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(max-width:600px){.reveal.show-notes{max-height:60%;max-height:60vh}.reveal.show-notes .speaker-notes{top:100%;height:66.66667%;height:40vh}.reveal .speaker-notes{font-size:14px}}.zoomed .reveal *,.zoomed .reveal :after,.zoomed .reveal :before{-webkit-backface-visibility:visible!important;backface-visibility:visible!important}.zoomed .reveal .controls,.zoomed .reveal .progress{opacity:0}.zoomed .reveal .roll span{background:0 0}.zoomed .reveal .roll span:after{visibility:hidden} \ No newline at end of file diff --git a/css/reveal.scss b/css/reveal.scss index a452af76..f8803b4b 100644 --- a/css/reveal.scss +++ b/css/reveal.scss @@ -1420,6 +1420,9 @@ $controlsArrowAngleActive: 36deg; * OVERLAY FOR LINK PREVIEWS AND HELP *********************************************/ +$overlayHeaderHeight: 40px; +$overlayHeaderPadding: 5px; + .reveal > .overlay { position: absolute; top: 0; @@ -1428,14 +1431,8 @@ $controlsArrowAngleActive: 36deg; height: 100%; z-index: 1000; background: rgba( 0, 0, 0, 0.9 ); - opacity: 0; - visibility: hidden; transition: all 0.3s ease; } - .reveal > .overlay.visible { - opacity: 1; - visibility: visible; - } .reveal > .overlay .spinner { position: absolute; @@ -1458,14 +1455,14 @@ $controlsArrowAngleActive: 36deg; left: 0; top: 0; width: 100%; - height: 40px; + padding: $overlayHeaderPadding; z-index: 2; - border-bottom: 1px solid #222; + box-sizing: border-box; } .reveal > .overlay header a { display: inline-block; - width: 40px; - height: 40px; + width: $overlayHeaderHeight; + height: $overlayHeaderHeight; line-height: 36px; padding: 0 10px; float: right; @@ -1495,7 +1492,7 @@ $controlsArrowAngleActive: 36deg; .reveal > .overlay .viewport { position: absolute; display: flex; - top: 40px; + top: $overlayHeaderHeight + $overlayHeaderPadding*2; right: 0; bottom: 0; left: 0; diff --git a/js/reveal.js b/js/reveal.js index fe287da3..725957a7 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -592,7 +592,7 @@ */ function loadScript( url, callback ) { - let script = document.createElement( 'script' ); + const script = document.createElement( 'script' ); script.type = 'text/javascript'; script.async = false; script.defer = false; @@ -618,14 +618,14 @@ // Kill event listeners script.onload = script.onreadystatechange = script.onerror = null; - callback( new Error( 'Failed loading script: ' + script.src + '\n' + err) ); + callback( new Error( 'Failed loading script: ' + script.src + '\n' + err ) ); }; } // Append the script at the end of - let head = document.querySelector( 'head' ); + const head = document.querySelector( 'head' ); head.insertBefore( script, head.lastChild ); } @@ -661,7 +661,7 @@ // Notify listeners that the presentation is ready but use a 1ms // timeout to ensure it's not fired synchronously after #initialize() - setTimeout( function() { + setTimeout( () => { // Enable transitions now that we're loaded dom.slides.classList.remove( 'no-transition' ); @@ -723,10 +723,10 @@ // Arrow controls dom.controls = createSingletonNode( dom.wrapper, 'aside', 'controls', - '' + - '' + - '' + - '' ); + ` + + + ` ); // Slide number dom.slideNumber = createSingletonNode( dom.wrapper, 'div', 'slide-number', '' ); @@ -766,7 +766,7 @@ */ function createStatusDiv() { - var statusDiv = document.getElementById( 'aria-status-div' ); + let statusDiv = document.getElementById( 'aria-status-div' ); if( !statusDiv ) { statusDiv = document.createElement( 'div' ); statusDiv.style.position = 'absolute'; @@ -790,7 +790,7 @@ */ function getStatusText( node ) { - var text = ''; + let text = ''; // Text node if( node.nodeType === 3 ) { @@ -799,11 +799,11 @@ // Element node else if( node.nodeType === 1 ) { - var isAriaHidden = node.getAttribute( 'aria-hidden' ); - var isDisplayHidden = window.getComputedStyle( node )['display'] === 'none'; + let isAriaHidden = node.getAttribute( 'aria-hidden' ); + let isDisplayHidden = window.getComputedStyle( node )['display'] === 'none'; if( isAriaHidden !