support for optional background property overrides (#453)
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3 changed files with 20 additions and 8 deletions
21
js/reveal.js
21
js/reveal.js
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@ -258,19 +258,30 @@ var Reveal = (function(){
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// given slide
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function _createBackground( slide, container ) {
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var background = slide.getAttribute( 'data-background' );
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var data = {
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background: slide.getAttribute( 'data-background' ),
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backgroundSize: slide.getAttribute( 'data-background-size' ),
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backgroundRepeat: slide.getAttribute( 'data-background-repeat' ),
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backgroundPosition: slide.getAttribute( 'data-background-position' )
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};
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var element = document.createElement( 'div' );
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if( background ) {
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if( data.background ) {
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// Auto-wrap image urls in url(...)
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if( /\.(png|jpg|jpeg|gif|bmp|)$/gi.test( background ) ) {
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element.style.backgroundImage = 'url('+ background +')';
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if( /\.(png|jpg|jpeg|gif|bmp|)$/gi.test( data.background ) ) {
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element.style.backgroundImage = 'url('+ data.background +')';
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}
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else {
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element.style.background = background;
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element.style.background = data.background;
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}
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}
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// Additional and optional background properties
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if( data.backgroundSize ) element.style.backgroundSize = data.backgroundSize;
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if( data.backgroundRepeat ) element.style.backgroundRepeat = data.backgroundRepeat;
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if( data.backgroundPosition ) element.style.backgroundPosition = data.backgroundPosition;
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container.appendChild( element );
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return element;
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4
js/reveal.min.js
vendored
4
js/reveal.min.js
vendored
File diff suppressed because one or more lines are too long
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@ -54,8 +54,9 @@
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<h2>Background image</h2>
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</section>
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<section data-background="assets/image2.png">
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<section data-background="assets/image2.png" data-background-size="100px" data-background-repeat="repeat">
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<h2>Background image</h2>
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<code>data-background-size="100px" data-background-repeat="repeat"</code>
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</section>
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</div>
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