From 356a1cf3b74a83d3a773a28bc75dc13e764467fb Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Sun, 13 Oct 2013 13:08:50 -0400 Subject: [PATCH] group feature detection results in 'features' object, test for canvas and requestAnimationFrame --- js/reveal.js | 23 ++++++++++++----------- js/reveal.min.js | 4 ++-- 2 files changed, 14 insertions(+), 13 deletions(-) diff --git a/js/reveal.js b/js/reveal.js index 8811a4f..7a3b0e0 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -136,11 +136,8 @@ var Reveal = (function(){ // Cached references to DOM elements dom = {}, - // Client support for CSS 3D transforms, see #checkCapabilities() - supports3DTransforms, - - // Client support for CSS 2D transforms, see #checkCapabilities() - supports2DTransforms, + // Features supported by the browser, see #checkCapabilities() + features = {}, // Client is a mobile device, see #checkCapabilities() isMobileDevice, @@ -183,7 +180,7 @@ var Reveal = (function(){ checkCapabilities(); - if( !supports2DTransforms && !supports3DTransforms ) { + if( !features.transforms2d && !features.transforms3d ) { document.body.setAttribute( 'class', 'no-transforms' ); // If the browser doesn't support core features we won't be @@ -212,18 +209,22 @@ var Reveal = (function(){ */ function checkCapabilities() { - supports3DTransforms = 'WebkitPerspective' in document.body.style || + features.transforms3d = 'WebkitPerspective' in document.body.style || 'MozPerspective' in document.body.style || 'msPerspective' in document.body.style || 'OPerspective' in document.body.style || 'perspective' in document.body.style; - supports2DTransforms = 'WebkitTransform' in document.body.style || + features.transforms2d = 'WebkitTransform' in document.body.style || 'MozTransform' in document.body.style || 'msTransform' in document.body.style || 'OTransform' in document.body.style || 'transform' in document.body.style; + features.requestAnimationFrame = typeof window.requestAnimationFrame === 'function'; + + features.canvas = !!document.createElement( 'canvas' ).getContext; + isMobileDevice = navigator.userAgent.match( /(iphone|ipod|android)/gi ); } @@ -523,7 +524,7 @@ var Reveal = (function(){ if( typeof options === 'object' ) extend( config, options ); // Force linear transition based on browser capabilities - if( supports3DTransforms === false ) config.transition = 'linear'; + if( features.transforms3d === false ) config.transition = 'linear'; dom.wrapper.classList.add( config.transition ); @@ -886,7 +887,7 @@ var Reveal = (function(){ */ function enableRollingLinks() { - if( supports3DTransforms && !( 'msPerspective' in document.body.style ) ) { + if( features.transforms3d && !( 'msPerspective' in document.body.style ) ) { var anchors = document.querySelectorAll( SLIDES_SELECTOR + ' a:not(.image)' ); for( var i = 0, len = anchors.length; i < len; i++ ) { @@ -2472,7 +2473,7 @@ var Reveal = (function(){ event.preventDefault(); } // ESC or O key - else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && supports3DTransforms ) { + else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && features.transforms3d ) { if( dom.preview ) { closePreview(); } diff --git a/js/reveal.min.js b/js/reveal.min.js index 94ce16a..47a56e6 100644 --- a/js/reveal.min.js +++ b/js/reveal.min.js @@ -1,8 +1,8 @@ /*! - * reveal.js 2.6.0-dev (2013-10-13, 13:02) + * reveal.js 2.6.0-dev (2013-10-13, 13:08) * http://lab.hakim.se/reveal-js * MIT licensed * * Copyright (C) 2013 Hakim El Hattab, http://hakim.se */ -var Reveal=function(){"use strict";function a(a){return b(),Ob||Nb?(window.addEventListener("load",C,!1),l(Vb,a),l(Vb,Reveal.getQueryHash()),s(),c(),void 0):(document.body.setAttribute("class","no-transforms"),void 0)}function b(){Nb="WebkitPerspective"in document.body.style||"MozPerspective"in document.body.style||"msPerspective"in document.body.style||"OPerspective"in document.body.style||"perspective"in document.body.style,Ob="WebkitTransform"in document.body.style||"MozTransform"in document.body.style||"msTransform"in document.body.style||"OTransform"in document.body.style||"transform"in document.body.style,Pb=navigator.userAgent.match(/(iphone|ipod|android)/gi)}function c(){function a(){c.length&&head.js.apply(null,c),d()}for(var b=[],c=[],e=0,f=Vb.dependencies.length;f>e;e++){var g=Vb.dependencies[e];(!g.condition||g.condition())&&(g.async?c.push(g.src):b.push(g.src),"function"==typeof g.callback&&head.ready(g.src.match(/([\w\d_\-]*)\.?js$|[^\\\/]*$/i)[0],g.callback))}b.length?(head.ready(a),head.js.apply(null,b)):a()}function d(){f(),e(),i(),ab(),setTimeout(function(){$b.slides.classList.remove("no-transition"),Wb=!0,u("ready",{indexh:Jb,indexv:Kb,currentSlide:Mb})},1)}function e(){var a=m(document.querySelectorAll(Sb));a.forEach(function(a){var b=m(a.querySelectorAll("section"));b.forEach(function(a,b){b>0&&a.classList.add("future")})})}function f(){$b.theme=document.querySelector("#theme"),$b.wrapper=document.querySelector(".reveal"),$b.slides=document.querySelector(".reveal .slides"),$b.slides.classList.add("no-transition"),$b.background=g($b.wrapper,"div","backgrounds",null),$b.progress=g($b.wrapper,"div","progress",""),$b.progressbar=$b.progress.querySelector("span"),g($b.wrapper,"aside","controls",'
'),g($b.wrapper,"div","state-background",null),g($b.wrapper,"div","pause-overlay",null),$b.controls=document.querySelector(".reveal .controls"),$b.controlsLeft=m(document.querySelectorAll(".navigate-left")),$b.controlsRight=m(document.querySelectorAll(".navigate-right")),$b.controlsUp=m(document.querySelectorAll(".navigate-up")),$b.controlsDown=m(document.querySelectorAll(".navigate-down")),$b.controlsPrev=m(document.querySelectorAll(".navigate-prev")),$b.controlsNext=m(document.querySelectorAll(".navigate-next"))}function g(a,b,c,d){var e=a.querySelector("."+c);return e||(e=document.createElement(b),e.classList.add(c),null!==d&&(e.innerHTML=d),a.appendChild(e)),e}function h(){function a(a,b){var c={background:a.getAttribute("data-background"),backgroundSize:a.getAttribute("data-background-size"),backgroundImage:a.getAttribute("data-background-image"),backgroundColor:a.getAttribute("data-background-color"),backgroundRepeat:a.getAttribute("data-background-repeat"),backgroundPosition:a.getAttribute("data-background-position"),backgroundTransition:a.getAttribute("data-background-transition")},d=document.createElement("div");return d.className="slide-background",c.background&&(/^(http|file|\/\/)/gi.test(c.background)||/\.(svg|png|jpg|jpeg|gif|bmp)$/gi.test(c.background)?d.style.backgroundImage="url("+c.background+")":d.style.background=c.background),c.backgroundSize&&(d.style.backgroundSize=c.backgroundSize),c.backgroundImage&&(d.style.backgroundImage='url("'+c.backgroundImage+'")'),c.backgroundColor&&(d.style.backgroundColor=c.backgroundColor),c.backgroundRepeat&&(d.style.backgroundRepeat=c.backgroundRepeat),c.backgroundPosition&&(d.style.backgroundPosition=c.backgroundPosition),c.backgroundTransition&&d.setAttribute("data-background-transition",c.backgroundTransition),b.appendChild(d),d}r()&&document.body.classList.add("print-pdf"),$b.background.innerHTML="",$b.background.classList.add("no-transition"),m(document.querySelectorAll(Sb)).forEach(function(b){var c;c=r()?a(b,b):a(b,$b.background),m(b.querySelectorAll("section")).forEach(function(b){r()?a(b,b):a(b,c)})}),Vb.parallaxBackgroundImage?