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{ scrollIntoView } from 'scroll-js';\nimport { mediaQuery } from '../../../../global/js/wlc/mediaQuery';\nlet normalizeWheel = require('normalize-wheel');\n\nexport let fixedScrollMixinPage = {\n\tinitFixedScrollMixin: (self, blocks = null) => {\n\t\tself.$element = self.$element || $(self.element);\n\t\tself.$tplScroller = self.$tplScroller || $('.tpl-scroller');\n\t\tself.$tplHeader = self.$tplHeader || $('.tpl-header');\n\t\tself.$tplFooter = self.$tplFooter || $('.tpl-footer');\n\n\t\tlet isScrolling = false; // Flag for scrolling, can’t scroll if set to false\n\t\tlet fixedScroll = self.$element.data('fixed-scroll'); // Attribute to enable / disable fixed scroll\n\t\tlet scrollDuration = 750;\n\t\tlet scrollEasing = 'ease-in-out';\n\t\tlet fixedScrollItems = [];\n\t\tlet fixedScrollActiveItemIndex = 0;\n\t\tlet $sectionFixedScrollContainer = $('[data-section-fixed-scroll-container]');\n\t\tlet $sectionFixedScrollItems = [];\n\n\t\tif(_.isNil(blocks)) {\n\t\t\tblocks = $sectionFixedScrollContainer.children().toArray();\n\t\t}\n\n\t\t// Sets attributes to latch events and styling onto the fixed scroll\n\t\tlet setAttributes = () => {\n\t\t\t// Apply a section-fixed-scroll-item attribute to target against\n\t\t\tfixedScrollItems.forEach((element) => {\n\t\t\t\tif(element === self.$tplFooter[0]) {\n\t\t\t\t\t// Add a fixed scroll event to the footer as this is the only element that is outside the fixed-scroll-container\n\t\t\t\t\t$(element).attr('fixed-scroll-event', '');\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\t// Insert an inner element with the section-fixed-scroll-item attribute\n\t\t\t\t\t// This is because inside the item we a tweaking to a full height\n\t\t\t\t\t$(element).attr('section-fixed-scroll-item', '');\n\t\t\t\t\t$(element).wrapInner('<div section-fixed-scroll-item-inner fixed-scroll-event></div>');\n\t\t\t\t}\n\t\t\t});\n\n\t\t\t$sectionFixedScrollItems = $sectionFixedScrollContainer.find('[section-fixed-scroll-item]');\n\t\t};\n\n\t\t// 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self.$tplScroller[0].clientHeight) {\n\t\t\t\t\t\t\t$fixedScrollItem.css({\n\t\t\t\t\t\t\t\theight: self.$tplScroller[0].clientHeight\n\t\t\t\t\t\t\t});\n\n\t\t\t\t\t\t\t$fixedScrollItemInner.css({\n\t\t\t\t\t\t\t\t'minHeight': '100%',\n\t\t\t\t\t\t\t\t'overflowY': 'scroll',\n\t\t\t\t\t\t\t\t'flex': '1 1 auto'\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\t$fixedScrollItem.css({\n\t\t\t\t\t\t\t\theight: 'initial'\n\t\t\t\t\t\t\t});\n\n\t\t\t\t\t\t\t$fixedScrollItemInner.css({\n\t\t\t\t\t\t\t\tflex: '1 1 auto'\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tself.$tplScroller.css({\n\t\t\t\t\t\toverflowY: 'scroll'\n\t\t\t\t\t});\n\n\t\t\t\t\t$sectionFixedScrollItems.each((index, element) => {\n\t\t\t\t\t\tlet $fixedScrollItem = $(element);\n\t\t\t\t\t\tlet $fixedScrollItemInner = $fixedScrollItem.find(`[section-fixed-scroll-item-inner]`);\n\n\t\t\t\t\t\t$fixedScrollItem.css({\n\t\t\t\t\t\t\theight: 'unset'\n\t\t\t\t\t\t});\n\n\t\t\t\t\t\t$fixedScrollItemInner.css({\n\t\t\t\t\t\t\theight: 'unset',\n\t\t\t\t\t\t\toverflowY: 'unset',\n\t\t\t\t\t\t\tflex: 'unset'\n\t\t\t\t\t\t});\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t$(window).on('resize.fixedScrollMixin', _.debounce(() => {\n\t\t\t\tresizeEvent();\n\t\t\t}, 250, { leading: false, trailing: true }));\n\n\t\t\tsetTimeout(() => {\n\t\t\t\tresizeEvent();\n\t\t\t}, 250);\n\t\t};\n\n\t\t// Sets the default styles for the fixedScrollItems\n\t\tlet setSectionStyles = () => {\n\t\t\t$sectionFixedScrollItems.each((index, element) => {\n\t\t\t\tlet $fixedScrollItem = $(element);\n\t\t\t\tlet $fixedScrollItemInner = $fixedScrollItem.find(`[section-fixed-scroll-item-inner]`);\n\n\t\t\t\t$fixedScrollItem.css({\n\t\t\t\t\twidth: '100%',\n\t\t\t\t\tposition: 'relative'\n\t\t\t\t});\n\n\t\t\t\t$fixedScrollItemInner.css({\n\t\t\t\t\twidth: '100%'\n\t\t\t\t});\n\t\t\t});\n\t\t};\n\n\t\tlet setFixedScrollEvent = () => {\n\t\t\tself.$fixedScrollEvent = $('[fixed-scroll-event]');\n\n\t\t\tlet isElementScrollable = ($element) => {\n\t\t\t\treturn $element.children()[0].clientHeight > self.$tplScroller[0].clientHeight;\n\t\t\t};\n\n\t\t\tlet isElementScrollAtTop = ($element) => {\n\t\t\t\treturn $element[0].scrollTop <= 0;\n\t\t\t};\n\n\t\t\tlet isElementScrollAtBottom = ($element) => {\n\t\t\t\treturn (Math.ceil($element[0].scrollTop) >= ($element[0].scrollHeight - $element[0].offsetHeight));\n\t\t\t};\n\n\t\t\tlet isScrollLocked = ($element) => {\n\t\t\t\treturn $element[0].hasAttribute('fixed-scroll-event-lock');\n\t\t\t};\n\n\t\t\t// Ensure that the active index is the element that is selected to scroll\n\t\t\tlet updateScrolledIndex = ($element) => {\n\t\t\t\tlet scrolledIndex;\n\t\t\t\t// If the selected element is the element before the tplFooter element and the active index is the tplFooter element\n\t\t\t\tif(fixedScrollItems[fixedScrollItems.length - 2] &&\n\t\t\t\t\tfixedScrollItems[fixedScrollItems.length - 2] === $element[0] && (fixedScrollActiveItemIndex === fixedScrollItems.length - 1)) {\n\t\t\t\t\tscrolledIndex = fixedScrollItems.length - 1;\n\t\t\t\t}\n\t\t\t\telse {\n\t\t\t\t\tscrolledIndex = _.findIndex(fixedScrollItems, (fixedScrollElement) => {\n\t\t\t\t\t\tif(fixedScrollElement === self.$tplFooter[0]) {\n\t\t\t\t\t\t\treturn fixedScrollElement === $element[0];\n\t\t\t\t\t\t}\n\t\t\t\t\t\t// Return the current selected element\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\treturn fixedScrollElement === $element.parents('[section-fixed-scroll-item]')[0];\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t}\n\n\t\t\t\tsetFixedScrollActiveItemIndex(scrolledIndex);\n\t\t\t};\n\n\t\t\t// Normal desktop devices scrolling event\n\t\t\tself.