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Code Issues Releases Wiki Activity

add support for responsively activating reader mode via

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Hakim El Hattab
2023-10-06 09:14:23 +02:00
parent 899a45dff6
commit ab52d334df
8 changed files with 146 additions and 6 deletions
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dist/reveal.esm.js vendored
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examples/reader-mode.html Normal file
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@@ -0,0 +1,118 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>reveal.js - Reader Mode</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="../dist/reset.css">
<link rel="stylesheet" href="../dist/reveal.css">
<link rel="stylesheet" href="../dist/theme/black.css" id="theme">
<link rel="stylesheet" href="../plugin/highlight/monokai.css">
</head>
<body>
<div class="reveal">
<div class="slides">
<section><h1>Reader Mode</h1></section>
<section data-auto-animate data-auto-animate-easing="cubic-bezier(0.770, 0.000, 0.175, 1.000)">
<h2>Auto-Animate</h2>
<p>Automatically animate matching elements across slides with <a href="https://revealjs.com/auto-animate/">Auto-Animate</a>.</p>
<div class="r-hstack justify-center">
<div data-id="box1" style="background: #999; width: 50px; height: 50px; margin: 10px; border-radius: 5px;"></div>
<div data-id="box2" style="background: #999; width: 50px; height: 50px; margin: 10px; border-radius: 5px;"></div>
<div data-id="box3" style="background: #999; width: 50px; height: 50px; margin: 10px; border-radius: 5px;"></div>
</div>
</section>
<section data-auto-animate data-auto-animate-easing="cubic-bezier(0.770, 0.000, 0.175, 1.000)">
<div class="r-hstack justify-center">
<div data-id="box1" data-auto-animate-delay="0" style="background: cyan; width: 150px; height: 100px; margin: 10px;"></div>
<div data-id="box2" data-auto-animate-delay="0.1" style="background: magenta; width: 150px; height: 100px; margin: 10px;"></div>
<div data-id="box3" data-auto-animate-delay="0.2" style="background: yellow; width: 150px; height: 100px; margin: 10px;"></div>
</div>
<h2 style="margin-top: 20px;">Auto-Animate</h2>
</section>
<section data-auto-animate data-auto-animate-easing="cubic-bezier(0.770, 0.000, 0.175, 1.000)">
<div class="r-stack">
<div data-id="box1" style="background: cyan; width: 300px; height: 300px; border-radius: 200px;"></div>
<div data-id="box2" style="background: magenta; width: 200px; height: 200px; border-radius: 200px;"></div>
<div data-id="box3" style="background: yellow; width: 100px; height: 100px; border-radius: 200px;"></div>
</div>
<h2 style="margin-top: 20px;">Auto-Animate</h2>
</section>
<section data-background="indigo">
<h2>Scroll triggers</h2>
<ul>
<li class="fragment">Fragment one</li>
<li class="fragment">Fragment two</li>
<li class="fragment">Fragment three</li>
</ul>
</section>
<section data-background-gradient="linear-gradient(to bottom, #283b95, #17b2c3)">
<h2>Gradient Backgrounds</h2>
</section>
<section data-auto-animate>
<h2 data-id="code-title">Scroll triggered code highlights</h2>
<pre data-id="code-animation"><code class="hljs javascript" data-trim data-line-numbers="|4,8-11|17|22-24"><script type="text/template">
import React, { useState } from 'react';
function Example() {
const [count, setCount] = useState(0);
return (
<div>
<p>You clicked {count} times</p>
<button onClick={() => setCount(count + 1)}>
Click me
</button>
</div>
);
}
function SecondExample() {
const [count, setCount] = useState(0);
return (
<div>
<p>You clicked {count} times</p>
<button onClick={() => setCount(count + 1)}>
Click me
</button>
</div>
);
}
</script></code></pre>
</section>
<section data-background="https://static.slid.es/reveal/image-placeholder.png">
<h2>Image Backgrounds</h2>
<pre><code class="hljs html">&lt;section data-background="image.png"&gt;</code></pre>
</section>
<section data-background-video="https://s3.amazonaws.com/static.slid.es/site/homepage/v1/homepage-video-editor.mp4,https://s3.amazonaws.com/static.slid.es/site/homepage/v1/homepage-video-editor.webm">
<h2>Video background</h2>
</section>
<section><h2>The end</h2></section>
</div>
</div>
<script src="../dist/reveal.js"></script>
<script src="../plugin/notes/notes.js"></script>
<script src="../plugin/markdown/markdown.js"></script>
<script src="../plugin/highlight/highlight.js"></script>
<script>
Reveal.initialize({
view: 'reader',
plugins: [ RevealMarkdown, RevealHighlight, RevealNotes ]
});
</script>
</body>
</html>

4
js/config.js
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@@ -276,6 +276,10 @@ export default {
// Only applies to presentations in reader mode. // Only applies to presentations in reader mode.
readerScrollSnap: 'proximity', readerScrollSnap: 'proximity',
// Responsively activate the reader mode when we reach the specified
// width (in pixels)
readerActivationWidth: null,
// The maximum number of pages a single slide can expand onto when printing // The maximum number of pages a single slide can expand onto when printing
// to PDF, unlimited by default // to PDF, unlimited by default
pdfMaxPagesPerSlide: Number.POSITIVE_INFINITY, pdfMaxPagesPerSlide: Number.POSITIVE_INFINITY,

10
js/controllers/reader.js
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@@ -14,6 +14,8 @@ export default class Reader {
this.active = false; this.active = false;
this.activatedCallbacks = []; this.activatedCallbacks = [];
this.onScroll = this.onScroll.bind( this );
} }
/** /**
@@ -32,7 +34,7 @@ export default class Reader {
const slides = queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ); const slides = queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR );
viewportElement.classList.add( 'loading-scroll-mode', 'reveal-reader' ); viewportElement.classList.add( 'loading-scroll-mode', 'reveal-reader' );
viewportElement.addEventListener( 'scroll', this.onScroll.bind( this ) ); viewportElement.addEventListener( 'scroll', this.onScroll );
let presentationBackground; let presentationBackground;
if( viewportElement ) { if( viewportElement ) {
@@ -113,7 +115,11 @@ export default class Reader {
this.active = false; this.active = false;
this.Reveal.getViewportElement().classList.remove( 'reveal-reader' ); const viewportElement = this.Reveal.getViewportElement();
viewportElement.removeEventListener( 'scroll', this.onScroll );
viewportElement.classList.remove( 'reveal-reader' );
this.Reveal.getSlidesElement().innerHTML = this.slideHTMLBeforeActivation; this.Reveal.getSlidesElement().innerHTML = this.slideHTMLBeforeActivation;
this.Reveal.sync(); this.Reveal.sync();

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js/reveal.js
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@@ -999,6 +999,18 @@ export default function( revealElement, options ) {
} }
}); });
} }
// Responsively turn on the reader mode if there is an activation
// width configured. Ignore if we're configured to always be in
// reader mode.
if( typeof config.readerActivationWidth === 'number' && config.view !== 'reader' ) {
if( size.presentationWidth < config.readerActivationWidth ) {
if( !reader.isActive() ) reader.activate();
}
else {
if( reader.isActive() ) reader.deactivate();
}
}
} }
dom.viewport.style.setProperty( '--slide-scale', scale ); dom.viewport.style.setProperty( '--slide-scale', scale );