($b.background.style.backgroundImage='url("'+Vb.parallaxBackgroundImage+'")',$b.background.style.backgroundSize=Vb.parallaxBackgroundSize,setTimeout(function(){$b.wrapper.classList.add("has-parallax-background")},1)):($b.background.style.backgroundImage="",$b.wrapper.classList.remove("has-parallax-background"))}function i(a){if($b.wrapper.classList.remove(Vb.transition),"object"==typeof a&&l(Vb,a),Nb===!1&&(Vb.transition="linear"),$b.wrapper.classList.add(Vb.transition),$b.wrapper.setAttribute("data-transition-speed",Vb.transitionSpeed),$b.wrapper.setAttribute("data-background-transition",Vb.backgroundTransition),$b.controls.style.display=Vb.controls?"block":"none",$b.progress.style.display=Vb.progress?"block":"none",Vb.rtl?$b.wrapper.classList.add("rtl"):$b.wrapper.classList.remove("rtl"),Vb.center?$b.wrapper.classList.add("center"):$b.wrapper.classList.remove("center"),Vb.mouseWheel?(document.addEventListener("DOMMouseScroll",vb,!1),document.addEventListener("mousewheel",vb,!1)):(document.removeEventListener("DOMMouseScroll",vb,!1),document.removeEventListener("mousewheel",vb,!1)),Vb.rollingLinks?v():w(),Vb.previewLinks?x():(y(),x("[data-preview-link]")),Vb.autoSlide&&Vb.autoSlideStoppable?(Qb=new Ib($b.wrapper,function(){return.5}),Qb.setPlaying(!0)):Qb&&(Qb.destroy(),Qb=null),Vb.theme&&$b.theme){var b=$b.theme.getAttribute("href"),c=/[^\/]*?(?=\.css)/,d=b.match(c)[0];Vb.theme!==d&&(b=b.replace(c,Vb.theme),$b.theme.setAttribute("href",b))}R()}function j(){if(ec=!0,window.addEventListener("hashchange",Db,!1),window.addEventListener("resize",Eb,!1),Vb.touch&&($b.wrapper.addEventListener("touchstart",pb,!1),$b.wrapper.addEventListener("touchmove",qb,!1),$b.wrapper.addEventListener("touchend",rb,!1),window.navigator.msPointerEnabled&&($b.wrapper.addEventListener("MSPointerDown",sb,!1),$b.wrapper.addEventListener("MSPointerMove",tb,!1),$b.wrapper.addEventListener("MSPointerUp",ub,!1))),Vb.keyboard&&document.addEventListener("keydown",ob,!1),Vb.progress&&$b.progress&&$b.progress.addEventListener("click",wb,!1),Vb.focusBodyOnPageVisiblityChange){var a;"hidden"in document?a="visibilitychange":"msHidden"in document?a="msvisibilitychange":"webkitHidden"in document&&(a="webkitvisibilitychange"),a&&document.addEventListener(a,Fb,!1)}["touchstart","click"].forEach(function(a){$b.controlsLeft.forEach(function(b){b.addEventListener(a,xb,!1)}),$b.controlsRight.forEach(function(b){b.addEventListener(a,yb,!1)}),$b.controlsUp.forEach(function(b){b.addEventListener(a,zb,!1)}),$b.controlsDown.forEach(function(b){b.addEventListener(a,Ab,!1)}),$b.controlsPrev.forEach(function(b){b.addEventListener(a,Bb,!1)}),$b.controlsNext.forEach(function(b){b.addEventListener(a,Cb,!1)})})}function k(){ec=!1,document.removeEventListener("keydown",ob,!1),window.removeEventListener("hashchange",Db,!1),window.removeEventListener("resize",Eb,!1),$b.wrapper.removeEventListener("touchstart",pb,!1),$b.wrapper.removeEventListener("touchmove",qb,!1),$b.wrapper.removeEventListener("touchend",rb,!1),window.navigator.msPointerEnabled&&($b.wrapper.removeEventListener("MSPointerDown",sb,!1),$b.wrapper.removeEventListener("MSPointerMove",tb,!1),$b.wrapper.removeEventListener("MSPointerUp",ub,!1)),Vb.progress&&$b.progress&&$b.progress.removeEventListener("click",wb,!1),["touchstart","click"].forEach(function(a){$b.controlsLeft.forEach(function(b){b.removeEventListener(a,xb,!1)}),$b.controlsRight.forEach(function(b){b.removeEventListener(a,yb,!1)}),$b.controlsUp.forEach(function(b){b.removeEventListener(a,zb,!1)}),$b.controlsDown.forEach(function(b){b.removeEventListener(a,Ab,!1)}),$b.controlsPrev.forEach(function(b){b.removeEventListener(a,Bb,!1)}),$b.controlsNext.forEach(function(b){b.removeEventListener(a,Cb,!1)})})}function l(a,b){for(var c in b)a[c]=b[c]}function m(a){return Array.prototype.slice.call(a)}function n(a,b){var c=a.x-b.x,d=a.y-b.y;return Math.sqrt(c*c+d*d)}function o(a,b){a.style.WebkitTransform=b,a.style.MozTransform=b,a.style.msTransform=b,a.style.OTransform=b,a.style.transform=b}function p(a){var b=0;if(a){var c=0;m(a.childNodes).forEach(function(a){"number"==typeof a.offsetTop&&a.style&&("absolute"===a.style.position&&(c+=1),b=Math.max(b,a.offsetTop+a.offsetHeight))}),0===c&&(b=a.offsetHeight)}return b}function q(a,b){if(b=b||0,a){var c=a.parentNode,d=c.childNodes;m(d).forEach(function(c){if("number"==typeof c.offsetHeight&&c!==a){var d=window.getComputedStyle(c),e=parseInt(d.marginTop,10),f=parseInt(d.marginBottom,10);b-=c.offsetHeight+e+f}});var e=window.getComputedStyle(a);b-=parseInt(e.marginTop,10)+parseInt(e.marginBottom,10)}return b}function r(){return/print-pdf/gi.test(window.location.search)}function s(){Vb.hideAddressBar&&Pb&&(window.addEventListener("load",t,!1),window.addEventListener("orientationchange",t,!1))}function t(){0!==window.orientation||/crios/gi.test(navigator.userAgent)?(document.documentElement.style.overflow="",document.body.style.height="100%"):(document.documentElement.style.overflow="scroll",document.body.style.height="120%"),setTimeout(function(){window.scrollTo(0,1)},10)}function u(a,b){var c=document.createEvent("HTMLEvents",1,2);c.initEvent(a,!0,!0),l(c,b),$b.wrapper.dispatchEvent(c)}function v(){if(Nb&&!("msPerspective"in document.body.style))for(var a=document.querySelectorAll(Rb+" a:not(.image)"),b=0,c=a.length;c>b;b++){var d=a[b];if(!(!d.textContent||d.querySelector("*")||d.className&&d.classList.contains(d,"roll"))){var e=document.createElement("span");e.setAttribute("data-title",d.text),e.innerHTML=d.innerHTML,d.classList.add("roll"),d.innerHTML="",d.appendChild(e)}}}function w(){for(var a=document.querySelectorAll(Rb+" a.roll"),b=0,c=a.length;c>b;b++){var d=a[b],e=d.querySelector("span");e&&(d.classList.remove("roll"),d.innerHTML=e.innerHTML)}}function x(a){var b=m(document.querySelectorAll(a?a:"a"));b.forEach(function(a){/^(http|www)/gi.test(a.getAttribute("href"))&&a.addEventListener("click",Hb,!1)})}function y(){var a=m(document.querySelectorAll("a"));a.forEach(function(a){/^(http|www)/gi.test(a.getAttribute("href"))&&a.removeEventListener("click",Hb,!1)})}function z(a){A(),$b.preview=document.createElement("div"),$b.preview.classList.add("preview-link-overlay"),$b.wrapper.appendChild($b.preview),$b.preview.innerHTML=["
",'','',"
",'','
','',"