$fixedScrollEvent.on('DOMMouseScroll.fixedScrollMixin wheel.fixedScrollMixin scroll.fixedScrollMixin', _.throttle((event) => {\n\t\t\t\tlet pixelThreshold = 5;\n\t\t\t\tif(!mediaQuery.breakpointMaxWidth(mediaQuery.BREAKPOINTS.SM) && !isScrolling) {\n\t\t\t\t\tisScrolling = true;\n\t\t\t\t\tlet nomalizeWheelValue = normalizeWheel(event.originalEvent);\n\t\t\t\t\tlet pixelY = nomalizeWheelValue.pixelY;\n\t\t\t\t\tlet $element = $(event.currentTarget);\n\n\t\t\t\t\t// Prevent scrolling that is triggered in certain elements that have an inner scroll.\n\t\t\t\t\tlet lockScroll = isScrollLocked($element);\n\n\t\t\t\t\tupdateScrolledIndex($element);\n\n\t\t\t\t\tlet isScrollingUp = () => {\n\t\t\t\t\t\treturn pixelY < (pixelThreshold * -1);\n\t\t\t\t\t};\n\n\t\t\t\t\tlet isScrollingDown = () => {\n\t\t\t\t\t\treturn pixelY > pixelThreshold;\n\t\t\t\t\t};\n\n\t\t\t\t\t// There is a scrollable element inside the section\n\t\t\t\t\tif(isElementScrollable($element)) {\n\t\t\t\t\t\t// Scrolled to the top of the section scroll item and the scroll direction is up\n\t\t\t\t\t\tif(isElementScrollAtTop($element) && isScrollingUp() && !lockScroll) {\n\t\t\t\t\t\t\tscrollToPreviousSection();\n\t\t\t\t\t\t}\n\t\t\t\t\t\t// Scrolled to the bottom of the section scroll item and the scroll direction is down\n\t\t\t\t\t\telse if(isElementScrollAtBottom($element) &&\n\t\t\t\t\t\t\tisScrollingDown() && !lockScroll) {\n\t\t\t\t\t\t\tscrollToNextSection();\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tisScrolling = false;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\t// There isn’t a scrollable event inside the section\n\t\t\t\t\telse {\n\t\t\t\t\t\t// Scroll up\n\t\t\t\t\t\tif(isScrollingUp() && !lockScroll) {\n\t\t\t\t\t\t\tscrollToPreviousSection();\n\t\t\t\t\t\t}\n\t\t\t\t\t\t// Scroll down\n\t\t\t\t\t\telse if(isScrollingDown() && !lockScroll) {\n\t\t\t\t\t\t\tscrollToNextSection();\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\tisScrolling = false;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}, 250, { leading: false, trailing: true }));\n\n\t\t\t// Deals with touch devices that don’t trigger scroll events\n\t\t\t(() => {\n\t\t\t\tlet clientY;\n\t\t\t\tlet deltaThreshold = 75;\n\n\t\t\t\tself.$fixedScrollEvent.on('touchstart.fixedScrollMixin',  _.debounce((event) => {\n\t\t\t\t\tclientY = event.touches[0].clientY;\n\t\t\t\t}, 250, { leading: true, trailing: false }));\n\n\t\t\t\tself.$fixedScrollEvent.on('touchend.fixedScrollMixin', _.debounce((event) => {\n\t\t\t\t\tlet deltaY = event.changedTouches[0].clientY - clientY;\n\n\t\t\t\t\tif(!mediaQuery.breakpointMaxWidth(mediaQuery.BREAKPOINTS.SM) && !isScrolling) {\n\t\t\t\t\t\tisScrolling = true;\n\t\t\t\t\t\tlet $element = $(event.currentTarget);\n\n\t\t\t\t\t\t// Prevent scrolling that is triggered in certain elements that have an inner scroll.\n\t\t\t\t\t\tlet lockScroll = isScrollLocked($element);\n\n\t\t\t\t\t\tupdateScrolledIndex($element);\n\n\t\t\t\t\t\tlet isScrollingUp = () => {\n\t\t\t\t\t\t\treturn deltaY > deltaThreshold;\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tlet isScrollingDown = () => {\n\t\t\t\t\t\t\treturn deltaY < (deltaThreshold * -1);\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\t// There is a scrollable element inside the section\n\t\t\t\t\t\tif(isElementScrollable($element)) {\n\t\t\t\t\t\t\t// Scrolled to the top of the section scroll item and the scroll direction is up\n\t\t\t\t\t\t\tif(isElementScrollAtTop($element) && isScrollingUp() && !lockScroll) {\n\t\t\t\t\t\t\t\tscrollToPreviousSection();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t// Scrolled to the bottom of the section scroll item and the scroll direction is down\n\t\t\t\t\t\t\telse if(isElementScrollAtBottom($element) &&\n\t\t\t\t\t\t\t\tisScrollingDown() && !lockScroll) {\n\t\t\t\t\t\t\t\tscrollToNextSection();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\telse {\n\t\t\t\t\t\t\t\tisScrolling = false;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\t// There isn’t a scrollable event inside the section\n\t\t\t\t\t\telse {\n\t\t\t\t\t\t\t// Scroll up\n\t\t\t\t\t\t\tif(isScrollingUp() && !lockScroll) {\n\t\t\t\t\t\t\t\tscrollToPreviousSection();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t// Scroll down\n\t\t\t\t\t\t\telse if(isScrollingDown() && !lockScroll) {\n\t\t\t\t\t\t\t\tscrollToNextSection();\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\telse {\n\t\t\t\t\t\t\t\tisScrolling = false;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}, 250, { leading: false, trailing: true }));\n\t\t\t})();\n\t\t};\n\n\t\tlet setFixedScrollActiveItemIndex = (index) => {\n\t\t\tfixedScrollActiveItemIndex = index;\n\t\t};\n\n\t\tlet setFixedScrollActiveElement = () => {\n\t\t\tfixedScrollItems.forEach((element, index) => {\n\t\t\t\tif(0 >= Math.floor($(element).position().top)) {\n\t\t\t\t\tfixedScrollActiveItemIndex = index;\n\t\t\t\t}\n\t\t\t});\n\n\t\t\t// Deals with footer as an active element index\n\t\t\tlet $lastScrollElement = $(fixedScrollItems[fixedScrollItems.length - 1]);\n\t\t\tif(Math.floor(self.$tplScroller.outerHeight()) >= (Math.floor($lastScrollElement.position().top + $lastScrollElement.outerHeight()) - 1)) {\n\t\t\t\tfixedScrollActiveItemIndex = fixedScrollItems.length - 1;\n\t\t\t}\n\t\t};\n\n\t\t// Animate the scroll only when the oldActiveElementIndex isnt the same as the current activeElementIndex\n\t\t// This fixes the scrollPositioning of each section so that it is seemless\n\t\tlet adjustSectionItemsScrollPosition = (oldElementIndex) => {\n\t\t\tif(oldElementIndex !