diff options
Diffstat (limited to 'js')
| -rw-r--r-- | js/reveal.js | 202 | ||||
| -rw-r--r-- | js/reveal.min.js | 65 |
2 files changed, 183 insertions, 84 deletions
diff --git a/js/reveal.js b/js/reveal.js index a4881e0..33b58cf 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -25,8 +25,7 @@ var Reveal = (function(){ mouseWheel: true, rollingLinks: true, transition: 'default', - theme: 'default', - swipeDist: 40 + theme: 'default' }, // Slides may hold a data-state attribute which we pick up and apply @@ -54,8 +53,17 @@ var Reveal = (function(){ mouseWheelTimeout = 0, // Delays updates to the URL due to a Chrome thumbnailer bug - writeURLTimeout = 0; - + writeURLTimeout = 0, + + // Holds information about the currently ongoing touch input + touch = { + startX: 0, + startY: 0, + startSpan: 0, + startCount: 0, + handled: false, + threshold: 40 + }; /** @@ -82,7 +90,7 @@ var Reveal = (function(){ dom.controlsUp = document.querySelector( '#reveal .controls .up' ); dom.controlsDown = document.querySelector( '#reveal .controls .down' ); - addEvents(); + addEventListeners(); // Copy options over to our config object extend( config, options ); @@ -133,8 +141,8 @@ var Reveal = (function(){ } } - function addEvents() { - // Bind all view events + + function addEventListeners() { document.addEventListener( 'keydown', onDocumentKeyDown, false ); document.addEventListener( 'touchstart', onDocumentTouchStart, false ); document.addEventListener( 'touchmove', onDocumentTouchMove, false ); @@ -146,8 +154,8 @@ var Reveal = (function(){ dom.controlsUp.addEventListener( 'click', preventAndForward( navigateUp ), false ); dom.controlsDown.addEventListener( 'click', preventAndForward( navigateDown ), false ); } - function removeEvents(){ - // Bind all view events + + function removeEventListeners() { document.removeEventListener( 'keydown', onDocumentKeyDown, false ); document.removeEventListener( 'touchstart', onDocumentTouchStart, false ); document.removeEventListener( 'touchmove', onDocumentTouchMove, false ); @@ -159,6 +167,7 @@ var Reveal = (function(){ dom.controlsUp.removeEventListener( 'click', preventAndForward( navigateUp ), false ); dom.controlsDown.removeEventListener( 'click', preventAndForward( navigateDown ), false ); } + /** * Extend object a with the properties of object b. * If there's a conflict, object b takes precedence. @@ -169,6 +178,13 @@ var Reveal = (function(){ } } + function distanceBetween( a, b ) { + var dx = a.x - b.x, + dy = a.y - b.y; + + return Math.sqrt( dx*dx + dy*dy ); + } + /** * Prevents an events defaults behavior calls the * specified delegate. @@ -246,81 +262,97 @@ var Reveal = (function(){ } } + /** - * Handler for the document level 'touchstart' event. - * - * This enables very basic tap interaction for touch - * devices. Added mainly for performance testing of 3D - * transforms on iOS but was so happily surprised with - * how smoothly it runs so I left it in here. Apple +1 - * - * @param {Object} event + * Handler for the document level 'touchstart' event, + * enables support for swipe and pinch gestures. */ - var touchStart = {} - var gesture = false; function onDocumentTouchStart( event ) { - - touchStart = { - x: event.touches[0].clientX, - y: event.touches[0].clientY - }; - if( event.target.tagName.toLowerCase() === 'a' || event.target.tagName.toLowerCase() === 'img' ) { - } else { - event.preventDefault(); - } + touch.startX = event.touches[0].clientX; + touch.startY = event.touches[0].clientY; + touch.startCount = event.touches.length; + + // If there's two touches we need to memorize the distance + // between those two points to detect pinching + if( event.touches.length === 2 ) { + touch.startSpan = distanceBetween( { + x: event.touches[1].clientX, + y: