(function(root,factory){if(typeof define==='function'&&define.amd){define(function(){root.Reveal=factory();return root.Reveal;});}else if(typeof exports==='object'){module.exports=factory();}else{root.Reveal=factory();}}(this,function(){'use strict';var Reveal;var SLIDES_SELECTOR='.slides section',HORIZONTAL_SLIDES_SELECTOR='.slides>section',VERTICAL_SLIDES_SELECTOR='.slides>section.present>section',HOME_SLIDE_SELECTOR='.slides>section:first-of-type',config={width:960,height:700,margin:0.1,marginTop:'',marginLeft:'',minScale:0.2,maxScale:1.5,controls:true,progress:true,slideNumber:false,history:false,keyboard:true,keyboardCondition:null,overview:true,center:true,touch:true,loop:false,rtl:false,fragments:true,embedded:false,help:true,pause:true,autoSlide:0,autoSlideStoppable:true,mouseWheel:false,rollingLinks:false,hideAddressBar:true,previewLinks:false,postMessage:true,postMessageEvents:false,focusBodyOnPageVisibilityChange:true,transition:'slide',transitionSpeed:'default',backgroundTransition:'fade',parallaxBackgroundImage:'',parallaxBackgroundSize:'',parallaxBackgroundHorizontal:null,parallaxBackgroundVertical:null,viewDistance:3,dependencies:[]},loaded=false,overview=false,indexh,indexv,previousSlide,currentSlide,previousBackground,state=[],scale=1,slidesTransform={layout:'',overview:''},dom={},features={},isMobileDevice,lastMouseWheelStep=0,writeURLTimeout=0,eventsAreBound=false,autoSlide=0,autoSlidePlayer,autoSlideTimeout=0,autoSlideStartTime=-1,autoSlidePaused=false,touch={startX:0,startY:0,startSpan:0,startCount:0,captured:false,threshold:40},keyboardShortcuts={'N , SPACE':'Next slide','P':'Previous slide','← , H':'Navigate left','→ , L':'Navigate right','↑ , K':'Navigate up','↓ , J':'Navigate down','Home':'First slide','End':'Last slide','B , .':'Pause','F':'Fullscreen','ESC, O':'Slide overview'};function initialize(options){checkCapabilities();if(!features.transforms2d&&!features.transforms3d){document.body.setAttribute('class','no-transforms');var images=document.getElementsByTagName('img');for(var i=0,len=images.length;i');dom.progressbar=dom.progress.querySelector('span');createSingletonNode(dom.wrapper,'aside','controls','
'+'
'+'
'+'
');dom.slideNumber=createSingletonNode(dom.wrapper,'div','slide-number','');createSingletonNode(dom.wrapper,'div','pause-overlay',null);dom.controls=document.querySelector('.reveal .controls');dom.theme=document.querySelector('#theme');dom.wrapper.setAttribute('role','application');dom.controlsLeft=toArray(document.querySelectorAll('.navigate-left'));dom.controlsRight=toArray(document.querySelectorAll('.navigate-right'));dom.controlsUp=toArray(document.querySelectorAll('.navigate-up'));dom.controlsDown=toArray(document.querySelectorAll('.navigate-down'));dom.controlsPrev=toArray(document.querySelectorAll('.navigate-prev'));dom.controlsNext=toArray(document.querySelectorAll('.navigate-next'));dom.statusDiv=createStatusDiv();} function createStatusDiv(){var statusDiv=document.getElementById('aria-status-div');if(!statusDiv){statusDiv=document.createElement('div');statusDiv.style.position='absolute';statusDiv.style.height='1px';statusDiv.style.width='1px';statusDiv.style.overflow='hidden';statusDiv.style.clip='rect( 1px, 1px, 1px, 1px )';statusDiv.setAttribute('id','aria-status-div');statusDiv.setAttribute('aria-live','polite');statusDiv.setAttribute('aria-atomic','true');dom.wrapper.appendChild(statusDiv);} return statusDiv;} function setupPDF(){var slideSize=getComputedSlideSize(window.innerWidth,window.innerHeight);var pageWidth=Math.floor(slideSize.width*(1+config.margin)),pageHeight=Math.floor(slideSize.height*(1+config.margin));var slideWidth=slideSize.width,slideHeight=slideSize.height;injectStyleSheet('@page{size:'+pageWidth+'px '+pageHeight+'px; margin: 0;}');injectStyleSheet('.reveal section>img, .reveal section>video, .reveal section>iframe{max-width: '+slideWidth+'px; max-height:'+slideHeight+'px}');document.body.classList.add('print-pdf');document.body.style.width=pageWidth+'px';document.body.style.height=pageHeight+'px';toArray(dom.wrapper.querySelectorAll(SLIDES_SELECTOR)).forEach(function(slide){if(slide.classList.contains('stack')===false){var left=(pageWidth-slideWidth)/2,top=(pageHeight-slideHeight)/2;var contentHeight=getAbsoluteHeight(slide);var numberOfPages=Math.max(Math.ceil(contentHeight/pageHeight),1);if(numberOfPages===1&&config.center||slide.classList.contains('center')){top=Math.max((pageHeight-contentHeight)/2,0);} slide.style.left=left+'px';slide.style.top=top+'px';slide.style.width=slideWidth+'px';var background=slide.querySelector('.slide-background');if(background){background.style.width=pageWidth+'px';background.style.height=(pageHeight*numberOfPages)+'px';background.style.top=-top+'px';background.style.left=-left+'px';}}});toArray(dom.wrapper.querySelectorAll(SLIDES_SELECTOR+' .fragment')).forEach(function(fragment){fragment.classList.add('visible');});} function setupIframeScrollPrevention(){if(dom.slides.querySelector('iframe')){setInterval(function(){if(dom.wrapper.scrollTop!==0||dom.wrapper.scrollLeft!==0){dom.wrapper.scrollTop=0;dom.wrapper.scrollLeft=0;}},500);}} function createSingletonNode(container,tagname,classname,innerHTML){var nodes=container.querySelectorAll('.'+classname);for(var i=0;i1&&config.autoSlide&&config.autoSlideStoppable&&features.canvas&&features.requestAnimationFrame){autoSlidePlayer=new Playback(dom.wrapper,function(){return Math.min(Math.max((Date.now()-autoSlideStartTime)/autoSlide,0),1);});autoSlidePlayer.on('click',onAutoSlidePlayerClick);autoSlidePaused=false;} if(config.fragments===false){toArray(dom.slides.querySelectorAll('.fragment')).forEach(function(element){element.classList.add('visible');element.classList.remove('current-fragment');});} sync();} function addEventListeners(){eventsAreBound=true;window.addEventListener('hashchange',onWindowHashChange,false);window.addEventListener('resize',onWindowResize,false);if(config.touch){dom.wrapper.addEventListener('touchstart',onTouchStart,false);dom.wrapper.addEventListener('touchmove',onTouchMove,false);dom.wrapper.addEventListener('touchend',onTouchEnd,false);if(window.navigator.pointerEnabled){dom.wrapper.addEventListener('pointerdown',onPointerDown,false);dom.wrapper.addEventListener('pointermove',onPointerMove,false);dom.wrapper.addEventListener('pointerup',onPointerUp,false);} else