shuffle now applies to vertical slides as well
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@ -16,8 +16,9 @@
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<body>
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<div class="reveal">
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<div class="slides">
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<section>Slide 1</section>
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<section><section>Slide 1</section>
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<section>Slide 2</section>
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<section>Slide 3</section></section>
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</div>
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</div>
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20
js/reveal.js
20
js/reveal.js
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@ -1467,13 +1467,23 @@ export default function( revealElement, options ) {
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/**
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* Randomly shuffles all slides in the deck.
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*/
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function shuffle() {
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function shuffle( slides = getHorizontalSlides() ) {
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getHorizontalSlides().forEach( ( slide, i, slides ) => {
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slides.forEach( ( slide, i ) => {
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// Insert this slide next to another random slide. This may
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// cause the slide to insert before itself but that's fine.
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dom.slides.insertBefore( slide, slides[ Math.floor( Math.random() * slides.length ) ] );
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// Insert the slide next to a randomly picked sibling slide
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// slide. This may cause the slide to insert before itself,
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// but that's not an issue.
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let beforeSlide = slides[ Math.floor( Math.random() * slides.length ) ];
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if( beforeSlide.parentNode === slide.parentNode ) {
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slide.parentNode.insertBefore( slide, beforeSlide );
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}
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// Randomize the order of vertical slides (if there are any)
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let verticalSlides = slide.querySelectorAll( 'section' );
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if( verticalSlides.length ) {
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shuffle( verticalSlides );
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}
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} );
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