event.touches[1].clientY + }, { + x: touch.startX, + y: touch.startY + } ); + } } + /** + * Handler for the document level 'touchmove' event. + */ function onDocumentTouchMove( event ) { - - event.preventDefault(); - - if(!gesture) { - var touch = { - x: event.touches[0].clientX, - y: event.touches[0].clientY - }; - if((touch.x - touchStart.x) > config.swipeDist){ - gesture = true; - navigateLeft(); - } else if((touch.x - touchStart.x) < -config.swipeDist){ - gesture = true; - navigateRight(); - } else if((touch.y - touchStart.y) > config.swipeDist){ - gesture = true; - navigateUp(); - } else if((touch.y - touchStart.y) < -config.swipeDist){ - gesture = true; - navigateDown(); + // Each touch should only trigger one action + if( !touch.handled ) { + var currentX = event.touches[0].clientX; + var currentY = event.touches[0].clientY; + + // If the touch started off with two points and still has + // two active touches; test for the pinch gesture + if( event.touches.length === 2 && touch.startCount === 2 ) { + + // The current distance in pixels between the two touch points + var currentSpan = distanceBetween( { + x: event.touches[1].clientX, + y: event.touches[1].clientY + }, { + x: touch.startX, + y: touch.startY + } ); + + // If the span is larger than the desire amount we've got + // ourselves a pinch + if( Math.abs( touch.startSpan - currentSpan ) > touch.threshold ) { + touch.handled = true; + + if( currentSpan < touch.startSpan ) { + activateOverview(); + } + else { + deactivateOverview(); + } + } + } + // There was only one touch point, look for a swipe + else if( event.touches.length === 1 ) { + var deltaX = currentX - touch.startX, + deltaY = currentY - touch.startY; + + if( deltaX > touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) { + touch.handled = true; + navigateLeft(); + } + else if( deltaX < -touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) { + touch.handled = true; + navigateRight(); + } + else if( deltaY > touch.threshold ) { + touch.handled = true; + navigateUp(); + } + else if( deltaY < -touch.threshold ) { + touch.handled = true; + navigateDown(); + } + } + + event.preventDefault(); } } + + /** + * Handler for the document level 'touchend' event. + */ function onDocumentTouchEnd( event ) { - if(!gesture){ - // Never prevent taps on anchors and images - if( event.target.tagName.toLowerCase() === 'a' || event.target.tagName.toLowerCase() === 'img' ) { - return; - } - - // Define the extent of the areas that may be tapped - // to navigate - var wt = window.innerWidth * 0.3; - var ht = window.innerHeight * 0.3; - - if( touchStart.x < wt ) { - navigateLeft(); - } - else if( touchStart.x > window.innerWidth - wt ) { - navigateRight(); - } - else if( touchStart.y < ht ) { - navigateUp(); - } - else if( touchStart.y > window.innerHeight - ht ) { - navigateDown(); - } - } - gesture = false; - event.preventDefault(); + touch.handled = false; } /** @@ -706,6 +738,9 @@ var Reveal = (function(){ var verticalFragments = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR + '.present .fragment:not(.visible)' ); if( verticalFragments.length ) { verticalFragments[0].classList.add( 'visible' ); + + // Notify subscribers of the change + dispatchEvent( 'fragmentshown', { fragment: verticalFragments[0] } ); return true; } } @@ -714,6 +749,9 @@ var Reveal = (function(){ var horizontalFragments = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.present .fragment:not(.visible)' ); if( horizontalFragments.length ) { horizontalFragments[0].classList.add( 'visible' ); + + // Notify subscribers of the change + dispatchEvent( 'fragmentshown', { fragment: horizontalFragments[0] } ); return true; } } @@ -733,6 +771,9 @@ var Reveal = (function(){ var verticalFragments = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR + '.present .fragment.visible' ); if( verticalFragments.length ) { verticalFragments[ verticalFragments.length - 1 ].classList.remove( 'visible' ); + + // Notify subscribers of the change + dispatchEvent( 'fragmenthidden', { fragment: verticalFragments[0] } ); return true; } } @@ -741,6 +782,9 @@ var Reveal = (function(){ var horizontalFragments = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.present .fragment.visible' ); if( horizontalFragments.length ) { horizontalFragments[ horizontalFragments.length - 1 ].classList.remove( 'visible' ); + + // Notify subscribers of the change + dispatchEvent( 'fragmenthidden', { fragment: horizontalFragments[0] } ); return true; } } @@ -826,7 +870,11 @@ var Reveal = (function(){ availableRoutes().down ? navigateDown() : navigateRight(); } } - function overviewToggle (){ + + /** + * Toggles the slide overview mode on and off. + */ + function toggleOverview() { if( overviewIsActive() ) { deactivateOverview(); } @@ -843,9 +891,7 @@ var Reveal = (function(){ navigateRight: navigateRight, navigateUp: navigateUp, navigateDown: navigateDown, - overviewToggle: overviewToggle, - addEvents: addEvents, - removeEvents: removeEvents, + toggleOverview: toggleOverview, // Forward event binding to the reveal DOM element addEventListener: function( type, listener, useCapture ) { diff --git a/js/reveal.min.js b/js/reveal.min.js index 7977da4..41f9347 100644 --- a/js/reveal.min.js +++ b/js/reveal.min.js @@ -1,7 +1,60 @@ /*! - reveal.js 1.3 - http://lab.hakim.se/reveal-js - MIT licensed - - Copyright (C) 2012 Hakim El Hattab, http://hakim.se - */var Reveal=(function(){var HORIZONTAL_SLIDES_SELECTOR='#reveal .slides>section',VERTICAL_SLIDES_SELECTOR='#reveal .slides>section.present>section',IS_TOUCH_DEVICE=!!('ontouchstart'in window),indexh=0,indexv=0,config={controls:false,progress:false,history:false,loop:false,mouseWheel:true,rollingLinks:true,transition:'default',theme:'default',swipeDist:40},state=[],dom={},supports3DTransforms=document.body.style['perspectiveProperty']!==undefined||document.body.style['WebkitPerspective']!==undefined||document.body.style['MozPerspective']!==undefined||document.body.style['msPerspective']!==undefined||document.body.style['OPerspective']!==undefined,supports2DTransforms=document.body.style['transformProperty']!==undefined||document.body.style['WebkitTransform']!==undefined||document.body.style['MozTransform']!==undefined||document.body.style['msTransform']!==undefined||document.body.style['OTransform']!==undefined,mouseWheelTimeout=0,writeURLTimeout=0;function initialize(options){if(!supports2DTransforms&&!supports3DTransforms){document.body.setAttribute('class','no-transforms');return;}dom.wrapper=document.querySelector('#reveal');dom.progress=document.querySelector('#reveal .progress');dom.progressbar=document.querySelector('#reveal .progress span');dom.controls=document.querySelector('#reveal .controls');dom.controlsLeft=document.querySelector('#reveal .controls .left');dom.controlsRight=document.querySelector('#reveal .controls .right');dom.controlsUp=document.querySelector('#reveal .controls .up');dom.controlsDown=document.querySelector('#reveal .controls .down');addEvents();extend(config,options);if(supports3DTransforms===false){config.transition='linear';}if(config.controls){dom.controls.style.display='block';}if(config.progress){dom.progress.style.display='block';}if(config.transition!=='default'){dom.wrapper.classList.add(config.transition);}if(config.theme!