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rewrote initialization code for clarity and brevity (#105)

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Hakim El Hattab 2012-08-11 20:25:55 -04:00
parent 1ba1ca1cf3
commit 49e8e0d205
3 changed files with 168 additions and 141 deletions
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64
index.html
View file

@ -4,7 +4,7 @@
<head> <head>
<meta charset="utf-8"> <meta charset="utf-8">
<title>reveal.js - HTML5 Presentations</title> <title>reveal.js - The HTML Presentation Framework</title>
<meta name="description" content="A framework for easily creating beautiful presentations using HTML"> <meta name="description" content="A framework for easily creating beautiful presentations using HTML">
<meta name="author" content="Hakim El Hattab"> <meta name="author" content="Hakim El Hattab">
@ -21,9 +21,8 @@
<link rel="stylesheet" href="lib/css/zenburn.css"> <link rel="stylesheet" href="lib/css/zenburn.css">
<script> <script>
// If the query includes print-pdf we'll use the PDF print sheet // If the query includes 'print-pdf' we'll use the PDF print sheet
var printStyle = window.location.search.match( /print-pdf/gi ) ? 'pdf' : 'paper'; document.write( '<link rel="stylesheet" href="css/print/' + ( window.location.search.match( /print-pdf/gi ) ? 'pdf' : 'paper' ) + '.css" type="text/css" media="print">' );
document.write( '<link rel="stylesheet" href="css/print/' + printStyle + '.css" type="text/css" media="print">' );
</script> </script>
<!--[if lt IE 9]> <!--[if lt IE 9]>
@ -283,19 +282,9 @@ function linkify( selector ) {
</div> </div>
<script src="lib/js/head.min.js"></script> <script src="lib/js/head.min.js"></script>
<script src="js/reveal.min.js"></script>
<script> <script>
head.ready( function() {
// Fires when a slide with data-state=customevent is activated
Reveal.addEventListener( 'customevent', function() {
console.log( '"customevent" has fired' );
} );
// Fires each time a new slide is activated
Reveal.addEventListener( 'slidechanged', function( event ) {
// event.previousSlide, event.currentSlide, event.indexh, event.indexv
} );
// Full list of configuration options available here: // Full list of configuration options available here:
// https://github.com/hakimel/reveal.js#configuration // https://github.com/hakimel/reveal.js#configuration
@ -304,42 +293,19 @@ function linkify( selector ) {
progress: true, progress: true,
history: true, history: true,
transition: Reveal.getQueryHash().transition || 'default' // default/cube/page/concave/linear(2d) transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/linear(2d)
// Optional libraries used to extend on reveal.js
dependencies: [
{ src: 'lib/js/highlight.js', async: true, callback: function() { window.hljs.initHighlightingOnLoad(); } },
{ src: 'lib/js/classList.js', condition: function() { return !document.body.classList; } },
{ src: 'lib/js/showdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'lib/js/data-markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'socket.io/socket.io.js', async: true, condition: function() { return window.location.host === 'localhost:1947'; } },
{ src: 'plugin/speakernotes/client.js', async: true, condition: function() { return window.location.host === 'localhost:1947'; } },
]
}); });
// Load highlight.js for syntax highlighting of code samples
head.js( 'lib/js/highlight.js', function() {
hljs.initHighlightingOnLoad();
} );
} );
// Scripts that should be loaded before initializing
var scripts = [];
// If the browser doesn't support classList, load a polyfill
if( !document.body.classList ) {
head.js( 'lib/js/classList.js' );
}
// Load markdown parser if there are slides defined using markdown
if( document.querySelector( '[data-markdown]' ) ) {
scripts.push( 'lib/js/showdown.js' );
scripts.push( 'lib/js/data-markdown.js' );
}
scripts.push( 'js/reveal.min.js' );
// If we're runnning the notes server we need to include some additional JS
// TODO Is there a better way to determine if we're running the notes server?
if( window.location.host === 'localhost:1947' ) {
scripts.push( 'socket.io/socket.io.js' );
scripts.push( 'plugin/speakernotes/client.js' );
}
// Load the scripts and, when completed, initialize reveal.js
head.js.apply( null, scripts );
</script> </script>
</body> </body>

105
js/reveal.js
View file

@ -1,5 +1,5 @@
/*! /*!
