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const defaultWidths = {\r\n\tsm: 768,\r\n\tmd: 1024,\r\n\tlg: 1280,\r\n\txl: 1400\r\n};\r\n\r\n// getBreakpoint :: Void -> String\r\nexport const getBreakpoint = () =>\r\n\twindow\r\n\t\t.getComputedStyle(document.querySelector('body'), ':before')\r\n\t\t.getPropertyValue('content')\r\n\t\t.replace(/\"/g, '');\r\n\r\n// function :: String -> ?Object -> Boolean\r\nexport function screenSmallerThan(size, widths = defaultWidths) {\r\n\tif (!Object.prototype.hasOwnProperty.call(widths, size)) {\r\n\t\tthrow new Error(`size must be one of: ${Object.keys(widths).join(', ')}`);\r\n\t}\r\n\treturn window.innerWidth < widths[size];\r\n}\r\n\r\nexport function screenGreatOrEqualTo(size, widths = defaultWidths) {\r\n\tif (!Object.prototype.hasOwnProperty.call(widths, size)) {\r\n\t\tthrow new Error(`size must be one of: ${Object.keys(widths).join(', ')}`);\r\n\t}\r\n\treturn window.innerWidth >= widths[size];\r\n}\r\n","// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n    throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n    throw new Error('clearTimeout has not been defined');\n}\n(function () {\n    try {\n        if (typeof setTimeout === 'function') {\n            cachedSetTimeout = setTimeout;\n        } else {\n            cachedSetTimeout = defaultSetTimout;\n        }\n    } catch (e) {\n        cachedSetTimeout = defaultSetTimout;\n    }\n    try {\n        if (typeof clearTimeout === 'function') {\n            cachedClearTimeout = clearTimeout;\n        } else {\n            cachedClearTimeout = defaultClearTimeout;\n        }\n    } catch (e) {\n        cachedClearTimeout = defaultClearTimeout;\n    }\n} ())\nfunction runTimeout(fun) {\n    if (cachedSetTimeout === setTimeout) {\n        //normal enviroments in sane situations\n        return setTimeout(fun, 0);\n    }\n    // if setTimeout wasn't available but was latter defined\n    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n        cachedSetTimeout = setTimeout;\n        return setTimeout(fun, 0);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedSetTimeout(fun, 0);\n    } catch(e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n            return cachedSetTimeout.call(null, fun, 0);\n        } catch(e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n            return cachedSetTimeout.call(this, fun, 0);\n        }\n    }\n\n\n}\nfunction runClearTimeout(marker) {\n    if (cachedClearTimeout === clearTimeout) {\n        //normal enviroments in sane situations\n        return clearTimeout(marker);\n    }\n    // if clearTimeout wasn't available but was latter defined\n    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n        cachedClearTimeout = clearTimeout;\n        return clearTimeout(marker);\n    }\n    try {\n        // when when somebody has screwed with setTimeout but no I.E. maddness\n        return cachedClearTimeout(marker);\n    } catch (e){\n        try {\n            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n            return cachedClearTimeout.call(null, marker);\n        } catch (e){\n            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n            // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n            return cachedClearTimeout.call(this, marker);\n        }\n    }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n    if (!draining || !currentQueue) {\n        return;\n    }\n    draining = false;\n    if (currentQueue.length) {\n        queue = currentQueue.concat(queue);\n    } else {\n        queueIndex = -1;\n    }\n    if (queue.length) {\n        drainQueue();\n    }\n}\n\nfunction drainQueue() {\n    if (draining) {\n        return;\n    }\n    var timeout = runTimeout(cleanUpNextTick);\n    draining = true;\n\n    var len = queue.length;\n    while(len) {\n        currentQueue = queue;\n        queue = [];\n        while (++queueIndex < len) {\n            if (currentQueue) {\n                currentQueue[queueIndex].run();\n            }\n        }\n        queueIndex = -1;\n        len = queue.length;\n    }\n    currentQueue = null;\n    draining = false;\n    runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n    var args = new Array(arguments.length - 1);\n    if (arguments.length > 1) {\n        for (var i = 1; i < arguments.length; i++) {\n            args[i - 1] = arguments[i];\n        }\n    }\n    queue.push(new Item(fun, args));\n    if (queue.length === 1 && !draining) {\n        runTimeout(drainQueue);\n    }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n    this.fun = fun;\n    this.array = array;\n}\nItem.prototype.run = function () {\n    