=='default'){dom.wrapper.classList.add(config.theme);}if(config.mouseWheel){document.addEventListener('DOMMouseScroll',onDocumentMouseScroll,false);document.addEventListener('mousewheel',onDocumentMouseScroll,false);}if(config.rollingLinks){linkify();}readURL();if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow='scroll';document.body.style.height='120%';window.addEventListener('load',removeAddressBar,false);window.addEventListener('orientationchange',removeAddressBar,false);}}function addEvents(){document.addEventListener('keydown',onDocumentKeyDown,false);document.addEventListener('touchstart',onDocumentTouchStart,false);document.addEventListener('touchmove',onDocumentTouchMove,false);document.addEventListener('touchend',onDocumentTouchEnd,false);window.addEventListener('hashchange',onWindowHashChange,false);dom.controlsLeft.addEventListener('click',preventAndForward(navigateLeft),false);dom.controlsRight.addEventListener('click',preventAndForward(navigateRight),false);dom.controlsUp.addEventListener('click',preventAndForward(navigateUp),false);dom.controlsDown.addEventListener('click',preventAndForward(navigateDown),false);}function removeEvents(){document.removeEventListener('keydown',onDocumentKeyDown,false);document.removeEventListener('touchstart',onDocumentTouchStart,false);document.removeEventListener('touchmove',onDocumentTouchMove,false);document.removeEventListener('touchend',onDocumentTouchEnd,false);window.removeEventListener('hashchange',onWindowHashChange,false);dom.controlsLeft.removeEventListener('click',preventAndForward(navigateLeft),false);dom.controlsRight.removeEventListener('click',preventAndForward(navigateRight),false);dom.controlsUp.removeEventListener('click',preventAndForward(navigateUp),false);dom.controlsDown.removeEventListener('click',preventAndForward(navigateDown),false);}function extend(a,b){for(var i in b){a[i]=b[i];}}function preventAndForward(delegate){return function(event){event.preventDefault();delegate.call();}}function removeAddressBar(){setTimeout(function(){window.scrollTo(0,1);},0);}function onDocumentKeyDown(event){if(event.target.contentEditable!='inherit'||event.shiftKey||event.altKey||event.ctrlKey||event.metaKey)return;var triggered=false;switch(event.keyCode){case 80:case 33:navigatePrev();triggered=true;break;case 78:case 34:navigateNext();triggered=true;break;case 72:case 37:navigateLeft();triggered=true;break;case 76:case 39:navigateRight();triggered=true;break;case 75:case 38:navigateUp();triggered=true;break;case 74:case 40:navigateDown();triggered=true;break;case 36:navigateTo(0);triggered=true;break;case 35:navigateTo(Number.MAX_VALUE);triggered=true;break;case 32:overviewIsActive()?deactivateOverview():navigateNext();triggered=true;break;case 13:if(overviewIsActive()){deactivateOverview();triggered=true;}break;}if(triggered){event.preventDefault();}else if(event.keyCode===27&&supports3DTransforms){if(overviewIsActive()){deactivateOverview();}else{activateOverview();}event.preventDefault();}}var touchStart={}var gesture=false;function onDocumentTouchStart(event){touchStart={x:event.touches[0].clientX,y:event.touches[0].clientY};if(event.target.tagName.toLowerCase()==='a'||event.target.tagName.toLowerCase()==='img'){}else{event.preventDefault();}}function onDocumentTouchMove(event){event.preventDefault();if(!gesture){var touch={x:event.touches[0].clientX,y:event.touches[0].clientY};if((touch.x-touchStart.x)>config.swipeDist){gesture=true;navigateLeft();}else if((touch.x-touchStart.x)<-config.swipeDist){gesture=true;navigateRight();}else if((touch.y-touchStart.y)>config.swipeDist){gesture=true;navigateUp();}else if((touch.y-touchStart.y)<-config.swipeDist){gesture=true;navigateDown();}}}function onDocumentTouchEnd(event){if(!gesture){if(event.target.tagName.toLowerCase()==='a'||event.target.tagName.toLowerCase()==='img'){return;}var wt=window.innerWidth*0.3;var ht=window.innerHeight*0.3;if(touchStart.x<wt){navigateLeft();}else if(touchStart.x>window.innerWidth-wt){navigateRight();}else