shuffle now applies to vertical slides as well

edit
Hakim El Hattab 2020-08-17 14:42:27 +02:00
parent 2bfe705e6a
commit 3a99a7b70a
4 changed files with 19 additions and 8 deletions

2
dist/reveal.esm.js vendored

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2
dist/reveal.js vendored

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@ -16,8 +16,9 @@
<body> <body>
<div class="reveal"> <div class="reveal">
<div class="slides"> <div class="slides">
<section>Slide 1</section> <section><section>Slide 1</section>
<section>Slide 2</section> <section>Slide 2</section>
<section>Slide 3</section></section>
</div> </div>
</div> </div>

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