this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n    throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n    throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n","import stickyfill from 'stickyfilljs';\r\nimport BaseBehavior from '../../../framework/base/base';\r\nimport { debounce } from '../../../shared/utilities/debounce';\r\nimport { screenSmallerThan } from '../../../shared/utilities/screenSize';\r\n\r\nexport default class StickyBase extends BaseBehavior {\r\n\tconstructor(element) {\r\n\t\tsuper(element);\r\n\t\t// don't run behavior for mobile as glossary bar doesn't show on mobile\r\n\t\tif (window.getComputedStyle(this.element).getPropertyValue('display') === 'none') return;\r\n\r\n\t\tif (\r\n\t\t\t(element.dataset.component === 'onpagenav' && element.dataset.sticky === 'true') ||\r\n\t\t\telement.dataset.component === 'glossary'\r\n\t\t) {\r\n\t\t\tthis.element.style.top = this.calculateStickyTop('down') + 'px';\r\n\t\t\tthis.subscribe('cookie/height/change', () => {\r\n\t\t\t\tthis.element.style.top = this.calculateStickyTop('down') + 'px';\r\n\t\t\t\tstickyfill.refreshAll();\r\n\t\t\t});\r\n\t\t\tthis.stickNavigation(stickyfill);\r\n\t\t\tthis.detectScroll();\r\n\t\t}\r\n\t}\r\n\r\n\tstickNavigation(stickyJS) {\r\n\t\tstickyJS.addOne(this.element);\r\n\t\tstickyJS.forceSticky();\r\n\t}\r\n\r\n\t/**\r\n\t * This function controls the theme changing of OnPageNav\r\n\t * based on the scrolling of the page\r\n\t */\r\n\tdetectScroll() {\r\n\t\tconst megaNav = document.querySelector('.v2-nav');\r\n\t\tconst navigation = document.querySelector('.header__nav');\r\n\r\n\t\tconst handleHorizontalScrollDebounced = debounce(() => {\r\n\t\t\tconst { sessionStorage } = window;\r\n\t\t\tsessionStorage?.removeItem('IsMobileNavigationOpen');\r\n\t\t\tif (this.initialTop === null) {\r\n\t\t\t\tthis.initialTop = this.element.style.top;\r\n\t\t\t}\r\n\t\t\tconst position = window.getComputedStyle(this.element).getPropertyValue('position');\r\n\t\t\tif (position === 'fixed') {\r\n\t\t\t\tif ((megaNav && !megaNav.classList.contains('headroom--pinned')) || navigation) {\r\n\t\t\t\t\tthis.element.style.top = this.calculateStickyTop('down') + 'px';\r\n\t\t\t\t} else {\r\n\t\t\t\t\tthis.calculateStickyTop('up');\r\n\t\t\t\t}\r\n\t\t\t\tthis.publish('position/updated', { value: 'value' });\r\n\t\t\t\tif (screenSmallerThan('sm')) {\r\n\t\t\t\t\tthis.publish('collapse/navigation-mobile');\r\n\t\t\t\t}\r\n\t\t\t\t// send event here\r\n\t\t\t\t// this.isDesktop && this.applyThemeSettings(this.themeSettings, 'value');\r\n\t\t\t} else if (position === 'absolute') {\r\n\t\t\t\tthis.calculateStickyTop('clear');\r\n\t\t\t\tthis.publish('position/updated', { value: 'default' });\r\n\t\t\t\t// send event here\r\n\t\t\t\t// this.isDesktop && this.applyThemeSettings(this.themeSettings, 'default');\r\n\t\t\t}\r\n\t\t}, 1).bind(this);\r\n\r\n\t\twindow.addEventListener('scroll', handleHorizontalScrollDebounced);\r\n\t}\r\n\r\n\t/**\r\n\t * This function calculates the updated top value of OnPageNav/glossary section\r\n\t * based on Cookie disclaimer(if present), Nav Top and Nav Root sections\r\n\t * Param is the direction of scrolling\r\n\t */\r\n\tcalculateStickyTop(direction) {\r\n\t\tif (direction === 'clear') {\r\n\t\t\tthis.element.style.transform = 'translateY(0px)';\r\n\t\t\treturn false;\r\n\t\t}\r\n\r\n\t\tconst cookieDisclaimer = document.querySelector('.v2-cookie-disclaimer--top');\r\n\t\tconst cookieDisclaimerHeight = cookieDisclaimer ? cookieDisclaimer.offsetHeight : 0;\r\n\t\tconst navHeight = document.querySelector('.header__nav')\r\n\t\t\t? this.navigationHeight(direction)\r\n\t\t\t: this.megaNavHeight(direction);\r\n\t\t// consider ESMA and cookie disc height too\r\n\t\treturn navHeight + cookieDisclaimerHeight;\r\n\t}\r\n\r\n\tmegaNavHeight(direction) {\r\n\t\tconst navContainer = document.querySelector('header.v2-nav');\r\n\t\tconst navRoot = navContainer && navContainer.querySelector('.v2-nav__root');\r\n\t\tconst navTop = navContainer && navContainer.querySelector('.v2-nav__top');\r\n\r\n\t\tlet navRootHeight = navRoot ? navRoot.offsetHeight : 0;\r\n\t\tif (direction === 'down') {\r\n\t\t\tthis.element.style.transform = 'translateY(0px)';\r\n\t\t\tif (window.innerWidth < 1200) {\r\n\t\t\t\tnavRootHeight = 0;\r\n\t\t\t}\r\n\t\t}\r\n\t\tconst finalHeight = navRootHeight;\r\n\t\tif (direction === 'up') {\r\n\t\t\tlet height = navTop ? navTop.offsetHeight : 0;\r\n\t\t\tif (window.innerWidth < 1200) {\r\n\t\t\t\theight += navRootHeight;\r\n\t\t\t}\r\n\t\t\tthis.element.style.transform = 'translateY(' + height + 'px)';\r\n\t\t\treturn false;\r\n\t\t}\r\n\t\treturn