if(touchStart.y<ht){navigateUp();}else if(touchStart.y>window.innerHeight-ht){navigateDown();}}gesture=false;event.preventDefault();}function onDocumentMouseScroll(event){clearTimeout(mouseWheelTimeout);mouseWheelTimeout=setTimeout(function(){var delta=event.detail||-event.wheelDelta;if(delta>0){navigateNext();}else{navigatePrev();}},100);}function onWindowHashChange(event){readURL();}function linkify(){if(supports3DTransforms){var nodes=document.querySelectorAll('#reveal .slides section a:not(.image)');for(var i=0,len=nodes.length;i<len;i++){var node=nodes[i];if(node.textContent&&!node.querySelector('img')&&(!node.className||!node.classList.contains(node,'roll'))){node.classList.add('roll');node.innerHTML='<span data-title="'+node.text+'">'+node.innerHTML+'</span>';}};}}function activateOverview(){dom.wrapper.classList.add('overview');var horizontalSlides=Array.prototype.slice.call(document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR));for(var i=0,len1=horizontalSlides.length;i<len1;i++){var hslide=horizontalSlides[i],htransform='translateZ(-2500px) translate('+((i-indexh)*105)+'%, 0%)';hslide.setAttribute('data-index-h',i);hslide.style.display='block';hslide.style.WebkitTransform=htransform;hslide.style.MozTransform=htransform;hslide.style.msTransform=htransform;hslide.style.OTransform=htransform;hslide.style.transform=htransform;if(!hslide.classList.contains('stack')){hslide.addEventListener('click',onOverviewSlideClicked,true);}var verticalSlides=Array.prototype.slice.call(hslide.querySelectorAll('section'));for(var j=0,len2=verticalSlides.length;j<len2;j++){var vslide=verticalSlides[j],vtransform='translate(0%, '+((j-indexv)*105)+'%)';vslide.setAttribute('data-index-h',i);vslide.setAttribute('data-index-v',j);vslide.style.display='block';vslide.style.WebkitTransform=vtransform;vslide.style.MozTransform=vtransform;vslide.style.msTransform=vtransform;vslide.style.OTransform=vtransform;vslide.style.transform=vtransform;vslide.addEventListener('click',onOverviewSlideClicked,true);}}}function deactivateOverview(){dom.wrapper.classList.remove('overview');var slides=Array.prototype.slice.call(document.querySelectorAll('#reveal .slides section'));for(var i=0,len=slides.length;i<len;i++){var element=slides[i];element.style.WebkitTransform='';element.style.MozTransform='';element.style.msTransform='';element.style.OTransform='';element.style.transform='';element.removeEventListener('click',onOverviewSlideClicked);}slide();}function overviewIsActive(){return dom.wrapper.classList.contains('overview');}function onOverviewSlideClicked(event){if(overviewIsActive()){event.preventDefault();deactivateOverview();indexh=this.getAttribute('data-index-h');indexv=this.getAttribute('data-index-v');slide();}}function updateSlides(selector,index){var slides=Array.prototype.slice.call(document.querySelectorAll(selector)),slidesLength=slides.length;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;i<slidesLength;i++){var slide=slides[i];if(overviewIsActive()===false){var distance=Math.abs((index-i)%(slidesLength-3))||0;slide.style.display=distance>3?'none':'block';}slides[i].classList.remove('past');slides[i].classList.remove('present');slides[i].classList.remove('future');if(i<index){slides[i].classList.add('past');}else if(i>index){slides[i].classList.add('future');}if(slide.querySelector('section')){slides[i].classList.add('stack');}}slides[index].classList.add('present');var slideState=slides[index].getAttribute('data-state');if(slideState){state=state.concat(slideState.split(' '));}}else{index=0;}return index;}function slide(){var stateBefore=state.concat();state.length=0;indexh=updateSlides(HORIZONTAL_SLIDES_SELECTOR,indexh);indexv=updateSlides(VERTICAL_SLIDES_SELECTOR,indexv);stateLoop:for(var