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<!DOCTYPE HTML>
<html>
<head>
<title>Test loading of the same resource in multiple elements</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.requestCompleteLog();
var manager = new MediaTestManager;
function cloneLoaded(event) {
ok(true, "Clone loaded OK");
var e = event.target;
if (e._expectedDuration) {
ok(Math.abs(e.duration - e._expectedDuration) < 0.1,
"Clone " + e.currentSrc + " duration: " + e.duration + " expected: " + e._expectedDuration);
}
e.removeEventListener("loadeddata", cloneLoaded, false);
removeNodeAndSource(e);
manager.finished(e.token);
}
function tryClone(event) {
var e = event.target;
var clone = e.cloneNode(false);
clone.token = e.token;
// Log events for debugging.
var events = ["suspend", "play", "canplay", "canplaythrough", "loadstart", "loadedmetadata",
"loadeddata", "playing", "ended", "error", "stalled", "emptied", "abort",
"waiting", "pause"];
function logEvent(evt) {
var e = evt.target;
info(e.token + ": got " + evt.type);
}
events.forEach(function(e) {
clone.addEventListener(e, logEvent, false);
});
if (e._expectedDuration) {
ok(Math.abs(e.duration - e._expectedDuration) < 0.1,
e.currentSrc + " duration: " + e.duration + " expected: " + e._expectedDuration);
clone._expectedDuration = e._expectedDuration;
}
clone.addEventListener("loadeddata", cloneLoaded, false);
clone.onloadstart = function(evt) {
info("cloned " + evt.target.token + " start loading.");
evt.target.onloadstart = null;
// Since there is only one H264 decoder instance, we have to delete the
// decoder of the original element for the cloned element to load. However,
// we can't delete the decoder too early otherwise cloning decoder will
// fail to kick in. We wait for 'loadstart' event of the cloned element to
// know when the decoder is already cloned and we can delete the decoder of
// the original element.
removeNodeAndSource(e);
}
e.removeEventListener("loadeddata", tryClone, false);
}
// This test checks that loading the same URI twice in different elements at the same time
// uses the same resource without doing another network fetch. One of the gCloneTests
// uses dynamic_resource.sjs to return one resource on the first fetch and a different resource
// on the second fetch. These resources have different lengths, so if the cloned element
// does a network fetch it will get a resource with the wrong length and we get a test
// failure.
function initTest(test, token) {
var elemType = /^audio/.test(test.type) ? "audio" : "video";
var e = document.createElement(elemType);
e.preload = "auto";
if (e.canPlayType(test.type)) {
e.src = test.name;
if (test.duration) {
e._expectedDuration = test.duration;
}
ok(true, "Trying to load " + test.name);
e.addEventListener("loadeddata", tryClone, false);
e.load();
e.token = token;
manager.started(token);
}
}
manager.runTests(gCloneTests, initTest);
</script>
</pre>
</body>
</html>
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