lazy-load support for audio #793
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3 changed files with 7 additions and 13 deletions
14
js/reveal.js
14
js/reveal.js
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@ -2173,25 +2173,25 @@ var Reveal = (function(){
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function loadSlide( slide ) {
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// Media elements with data-src attributes
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toArray( slide.querySelectorAll( 'img[data-src], video[data-src]' ) ).forEach( function( element ) {
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toArray( slide.querySelectorAll( 'img[data-src], video[data-src], audio[data-src]' ) ).forEach( function( element ) {
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element.setAttribute( 'src', element.getAttribute( 'data-src' ) );
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element.removeAttribute( 'data-src' );
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} );
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// Video elements with multiple <source>s
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toArray( slide.querySelectorAll( 'video' ) ).forEach( function( video ) {
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// Media elements with multiple <source>s
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toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( function( media ) {
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var sources = 0;
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toArray( slide.querySelectorAll( 'source[data-src]' ) ).forEach( function( source ) {
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toArray( media.querySelectorAll( 'source[data-src]' ) ).forEach( function( source ) {
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source.setAttribute( 'src', source.getAttribute( 'data-src' ) );
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source.removeAttribute( 'data-src' );
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sources += 1;
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} );
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// If we rewrote sources for this video, we need to manually
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// tell it to load from its new origin
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// If we rewrote sources for this video/audio element, we need
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// to manually tell it to load from its new origin
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if( sources > 0 ) {
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video.load();
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media.load();
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}
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} );
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@ -22,10 +22,6 @@
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<section>
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<h1>1</h1>
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<img data-src="fake-url.png">
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<video>
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<source data-src="fake-url.mp4" />
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<source data-src="fake-url.webm" />
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</video>
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</section>
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<section>
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@ -456,8 +456,6 @@ Reveal.addEventListener( 'ready', function() {
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test( 'img with data-src', function() {
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strictEqual( document.querySelectorAll( '.reveal section img[src]' ).length, 1, 'Image source has been set' );
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strictEqual( document.querySelectorAll( '.reveal section video source[src]' ).length, 2, 'Video sources have been set' );
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});
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