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t.Adapter(this.element),this.callback=n.handler,this.axis=this.options.horizontal?\"horizontal\":\"vertical\",this.enabled=this.options.enabled,this.triggerPoint=null,this.group=t.Group.findOrCreate({name:this.options.group,axis:this.axis}),this.context=t.Context.findOrCreateByElement(this.options.context),t.offsetAliases[this.options.offset]&&(this.options.offset=t.offsetAliases[this.options.offset]),this.group.add(this),this.context.add(this),i[this.key]=this,e+=1}var e=0,i={};t.prototype.queueTrigger=function(t){this.group.queueTrigger(this,t)},t.prototype.trigger=function(t){this.enabled&&this.callback&&this.callback.apply(this,t)},t.prototype.destroy=function(){this.context.remove(this),this.group.remove(this),delete i[this.key]},t.prototype.disable=function(){return this.enabled=!1,this},t.prototype.enable=function(){return this.context.refresh(),this.enabled=!0,this},t.prototype.next=function(){return this.group.next(this)},t.prototype.previous=function(){return this.group.previous(this)},t.invokeAll=function(t){var e=[];for(var n in i)e.push(i[n]);for(var o=0,r=e.length;r>o;o++)e[o][t]()},t.destroyAll=function(){t.invokeAll(\"destroy\")},t.disableAll=function(){t.invokeAll(\"disable\")},t.enableAll=function(){t.Context.refreshAll();for(var e in i)i[e].enabled=!0;return this},t.refreshAll=function(){t.Context.refreshAll()},t.viewportHeight=function(){return window.innerHeight||document.documentElement.clientHeight},t.viewportWidth=function(){return document.documentElement.clientWidth},t.adapters=[],t.defaults={context:window,continuous:!0,enabled:!0,group:\"default\",horizontal:!1,offset:0},t.offsetAliases={\"bottom-in-view\":function(){return this.context.innerHeight()-this.adapter.outerHeight()},\"right-in-view\":function(){return this.context.innerWidth()-this.adapter.outerWidth()}},window.Waypoint=t}(),function(){\"use strict\";function t(t){window.setTimeout(t,1e3/60)}function e(t){this.element=t,this.Adapter=o.Adapter,this.adapter=new this.Adapter(t),this.key=\"waypoint-context-\"+i,this.didScroll=!1,this.didResize=!1,this.oldScroll={x:this.adapter.scrollLeft(),y:this.adapter.scrollTop()},this.waypoints={vertical:{},horizontal:{}},t.waypointContextKey=this.key,n[t.waypointContextKey]=this,i+=1,o.windowContext||(o.windowContext=!0,o.windowContext=new e(window)),this.createThrottledScrollHandler(),this.createThrottledResizeHandler()}var i=0,n={},o=window.Waypoint,r=window.onload;e.prototype.add=function(t){var e=t.options.horizontal?\"horizontal\":\"vertical\";this.waypoints[e][t.key]=t,this.refresh()},e.prototype.checkEmpty=function(){var t=this.Adapter.isEmptyObject(this.waypoints.horizontal),e=this.Adapter.isEmptyObject(this.waypoints.vertical),i=this.element==this.element.window;t&&e&&!i&&(this.adapter.off(\".waypoints\"),delete n[this.key])},e.prototype.createThrottledResizeHandler=function(){function t(){e.handleResize(),e.didResize=!1}var e=this;this.adapter.on(\"resize.waypoints\",function(){e.didResize||(e.didResize=!0,o.requestAnimationFrame(t))})},e.prototype.createThrottledScrollHandler=function(){function t(){e.handleScroll(),e.didScroll=!1}var e=this;this.adapter.on(\"scroll.waypoints\",function(){(!e.didScroll||o.isTouch)&&(e.didScroll=!0,o.requestAnimationFrame(t))})},e.prototype.handleResize=function(){o.Context.refreshAll()},e.prototype.handleScroll=function(){var t={},e={horizontal:{newScroll:this.adapter.scrollLeft(),oldScroll:this.oldScroll.x,forward:\"right\",backward:\"left\"},vertical:{newScroll:this.adapter.scrollTop(),oldScroll:this.oldScroll.y,forward:\"down\",backward:\"up\"}};for(var i in e){var n=e[i],o=n.newScroll>n.oldScroll,r=o?n.forward:n.backward;for(var s in this.waypoints[i]){var l=this.waypoints[i][s];if(null!