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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>reveal.js - Test Plugins</title>
<link rel="stylesheet" href="../css/reveal.css">
<link rel="stylesheet" href="qunit-2.5.0.css">
</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="../js/reveal.js"></script>
<script src="qunit-2.5.0.js"></script>
<script>
QUnit.module( 'Plugins' );
var initCounter = { PluginB: 0, PluginC: 0, PluginD: 0 };
// Plugin with no init method
var PluginA = {};
// Plugin with init method
var PluginB = { init: function() {
initCounter['PluginB'] += 1;
} };
// Async plugin with init method
var PluginC = { init: function() {
return new Promise(function( resolve ) {
setTimeout( () => {
initCounter['PluginC'] += 1;
resolve();
}, 1000 );
});
} };
// Plugin initialized after reveal.js is ready
var PluginD = { init: function() {
initCounter['PluginD'] += 1;
} };
var PluginE = {};
Reveal.registerPlugin( 'PluginA', PluginA );
Reveal.registerPlugin( 'PluginB', PluginB );
Reveal.registerPlugin( 'PluginC', PluginC );
Reveal.initialize();
QUnit.test( 'Can initialize synchronously', function( assert ) {
assert.strictEqual( initCounter['PluginB'], 1 );
Reveal.registerPlugin( 'PluginB', 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.addEventListener( 'ready', function() {
assert.strictEqual( initCounter['PluginC'], 1, 'finsihed initializing when reveal.js dispatches "ready"' );
done();
Reveal.registerPlugin( 'PluginD', 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', 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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