if(window.navigator.msPointerEnabled){dom.wrapper.addEventListener('MSPointerDown',onPointerDown,false);dom.wrapper.addEventListener('MSPointerMove',onPointerMove,false);dom.wrapper.addEventListener('MSPointerUp',onPointerUp,false);}} if(config.keyboard){document.addEventListener('keydown',onDocumentKeyDown,false);document.addEventListener('keypress',onDocumentKeyPress,false);} if(config.progress&&dom.progress){dom.progress.addEventListener('click',onProgressClicked,false);} if(config.focusBodyOnPageVisibilityChange){var visibilityChange;if('hidden'in document){visibilityChange='visibilitychange';} else if('msHidden'in document){visibilityChange='msvisibilitychange';} else if('webkitHidden'in document){visibilityChange='webkitvisibilitychange';} if(visibilityChange){document.addEventListener(visibilityChange,onPageVisibilityChange,false);}} var pointerEvents=['touchstart','click'];if(navigator.userAgent.match(/android/gi)){pointerEvents=['touchstart'];} pointerEvents.forEach(function(eventName){dom.controlsLeft.forEach(function(el){el.addEventListener(eventName,onNavigateLeftClicked,false);});dom.controlsRight.forEach(function(el){el.addEventListener(eventName,onNavigateRightClicked,false);});dom.controlsUp.forEach(function(el){el.addEventListener(eventName,onNavigateUpClicked,false);});dom.controlsDown.forEach(function(el){el.addEventListener(eventName,onNavigateDownClicked,false);});dom.controlsPrev.forEach(function(el){el.addEventListener(eventName,onNavigatePrevClicked,false);});dom.controlsNext.forEach(function(el){el.addEventListener(eventName,onNavigateNextClicked,false);});});} function removeEventListeners(){eventsAreBound=false;document.removeEventListener('keydown',onDocumentKeyDown,false);document.removeEventListener('keypress',onDocumentKeyPress,false);window.removeEventListener('hashchange',onWindowHashChange,false);window.removeEventListener('resize',onWindowResize,false);dom.wrapper.removeEventListener('touchstart',onTouchStart,false);dom.wrapper.removeEventListener('touchmove',onTouchMove,false);dom.wrapper.removeEventListener('touchend',onTouchEnd,false);if(window.navigator.pointerEnabled){dom.wrapper.removeEventListener('pointerdown',onPointerDown,false);dom.wrapper.removeEventListener('pointermove',onPointerMove,false);dom.wrapper.removeEventListener('pointerup',onPointerUp,false);} else if(window.navigator.msPointerEnabled){dom.wrapper.removeEventListener('MSPointerDown',onPointerDown,false);dom.wrapper.removeEventListener('MSPointerMove',onPointerMove,false);dom.wrapper.removeEventListener('MSPointerUp',onPointerUp,false);} if(config.progress&&dom.progress){dom.progress.removeEventListener('click',onProgressClicked,false);} ['touchstart','click'].forEach(function(eventName){dom.controlsLeft.forEach(function(el){el.removeEventListener(eventName,onNavigateLeftClicked,false);});dom.controlsRight.forEach(function(el){el.removeEventListener(eventName,onNavigateRightClicked,false);});dom.controlsUp.forEach(function(el){el.removeEventListener(eventName,onNavigateUpClicked,false);});dom.controlsDown.forEach(function(el){el.removeEventListener(eventName,onNavigateDownClicked,false);});dom.controlsPrev.forEach(function(el){el.removeEventListener(eventName,onNavigatePrevClicked,false);});dom.controlsNext.forEach(function(el){el.removeEventListener(eventName,onNavigateNextClicked,false);});});} function extend(a,b){for(var i in b){a[i]=b[i];}} function toArray(o){return Array.prototype.slice.call(o);} function deserialize(value){if(typeof value==='string'){if(value==='null')return null;else if(value==='true')return true;else if(value==='false')return false;else if(value.match(/^\d+$/))return parseFloat(value);} return value;} function distanceBetween(a,b){var dx=a.x-b.x,dy=a.y-b.y;return Math.sqrt(dx*dx+dy*dy);} function transformElement(element,transform){element.style.WebkitTransform=transform;element.style.MozTransform=transform;element.style.msTransform=transform;element.style.transform=transform;} function transformSlides(transforms){if(typeof transforms.layout==='string')slidesTransform.layout=transforms.layout;if(typeof transforms.overview==='string')slidesTransform.overview=transforms.overview;if(slidesTransform.layout){transformElement(dom.slides,slidesTransform.layout+' '+slidesTransform.overview);} else{transformElement(dom.slides,slidesTransform.overview);}} function injectStyleSheet(value){var tag=document.createElement('style');tag.type='text/css';if(tag.styleSheet){tag.styleSheet.cssText=value;} else{tag.appendChild(document.createTextNode(value));} document.getElementsByTagName('head')[0].appendChild(tag);} function colorToRgb(color){var hex3=color.match(/^#([0-9a-f]{3})$/i);if(hex3&&hex3[1]){hex3=hex3[1];return{r:parseInt(hex3.charAt(0),16)*0x11,g:parseInt(hex3.charAt(1),16)*0x11,b:parseInt(hex3.charAt(2),16)*0x11};} var hex6=color.match(/^#([0-9a-f]{6})$/i);if(hex6&&hex6[1]){hex6=hex6[1];return{r:parseInt(hex6.substr(0,2),16),g:parseInt(hex6.substr(2,2),16),b:parseInt(hex6.substr(4,2),16)};} var rgb=color.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i);if(rgb){return{r:parseInt(rgb[1],10),g:parseInt(rgb[2],10),b:parseInt(rgb[3],10)};} var rgba=color.match(/^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i);if(rgba){return{r:parseInt(rgba[1],10),g:parseInt(rgba[2],10),b:parseInt(rgba[3],10),a:parseFloat(rgba[4])};} return null;} function colorBrightness(color){if(typeof color==='string')color=colorToRgb(color);if(color){return(color.r*299+color.g*587+color.b*114)/1000;} return null;} function getAbsoluteHeight(element){var height=0;if(element){var absoluteChildren=0;toArray(element.childNodes).forEach(function(child){if(typeof child.offsetTop==='number'&&child.style){if(window.getComputedStyle(child).position==='absolute'){absoluteChildren+=1;} height=Math.max(height,child.offsetTop+child.offsetHeight);}});if(absoluteChildren===0){height=element.offsetHeight;}} return height;} function getRemainingHeight(element,height){height=height||0;if(element){var newHeight,oldHeight=element.style.height;element.style.height='0px';newHeight=height-element.parentNode.offsetHeight;element.style.height=oldHeight+'px';return newHeight;} return height;} function isPrintingPDF(){return(/print-pdf/gi).test(window.location.search);} function hideAddressBar(){if(config.hideAddressBar&&isMobileDevice){window.addEventListener('load',removeAddressBar,false);window.addEventListener('orientationchange',removeAddressBar,false);}} function removeAddressBar(){setTimeout(function(){window.scrollTo(0,1);},10);} function dispatchEvent(type,args){var event=document.createEvent('HTMLEvents',1,2);event.initEvent(type,true,true);extend(event,args);dom.wrapper.dispatchEvent(event);if(config.postMessageEvents&&window.parent!==window.self){window.parent.postMessage(JSON.stringify({namespace:'reveal',eventName:type,state:getState()}),'*');}} function enableRollingLinks(){if(features.transforms3d&&!('msPerspective'in document.body.style)){var anchors=dom.wrapper.querySelectorAll(SLIDES_SELECTOR+' a');for(var i=0,len=anchors.length;i','','','','','