i=0,len=state.length;i<len;i++){for(var j=0;j<stateBefore.length;j++){if(stateBefore[j]===state[i]){stateBefore.splice(j,1);continue stateLoop;}}document.documentElement.classList.add(state[i]);dispatchEvent(state[i]);}while(stateBefore.length){document.documentElement.classList.remove(stateBefore.pop());}if(config.progress){dom.progressbar.style.width=(indexh/(document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR).length-1))*window.innerWidth+'px';}if(overviewIsActive()){activateOverview();}updateControls();clearTimeout(writeURLTimeout);writeURLTimeout=setTimeout(writeURL,1500);dispatchEvent('slidechanged',{'indexh':indexh,'indexv':indexv});}function updateControls(){var routes=availableRoutes();[dom.controlsLeft,dom.controlsRight,dom.controlsUp,dom.controlsDown].forEach(function(node){node.classList.remove('enabled');})if(routes.left)dom.controlsLeft.classList.add('enabled');if(routes.right)dom.controlsRight.classList.add('enabled');if(routes.up)dom.controlsUp.classList.add('enabled');if(routes.down)dom.controlsDown.classList.add('enabled');}function availableRoutes(){var horizontalSlides=document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR);var verticalSlides=document.querySelectorAll(VERTICAL_SLIDES_SELECTOR);return{left:indexh>0,right:indexh<horizontalSlides.length-1,up:indexv>0,down:indexv<verticalSlides.length-1};}function readURL(){var bits=window.location.hash.slice(2).split('/');indexh=parseInt(bits[0])||0;indexv=parseInt(bits[1])||0;navigateTo(indexh,indexv);}function writeURL(){if(config.history){var url='/';if(indexh>0||indexv>0)url+=indexh;if(indexv>0)url+='/'+indexv;window.location.hash=url;}}function dispatchEvent(type,properties){var event=document.createEvent("HTMLEvents",1,2);event.initEvent(type,true,true);extend(event,properties);dom.wrapper.dispatchEvent(event);}function nextFragment(){if(document.querySelector(VERTICAL_SLIDES_SELECTOR+'.present')){var verticalFragments=document.querySelectorAll(VERTICAL_SLIDES_SELECTOR+'.present .fragment:not(.visible)');if(verticalFragments.length){verticalFragments[0].classList.add('visible');return true;}}else{var horizontalFragments=document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR+'.present .fragment:not(.visible)');if(horizontalFragments.length){horizontalFragments[0].classList.add('visible');return true;}}return false;}function previousFragment(){if(document.querySelector(VERTICAL_SLIDES_SELECTOR+'.present')){var verticalFragments=document.querySelectorAll(VERTICAL_SLIDES_SELECTOR+'.present .fragment.visible');if(verticalFragments.length){verticalFragments[verticalFragments.length-1].classList.remove('visible');return true;}}else{var horizontalFragments=document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR+'.present .fragment.visible');if(horizontalFragments.length){horizontalFragments[horizontalFragments.length-1].classList.remove('visible');return true;}}return false;}function navigateTo(h,v){indexh=h===undefined?indexh:h;indexv=v===undefined?indexv:v;slide();}function navigateLeft(){if(overviewIsActive()||previousFragment()===false){indexh--;indexv=0;slide();}}function navigateRight(){if(overviewIsActive()||nextFragment()===false){indexh++;indexv=0;slide();}}function navigateUp(){if(overviewIsActive()||previousFragment()===false){indexv--;slide();}}function navigateDown(){if(overviewIsActive()||nextFragment()===false){indexv++;slide();}}function navigatePrev(){if(previousFragment()===false){if(availableRoutes().up){navigateUp();}else{var previousSlide=document.querySelector('#reveal .slides>section.past:nth-child('+indexh+')');if(previousSlide){indexv=(previousSlide.querySelectorAll('section').length+1)||0;indexh--;slide();}}}}function