== fixedScrollActiveItemIndex) {\n\t\t\t\t$sectionFixedScrollItems.each((index, element) => {\n\t\t\t\t\tlet $fixedScrollItemInner = $(element).find(`[section-fixed-scroll-item-inner]`);\n\t\t\t\t\tlet fixedScrollInnerElement = $fixedScrollItemInner[0];\n\t\t\t\t\tif(index < fixedScrollActiveItemIndex) {\n\t\t\t\t\t\t// Scroll this sections scroll to the bottom\n\t\t\t\t\t\tfixedScrollInnerElement.scrollTop = fixedScrollInnerElement.scrollHeight - fixedScrollInnerElement.clientHeight;\n\t\t\t\t\t}\n\t\t\t\t\telse if(index > fixedScrollActiveItemIndex) {\n\t\t\t\t\t\t// Scroll this sections scroll to the top\n\t\t\t\t\t\t$fixedScrollItemInner[0].scrollTop = 0;\n\t\t\t\t\t}\n\t\t\t\t\t// Only scroll the current section when not scrolling\n\t\t\t\t\telse if(!isScrolling) {\n\t\t\t\t\t\tif(oldElementIndex < fixedScrollActiveItemIndex) {\n\t\t\t\t\t\t\t// Scroll this sections scroll to the top when the oldElementIndex is less then the current element index\n\t\t\t\t\t\t\t$fixedScrollItemInner[0].scrollTop = 0;\n\t\t\t\t\t\t}\n\t\t\t\t\t\telse if(oldElementIndex > fixedScrollActiveItemIndex) {\n\t\t\t\t\t\t\t// Scroll this sections scroll to the bottom\n\t\t\t\t\t\t\t$fixedScrollItemInner[0].scrollTop = fixedScrollInnerElement.scrollHeight - fixedScrollInnerElement.clientHeight;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t}\n\t\t};\n\n\t\t// tplScroller is invoked when the sectionNavigator widget is clicked or when the element scroll event in $sectionFixedScrollItems is triggered\n\t\tlet setTplScrollerEvent = () => {\n\t\t\tself.$tplScroller.on('scroll.fixedScrollMixin touchmove.fixedScrollMixin', _.throttle(() => {\n\t\t\t\tlet oldElementIndex = fixedScrollActiveItemIndex;\n\n\t\t\t\t// Trailing duration\n\t\t\t\tsetTimeout(() => {\n\t\t\t\t\tsetFixedScrollActiveElement();\n\t\t\t\t\tadjustSectionItemsScrollPosition(oldElementIndex);\n\t\t\t\t}, scrollDuration);\n\t\t\t}, scrollDuration, { leading: true, trailing: false }));\n\t\t};\n\n\t\tlet scrollToElementIndex = (index) => {\n\t\t\tlet section = fixedScrollItems[index];\n\n\t\t\t// Hide tooltip if exists\n\t\t\tif($('#notepadTooltip').length) {\n\t\t\t\t$('#notepadTooltip').hide();\n\t\t\t}\n\n\t\t\t// Existing scroll into view\n\t\t\tscrollIntoView(section, self.$tplScroller[0], { duration: scrollDuration, easing: scrollEasing }).finally(() => {\n\t\t\t\tsetFixedScrollActiveItemIndex(index);\n\t\t\t\tsetTimeout(() => {\n\t\t\t\t\tisScrolling = false;\n\t\t\t\t}, scrollDuration + 100);\n\t\t\t});\n\t\t};\n\n\t\t// Scrolls to the previous index\n\t\tlet scrollToPreviousSection = () => {\n\t\t\tlet prevElementIndex = fixedScrollActiveItemIndex - 1;\n\n\t\t\tif(prevElementIndex >= 0) {\n\t\t\t\tscrollToElementIndex(prevElementIndex);\n\t\t\t}\n\t\t\t// Edge case for when the footer is displayed\n\t\t\telse if(fixedScrollActiveItemIndex === 0) {\n\t\t\t\tscrollToElementIndex(0);\n\t\t\t}\n\t\t\telse {\n\t\t\t\tisScrolling = false;\n\t\t\t}\n\t\t};\n\n\t\t// Scrolls to the next index\n\t\tlet scrollToNextSection = () => {\n\t\t\tlet nextElementIndex = fixedScrollActiveItemIndex + 1;\n\n\t\t\tif(nextElementIndex <= (fixedScrollItems.length - 1)) {\n\t\t\t\tscrollToElementIndex(nextElementIndex);\n\t\t\t}\n\t\t\telse {\n\t\t\t\tisScrolling = false;\n\t\t\t}\n\t\t};\n\n\t\t// Remove scrolling events when sections are inactive. Deals with courseAssessmentPage where fixedScrollItems are re-instantiated\n\t\tlet unsetEvents = () => {\n\t\t\tself.$tplScroller.off('scroll.fixedScrollMixin touchmove.fixedScrollMixin');\n\n\t\t\tif(self.$fixedScrollEvent &&self. $fixedScrollEvent.length > 0) {\n\t\t\t\tself.$fixedScrollEvent.off('touchstart.fixedScrollMixin touchend.fixedScrollMixin DOMMouseScroll.fixedScrollMixin wheel.fixedScrollMixin scroll.fixedScrollMixin');\n\t\t\t}\n\n\t\t\t$(window).off('resize.fixedScrollMixin');\n\t\t};\n\n\t\tif(blocks.length > 0) {\n\t\t\tfixedScrollItems = [...blocks, self.$tplFooter[0]];\n\n\t\t\tif(fixedScroll) {\n\t\t\t\t// Remove old events\n\t\t\t\tunsetEvents();\n\n\t\t\t\t// Prevents scroll bouncing for Mac devices\n\t\t\t\t$('html').css({\n\t\t\t\t\toverflow: 'hidden'\n\t\t\t\t});\n\n\t\t\t\tself.$tplScroller.css({\n\t\t\t\t\toverflowY: 'hidden'\n\t\t\t\t});\n\t\t\t\t// Deals with targeting alongside overlay.js file. This is then lower priority class than an inline “overflow: hidden !important”.\n\n\t\t\t\tsetAttributes();\n\t\t\t\tsetSectionResizeEvent();\n\t\t\t\tsetSectionStyles();\n\t\t\t\tsetFixedScrollEvent();\n\t\t\t\tsetTplScrollerEvent();\n\t\t\t}\n\t\t}\n\t\telse {\n\t\t\tconsole.error('FixedScrollMixin::Error', 'Please insert a list of element to be used for the FixedScrollMixin');\n\t\t}\n\t},\n};\n","const NS = 'CourseAssessmentPage';\nconst CLS = 'courseAssessmentPage';\n\nimport { scrollTo } from 'scroll-js';\n\nimport { fixedScrollMixinPage } from '../../../pages/mixins/fixedScrollMixinPage/fixedScrollMixinPage';\n\nexport class CourseAssessmentPage {\n    constructor(element) {\n        this.element = element;\n        this.$element = $(this.element);\n        this.$courseAssessmentSectionNavigatorWidget = this.$element.find('[data-wg=\"CourseAssessmentSectionNavigatorWidget\"]');\n        this.$tplScroller = $('.tpl-scroller');\n        this.$siteSubheaderCourseAssessmentWidget = $('.siteSubheaderCourseAssessmentWidget');\n\n        this.scrollDuration = 750;\n        this.scrollEasing = 'ease-in-out';\n        this.$quizBlocks = this.$element.find('.FormStep').children('.FormChoice').children('[class*=\"Block\"]');\n        this.$sections = this.$element.find('.Form__Element.FormStep');\n        this.$form = this.$element.find('form');\n\n        this.sectionActiveIndex = +this.$element.find(`[name=\"__FormCurrentStepIndex\"]`).val();\n        if(_.isNil(this.sectionActiveIndex)) {\n            this.sectionActiveIndex = 0;\n        }\n\n        this.initFixedScroll(this.sectionActiveIndex);\n        this.initAttemptedQuestions();\n\n        this.initPagination();\n    }\n\n    initFixedScroll(activeIndex) {\n        let blocks = this.