expose layout api method (closes #305), consistent spacing across all functions in core JS, remove unused each() method
This commit is contained in:
hakimel
parent
305e70d99b
commit
09bf962d32
2 changed files with 115 additions and 20 deletions
115
js/reveal.js
115
js/reveal.js
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@ -88,6 +88,7 @@ var Reveal = (function(){
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'OPerspective' in document.body.style ||
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'perspective' in document.body.style,
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// Detect support for CSS 2D transforms
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supports2DTransforms = 'WebkitTransform' in document.body.style ||
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'MozTransform' in document.body.style ||
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'msTransform' in document.body.style ||
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@ -123,6 +124,7 @@ var Reveal = (function(){
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* Starts up the presentation if the client is capable.
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*/
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function initialize( options ) {
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if( ( !supports2DTransforms && !supports3DTransforms ) ) {
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document.body.setAttribute( 'class', 'no-transforms' );
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@ -151,6 +153,7 @@ var Reveal = (function(){
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* not found, it is created.
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*/
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function setupDOM() {
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// Cache references to key DOM elements
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dom.theme = document.querySelector( '#theme' );
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dom.wrapper = document.querySelector( '.reveal' );
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@ -204,12 +207,14 @@ var Reveal = (function(){
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dom.controlsPrev = toArray( document.querySelectorAll( '.navigate-prev' ) );
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dom.controlsNext = toArray( document.querySelectorAll( '.navigate-next' ) );
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}
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}
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/**
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* Hides the address bar if we're on a mobile device.
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*/
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function hideAddressBar() {
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if( navigator.userAgent.match( /(iphone|ipod)/i ) ) {
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// Give the page some scrollable overflow
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document.documentElement.style.overflow = 'scroll';
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@ -219,6 +224,7 @@ var Reveal = (function(){
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window.addEventListener( 'load', removeAddressBar, false );
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window.addEventListener( 'orientationchange', removeAddressBar, false );
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}
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}
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/**
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@ -229,6 +235,7 @@ var Reveal = (function(){
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* will load after reveal.js has been started up.
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*/
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function load() {
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var scripts = [],
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scriptsAsync = [];
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@ -270,6 +277,7 @@ var Reveal = (function(){
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else {
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proceed();
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}
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}
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/**
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@ -277,6 +285,7 @@ var Reveal = (function(){
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* to the current URL deeplink if there is one.
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*/
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function start() {
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// Make sure we've got all the DOM elements we need
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setupDOM();
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@ -305,12 +314,14 @@ var Reveal = (function(){
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'currentSlide': currentSlide
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} );
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}, 1 );
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}
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/**
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* Applies the configuration settings from the config object.
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*/
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function configure() {
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if( supports3DTransforms === false ) {
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config.transition = 'linear';
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}
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@ -356,12 +367,14 @@ var Reveal = (function(){
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dom.theme.setAttribute( 'href', themeURL );
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}
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}
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}
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/**
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* Binds all event listeners.
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*/
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function addEventListeners() {
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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document.addEventListener( 'touchend', onDocumentTouchEnd, false );
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@ -385,12 +398,14 @@ var Reveal = (function(){
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dom.controlsPrev.forEach( function( el ) { el.addEventListener( actionEvent, preventAndForward( navigatePrev ), false ); } );
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dom.controlsNext.forEach( function( el ) { el.addEventListener( actionEvent, preventAndForward( navigateNext ), false ); } );
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}
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}
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/**
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* Unbinds all event listeners.
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*/
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function removeEventListeners() {
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document.removeEventListener( 'keydown', onDocumentKeyDown, false );
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document.removeEventListener( 'touchstart', onDocumentTouchStart, false );
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document.removeEventListener( 'touchmove', onDocumentTouchMove, false );
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@ -411,6 +426,7 @@ var Reveal = (function(){
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dom.controlsPrev.forEach( function( el ) { el.removeEventListener( actionEvent, preventAndForward( navigatePrev ), false ); } );
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dom.controlsNext.forEach( function( el ) { el.removeEventListener( actionEvent, preventAndForward( navigateNext ), false ); } );
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}
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}
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/**
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@ -418,22 +434,20 @@ var Reveal = (function(){
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* If there's a conflict, object b takes precedence.
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*/
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function extend( a, b ) {
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for( var i in b ) {
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a[ i ] = b[ i ];
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}
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}
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/**
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* Converts the target object to an array.
