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- var Reveal = (function(){
-
- var HORIZONTAL_SLIDES_SELECTOR = '.reveal .slides>section',
- VERTICAL_SLIDES_SELECTOR = '.reveal .slides>section.present>section',
- IS_TOUCH_DEVICE = !!( 'ontouchstart' in window ),
-
- config = {
-
- controls: true,
-
- progress: true,
-
- history: false,
-
- keyboard: true,
-
- loop: false,
-
-
- autoSlide: 0,
-
- mouseWheel: true,
-
- rollingLinks: true,
-
- theme: 'default',
-
- transition: 'default'
- },
-
- indexh = 0,
- indexv = 0,
-
- previousSlide,
- currentSlide,
-
-
-
- state = [],
-
- dom = {},
-
- supports3DTransforms = document.body.style['WebkitPerspective'] !== undefined ||
- document.body.style['MozPerspective'] !== undefined ||
- document.body.style['msPerspective'] !== undefined ||
- document.body.style['OPerspective'] !== undefined ||
- document.body.style['perspective'] !== undefined,
-
- supports2DTransforms = document.body.style['WebkitTransform'] !== undefined ||
- document.body.style['MozTransform'] !== undefined ||
- document.body.style['msTransform'] !== undefined ||
- document.body.style['OTransform'] !== undefined ||
- document.body.style['transform'] !== undefined,
-
- supportsClassList = !!document.body.classList;
-
-
- mouseWheelTimeout = 0,
-
- autoSlideTimeout = 0,
-
- writeURLTimeout = 0,
-
- touch = {
- startX: 0,
- startY: 0,
- startSpan: 0,
- startCount: 0,
- handled: false,
- threshold: 40
- };
-
-
-
- function initialize( options ) {
-
- if( ( !supports2DTransforms && !supports3DTransforms ) || !supportsClassList ) {
- 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' );
-
- if ( config.controls ) {
- 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' );
- }
- addEventListeners();
-
- extend( config, options );
-
- configure();
-
- readURL();
-
- cueAutoSlide();
-
- 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 configure() {
- if( supports3DTransforms === false ) {
-
- config.transition = 'linear';
- }
- if( config.controls && dom.controls ) {
- dom.controls.style.display = 'block';
- }
- if( config.progress && dom.progress ) {
- dom.progress.style.display = 'block';
- }
- if( config.transition !== 'default' ) {
- dom.wrapper.classList.add( config.transition );
- }
- if( config.theme !== 'default' ) {
- document.documentElement.classList.add( 'theme-' + config.theme );
- }
- if( config.mouseWheel ) {
- document.addEventListener( 'DOMMouseScroll', onDocumentMouseScroll, false );
- document.addEventListener( 'mousewheel', onDocumentMouseScroll, false );
- }
- if( config.rollingLinks ) {
-
- linkify();
- }
- }
- function addEventListeners() {
- document.addEventListener( 'touchstart', onDocumentTouchStart, false );
- document.addEventListener( 'touchmove', onDocumentTouchMove, false );
- document.addEventListener( 'touchend', onDocumentTouchEnd, false );
- window.addEventListener( 'hashchange', onWindowHashChange, false );
- if( config.keyboard ) {
- document.addEventListener( 'keydown', onDocumentKeyDown, false );
- }
- if ( config.controls && dom.controls ) {
- 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 removeEventListeners() {
- 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 );
-
- if ( config.controls && dom.controls ) {
- 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 distanceBetween( a, b ) {
- var dx = a.x - b.x,
- dy = a.y - b.y;
- return Math.sqrt( dx*dx + dy*dy );
- }
-
- 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 ) {
- toggleOverview();
-
- event.preventDefault();
- }
-
-
- cueAutoSlide();
- }
-
- function onDocumentTouchStart( event ) {
- touch.startX = event.touches[0].clientX;
- touch.startY = event.touches[0].clientY;
- touch.startCount = event.touches.length;
-
-
- if( event.touches.length === 2 ) {
- touch.startSpan = distanceBetween( {
- x: event.touches[1].clientX,
- y: event.touches[1].clientY
- }, {
- x: touch.startX,
- y: touch.startY
- } );
- }
- }
-
-
- function onDocumentTouchMove( event ) {
-
- if( !touch.handled ) {
- var currentX = event.touches[0].clientX;
- var currentY = event.touches[0].clientY;
-
-
- if( event.touches.length === 2 && touch.startCount === 2 ) {
-
- 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.handled = true;
- if( currentSpan < touch.startSpan ) {
- activateOverview();
- }
- else {
- deactivateOverview();
- }
- }
- }
-
- 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();