$sections.eq(activeIndex).children('.FormChoice').children('[class*=\"Block\"]').toArray();\n        let $submitBlock = this.$element.find(`.${CLS}-submit`);\n        if($submitBlock.length > 0) {\n            blocks.push($submitBlock[0]);\n        }\n        this.initFixedScrollMixin(this, blocks);\n    }\n\n    initAttemptedQuestions() {\n        $(document).ready(() => {\n            if(this.$quizBlocks && this.$quizBlocks.length > 0) {\n                let attemptedQuestions = 0;\n\n                this.$quizBlocks.each((index, element) => {\n                    let $element = $(element);\n\n                    // Increments the attempted questions and mark it as attempted\n                    let incrementAttemptedQuestions = () => {\n                        if($element.attr('data-quiz-attempted') !== 'true') {\n                            $element.attr('data-quiz-attempted', true);\n                            this.$siteSubheaderCourseAssessmentWidget.trigger('siteSubheaderCourseAssessmentWidget.quizzes.increment', {});\n                        }\n                    };\n\n                    let $multiChoiceAnswerBlock = $element.find('.multiChoiceAnswerBlock');\n                    $multiChoiceAnswerBlock.on('click', () => {\n                        incrementAttemptedQuestions();\n                    });\n\n                    let $imageSelectAnswerBlock = $element.find('.imageSelectAnswerBlock');\n                    $imageSelectAnswerBlock.on('click', () => {\n                        incrementAttemptedQuestions();\n                    });\n\n                    // Check if there are items already checked in the quiz block\n                    let $checkedItems = $element.find(`input[checked=checked]`);\n                    if($checkedItems && $checkedItems.length > 0) {\n                        // Quiz has already been attempted\n                        $element.attr('data-quiz-attempted', true);\n                        attemptedQuestions++;\n                    }\n                });\n\n                // Deal with setting the intial values\n                this.$siteSubheaderCourseAssessmentWidget.trigger('siteSubheaderCourseAssessmentWidget.quizzes.init', {\n                    totalQuestions: this.$quizBlocks.length,\n                    attemptedQuestions: attemptedQuestions\n                });\n            }\n        });\n    }\n\n    initPagination() {\n        this.$element.find(`.${CLS}-pagination .page-link--previous`).on('click', () => {\n            let previous = this.sectionActiveIndex - 1;\n            if(previous >= 0) {\n                this.setActiveSection(previous);\n            }\n        });\n\n        this.$element.find(`.${CLS}-pagination .page-link--next`).on('click', () => {\n            let next = this.sectionActiveIndex + 1;\n            if(next <= (this.$sections.length - 1)) {\n                this.setActiveSection(next);\n            }\n        });\n    }\n\n    setActiveSection(activeIndex) {\n        this.$courseAssessmentSectionNavigatorWidget.trigger('courseAssessmentSectionNavigatorWidget.activeNavigationSectionIndex.changed', {\n            activeNavigationSectionIndex: activeIndex\n        });\n\n        this.$element.find('.pagination .page-item')\n            .not('.page-item--previous')\n            .not('.page-item--next')\n            .removeClass('active')\n            .eq(activeIndex)\n            .addClass('active');\n\n        this.initFixedScroll(activeIndex);\n        this.sectionActiveIndex = activeIndex;        \n        scrollTo(this.$tplScroller[0], { top: 0, duration: this.scrollDuration, easing: this.scrollEasing });\n    }\n}\n\nObject.assign(CourseAssessmentPage.prototype, fixedScrollMixinPage);","/*!\n  * Scroll-js v2.3.2\n  * https://github.com/mkay581/scroll-js\n  *\n  * Copyright (c) 2019 Mark Kennedy\n  * Licensed under the MIT license\n */\n\n/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation. All rights reserved.\r\nLicensed under the Apache License, Version 2.0 (the \"License\"); you may not use\r\nthis file except in compliance with the License. You may obtain a copy of the\r\nLicense at http://www.apache.org/licenses/LICENSE-2.0\r\n\r\nTHIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\nKIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED\r\nWARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,\r\nMERCHANTABLITY OR NON-INFRINGEMENT.\r\n\r\nSee the Apache Version 2.0 License for specific language governing permissions\r\nand limitations under the License.\r\n***************************************************************************** */\r\n\r\nfunction __awaiter(thisArg, _arguments, P, generator) {\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\n\nfunction scrollTo(el, options = {}) {\r\n    return __awaiter(this, void 0, void 0, function* () {\r\n        if (!(el instanceof Element) && !(el instanceof Window)) {\r\n            throw new Error(`element passed to scrollTo() must be either the window or a DOM element, you passed ${el}!