==l.triggerPoint){var a=n.oldScroll<l.triggerPoint,h=n.newScroll>=l.triggerPoint,p=a&&h,u=!a&&!h;(p||u)&&(l.queueTrigger(r),t[l.group.id]=l.group)}}}for(var d in t)t[d].flushTriggers();this.oldScroll={x:e.horizontal.newScroll,y:e.vertical.newScroll}},e.prototype.innerHeight=function(){return this.element==this.element.window?o.viewportHeight():this.adapter.innerHeight()},e.prototype.remove=function(t){delete this.waypoints[t.axis][t.key],this.checkEmpty()},e.prototype.innerWidth=function(){return this.element==this.element.window?o.viewportWidth():this.adapter.innerWidth()},e.prototype.destroy=function(){var t=[];for(var e in this.waypoints)for(var i in this.waypoints[e])t.push(this.waypoints[e][i]);for(var n=0,o=t.length;o>n;n++)t[n].destroy()},e.prototype.refresh=function(){var t,e=this.element==this.element.window,i=e?void 0:this.adapter.offset(),n={};this.handleScroll(),t={horizontal:{contextOffset:e?0:i.left,contextScroll:e?0:this.oldScroll.x,contextDimension:this.innerWidth(),oldScroll:this.oldScroll.x,forward:\"right\",backward:\"left\",offsetProp:\"left\"},vertical:{contextOffset:e?0:i.top,contextScroll:e?0:this.oldScroll.y,contextDimension:this.innerHeight(),oldScroll:this.oldScroll.y,forward:\"down\",backward:\"up\",offsetProp:\"top\"}};for(var r in t){var s=t[r];for(var l in this.waypoints[r]){var a,h,p,u,d,f=this.waypoints[r][l],c=f.options.offset,w=f.triggerPoint,y=0,g=null==w;f.element!==f.element.window&&(y=f.adapter.offset()[s.offsetProp]),\"function\"==typeof c?c=c.apply(f):\"string\"==typeof c&&(c=parseFloat(c),f.options.offset.indexOf(\"%\")>-1&&(c=Math.ceil(s.contextDimension*c/100))),a=s.contextScroll-s.contextOffset,f.triggerPoint=Math.floor(y+a-c),h=w<s.oldScroll,p=f.triggerPoint>=s.oldScroll,u=h&&p,d=!h&&!p,!g&&u?(f.queueTrigger(s.backward),n[f.group.id]=f.group):!g&&d?(f.queueTrigger(s.forward),n[f.group.id]=f.group):g&&s.oldScroll>=f.triggerPoint&&(f.queueTrigger(s.forward),n[f.group.id]=f.group)}}return o.requestAnimationFrame(function(){for(var t in n)n[t].flushTriggers()}),this},e.findOrCreateByElement=function(t){return e.findByElement(t)||new e(t)},e.refreshAll=function(){for(var t in n)n[t].refresh()},e.findByElement=function(t){return n[t.waypointContextKey]},window.onload=function(){r&&r(),e.refreshAll()},o.requestAnimationFrame=function(e){var i=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||t;i.call(window,e)},o.Context=e}(),function(){\"use strict\";function t(t,e){return t.triggerPoint-e.triggerPoint}function e(t,e){return e.triggerPoint-t.triggerPoint}function i(t){this.name=t.name,this.axis=t.axis,this.id=this.name+\"-\"+this.axis,this.waypoints=[],this.clearTriggerQueues(),n[this.axis][this.name]=this}var n={vertical:{},horizontal:{}},o=window.Waypoint;i.prototype.add=function(t){this.waypoints.push(t)},i.prototype.clearTriggerQueues=function(){this.triggerQueues={up:[],down:[],left:[],right:[]}},i.prototype.flushTriggers=function(){for(var i in this.triggerQueues){var n=this.triggerQueues[i],o=\"up\"===i||\"left\"===i;n.sort(o?e:t);for(var r=0,s=n.length;s>r;r+=1){var l=n[r];(l.options.continuous||r===n.length-1)&&l.trigger([i])}}this.clearTriggerQueues()},i.prototype.next=function(e){this.waypoints.sort(t);var i=o.Adapter.inArray(e,this.waypoints),n=i===this.waypoints.length-1;return n?null:this.waypoints[i+1]},i.prototype.previous=function(e){this.waypoints.sort(t);var i=o.Adapter.inArray(e,this.waypoints);return i?this.waypoints[i-1]:null},i.prototype.queueTrigger=function(t,e){this.triggerQueues[e].push(t)},i.prototype.remove=function(t){var e=o.Adapter.inArray(t,this.waypoints);e>-1&&this.waypoints.splice(e,1)},i.prototype.first=function(){return this.waypoints[0]},i.prototype.last=function(){return