* reveal.js 2.0 r17 * reveal.js 2.0 r18
* http://lab.hakim.se/reveal-js * http://lab.hakim.se/reveal-js
* MIT licensed * MIT licensed
* *
@ -40,7 +40,10 @@ var Reveal = (function(){
rollingLinks: true, rollingLinks: true,
// Transition style // Transition style
transition: 'default' // default/cube/page/concave/linear(2d) transition: 'default', // default/cube/page/concave/linear(2d),
// Script dependencies to load
dependencies: []
}, },
// The horizontal and verical index of the currently active slide // The horizontal and verical index of the currently active slide
@ -72,9 +75,6 @@ var Reveal = (function(){
'OTransform' in document.body.style || 'OTransform' in document.body.style ||
'transform' in document.body.style, 'transform' in document.body.style,
// Detect support for elem.classList
supportsClassList = !!document.body.classList;
// Throttles mouse wheel navigation // Throttles mouse wheel navigation
mouseWheelTimeout = 0, mouseWheelTimeout = 0,
@ -96,12 +96,10 @@ var Reveal = (function(){
/** /**
* Starts up the slideshow by applying configuration * Starts up the presentation if the client is capable.
* options and binding various events.
*/ */
function initialize( options ) { function initialize( options ) {
if( ( !supports2DTransforms && !supports3DTransforms ) ) {
if( ( !supports2DTransforms && !supports3DTransforms ) || !supportsClassList ) {
document.body.setAttribute( 'class', 'no-transforms' ); document.body.setAttribute( 'class', 'no-transforms' );
// If the browser doesn't support core features we won't be // If the browser doesn't support core features we won't be
@ -109,6 +107,9 @@ var Reveal = (function(){
return; return;
} }
// Copy options over to our config object
extend( config, options );
// Cache references to DOM elements // Cache references to DOM elements
dom.wrapper = document.querySelector( '.reveal' ); dom.wrapper = document.querySelector( '.reveal' );
dom.progress = document.querySelector( '.reveal .progress' ); dom.progress = document.querySelector( '.reveal .progress' );
@ -122,20 +123,8 @@ var Reveal = (function(){
dom.controlsDown = document.querySelector( '.reveal .controls .down' ); dom.controlsDown = document.querySelector( '.reveal .controls .down' );
} }
// Copy options over to our config object // Loads the dependencies and continues to #start() once done
extend( config, options ); load();
// Subscribe to input
addEventListeners();
// Updates the presentation to match the current configuration values
configure();
// Read the initial hash
readURL();
// Start auto-sliding if it's enabled
cueAutoSlide();
// Set up hiding of the browser address bar // Set up hiding of the browser address bar
if( navigator.userAgent.match( /(iphone|ipod|android)/i ) ) { if( navigator.userAgent.match( /(iphone|ipod|android)/i ) ) {
@ -150,6 +139,76 @@ var Reveal = (function(){
} }
/**
* Loads the dependencies of reveal.js. Dependencies are
* defined via the configuration option 'dependencies'
* and will be loaded prior to starting/binding reveal.js.
* Some dependencies may have an 'async' flag, if so they
* will load after reveal.js has been started up.
*/
function load() {
var scripts = [],
scriptsAsync = [];
for( var i = 0, len = config.dependencies.length; i < len; i++ ) {
var s = config.dependencies[i];
// Load if there's no condition or the condition is truthy
if( !s.condition || s.condition() ) {
if( s.async ) {
scriptsAsync.push( s.src );
}
else {
scripts.push( s.src );
}
// Extension may contain callback functions
if( typeof s.callback === 'function' ) {
head.ready( s.src.match( /([\w\d_-]*)\.?[^\\\/]*$/i )[0], s.callback );
}
}
}
// Called once synchronous scritps finish loading
function proceed() {
// Load asynchronous scripts
head.js.apply( null, scriptsAsync );
start();
}
if( scripts.length ) {
head.ready( proceed );
// Load synchronous scripts
head.js.apply( null, scripts );
}
else {
proceed();
}
}
/**
* Starts up reveal.js by binding input events and navigating
* to the current URL deeplink if there is one.
