fa23-si/dist/reveal.min.js

/*!
* reveal.js 4.0.0-dev (Wed Apr 15 2020)
* https://revealjs.com
* MIT licensed
*
* Copyright (C) 2020 Hakim El Hattab, https://hakim.se
*/
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t.type="text/css",e&&e.length>0&&(t.styleSheet?t.styleSheet.cssText=e:t.appendChild(document.createTextNode(e))),document.head.appendChild(t),t},h=function(){var e={};for(var t in location.search.replace(/[A-Z0-9]+?=([\w\.%-]*)/gi,(function(t){e[t.split("=").shift()]=t.split("=").pop()})),e){var n=e[t];e[t]=s(unescape(n))}return void 0!==e.dependencies&&delete e.dependencies,e},v=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(e){var n,i=e.style.height;return e.style.height="0px",e.parentNode.style.height="auto",n=t-e.parentNode.offsetHeight,e.style.height=i+"px",e.parentNode.style.removeProperty("height"),n}return t},f=navigator.userAgent,g=document.createElement("div"),p=/(iphone|ipod|ipad|android)/gi.test(f)||"MacIntel"===navigator.platform&&navigator.maxTouchPoints>1,m=/chrome/i.test(f)&&!/edge/i.test(f),y=/android/gi.test(f),b="zoom"in g.style&&!p&&(m||/Version\/[\d\.]+.*Safari/.test(f)),w="function"==typeof 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audio[data-lazy-loaded][src], iframe[data-lazy-loaded][src]").forEach((function(e){e.setAttribute("data-src",e.getAttribute("src")),e.removeAttribute("src")})),o(e,"video[data-lazy-loaded] source[src], audio source[src]").forEach((function(e){e.setAttribute("data-src",e.getAttribute("src")),e.removeAttribute("src")}))}},{key:"formatEmbeddedContent",value:function(){var e=this,t=function(t,n,i){o(e.Reveal.getSlidesElement(),"iframe["+t+'*="'+n+'"]').forEach((function(e){var n=e.getAttribute(t);n&&-1===n.indexOf(i)&&e.setAttribute(t,n+(/\?/.test(n)?"&":"?")+i)}))};t("src","youtube.com/embed/","enablejsapi=1"),t("data-src","youtube.com/embed/","enablejsapi=1"),t("src","player.vimeo.com/","api=1"),t("data-src","player.vimeo.com/","api=1")}},{key:"startEmbeddedContent",value:function(e){var t=this;e&&!this.Reveal.isSpeakerNotes()&&(o(e,'img[src$=".gif"]').forEach((function(e){e.setAttribute("src",e.getAttribute("src"))})),o(e,"video, 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n=e.createBackground(t,e.element);o(t,"section").forEach((function(t){e.createBackground(t,n),n.classList.add("stack")}))})),this.Reveal.getConfig().parallaxBackgroundImage?(this.element.style.backgroundImage='url("'+this.Reveal.getConfig().parallaxBackgroundImage+'")',this.element.style.backgroundSize=this.Reveal.getConfig().parallaxBackgroundSize,this.element.style.backgroundRepeat=this.Reveal.getConfig().parallaxBackgroundRepeat,this.element.style.backgroundPosition=this.Reveal.getConfig().parallaxBackgroundPosition,setTimeout((function(){e.Reveal.getRevealElement().classList.add("has-parallax-background")}),1)):(this.element.style.backgroundImage="",this.Reveal.getRevealElement().classList.remove("has-parallax-background"))}},{key:"createBackground",value:function(e,t){var n=document.createElement("div");n.className="slide-background "+e.className.replace(/present|past|future/,"");var i=document.createElement("div");return i.className="slide-background-content",n.appendChild(i),t.appendChild(n),e.slideBackgroundElement=n,e.slideBackgroundContentElement=i,this.sync(e),n}},{key:"sync",value:function(e){var