this.waypoints[this.waypoints.length-1]},i.findOrCreate=function(t){return n[t.axis][t.name]||new i(t)},o.Group=i}(),function(){\"use strict\";function t(t){return t===t.window}function e(e){return t(e)?e:e.defaultView}function i(t){this.element=t,this.handlers={}}var n=window.Waypoint;i.prototype.innerHeight=function(){var e=t(this.element);return e?this.element.innerHeight:this.element.clientHeight},i.prototype.innerWidth=function(){var e=t(this.element);return e?this.element.innerWidth:this.element.clientWidth},i.prototype.off=function(t,e){function i(t,e,i){for(var n=0,o=e.length-1;o>n;n++){var r=e[n];i&&i!==r||t.removeEventListener(r)}}var n=t.split(\".\"),o=n[0],r=n[1],s=this.element;if(r&&this.handlers[r]&&o)i(s,this.handlers[r][o],e),this.handlers[r][o]=[];else if(o)for(var l in this.handlers)i(s,this.handlers[l][o]||[],e),this.handlers[l][o]=[];else if(r&&this.handlers[r]){for(var a in this.handlers[r])i(s,this.handlers[r][a],e);this.handlers[r]={}}},i.prototype.offset=function(){if(!this.element.ownerDocument)return null;var t=this.element.ownerDocument.documentElement,i=e(this.element.ownerDocument),n={top:0,left:0};return this.element.getBoundingClientRect&&(n=this.element.getBoundingClientRect()),{top:n.top+i.pageYOffset-t.clientTop,left:n.left+i.pageXOffset-t.clientLeft}},i.prototype.on=function(t,e){var i=t.split(\".\"),n=i[0],o=i[1]||\"__default\",r=this.handlers[o]=this.handlers[o]||{},s=r[n]=r[n]||[];s.push(e),this.element.addEventListener(n,e)},i.prototype.outerHeight=function(e){var i,n=this.innerHeight();return e&&!t(this.element)&&(i=window.getComputedStyle(this.element),n+=parseInt(i.marginTop,10),n+=parseInt(i.marginBottom,10)),n},i.prototype.outerWidth=function(e){var i,n=this.innerWidth();return e&&!t(this.element)&&(i=window.getComputedStyle(this.element),n+=parseInt(i.marginLeft,10),n+=parseInt(i.marginRight,10)),n},i.prototype.scrollLeft=function(){var t=e(this.element);return t?t.pageXOffset:this.element.scrollLeft},i.prototype.scrollTop=function(){var t=e(this.element);return t?t.pageYOffset:this.element.scrollTop},i.extend=function(){function t(t,e){if(\"object\"==typeof t&&\"object\"==typeof e)for(var i in e)e.hasOwnProperty(i)&&(t[i]=e[i]);return t}for(var e=Array.prototype.slice.call(arguments),i=1,n=e.length;n>i;i++)t(e[0],e[i]);return e[0]},i.inArray=function(t,e,i){return null==e?-1:e.indexOf(t,i)},i.isEmptyObject=function(t){for(var e in t)return!1;return!0},n.adapters.push({name:\"noframework\",Adapter:i}),n.Adapter=i}();","import { Component } from '@verndale/core';\nimport clickOutside from 'click-outside';\nimport { iOS, isMobile } from '../helpers';\nimport 'waypoints/lib/noframework.waypoints.min.js';\n\nclass Module extends Component {\n  setupDefaults() {\n    this.dom = {\n      $toc: this.el._$('.table-of-contents__toc'),\n      $mobileExpandTrigger: this.el._$('.table-of-contents__toc-heading-actions-wrapper'),\n      $mobileCollapserigger: this.el._$('.table-of-contents__close-trigger'),\n      $tocItemsContainer: this.el._$('.table-of-contents__toc-items'),\n      $interestCallout: _$('.interest-callout'),\n      $interesetCta: this.el._$('.course-detail__cta'),\n      $titles: [...this.el._$$('.course-info__title'), ...this.el._$$('.accordion__heading')]\n    };\n\n    if (!this.dom.$titles.length) return;\n\n    this.idPrefix = 'course-detail-title';\n    this.tocTemplate = item => `\n      <li class=\"table-of-contents__toc-item\">\n        <a class=\"link table-of-contents__toc-anchor\" href=\"#${item.id}\">${item.label}</a>\n      </li>\n    `;\n\n    this.collapsedTocClass = 'table-of-contents__toc--mobile-collapsed';\n    this.mobileWrapperHeight = this.dom.$mobileExpandTrigger.offsetHeight;\n\n    this.addIdsToTitles();\n    this.renderTocs();\n\n    this.dom.