*/
function start() {
// Subscribe to input
addEventListeners();
// Updates the presentation to match the current configuration values
configure();
// Read the initial hash
readURL();
// Start auto-sliding if it's enabled
cueAutoSlide();
}
/**
* Applies the configuration settings from the config object.
*/
function configure() { function configure() {
if( supports3DTransforms === false ) { if( supports3DTransforms === false ) {
config.transition = 'linear'; config.transition = 'linear';

122
js/reveal.min.js vendored
View file

@ -1,66 +1,68 @@
/*! /*!
* reveal.js 2.0 r17 * reveal.js 2.0 r18
* http://lab.hakim.se/reveal-js * http://lab.hakim.se/reveal-js
* MIT licensed * MIT licensed
* *
* Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
*/ */
var Reveal=(function(){var j=".reveal .slides>section",a=".reveal .slides>section.present>section",e=!!("ontouchstart" in window),K={controls:true,progress:true,history:false,keyboard:true,loop:false,autoSlide:0,mouseWheel:true,rollingLinks:true,transition:"default"},k=0,c=0,v,C,W=[],d={},M="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,l="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,y=!!document.body.classList; var Reveal=(function(){var k=".reveal .slides>section",b=".reveal .slides>section.present>section",e=!!("ontouchstart" in window),N={controls:true,progress:true,history:false,keyboard:true,loop:false,autoSlide:0,mouseWheel:true,rollingLinks:true,transition:"default",dependencies:[]},l=0,c=0,w,E,ac=[],d={},P="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,m="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,x=0,j=0,B=0,W={startX:0,startY:0,startSpan:0,startCount:0,handled:false,threshold:40};
mouseWheelTimeout=0,autoSlideTimeout=0,writeURLTimeout=0,touch={startX:0,startY:0,startSpan:0,startCount:0,handled:false,threshold:40};function h(Y){if((!l&&!M)||!y){document.body.setAttribute("class","no-transforms"); function h(ad){if((!m&&!P)){document.body.setAttribute("class","no-transforms");return;}r(N,ad);d.wrapper=document.querySelector(".reveal");d.progress=document.querySelector(".reveal .progress");
return;}d.wrapper=document.querySelector(".reveal");d.progress=document.querySelector(".reveal .progress");d.progressbar=document.querySelector(".reveal .progress span"); d.progressbar=document.querySelector(".reveal .progress span");if(N.controls){d.controls=document.querySelector(".reveal .controls");d.controlsLeft=document.querySelector(".reveal .controls .left");
if(K.controls){d.controls=document.querySelector(".reveal .controls");d.controlsLeft=document.querySelector(".reveal .controls .left");d.controlsRight=document.querySelector(".reveal .controls .right"); d.controlsRight=document.querySelector(".reveal .controls .right");d.controlsUp=document.querySelector(".reveal .controls .up");d.controlsDown=document.querySelector(".reveal .controls .down");
d.controlsUp=document.querySelector(".reveal .controls .up");d.controlsDown=document.querySelector(".reveal .controls .down");}q(K,Y);A();F();E();H();if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow="scroll"; }R();if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow="scroll";document.body.style.height="120%";window.addEventListener("load",X,false);
document.body.style.height="120%";window.addEventListener("load",S,false);window.addEventListener("orientationchange",S,false);}}function F(){if(M===false){K.transition="linear"; window.addEventListener("orientationchange",X,false);}}function R(){var ae=[],ai=[];for(var af=0,ad=N.dependencies.length;af<ad;af++){var ag=N.dependencies[af];
