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+<!doctype html>
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+<html lang="en">
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+
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+ <head>
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+ <meta charset="utf-8">
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+
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+ <title>reveal.js - Test Reader Mode</title>
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+
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+ <link rel="stylesheet" href="../dist/reveal.css">
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+ <link rel="stylesheet" href="../node_modules/qunit/qunit/qunit.css">
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+ <script src="../node_modules/qunit/qunit/qunit.js"></script>
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+ </head>
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+
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+ <body style="overflow: auto;">
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+
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+ <div id="qunit"></div>
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+ <div id="qunit-fixture"></div>
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+
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+ <div class="reveal" style="opacity: 0; pointer-events: none;">
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+
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+ <div class="slides">
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+
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+ <section>
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+ <h1>slide 1</h1>
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+ </section>
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+
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+ <section>
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+ <h1>slide 2</h1>
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+ </section>
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+
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+ <section>
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+ <h1>slide 3</h1>
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+ <p class="fragment">fragment 1</p>
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+ <p class="fragment">fragment 2</p>
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+ <p class="fragment">fragment 3</p>
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+ </section>
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+
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+ <section>
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+ <h1>slide 4</h1>
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+ </section>
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+
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+ </div>
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+
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+ </div>
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+
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+ <script src="../dist/reveal.js"></script>
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+ <script>
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+
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+ QUnit.config.testTimeout = 30000;
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+ QUnit.config.reorder = false;
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+
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+ function getScrollHeight() {
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+ return Reveal.getViewportElement().scrollHeight;
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+ }
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+
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+ function getViewportHeight() {
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+ return Reveal.getViewportElement().offsetHeight;
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+ }
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+
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+ Reveal.initialize({ view: 'reader' }).then( async () => {
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+
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+ QUnit.module( 'Reader Mode' );
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+
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+ QUnit.test( 'Activates', assert => {
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+ assert.ok( getScrollHeight() > getViewportHeight(), 'Is overflowing' );
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+ });
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+
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+ QUnit.test( 'Can be toggled via API', assert => {
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+ Reveal.toggleReaderMode( false );
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+ assert.ok( getScrollHeight() <= getViewportHeight(), 'Is not overflowing' );
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+ Reveal.toggleReaderMode( true );
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+ assert.ok( getScrollHeight() > getViewportHeight(), 'Is overflowing' );
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+ });
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+
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+ QUnit.test( 'Changes present slide when scrolling', assert => {
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+ assert.timeout( 200 );
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+ assert.expect( 2 );
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+
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+ const slides = document.querySelectorAll( '.reveal .slides section' );
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+
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+ assert.ok( slides[0].classList.contains( 'present' ), 'First slide is present' );
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+ Reveal.getViewportElement().scrollTop = getViewportHeight() * 1;
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+
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+ return new Promise( resolve => {
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+ setTimeout(() => {
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+ assert.ok( slides[1].classList.contains( 'present' ), 'Second slide is present' );
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+ resolve();
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+ }, 100);
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+ } );
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+ });
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+
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+ QUnit.test( 'Fires slideschanged event when scrolling', assert => {
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+ assert.timeout( 200 );
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+ assert.expect( 2 );
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+
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+ const slides = document.querySelectorAll( '.reveal .slides section' );
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+
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+ return new Promise( resolve => {
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+ let callback = ( event ) => {
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+ Reveal.off( 'slidechanged', callback );
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+ assert.ok( true, 'slidechanged event fired' );
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+ assert.ok( event.currentSlide.classList.contains( 'present' ), 'slidechanged provides reference to currentSlide' );
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+ resolve();
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+ }
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+
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+ Reveal.on( 'slidechanged', callback );
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+ Reveal.getViewportElement().scrollTop = getViewportHeight() * 2;
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+ });
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+ });
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+
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+ } );
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+ </script>
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+
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+ </body>
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+</html>
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Hakim El Hattab