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*/
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function toArray( o ) {
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return Array.prototype.slice.call( o );
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}
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function each( targets, method, args ) {
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targets.forEach( function( el ) {
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el[method].apply( el, args );
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} );
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return Array.prototype.slice.call( o );
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}
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/**
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@ -444,10 +458,12 @@ var Reveal = (function(){
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* @param {Object} b point with x/y properties
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*/
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function distanceBetween( a, b ) {
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var dx = a.x - b.x,
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dy = a.y - b.y;
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return Math.sqrt( dx*dx + dy*dy );
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}
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/**
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@ -458,10 +474,12 @@ var Reveal = (function(){
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* after the wrapper has been executed
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*/
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function preventAndForward( delegate ) {
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return function( event ) {
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event.preventDefault();
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delegate.call( null, event );
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};
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}
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/**
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@ -469,9 +487,11 @@ var Reveal = (function(){
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* more vertical space ftw.
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*/
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function removeAddressBar() {
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setTimeout( function() {
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window.scrollTo( 0, 1 );
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}, 0 );
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}
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/**
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@ -479,16 +499,19 @@ var Reveal = (function(){
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* reveal DOM element.
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*/
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function dispatchEvent( type, properties ) {
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var event = document.createEvent( "HTMLEvents", 1, 2 );
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event.initEvent( type, true, true );
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extend( event, properties );
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dom.wrapper.dispatchEvent( event );
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}
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/**
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* Wrap all links in 3D goodness.
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*/
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function linkify() {
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if( supports3DTransforms && !( 'msPerspective' in document.body.style ) ) {
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var nodes = document.querySelectorAll( SLIDES_SELECTOR + ' a:not(.image)' );
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@ -506,6 +529,7 @@ var Reveal = (function(){
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}
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}
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}
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}
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/**
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@ -525,7 +549,7 @@ var Reveal = (function(){
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for( var i = 0, len = slides.length; i < len; i++ ) {
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var slide = slides[ i ];
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// Don't bother update invisible slides
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// Don't bother updating invisible slides
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if( slide.style.display === 'none' ) {
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continue;
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}
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@ -553,9 +577,11 @@ var Reveal = (function(){
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* @param {int} v Index to memorize
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*/
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function setPreviousVerticalIndex( stack, v ) {
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if( stack ) {
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stack.setAttribute( 'data-previous-indexv', v || 0 );
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}
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}
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/**
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@ -566,11 +592,13 @@ var Reveal = (function(){
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* @param {HTMLElement} stack The vertical stack element
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*/
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function getPreviousVerticalIndex( stack ) {
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if( stack && stack.classList.contains( 'stack' ) ) {
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return parseInt( stack.getAttribute( 'data-previous-indexv' ) || 0, 10 );
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}
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return 0;
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}
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/**
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@ -593,7 +621,7 @@ var Reveal = (function(){
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// Not the pretties solution, but need to let the overview
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// class apply first so that slides are measured accurately
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// before we can positon them
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// before we can position them
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activateOverviewTimeout = setTimeout( function(){
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var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
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@ -704,12 +732,14 @@ var Reveal = (function(){
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* overview is open, false means it's closed.
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*/
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function toggleOverview( override ) {
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if( typeof override === 'boolean' ) {
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override ? activateOverview() : deactivateOverview();
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}
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else {
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isOverviewActive() ? deactivateOverview() : activateOverview();
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}
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}
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/**
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@ -719,7 +749,9 @@ var Reveal = (function(){
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* false otherwise
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*/
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function isOverviewActive() {
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return dom.wrapper.classList.contains( 'overview' );
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}
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/**
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@ -729,6 +761,7 @@ var Reveal = (function(){
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* @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode
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*/
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function enterFullscreen() {
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var element = document.body;
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// Check which implementation is available
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@ -740,6 +773,7 @@ var Reveal = (function(){
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if( requestMethod ) {
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requestMethod.apply( element );
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}
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}
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/**
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@ -747,33 +781,41 @@ var Reveal = (function(){
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* black.
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*/
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function pause() {
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dom.wrapper.classList.add( 'paused' );
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}
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/**
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* Exits from the paused mode.
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*/
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function resume() {
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dom.wrapper.classList.remove( 'paused' );
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}
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/**
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* Toggles the paused mode on and off.
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*/
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function togglePause() {
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if( isPaused() ) {
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resume();
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}
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else {
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pause();
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}
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}
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/**
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* Checks if we are currently in the paused mode.
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*/
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function isPaused() {
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return dom.wrapper.classList.contains( 'paused' );
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}
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/**
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@ -787,6 +829,7 @@ var Reveal = (function(){
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* target slide to activate
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*/
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function slide( h, v, f ) {
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// Remember where we were at before
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previousSlide = currentSlide;
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@ -837,7 +880,7 @@ var Reveal = (function(){
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dispatchEvent( state[i] );
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}
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// Clean up the remaints of the previous state
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// Clean up the remains of the previous state
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while( stateBefore.length ) {
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document.documentElement.classList.remove( stateBefore.pop() );
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}
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@ -912,6 +955,7 @@ var Reveal = (function(){
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updateControls();
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updateProgress();
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}
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/**
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@ -928,6 +972,7 @@ var Reveal = (function(){
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* bounds.