"].join(""),$b.preview.querySelector("iframe").addEventListener("load",function(){$b.preview.classList.add("loaded")},!1),$b.preview.querySelector(".close").addEventListener("click",function(a){A(),a.preventDefault()},!1),$b.preview.querySelector(".external").addEventListener("click",function(){A()},!1),setTimeout(function(){$b.preview.classList.add("visible")},1)}function A(){$b.preview&&($b.preview.setAttribute("src",""),$b.preview.parentNode.removeChild($b.preview),$b.preview=null)}function B(a){var b=m(a);return b.forEach(function(a,b){a.hasAttribute("data-fragment-index")||a.setAttribute("data-fragment-index",b)}),b.sort(function(a,b){return a.getAttribute("data-fragment-index")-b.getAttribute("data-fragment-index")}),b}function C(){if($b.wrapper&&!r()){var a=$b.wrapper.offsetWidth,b=$b.wrapper.offsetHeight;a-=b*Vb.margin,b-=b*Vb.margin;var c=Vb.width,d=Vb.height,e=20;D(Vb.width,Vb.height,e),"string"==typeof c&&/%$/.test(c)&&(c=parseInt(c,10)/100*a),"string"==typeof d&&/%$/.test(d)&&(d=parseInt(d,10)/100*b),$b.slides.style.width=c+"px",$b.slides.style.height=d+"px",Zb=Math.min(a/c,b/d),Zb=Math.max(Zb,Vb.minScale),Zb=Math.min(Zb,Vb.maxScale),"undefined"==typeof $b.slides.style.zoom||navigator.userAgent.match(/(iphone|ipod|ipad|android)/gi)?o($b.slides,"translate(-50%, -50%) scale("+Zb+") translate(50%, 50%)"):$b.slides.style.zoom=Zb;for(var f=m(document.querySelectorAll(Rb)),g=0,h=f.length;h>g;g++){var i=f[g];"none"!==i.style.display&&(i.style.top=Vb.center?i.classList.contains("stack")?0:Math.max(-(p(i)/2)-e,-d/2)+"px":"")}U(),X()}}function D(a,b,c){m($b.slides.querySelectorAll("section > .stretch")).forEach(function(d){var e=q(d,b-2*c);if(/(img|video)/gi.test(d.nodeName)){var f=d.naturalWidth||d.videoWidth,g=d.naturalHeight||d.videoHeight,h=Math.min(a/f,e/g);d.style.width=f*h+"px",d.style.height=g*h+"px"}else d.style.width=a+"px",d.style.height=e+"px"})}function E(a,b){"object"==typeof a&&"function"==typeof a.setAttribute&&a.setAttribute("data-previous-indexv",b||0)}function F(a){if("object"==typeof a&&"function"==typeof a.setAttribute&&a.classList.contains("stack")){var b=a.hasAttribute("data-start-indexv")?"data-start-indexv":"data-previous-indexv";return parseInt(a.getAttribute(b)||0,10)}return 0}function G(){if(Vb.overview){gb();var a=$b.wrapper.classList.contains("overview"),b=window.innerWidth<400?1e3:2500;$b.wrapper.classList.add("overview"),$b.wrapper.classList.remove("overview-deactivating"),clearTimeout(cc),clearTimeout(dc),cc=setTimeout(function(){for(var c=document.querySelectorAll(Sb),d=0,e=c.length;e>d;d++){var f=c[d],g=Vb.rtl?-105:105;if(f.setAttribute("data-index-h",d),o(f,"translateZ(-"+b+"px) translate("+(d-Jb)*g+"%, 0%)"),f.classList.contains("stack"))for(var h=f.querySelectorAll("section"),i=0,j=h.length;j>i;i++){var k=d===Jb?Kb:F(f),l=h[i];l.setAttribute("data-index-h",d),l.setAttribute("data-index-v",i),o(l,"translate(0%, "+105*(i-k)+"%)"),l.addEventListener("click",Gb,!0)}else f.addEventListener("click",Gb,!0)}T(),C(),a||u("overviewshown",{indexh:Jb,indexv:Kb,currentSlide:Mb})},10)}}function H(){Vb.overview&&(clearTimeout(cc),clearTimeout(dc),$b.wrapper.classList.remove("overview"),$b.wrapper.classList.add("overview-deactivating"),dc=setTimeout(function(){$b.wrapper.classList.remove("overview-deactivating")},1),m(document.querySelectorAll(Rb)).forEach(function(a){o(a,""),a.removeEventListener("click",Gb,!0)}),Q(Jb,Kb),fb(),u("overviewhidden",{indexh:Jb,indexv:Kb,currentSlide:Mb}))}function I(a){"boolean"==typeof a?a?G():H():J()?H():G()}function J(){return $b.wrapper.classList.contains("overview")}function K(a){return a=a?a:Mb,a&&a.parentNode&&!!a.parentNode.nodeName.match(/section/i)}function L(){var a=document.body,b=a.requestFullScreen||a.webkitRequestFullscreen||a.webkitRequestFullScreen||a.mozRequestFullScreen||a.msRequestFullScreen;b&&b.apply(a)}function M(){var a=$b.wrapper.classList.contains("paused");gb(),$b.wrapper.classList.add("paused"),a===!1&&u("paused")}function N(){var a=$b.wrapper.classList.contains("paused");$b.wrapper.classList.remove("paused"),fb(),a&&u("resumed")}function O(){P()?N():M()}function P(){return $b.wrapper.classList.contains("paused")}function Q(a,b,c,d){Lb=Mb;var e=document.querySelectorAll(Sb);void 0===b&&(b=F(e[a])),Lb&&Lb.parentNode&&Lb.parentNode.classList.contains("stack")&&E(Lb.parentNode,Kb);var f=Yb.concat();Yb.length=0;var g=Jb||0,h=Kb||0;Jb=S(Sb,void 0===a?Jb:a),Kb=S(Tb,void 0===b?Kb:b),T(),C();a:for(var i=0,j=Yb.length;j>i;i++){for(var k=0;kb?a.classList.add("visible"):a.classList.remove("visible")})}var p=Jb!==g||Kb!==h;p?u("slidechanged",{indexh:Jb,indexv:Kb,previousSlide:Lb,currentSlide:Mb,origin:d}):Lb=null,Lb&&(Lb.classList.remove("present"),document.querySelector(Ub).classList.contains("present")&&setTimeout(function(){var a,b=m(document.querySelectorAll(Sb+".stack"));for(a in b)b[a]&&E(b[a],0)},0)),p&&(_(Lb),$(Mb)),V(),U(),W(),X(),bb()}function R(){k(),j(),C(),Xb=Vb.autoSlide,fb(),h(),V(),U(),W()}function S(a,b){var c=m(document.querySelectorAll(a)),d=c.length;if(d){Vb.loop&&(b%=d,0>b&&(b=d+b)),b=Math.max(Math.min(b,d-1),0);for(var e=0;d>e;e++){var f=c[e],g=Vb.rtl&&!K(f);if(f.classList.remove("past"),f.classList.remove("present"),f.classList.remove("future"),f.setAttribute("hidden",""),b>e)f.classList.add(g?"future":"past");else if(e>b){f.classList.add(g?"past":"future");for(var h=m(f.querySelectorAll(".fragment.visible"));h.length;)h.pop().classList.remove("visible")}f.querySelector("section")&&f.classList.add("stack")}c[b].classList.add("present"),c[b].removeAttribute("hidden");var i=c[b].getAttribute("data-state");i&&(Yb=Yb.concat(i.split(" ")));var j=c[b].getAttribute("data-autoslide");Xb=j?parseInt(j,10):Vb.autoSlide,fb()}else b=0;return b}function T(){var a,b,c=m(document.querySelectorAll(Sb)),d=c.length;if(d){var e=J()?10:Vb.viewDistance;Pb&&(e=J()?6:1);for(var f=0;d>f;f++){var g=c[f],h=m(g.querySelectorAll("section")),i=h.length;if(a=Math.abs((Jb-f)%(d-e))||0,g.style.display=a>e?"none":"block",i)for(var j=F(g),k=0;i>k;k++){var l=h[k];b=f===Jb?Math.abs(Kb-k):Math.abs(k-j),l.style.display=a+b>e?"none":"block"}}}}function U(){if(Vb.progress&&$b.progress){var a=m(document.querySelectorAll(Sb)),b=document.querySelectorAll(Rb+":not(.stack)").length,c=0;a:for(var d=0;db?c:b>Jb?d:"present"),m(a.childNodes).forEach(function(a,b){a.className="slide-background "+(Kb>b?"past":b>Kb?"future":"present")})}),setTimeout(function(){$b.background.classList.remove("no-transition")},1)}function X(){if(Vb.parallaxBackgroundImage){var a,b,c=document.querySelectorAll(Sb),d=document.querySelectorAll(Tb),e=$b.background.style.backgroundSize.split(" ");1===e.length?a=b=parseInt(e[0],10):(a=parseInt(e[0],10),b=parseInt(e[1],10));var f=$b.background.offsetWidth,g=c.length,h=-(a-f)/(g-1)*Jb,i=$b.background.offsetHeight,j=d.length,k=j>0?-(b-i)/(j-1)*Kb:0;$b.background.style.backgroundPosition=h+"px "+k+"px"}}function Y(){var a=document.querySelectorAll(Sb),b=document.querySelectorAll(Tb),c={left:Jb>0||Vb.loop,right:Jb0,down:Kb0,next:!!b.length}}return{prev:!1,next:!1}}function $(a){a&&(m(a.querySelectorAll("video, audio")).forEach(function(a){a.hasAttribute("data-autoplay")&&a.play()}),m(a.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(a){a.hasAttribute("data-autoplay")&&a.contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}',"*")}))}function _(a){a&&(m(a.querySelectorAll("video, audio")).forEach(function(a){a.hasAttribute("data-ignore")||a.pause()}),m(a.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(a){a.hasAttribute("data-ignore")||"function"!=typeof a.contentWindow.postMessage||a.contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}',"*")}))}function ab(){var a=window.location.hash,b=a.slice(2).split("/"),c=a.replace(/#|\//gi,"");if(isNaN(parseInt(b[0],10))&&c.length){var d=document.querySelector("#"+c);if(d){var e=Reveal.getIndices(d);Q(e.h,e.v)}else Q(Jb||0,Kb||0)}else{var f=parseInt(b[0],10)||0,g=parseInt(b[1],10)||0;(f!==Jb||g!