== 'true' && !isDisplayHidden ) { - toArray( node.childNodes ).forEach( function( child ) { + toArray( node.childNodes ).forEach( child => { text += getStatusText( child ); } ); @@ -811,7 +811,7 @@ } - return text; + return text.trim(); } @@ -995,7 +995,7 @@ */ function setupScrollPrevention() { - setInterval( function() { + setInterval( () => { if( dom.wrapper.scrollTop !== 0 || dom.wrapper.scrollLeft !== 0 ) { dom.wrapper.scrollTop = 0; dom.wrapper.scrollLeft = 0; @@ -1016,26 +1016,24 @@ * * @return {HTMLElement} */ - function createSingletonNode( container, tagname, classname, innerHTML ) { + function createSingletonNode( container, tagname, classname, innerHTML='' ) { // Find all nodes matching the description - var nodes = container.querySelectorAll( '.' + classname ); + let nodes = container.querySelectorAll( '.' + classname ); // Check all matches to find one which is a direct child of // the specified container - for( var i = 0; i < nodes.length; i++ ) { - var testNode = nodes[i]; + for( let i = 0; i < nodes.length; i++ ) { + let testNode = nodes[i]; if( testNode.parentNode === container ) { return testNode; } } // If no node was found, create it now - var node = document.createElement( tagname ); + let node = document.createElement( tagname ); node.className = classname; - if( typeof innerHTML === 'string' ) { - node.innerHTML = innerHTML; - } + node.innerHTML = innerHTML; container.appendChild( node ); return node; @@ -1049,19 +1047,19 @@ */ function createBackgrounds() { - var printMode = isPrintingPDF(); + let printMode = isPrintingPDF(); // Clear prior backgrounds dom.background.innerHTML = ''; dom.background.classList.add( 'no-transition' ); // Iterate over all horizontal slides - toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( slideh ) { + toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( slideh => { - var backgroundStack = createBackground( slideh, dom.background ); + let backgroundStack = createBackground( slideh, dom.background ); // Iterate over all vertical slides - toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) { + toArray( slideh.querySelectorAll( 'section' ) ).forEach( slidev => { createBackground( slidev, backgroundStack ); @@ -1083,7 +1081,7 @@ // needed for proper transitions to be set on the element via CSS. To remove // annoying background slide-in effect when the presentation starts, apply // these properties after short time delay - setTimeout( function() { + setTimeout( () => { dom.wrapper.classList.add( 'has-parallax-background' ); }, 1 ); @@ -1107,13 +1105,12 @@ */ function createBackground( slide, container ) { - // Main slide background element - var element = document.createElement( 'div' ); + let element = document.createElement( 'div' ); element.className = 'slide-background ' + slide.className.replace( /present|past|future/, '' ); // Inner background element that wraps images/videos/iframes - var contentElement = document.createElement( 'div' ); + let contentElement = document.createElement( 'div' ); contentElement.className = 'slide-background-content'; element.appendChild( contentElement ); @@ -1137,7 +1134,7 @@ */ function syncBackground( slide ) { - var element = slide.slideBackgroundElement, + let element = slide.slideBackgroundElement, contentElement = slide.slideBackgroundContentElement; // Reset the prior background state in case this is not the @@ -1158,7 +1155,7 @@ contentElement.style.opacity = ''; contentElement.innerHTML = ''; - var data = { + let data = { background: slide.getAttribute( 'data-background' ), backgroundSize: slide.getAttribute( 'data-background-size' ), backgroundImage: slide.getAttribute( 'data-background-image' ), @@ -1213,18 +1210,18 @@ // If this slide has a background color, we add a class that // signals if it is light or dark. If the slide has no background // color, no class will be added - var contrastColor = data.backgroundColor; + let contrastColor = data.backgroundColor; // If no bg color was found, check the computed background if( !contrastColor ) { - var computedBackgroundStyle = window.getComputedStyle( element ); + let computedBackgroundStyle = window.getComputedStyle( element ); if( computedBackgroundStyle && computedBackgroundStyle.backgroundColor ) { contrastColor = computedBackgroundStyle.backgroundColor; } } if( contrastColor ) { - var rgb = colorToRgb( contrastColor ); + let rgb = colorToRgb( contrastColor ); // Ignore fully transparent backgrounds. Some browsers return // rgba(0,0,0,0) when reading the computed background color of @@ -1254,8 +1251,8 @@ function setupPostMessage() { if( config.postMessage ) { - window.addEventListener( 'message', function ( event ) { - var data = event.data; + window.addEventListener( 'message', event => { + const data = event.data; // Make sure we're dealing with JSON if( typeof data === 'string' && data.charAt( 0 ) === '{' && data.charAt( data.length - 1 ) === '}' ) { @@ -1292,7 +1289,7 @@ */ function configure( options ) { - var oldTransition = config.transition; + const oldTransition = config.transition; // New config options may be passed when this method // is invoked through the API after initialization @@ -1303,7 +1300,7 @@ // finishes if( loaded === false ) return; - var numberOfSlides = dom.wrapper.querySelectorAll( SLIDES_SELECTOR ).length; + const numberOfSlides = dom.wrapper.querySelectorAll( SLIDES_SELECTOR ).length; // Remove the previously configured transition class dom.wrapper.classList.remove( oldTransition ); @@ -1397,7 +1394,7 @@ // Generate auto-slide controls if needed if( numberOfSlides > 1 && config.autoSlide && config.autoSlideStoppable ) { - autoSlidePlayer = new Playback( dom.wrapper, function() { + autoSlidePlayer = new Playback( dom.wrapper, () => { return Math.min( Math.max( ( Date.now() - autoSlideStartTime ) / autoSlide, 0 ), 1 ); } ); @@ -1407,14 +1404,14 @@ // When fragments are turned off they should be visible if( config.fragments === false ) { - toArray( dom.slides.querySelectorAll( '.fragment' ) ).forEach( function( element ) { + toArray( dom.slides.querySelectorAll( '.fragment' ) ).forEach( element => { element.classList.add( 'visible' ); element.classList.remove( 'current-fragment' ); } ); } // Slide numbers - var slideNumberDisplay = 'none'; + let slideNumberDisplay = 'none'; if( config.slideNumber && !isPrintingPDF() ) { if( config.showSlideNumber === 'all' ) { slideNumberDisplay = 'block'; @@ -1506,7 +1503,7 @@ // Listen to both touch and click events, in case the device // supports both - var pointerEvents = [ 'touchstart', 'click' ]; + let pointerEvents = [ 'touchstart', 'click' ]; // Only support touch for Android, fixes double navigations in // stock browser @@ -1753,7 +1750,7 @@ */ function injectStyleSheet( value ) { - var tag = document.createElement( 'style' ); + let tag = document.createElement( 'style' ); tag.type = 'text/css'; if( tag.styleSheet ) { tag.styleSheet.cssText = value; @@ -1778,14 +1775,14 @@ */ function closestParent( target, selector ) { - var parent = target.parentNode; + let parent = target.parentNode; while( parent ) { // There's some overhead doing