','','
'].join('');dom.overlay.querySelector('iframe').addEventListener('load',function(event){dom.overlay.classList.add('loaded');},false);dom.overlay.querySelector('.close').addEventListener('click',function(event){closeOverlay();event.preventDefault();},false);dom.overlay.querySelector('.external').addEventListener('click',function(event){closeOverlay();},false);setTimeout(function(){dom.overlay.classList.add('visible');},1);} function showHelp(){if(config.help){closeOverlay();dom.overlay=document.createElement('div');dom.overlay.classList.add('overlay');dom.overlay.classList.add('overlay-help');dom.wrapper.appendChild(dom.overlay);var html='

Keyboard Shortcuts


';html+='';for(var key in keyboardShortcuts){html+='';} html+='
KEYACTION
'+key+''+keyboardShortcuts[key]+'
';dom.overlay.innerHTML=['
','','
','
','
'+html+'
','
'].join('');dom.overlay.querySelector('.close').addEventListener('click',function(event){closeOverlay();event.preventDefault();},false);setTimeout(function(){dom.overlay.classList.add('visible');},1);}} function closeOverlay(){if(dom.overlay){dom.overlay.parentNode.removeChild(dom.overlay);dom.overlay=null;}} function layout(){if(dom.wrapper&&!isPrintingPDF()){var size=getComputedSlideSize();var slidePadding=20;layoutSlideContents(config.width,config.height,slidePadding);dom.slides.style.width=size.width+'px';dom.slides.style.height=size.height+'px';scale=Math.min(size.presentationWidth/size.width,size.presentationHeight/size.height);scale=Math.max(scale,config.minScale);scale=Math.min(scale,config.maxScale);if(scale===1){dom.slides.style.zoom='';dom.slides.style.left='';dom.slides.style.top='';dom.slides.style.bottom='';dom.slides.style.right='';transformSlides({layout:''});} else{if(!isMobileDevice&&/chrome/i.test(navigator.userAgent)&&typeof dom.slides.style.zoom!=='undefined'){dom.slides.style.zoom=scale;dom.slides.style.marginTop=config.marginTop;dom.slides.style.marginLeft=config.marginLeft;transformSlides({layout:''});} else{dom.slides.style.marginTop=config.marginTop;dom.slides.style.marginLeft=config.marginLeft;dom.slides.style.marginBottom='auto';dom.slides.style.marginRight='auto';transformSlides({layout:'translate(-50%, -50%) scale('+scale+') translate(50%, 50%)'});}} var slides=toArray(dom.wrapper.querySelectorAll(SLIDES_SELECTOR));for(var i=0,len=slides.length;i .stretch')).forEach(function(element){var remainingHeight=getRemainingHeight(element,height);if(/(img|video)/gi.test(element.nodeName)){var nw=element.naturalWidth||element.videoWidth,nh=element.naturalHeight||element.videoHeight;var es=Math.min(width/nw,remainingHeight/nh);element.style.width=(nw*es)+'px';element.style.height=(nh*es)+'px';} else{element.style.width=width+'px';element.style.height=remainingHeight+'px';}});} function getComputedSlideSize(presentationWidth,presentationHeight){var size={width:config.width,height:config.height,presentationWidth:presentationWidth||dom.wrapper.offsetWidth,presentationHeight:presentationHeight||dom.wrapper.offsetHeight};size.presentationWidth-=(size.presentationHeight*config.margin);size.presentationHeight-=(size.presentationHeight*config.margin);if(typeof size.width==='string'&&/%$/.test(size.width)){size.width=parseInt(size.width,10)/100*size.presentationWidth;} if(typeof size.height==='string'&&/%$/.test(size.height)){size.height=parseInt(size.height,10)/100*size.presentationHeight;} return size;} function setPreviousVerticalIndex(stack,v){if(typeof stack==='object'&&typeof stack.setAttribute==='function'){stack.setAttribute('data-previous-indexv',v||0);}} function getPreviousVerticalIndex(stack){if(typeof stack==='object'&&typeof stack.setAttribute==='function'&&stack.classList.contains('stack')){var attributeName=stack.hasAttribute('data-start-indexv')?'data-start-indexv':'data-previous-indexv';return parseInt(stack.getAttribute(attributeName)||0,10);} return 0;} function activateOverview(){if(config.overview&&!isOverview()){overview=true;dom.wrapper.classList.add('overview');dom.wrapper.classList.remove('overview-deactivating');if(features.overviewTransitions){setTimeout(function(){dom.wrapper.classList.add('overview-animated');},1);} cancelAutoSlide();dom.slides.appendChild(dom.background);toArray(dom.wrapper.querySelectorAll(SLIDES_SELECTOR)).forEach(function(slide){if(!slide.classList.contains('stack')){slide.addEventListener('click',onOverviewSlideClicked,true);}});updateSlidesVisibility();layoutOverview();updateOverview();layout();dispatchEvent('overviewshown',{'indexh':indexh,'indexv':indexv,'currentSlide':currentSlide});}} function layoutOverview(){var margin=70;var slideWidth=config.width+margin,slideHeight=config.height+margin;if(config.rtl){slideWidth=-slideWidth;} toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR)).forEach(function(hslide,h){hslide.setAttribute('data-index-h',h);transformElement(hslide,'translate3d('+(h*slideWidth)+'px, 0, 0)');if(hslide.classList.contains('stack')){toArray(hslide.querySelectorAll('section')).forEach(function(vslide,v){vslide.setAttribute('data-index-h',h);vslide.setAttribute('data-index-v',v);transformElement(vslide,'translate3d(0, '+(v*slideHeight)+'px, 0)');});}});toArray(dom.background.childNodes).forEach(function(hbackground,h){transformElement(hbackground,'translate3d('+(h*slideWidth)+'px, 0, 0)');toArray(hbackground.querySelectorAll('.slide-background')).forEach(function(vbackground,v){transformElement(vbackground,'translate3d(0, '+(v*slideHeight)+'px, 0)');});});} function updateOverview(){var margin=70;var slideWidth=config.width+margin,slideHeight=config.height+margin;if(config.rtl){slideWidth=-slideWidth;} transformSlides({overview:['translateX('+(-indexh*slideWidth)+'px)','translateY('+(-indexv*slideHeight)+'px)','translateZ('+(window.innerWidth<400?