`);\r\n        }\r\n        options = sanitizeScrollOptions(options);\r\n        const scroll = (from, to, prop, startTime, duration = 300, easeFunc, callback) => {\r\n            window.requestAnimationFrame(() => {\r\n                const currentTime = Date.now();\r\n                const time = Math.min(1, (currentTime - startTime) / duration);\r\n                if (from === to) {\r\n                    return callback ? callback() : null;\r\n                }\r\n                setScrollPosition(el, easeFunc(time) * (to - from) + from);\r\n                /* prevent scrolling, if already there, or at end */\r\n                if (time < 1) {\r\n                    scroll(from, to, prop, startTime, duration, easeFunc, callback);\r\n                }\r\n                else if (callback) {\r\n                    callback();\r\n                }\r\n            });\r\n        };\r\n        const currentScrollPosition = getScrollPosition(el);\r\n        const scrollProperty = getScrollPropertyByElement(el);\r\n        return new Promise(resolve => {\r\n            scroll(currentScrollPosition, typeof options.top === 'number'\r\n                ? options.top\r\n                : currentScrollPosition, scrollProperty, Date.now(), options.duration, getEasing(options.easing), resolve);\r\n        });\r\n    });\r\n}\r\nfunction scrollIntoView(element, scroller, options) {\r\n    validateElement(element);\r\n    if (scroller && !(scroller instanceof Element)) {\r\n        options = scroller;\r\n        scroller = undefined;\r\n    }\r\n    const { duration, easing } = sanitizeScrollOptions(options);\r\n    scroller = scroller || utils.getDocument().body;\r\n    let currentContainerScrollYPos = 0;\r\n    let elementScrollYPos = element ? element.offsetTop : 0;\r\n    const document = utils.getDocument();\r\n    // if the container is the document body or document itself, we'll\r\n    // need a different set of coordinates for accuracy\r\n    if (scroller === document.body || scroller === document.documentElement) {\r\n        // using pageYOffset for cross-browser compatibility\r\n        currentContainerScrollYPos = window.pageYOffset;\r\n        // must add containers scroll y position to ensure an absolute value that does not change\r\n        elementScrollYPos =\r\n            element.getBoundingClientRect().top + currentContainerScrollYPos;\r\n    }\r\n    return scrollTo(scroller, {\r\n        top: elementScrollYPos,\r\n        left: 0,\r\n        duration,\r\n        easing\r\n    });\r\n}\r\nfunction validateElement(element) {\r\n    if (element === undefined) {\r\n        const errorMsg = 'The element passed to scrollIntoView() was undefined.';\r\n        throw new Error(errorMsg);\r\n    }\r\n    if (!(element instanceof HTMLElement)) {\r\n        throw new Error(`The element passed to scrollIntoView() must be a valid element. You passed ${element}.`);\r\n    }\r\n}\r\nfunction getScrollPropertyByElement(el) {\r\n    const props = {\r\n        window: {\r\n            y: 'scrollY',\r\n            x: 'scrollX'\r\n        },\r\n        element: {\r\n            y: 'scrollTop',\r\n            x: 'scrollLeft'\r\n        }\r\n    };\r\n    const axis = 'y';\r\n    if (el instanceof Window) {\r\n        return props.window[axis];\r\n    }\r\n    else {\r\n        return props.element[axis];\r\n    }\r\n}\r\nfunction sanitizeScrollOptions(options = {}) {\r\n    if (options.behavior === 'smooth') {\r\n        options.easing = 'ease-in-out';\r\n        options.duration = 300;\r\n    }\r\n    if (options.behavior === 'auto') {\r\n        options.duration = 0;\r\n        options.easing = 'linear';\r\n    }\r\n    return options;\r\n}\r\nfunction getScrollPosition(el) {\r\n    const document = utils.getDocument();\r\n    if (el === document.body ||\r\n        el === document.documentElement ||\r\n        el instanceof Window) {\r\n        return document.body.scrollTop || document.documentElement.scrollTop;\r\n    }\r\n    else {\r\n        return el.scrollTop;\r\n    }\r\n}\r\nfunction setScrollPosition(el, value) {\r\n    const document = utils.getDocument();\r\n    if (el === document.body ||\r\n        el === document.documentElement ||\r\n        el instanceof Window) {\r\n        document.body.scrollTop = value;\r\n        document.documentElement.scrollTop = value;\r\n    }\r\n    else {\r\n        el.scrollTop = value;\r\n    }\r\n}\r\nconst utils = {\r\n    // we're really just exporting this so that tests can mock the document.documentElement\r\n    getDocument() {\r\n        return document;\r\n    }\r\n};\r\nconst easingMap = {\r\n    linear(t) {\r\n        return t;\r\n    },\r\n    'ease-in'(t) {\r\n        return t * t;\r\n    },\r\n    'ease-out'(t) {\r\n        return t * (2 - t);\r\n    },\r\n    'ease-in-out'(t) {\r\n        return t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t;\r\n    }\r\n};\r\nconst getEasing = (easing) => {\r\n    const defaultEasing = 'linear';\r\n    const easeFunc = easingMap[easing || defaultEasing];\r\n    if (!easeFunc) {\r\n        const options = Object.keys(easingMap).join(',');\r\n        throw new Error(`Scroll error: scroller does not support an easing option of \"${easing}\". Supported options are ${options}`);\r\n    }\r\n    return easeFunc;\r\n};\n\nexport { easingMap, scrollIntoView, scrollTo, utils };\n","class MediaQuery {\n\tconstructor() {\n\t\tthis.BREAKPOINTS = {\n\t\t\tXS: 0,\n\t\t\tSM: 576,\n\t\t\tMD: 768,\n\t\t\tLG: 992,\n\t\t\tXL: 1200\n\t\t};\n\t}\n\n\tbreakpointMaxWidth(breakpoint) {\n\t\tlet width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);\n\n\t\tif(_.isFinite(breakpoint)) {\n\t\t\treturn breakpoint > width;\n\t\t}\n\t\tconsole.error(`MediaQuery::Error`, 'Please supply a valid breakpoint');\n\t\treturn false;\n\t}\n}\n\nexport let mediaQuery = new MediaQuery();\n","module.exports = require('./src/normalizeWheel.js');\n","/**\n * Copyright (c) 2015, Facebook, Inc.\n * All rights reserved.\n *\n * This source code is licensed under the BSD-style license found in the\n * LICENSE file in the root directory of this source tree. An additional grant\n * of patent rights can be found in the PATENTS file in the same directory.