gecko-dev/dom/base/test/test_messageChannel_post.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=677638
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 677638 - port cloning</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=677638">Mozilla Bug 677638</a>
<div id="content"></div>
<pre id="test">
</pre>
<script type="application/javascript">
function start() {
var a = new MessageChannel();
ok(a, "MessageChannel created");
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window.addEventListener('message', receiveMessage, false);
function receiveMessage(evt) {
if (evt.data.status == 'READY') {
runTest();
} else {
ok(false, "Unknown message");
}
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}
var div = document.getElementById("content");
ok(div, "Parent exists");
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var ifr = document.createElement("iframe");
ifr.addEventListener("load", iframeLoaded, false);
ifr.setAttribute('src', "iframe_messageChannel_post.html");
div.appendChild(ifr);
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function iframeLoaded() {
ifr.contentWindow.postMessage({ port: a.port2 }, '*', [a.port2]);
}
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var tests = [ 42,
null,
undefined,
"hello world",
new Blob([]),
true ];
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a.port1.onmessage = function(evt) {
ok(tests.length, "We are waiting for a message");
is(tests[0], evt.data, "Value ok: " + tests[0]);
tests.shift();
runTest();
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}
function runTest() {
if (!tests.length) {
SimpleTest.finish();
return;
}
a.port1.postMessage(tests[0]);
}
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}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({"set": [["dom.messageChannel.enabled", true]]}, start);
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</script>
</body>
</html>