==Kb)&&Q(f,g)}}function bb(a){if(Vb.history)if(clearTimeout(bc),"number"==typeof a)bc=setTimeout(bb,a);else{var b="/";Mb&&"string"==typeof Mb.getAttribute("id")?b="/"+Mb.getAttribute("id"):((Jb>0||Kb>0)&&(b+=Jb),Kb>0&&(b+="/"+Kb)),window.location.hash=b}}function cb(a){var b,c=Jb,d=Kb;if(a){var e=K(a),f=e?a.parentNode:a,g=m(document.querySelectorAll(Sb));c=Math.max(g.indexOf(f),0),e&&(d=Math.max(m(a.parentNode.querySelectorAll("section")).indexOf(a),0))}if(!a&&Mb){var h=Mb.querySelectorAll(".fragment").length>0;if(h){var i=Mb.querySelectorAll(".fragment.visible");b=i.length}}return{h:c,v:d,f:b}}function db(){if(Mb&&Vb.fragments){var a=B(Mb.querySelectorAll(".fragment:not(.visible)"));if(a.length){var b=a[0].getAttribute("data-fragment-index");return a=Mb.querySelectorAll('.fragment[data-fragment-index="'+b+'"]'),m(a).forEach(function(a){a.classList.add("visible")}),u("fragmentshown",{fragment:a[0],fragments:a}),V(),!0}}return!1}function eb(){if(Mb&&Vb.fragments){var a=B(Mb.querySelectorAll(".fragment.visible"));if(a.length){var b=a[a.length-1].getAttribute("data-fragment-index");return a=Mb.querySelectorAll('.fragment[data-fragment-index="'+b+'"]'),m(a).forEach(function(a){a.classList.remove("visible")}),u("fragmenthidden",{fragment:a[0],fragments:a}),V(),!0}}return!1}function fb(){clearTimeout(ac),!Xb||P()||J()||(ac=setTimeout(mb,Xb))}function gb(){clearTimeout(ac)}function hb(){Vb.rtl?(J()||db()===!1)&&Y().left&&Q(Jb+1):(J()||eb()===!1)&&Y().left&&Q(Jb-1)}function ib(){Vb.rtl?(J()||eb()===!1)&&Y().right&&Q(Jb-1):(J()||db()===!1)&&Y().right&&Q(Jb+1)}function jb(){(J()||eb()===!1)&&Y().up&&Q(Jb,Kb-1)}function kb(){(J()||db()===!1)&&Y().down&&Q(Jb,Kb+1)}function lb(){if(eb()===!1)if(Y().up)jb();else{var a=document.querySelector(Sb+".past:nth-child("+Jb+")");if(a){var b=a.querySelectorAll("section").length-1||void 0,c=Jb-1;Q(c,b)}}}function mb(){db()===!1&&(Y().down?kb():ib()),fb()}function nb(){Vb.autoSlideStoppable&&(Vb.autoSlide=0,gb())}function ob(a){document.activeElement;var b=!(!document.activeElement||!document.activeElement.type&&!document.activeElement.href&&"inherit"===document.activeElement.contentEditable);if(!(b||a.shiftKey&&32!==a.keyCode||a.altKey||a.ctrlKey||a.metaKey)){if(P()&&-1===[66,190,191].indexOf(a.keyCode))return!1;var c=!1;if("object"==typeof Vb.keyboard)for(var d in Vb.keyboard)if(parseInt(d,10)===a.keyCode){var e=Vb.keyboard[d];"function"==typeof e?e.apply(null,[a]):"string"==typeof e&&"function"==typeof Reveal[e]&&Reveal[e].call(),c=!0}if(c===!1)switch(c=!0,a.keyCode){case 80:case 33:lb();break;case 78:case 34:mb();break;case 72:case 37:hb();break;case 76:case 39:ib();break;case 75:case 38:jb();break;case 74:case 40:kb();break;case 36:Q(0);break;case 35:Q(Number.MAX_VALUE);break;case 32:J()?H():a.shiftKey?lb():mb();break;case 13:J()?H():c=!1;break;case 66:case 190:case 191:O();break;case 70:L();break;default:c=!1}c?a.preventDefault():27!==a.keyCode&&79!==a.keyCode||!Nb||($b.preview?A():I(),a.preventDefault()),fb(),nb(a)}}function pb(a){fc.startX=a.touches[0].clientX,fc.startY=a.touches[0].clientY,fc.startCount=a.touches.length,2===a.touches.length&&Vb.overview&&(fc.startSpan=n({x:a.touches[1].clientX,y:a.touches[1].clientY},{x:fc.startX,y:fc.startY})),nb(a)}function qb(a){if(fc.captured)navigator.userAgent.match(/android/gi)&&a.preventDefault();else{var b=a.touches[0].clientX,c=a.touches[0].clientY;if(2===a.touches.length&&2===fc.startCount&&Vb.overview){var d=n({x:a.touches[1].clientX,y:a.touches[1].clientY},{x:fc.startX,y:fc.startY});Math.abs(fc.startSpan-d)>fc.threshold&&(fc.captured=!0,dfc.threshold&&Math.abs(e)>Math.abs(f)?(fc.captured=!0,hb()):e<-fc.threshold&&Math.abs(e)>Math.abs(f)?(fc.captured=!0,ib()):f>fc.threshold?(fc.captured=!0,jb()):f<-fc.threshold&&(fc.captured=!0,kb()),Vb.embedded?(fc.captured||K(Mb))&&a.preventDefault():a.preventDefault()}}}function rb(){fc.captured=!1}function sb(a){a.pointerType===a.MSPOINTER_TYPE_TOUCH&&(a.touches=[{clientX:a.clientX,clientY:a.clientY}],pb(a)),nb(a)}function tb(a){a.pointerType===a.MSPOINTER_TYPE_TOUCH&&(a.touches=[{clientX:a.clientX,clientY:a.clientY}],qb(a))}function ub(a){a.pointerType===a.MSPOINTER_TYPE_TOUCH&&(a.touches=[{clientX:a.clientX,clientY:a.clientY}],rb(a))}function vb(a){if(Date.now()-_b>600){_b=Date.now();var b=a.detail||-a.wheelDelta;b>0?mb():lb()}}function wb(a){a.preventDefault();var b=m(document.querySelectorAll(Sb)).length,c=Math.floor(a.clientX/$b.wrapper.offsetWidth*b);Q(c),nb(a)}function xb(a){a.preventDefault(),hb(),nb()}function yb(a){a.preventDefault(),ib(),nb()}function zb(a){a.preventDefault(),jb(),nb()}function Ab(a){a.preventDefault(),kb(),nb()}function Bb(a){a.preventDefault(),lb(),nb()}function Cb(a){a.preventDefault(),mb(),nb()}function Db(){ab()}function Eb(){C()}function Fb(){var a=document.webkitHidden||document.msHidden||document.hidden;a===!1&&document.activeElement!==document.body&&(document.activeElement.blur(),document.body.focus())}function Gb(a){if(ec&&J()){a.preventDefault();for(var b=a.target;b&&!b.nodeName.match(/section/gi);)b=b.parentNode;if(b&&!b.classList.contains("disabled")&&(H(),b.nodeName.match(/section/gi))){var c=parseInt(b.getAttribute("data-index-h"),10),d=parseInt(b.getAttribute("data-index-v"),10);Q(c,d)}}}function Hb(a){var b=a.target.getAttribute("href");b&&(z(b),a.preventDefault())}function Ib(a,b){this.size=50,this.thickness=3,this.playing=!1,this.progress=0,this.container=a,this.progressCheck=b,this.canvas=document.createElement("canvas"),this.canvas.className="playback",this.canvas.width=this.size,this.canvas.height=this.size,this.context=this.canvas.getContext("2d"),this.container.appendChild(this.canvas),this.render()}var Jb,Kb,Lb,Mb,Nb,Ob,Pb,Qb,Rb=".reveal .slides section",Sb=".reveal .slides>section",Tb=".reveal .slides>section.present>section",Ub=".reveal .slides>section:first-child",Vb={width:960,height:700,margin:.1,minScale:.2,maxScale:1,controls:!0,progress:!0,history:!1,keyboard:!0,overview:!0,center:!0,touch:!0,loop:!1,rtl:!1,fragments:!0,embedded:!1,autoSlide:0,autoSlideStoppable:!1,mouseWheel:!1,rollingLinks:!1,hideAddressBar:!0,previewLinks:!1,focusBodyOnPageVisiblityChange:!0,theme:null,transition:"default",transitionSpeed:"default",backgroundTransition:"default",parallaxBackgroundImage:"",parallaxBackgroundSize:"",viewDistance:3,dependencies:[]},Wb=!1,Xb=0,Yb=[],Zb=1,$b={},_b=0,ac=0,bc=0,cc=0,dc=0,ec=!1,fc={startX:0,startY:0,startSpan:0,startCount:0,captured:!1,threshold:40};return Ib.prototype.setPlaying=function(a){this.playing=a,this.render(),this.playing&&this.update()},Ib.prototype.setProgress=function(a){this.progress=a,this.render()},Ib.prototype.update=function(){this.progress=this.progressCheck(),this.render(),this.playing&&window.requestAnimationFrame(this.update.bind(this))},Ib.prototype.render=function(){var a=this.size/2-this.thickness,b=this.size/2,c=this.size/2,d=-Math.PI/2,e=d+this.progress*2*Math.PI;this.context.save(),this.context.clearRect(0,0,this.size,this.size),this.context.beginPath(),this.context.arc(b,c,a,0,2*Math.PI,!1),this.context.fillStyle="rgba(0,0,0,0.2)",this.context.fill(),this.context.beginPath(),this.context.arc(b,c,a,0,2*Math.PI,!1),this.context.lineWidth=this.thickness,this.context.strokeStyle="#666",this.context.stroke(),this.context.beginPath(),this.context.arc(b,c,a,d,e,!1),this.context.lineWidth=this.thickness,this.context.strokeStyle="#fff",this.context.stroke(),this.context.restore()},Ib.prototype.destroy=function(){this.canvas.parentNode&&this.container.removeChild(this.canvas)},{initialize:a,configure:i,sync:R,slide:Q,left:hb,right:ib,up:jb,down:kb,prev:lb,next:mb,prevFragment:eb,nextFragment:db,navigateTo:Q,navigateLeft:hb,navigateRight:ib,navigateUp:jb,navigateDown:kb,navigatePrev:lb,navigateNext:mb,layout:C,availableRoutes:Y,availableFragments:Z,toggleOverview:I,togglePause:O,isOverview:J,isPaused:P,addEventListeners:j,removeEventListeners:k,getIndices:cb,getSlide:function(a,b){var c=document.querySelectorAll(Sb)[a],d=c&&c.querySelectorAll("section");return"undefined"!