\n *\n * @providesModule normalizeWheel\n * @typechecks\n */\n\n'use strict';\n\nvar UserAgent_DEPRECATED = require('./UserAgent_DEPRECATED');\n\nvar isEventSupported = require('./isEventSupported');\n\n\n// Reasonable defaults\nvar PIXEL_STEP  = 10;\nvar LINE_HEIGHT = 40;\nvar PAGE_HEIGHT = 800;\n\n/**\n * Mouse wheel (and 2-finger trackpad) support on the web sucks.  It is\n * complicated, thus this doc is long and (hopefully) detailed enough to answer\n * your questions.\n *\n * If you need to react to the mouse wheel in a predictable way, this code is\n * like your bestest friend. * hugs *\n *\n * As of today, there are 4 DOM event types you can listen to:\n *\n *   'wheel'                -- Chrome(31+), FF(17+), IE(9+)\n *   'mousewheel'           -- Chrome, IE(6+), Opera, Safari\n *   'MozMousePixelScroll'  -- FF(3.5 only!) (2010-2013) -- don't bother!\n *   'DOMMouseScroll'       -- FF(0.9.7+) since 2003\n *\n * So what to do?  The is the best:\n *\n *   normalizeWheel.getEventType();\n *\n * In your event callback, use this code to get sane interpretation of the\n * deltas.  This code will return an object with properties:\n *\n *   spinX   -- normalized spin speed (use for zoom) - x plane\n *   spinY   -- \" - y plane\n *   pixelX  -- normalized distance (to pixels) - x plane\n *   pixelY  -- \" - y plane\n *\n * Wheel values are provided by the browser assuming you are using the wheel to\n * scroll a web page by a number of lines or pixels (or pages).  Values can vary\n * significantly on different platforms and browsers, forgetting that you can\n * scroll at different speeds.  Some devices (like trackpads) emit more events\n * at smaller increments with fine granularity, and some emit massive jumps with\n * linear speed or acceleration.\n *\n * This code does its best to normalize the deltas for you:\n *\n *   - spin is trying to normalize how far the wheel was spun (or trackpad\n *     dragged).  This is super useful for zoom support where you want to\n *     throw away the chunky scroll steps on the PC and make those equal to\n *     the slow and smooth tiny steps on the Mac. Key data: This code tries to\n *     resolve a single slow step on a wheel to 1.\n *\n *   - pixel is normalizing the desired scroll delta in pixel units.  You'll\n *     get the crazy differences between browsers, but at least it'll be in\n *     pixels!\n *\n *   - positive value indicates scrolling DOWN/RIGHT, negative UP/LEFT.  This\n *     should translate to positive value zooming IN, negative zooming OUT.\n *     This matches the newer 'wheel' event.\n *\n * Why are there spinX, spinY (or pixels)?\n *\n *   - spinX is a 2-finger side drag on the trackpad, and a shift + wheel turn\n *     with a mouse.  It results in side-scrolling in the browser by default.\n *\n *   - spinY is what you expect -- it's the classic axis of a mouse wheel.\n *\n *   - I dropped spinZ/pixelZ.  It is supported by the DOM 3 'wheel' event and\n *     probably is by browsers in conjunction with fancy 3D controllers .. but\n *     you know.\n *\n * Implementation info:\n *\n * Examples of 'wheel' event if you scroll slowly (down) by one step with an\n * average mouse:\n *\n *   OS X + Chrome  (mouse)     -    4   pixel delta  (wheelDelta -120)\n *   OS X + Safari  (mouse)     -  N/A   pixel delta  (wheelDelta  -12)\n *   OS X + Firefox (mouse)     -    0.1 line  delta  (wheelDelta  N/A)\n *   Win8 + Chrome  (mouse)     -  100   pixel delta  (wheelDelta -120)\n *   Win8 + Firefox (mouse)     -    3   line  delta  (wheelDelta -120)\n *\n * On the trackpad:\n *\n *   OS X + Chrome  (trackpad)  -    2   pixel delta  (wheelDelta   -6)\n *   OS X + Firefox (trackpad)  -    1   pixel delta  (wheelDelta  N/A)\n *\n * On other/older browsers.. it's more complicated as there can be multiple and\n * also missing delta values.\n *\n * The 'wheel' event is more standard:\n *\n * http://www.w3.org/TR/DOM-Level-3-Events/#events-wheelevents\n *\n * The basics is that it includes a unit, deltaMode (pixels, lines, pages), and\n * deltaX, deltaY and deltaZ.  Some browsers provide other values to maintain\n * backward compatibility with older events.  Those other values help us\n * better normalize spin speed.  Example of what the browsers provide:\n *\n *                          | event.wheelDelta | event.detail\n *        ------------------+------------------+--------------\n *          Safari v5/OS X  |       -120       |       0\n *          Safari v5/Win7  |       -120       |       0\n *         Chrome v17/OS X  |       -120       |       0\n *         Chrome v17/Win7  |       -120       |       0\n *                IE9/Win7  |       -120       |   undefined\n *         Firefox v4/OS X  |     undefined    |       1\n *         Firefox v4/Win7  |     undefined    |       3\n *\n */\nfunction normalizeWheel(/*object*/ event) /*object*/ {\n  var sX = 0, sY = 0,       // spinX, spinY\n      pX = 0, pY = 0;       // pixelX, pixelY\n\n  // Legacy\n  if ('detail'      in event) { sY = event.detail; }\n  if ('wheelDelta'  in event) { sY = -event.wheelDelta / 120; }\n  if ('wheelDeltaY' in event) { sY = -event.wheelDeltaY / 120; }\n  if ('wheelDeltaX' in event) { sX = -event.wheelDeltaX / 120; }\n\n  // side scrolling on FF with DOMMouseScroll\n  if ( 'axis' in event && event.axis === event.HORIZONTAL_AXIS ) {\n    sX = sY;\n    sY = 0;\n  }\n\n  pX = sX * PIXEL_STEP;\n  pY = sY * PIXEL_STEP;\n\n  if ('deltaY' in event) { pY = event.deltaY; }\n  if ('deltaX' in event) { pX = event.deltaX; }\n\n  if ((pX || pY) && event.deltaMode) {\n    if (event.deltaMode == 1) {          // delta in LINE units\n      pX *= LINE_HEIGHT;\n      pY *= LINE_HEIGHT;\n    } else {                             // delta in PAGE units\n      pX *= PAGE_HEIGHT;\n      pY *= PAGE_HEIGHT;\n    }\n  }\n\n  // Fall-back if spin cannot be determined\n  if (pX && !sX) { sX = (pX < 1) ? -1 : 1; }\n  if (pY && !sY) { sY = (pY < 1) ? -1 : 1; }\n\n  return { spinX  : sX,\n           spinY  : sY,\n           pixelX : pX,\n           pixelY : pY };\n}\n\n\n/**\n * The best combination if you prefer spinX + spinY normalization.  