-1000:-2500)+'px)'].join(' ')});} function deactivateOverview(){if(config.overview){overview=false;dom.wrapper.classList.remove('overview');dom.wrapper.classList.remove('overview-animated');dom.wrapper.classList.add('overview-deactivating');setTimeout(function(){dom.wrapper.classList.remove('overview-deactivating');},1);dom.wrapper.appendChild(dom.background);toArray(dom.wrapper.querySelectorAll(SLIDES_SELECTOR)).forEach(function(slide){transformElement(slide,'');slide.removeEventListener('click',onOverviewSlideClicked,true);});toArray(dom.background.querySelectorAll('.slide-background')).forEach(function(background){transformElement(background,'');});transformSlides({overview:''});slide(indexh,indexv);layout();cueAutoSlide();dispatchEvent('overviewhidden',{'indexh':indexh,'indexv':indexv,'currentSlide':currentSlide});}} function toggleOverview(override){if(typeof override==='boolean'){override?activateOverview():deactivateOverview();} else{isOverview()?deactivateOverview():activateOverview();}} function isOverview(){return overview;} function isVerticalSlide(slide){slide=slide?slide:currentSlide;return slide&&slide.parentNode&&!!slide.parentNode.nodeName.match(/section/i);} function enterFullscreen(){var element=document.body;var requestMethod=element.requestFullScreen||element.webkitRequestFullscreen||element.webkitRequestFullScreen||element.mozRequestFullScreen||element.msRequestFullscreen;if(requestMethod){requestMethod.apply(element);}} function pause(){if(config.pause){var wasPaused=dom.wrapper.classList.contains('paused');cancelAutoSlide();dom.wrapper.classList.add('paused');if(wasPaused===false){dispatchEvent('paused');}}} function resume(){var wasPaused=dom.wrapper.classList.contains('paused');dom.wrapper.classList.remove('paused');cueAutoSlide();if(wasPaused){dispatchEvent('resumed');}} function togglePause(override){if(typeof override==='boolean'){override?pause():resume();} else{isPaused()?resume():pause();}} function isPaused(){return dom.wrapper.classList.contains('paused');} function toggleAutoSlide(override){if(typeof override==='boolean'){override?resumeAutoSlide():pauseAutoSlide();} else{autoSlidePaused?resumeAutoSlide():pauseAutoSlide();}} function isAutoSliding(){return!!(autoSlide&&!autoSlidePaused);} function slide(h,v,f,o){previousSlide=currentSlide;var horizontalSlides=dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR);if(v===undefined&&!isOverview()){v=getPreviousVerticalIndex(horizontalSlides[h]);} if(previousSlide&&previousSlide.parentNode&&previousSlide.parentNode.classList.contains('stack')){setPreviousVerticalIndex(previousSlide.parentNode,indexv);} var stateBefore=state.concat();state.length=0;var indexhBefore=indexh||0,indexvBefore=indexv||0;indexh=updateSlides(HORIZONTAL_SLIDES_SELECTOR,h===undefined?indexh:h);indexv=updateSlides(VERTICAL_SLIDES_SELECTOR,v===undefined?indexv:v);updateSlidesVisibility();layout();stateLoop:for(var i=0,len=state.length;i0){verticalSlide.classList.remove('present');verticalSlide.classList.remove('past');verticalSlide.classList.add('future');verticalSlide.setAttribute('aria-hidden','true');}});});} function sortAllFragments(){var horizontalSlides=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR));horizontalSlides.forEach(function(horizontalSlide){var verticalSlides=toArray(horizontalSlide.querySelectorAll('section'));verticalSlides.forEach(function(verticalSlide,y){sortFragments(verticalSlide.querySelectorAll('.fragment'));});if(verticalSlides.length===0)sortFragments(horizontalSlide.querySelectorAll('.fragment'));});} function updateSlides(selector,index){var slides=toArray(dom.wrapper.querySelectorAll(selector)),slidesLength=slides.length;var printMode=isPrintingPDF();if(slidesLength){if(config.loop){index%=slidesLength;if(index<0){index=slidesLength+index;}} index=Math.max(Math.min(index,slidesLength-1),0);for(var i=0;iindex){element.classList.add(reverse?'past':'future');if(config.fragments){var futureFragments=toArray(element.querySelectorAll('.fragment.visible'));while(futureFragments.length){var futureFragment=futureFragments.pop();futureFragment.classList.remove('visible');futureFragment.classList.remove('current-fragment');}}}} slides[index].classList.add('present');slides[index].removeAttribute('hidden');slides[index].removeAttribute('aria-hidden');var slideState=slides[index].getAttribute('data-state');if(slideState){state=state.concat(slideState.split(' '));}} else{index=0;} return index;} function updateSlidesVisibility(){var horizontalSlides=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR)),horizontalSlidesLength=horizontalSlides.length,distanceX,distanceY;if(horizontalSlidesLength&&typeof indexh!=='undefined'){var viewDistance=isOverview()?10:config.viewDistance;if(isMobileDevice){viewDistance=isOverview()?6:2;} if(isPrintingPDF()){viewDistance=Number.MAX_VALUE;} for(var x=0;xindexh){backgroundh.classList.add(horizontalFuture);} else{backgroundh.classList.add('present');currentBackground=backgroundh;} if(includeAll||h===indexh){toArray(backgroundh.querySelectorAll('.slide-background')).forEach(function(backgroundv,v){backgroundv.classList.remove('past');backgroundv.classList.remove('present');backgroundv.classList.remove('future');if(vindexv){backgroundv.classList.add('future');} else{backgroundv.classList.add('present');if(h===indexh)currentBackground=backgroundv;}});}});if(previousBackground){var previousVideo=previousBackground.querySelector('video');if(previousVideo)previousVideo.pause();} if(currentBackground){var currentVideo=currentBackground.querySelector('video');if(currentVideo){currentVideo.currentTime=0;currentVideo.play();} var backgroundImageURL=currentBackground.style.backgroundImage||'';if(/\.gif/i.test(backgroundImageURL)){currentBackground.style.backgroundImage='';window.getComputedStyle(currentBackground).opacity;currentBackground.style.backgroundImage=backgroundImageURL;} var previousBackgroundHash=previousBackground?previousBackground.getAttribute('data-background-hash'):null;var currentBackgroundHash=currentBackground.getAttribute('data-background-hash');if(currentBackgroundHash&¤tBackgroundHash===previousBackgroundHash&¤tBackground!