finalHeight;\r\n\t}\r\n\r\n\tnavigationHeight(direction) {\r\n\t\tconst navContainer = document.querySelector('.header__nav');\r\n\t\tconst finalHeight = navContainer.getBoundingClientRect().height;\r\n\t\tif (direction === 'down') {\r\n\t\t\tthis.element.style.transform = 'translateY(0px)';\r\n\t\t}\r\n\t\tif (direction === 'up') {\r\n\t\t\tthis.element.style.transform = `translateY(${finalHeight}px)`;\r\n\t\t}\r\n\r\n\t\treturn finalHeight;\r\n\t}\r\n}\r\n","// debounce :: Function, Number, Bool -> (Any -> Void)\r\nexport function debounce(func, wait, immediate) {\r\n\tlet timeout;\r\n\treturn function debounced(...args) {\r\n\t\tconst later = () => {\r\n\t\t\ttimeout = null;\r\n\t\t\tif (!immediate) func(args);\r\n\t\t};\r\n\t\tconst callNow = immediate && !timeout;\r\n\t\tclearTimeout(timeout);\r\n\t\ttimeout = setTimeout(later, wait);\r\n\t\tif (callNow) func(args);\r\n\t};\r\n}\r\n","class PubSub {\r\n\tconstructor() {\r\n\t\tthis.subscriptions = {};\r\n\t}\r\n\r\n\tpublish(topic, ...args) {\r\n\t\tif (this.subscriptions[topic]) {\r\n\t\t\t// eslint-disable-next-line no-restricted-syntax\r\n\t\t\tfor (const fn of this.subscriptions[topic]) {\r\n\t\t\t\tfn(...args);\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tsubscribe(topic, fn) {\r\n\t\tthis.subscriptions[topic] = this.subscriptions[topic] || [];\r\n\t\tthis.subscriptions[topic].push(fn);\r\n\t}\r\n\r\n\tunsubscribe(topic, fn) {\r\n\t\tif (this.subscriptions[topic]) {\r\n\t\t\tthis.subscriptions[topic].forEach((value, index) => {\r\n\t\t\t\tif (value === fn) {\r\n\t\t\t\t\tthis.subscriptions[topic].splice(index, 1);\r\n\t\t\t\t}\r\n\t\t\t});\r\n\t\t}\r\n\t}\r\n}\r\n\r\nconst pubsub = new PubSub();\r\n\r\nexport default pubsub;\r\n","import pubsub from '../../shared/utilities/pubsub';\r\nimport { generateId } from '../../shared/utilities/id';\r\nimport { camelCaseToDashCase, dashCaseToCamelCase } from '../../shared/utilities/case';\r\nimport { getBreakpoint } from '../../shared/utilities/screenSize';\r\nimport { debounce } from '../../shared/utilities/debounce';\r\n\r\nexport default class BaseBehavior {\r\n\tconstructor(element) {\r\n\t\tthis.element = element;\r\n\t\tthis.state = undefined;\r\n\t\tthis.events = {};\r\n\t\tthis.subscriptions = {};\r\n\t\tthis.behaviorName = camelCaseToDashCase(element.getAttribute('data-behavior'));\r\n\t\tthis.instanceId = generateId();\r\n\t\tthis.attachInstanceId();\r\n\t}\r\n\r\n\tsetState(partialState) {\r\n\t\tObject.keys(partialState).forEach(key => {\r\n\t\t\tif (!{}.hasOwnProperty.call(this.state, key)) {\r\n\t\t\t\tthrow new Error(\r\n\t\t\t\t\t`${this.behaviorName} does not have ${key} on the state object,\r\n\t\t\t\t\tmake sure to define all state properties in the constructor.`\r\n\t\t\t\t);\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tthis.state = { ...(this.state || {}), ...partialState };\r\n\t}\r\n\r\n\tattachInstanceId() {\r\n\t\tthis.element.setAttribute('data-instance', `${this.behaviorName}__${this.instanceId}`);\r\n\t\tthis.element.removeAttribute('data-instance-init');\r\n\t}\r\n\r\n\tinitDomCache() {\r\n\t\tthis.dom = {};\r\n\r\n\t\t// Filter out ref's that embedded in another instance of the same behavior.\r\n\t\tArray.from(this.element.querySelectorAll(`[data-ref^=${this.behaviorName}]`))\r\n\t\t\t.filter(el => el.closest(`[data-behavior*=\"${this.behaviorName}\"]`) === this.element)\r\n\t\t\t.forEach(element => {\r\n\t\t\t\tconst ref = element.getAttribute('data-ref');\r\n\t\t\t\tconst key = dashCaseToCamelCase(ref).split('__')[1];\r\n\r\n\t\t\t\tif (key) {\r\n\t\t\t\t\tthis.dom[key] = element;\r\n\t\t\t\t} else {\r\n\t\t\t\t\tconsole.error(\r\n\t\t\t\t\t\t`Element cannot be cached. Reference \"${ref}\" should have the format \"behavior-name__element-name\"`\r\n\t\t\t\t\t);\r\n\t\t\t\t}\r\n\t\t\t});\r\n\t}\r\n\r\n\tpublishBreakpointOnResize(delay = 250) {\r\n\t\tif (this.breakpoint) return;\r\n\r\n\t\tthis.breakpoint = getBreakpoint();\r\n\t\tthis.publish('SITE.BREAKPOINT', this.breakpoint);\r\n\r\n\t\tconst debouncedGetBreakpoint = debounce(() => {\r\n\t\t\tconst newBreakPoint = getBreakpoint();\r\n\t\t\tif (this.breakpoint !== newBreakPoint) {\r\n\t\t\t\tthis.publish('SITE.BREAKPOINT', newBreakPoint);\r\n\t\t\t\tthis.breakpoint = newBreakPoint;\r\n\t\t\t}\r\n\t\t}, delay);\r\n\r\n\t\twindow.addEventListener('resize', debouncedGetBreakpoint);\r\n\t}\r\n\r\n\taddEventListener(element, event, fn, useCapture = false) {\r\n\t\tif (element) {\r\n\t\t\tthis.events[event] = fn;\r\n\t\t\telement.addEventListener(event.split('.')[0], this.events[event], useCapture);\r\n\t\t}\r\n\t}\r\n\r\n\tremoveEventListener(element, event) {\r\n\t\telement.removeEventListener(event.split('.')