navigateNext(){if(nextFragment()===false){availableRoutes().down?navigateDown():navigateRight();}}function overviewToggle(){if(overviewIsActive()){deactivateOverview();}else{activateOverview();}}return{initialize:initialize,navigateTo:navigateTo,navigateLeft:navigateLeft,navigateRight:navigateRight,navigateUp:navigateUp,navigateDown:navigateDown,overviewToggle:overviewToggle,addEvents:addEvents,removeEvents:removeEvents,addEventListener:function(type,listener,useCapture){(dom.wrapper||document.querySelector('#reveal')).addEventListener(type,listener,useCapture);},removeEventListener:function(type,listener,useCapture){(dom.wrapper||document.querySelector('#reveal')).removeEventListener(type,listener,useCapture);}};})();
\ No newline at end of file + * reveal.js 1.3 + * http://lab.hakim.se/reveal-js + * MIT licensed + * + * Copyright (C) 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=0,c=0,H={controls:false,progress:false,history:false,loop:false,mouseWheel:true,rollingLinks:true,transition:"default",theme:"default"},U=[],d={},J=document.body.style.perspectiveProperty!==undefined||document.body.style.WebkitPerspective!==undefined||document.body.style.MozPerspective!==undefined||document.body.style.msPerspective!==undefined||document.body.style.OPerspective!==undefined,l=document.body.style.transformProperty!==undefined||document.body.style.WebkitTransform!==undefined||document.body.style.MozTransform!==undefined||document.body.style.msTransform!==undefined||document.body.style.OTransform!==undefined,v=0,y=0,P={startX:0,startY:0,startSpan:0,startCount:0,handled:false,threshold:40}; +function h(W){if(!l&&!J){document.body.setAttribute("class","no-transforms");return;}d.wrapper=document.querySelector("#reveal");d.progress=document.querySelector("#reveal .progress"); +d.progressbar=document.querySelector("#reveal .progress span");d.controls=document.querySelector("#reveal .controls");d.controlsLeft=document.querySelector("#reveal .controls .left"); +d.controlsRight=document.querySelector("#reveal .controls .right");d.controlsUp=document.querySelector("#reveal .controls .up");d.controlsDown=document.querySelector("#reveal .controls .down"); +A();q(H,W);if(J===false){H.transition="linear";}if(H.controls){d.controls.style.display="block";}if(H.progress){d.progress.style.display="block";}if(H.transition!=="default"){d.wrapper.classList.add(H.transition); +}if(H.theme!=="default"){d.wrapper.classList.add(H.theme);}if(H.mouseWheel){document.addEventListener("DOMMouseScroll",m,false);document.addEventListener("mousewheel",m,false); +}if(H.rollingLinks){E();}D();if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow="scroll";document.body.style.height="120%"; +window.addEventListener("load",Q,false);window.addEventListener("orientationchange",Q,false);}}function A(){document.addEventListener("keydown",T,false); +document.addEventListener("touchstart",w,false);document.addEventListener("touchmove",S,false);document.addEventListener("touchend",L,false);window.addEventListener("hashchange",t,false); +d.controlsLeft.addEventListener("click",n(x),false);d.controlsRight.addEventListener("click",n(i),false);d.controlsUp.addEventListener("click",n(r),false); +d.controlsDown.addEventListener("click",n(B),false);}function K(){document.removeEventListener("keydown",T,false);document.removeEventListener("touchstart",w,false); +document.removeEventListener("touchmove",S,false);document.removeEventListener("touchend",L,false);window.removeEventListener("hashchange",t,false);d.controlsLeft.removeEventListener("click",n(x),false); +d.controlsRight.removeEventListener("click",n(i),false);d.controlsUp.removeEventListener("click",n(r),false);d.controlsDown.removeEventListener("click",n(B),false); 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