==previousBackground){dom.background.classList.add('no-transition');} previousBackground=currentBackground;} if(currentSlide){['has-light-background','has-dark-background'].forEach(function(classToBubble){if(currentSlide.classList.contains(classToBubble)){dom.wrapper.classList.add(classToBubble);} else{dom.wrapper.classList.remove(classToBubble);}});} setTimeout(function(){dom.background.classList.remove('no-transition');},1);} function updateParallax(){if(config.parallaxBackgroundImage){var horizontalSlides=dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR),verticalSlides=dom.wrapper.querySelectorAll(VERTICAL_SLIDES_SELECTOR);var backgroundSize=dom.background.style.backgroundSize.split(' '),backgroundWidth,backgroundHeight;if(backgroundSize.length===1){backgroundWidth=backgroundHeight=parseInt(backgroundSize[0],10);} else{backgroundWidth=parseInt(backgroundSize[0],10);backgroundHeight=parseInt(backgroundSize[1],10);} var slideWidth=dom.background.offsetWidth,horizontalSlideCount=horizontalSlides.length,horizontalOffsetMultiplier,horizontalOffset;if(typeof config.parallaxBackgroundHorizontal==='number'){horizontalOffsetMultiplier=config.parallaxBackgroundHorizontal;} else{horizontalOffsetMultiplier=(backgroundWidth-slideWidth)/(horizontalSlideCount-1);} horizontalOffset=horizontalOffsetMultiplier*indexh*-1;var slideHeight=dom.background.offsetHeight,verticalSlideCount=verticalSlides.length,verticalOffsetMultiplier,verticalOffset;if(typeof config.parallaxBackgroundVertical==='number'){verticalOffsetMultiplier=config.parallaxBackgroundVertical;} else{verticalOffsetMultiplier=(backgroundHeight-slideHeight)/(verticalSlideCount-1);} verticalOffset=verticalSlideCount>0?verticalOffsetMultiplier*indexv*1:0;dom.background.style.backgroundPosition=horizontalOffset+'px '+-verticalOffset+'px';}} function showSlide(slide){slide.style.display='block';toArray(slide.querySelectorAll('img[data-src], video[data-src], audio[data-src], iframe[data-src]')).forEach(function(element){element.setAttribute('src',element.getAttribute('data-src'));element.removeAttribute('data-src');});toArray(slide.querySelectorAll('video, audio')).forEach(function(media){var sources=0;toArray(media.querySelectorAll('source[data-src]')).forEach(function(source){source.setAttribute('src',source.getAttribute('data-src'));source.removeAttribute('data-src');sources+=1;});if(sources>0){media.load();}});var indices=getIndices(slide);var background=getSlideBackground(indices.h,indices.v);if(background){background.style.display='block';if(background.hasAttribute('data-loaded')===false){background.setAttribute('data-loaded','true');var backgroundImage=slide.getAttribute('data-background-image'),backgroundVideo=slide.getAttribute('data-background-video'),backgroundVideoLoop=slide.hasAttribute('data-background-video-loop'),backgroundIframe=slide.getAttribute('data-background-iframe');if(backgroundImage){background.style.backgroundImage='url('+backgroundImage+')';} else if(backgroundVideo&&!isSpeakerNotes()){var video=document.createElement('video');if(backgroundVideoLoop){video.setAttribute('loop','');} backgroundVideo.split(',').forEach(function(source){video.innerHTML+='';});background.appendChild(video);} else if(backgroundIframe){var iframe=document.createElement('iframe');iframe.setAttribute('src',backgroundIframe);iframe.style.width='100%';iframe.style.height='100%';iframe.style.maxHeight='100%';iframe.style.maxWidth='100%';background.appendChild(iframe);}}}} function hideSlide(slide){slide.style.display='none';var indices=getIndices(slide);var background=getSlideBackground(indices.h,indices.v);if(background){background.style.display='none';}} function availableRoutes(){var horizontalSlides=dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR),verticalSlides=dom.wrapper.querySelectorAll(VERTICAL_SLIDES_SELECTOR);var routes={left:indexh>0||config.loop,right:indexh0,down:indexv0,next:!!hiddenFragments.length};} else{return{prev:false,next:false};}} function formatEmbeddedContent(){toArray(dom.slides.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(el){var src=el.getAttribute('src');if(!/enablejsapi\=1/gi.test(src)){el.setAttribute('src',src+(!/\?/.test(src)?'?':'&')+'enablejsapi=1');}});toArray(dom.slides.querySelectorAll('iframe[src*="player.vimeo.com/"]')).forEach(function(el){var src=el.getAttribute('src');if(!/api\=1/gi.test(src)){el.setAttribute('src',src+(!/\?/.test(src)?'?':'&')+'api=1');}});} function startEmbeddedContent(slide){if(slide&&!isSpeakerNotes()){toArray(slide.querySelectorAll('img[src$=".gif"]')).forEach(function(el){el.setAttribute('src',el.getAttribute('src'));});toArray(slide.querySelectorAll('video, audio')).forEach(function(el){if(el.hasAttribute('data-autoplay')){el.play();}});toArray(slide.querySelectorAll('iframe')).forEach(function(el){el.contentWindow.postMessage('slide:start','*');});toArray(slide.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(el){if(el.hasAttribute('data-autoplay')){el.contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}','*');}});toArray(slide.querySelectorAll('iframe[src*="player.vimeo.com/"]')).forEach(function(el){if(el.hasAttribute('data-autoplay')){el.contentWindow.postMessage('{"method":"play"}','*');}});}} function stopEmbeddedContent(slide){if(slide&&slide.parentNode){toArray(slide.querySelectorAll('video, audio')).forEach(function(el){if(!el.hasAttribute('data-ignore')){el.pause();}});toArray(slide.querySelectorAll('iframe')).forEach(function(el){el.contentWindow.postMessage('slide:stop','*');});toArray(slide.querySelectorAll('iframe[src*="youtube.com/embed/"]')).forEach(function(el){if(!el.hasAttribute('data-ignore')&&typeof el.contentWindow.postMessage==='function'){el.contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}','*');}});toArray(slide.querySelectorAll('iframe[src*="player.vimeo.com/"]')).forEach(function(el){if(!el.hasAttribute('data-ignore')&&typeof el.contentWindow.postMessage==='function'){el.contentWindow.postMessage('{"method":"pause"}','*');}});}} function getProgress(){var horizontalSlides=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR));var totalCount=getTotalSlides();var pastCount=0;mainLoop:for(var i=0;i0){var visibleFragments=currentSlide.querySelectorAll('.fragment.visible');var fragmentWeight=0.9;pastCount+=(visibleFragments.length/allFragments.length)*fragmentWeight;}} return pastCount/(totalCount-1);} function isSpeakerNotes(){return!!window.location.search.match(/receiver/gi);} function readURL(){var hash=window.location.hash;var bits=hash.slice(2).split('/'),name=hash.replace(/#|\//gi,'');if(isNaN(parseInt(bits[0],10))&&name.length){var element;if(/^[a-zA-Z][\w:.