[0], this.events[event]);\r\n\t\tthis.events[event] = null;\r\n\t\tdelete this.events[event];\r\n\t}\r\n\r\n\t// eslint-disable-next-line class-methods-use-this\r\n\tpublish(topic, obj) {\r\n\t\tpubsub.publish(topic, obj);\r\n\t}\r\n\r\n\tsubscribe(topic, fn) {\r\n\t\tthis.subscriptions[topic] = fn;\r\n\t\tpubsub.subscribe(topic, fn);\r\n\t}\r\n\r\n\tunsubscribe(topic) {\r\n\t\tpubsub.unsubscribe(topic, this.subscriptions[topic]);\r\n\t\tthis.subscriptions[topic] = null;\r\n\t\tdelete this.subscriptions[topic];\r\n\t}\r\n}\r\n\r\n// Below code is added for fixing scrolling issue on page refresh.\r\nwindow.addEventListener('load', () => {\r\n\tsetTimeout(() => {\r\n\t\tconst navigation = document.querySelector('#navigation');\r\n\t\t// eslint-disable-next-line\r\n\t\tif (navigation && navigation.getBoundingClientRect().bottom === scrollY) {\r\n\t\t\twindow.scroll(0, 0);\r\n\t\t}\r\n\t}, 0);\r\n});\r\n\r\nprocess.on('unhandledRejection', (reason, promise) => {\r\n\t// eslint-disable-next-line no-console\r\n\tconsole.log('Reason for this failure is : ', reason);\r\n\t// eslint-disable-next-line no-console\r\n\tconsole.log('promise is', promise);\r\n\t// Application specific logging, throwing an error, or other logic here\r\n});\r\n","export function camelCaseToDashCase(str: string): string {\r\n\treturn str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\r\n}\r\n\r\nexport function dashCaseToCamelCase(str: string): string {\r\n\treturn str.replace(/\\W+(.)/g, (x, chr) => chr.toUpperCase());\r\n}\r\n","const alphabet = '23456789ABDEGJKMNPQRVWXYZ';\r\n\r\nexport function generateId(length: number = 6): string {\r\n\tlet id:string = '';\r\n\r\n\tfor (let i:number = 0; i < length; i++) {\r\n\t\tid += alphabet.charAt(Math.floor(Math.random() * alphabet.length));\r\n\t}\r\n\r\n\treturn id;\r\n}\r\n","/*!\r\n  * Stickyfill – `position: sticky` polyfill\r\n  * v. 2.1.0 | https://github.com/wilddeer/stickyfill\r\n  * MIT License\r\n  */\r\n\r\n;(function(window, document) {\r\n    'use strict';\r\n    \r\n    /*\r\n     * 1. Check if the browser supports `position: sticky` natively or is too old to run the polyfill.\r\n     *    If either of these is the case set `seppuku` flag. It will be checked later to disable key features\r\n     *    of the polyfill, but the API will remain functional to avoid breaking things.\r\n     */\r\n    \r\n    var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\r\n    \r\n    function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\r\n    \r\n    var seppuku = false;\r\n    \r\n    var isWindowDefined = typeof window !== 'undefined';\r\n    \r\n    // The polyfill can’t function properly without `window` or `window.getComputedStyle`.\r\n    if (!isWindowDefined || !window.getComputedStyle) seppuku = true;\r\n    // Dont’t get in a way if the browser supports `position: sticky` natively.\r\n    else {\r\n            (function () {\r\n                var testNode = document.createElement('div');\r\n    \r\n                if (['', '-webkit-', '-moz-', '-ms-'].some(function (prefix) {\r\n                    try {\r\n                        testNode.style.position = prefix + 'sticky';\r\n                    } catch (e) {}\r\n    \r\n                    return testNode.style.position != '';\r\n                })) seppuku = true;\r\n            })();\r\n        }\r\n    \r\n    /*\r\n     * 2. “Global” vars used across the polyfill\r\n     */\r\n    var isInitialized = false;\r\n    \r\n    // Check if Shadow Root constructor exists to make further checks simpler\r\n    var shadowRootExists = typeof ShadowRoot !== 'undefined';\r\n    \r\n    // Last saved scroll position\r\n    var scroll = {\r\n        top: null,\r\n        left: null\r\n    };\r\n    \r\n    // Array of created Sticky instances\r\n    var stickies = [];\r\n    \r\n    /*\r\n     * 3. Utility functions\r\n     */\r\n    function extend(targetObj, sourceObject) {\r\n        for (var key in sourceObject) {\r\n            if (sourceObject.hasOwnProperty(key)) {\r\n                targetObj[key] = sourceObject[key];\r\n            }\r\n        }\r\n    }\r\n    \r\n    function parseNumeric(val) {\r\n        return parseFloat(val) || 0;\r\n    }\r\n    \r\n    function getDocOffsetTop(node) {\r\n        var docOffsetTop = 0;\r\n    \r\n        while (node) {\r\n            docOffsetTop += node.offsetTop;\r\n            node = node.offsetParent;\r\n        }\r\n    \r\n        return docOffsetTop;\r\n    }\r\n    \r\n    /*\r\n     * 4. Sticky class\r\n     */\r\n    \r\n    var Sticky = function () {\r\n        function Sticky(node) {\r\n            _classCallCheck(this, Sticky);\r\n    \r\n            if (!