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*/
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function updateSlides( selector, index ) {
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// Select all slides and convert the NodeList result to
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// an array
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var slides = toArray( document.querySelectorAll( selector ) ),
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@ -1014,6 +1059,7 @@ var Reveal = (function(){
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* Updates the progress bar to reflect the current slide.
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*/
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function updateProgress() {
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// Update progress if enabled
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if( config.progress && dom.progress ) {
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@ -1055,12 +1101,14 @@ var Reveal = (function(){
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dom.progressbar.style.width = ( pastCount / ( totalCount - 1 ) ) * window.innerWidth + 'px';
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}
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}
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/**
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* Updates the state of all control/navigation arrows.
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*/
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function updateControls() {
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if ( config.controls && dom.controls ) {
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var routes = availableRoutes();
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@ -1085,6 +1133,7 @@ var Reveal = (function(){
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if( routes.right || routes.down ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'enabled' ); } );
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}
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}
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/**
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@ -1093,6 +1142,7 @@ var Reveal = (function(){
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* @return {Object} containing four booleans: left/right/up/down
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*/
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function availableRoutes() {
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var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ),
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verticalSlides = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR );
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@ -1102,12 +1152,14 @@ var Reveal = (function(){
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up: indexv > 0,
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down: indexv < verticalSlides.length - 1
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};
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}
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/**
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* Reads the current URL (hash) and navigates accordingly.
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*/
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function readURL() {
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var hash = window.location.hash;
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// Attempt to parse the hash as either an index or name
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@ -1137,6 +1189,7 @@ var Reveal = (function(){
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slide( h, v );
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}
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}
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/**
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@ -1147,6 +1200,7 @@ var Reveal = (function(){
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* writing the hash
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*/
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function writeURL( delay ) {
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if( config.history ) {
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// Make sure there's never more than one timeout running
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@ -1172,6 +1226,7 @@ var Reveal = (function(){
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window.location.hash = url;
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}
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}
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}
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/**
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@ -1185,6 +1240,7 @@ var Reveal = (function(){
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* @return {Object} { h: <int>, v: <int> }
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*/
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function getIndices( slide ) {
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// By default, return the current indices
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var h = indexh,
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v = indexv;
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@ -1207,6 +1263,7 @@ var Reveal = (function(){
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}
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return { h: h, v: v };
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}
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/**
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@ -1216,6 +1273,7 @@ var Reveal = (function(){
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* false otherwise
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*/
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function nextFragment() {
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// Vertical slides:
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if( document.querySelector( VERTICAL_SLIDES_SELECTOR + '.present' ) ) {
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var verticalFragments = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR + '.present .fragment:not(.visible)' );
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@ -1240,6 +1298,7 @@ var Reveal = (function(){
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}
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return false;
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}
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/**
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@ -1249,6 +1308,7 @@ var Reveal = (function(){
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* false otherwise
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*/
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function previousFragment() {
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// Vertical slides:
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if( document.querySelector( VERTICAL_SLIDES_SELECTOR + '.present' ) ) {
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var verticalFragments = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR + '.present .fragment.visible' );
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@ -1273,46 +1333,57 @@ var Reveal = (function(){
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}
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return false;
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}
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/**
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* Cues a new automated slide if enabled in the config.
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*/
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function cueAutoSlide() {
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clearTimeout( autoSlideTimeout );
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// Cue the next auto-slide if enabled
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if( autoSlide ) {
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autoSlideTimeout = setTimeout( navigateNext, autoSlide );
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}
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}
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function navigateLeft() {
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// Prioritize hiding fragments
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if( availableRoutes().left && isOverviewActive() || previousFragment() === false ) {
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slide( indexh - 1 );
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}
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}
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function navigateRight() {
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// Prioritize revealing fragments
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if( availableRoutes().right && isOverviewActive() || nextFragment() === false ) {
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slide( indexh + 1 );
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}
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}
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function navigateUp() {
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// Prioritize hiding fragments
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if( availableRoutes().up && isOverviewActive() || previousFragment() === false ) {
|
||||
slide( indexh, indexv - 1 );
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
function navigateDown() {
|
||||
|
||||
// Prioritize revealing fragments
|
||||
if( availableRoutes().down && isOverviewActive() || nextFragment() === false ) {
|
||||
slide( indexh, indexv + 1 );
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1322,6 +1393,7 @@ var Reveal = (function(){
|
|||
* 3) Previous horizontal slide
|
||||
*/
|
||||
function navigatePrev() {
|
||||
|
||||
// Prioritize revealing fragments
|
||||
if( previousFragment() === false ) {
|
||||
if( availableRoutes().up ) {
|
||||
|
|
@ -1338,12 +1410,14 @@ var Reveal = (function(){
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Same as #navigatePrev() but navigates forwards.
