 0;\n                    if (invisible) {\n                        // Check in next frame\n                        if (!lastAnimationFrameForInvisibleCheck){\n                            lastAnimationFrameForInvisibleCheck = requestAnimationFrame(function(){\n                                lastAnimationFrameForInvisibleCheck = 0;\n                                reset();\n                            });\n                        }\n\n                        return;\n                    } else {\n                        // Stop checking\n                        initialHiddenCheck = false;\n                    }\n                }\n\n                resetExpandShrink();\n            };\n            element.resizeSensor.resetSensor = reset;\n\n            var onResized = function() {\n                rafId = 0;\n\n                if (!dirty) return;\n\n                lastWidth = size.width;\n                lastHeight = size.height;\n\n                if (element.resizedAttached) {\n                    element.resizedAttached.call(size);\n                }\n            };\n\n            var onScroll = function() {\n                size = getElementSize(element);\n                dirty = size.width !== lastWidth || size.height !== lastHeight;\n\n                if (dirty && !rafId) {\n                    rafId = requestAnimationFrame(onResized);\n                }\n\n                reset();\n            };\n\n            var addEvent = function(el, name, cb) {\n                if (el.attachEvent) {\n                    el.attachEvent('on' + name, cb);\n                } else {\n                    el.addEventListener(name, cb);\n                }\n            };\n\n            addEvent(expand, 'scroll', onScroll);\n            addEvent(shrink, 'scroll', onScroll);\n\n            // Fix for custom Elements and invisible elements\n            lastAnimationFrameForInvisibleCheck = requestAnimationFrame(function(){\n                lastAnimationFrameForInvisibleCheck = 0;\n                reset();\n            });\n        }\n\n        forEachElement(element, function(elem){\n            attachResizeEvent(elem, callback);\n        });\n\n        this.detach = function(ev) {\n            // clean up the unfinished animation frame to prevent a potential endless requestAnimationFrame of reset\n            if (!lastAnimationFrameForInvisibleCheck) {\n                cancelAnimationFrame(lastAnimationFrameForInvisibleCheck);\n                lastAnimationFrameForInvisibleCheck = 0;\n            }\n            ResizeSensor.detach(element, ev);\n        };\n\n        this.reset = function() {\n            element.resizeSensor.resetSensor();\n        };\n    };\n\n    ResizeSensor.reset = function(element) {\n        forEachElement(element, function(elem){\n            elem.resizeSensor.resetSensor();\n        });\n    };\n\n    ResizeSensor.detach = function(element, ev) {\n        forEachElement(element, function(elem){\n            if (!elem) return;\n            if(elem.resizedAttached && typeof ev === \"function\"){\n                elem.resizedAttached.remove(ev);\n                if(elem.resizedAttached.length()) return;\n            }\n            if (elem.resizeSensor) {\n                if (elem.contains(elem.resizeSensor)) {\n                    elem.removeChild(elem.resizeSensor);\n                }\n                delete elem.resizeSensor;\n                delete elem.resizedAttached;\n            }\n        });\n    };\n\n    if (typeof MutationObserver !== \"undefined\") {\n        var observer = new MutationObserver(function (mutations) {\n            for (var i in mutations) {\n                if (mutations.hasOwnProperty(i)) {\n                    var items = mutations[i].addedNodes;\n                    for (var j = 0; j < items.length; j++) {\n                        if (items[j].resizeSensor) {\n                            ResizeSensor.reset(items[j]);\n                        }\n                    }\n                }\n            }\n        });\n\n        document.addEventListener(\"DOMContentLoaded\", function (event) {\n            observer.observe(document.body, {\n                childList: true,\n                subtree: true,\n            });\n        });\n    }\n\n    return ResizeSensor;\n\n}));\n"]}