dom/media/test/test_delay_load.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=479711
   5 -->
   6 <head>
   7   <title>Test for Bug 479711</title>
   8   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   9   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  10   <script type="text/javascript" src="manifest.js"></script>
  11   <script>
  12
  13   var gRegisteredElements = [];
  14   var testWindows = [];
  15
  16   function register(v) {
  17     gRegisteredElements.push(v);
  18   }
  19
  20   function loaded() {
  21     info("onload fired!");
  22
  23     for (var i = 0; i < gRegisteredElements.length; ++i) {
  24       var v = gRegisteredElements[i];
  25       ok(v.readyState >= v.HAVE_CURRENT_DATA,
  26          v._name + ":" + v.id + " is not ready before onload fired (" + v.readyState + ")");
  27     }
  28
  29     for (i=0; i<testWindows.length; ++i) {
  30       testWindows[i].close();
  31     }
  32
  33     mediaTestCleanup();
  34
  35     SimpleTest.finish();
  36   }
  37
  38   addLoadEvent(loaded);
  39
  40   </script>
  41 </head>
  42 <body>
  43 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=479711">Mozilla Bug 479711</a>
  44 <p id="display"></p>
  45 <div id="content" style="display: none"></div>
  46 <pre id="test">
  47 <script type="application/javascript">
  48
  49 /** Test for Bug 479711 **/
  50
  51 function createVideo(name, type, id) {
  52   var v = document.createElement("video");
  53   v.preload = "metadata";
  54   // Make sure each video is a unique resource
  55   v.src = name + "?" + id;
  56   v._name = name;
  57   v.id = id;
  58   register(v);
  59   return v;
  60 }
  61
  62 var test = getPlayableVideo(gSmallTests);
  63
  64 // Straightforward add, causing a load.
  65 var v = createVideo(test.name, test.type, "1");
  66 document.body.appendChild(v);
  67
  68 // Load, add, then remove.
  69 v = createVideo(test.name, test.type, "1");
  70 v.load();
  71 document.body.appendChild(v);
  72 v.remove();
  73
  74 // Load and add.
  75 v = createVideo(test.name, test.type, "2");
  76 v.load();
  77 document.body.appendChild(v);
  78
  79 // Load outside of doc.
  80 v = createVideo(test.name, test.type, "3");
  81 v.load();
  82
  83 // Open a new window for the following test. We open it here instead of in
  84 // the event handler to ensure that our document load event doesn't fire while
  85 // window.open is spinning the event loop.
  86 var w = window.open("", "testWindow", "width=400,height=400");
  87 testWindows.push(w);
  88
  89 v = createVideo(test.name, test.type, "4");
  90 v.onloadstart = function(e) {
  91   // Using a new window to do this is a bit annoying, but if we use an iframe here,
  92   // delaying of the iframe's load event might interfere with the firing of our load event
  93   // in some confusing way. So it's simpler just to use another window.
  94   w.document.body.appendChild(v);
  95 };
  96 v.load(); // load started while in this document, this doc's load will block until
  97           // the video's finished loading (in the other document).
  98
  99 if (gRegisteredElements.length) {
 100   SimpleTest.waitForExplicitFinish();
 101 } else {
 102   todo(false, "No types supported");
 103 }
 104
 105 </script>
 106 </pre>
 107 </body>
 108 </html>