=typeof b?d?d[b]:void 0:c},getPreviousSlide:function(){return Lb},getCurrentSlide:function(){return Mb},getScale:function(){return Zb},getConfig:function(){return Vb},getQueryHash:function(){var a={};location.search.replace(/[A-Z0-9]+?=(\w*)/gi,function(b){a[b.split("=").shift()]=b.split("=").pop()});for(var b in a){var c=a[b];"null"===c?a[b]=null:"true"===c?a[b]=!0:"false"===c?a[b]=!1:isNaN(parseFloat(c))||(a[b]=parseFloat(c))}return a},isFirstSlide:function(){return null==document.querySelector(Rb+".past")?!0:!1},isLastSlide:function(){return Mb?Mb.nextElementSibling?!1:K(Mb)&&Mb.parentNode.nextElementSibling?!1:!0:!1},isReady:function(){return Wb},addEventListener:function(a,b,c){"addEventListener"in window&&($b.wrapper||document.querySelector(".reveal")).addEventListener(a,b,c)},removeEventListener:function(a,b,c){"addEventListener"in window&&($b.wrapper||document.querySelector(".reveal")).removeEventListener(a,b,c)}}}(); \ No newline at end of file +var Reveal=function(){"use strict";function a(a){return b(),Zb.transforms2d||Zb.transforms3d?(window.addEventListener("load",C,!1),l(Tb,a),l(Tb,Reveal.getQueryHash()),s(),c(),void 0):(document.body.setAttribute("class","no-transforms"),void 0)}function b(){Zb.transforms3d="WebkitPerspective"in document.body.style||"MozPerspective"in document.body.style||"msPerspective"in document.body.style||"OPerspective"in document.body.style||"perspective"in document.body.style,Zb.transforms2d="WebkitTransform"in document.body.style||"MozTransform"in document.body.style||"msTransform"in document.body.style||"OTransform"in document.body.style||"transform"in document.body.style,Zb.requestAnimationFrame="function"==typeof window.requestAnimationFrame,Zb.canvas=!!document.createElement("canvas").getContext,Nb=navigator.userAgent.match(/(iphone|ipod|android)/gi)}function c(){function a(){c.length&&head.js.apply(null,c),d()}for(var b=[],c=[],e=0,f=Tb.dependencies.length;f>e;e++){var g=Tb.dependencies[e];(!g.condition||g.condition())&&(g.async?c.push(g.src):b.push(g.src),"function"==typeof g.callback&&head.ready(g.src.match(/([\w\d_\-]*)\.?js$|[^\\\/]*$/i)[0],g.callback))}b.length?(head.ready(a),head.js.apply(null,b)):a()}function d(){f(),e(),i(),ab(),setTimeout(function(){Yb.slides.classList.remove("no-transition"),Ub=!0,u("ready",{indexh:Jb,indexv:Kb,currentSlide:Mb})},1)}function e(){var a=m(document.querySelectorAll(Qb));a.forEach(function(a){var b=m(a.querySelectorAll("section"));b.forEach(function(a,b){b>0&&a.classList.add("future")})})}function f(){Yb.theme=document.querySelector("#theme"),Yb.wrapper=document.querySelector(".reveal"),Yb.slides=document.querySelector(".reveal .slides"),Yb.slides.classList.add("no-transition"),Yb.background=g(Yb.wrapper,"div","backgrounds",null),Yb.progress=g(Yb.wrapper,"div","progress",""),Yb.progressbar=Yb.progress.querySelector("span"),g(Yb.wrapper,"aside","controls",'
'),g(Yb.wrapper,"div","state-background",null),g(Yb.wrapper,"div","pause-overlay",null),Yb.controls=document.querySelector(".reveal .controls"),Yb.controlsLeft=m(document.querySelectorAll(".navigate-left")),Yb.controlsRight=m(document.querySelectorAll(".navigate-right")),Yb.controlsUp=m(document.querySelectorAll(".navigate-up")),Yb.controlsDown=m(document.querySelectorAll(".navigate-down")),Yb.controlsPrev=m(document.querySelectorAll(".navigate-prev")),Yb.controlsNext=m(document.querySelectorAll(".navigate-next"))}function g(a,b,c,d){var e=a.querySelector("."+c);return e||(e=document.createElement(b),e.classList.add(c),null!==d&&(e.innerHTML=d),a.appendChild(e)),e}function h(){function a(a,b){var c={background:a.getAttribute("data-background"),backgroundSize:a.getAttribute("data-background-size"),backgroundImage:a.getAttribute("data-background-image"),backgroundColor:a.getAttribute("data-background-color"),backgroundRepeat:a.getAttribute("data-background-repeat"),backgroundPosition:a.getAttribute("data-background-position"),backgroundTransition:a.getAttribute("data-background-transition")},d=document.createElement("div");return d.className="slide-background",c.background&&(/^(http|file|\/\/)/gi.test(c.background)||/\.(svg|png|jpg|jpeg|gif|bmp)$/gi.test(c.background)?d.style.backgroundImage="url("+c.background+")":d.style.background=c.background),c.backgroundSize&&(d.style.backgroundSize=c.backgroundSize),c.backgroundImage&&(d.style.backgroundImage='url("'+c.backgroundImage+'")'),c.backgroundColor&&(d.style.backgroundColor=c.backgroundColor),c.backgroundRepeat&&(d.style.backgroundRepeat=c.backgroundRepeat),c.backgroundPosition&&(d.style.backgroundPosition=c.backgroundPosition),c.backgroundTransition&&d.setAttribute("data-background-transition",c.backgroundTransition),b.appendChild(d),d}r()&&document.body.classList.add("print-pdf"),Yb.background.innerHTML="",Yb.background.classList.add("no-transition"),m(document.querySelectorAll(Qb)).forEach(function(b){var c;c=r()?a(b,b):a(b,Yb.background),m(b.querySelectorAll("section")).forEach(function(b){r()?a(b,b):a(b,c)})}),Tb.parallaxBackgroundImage?(Yb.background.style.backgroundImage='url("'+Tb.parallaxBackgroundImage+'")',Yb.background.style.backgroundSize=Tb.parallaxBackgroundSize,setTimeout(function(){Yb.wrapper.classList.add("has-parallax-background")},1)):(Yb.background.style.backgroundImage="",Yb.wrapper.classList.remove("has-parallax-background"))}function i(a){if(Yb.wrapper.classList.remove(Tb.transition),"object"==typeof a&&l(Tb,a),Zb.transforms3d===!1&&(Tb.transition="linear"),Yb.wrapper.classList.add(Tb.transition),Yb.wrapper.setAttribute("data-transition-speed",Tb.transitionSpeed),Yb.wrapper.setAttribute("data-background-transition",Tb.backgroundTransition),Yb.controls.style.display=Tb.controls?"block":"none",Yb.progress.style.display=Tb.progress?"block":"none",Tb.rtl?Yb.wrapper.classList.add("rtl"):Yb.wrapper.classList.remove("rtl"),Tb.center?Yb.wrapper.classList.add("center"):Yb.wrapper.classList.remove("center"),Tb.mouseWheel?(document.addEventListener("DOMMouseScroll",vb,!1),document.addEventListener("mousewheel",vb,!1)):(document.removeEventListener("DOMMouseScroll",vb,!1),document.removeEventListener("mousewheel",vb,!1)),Tb.rollingLinks?v():w(),Tb.previewLinks?x():(y(),x("[data-preview-link]")),Tb.autoSlide&&Tb.autoSlideStoppable?(Ob=new Ib(Yb.wrapper,function(){return.5}),Ob.setPlaying(!0)):Ob&&(Ob.destroy(),Ob=null),Tb.theme&&Yb.theme){var b=Yb.theme.getAttribute("href"),c=/[^\/]*?(?=\.css)/,d=b.match(c)[0];Tb.theme!