-]*$/.test(name)){element=document.getElementById(name);} if(element){var indices=Reveal.getIndices(element);slide(indices.h,indices.v);} else{slide(indexh||0,indexv||0);}} else{var h=parseInt(bits[0],10)||0,v=parseInt(bits[1],10)||0;if(h!==indexh||v!==indexv){slide(h,v);}}} function writeURL(delay){if(config.history){clearTimeout(writeURLTimeout);if(typeof delay==='number'){writeURLTimeout=setTimeout(writeURL,delay);} else if(currentSlide){var url='/';var id=currentSlide.getAttribute('id');if(id){id=id.toLowerCase();id=id.replace(/[^a-zA-Z0-9\-\_\:\.]/g,'');} if(typeof id==='string'&&id.length){url='/'+id;} else{if(indexh>0||indexv>0)url+=indexh;if(indexv>0)url+='/'+indexv;} window.location.hash=url;}}} function getIndices(slide){var h=indexh,v=indexv,f;if(slide){var isVertical=isVerticalSlide(slide);var slideh=isVertical?slide.parentNode:slide;var horizontalSlides=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR));h=Math.max(horizontalSlides.indexOf(slideh),0);v=undefined;if(isVertical){v=Math.max(toArray(slide.parentNode.querySelectorAll('section')).indexOf(slide),0);}} if(!slide&¤tSlide){var hasFragments=currentSlide.querySelectorAll('.fragment').length>0;if(hasFragments){var currentFragment=currentSlide.querySelector('.current-fragment');if(currentFragment&¤tFragment.hasAttribute('data-fragment-index')){f=parseInt(currentFragment.getAttribute('data-fragment-index'),10);} else{f=currentSlide.querySelectorAll('.fragment.visible').length-1;}}} return{h:h,v:v,f:f};} function getTotalSlides(){return dom.wrapper.querySelectorAll(SLIDES_SELECTOR+':not(.stack)').length;} function getSlide(x,y){var horizontalSlide=dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR)[x];var verticalSlides=horizontalSlide&&horizontalSlide.querySelectorAll('section');if(verticalSlides&&verticalSlides.length&&typeof y==='number'){return verticalSlides?verticalSlides[y]:undefined;} return horizontalSlide;} function getSlideBackground(x,y){if(isPrintingPDF()){var slide=getSlide(x,y);if(slide){var background=slide.querySelector('.slide-background');if(background&&background.parentNode===slide){return background;}} return undefined;} var horizontalBackground=dom.wrapper.querySelectorAll('.backgrounds>.slide-background')[x];var verticalBackgrounds=horizontalBackground&&horizontalBackground.querySelectorAll('.slide-background');if(verticalBackgrounds&&verticalBackgrounds.length&&typeof y==='number'){return verticalBackgrounds?verticalBackgrounds[y]:undefined;} return horizontalBackground;} function getState(){var indices=getIndices();return{indexh:indices.h,indexv:indices.v,indexf:indices.f,paused:isPaused(),overview:isOverview()};} function setState(state){if(typeof state==='object'){slide(deserialize(state.indexh),deserialize(state.indexv),deserialize(state.indexf));var pausedFlag=deserialize(state.paused),overviewFlag=deserialize(state.overview);if(typeof pausedFlag==='boolean'&&pausedFlag!==isPaused()){togglePause(pausedFlag);} if(typeof overviewFlag==='boolean'&&overviewFlag!==isOverview()){toggleOverview(overviewFlag);}}} function sortFragments(fragments){fragments=toArray(fragments);var ordered=[],unordered=[],sorted=[];fragments.forEach(function(fragment,i){if(fragment.hasAttribute('data-fragment-index')){var index=parseInt(fragment.getAttribute('data-fragment-index'),10);if(!ordered[index]){ordered[index]=[];} ordered[index].push(fragment);} else{unordered.push([fragment]);}});ordered=ordered.concat(unordered);var index=0;ordered.forEach(function(group){group.forEach(function(fragment){sorted.push(fragment);fragment.setAttribute('data-fragment-index',index);});index++;});return sorted;} function navigateFragment(index,offset){if(currentSlide&&config.fragments){var fragments=sortFragments(currentSlide.querySelectorAll('.fragment'));if(fragments.length){if(typeof index!=='number'){var lastVisibleFragment=sortFragments(currentSlide.querySelectorAll('.fragment.visible')).pop();if(lastVisibleFragment){index=parseInt(lastVisibleFragment.getAttribute('data-fragment-index')||0,10);} else{index=-1;}} if(typeof offset==='number'){index+=offset;} var fragmentsShown=[],fragmentsHidden=[];toArray(fragments).forEach(function(element,i){if(element.hasAttribute('data-fragment-index')){i=parseInt(element.getAttribute('data-fragment-index'),10);} if(i<=index){if(!element.classList.contains('visible'))fragmentsShown.push(element);element.classList.add('visible');element.classList.remove('current-fragment');dom.statusDiv.textContent=element.textContent;if(i===index){element.classList.add('current-fragment');}} else{if(element.classList.contains('visible'))fragmentsHidden.push(element);element.classList.remove('visible');element.classList.remove('current-fragment');}});if(fragmentsHidden.length){dispatchEvent('fragmenthidden',{fragment:fragmentsHidden[0],fragments:fragmentsHidden});} if(fragmentsShown.length){dispatchEvent('fragmentshown',{fragment:fragmentsShown[0],fragments:fragmentsShown});} updateControls();updateProgress();return!!(fragmentsShown.length||fragmentsHidden.length);}} return false;} function nextFragment(){return navigateFragment(null,1);} function previousFragment(){return navigateFragment(null,-1);} function cueAutoSlide(){cancelAutoSlide();if(currentSlide){var currentFragment=currentSlide.querySelector('.current-fragment');var fragmentAutoSlide=currentFragment?currentFragment.getAttribute('data-autoslide'):null;var parentAutoSlide=currentSlide.parentNode?currentSlide.parentNode.getAttribute('data-autoslide'):null;var slideAutoSlide=currentSlide.getAttribute('data-autoslide');if(fragmentAutoSlide){autoSlide=parseInt(fragmentAutoSlide,10);} else if(slideAutoSlide){autoSlide=parseInt(slideAutoSlide,10);} else if(parentAutoSlide){autoSlide=parseInt(parentAutoSlide,10);} else{autoSlide=config.autoSlide;} toArray(currentSlide.querySelectorAll('video, audio')).forEach(function(el){if(el.hasAttribute('data-autoplay')){if(autoSlide&&el.duration*1000>autoSlide){autoSlide=(el.duration*1000)+1000;}}});if(autoSlide&&!autoSlidePaused&&!isPaused()&&!isOverview()&&(!Reveal.isLastSlide()||availableFragments().next||config.loop===true)){autoSlideTimeout=setTimeout(navigateNext,autoSlide);autoSlideStartTime=Date.now();} if(autoSlidePlayer){autoSlidePlayer.setPlaying(autoSlideTimeout!