diff --git a/js/reveal.js b/js/reveal.js index ef4add9..86eb825 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -1448,6 +1448,33 @@ var Reveal = (function(){ } + /** + * Toggles the auto slide mode on and off. + * + * @param {Boolean} override Optional flag which sets the desired state. + * True means autoplay starts, false means it stops. + */ + + function toggleAutoSlide( override ) { + if( typeof override === 'boolean' ) { + override ? resumeAutoSlide() : pauseAutoSlide(); + } + + else { + autoSlidePaused ? resumeAutoSlide() : pauseAutoSlide(); + } + + } + + /** + * Checks if the auto slide mode is currently on. + */ + function isSliding() { + + return !autoSlidePaused; + + } + /** * Steps from the current point in the presentation to the * slide which matches the specified horizontal and vertical @@ -2473,14 +2500,26 @@ var Reveal = (function(){ if( currentSlide ) { + var fragmentAutoSlide = null; + // it is assumed that any given data-autoslide value (for each of the current fragments) can be chosen + toArray( Reveal.getCurrentSlide().querySelectorAll( '.current-fragment' ) ).forEach( function( el ) { + if( el.hasAttribute( 'data-autoslide' ) ) { + fragmentAutoSlide = el.getAttribute( 'data-autoslide' ); + } + } ); + var parentAutoSlide = currentSlide.parentNode ? currentSlide.parentNode.getAttribute( 'data-autoslide' ) : null; var slideAutoSlide = currentSlide.getAttribute( 'data-autoslide' ); // Pick value in the following priority order: - // 1. Current slide's data-autoslide - // 2. Parent slide's data-autoslide - // 3. Global autoSlide setting - if( slideAutoSlide ) { + // 1. Current fragment's data-autoslide + // 2. Current slide's data-autoslide + // 3. Parent slide's data-autoslide + // 4. Global autoSlide setting + if( fragmentAutoSlide ) { + autoSlide = parseInt( fragmentAutoSlide, 10 ); + } + else if( slideAutoSlide ) { autoSlide = parseInt( slideAutoSlide, 10 ); } else if( parentAutoSlide ) { @@ -2533,6 +2572,7 @@ var Reveal = (function(){ function pauseAutoSlide() { autoSlidePaused = true; + dispatchEvent( 'autoslidepaused' ); clearTimeout( autoSlideTimeout ); if( autoSlidePlayer ) { @@ -2544,6 +2584,7 @@ var Reveal = (function(){ function resumeAutoSlide() { autoSlidePaused = false; + dispatchEvent( 'autoslideresumed' ); cueAutoSlide(); } @@ -2661,6 +2702,8 @@ var Reveal = (function(){ */ function onDocumentKeyDown( event ) { + // store auto slide value to be able to toggle auto sliding + var currentAutoSlideValue = autoSlidePaused; onUserInput( event ); // Check if there's a focused element that could be using @@ -2737,6 +2780,8 @@ var Reveal = (function(){ case 66: case 190: case 191: togglePause(); break; // f case 70: enterFullscreen(); break; + // a + case 65: if ( config.autoSlideStoppable ) toggleAutoSlide( currentAutoSlideValue ); break; default: triggered = false; } @@ -3289,9 +3334,13 @@ var Reveal = (function(){ // Toggles the "black screen" mode on/off togglePause: togglePause, + // Toggles the auto slide mode on/off + toggleAutoSlide: toggleAutoSlide, + // State checks isOverview: isOverview, isPaused: isPaused, + isSliding: isSliding, // Adds or removes all internal event listeners (such as keyboard) addEventListeners: addEventListeners,