==d&&(b=b.replace(c,Tb.theme),Yb.theme.setAttribute("href",b))}R()}function j(){if(dc=!0,window.addEventListener("hashchange",Db,!1),window.addEventListener("resize",Eb,!1),Tb.touch&&(Yb.wrapper.addEventListener("touchstart",pb,!1),Yb.wrapper.addEventListener("touchmove",qb,!1),Yb.wrapper.addEventListener("touchend",rb,!1),window.navigator.msPointerEnabled&&(Yb.wrapper.addEventListener("MSPointerDown",sb,!1),Yb.wrapper.addEventListener("MSPointerMove",tb,!1),Yb.wrapper.addEventListener("MSPointerUp",ub,!1))),Tb.keyboard&&document.addEventListener("keydown",ob,!1),Tb.progress&&Yb.progress&&Yb.progress.addEventListener("click",wb,!1),Tb.focusBodyOnPageVisiblityChange){var a;"hidden"in document?a="visibilitychange":"msHidden"in document?a="msvisibilitychange":"webkitHidden"in document&&(a="webkitvisibilitychange"),a&&document.addEventListener(a,Fb,!1)}["touchstart","click"].forEach(function(a){Yb.controlsLeft.forEach(function(b){b.addEventListener(a,xb,!1)}),Yb.controlsRight.forEach(function(b){b.addEventListener(a,yb,!1)}),Yb.controlsUp.forEach(function(b){b.addEventListener(a,zb,!1)}),Yb.controlsDown.forEach(function(b){b.addEventListener(a,Ab,!1)}),Yb.controlsPrev.forEach(function(b){b.addEventListener(a,Bb,!1)}),Yb.controlsNext.forEach(function(b){b.addEventListener(a,Cb,!1)})})}function k(){dc=!1,document.removeEventListener("keydown",ob,!1),window.removeEventListener("hashchange",Db,!1),window.removeEventListener("resize",Eb,!1),Yb.wrapper.removeEventListener("touchstart",pb,!1),Yb.wrapper.removeEventListener("touchmove",qb,!1),Yb.wrapper.removeEventListener("touchend",rb,!1),window.navigator.msPointerEnabled&&(Yb.wrapper.removeEventListener("MSPointerDown",sb,!1),Yb.wrapper.removeEventListener("MSPointerMove",tb,!1),Yb.wrapper.removeEventListener("MSPointerUp",ub,!1)),Tb.progress&&Yb.progress&&Yb.progress.removeEventListener("click",wb,!1),["touchstart","click"].forEach(function(a){Yb.controlsLeft.forEach(function(b){b.removeEventListener(a,xb,!1)}),Yb.controlsRight.forEach(function(b){b.removeEventListener(a,yb,!1)}),Yb.controlsUp.forEach(function(b){b.removeEventListener(a,zb,!1)}),Yb.controlsDown.forEach(function(b){b.removeEventListener(a,Ab,!1)}),Yb.controlsPrev.forEach(function(b){b.removeEventListener(a,Bb,!1)}),Yb.controlsNext.forEach(function(b){b.removeEventListener(a,Cb,!1)})})}function l(a,b){for(var c in b)a[c]=b[c]}function m(a){return Array.prototype.slice.call(a)}function n(a,b){var c=a.x-b.x,d=a.y-b.y;return Math.sqrt(c*c+d*d)}function o(a,b){a.style.WebkitTransform=b,a.style.MozTransform=b,a.style.msTransform=b,a.style.OTransform=b,a.style.transform=b}function p(a){var b=0;if(a){var c=0;m(a.childNodes).forEach(function(a){"number"==typeof a.offsetTop&&a.style&&("absolute"===a.style.position&&(c+=1),b=Math.max(b,a.offsetTop+a.offsetHeight))}),0===c&&(b=a.offsetHeight)}return b}function q(a,b){if(b=b||0,a){var c=a.parentNode,d=c.childNodes;m(d).forEach(function(c){if("number"==typeof c.offsetHeight&&c!==a){var d=window.getComputedStyle(c),e=parseInt(d.marginTop,10),f=parseInt(d.marginBottom,10);b-=c.offsetHeight+e+f}});var e=window.getComputedStyle(a);b-=parseInt(e.marginTop,10)+parseInt(e.marginBottom,10)}return b}function r(){return/print-pdf/gi.test(window.location.search)}function s(){Tb.hideAddressBar&&Nb&&(window.addEventListener("load",t,!1),window.addEventListener("orientationchange",t,!1))}function t(){0!==window.orientation||/crios/gi.test(navigator.userAgent)?(document.documentElement.style.overflow="",document.body.style.height="100%"):(document.documentElement.style.overflow="scroll",document.body.style.height="120%"),setTimeout(function(){window.scrollTo(0,1)},10)}function u(a,b){var c=document.createEvent("HTMLEvents",1,2);c.initEvent(a,!0,!0),l(c,b),Yb.wrapper.dispatchEvent(c)}function v(){if(Zb.transforms3d&&!("msPerspective"in document.body.style))for(var a=document.querySelectorAll(Pb+" a:not(.image)"),b=0,c=a.length;c>b;b++){var d=a[b];if(!(!d.textContent||d.querySelector("*")||d.className&&d.classList.contains(d,"roll"))){var e=document.createElement("span");e.setAttribute("data-title",d.text),e.innerHTML=d.innerHTML,d.classList.add("roll"),d.innerHTML="",d.appendChild(e)}}}function w(){for(var a=document.querySelectorAll(Pb+" a.roll"),b=0,c=a.length;c>b;b++){var d=a[b],e=d.querySelector("span");e&&(d.classList.remove("roll"),d.innerHTML=e.innerHTML)}}function x(a){var b=m(document.querySelectorAll(a?a:"a"));b.forEach(function(a){/^(http|www)/gi.test(a.getAttribute("href"))&&a.addEventListener("click",Hb,!1)})}function y(){var a=m(document.querySelectorAll("a"));a.forEach(function(a){/^(http|www)/gi.test(a.getAttribute("href"))&&a.removeEventListener("click",Hb,!1)})}function z(a){A(),Yb.preview=document.createElement("div"),Yb.preview.classList.add("preview-link-overlay"),Yb.wrapper.appendChild(Yb.preview),Yb.preview.innerHTML=["
",'','',"
",'','
','',"
"].join(""),Yb.preview.querySelector("iframe").addEventListener("load",function(){Yb.preview.classList.add("loaded")},!1),Yb.preview.querySelector(".close").addEventListener("click",function(a){A(),a.preventDefault()},!1),Yb.preview.querySelector(".external").addEventListener("click",function(){A()},!1),setTimeout(function(){Yb.preview.classList.add("visible")},1)}function A(){Yb.preview&&(Yb.preview.setAttribute("src",""),Yb.preview.parentNode.removeChild(Yb.preview),Yb.preview=null)}function B(a){var b=m(a);return b.forEach(function(a,b){a.hasAttribute("data-fragment-index")||a.setAttribute("data-fragment-index",b)}),b.sort(function(a,b){return a.getAttribute("data-fragment-index")-b.getAttribute("data-fragment-index")}),b}function C(){if(Yb.wrapper&&!r()){var a=Yb.wrapper.offsetWidth,b=Yb.wrapper.offsetHeight;a-=b*Tb.margin,b-=b*Tb.margin;var c=Tb.width,d=Tb.height,e=20;D(Tb.width,Tb.height,e),"string"==typeof c&&/%$/.test(c)&&(c=parseInt(c,10)/100*a),"string"==typeof d&&/%$/.test(d)&&(d=parseInt(d,10)/100*b),Yb.slides.style.width=c+"px",Yb.slides.style.height=d+"px",Xb=Math.min(a/c,b/d),Xb=Math.max(Xb,Tb.minScale),Xb=Math.min(Xb,Tb.maxScale),"undefined"==typeof Yb.slides.style.zoom||navigator.userAgent.match(/(iphone|ipod|ipad|android)/gi)?o(Yb.slides,"translate(-50%, -50%) scale("+Xb+") translate(50%, 50%)"):Yb.slides.style.zoom=Xb;for(var f=m(document.querySelectorAll(Pb)),g=0,h=f.length;h>g;g++){var i=f[g];"none"!==i.style.display&&(i.style.top=Tb.center?i.classList.contains("stack")?0:Math.max(-(p(i)/2)-e,-d/2)+"px":"")}U(),X()}}function D(a,b,c){m(Yb.slides.querySelectorAll("section > .stretch")).forEach(function(d){var e=q(d,b-2*c);if(/(img|video)/gi.test(d.nodeName)){var f=d.naturalWidth||d.videoWidth,g=d.naturalHeight||d.videoHeight,h=Math.min(a/f,e/g);d.style.width=f*h+"px",d.style.height=g*h+"px"}else d.style.width=a+"px",d.style.height=e+"px"})}function E(a,b){"object"==typeof a&&"function"==typeof a.setAttribute&&a.setAttribute("data-previous-indexv",b||0)}function F(a){if("object"==typeof a&&"function"==typeof a.setAttribute&&a.classList.contains("stack")){var b=a.hasAttribute("data-start-indexv")?"data-start-indexv":"data-previous-indexv";return parseInt(a.getAttribute(b)||0,10)}return 0}function G(){if(Tb.overview){gb();var a=Yb.wrapper.classList.contains("overview"),b=window.innerWidth<400?1e3:2500;Yb.wrapper.classList.add("overview"),Yb.wrapper.classList.remove("overview-deactivating"),clearTimeout(bc),clearTimeout(cc),bc=setTimeout(function(){for(var c=document.querySelectorAll(Qb),d=0,e=c.length;e>d;d++){var f=c[d],g=Tb.rtl?