It favors\n * the older DOMMouseScroll for Firefox, as FF does not include wheelDelta with\n * 'wheel' event, making spin speed determination impossible.\n */\nnormalizeWheel.getEventType = function() /*string*/ {\n  return (UserAgent_DEPRECATED.firefox())\n           ? 'DOMMouseScroll'\n           : (isEventSupported('wheel'))\n               ? 'wheel'\n               : 'mousewheel';\n};\n\nmodule.exports = normalizeWheel;\n","/**\n * Copyright 2004-present Facebook. All Rights Reserved.\n *\n * @providesModule UserAgent_DEPRECATED\n */\n\n/**\n *  Provides entirely client-side User Agent and OS detection. You should prefer\n *  the non-deprecated UserAgent module when possible, which exposes our\n *  authoritative server-side PHP-based detection to the client.\n *\n *  Usage is straightforward:\n *\n *    if (UserAgent_DEPRECATED.ie()) {\n *      //  IE\n *    }\n *\n *  You can also do version checks:\n *\n *    if (UserAgent_DEPRECATED.ie() >= 7) {\n *      //  IE7 or better\n *    }\n *\n *  The browser functions will return NaN if the browser does not match, so\n *  you can also do version compares the other way:\n *\n *    if (UserAgent_DEPRECATED.ie() < 7) {\n *      //  IE6 or worse\n *    }\n *\n *  Note that the version is a float and may include a minor version number,\n *  so you should always use range operators to perform comparisons, not\n *  strict equality.\n *\n *  **Note:** You should **strongly** prefer capability detection to browser\n *  version detection where it's reasonable:\n *\n *    http://www.quirksmode.org/js/support.html\n *\n *  Further, we have a large number of mature wrapper functions and classes\n *  which abstract away many browser irregularities. Check the documentation,\n *  grep for things, or ask on javascript@lists.facebook.com before writing yet\n *  another copy of \"event || window.event\".\n *\n */\n\nvar _populated = false;\n\n// Browsers\nvar _ie, _firefox, _opera, _webkit, _chrome;\n\n// Actual IE browser for compatibility mode\nvar _ie_real_version;\n\n// Platforms\nvar _osx, _windows, _linux, _android;\n\n// Architectures\nvar _win64;\n\n// Devices\nvar _iphone, _ipad, _native;\n\nvar _mobile;\n\nfunction _populate() {\n  if (_populated) {\n    return;\n  }\n\n  _populated = true;\n\n  // To work around buggy JS libraries that can't handle multi-digit\n  // version numbers, Opera 10's user agent string claims it's Opera\n  // 9, then later includes a Version/X.Y field:\n  //\n  // Opera/9.80 (foo) Presto/2.2.15 Version/10.10\n  var uas = navigator.userAgent;\n  var agent = /(?:MSIE.(\\d+\\.\\d+))|(?:(?:Firefox|GranParadiso|Iceweasel).(\\d+\\.\\d+))|(?:Opera(?:.+Version.|.)(\\d+\\.\\d+))|(?:AppleWebKit.(\\d+(?:\\.\\d+)?))|(?:Trident\\/\\d+\\.\\d+.*rv:(\\d+\\.\\d+))/.exec(uas);\n  var os    = /(Mac OS X)|(Windows)|(Linux)/.exec(uas);\n\n  _iphone = /\\b(iPhone|iP[ao]d)/.exec(uas);\n  _ipad = /\\b(iP[ao]d)/.exec(uas);\n  _android = /Android/i.exec(uas);\n  _native = /FBAN\\/\\w+;/i.exec(uas);\n  _mobile = /Mobile/i.exec(uas);\n\n  // Note that the IE team blog would have you believe you should be checking\n  // for 'Win64; x64'.  But MSDN then reveals that you can actually be coming\n  // from either x64 or ia64;  so ultimately, you should just check for Win64\n  // as in indicator of whether you're in 64-bit IE.  32-bit IE on 64-bit\n  // Windows will send 'WOW64' instead.\n  _win64 = !!(/Win64/.exec(uas));\n\n  if (agent) {\n    _ie = agent[1] ? parseFloat(agent[1]) : (\n          agent[5] ? parseFloat(agent[5]) : NaN);\n    // IE compatibility mode\n    if (_ie && document && document.documentMode) {\n      _ie = document.documentMode;\n    }\n    // grab the \"true\" ie version from the trident token if available\n    var trident = /(?:Trident\\/(\\d+.\\d+))/.exec(uas);\n    _ie_real_version = trident ? parseFloat(trident[1]) + 4 : _ie;\n\n    _firefox = agent[2] ? parseFloat(agent[2]) : NaN;\n    _opera   = agent[3] ? parseFloat(agent[3]) : NaN;\n    _webkit  = agent[4] ? parseFloat(agent[4]) : NaN;\n    if (_webkit) {\n      // We do not add the regexp to the above test, because it will always\n      // match 'safari' only since 'AppleWebKit' appears before 'Chrome' in\n      // the userAgent string.\n      agent = /(?:Chrome\\/(\\d+\\.\\d+))/.exec(uas);\n      _chrome = agent && agent[1] ? parseFloat(agent[1]) : NaN;\n    } else {\n      _chrome = NaN;\n    }\n  } else {\n    _ie = _firefox = _opera = _chrome = _webkit = NaN;\n  }\n\n  if (os) {\n    if (os[1]) {\n      // Detect OS X version.  If no version number matches, set _osx to true.\n      // Version examples:  10, 10_6_1, 10.7\n      // Parses version number as a float, taking only first two sets of\n      // digits.  If only one set of digits is found, returns just the major\n      // version number.\n      var ver = /(?:Mac OS X (\\d+(?:[._]\\d+)?))/.exec(uas);\n\n      _osx = ver ? parseFloat(ver[1].replace('_', '.')) : true;\n    } else {\n      _osx = false;\n    }\n    _windows = !!os[2];\n    _linux   = !!os[3];\n  } else {\n    _osx = _windows = _linux = false;\n  }\n}\n\nvar UserAgent_DEPRECATED = {\n\n  /**\n   *  Check if the UA is Internet Explorer.\n   *\n   *\n   *  @return float|NaN Version number (if match) or NaN.\n   */\n  ie: function() {\n    return _populate() || _ie;\n  },\n\n  /**\n   * Check if we're in Internet Explorer compatibility mode.\n   *\n   * @return bool true if in compatibility mode, false if\n   * not compatibility mode or not ie\n   */\n  ieCompatibilityMode: function() {\n    return _populate() || (_ie_real_version > _ie);\n  },\n\n\n  /**\n   * Whether the browser is 64-bit IE.  