}if(K.controls&&d.controls){d.controls.style.display="block";}if(K.progress&&d.progress){d.progress.style.display="block";}if(K.transition!=="default"){d.wrapper.classList.add(K.transition); if(!ag.condition||ag.condition()){if(ag.async){ai.push(ag.src);}else{ae.push(ag.src);}if(typeof ag.callback==="function"){head.ready(ag.src.match(/([\w\d_-]*)\.?[^\\\/]*$/i)[0],ag.callback);
}if(K.mouseWheel){document.addEventListener("DOMMouseScroll",m,false);document.addEventListener("mousewheel",m,false);}if(K.rollingLinks){G();}}function A(){document.addEventListener("touchstart",w,false); }}}function ah(){head.js.apply(null,ai);F();}if(ae.length){head.ready(ah);head.js.apply(null,ae);}else{ah();}}function F(){C();I();H();K();}function I(){if(P===false){N.transition="linear";
document.addEventListener("touchmove",U,false);document.addEventListener("touchend",O,false);window.addEventListener("hashchange",t,false);if(K.keyboard){document.addEventListener("keydown",V,false); }if(N.controls&&d.controls){d.controls.style.display="block";}if(N.progress&&d.progress){d.progress.style.display="block";}if(N.transition!=="default"){d.wrapper.classList.add(N.transition);
}if(K.controls&&d.controls){d.controlsLeft.addEventListener("click",n(x),false);d.controlsRight.addEventListener("click",n(i),false);d.controlsUp.addEventListener("click",n(r),false); }if(N.mouseWheel){document.addEventListener("DOMMouseScroll",n,false);document.addEventListener("mousewheel",n,false);}if(N.rollingLinks){J();}}function C(){document.addEventListener("touchstart",y,false);
d.controlsDown.addEventListener("click",n(B),false);}}function N(){document.removeEventListener("keydown",V,false);document.removeEventListener("touchstart",w,false); document.addEventListener("touchmove",Z,false);document.addEventListener("touchend",S,false);window.addEventListener("hashchange",u,false);if(N.keyboard){document.addEventListener("keydown",aa,false);
document.removeEventListener("touchmove",U,false);document.removeEventListener("touchend",O,false);window.removeEventListener("hashchange",t,false);if(K.controls&&d.controls){d.controlsLeft.removeEventListener("click",n(x),false); }if(N.controls&&d.controls){d.controlsLeft.addEventListener("click",o(z),false);d.controlsRight.addEventListener("click",o(i),false);d.controlsUp.addEventListener("click",o(s),false);
d.controlsRight.removeEventListener("click",n(i),false);d.controlsUp.removeEventListener("click",n(r),false);d.controlsDown.removeEventListener("click",n(B),false); d.controlsDown.addEventListener("click",o(D),false);}}function Q(){document.removeEventListener("keydown",aa,false);document.removeEventListener("touchstart",y,false);
}}function q(Z,Y){for(var aa in Y){Z[aa]=Y[aa];}}function L(aa,Y){var ab=aa.x-Y.x,Z=aa.y-Y.y;return Math.sqrt(ab*ab+Z*Z);}function n(Y){return function(Z){Z.preventDefault(); document.removeEventListener("touchmove",Z,false);document.removeEventListener("touchend",S,false);window.removeEventListener("hashchange",u,false);if(N.controls&&d.controls){d.controlsLeft.removeEventListener("click",o(z),false);