-105:105;if(f.setAttribute("data-index-h",d),o(f,"translateZ(-"+b+"px) translate("+(d-Jb)*g+"%, 0%)"),f.classList.contains("stack"))for(var h=f.querySelectorAll("section"),i=0,j=h.length;j>i;i++){var k=d===Jb?Kb:F(f),l=h[i];l.setAttribute("data-index-h",d),l.setAttribute("data-index-v",i),o(l,"translate(0%, "+105*(i-k)+"%)"),l.addEventListener("click",Gb,!0)}else f.addEventListener("click",Gb,!0)}T(),C(),a||u("overviewshown",{indexh:Jb,indexv:Kb,currentSlide:Mb})},10)}}function H(){Tb.overview&&(clearTimeout(bc),clearTimeout(cc),Yb.wrapper.classList.remove("overview"),Yb.wrapper.classList.add("overview-deactivating"),cc=setTimeout(function(){Yb.wrapper.classList.remove("overview-deactivating")},1),m(document.querySelectorAll(Pb)).forEach(function(a){o(a,""),a.removeEventListener("click",Gb,!0)}),Q(Jb,Kb),fb(),u("overviewhidden",{indexh:Jb,indexv:Kb,currentSlide:Mb}))}function I(a){"boolean"==typeof a?a?G():H():J()?H():G()}function J(){return Yb.wrapper.classList.contains("overview")}function K(a){return a=a?a:Mb,a&&a.parentNode&&!!a.parentNode.nodeName.match(/section/i)}function L(){var a=document.body,b=a.requestFullScreen||a.webkitRequestFullscreen||a.webkitRequestFullScreen||a.mozRequestFullScreen||a.msRequestFullScreen;b&&b.apply(a)}function M(){var a=Yb.wrapper.classList.contains("paused");gb(),Yb.wrapper.classList.add("paused"),a===!1&&u("paused")}function N(){var a=Yb.wrapper.classList.contains("paused");Yb.wrapper.classList.remove("paused"),fb(),a&&u("resumed")}function O(){P()?N():M()}function P(){return Yb.wrapper.classList.contains("paused")}function Q(a,b,c,d){Lb=Mb;var e=document.querySelectorAll(Qb);void 0===b&&(b=F(e[a])),Lb&&Lb.parentNode&&Lb.parentNode.classList.contains("stack")&&E(Lb.parentNode,Kb);var f=Wb.concat();Wb.length=0;var g=Jb||0,h=Kb||0;Jb=S(Qb,void 0===a?Jb:a),Kb=S(Rb,void 0===b?Kb:b),T(),C();a:for(var i=0,j=Wb.length;j>i;i++){for(var k=0;kb?a.classList.add("visible"):a.classList.remove("visible")})}var p=Jb!==g||Kb!==h;p?u("slidechanged",{indexh:Jb,indexv:Kb,previousSlide:Lb,currentSlide:Mb,origin:d}):Lb=null,Lb&&(Lb.classList.remove("present"),document.querySelector(Sb).classList.contains("present")&&setTimeout(function(){var a,b=m(document.querySelectorAll(Qb+".stack"));for(a in b)b[a]&&E(b[a],0)},0)),p&&(_(Lb),$(Mb)),V(),U(),W(),X(),bb()}function R(){k(),j(),C(),Vb=Tb.autoSlide,fb(),h(),V(),U(),W()}function S(a,b){var c=m(document.querySelectorAll(a)),d=c.length;if(d){Tb.loop&&(b%=d,0>b&&(b=d+b)),b=Math.max(Math.min(b,d-1),0);for(var e=0;d>e;e++){var f=c[e],g=Tb.rtl&&!K(f);if(f.classList.remove("past"),f.classList.remove("present"),f.classList.remove("future"),f.setAttribute("hidden",""),b>e)f.classList.add(g?"future":"past");else if(e>b){f.classList.add(g?"past":"future");for(var h=m(f.querySelectorAll(".fragment.visible"));h.length;)h.pop().classList.remove("visible")}f.querySelector("section")&&f.classList.add("stack")}c[b].classList.add("present"),c[b].removeAttribute("hidden");var i=c[b].getAttribute("data-state");i&&(Wb=Wb.concat(i.split(" ")));var j=c[b].getAttribute("data-autoslide");Vb=j?parseInt(j,10):Tb.autoSlide,fb()}else b=0;return b}function T(){var a,b,c=m(document.querySelectorAll(Qb)),d=c.length;if(d){var e=J()?10:Tb.viewDistance;Nb&&(e=J()?6:1);for(var f=0;d>f;f++){var g=c[f],h=m(g.querySelectorAll("section")),i=h.length;if(a=Math.abs((Jb-f)%(d-e))||0,g.style.display=a>e?"none":"block",i)for(var j=F(g),k=0;i>k;k++){var l=h[k];b=f===Jb?Math.abs(Kb-k):Math.abs(k-j),l.style.display=a+b>e?"none":"block"}}}}function U(){if(Tb.progress&&Yb.progress){var a=m(document.querySelectorAll(Qb)),b=document.querySelectorAll(Pb+":not(.stack)").length,c=0;a:for(var d=0;db?c:b>Jb?d:"present"),m(a.childNodes).forEach(function(a,b){a.className="slide-background "+(Kb>b?"past":b>Kb?"future":"present")})}),setTimeout(function(){Yb.background.classList.remove("no-transition")},1)}function X(){if(Tb.parallaxBackgroundImage){var a,b,c=document.querySelectorAll(Qb),d=document.querySelectorAll(Rb),e=Yb.background.style.backgroundSize.split(" ");1===e.length?a=b=parseInt(e[0],10):(a=parseInt(e[0],10),b=parseInt(e[1],10));var f=Yb.background.offsetWidth,g=c.length,h=-(a-f)/(g-1)*Jb,i=Yb.background.offsetHeight,j=d.length,k=j>0?-(b-i)/(j-1)*Kb:0;Yb.background.style.backgroundPosition=h+"px "+k+"px"}}function Y(){var a=document.querySelectorAll(Qb),b=document.querySelectorAll(Rb),c={left:Jb>0||Tb.loop,right:Jb0,down:Kb0,next:!!b.length}}return{prev:!1,next:!1}}function $(a){a&&(m(a.querySelectorAll("video, audio")).forEach(function(a){a.hasAttribute("data-autoplay")&&a.play()}),m(a.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(a){a.hasAttribute("data-autoplay")&&a.contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}',"*")}))}function _(a){a&&(m(a.querySelectorAll("video, audio")).forEach(function(a){a.hasAttribute("data-ignore")||a.pause()}),m(a.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(a){a.hasAttribute("data-ignore")||"function"!=typeof a.contentWindow.postMessage||a.contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}',"*")}))}function ab(){var a=window.location.hash,b=a.slice(2).split("/"),c=a.replace(/#|\//gi,"");if(isNaN(parseInt(b[0],10))&&c.length){var d=document.querySelector("#"+c);if(d){var e=Reveal.getIndices(d);Q(e.h,e.v)}else Q(Jb||0,Kb||0)}else{var f=parseInt(b[0],10)||0,g=parseInt(b[1],10)||0;(f!==Jb||g!==Kb)&&Q(f,g)}}function bb(a){if(Tb.history)if(clearTimeout(ac),"number"==typeof a)ac=setTimeout(bb,a);else{var b="/";Mb&&"string"==typeof Mb.getAttribute("id")?b="/"+Mb.getAttribute("id"):((Jb>0||Kb>0)&&(b+=Jb),Kb>0&&(b+="/"+Kb)),window.location.hash=b}}function cb(a){var b,c=Jb,d=Kb;if(a){var e=K(a),f=e?a.parentNode:a,g=m(document.querySelectorAll(Qb));c=Math.max(g.indexOf(f),0),e&&(d=Math.max(m(a.parentNode.querySelectorAll("section")).indexOf(a),0))}if(!a&&Mb){var h=Mb.querySelectorAll(".fragment").length>0;if(h){var i=Mb.querySelectorAll(".fragment.visible");b=i.length}}return{h:c,v:d,f:b}}function db(){if(Mb&&Tb.fragments){var a=B(Mb.querySelectorAll(".fragment:not(.visible)"));if(a.length){var b=a[0].getAttribute("data-fragment-index");return a=Mb.querySelectorAll('.fragment[data-fragment-index="'+b+'"]'),m(a).forEach(function(a){a.classList.add("visible")}),u("fragmentshown",{fragment:a[0],fragments:a}),V(),!0}}return!1}function eb(){if(Mb&&Tb.fragments){var a=B(Mb.querySelectorAll(".fragment.visible"));if(a.length){var b=a[a.length-1].getAttribute("data-fragment-index");return a=Mb.querySelectorAll('.fragment[data-fragment-index="'+b+'"]'),m(a).forEach(function(a){a.classList.remove("visible")}),u("fragmenthidden",{fragment:a[0],fragments:a}),V(),!0}}return!1}function fb(){clearTimeout(_b),!Vb||P()||J()||(_b=setTimeout(mb,Vb))}function gb(){clearTimeout(_b)}function hb(){Tb.rtl?(J()||db()===!1)&&Y().left&&Q(Jb+1):(J()||eb()===!1)&&Y().left&&Q(Jb-1)}function ib(){Tb.rtl?(J()||eb()===!1)&&Y().right&&Q(Jb-1):(J()||db()===!1)&&Y().right&&Q(Jb+1)}function jb(){(J()||eb()===!1)&&Y().up&&Q(Jb,Kb-1)}function kb(){(J()||db()===!1)&&Y().down&&Q(Jb,Kb+1)}function lb(){if(eb()===!1)if(Y().up)jb();else{var a=document.querySelector(Qb+".past:nth-child("+Jb+")");if(a){var b=a.querySelectorAll("section").length-1||void 0,c=Jb-1;Q(c,b)}}}function mb(){db()===!1&&(Y().down?kb():ib()),fb()}function nb(){Tb.autoSlideStoppable&&(Tb.autoSlide=0,gb())}function ob(a){document.activeElement;var b=!