this each time, we don't // want to rewrite the element prototype but should still // be enough to feature detect once at startup... - var matchesMethod = parent.matches || parent.matchesSelector || parent.msMatchesSelector; + let matchesMethod = parent.matches || parent.matchesSelector || parent.msMatchesSelector; // If we find a match, we're all set if( matchesMethod && matchesMethod.call( parent, selector ) ) { @@ -1818,7 +1815,7 @@ */ function colorToRgb( color ) { - var hex3 = color.match( /^#([0-9a-f]{3})$/i ); + let hex3 = color.match( /^#([0-9a-f]{3})$/i ); if( hex3 && hex3[1] ) { hex3 = hex3[1]; return { @@ -1828,7 +1825,7 @@ }; } - var hex6 = color.match( /^#([0-9a-f]{6})$/i ); + let hex6 = color.match( /^#([0-9a-f]{6})$/i ); if( hex6 && hex6[1] ) { hex6 = hex6[1]; return { @@ -1838,7 +1835,7 @@ }; } - var rgb = color.match( /^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i ); + let rgb = color.match( /^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i ); if( rgb ) { return { r: parseInt( rgb[1], 10 ), @@ -1847,7 +1844,7 @@ }; } - var rgba = color.match( /^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i ); + let 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 ), @@ -1888,12 +1885,10 @@ * @param {HTMLElement} element * @param {number} [height] */ - function getRemainingHeight( element, height ) { - - height = height || 0; + function getRemainingHeight( element, height = 0 ) { if( element ) { - var newHeight, oldHeight = element.style.height; + let newHeight, oldHeight = element.style.height; // Change the .stretch element height to 0 in order find the height of all // the other elements @@ -1933,7 +1928,7 @@ */ function dispatchEvent( type, args ) { - var event = document.createEvent( 'HTMLEvents', 1, 2 ); + let event = document.createEvent( 'HTMLEvents', 1, 2 ); event.initEvent( type, true, true ); extend( event, args ); dom.wrapper.dispatchEvent( event ); @@ -1950,7 +1945,7 @@ function dispatchPostMessage( type, data ) { if( config.postMessageEvents && window.parent !== window.self ) { - var message = { + let message = { namespace: 'reveal', eventName: type, state: getState() @@ -1968,11 +1963,9 @@ * * @param {string} [selector=a] - selector for anchors */ - function enablePreviewLinks( selector ) { + function enablePreviewLinks( selector = 'a' ) { - var anchors = toArray( document.querySelectorAll( selector ? selector : 'a' ) ); - - anchors.forEach( function( element ) { + toArray( document.querySelectorAll( selector ) ).forEach( element => { if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) { element.addEventListener( 'click', onPreviewLinkClicked, false ); } @@ -1983,11 +1976,9 @@ /** * Unbind preview frame links. */ - function disablePreviewLinks( selector ) { + function disablePreviewLinks( selector = 'a' ) { - var anchors = toArray( document.querySelectorAll( selector ? selector : 'a' ) ); - - anchors.forEach( function( element ) { + toArray( document.querySelectorAll( selector ) ).forEach( element => { if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) { element.removeEventListener( 'click', onPreviewLinkClicked, false ); } @@ -2022,23 +2013,19 @@ `; - dom.overlay.querySelector( 'iframe' ).addEventListener( 'load', function( event ) { + dom.overlay.querySelector( 'iframe' ).addEventListener( 'load', event => { dom.overlay.classList.add( 'loaded' ); }, false ); - dom.overlay.querySelector( '.close' ).addEventListener( 'click', function( event ) { + dom.overlay.querySelector( '.close' ).addEventListener( 'click', event => { closeOverlay(); event.preventDefault(); }, false ); - dom.overlay.querySelector( '.external' ).addEventListener( 'click', function( event ) { + dom.overlay.querySelector( '.external' ).addEventListener( 'click', event => { closeOverlay(); }, false ); - setTimeout( function() { - dom.overlay.classList.add( 'visible' ); - }, 1 ); - } /** @@ -2077,7 +2064,7 @@ dom.overlay.classList.add( 'overlay-help' ); dom.wrapper.appendChild( dom.overlay ); - var html = '