==-1);}}} function cancelAutoSlide(){clearTimeout(autoSlideTimeout);autoSlideTimeout=-1;} function pauseAutoSlide(){if(autoSlide&&!autoSlidePaused){autoSlidePaused=true;dispatchEvent('autoslidepaused');clearTimeout(autoSlideTimeout);if(autoSlidePlayer){autoSlidePlayer.setPlaying(false);}}} function resumeAutoSlide(){if(autoSlide&&autoSlidePaused){autoSlidePaused=false;dispatchEvent('autoslideresumed');cueAutoSlide();}} function navigateLeft(){if(config.rtl){if((isOverview()||nextFragment()===false)&&availableRoutes().left){slide(indexh+1);}} else if((isOverview()||previousFragment()===false)&&availableRoutes().left){slide(indexh-1);}} function navigateRight(){if(config.rtl){if((isOverview()||previousFragment()===false)&&availableRoutes().right){slide(indexh-1);}} else if((isOverview()||nextFragment()===false)&&availableRoutes().right){slide(indexh+1);}} function navigateUp(){if((isOverview()||previousFragment()===false)&&availableRoutes().up){slide(indexh,indexv-1);}} function navigateDown(){if((isOverview()||nextFragment()===false)&&availableRoutes().down){slide(indexh,indexv+1);}} function navigatePrev(){if(previousFragment()===false){if(availableRoutes().up){navigateUp();} else{var previousSlide;if(config.rtl){previousSlide=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR+'.future')).pop();} else{previousSlide=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR+'.past')).pop();} if(previousSlide){var v=(previousSlide.querySelectorAll('section').length-1)||undefined;var h=indexh-1;slide(h,v);}}}} function navigateNext(){if(nextFragment()===false){if(availableRoutes().down){navigateDown();} else if(config.rtl){navigateLeft();} else{navigateRight();}} cueAutoSlide();} function onUserInput(event){if(config.autoSlideStoppable){pauseAutoSlide();}} function onDocumentKeyPress(event){if(event.shiftKey&&event.charCode===63){if(dom.overlay){closeOverlay();} else{showHelp(true);}}} function onDocumentKeyDown(event){if(typeof config.keyboardCondition==='function'&&config.keyboardCondition()===false){return true;} var autoSlideWasPaused=autoSlidePaused;onUserInput(event);var activeElementIsCE=document.activeElement&&document.activeElement.contentEditable!=='inherit';var activeElementIsInput=document.activeElement&&document.activeElement.tagName&&/input|textarea/i.test(document.activeElement.tagName);if(activeElementIsCE||activeElementIsInput||(event.shiftKey&&event.keyCode!==32)||event.altKey||event.ctrlKey||event.metaKey)return;if(isPaused()&&[66,190,191].indexOf(event.keyCode)===-1){return false;} var triggered=false;if(typeof config.keyboard==='object'){for(var key in config.keyboard){if(parseInt(key,10)===event.keyCode){var value=config.keyboard[key];if(typeof value==='function'){value.apply(null,[event]);} else if(typeof value==='string'&&typeof Reveal[value]==='function'){Reveal[value].call();} triggered=true;}}} if(triggered===false){triggered=true;switch(event.keyCode){case 80:case 33:navigatePrev();break;case 78:case 34:navigateNext();break;case 72:case 37:navigateLeft();break;case 76:case 39:navigateRight();break;case 75:case 38:navigateUp();break;case 74:case 40:navigateDown();break;case 36:slide(0);break;case 35:slide(Number.MAX_VALUE);break;case 32:isOverview()?deactivateOverview():event.shiftKey?navigatePrev():navigateNext();break;case 13:isOverview()?deactivateOverview():triggered=false;break;case 58:case 59:case 66:case 190:case 191:togglePause();break;case 70:enterFullscreen();break;case 65:if(config.autoSlideStoppable)toggleAutoSlide(autoSlideWasPaused);break;default:triggered=false;}} if(triggered){event.preventDefault&&event.preventDefault();} else if((event.keyCode===27||event.keyCode===79)&&features.transforms3d){if(dom.overlay){closeOverlay();} else{toggleOverview();} event.preventDefault&&event.preventDefault();} cueAutoSlide();} function onTouchStart(event){touch.startX=event.touches[0].clientX;touch.startY=event.touches[0].clientY;touch.startCount=event.touches.length;if(event.touches.length===2&&config.overview){touch.startSpan=distanceBetween({x:event.touches[1].clientX,y:event.touches[1].clientY},{x:touch.startX,y:touch.startY});}} function onTouchMove(event){if(!touch.captured){onUserInput(event);var currentX=event.touches[0].clientX;var currentY=event.touches[0].clientY;if(event.touches.length===2&&touch.startCount===2&&config.overview){var currentSpan=distanceBetween({x:event.touches[1].clientX,y:event.touches[1].clientY},{x:touch.startX,y:touch.startY});if(Math.abs(touch.startSpan-currentSpan)>touch.threshold){touch.captured=true;if(currentSpantouch.threshold&&Math.abs(deltaX)>Math.abs(deltaY)){touch.captured=true;navigateLeft();} else if(deltaX<-touch.threshold&&Math.abs(deltaX)>Math.abs(deltaY)){touch.captured=true;navigateRight();} else if(deltaY>touch.threshold){touch.captured=true;navigateUp();} else if(deltaY<-touch.threshold){touch.captured=true;navigateDown();} if(config.embedded){if(touch.captured||isVerticalSlide(currentSlide)){event.preventDefault();}} else{event.preventDefault();}}} else if(navigator.userAgent.match(/android/gi)){event.preventDefault();}} function onTouchEnd(event){touch.captured=false;} function onPointerDown(event){if(event.pointerType===event.MSPOINTER_TYPE_TOUCH||event.pointerType==="touch"){event.touches=[{clientX:event.clientX,clientY:event.clientY}];onTouchStart(event);}} function onPointerMove(event){if(event.pointerType===event.MSPOINTER_TYPE_TOUCH||event.pointerType==="touch"){event.touches=[{clientX:event.clientX,clientY:event.clientY}];onTouchMove(event);}} function onPointerUp(event){if(event.pointerType===event.MSPOINTER_TYPE_TOUCH||event.pointerType==="touch"){event.touches=[{clientX:event.clientX,clientY:event.clientY}];onTouchEnd(event);}} function onDocumentMouseScroll(event){if(Date.now()-lastMouseWheelStep>600){lastMouseWheelStep=Date.now();var delta=event.detail||-event.wheelDelta;if(delta>0){navigateNext();} else{navigatePrev();}}} function onProgressClicked(event){onUserInput(event);event.preventDefault();var slidesTotal=toArray(dom.wrapper.