(node instanceof HTMLElement)) throw new Error('First argument must be HTMLElement');\r\n            if (stickies.some(function (sticky) {\r\n                return sticky._node === node;\r\n            })) throw new Error('Stickyfill is already applied to this node');\r\n    \r\n            this._node = node;\r\n            this._stickyMode = null;\r\n            this._active = false;\r\n    \r\n            stickies.push(this);\r\n    \r\n            this.refresh();\r\n        }\r\n    \r\n        _createClass(Sticky, [{\r\n            key: 'refresh',\r\n            value: function refresh() {\r\n                if (seppuku || this._removed) return;\r\n                if (this._active) this._deactivate();\r\n    \r\n                var node = this._node;\r\n    \r\n                /*\r\n                 * 1. Save node computed props\r\n                 */\r\n                var nodeComputedStyle = getComputedStyle(node);\r\n                var nodeComputedProps = {\r\n                    position: nodeComputedStyle.position,\r\n                    top: nodeComputedStyle.top,\r\n                    display: nodeComputedStyle.display,\r\n                    marginTop: nodeComputedStyle.marginTop,\r\n                    marginBottom: nodeComputedStyle.marginBottom,\r\n                    marginLeft: nodeComputedStyle.marginLeft,\r\n                    marginRight: nodeComputedStyle.marginRight,\r\n                    cssFloat: nodeComputedStyle.cssFloat\r\n                };\r\n    \r\n                /*\r\n                 * 2. Check if the node can be activated\r\n                 */\r\n                if (isNaN(parseFloat(nodeComputedProps.top)) || nodeComputedProps.display == 'table-cell' || nodeComputedProps.display == 'none') return;\r\n    \r\n                this._active = true;\r\n    \r\n                /*\r\n                 * 3. Check if the current node position is `sticky`. If it is, it means that the browser supports sticky positioning,\r\n                 *    but the polyfill was force-enabled. We set the node’s position to `static` before continuing, so that the node\r\n                 *    is in it’s initial position when we gather its params.\r\n                 */\r\n                var originalPosition = node.style.position;\r\n                if (nodeComputedStyle.position == 'sticky' || nodeComputedStyle.position == '-webkit-sticky') node.style.position = 'static';\r\n    \r\n                /*\r\n                 * 4. Get necessary node parameters\r\n                 */\r\n                var referenceNode = node.parentNode;\r\n                var parentNode = shadowRootExists && referenceNode instanceof ShadowRoot ? referenceNode.host : referenceNode;\r\n                var nodeWinOffset = node.getBoundingClientRect();\r\n                var parentWinOffset = parentNode.getBoundingClientRect();\r\n                var parentComputedStyle = getComputedStyle(parentNode);\r\n    \r\n                this._parent = {\r\n                    node: parentNode,\r\n                    styles: {\r\n                        position: parentNode.style.position\r\n                    },\r\n                    offsetHeight: parentNode.offsetHeight\r\n                };\r\n                this._offsetToWindow = {\r\n                    left: nodeWinOffset.left,\r\n                    right: document.documentElement.clientWidth - nodeWinOffset.right\r\n                };\r\n                this._offsetToParent = {\r\n                    top: nodeWinOffset.top - parentWinOffset.top - parseNumeric(parentComputedStyle.borderTopWidth),\r\n                    left: nodeWinOffset.left - parentWinOffset.left - parseNumeric(parentComputedStyle.borderLeftWidth),\r\n                    right: -nodeWinOffset.right + parentWinOffset.right - parseNumeric(parentComputedStyle.borderRightWidth)\r\n                };\r\n                this._styles = {\r\n                    position: originalPosition,\r\n                    top: node.style.top,\r\n                    bottom: node.style.bottom,\r\n                    left: node.style.left,\r\n                    right: node.style.right,\r\n                    width: node.style.width,\r\n                    marginTop: node.style.marginTop,\r\n                    marginLeft: node.style.marginLeft,\r\n                    marginRight: node.style.marginRight\r\n                };\r\n    \r\n                var nodeTopValue = parseNumeric(nodeComputedProps.top);\r\n                this._limits = {\r\n                    start: nodeWinOffset.top + window.pageYOffset - nodeTopValue,\r\n                    end: parentWinOffset.top + window.pageYOffset + parentNode.offsetHeight - parseNumeric(parentComputedStyle.borderBottomWidth) - node.offsetHeight - nodeTopValue - parseNumeric(nodeComputedProps.marginBottom)\r\n                };\r\n    \r\n                /*\r\n                 * 5. Ensure that the node will be positioned relatively to the parent node\r\n                 */\r\n                var parentPosition = parentComputedStyle.position;\r\n    \r\n                if (parentPosition != 'absolute' && parentPosition != 'relative') {\r\n                    parentNode.style.position = 'relative';\r\n                }\r\n    \r\n                /*\r\n                 * 6. Recalc node position.