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- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>reveal.js - Test Plugins</title>
- <link rel="stylesheet" href="../dist/reveal.css">
- <link rel="stylesheet" href="../node_modules/qunit/qunit/qunit.css">
- <script src="../node_modules/qunit/qunit/qunit.js"></script>
- </head>
- <body style="overflow: auto;">
- <div id="qunit"></div>
- <div id="qunit-fixture"></div>
- <div class="reveal" style="display: none;">
- <div class="slides">
- <section>Slide content</section>
- </div>
- </div>
- <script src="../dist/reveal.js"></script>
- <script>
- QUnit.module( 'Plugins' );
- var initCounter = { PluginB: 0, PluginC: 0, PluginD: 0 };
- // Plugin with no init method
- var PluginA = { id: 'PluginA' };
- // Plugin with init method
- var PluginB = { id: 'PluginB', init: function() {
- initCounter['PluginB'] += 1;
- } };
- // Async plugin with init method
- var PluginC = { id: 'PluginC', init: function() {
- return new Promise(function( resolve ) {
- setTimeout( () => {
- initCounter['PluginC'] += 1;
- resolve();
- }, 1000 );
- });
- } };
- // Plugin initialized after reveal.js is ready
- var PluginD = { id: 'PluginD', init: function() {
- initCounter['PluginD'] += 1;
- } };
- var PluginE = { id: 'PluginE' };
- var reveal = new Reveal( document.querySelector( '.reveal' ), {
- plugins: [ PluginA ]
- } );
- reveal.registerPlugin( PluginB );
- reveal.registerPlugin( PluginC );
- reveal.initialize();
- QUnit.test( 'Can initialize synchronously', function( assert ) {
- assert.strictEqual( initCounter['PluginB'], 1 );
- reveal.registerPlugin( PluginB );
- assert.strictEqual( initCounter['PluginB'], 1, 'prevents duplicate registration' );
- });
- QUnit.test( 'Can initialize asynchronously', function( assert ) {
- assert.expect( 3 );
- var done = assert.async( 2 );
- assert.strictEqual( initCounter['PluginC'], 0, 'async plugin not immediately initialized' );
- reveal.on( 'ready', function() {
- assert.strictEqual( initCounter['PluginC'], 1, 'finsihed initializing when reveal.js dispatches "ready"' );
- done();
- reveal.registerPlugin( PluginD );
- assert.strictEqual( initCounter['PluginD'], 1, 'plugin registered after reveal.js is ready still initiailizes' );
- done();
- });
- } );
- QUnit.test( 'Can check if plugin is registered', function( assert ) {
- assert.strictEqual( reveal.hasPlugin( 'PluginA' ), true );
- assert.strictEqual( reveal.hasPlugin( 'PluginE' ), false );
- reveal.registerPlugin( PluginE );
- assert.strictEqual( reveal.hasPlugin( 'PluginE' ), true );
- } );
- QUnit.test( 'Can retrieve plugin instance', function( assert ) {
- assert.strictEqual( reveal.getPlugin( 'PluginB' ), PluginB );
- } );
- </script>
- </body>
- </html>
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