(!document.activeElement||!document.activeElement.type&&!document.activeElement.href&&"inherit"===document.activeElement.contentEditable);if(!(b||a.shiftKey&&32!==a.keyCode||a.altKey||a.ctrlKey||a.metaKey)){if(P()&&-1===[66,190,191].indexOf(a.keyCode))return!1;var c=!1;if("object"==typeof Tb.keyboard)for(var d in Tb.keyboard)if(parseInt(d,10)===a.keyCode){var e=Tb.keyboard[d];"function"==typeof e?e.apply(null,[a]):"string"==typeof e&&"function"==typeof Reveal[e]&&Reveal[e].call(),c=!0}if(c===!1)switch(c=!0,a.keyCode){case 80:case 33:lb();break;case 78:case 34:mb();break;case 72:case 37:hb();break;case 76:case 39:ib();break;case 75:case 38:jb();break;case 74:case 40:kb();break;case 36:Q(0);break;case 35:Q(Number.MAX_VALUE);break;case 32:J()?H():a.shiftKey?lb():mb();break;case 13:J()?H():c=!1;break;case 66:case 190:case 191:O();break;case 70:L();break;default:c=!1}c?a.preventDefault():27!==a.keyCode&&79!==a.keyCode||!Zb.transforms3d||(Yb.preview?A():I(),a.preventDefault()),fb(),nb(a)}}function pb(a){ec.startX=a.touches[0].clientX,ec.startY=a.touches[0].clientY,ec.startCount=a.touches.length,2===a.touches.length&&Tb.overview&&(ec.startSpan=n({x:a.touches[1].clientX,y:a.touches[1].clientY},{x:ec.startX,y:ec.startY})),nb(a)}function qb(a){if(ec.captured)navigator.userAgent.match(/android/gi)&&a.preventDefault();else{var b=a.touches[0].clientX,c=a.touches[0].clientY;if(2===a.touches.length&&2===ec.startCount&&Tb.overview){var d=n({x:a.touches[1].clientX,y:a.touches[1].clientY},{x:ec.startX,y:ec.startY});Math.abs(ec.startSpan-d)>ec.threshold&&(ec.captured=!0,dec.threshold&&Math.abs(e)>Math.abs(f)?(ec.captured=!0,hb()):e<-ec.threshold&&Math.abs(e)>Math.abs(f)?(ec.captured=!0,ib()):f>ec.threshold?(ec.captured=!0,jb()):f<-ec.threshold&&(ec.captured=!0,kb()),Tb.embedded?(ec.captured||K(Mb))&&a.preventDefault():a.preventDefault()}}}function rb(){ec.captured=!1}function sb(a){a.pointerType===a.MSPOINTER_TYPE_TOUCH&&(a.touches=[{clientX:a.clientX,clientY:a.clientY}],pb(a)),nb(a)}function tb(a){a.pointerType===a.MSPOINTER_TYPE_TOUCH&&(a.touches=[{clientX:a.clientX,clientY:a.clientY}],qb(a))}function ub(a){a.pointerType===a.MSPOINTER_TYPE_TOUCH&&(a.touches=[{clientX:a.clientX,clientY:a.clientY}],rb(a))}function vb(a){if(Date.now()-$b>600){$b=Date.now();var b=a.detail||-a.wheelDelta;b>0?mb():lb()}}function wb(a){a.preventDefault();var b=m(document.querySelectorAll(Qb)).length,c=Math.floor(a.clientX/Yb.wrapper.offsetWidth*b);Q(c),nb(a)}function xb(a){a.preventDefault(),hb(),nb()}function yb(a){a.preventDefault(),ib(),nb()}function zb(a){a.preventDefault(),jb(),nb()}function Ab(a){a.preventDefault(),kb(),nb()}function Bb(a){a.preventDefault(),lb(),nb()}function Cb(a){a.preventDefault(),mb(),nb()}function Db(){ab()}function Eb(){C()}function Fb(){var a=document.webkitHidden||document.msHidden||document.hidden;a===!1&&document.activeElement!==document.body&&(document.activeElement.blur(),document.body.focus())}function Gb(a){if(dc&&J()){a.preventDefault();for(var b=a.target;b&&!b.nodeName.match(/section/gi);)b=b.parentNode;if(b&&!b.classList.contains("disabled")&&(H(),b.nodeName.match(/section/gi))){var c=parseInt(b.getAttribute("data-index-h"),10),d=parseInt(b.getAttribute("data-index-v"),10);Q(c,d)}}}function Hb(a){var b=a.target.getAttribute("href");b&&(z(b),a.preventDefault())}function Ib(a,b){this.size=50,this.thickness=3,this.playing=!1,this.progress=0,this.container=a,this.progressCheck=b,this.canvas=document.createElement("canvas"),this.canvas.className="playback",this.canvas.width=this.size,this.canvas.height=this.size,this.context=this.canvas.getContext("2d"),this.container.appendChild(this.canvas),this.render()}var Jb,Kb,Lb,Mb,Nb,Ob,Pb=".reveal .slides section",Qb=".reveal .slides>section",Rb=".reveal .slides>section.present>section",Sb=".reveal .slides>section:first-child",Tb={width:960,height:700,margin:.1,minScale:.2,maxScale:1,controls:!0,progress:!0,history:!1,keyboard:!0,overview:!0,center:!0,touch:!0,loop:!1,rtl:!1,fragments:!0,embedded:!1,autoSlide:0,autoSlideStoppable:!1,mouseWheel:!1,rollingLinks:!1,hideAddressBar:!0,previewLinks:!1,focusBodyOnPageVisiblityChange:!0,theme:null,transition:"default",transitionSpeed:"default",backgroundTransition:"default",parallaxBackgroundImage:"",parallaxBackgroundSize:"",viewDistance:3,dependencies:[]},Ub=!1,Vb=0,Wb=[],Xb=1,Yb={},Zb={},$b=0,_b=0,ac=0,bc=0,cc=0,dc=!1,ec={startX:0,startY:0,startSpan:0,startCount:0,captured:!1,threshold:40};return Ib.prototype.setPlaying=function(a){this.playing=a,this.render(),this.playing&&this.update()},Ib.prototype.setProgress=function(a){this.progress=a,this.render()},Ib.prototype.update=function(){this.progress=this.progressCheck(),this.render(),this.playing&&window.requestAnimationFrame(this.update.bind(this))},Ib.prototype.render=function(){var a=this.size/2-this.thickness,b=this.size/2,c=this.size/2,d=-Math.PI/2,e=d+this.progress*2*Math.PI;this.context.save(),this.context.clearRect(0,0,this.size,this.size),this.context.beginPath(),this.context.arc(b,c,a,0,2*Math.PI,!1),this.context.fillStyle="rgba(0,0,0,0.2)",this.context.fill(),this.context.beginPath(),this.context.arc(b,c,a,0,2*Math.PI,!1),this.context.lineWidth=this.thickness,this.context.strokeStyle="#666",this.context.stroke(),this.context.beginPath(),this.context.arc(b,c,a,d,e,!1),this.context.lineWidth=this.thickness,this.context.strokeStyle="#fff",this.context.stroke(),this.context.restore()},Ib.prototype.destroy=function(){this.canvas.parentNode&&this.container.removeChild(this.canvas)},{initialize:a,configure:i,sync:R,slide:Q,left:hb,right:ib,up:jb,down:kb,prev:lb,next:mb,prevFragment:eb,nextFragment:db,navigateTo:Q,navigateLeft:hb,navigateRight:ib,navigateUp:jb,navigateDown:kb,navigatePrev:lb,navigateNext:mb,layout:C,availableRoutes:Y,availableFragments:Z,toggleOverview:I,togglePause:O,isOverview:J,isPaused:P,addEventListeners:j,removeEventListeners:k,getIndices:cb,getSlide:function(a,b){var c=document.querySelectorAll(Qb)[a],d=c&&c.querySelectorAll("section");return"undefined"!=typeof b?d?d[b]:void 0:c},getPreviousSlide:function(){return Lb},getCurrentSlide:function(){return Mb},getScale:function(){return Xb},getConfig:function(){return Tb},getQueryHash:function(){var a={};location.search.replace(/[A-Z0-9]+?=(\w*)/gi,function(b){a[b.split("=").shift()]=b.split("=").pop()});for(var b in a){var c=a[b];"null"===c?a[b]=null:"true"===c?a[b]=!0:"false"===c?a[b]=!1:isNaN(parseFloat(c))||(a[b]=parseFloat(c))}return a},isFirstSlide:function(){return null==document.querySelector(Pb+".past")?!0:!1},isLastSlide:function(){return Mb?Mb.nextElementSibling?!1:K(Mb)&&Mb.parentNode.nextElementSibling?!1:!0:!1},isReady:function(){return Ub},addEventListener:function(a,b,c){"addEventListener"in window&&(Yb.wrapper||document.querySelector(".reveal")).addEventListener(a,b,c)},removeEventListener:function(a,b,c){"addEventListener"in window&&(Yb.wrapper||document.querySelector(".reveal")).removeEventListener(a,b,c)}}}(); \ No newline at end of file -- 2.26.2