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+<!doctype html>
+<html lang="en">
+
+ <head>
+ <meta charset="utf-8">
+
+ <title>reveal.js - Test Iframes</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>1</section>
+ <section>2</section>
+ <section>
+ <iframe class="default-iframe" data-src="#"></iframe>
+ <iframe class="preload-iframe" data-src="#" data-preload></iframe>
+ </section>
+
+ </div>
+
+ </div>
+
+ <script src="../js/reveal.js"></script>
+ <script src="qunit-2.5.0.js"></script>
+
+ <script>
+
+
+ Reveal.addEventListener( 'ready', function() {
+
+ var defaultIframe = document.querySelector( '.default-iframe' ),
+ preloadIframe = document.querySelector( '.preload-iframe' );
+
+ QUnit.module( 'Iframe' );
+
+ QUnit.test( 'Using default settings', function( assert ) {
+
+ Reveal.slide(1);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), false, 'not preloaded when within viewDistance' );
+
+ Reveal.slide(2);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), true, 'loaded when slide becomes visible' );
+
+ Reveal.slide(1);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), false, 'unloaded when slide becomes invisible' );
+
+ });
+
+ QUnit.test( 'Using data-preload', function( assert ) {
+
+ Reveal.slide(1);
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), true, 'preloaded within viewDistance' );
+
+ Reveal.slide(2);
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), true, 'loaded when slide becoems visible' );
+
+ Reveal.slide(0);
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), false, 'unloads outside of viewDistance' );
+
+ });
+
+ QUnit.test( 'Using preloadIframes: true', function( assert ) {
+
+ Reveal.configure({ preloadIframes: true });
+
+ Reveal.slide(1);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), true, 'preloaded within viewDistance' );
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), true, 'preloaded within viewDistance' );
+
+ Reveal.slide(2);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), true, 'loaded when slide becomes visible' );
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), true, 'loaded when slide becomes visible' );
+
+ });
+
+ QUnit.test( 'Using preloadIframes: false', function( assert ) {
+
+ Reveal.configure({ preloadIframes: false });
+
+ Reveal.slide(0);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), false, 'not preloaded within viewDistance' );
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), false, 'not preloaded within viewDistance' );
+
+ Reveal.slide(2);
+ assert.strictEqual( defaultIframe.hasAttribute( 'src' ), true, 'loaded when slide becomes visible' );
+ assert.strictEqual( preloadIframe.hasAttribute( 'src' ), true, 'loaded when slide becomes visible' );
+
+ });
+
+ } );
+
+ Reveal.initialize({
+ viewDistance: 2
+ });
+ </script>
+
+ </body>
+</html>