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR)).length;var slideIndex=Math.floor((event.clientX/dom.wrapper.offsetWidth)*slidesTotal);if(config.rtl){slideIndex=slidesTotal-slideIndex;} slide(slideIndex);} function onNavigateLeftClicked(event){event.preventDefault();onUserInput();navigateLeft();} function onNavigateRightClicked(event){event.preventDefault();onUserInput();navigateRight();} function onNavigateUpClicked(event){event.preventDefault();onUserInput();navigateUp();} function onNavigateDownClicked(event){event.preventDefault();onUserInput();navigateDown();} function onNavigatePrevClicked(event){event.preventDefault();onUserInput();navigatePrev();} function onNavigateNextClicked(event){event.preventDefault();onUserInput();navigateNext();} function onWindowHashChange(event){readURL();} function onWindowResize(event){layout();} function onPageVisibilityChange(event){var isHidden=document.webkitHidden||document.msHidden||document.hidden;if(isHidden===false&&document.activeElement!==document.body){if(typeof document.activeElement.blur==='function'){document.activeElement.blur();} document.body.focus();}} function onOverviewSlideClicked(event){if(eventsAreBound&&isOverview()){event.preventDefault();var element=event.target;while(element&&!element.nodeName.match(/section/gi)){element=element.parentNode;} if(element&&!element.classList.contains('disabled')){deactivateOverview();if(element.nodeName.match(/section/gi)){var h=parseInt(element.getAttribute('data-index-h'),10),v=parseInt(element.getAttribute('data-index-v'),10);slide(h,v);}}}} function onPreviewLinkClicked(event){if(event.currentTarget&&event.currentTarget.hasAttribute('href')){var url=event.currentTarget.getAttribute('href');if(url){showPreview(url);event.preventDefault();}}} function onAutoSlidePlayerClick(event){if(Reveal.isLastSlide()&&config.loop===false){slide(0,0);resumeAutoSlide();} else if(autoSlidePaused){resumeAutoSlide();} else{pauseAutoSlide();}} function Playback(container,progressCheck){this.diameter=50;this.thickness=3;this.playing=false;this.progress=0;this.progressOffset=1;this.container=container;this.progressCheck=progressCheck;this.canvas=document.createElement('canvas');this.canvas.className='playback';this.canvas.width=this.diameter;this.canvas.height=this.diameter;this.context=this.canvas.getContext('2d');this.container.appendChild(this.canvas);this.render();} Playback.prototype.setPlaying=function(value){var wasPlaying=this.playing;this.playing=value;if(!wasPlaying&&this.playing){this.animate();} else{this.render();}};Playback.prototype.animate=function(){var progressBefore=this.progress;this.progress=this.progressCheck();if(progressBefore>0.8&&this.progress<0.2){this.progressOffset=this.progress;} this.render();if(this.playing){features.requestAnimationFrameMethod.call(window,this.animate.bind(this));}};Playback.prototype.render=function(){var progress=this.playing?this.progress:0,radius=(this.diameter/2)-this.thickness,x=this.diameter/2,y=this.diameter/2,iconSize=14;this.progressOffset+=(1-this.progressOffset)*0.1;var endAngle=(-Math.PI/2)+(progress*(Math.PI*2));var startAngle=(-Math.PI/2)+(this.progressOffset*(Math.PI*2));this.context.save();this.context.clearRect(0,0,this.diameter,this.diameter);this.context.beginPath();this.context.arc(x,y,radius+2,0,Math.PI*2,false);this.context.fillStyle='rgba( 0, 0, 0, 0.4 )';this.context.fill();this.context.beginPath();this.context.arc(x,y,radius,0,Math.PI*2,false);this.context.lineWidth=this.thickness;this.context.strokeStyle='#666';this.context.stroke();if(this.playing){this.context.beginPath();this.context.arc(x,y,radius,startAngle,endAngle,false);this.context.lineWidth=this.thickness;this.context.strokeStyle='#fff';this.context.stroke();} this.context.translate(x-(iconSize/2),y-(iconSize/2));if(this.playing){this.context.fillStyle='#fff';this.context.fillRect(0,0,iconSize/2-2,iconSize);this.context.fillRect(iconSize/2+2,0,iconSize/2-2,iconSize);} else{this.context.beginPath();this.context.translate(2,0);this.context.moveTo(0,0);this.context.lineTo(iconSize-2,iconSize/2);this.context.lineTo(0,iconSize);this.context.fillStyle='#fff';this.context.fill();} this.context.restore();};Playback.prototype.on=function(type,listener){this.canvas.addEventListener(type,listener,false);};Playback.prototype.off=function(type,listener){this.canvas.removeEventListener(type,listener,false);};Playback.prototype.destroy=function(){this.playing=false;if(this.canvas.parentNode){this.container.removeChild(this.canvas);}};Reveal={initialize:initialize,configure:configure,sync:sync,slide:slide,left:navigateLeft,right:navigateRight,up:navigateUp,down:navigateDown,prev:navigatePrev,next:navigateNext,navigateFragment:navigateFragment,prevFragment:previousFragment,nextFragment:nextFragment,navigateTo:slide,navigateLeft:navigateLeft,navigateRight:navigateRight,navigateUp:navigateUp,navigateDown:navigateDown,navigatePrev:navigatePrev,navigateNext:navigateNext,layout:layout,availableRoutes:availableRoutes,availableFragments:availableFragments,toggleOverview:toggleOverview,togglePause:togglePause,toggleAutoSlide:toggleAutoSlide,isOverview:isOverview,isPaused:isPaused,isAutoSliding:isAutoSliding,addEventListeners:addEventListeners,removeEventListeners:removeEventListeners,getState:getState,setState:setState,getProgress:getProgress,getIndices:getIndices,getTotalSlides:getTotalSlides,getSlide:getSlide,getSlideBackground:getSlideBackground,getPreviousSlide:function(){return previousSlide;},getCurrentSlide:function(){return currentSlide;},getScale:function(){return scale;},getConfig:function(){return config;},getQueryHash:function(){var query={};location.search.replace(/[A-Z0-9]+?=([\w\.%-]*)/gi,function(a){query[a.split('=').shift()]=a.split('=').pop();});for(var i in query){var value=query[i];query[i]=deserialize(unescape(value));} return query;},isFirstSlide:function(){return(indexh===0&&indexv===0);},isLastSlide:function(){if(currentSlide){if(currentSlide.nextElementSibling)return false;if(isVerticalSlide(currentSlide)&¤tSlide.parentNode.nextElementSibling)return false;return true;} return false;},isReady:function(){return loaded;},addEventListener:function(type,listener,useCapture){if('addEventListener'in window){(dom.wrapper||document.querySelector('.reveal')).addEventListener(type,listener,useCapture);}},removeEventListener:function(type,listener,useCapture){if('addEventListener'in window){(dom.wrapper||document.querySelector('.reveal')).removeEventListener(type,listener,useCapture);}},triggerKey:function(keyCode){onDocumentKeyDown({keyCode:keyCode});}};return Reveal;}));