video background playback
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2 changed files with 20 additions and 6 deletions
20
js/reveal.js
20
js/reveal.js
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@ -2001,7 +2001,7 @@ var Reveal = (function(){
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}
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if( includeAll || h === indexh ) {
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toArray( backgroundh.childNodes ).forEach( function( backgroundv, v ) {
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toArray( backgroundh.querySelectorAll( 'section' ) ).forEach( function( backgroundv, v ) {
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if( v < indexv ) {
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backgroundv.className = 'slide-background past';
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@ -2021,9 +2021,22 @@ var Reveal = (function(){
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} );
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// Don't transition between identical backgrounds. This
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// prevents unwanted flicker.
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// Stop any currently playing video background
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if( previousBackground ) {
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var previousVideo = previousBackground.querySelector( 'video' );
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if( previousVideo ) previousVideo.pause();
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}
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if( currentBackground ) {
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// Start video playback
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var currentVideo = currentBackground.querySelector( 'video' );
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if( currentVideo ) currentVideo.play();
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// Don't transition between identical backgrounds. This
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// prevents unwanted flicker.
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var previousBackgroundHash = previousBackground ? previousBackground.getAttribute( 'data-background-hash' ) : null;
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var currentBackgroundHash = currentBackground.getAttribute( 'data-background-hash' );
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if( currentBackgroundHash && currentBackgroundHash === previousBackgroundHash && currentBackground !== previousBackground ) {
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@ -2031,6 +2044,7 @@ var Reveal = (function(){
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}
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previousBackground = currentBackground;
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}
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// Allow the first background to apply without transition
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6
js/reveal.min.js
vendored
6
js/reveal.min.js
vendored
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