Really, this is kind of weak sauce;  we\n   * only need this because Skype can't handle 64-bit IE yet.  We need to remove\n   * this when we don't need it -- tracked by #601957.\n   */\n  ie64: function() {\n    return UserAgent_DEPRECATED.ie() && _win64;\n  },\n\n  /**\n   *  Check if the UA is Firefox.\n   *\n   *\n   *  @return float|NaN Version number (if match) or NaN.\n   */\n  firefox: function() {\n    return _populate() || _firefox;\n  },\n\n\n  /**\n   *  Check if the UA is Opera.\n   *\n   *\n   *  @return float|NaN Version number (if match) or NaN.\n   */\n  opera: function() {\n    return _populate() || _opera;\n  },\n\n\n  /**\n   *  Check if the UA is WebKit.\n   *\n   *\n   *  @return float|NaN Version number (if match) or NaN.\n   */\n  webkit: function() {\n    return _populate() || _webkit;\n  },\n\n  /**\n   *  For Push\n   *  WILL BE REMOVED VERY SOON. Use UserAgent_DEPRECATED.webkit\n   */\n  safari: function() {\n    return UserAgent_DEPRECATED.webkit();\n  },\n\n  /**\n   *  Check if the UA is a Chrome browser.\n   *\n   *\n   *  @return float|NaN Version number (if match) or NaN.\n   */\n  chrome : function() {\n    return _populate() || _chrome;\n  },\n\n\n  /**\n   *  Check if the user is running Windows.\n   *\n   *  @return bool `true' if the user's OS is Windows.\n   */\n  windows: function() {\n    return _populate() || _windows;\n  },\n\n\n  /**\n   *  Check if the user is running Mac OS X.\n   *\n   *  @return float|bool   Returns a float if a version number is detected,\n   *                       otherwise true/false.\n   */\n  osx: function() {\n    return _populate() || _osx;\n  },\n\n  /**\n   * Check if the user is running Linux.\n   *\n   * @return bool `true' if the user's OS is some flavor of Linux.\n   */\n  linux: function() {\n    return _populate() || _linux;\n  },\n\n  /**\n   * Check if the user is running on an iPhone or iPod platform.\n   *\n   * @return bool `true' if the user is running some flavor of the\n   *    iPhone OS.\n   */\n  iphone: function() {\n    return _populate() || _iphone;\n  },\n\n  mobile: function() {\n    return _populate() || (_iphone || _ipad || _android || _mobile);\n  },\n\n  nativeApp: function() {\n    // webviews inside of the native apps\n    return _populate() || _native;\n  },\n\n  android: function() {\n    return _populate() || _android;\n  },\n\n  ipad: function() {\n    return _populate() || _ipad;\n  }\n};\n\nmodule.exports = UserAgent_DEPRECATED;\n","/**\n * Copyright 2013-2015, Facebook, Inc.\n * All rights reserved.\n *\n * This source code is licensed under the BSD-style license found in the\n * LICENSE file in the root directory of this source tree. An additional grant\n * of patent rights can be found in the PATENTS file in the same directory.\n *\n * @providesModule isEventSupported\n */\n\n'use strict';\n\nvar ExecutionEnvironment = require('./ExecutionEnvironment');\n\nvar useHasFeature;\nif (ExecutionEnvironment.canUseDOM) {\n  useHasFeature =\n    document.implementation &&\n    document.implementation.hasFeature &&\n    // always returns true in newer browsers as per the standard.\n    // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature\n    document.implementation.hasFeature('', '') !== true;\n}\n\n/**\n * Checks if an event is supported in the current execution environment.\n *\n * NOTE: This will not work correctly for non-generic events such as `change`,\n * `reset`, `load`, `error`, and `select`.\n *\n * Borrows from Modernizr.\n *\n * @param {string} eventNameSuffix Event name, e.g. \"click\".\n * @param {?boolean} capture Check if the capture phase is supported.\n * @return {boolean} True if the event is supported.\n * @internal\n * @license Modernizr 3.0.0pre (Custom Build) | MIT\n */\nfunction isEventSupported(eventNameSuffix, capture) {\n  if (!ExecutionEnvironment.canUseDOM ||\n      capture && !('addEventListener' in document)) {\n    return false;\n  }\n\n  var eventName = 'on' + eventNameSuffix;\n  var isSupported = eventName in document;\n\n  if (!isSupported) {\n    var element = document.createElement('div');\n    element.setAttribute(eventName, 'return;');\n    isSupported = typeof element[eventName] === 'function';\n  }\n\n  if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') {\n    // This is the only way to test support for the `wheel` event in IE9+.\n    isSupported = document.implementation.hasFeature('Events.wheel', '3.0');\n  }\n\n  return isSupported;\n}\n\nmodule.exports = isEventSupported;\n","/**\n * Copyright (c) 2015, Facebook, Inc.\n * All rights reserved.\n *\n * This source code is licensed under the BSD-style license found in the\n * LICENSE file in the root directory of this source tree. An additional grant\n * of patent rights can be found in the PATENTS file in the same directory.\n *\n * @providesModule ExecutionEnvironment\n */\n\n/*jslint evil: true */\n\n'use strict';\n\nvar canUseDOM = !!(\n  typeof window !== 'undefined' &&\n  window.document &&\n  window.document.createElement\n);\n\n/**\n * Simple, lightweight module assisting with the detection and context of\n * Worker. Helps avoid circular dependencies and allows code to reason about\n * whether or not they are in a Worker, even if they never include the main\n * `ReactWorker` dependency.\n */\nvar ExecutionEnvironment = {\n\n  canUseDOM: canUseDOM,\n\n  canUseWorkers: typeof Worker !== 'undefined',\n\n  canUseEventListeners:\n    canUseDOM && !!(window.addEventListener || window.attachEvent),\n\n  canUseViewport: canUseDOM && !!window.screen,\n\n  isInWorker: !canUseDOM // For now, this is true - might change in the future.\n\n};\n\nmodule.exports = ExecutionEnvironment;\n"],"sourceRoot":""}