Keyboard Shortcuts


'; + let html = '

Keyboard Shortcuts


'; html += ''; for( var key in keyboardShortcuts ) { @@ -2107,10 +2094,6 @@ event.preventDefault(); }, false ); - requestAnimationFrame( function() { - dom.overlay.classList.add( 'visible' ); - } ); - } } @@ -2147,9 +2130,9 @@ document.documentElement.style.setProperty( '--vh', ( window.innerHeight * 0.01 ) + 'px' ); } - var size = getComputedSlideSize(); + const size = getComputedSlideSize(); - var oldScale = scale; + const oldScale = scale; // Layout the contents of the slides layoutSlideContents( config.width, config.height ); @@ -2202,17 +2185,17 @@ } // Select all slides, vertical and horizontal - var slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ); + const slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ); for( var i = 0, len = slides.length; i < len; i++ ) { - var slide = slides[ i ]; + const slide = slides[ i ]; // Don't bother updating invisible slides if( slide.style.display === 'none' ) { continue; } - if( ( config.center || slide.classList.contains( 'center' ) ) ) { + if( config.center || slide.classList.contains( 'center' ) ) { // Vertical stacks are not centred since their section // children will be if( slide.classList.contains( 'stack' ) ) { @@ -2258,17 +2241,17 @@ function layoutSlideContents( width, height ) { // Handle sizing of elements with the 'stretch' class - toArray( dom.slides.querySelectorAll( 'section > .stretch' ) ).forEach( function( element ) { + toArray( dom.slides.querySelectorAll( 'section > .stretch' ) ).forEach( element => { // Determine how much vertical space we can use var remainingHeight = getRemainingHeight( element, height ); // Consider the aspect ratio of media elements if( /(img|video)/gi.test( element.nodeName ) ) { - var nw = element.naturalWidth || element.videoWidth, - nh = element.naturalHeight || element.videoHeight; + const nw = element.naturalWidth || element.videoWidth, + nh = element.naturalHeight || element.videoHeight; - var es = Math.min( width / nw, remainingHeight / nh ); + const es = Math.min( width / nw, remainingHeight / nh ); element.style.width = ( nw * es ) + 'px'; element.style.height = ( nh * es ) + 'px'; @@ -2293,7 +2276,7 @@ */ function getComputedSlideSize( presentationWidth, presentationHeight ) { - var size = { + const size = { // Slide size width: config.width, height: config.height, @@ -2348,7 +2331,7 @@ if( typeof stack === 'object' && typeof stack.setAttribute === 'function' && stack.classList.contains( 'stack' ) ) { // Prefer manually defined start-indexv - var attributeName = stack.hasAttribute( 'data-start-indexv' ) ? 'data-start-indexv' : 'data-previous-indexv'; + const attributeName = stack.hasAttribute( 'data-start-indexv' ) ? 'data-start-indexv' : 'data-previous-indexv'; return parseInt( stack.getAttribute( attributeName ) || 0, 10 ); } @@ -2378,15 +2361,15 @@ dom.slides.appendChild( dom.background ); // Clicking on an overview slide navigates to it - toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) { + toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { if( !slide.classList.contains( 'stack' ) ) { slide.addEventListener( 'click', onOverviewSlideClicked, true ); } } ); // Calculate slide sizes - var margin = 70; - var slideSize = getComputedSlideSize(); + const margin = 70; + const slideSize = getComputedSlideSize(); overviewSlideWidth = slideSize.width + margin; overviewSlideHeight = slideSize.height + margin; @@ -2419,13 +2402,13 @@ function layoutOverview() { // Layout slides - toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( hslide, h ) { + toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( ( hslide, h ) => { hslide.setAttribute( 'data-index-h', h ); transformElement( hslide, 'translate3d(' + ( h * overviewSlideWidth ) + 'px, 0, 0)' ); if( hslide.classList.contains( 'stack' ) ) { - toArray( hslide.querySelectorAll( 'section' ) ).forEach( function( vslide, v ) { + toArray( hslide.querySelectorAll( 'section' ) ).forEach( ( vslide, v ) => { vslide.setAttribute( 'data-index-h', h ); vslide.setAttribute( 'data-index-v', v ); @@ -2436,10 +2419,10 @@ } ); // Layout slide backgrounds - toArray( dom.background.childNodes ).forEach( function( hbackground, h ) { + toArray( dom.background.childNodes ).forEach( ( hbackground, h ) => { transformElement( hbackground, 'translate3d(' + ( h * overviewSlideWidth ) + 'px, 0, 0)' ); - toArray( hbackground.querySelectorAll( '.slide-background' ) ).forEach( function( vbackground, v ) { + toArray( hbackground.querySelectorAll( '.slide-background' ) ).forEach( ( vbackground, v ) => { transformElement( vbackground, 'translate3d(0, ' + ( v * overviewSlideHeight ) + 'px, 0)' ); } ); } ); @@ -2483,7 +2466,7 @@ // moving from slide to slide dom.wrapper.classList.add( 'overview-deactivating' ); - setTimeout( function () { + setTimeout( () => { dom.wrapper.classList.remove( 'overview-deactivating' ); }, 1 ); @@ -2491,14 +2474,14 @@ dom.wrapper.appendChild( dom.background ); // Clean up changes made to slides - toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) { + toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { transformElement( slide, '' ); slide.removeEventListener( 'click', onOverviewSlideClicked, true ); } ); // Clean up changes made to backgrounds - toArray( dom.background.querySelectorAll( '.slide-background' ) ).forEach( function( background ) { + toArray( dom.background.querySelectorAll( '.slide-background' ) ).forEach( background => { transformElement( background, '' ); } ); @@ -2557,16 +2540,16 @@ */ function locationHash( slide ) { - var url = '/'; + let url = '/'; // Attempt to create a named link based on the slide's ID - var s = slide || currentSlide; - var id = s ? s.getAttribute( 'id' ) : null; + let s = slide || currentSlide; + let id = s ? s.getAttribute( 'id' ) : null; if( id ) { id = encodeURIComponent( id ); } - var index = getIndices( slide ); + let index = getIndices( slide ); if( !config.fragmentInURL ) { index.f = undefined; } @@ -2578,7 +2561,7 @@ } // Otherwise use the /h/v index else { - var hashIndexBase = config.hashOneBasedIndex ? 1 : 0; + let hashIndexBase = config.hashOneBasedIndex ? 1 : 0; if( index.h > 0 || index.v > 0 || index.f !== undefined ) url += index.h + hashIndexBase; if( index.v > 0 || index.f !== undefined ) url += '/' + (index.v + hashIndexBase ); if( index.f !== undefined ) url += '/' + index.f; @@ -2596,10 +2579,7 @@ * orientation of * @return {Boolean} */ - function isVerticalSlide( slide ) { - - // Prefer slide argument, otherwise use current slide - slide = slide ? slide : currentSlide; + function isVerticalSlide( slide = currentSlide ) { return slide && slide.parentNode && !!slide.parentNode.nodeName.match( /section/i ); @@ -2613,10 +2593,10 @@ */ function enterFullscreen() { - var element = document.documentElement; + let element = document.documentElement; // Check which implementation is available - var requestMethod = element.requestFullscreen || + let requestMethod = element.requestFullscreen || element.webkitRequestFullscreen || element.webkitRequestFullScreen || element.mozRequestFullScreen || @@ -2661,7 +2641,7 @@ function pause() { if( config.pause ) { - var wasPaused = dom.wrapper.classList.contains( 'paused' ); + const wasPaused = dom.wrapper.classList.contains( 'paused' ); cancelAutoSlide(); dom.wrapper.classList.add( 'paused' ); @@ -2678,7 +2658,7 @@ */ function resume() { - var wasPaused = dom.wrapper.classList.contains( 'paused' ); + const wasPaused = dom.wrapper.classList.contains( 'paused' ); dom.wrapper.classList.remove( 'paused' ); cueAutoSlide(); @@ -2761,7 +2741,7 @@ previousSlide = currentSlide; // Query all horizontal slides in the deck - var horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ); + const horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ); // Abort if there are no slides if( horizontalSlides.length === 0 ) return; @@ -2779,12 +2759,12 @@ } // Remember the state before this slide - var stateBefore = state.concat(); + const stateBefore = state.concat(); // Reset the state array state.length = 0; - var indexhBefore = indexh || 0, + let indexhBefore = indexh || 0, indexvBefore = indexv || 0; // Activate and transition to the new slide @@ -2803,7 +2783,7 @@ // Find the current horizontal slide and any possible vertical slides // within it - var currentHorizontalSlide = horizontalSlides[ indexh ], + let currentHorizontalSlide = horizontalSlides[ indexh ], currentVerticalSlides = currentHorizontalSlide.querySelectorAll( 'section' ); // Store references to the previous and current slides @@ -2815,7 +2795,7 @@ } // Dispatch an event if the slide changed - var slideChanged = ( indexh !== indexhBefore || indexv !== indexvBefore ); + let slideChanged = ( indexh !== indexhBefore || indexv !== indexvBefore ); if (!slideChanged) { // Ensure that the previous slide is never the same as the current previousSlide = null; @@ -2829,26 +2809,21 @@ previousSlide.setAttribute( 'aria-hidden', 'true' ); // Reset all slides upon navigate to home - // Issue: #285 - if ( dom.wrapper.querySelector( HOME_SLIDE_SELECTOR ).classList.contains( 'present' ) ) { + if( Reveal.isFirstSlide() ) { // Launch async task - setTimeout( function () { - var slides = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.stack') ), i; - for( i in slides ) { - if( slides[i] ) { - // Reset stack - setPreviousVerticalIndex( slides[i], 0 ); - } - } + setTimeout( () => { + getVerticalStacks().forEach( slide => { + setPreviousVerticalIndex( slide, 0 ); + } ); }, 0 ); } } // Apply the new state - stateLoop: for( var i = 0, len = state.length; i < len; i++ ) { + stateLoop: for( let i = 0, len = state.length; i < len; i++ ) { // Check if this state existed on the previous slide. If it // did, we will avoid adding it repeatedly - for( var j = 0; j < stateBefore.length; j++ ) { + for( let j = 0; j < stateBefore.length; j++ ) { if( stateBefore[j] === state[i] ) { stateBefore.splice( j, 1 ); continue stateLoop; @@ -2906,7 +2881,7 @@ if( previousSlide.hasAttribute( 'data-auto-animate' ) && currentSlide.hasAttribute( 'data-auto-animate' ) ) { dom.slides.classList.add( 'disable-slide-transitions' ); - setTimeout( function() { + setTimeout( () => { dom.slides.classList.remove( 'disable-slide-transitions' ); }, 0 ); @@ -4976,6 +4951,15 @@ } + /** + * Returns all vertical stacks (each stack can contain multiple slides). + */ + function getVerticalStacks() { + + return toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.stack') ); + + } + /** * Returns true if there are at least two horizontal slides. */ @@ -6569,7 +6553,7 @@ // Returns true if we're currently on the first slide isFirstSlide: function() { - return ( indexh === 0 && indexv === 0 ); + return indexh === 0 && indexv === 0; }, // Returns true if we're currently on the last slide
KEYACTION