Y.call();};}function S(){setTimeout(function(){window.scrollTo(0,1);},0);}function V(Z){if(Z.target.contentEditable!="inherit"||Z.shiftKey||Z.altKey||Z.ctrlKey||Z.metaKey){return; d.controlsRight.removeEventListener("click",o(i),false);d.controlsUp.removeEventListener("click",o(s),false);d.controlsDown.removeEventListener("click",o(D),false);
}var Y=false;switch(Z.keyCode){case 80:case 33:Q();Y=true;break;case 78:case 34:u();Y=true;break;case 72:case 37:x();Y=true;break;case 76:case 39:i();Y=true; }}function r(ae,ad){for(var af in ad){ae[af]=ad[af];}}function O(af,ad){var ag=af.x-ad.x,ae=af.y-ad.y;return Math.sqrt(ag*ag+ae*ae);}function o(ad){return function(ae){ae.preventDefault();
break;case 75:case 38:r();Y=true;break;case 74:case 40:B();Y=true;break;case 36:I(0);Y=true;break;case 35:I(Number.MAX_VALUE);Y=true;break;case 32:R()?T():u(); ad.call();};}function X(){setTimeout(function(){window.scrollTo(0,1);},0);}function aa(ae){if(ae.target.contentEditable!="inherit"||ae.shiftKey||ae.altKey||ae.ctrlKey||ae.metaKey){return;
Y=true;break;case 13:if(R()){T();Y=true;}break;}if(Y){Z.preventDefault();}else{if(Z.keyCode===27&&M){P();Z.preventDefault();}}H();}function w(Y){touch.startX=Y.touches[0].clientX; }var ad=false;switch(ae.keyCode){case 80:case 33:U();ad=true;break;case 78:case 34:v();ad=true;break;case 72:case 37:z();ad=true;break;case 76:case 39:i();
touch.startY=Y.touches[0].clientY;touch.startCount=Y.touches.length;if(Y.touches.length===2){touch.startSpan=L({x:Y.touches[1].clientX,y:Y.touches[1].clientY},{x:touch.startX,y:touch.startY}); ad=true;break;case 75:case 38:s();ad=true;break;case 74:case 40:D();ad=true;break;case 36:L(0);ad=true;break;case 35:L(Number.MAX_VALUE);ad=true;break;
}}function U(ad){if(!touch.handled){var ab=ad.touches[0].clientX;var aa=ad.touches[0].clientY;if(ad.touches.length===2&&touch.startCount===2){var ac=L({x:ad.touches[1].clientX,y:ad.touches[1].clientY},{x:touch.startX,y:touch.startY}); case 32:V()?Y():v();ad=true;break;case 13:if(V()){Y();ad=true;}break;}if(ad){ae.preventDefault();}else{if(ae.keyCode===27&&P){T();ae.preventDefault();}}K();
if(Math.abs(touch.startSpan-ac)>touch.threshold){touch.handled=true;if(ac<touch.startSpan){D();}else{T();}}}else{if(ad.touches.length===1){var Z=ab-touch.startX,Y=aa-touch.startY; }function y(ad){W.startX=ad.touches[0].clientX;W.startY=ad.touches[0].clientY;W.startCount=ad.touches.length;if(ad.touches.length===2){W.startSpan=O({x:ad.touches[1].clientX,y:ad.touches[1].clientY},{x:W.startX,y:W.startY});
if(Z>touch.threshold&&Math.abs(Z)>Math.abs(Y)){touch.handled=true;x();}else{if(Z<-touch.threshold&&Math.abs(Z)>Math.abs(Y)){touch.handled=true;i();}else{if(Y>touch.threshold){touch.handled=true; }}function Z(ai){if(!W.handled){var ag=ai.touches[0].clientX;var af=ai.touches[0].clientY;if(ai.touches.length===2&&W.startCount===2){var ah=O({x:ai.touches[1].clientX,y:ai.touches[1].clientY},{x:W.startX,y:W.startY});
r();}else{if(Y<-touch.threshold){touch.handled=true;B();}}}}}}ad.preventDefault();}}function O(Y){touch.handled=false;}function m(Y){clearTimeout(mouseWheelTimeout); if(Math.abs(W.startSpan-ah)>W.threshold){W.handled=true;if(ah<W.startSpan){G();}else{Y();}}}else{if(ai.touches.length===1){var ae=ag-W.startX,ad=af-W.startY;
mouseWheelTimeout=setTimeout(function(){var Z=Y.detail||-Y.wheelDelta;if(Z>0){u();}else{Q();}},100);}function t(Y){E();}function G(){if(M&&!("msPerspective" in document.body.style)){var Z=document.querySelectorAll(".reveal .slides section a:not(.image)"); if(ae>W.threshold&&Math.abs(ae)>Math.abs(ad)){W.handled=true;z();}else{if(ae<-W.threshold&&Math.abs(ae)>Math.abs(ad)){W.handled=true;i();}else{if(ad>W.threshold){W.handled=true;