\r\n                 *    It’s important to do this before clone injection to avoid scrolling bug in Chrome.\r\n                 */\r\n                this._recalcPosition();\r\n    \r\n                /*\r\n                 * 7. Create a clone\r\n                 */\r\n                var clone = this._clone = {};\r\n                clone.node = document.createElement('div');\r\n    \r\n                // Apply styles to the clone\r\n                extend(clone.node.style, {\r\n                    width: nodeWinOffset.right - nodeWinOffset.left + 'px',\r\n                    height: nodeWinOffset.bottom - nodeWinOffset.top + 'px',\r\n                    marginTop: nodeComputedProps.marginTop,\r\n                    marginBottom: nodeComputedProps.marginBottom,\r\n                    marginLeft: nodeComputedProps.marginLeft,\r\n                    marginRight: nodeComputedProps.marginRight,\r\n                    cssFloat: nodeComputedProps.cssFloat,\r\n                    padding: 0,\r\n                    border: 0,\r\n                    borderSpacing: 0,\r\n                    fontSize: '1em',\r\n                    position: 'static'\r\n                });\r\n    \r\n                referenceNode.insertBefore(clone.node, node);\r\n                clone.docOffsetTop = getDocOffsetTop(clone.node);\r\n            }\r\n        }, {\r\n            key: '_recalcPosition',\r\n            value: function _recalcPosition() {\r\n                if (!this._active || this._removed) return;\r\n    \r\n                var stickyMode = scroll.top <= this._limits.start ? 'start' : scroll.top >= this._limits.end ? 'end' : 'middle';\r\n    \r\n                if (this._stickyMode == stickyMode) return;\r\n    \r\n                switch (stickyMode) {\r\n                    case 'start':\r\n                        extend(this._node.style, {\r\n                            position: 'absolute',\r\n                            left: this._offsetToParent.left + 'px',\r\n                            right: this._offsetToParent.right + 'px',\r\n                            top: this._offsetToParent.top + 'px',\r\n                            bottom: 'auto',\r\n                            width: 'auto',\r\n                            marginLeft: 0,\r\n                            marginRight: 0,\r\n                            marginTop: 0\r\n                        });\r\n                        break;\r\n    \r\n                    case 'middle':\r\n                        extend(this._node.style, {\r\n                            position: 'fixed',\r\n                            left: this._offsetToWindow.left + 'px',\r\n                            right: this._offsetToWindow.right + 'px',\r\n                            top: this._styles.top,\r\n                            bottom: 'auto',\r\n                            width: 'auto',\r\n                            marginLeft: 0,\r\n                            marginRight: 0,\r\n                            marginTop: 0\r\n                        });\r\n                        break;\r\n    \r\n                    case 'end':\r\n                        extend(this._node.style, {\r\n                            position: 'absolute',\r\n                            left: this._offsetToParent.left + 'px',\r\n                            right: this._offsetToParent.right + 'px',\r\n                            top: 'auto',\r\n                            bottom: 0,\r\n                            width: 'auto',\r\n                            marginLeft: 0,\r\n                            marginRight: 0\r\n                        });\r\n                        break;\r\n                }\r\n    \r\n                this._stickyMode = stickyMode;\r\n            }\r\n        }, {\r\n            key: '_fastCheck',\r\n            value: function _fastCheck() {\r\n                if (!this._active || this._removed) return;\r\n    \r\n                if (Math.abs(getDocOffsetTop(this._clone.node) - this._clone.docOffsetTop) > 1 || Math.abs(this._parent.node.offsetHeight - this._parent.offsetHeight) > 1) this.refresh();\r\n            }\r\n        }, {\r\n            key: '_deactivate',\r\n            value: function _deactivate() {\r\n                var _this = this;\r\n    \r\n                if (!this._active || this._removed) return;\r\n    \r\n                this._clone.node.parentNode.removeChild(this._clone.node);\r\n                delete this._clone;\r\n    \r\n                extend(this._node.style, this._styles);\r\n                delete this._styles;\r\n    \r\n                // Check whether element’s parent node is used by other stickies.