$navItems = this.el._$$('.table-of-contents__toc-anchor');\n    this.updateToc(`#${this.dom.$titles[0].id}`);\n  }\n\n  addListeners() {\n    this.dom.$navItems._on('click', this.handleNavItemsClick.bind(this));\n    this.dom.$mobileExpandTrigger._on('click', this.expandToc.bind(this));\n    this.dom.$mobileCollapserigger._on('click', this.collapseToc.bind(this));\n    if (this.dom.$interesetCta) this.dom.$interesetCta._on('click', this.handleInteresetCtaClick.bind(this));\n  }\n\n  addIdsToTitles() {\n    this.dom.$titles.forEach((el, i) => el.id = `${this.idPrefix}-${i}`)\n  }\n\n  renderTocs() {\n    let html = '';\n    this.dom.$titles.forEach(title => {\n      const waypoint = new window.Waypoint({\n        element: title,\n        handler: () => {\n          this.handleWaypointTrigger(waypoint);\n        },\n        offset: isMobile() ? '45%' : '25%'\n      });\n\n      html += this.tocTemplate({ label: title.textContent, id: title.id });\n    });\n\n    this.dom.$tocItemsContainer.innerHTML = html;\n  }\n\n  updateToc(hash) {\n    if (!hash) hash = `#${this.highlightedElement.id}`;\n    const navEl = document.querySelector(`a[href=\"${hash}\"]`);\n\n    this.dom.$navItems.forEach(el => el.removeAttribute('aria-current'));\n    this.dom.$navItems.forEach(el => el.classList.add('link--dark'));\n    navEl.setAttribute('aria-current', 'page');\n    navEl.classList.remove('link--dark');\n  }\n\n  expandToc() {\n    this.dom.$toc.classList.remove(this.collapsedTocClass);\n    this.unbindTocOutsideClick = clickOutside(\n      this.dom.$toc,\n      this.collapseToc.bind(this)\n    );\n\n    if (isMobile()) {\n      if (!this.initialWrapperHeight) this.initialWrapperHeight = this.dom.$mobileTocWrapper.offsetHeight;\n\n      if (iOS()) {\n        this.dom.$mobileTocWrapper.style.top = `calc(100vh - ${this.initialWrapperHeight + 130}px)`;\n      } else {\n        this.dom.$mobileTocWrapper.style.top = `calc(100vh - ${this.initialWrapperHeight + 10}px)`;\n      }\n\n      // avoid adding extra spacing on top\n      window.requestAnimationFrame(() => {\n        this.dom.$mobileTocWrapper.style.height = `${this.mobileWrapperHeight}px`;\n      })\n    }\n  }\n\n  collapseToc() {\n    this.dom.$toc.classList.add(this.collapsedTocClass);\n    this.unbindTocOutsideClick?.();\n\n    if (isMobile()) {\n      if (iOS()) {\n        this.dom.$mobileTocWrapper.style.top = 'calc(100vh - 180px)';\n      } else {\n        this.dom.$mobileTocWrapper.style.top = 'calc(100vh - 60px)';\n      }\n    }\n  }\n\n  handleNavItemsClick(e) {\n    e.preventDefault();\n\n    const $el = e.target;\n    const id = $el.href.split('#')[1];\n    const $target = document.getElementById(id);\n    const topTarget = window.pageYOffset + $target.getBoundingClientRect().top - 20;\n\n    this.menuTriggeredScroll = true;\n    this.updateToc(`#${id}`);\n\n    window.scroll({\n      left: 0,\n      top: topTarget,\n      behavior: 'smooth'\n    });\n\n    this.setScrollInterval = setInterval(() => {\n      if (this.lastScrollPosition === window.pageYOffset) {\n        this.menuTriggeredScroll = false;\n        clearInterval(this.setScrollInterval);\n      } else {\n        this.lastScrollPosition = window.pageYOffset;\n      }\n    }, 100);\n  }\n\n  handleWaypointTrigger(waypoint) {\n    if (this.menuTriggeredScroll) return;\n    this.highlightedElement = waypoint.element;\n    this.updateToc();\n  }\n\n  handleInteresetCtaClick(e) {\n    e.preventDefault();\n    if (!this.dom.$interestCallout) return;\n\n    const top = window.pageYOffset + this.dom.$interestCallout.getBoundingClientRect().top - 20;\n\n    window.scroll({\n      left: 0,\n      top,\n      behavior: 'smooth'\n    });\n  }\n}\n\nexport default Module;\n"],"sourceRoot":""}