t=e.slideBackgroundElement,n=e.slideBackgroundContentElement;e.classList.remove("has-dark-background"),e.classList.remove("has-light-background"),t.removeAttribute("data-loaded"),t.removeAttribute("data-background-hash"),t.removeAttribute("data-background-size"),t.removeAttribute("data-background-transition"),t.style.backgroundColor="",n.style.backgroundSize="",n.style.backgroundRepeat="",n.style.backgroundPosition="",n.style.backgroundImage="",n.style.opacity="",n.innerHTML="";var i={background:e.getAttribute("data-background"),backgroundSize:e.getAttribute("data-background-size"),backgroundImage:e.getAttribute("data-background-image"),backgroundVideo:e.getAttribute("data-background-video"),backgroundIframe:e.getAttribute("data-background-iframe"),backgroundColor:e.getAttribute("data-background-color"),backgroundRepeat:e.getAttribute("data-background-repeat"),backgroundPosition:e.getAttribute("data-background-position"),backgroundTransition:e.getAttribute("data-background-transition"),backgroundOpacity:e.getAttribute("data-background-opacity")};i.background&&(/^(http|file|\/\/)/gi.test(i.background)||/\.(svg|png|jpg|jpeg|gif|bmp)([?#\s]|$)/gi.test(i.background)?e.setAttribute("data-background-image",i.background):t.style.background=i.background),(i.background||i.backgroundColor||i.backgroundImage||i.backgroundVideo||i.backgroundIframe)&&t.setAttribute("data-background-hash",i.background+i.backgroundSize+i.backgroundImage+i.backgroundVideo+i.backgroundIframe+i.backgroundColor+i.backgroundRepeat+i.backgroundPosition+i.backgroundTransition+i.backgroundOpacity),i.backgroundSize&&t.setAttribute("data-background-size",i.backgroundSize),i.backgroundColor&&(t.style.backgroundColor=i.backgroundColor),i.backgroundTransition&&t.setAttribute("data-background-transition",i.backgroundTransition),e.hasAttribute("data-preload")&&t.setAttribute("data-preload",""),i.backgroundSize&&(n.style.backgroundSize=i.backgroundSize),i.backgroundRepeat&&(n.style.backgroundRepeat=i.backgroundRepeat),i.backgroundPosition&&(n.style.backgroundPosition=i.backgroundPosition),i.backgroundOpacity&&(n.style.opacity=i.backgroundOpacity);var a,r=i.backgroundColor;if(!r){var o=window.getComputedStyle(t);o&&o.backgroundColor&&(r=o.backgroundColor)}if(r){var s=S(r);s&&0!==s.a&&("string"==typeof(a=r)&&(a=S(a)),(a?(299*a.r+587*a.g+114*a.b)/1e3:null)<128?e.classList.add("has-dark-background"):e.classList.add("has-light-background"))}}},{key:"update",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]&&arguments[0],n=this.Reveal.getCurrentSlide(),i=this.Reveal.getIndices(),a=null,r=this.Reveal.getConfig().rtl?"future":"past",s=this.Reveal.getConfig().rtl?"past":"future";if(Array.from(this.element.childNodes).forEach((function(e,n){e.classList.remove("past","present","future"),n<i.h?e.classList.add(r):n>i.h?e.classList.add(s):(e.classList.add("present"),a=e),(t||n===i.h)&&o(e,".slide-background").forEach((function(e,t){e.classList.remove("past","present","future"),t<i.v?e.classList.add("past"):t>i.v?e.classList.add("future"):(e.classList.add("present"),n===i.h&&(a=e))}))})),this.previousBackground&&this.Reveal.slideContent.stopEmbeddedContent(this.previousBackground,{unloadIframes:!this.Reveal.slideContent.shouldPreload(this.previousBackground)}),a){this.Reveal.slideContent.startEmbeddedContent(a);var l=a.querySelector(".slide-background-content");if(l){var 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