\r\n                // If not, restore parent node’s styles.\r\n                if (!stickies.some(function (sticky) {\r\n                    return sticky !== _this && sticky._parent && sticky._parent.node === _this._parent.node;\r\n                })) {\r\n                    extend(this._parent.node.style, this._parent.styles);\r\n                }\r\n                delete this._parent;\r\n    \r\n                this._stickyMode = null;\r\n                this._active = false;\r\n    \r\n                delete this._offsetToWindow;\r\n                delete this._offsetToParent;\r\n                delete this._limits;\r\n            }\r\n        }, {\r\n            key: 'remove',\r\n            value: function remove() {\r\n                var _this2 = this;\r\n    \r\n                this._deactivate();\r\n    \r\n                stickies.some(function (sticky, index) {\r\n                    if (sticky._node === _this2._node) {\r\n                        stickies.splice(index, 1);\r\n                        return true;\r\n                    }\r\n                });\r\n    \r\n                this._removed = true;\r\n            }\r\n        }]);\r\n    \r\n        return Sticky;\r\n    }();\r\n    \r\n    /*\r\n     * 5. Stickyfill API\r\n     */\r\n    \r\n    \r\n    var Stickyfill = {\r\n        stickies: stickies,\r\n        Sticky: Sticky,\r\n    \r\n        forceSticky: function forceSticky() {\r\n            seppuku = false;\r\n            init();\r\n    \r\n            this.refreshAll();\r\n        },\r\n        addOne: function addOne(node) {\r\n            // Check whether it’s a node\r\n            if (!(node instanceof HTMLElement)) {\r\n                // Maybe it’s a node list of some sort?\r\n                // Take first node from the list then\r\n                if (node.length && node[0]) node = node[0];else return;\r\n            }\r\n    \r\n            // Check if Stickyfill is already applied to the node\r\n            // and return existing sticky\r\n            for (var i = 0; i < stickies.length; i++) {\r\n                if (stickies[i]._node === node) return stickies[i];\r\n            }\r\n    \r\n            // Create and return new sticky\r\n            return new Sticky(node);\r\n        },\r\n        add: function add(nodeList) {\r\n            // If it’s a node make an array of one node\r\n            if (nodeList instanceof HTMLElement) nodeList = [nodeList];\r\n            // Check if the argument is an iterable of some sort\r\n            if (!nodeList.length) return;\r\n    \r\n            // Add every element as a sticky and return an array of created Sticky instances\r\n            var addedStickies = [];\r\n    \r\n            var _loop = function _loop(i) {\r\n                var node = nodeList[i];\r\n    \r\n                // If it’s not an HTMLElement – create an empty element to preserve 1-to-1\r\n                // correlation with input list\r\n                if (!(node instanceof HTMLElement)) {\r\n                    addedStickies.push(void 0);\r\n                    return 'continue';\r\n                }\r\n    \r\n                // If Stickyfill is already applied to the node\r\n                // add existing sticky\r\n                if (stickies.some(function (sticky) {\r\n                    if (sticky._node === node) {\r\n                        addedStickies.push(sticky);\r\n                        return true;\r\n                    }\r\n                })) return 'continue';\r\n    \r\n                // Create and add new sticky\r\n                addedStickies.push(new Sticky(node));\r\n            };\r\n    \r\n            for (var i = 0; i < nodeList.length; i++) {\r\n                var _ret2 = _loop(i);\r\n    \r\n                if (_ret2 === 'continue') continue;\r\n            }\r\n    \r\n            return addedStickies;\r\n        },\r\n        refreshAll: function refreshAll() {\r\n            stickies.forEach(function (sticky) {\r\n                return sticky.refresh();\r\n            });\r\n        },\r\n        removeOne: function removeOne(node) {\r\n            // Check whether it’s a node\r\n            if (!