- }
- }
-
- function onDocumentTouchEnd( event ) {
- touch.handled = false;
- }
-
- 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( h, v ) {
-
- previousSlide = currentSlide;
-
- var stateBefore = state.concat();
-
- state.length = 0;
- var indexhBefore = indexh,
- indexvBefore = indexv;
-
- indexh = updateSlides( HORIZONTAL_SLIDES_SELECTOR, h === undefined ? indexh : h );
- indexv = updateSlides( VERTICAL_SLIDES_SELECTOR, v === undefined ? indexv : v );
-
- 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.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 );
-
- var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
-
-
- var currentHorizontalSlide = horizontalSlides[ indexh ],
- currentVerticalSlides = currentHorizontalSlide.querySelectorAll( 'section' );
-
- currentSlide = currentVerticalSlides[ indexv ] || currentHorizontalSlide;
-
- if( indexh !== indexhBefore || indexv !== indexvBefore ) {
- dispatchEvent( 'slidechanged', {
- 'indexh': indexh,
- 'indexv': indexv,
- 'previousSlide': previousSlide,
- 'currentSlide': currentSlide
- } );
- }
- else {
-
- previousSlide = null;
- }
-
-
-
- if( previousSlide ) {
- previousSlide.classList.remove( 'present' );
- }
- }
-
- function updateControls() {
- if ( !config.controls || !dom.controls ) {
- return;
- }
-
- 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('/');
-
- var h = parseInt( bits[0] ) || 0 ;
- var v = parseInt( bits[1] ) || 0 ;
- navigateTo( h, v );
- }
-
-
- 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' );
-
- dispatchEvent( 'fragmentshown', { fragment: verticalFragments[0] } );
- return true;
- }
- }
-
- else {
- var horizontalFragments = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.present .fragment:not(.visible)' );
- if( horizontalFragments.length ) {
- horizontalFragments[0].classList.add( 'visible' );
-
- dispatchEvent( 'fragmentshown', { fragment: horizontalFragments[0] } );
- 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' );
-
- dispatchEvent( 'fragmenthidden', { fragment: verticalFragments[ verticalFragments.length - 1 ] } );
- return true;
- }
- }
-
- else {
- var horizontalFragments = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.present .fragment.visible' );
- if( horizontalFragments.length ) {
- horizontalFragments[ horizontalFragments.length - 1 ].classList.remove( 'visible' );
-
- dispatchEvent( 'fragmenthidden', { fragment: horizontalFragments[ horizontalFragments.length - 1 ] } );
- return true;
- }
- }
-
- return false;
- }
- function cueAutoSlide() {
- clearTimeout( autoSlideTimeout );
-
- if( config.autoSlide ) {
- autoSlideTimeout = setTimeout( navigateNext, config.autoSlide );
- }
- }
-
-
- function navigateTo( h, v ) {
- slide( h, v );
- }
-
- function navigateLeft() {
-
- if( overviewIsActive() || previousFragment() === false ) {
- slide( indexh - 1, 0 );
- }
- }
- function navigateRight() {
-
- if( overviewIsActive() || nextFragment() === false ) {
- slide( indexh + 1, 0 );
- }
- }
- function navigateUp() {
-
- if( overviewIsActive() || previousFragment() === false ) {
- slide( indexh, indexv - 1 );
- }
- }
- function navigateDown() {
-
- if( overviewIsActive() || nextFragment() === false ) {
- slide( indexh, indexv + 1 );
- }
- }
-
- 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();
- }
-
-
- cueAutoSlide();
- }
-
- function toggleOverview() {
- if( overviewIsActive() ) {
- deactivateOverview();
- }
- else {
- activateOverview();
- }
- }
-
-
- return {
- initialize: initialize,
- navigateTo: navigateTo,
- navigateLeft: navigateLeft,
- navigateRight: navigateRight,
- navigateUp: navigateUp,
- navigateDown: navigateDown,
- navigatePrev: navigatePrev,
- navigateNext: navigateNext,
- toggleOverview: toggleOverview,
-
- addEventListeners: addEventListeners,
- removeEventListeners: removeEventListeners,
-
- getIndices: function() {
- return {
- h: indexh,
- v: indexv
- };
- },
-
- getPreviousSlide: function() {
- return previousSlide
- },
-
- getCurrentSlide: function() {
- return currentSlide
- },
-
- getQueryHash: function() {
- var query = {};
- location.search.replace( /[A-Z0-9]+?=(\w*)/gi, function(a) {
- query[ a.split( '=' ).shift() ] = a.split( '=' ).pop();
- } );
- return query;
- },
-
- 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 );
- }
- };
-
- })();
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