|
||||
*/
|
||||
function navigateNext() {
|
||||
|
||||
// Prioritize revealing fragments
|
||||
if( nextFragment() === false ) {
|
||||
availableRoutes().down ? navigateDown() : navigateRight();
|
||||
|
|
@ -1352,6 +1426,7 @@ var Reveal = (function(){
|
|||
// If auto-sliding is enabled we need to cue up
|
||||
// another timeout
|
||||
cueAutoSlide();
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1366,6 +1441,7 @@ var Reveal = (function(){
|
|||
* @param {Object} event
|
||||
*/
|
||||
function onDocumentKeyDown( event ) {
|
||||
|
||||
// Check if there's a focused element that could be using
|
||||
// the keyboard
|
||||
var activeElement = document.activeElement;
|
||||
|
|
@ -1428,6 +1504,7 @@ var Reveal = (function(){
|
|||
* enables support for swipe and pinch gestures.
|
||||
*/
|
||||
function onDocumentTouchStart( event ) {
|
||||
|
||||
touch.startX = event.touches[0].clientX;
|
||||
touch.startY = event.touches[0].clientY;
|
||||
touch.startCount = event.touches.length;
|
||||
|
|
@ -1443,12 +1520,14 @@ var Reveal = (function(){
|
|||
y: touch.startY
|
||||
} );
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Handler for the document level 'touchmove' event.
|
||||
*/
|
||||
function onDocumentTouchMove( event ) {
|
||||
|
||||
// Each touch should only trigger one action
|
||||
if( !touch.handled ) {
|
||||
var currentX = event.touches[0].clientX;
|
||||
|
|
@ -1515,20 +1594,24 @@ var Reveal = (function(){
|
|||
else if( navigator.userAgent.match( /android/gi ) ) {
|
||||
event.preventDefault();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Handler for the document level 'touchend' event.
|
||||
*/
|
||||
function onDocumentTouchEnd( event ) {
|
||||
|
||||
touch.handled = false;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles mouse wheel scrolling, throttled to avoid skipping
|
||||
* multiple slides.
|
||||
*/
|
||||
function onDocumentMouseScroll( event ){
|
||||
function onDocumentMouseScroll( event ) {
|
||||
|
||||
clearTimeout( mouseWheelTimeout );
|
||||
|
||||
mouseWheelTimeout = setTimeout( function() {
|
||||
|
|
@ -1540,6 +1623,7 @@ var Reveal = (function(){
|
|||
navigatePrev();
|
||||
}
|
||||
}, 100 );
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1549,30 +1633,37 @@ var Reveal = (function(){
|
|||
* ( clickX / presentationWidth ) * numberOfSlides
|
||||
*/
|
||||
function onProgressClick( event ) {
|
||||
|
||||
var slidesTotal = toArray( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).length;
|
||||
var slideIndex = Math.floor( ( event.clientX / dom.wrapper.offsetWidth ) * slidesTotal );
|
||||
|
||||
slide( slideIndex );
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Handler for the window level 'hashchange' event.
|
||||
*/
|
||||
function onWindowHashChange( event ) {
|
||||
|
||||
readURL();
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Handler for the window level 'resize' event.
|
||||
*/
|
||||
function onWindowResize( event ) {
|
||||
|
||||
layout();
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Invoked when a slide is and we're in the overview.
|
||||
*/
|
||||
function onOverviewSlideClicked( event ) {
|
||||
|
||||
// TODO There's a bug here where the event listeners are not
|
||||
// removed after deactivating the overview.
|
||||
if( isOverviewActive() ) {
|
||||
|
|
@ -1593,6 +1684,7 @@ var Reveal = (function(){
|
|||
slide( h, v );
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1624,6 +1716,9 @@ var Reveal = (function(){
|
|||
navigatePrev: navigatePrev,
|
||||
navigateNext: navigateNext,
|
||||
|
||||
// Forces an update in slide layout
|
||||
layout: layout,
|
||||
|
||||
// Toggles the overview mode on/off
|
||||
toggleOverview: toggleOverview,
|
||||
|
||||
|
|
|
|||
2
js/reveal.min.js
vendored
2
js/reveal.min.js
vendored
File diff suppressed because one or more lines are too long
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Reference in a new issue