(node instanceof HTMLElement)) {\r\n                // Maybe it’s a node list of some sort?\r\n                // Take first node from the list then\r\n                if (node.length && node[0]) node = node[0];else return;\r\n            }\r\n    \r\n            // Remove the stickies bound to the nodes in the list\r\n            stickies.some(function (sticky) {\r\n                if (sticky._node === node) {\r\n                    sticky.remove();\r\n                    return true;\r\n                }\r\n            });\r\n        },\r\n        remove: function remove(nodeList) {\r\n            // If it’s a node make an array of one node\r\n            if (nodeList instanceof HTMLElement) nodeList = [nodeList];\r\n            // Check if the argument is an iterable of some sort\r\n            if (!nodeList.length) return;\r\n    \r\n            // Remove the stickies bound to the nodes in the list\r\n    \r\n            var _loop2 = function _loop2(i) {\r\n                var node = nodeList[i];\r\n    \r\n                stickies.some(function (sticky) {\r\n                    if (sticky._node === node) {\r\n                        sticky.remove();\r\n                        return true;\r\n                    }\r\n                });\r\n            };\r\n    \r\n            for (var i = 0; i < nodeList.length; i++) {\r\n                _loop2(i);\r\n            }\r\n        },\r\n        removeAll: function removeAll() {\r\n            while (stickies.length) {\r\n                stickies[0].remove();\r\n            }\r\n        }\r\n    };\r\n    \r\n    /*\r\n     * 6. Setup events (unless the polyfill was disabled)\r\n     */\r\n    function init() {\r\n        if (isInitialized) {\r\n            return;\r\n        }\r\n    \r\n        isInitialized = true;\r\n    \r\n        // Watch for scroll position changes and trigger recalc/refresh if needed\r\n        function checkScroll() {\r\n            if (window.pageXOffset != scroll.left) {\r\n                scroll.top = window.pageYOffset;\r\n                scroll.left = window.pageXOffset;\r\n    \r\n                Stickyfill.refreshAll();\r\n            } else if (window.pageYOffset != scroll.top) {\r\n                scroll.top = window.pageYOffset;\r\n                scroll.left = window.pageXOffset;\r\n    \r\n                // recalc position for all stickies\r\n                stickies.forEach(function (sticky) {\r\n                    return sticky._recalcPosition();\r\n                });\r\n            }\r\n        }\r\n    \r\n        checkScroll();\r\n        window.addEventListener('scroll', checkScroll);\r\n    \r\n        // Watch for window resizes and device orientation changes and trigger refresh\r\n        window.addEventListener('resize', Stickyfill.refreshAll);\r\n        window.addEventListener('orientationchange', Stickyfill.refreshAll);\r\n    \r\n        //Fast dirty check for layout changes every 500ms\r\n        var fastCheckTimer = void 0;\r\n    \r\n        function startFastCheckTimer() {\r\n            fastCheckTimer = setInterval(function () {\r\n                stickies.forEach(function (sticky) {\r\n                    return sticky._fastCheck();\r\n                });\r\n            }, 500);\r\n        }\r\n    \r\n        function stopFastCheckTimer() {\r\n            clearInterval(fastCheckTimer);\r\n        }\r\n    \r\n        var docHiddenKey = void 0;\r\n        var visibilityChangeEventName = void 0;\r\n    \r\n        if ('hidden' in document) {\r\n            docHiddenKey = 'hidden';\r\n            visibilityChangeEventName = 'visibilitychange';\r\n        } else if ('webkitHidden' in document) {\r\n            docHiddenKey = 'webkitHidden';\r\n            visibilityChangeEventName = 'webkitvisibilitychange';\r\n        }\r\n    \r\n        if (visibilityChangeEventName) {\r\n            if (!document[docHiddenKey]) startFastCheckTimer();\r\n    \r\n            document.addEventListener(visibilityChangeEventName, function () {\r\n                if (document[docHiddenKey]) {\r\n                    stopFastCheckTimer();\r\n                } else {\r\n                    startFastCheckTimer();\r\n                }\r\n            });\r\n        } else startFastCheckTimer();\r\n    }\r\n    \r\n    if (!seppuku) init();\r\n    \r\n    /*\r\n     * 7. Expose Stickyfill\r\n     */\r\n    if (typeof module != 'undefined' && module.exports) {\r\n        module.exports = Stickyfill;\r\n    } else if (isWindowDefined) {\r\n        window.Stickyfill = Stickyfill;\r\n    }\r\n    \r\n})(window, document);"],"sourceRoot":""}