for(var aa=0,Y=Z.length;aa<Y;aa++){var ab=Z[aa];if(ab.textContent&&!ab.querySelector("img")&&(!ab.className||!ab.classList.contains(ab,"roll"))){ab.classList.add("roll"); s();}else{if(ad<-W.threshold){W.handled=true;D();}}}}}}ai.preventDefault();}}function S(ad){W.handled=false;}function n(ad){clearTimeout(x);x=setTimeout(function(){var ae=ad.detail||-ad.wheelDelta;
ab.innerHTML='<span data-title="'+ab.text+'">'+ab.innerHTML+"</span>";}}}}function D(){d.wrapper.classList.add("overview");var Y=Array.prototype.slice.call(document.querySelectorAll(j)); if(ae>0){v();}else{U();}},100);}function u(ad){H();}function J(){if(P&&!("msPerspective" in document.body.style)){var ae=document.querySelectorAll(".reveal .slides section a:not(.image)");
for(var ad=0,ab=Y.length;ad<ab;ad++){var aa=Y[ad],ah="translateZ(-2500px) translate("+((ad-k)*105)+"%, 0%)";aa.setAttribute("data-index-h",ad);aa.style.display="block"; for(var af=0,ad=ae.length;af<ad;af++){var ag=ae[af];if(ag.textContent&&!ag.querySelector("img")&&(!ag.className||!ag.classList.contains(ag,"roll"))){ag.classList.add("roll");
aa.style.WebkitTransform=ah;aa.style.MozTransform=ah;aa.style.msTransform=ah;aa.style.OTransform=ah;aa.style.transform=ah;if(!aa.classList.contains("stack")){aa.addEventListener("click",z,true); ag.innerHTML='<span data-title="'+ag.text+'">'+ag.innerHTML+"</span>";}}}}function G(){d.wrapper.classList.add("overview");var ad=Array.prototype.slice.call(document.querySelectorAll(k));
}var ag=Array.prototype.slice.call(aa.querySelectorAll("section"));for(var ac=0,Z=ag.length;ac<Z;ac++){var af=ag[ac],ae="translate(0%, "+((ac-c)*105)+"%)"; for(var ai=0,ag=ad.length;ai<ag;ai++){var af=ad[ai],am="translateZ(-2500px) translate("+((ai-l)*105)+"%, 0%)";af.setAttribute("data-index-h",ai);af.style.display="block";
af.setAttribute("data-index-h",ad);af.setAttribute("data-index-v",ac);af.style.display="block";af.style.WebkitTransform=ae;af.style.MozTransform=ae;af.style.msTransform=ae; af.style.WebkitTransform=am;af.style.MozTransform=am;af.style.msTransform=am;af.style.OTransform=am;af.style.transform=am;if(!af.classList.contains("stack")){af.addEventListener("click",A,true);
af.style.OTransform=ae;af.style.transform=ae;af.addEventListener("click",z,true);}}}function T(){d.wrapper.classList.remove("overview");var ab=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section")); }var al=Array.prototype.slice.call(af.querySelectorAll("section"));for(var ah=0,ae=al.length;ah<ae;ah++){var ak=al[ah],aj="translate(0%, "+((ah-c)*105)+"%)";
for(var aa=0,Y=ab.length;aa<Y;aa++){var Z=ab[aa];Z.style.WebkitTransform="";Z.style.MozTransform="";Z.style.msTransform="";Z.style.OTransform="";Z.style.transform=""; ak.setAttribute("data-index-h",ai);ak.setAttribute("data-index-v",ah);ak.style.display="block";ak.style.WebkitTransform=aj;ak.style.MozTransform=aj;ak.style.msTransform=aj;
Z.removeEventListener("click",z);}b();}function R(){return d.wrapper.classList.contains("overview");}function z(Y){if(R()){Y.preventDefault();T();k=this.getAttribute("data-index-h"); ak.style.OTransform=aj;ak.style.transform=aj;ak.addEventListener("click",A,true);}}}function Y(){d.wrapper.classList.remove("overview");var ag=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section"));
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