test_messageChannel.xhtml

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<?xml version="1.0"?>

<?xml-stylesheet type="text/css" href="chrome://global/skin"?>

<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>

<window title="Test for MessageChannel API"

        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>

  <!-- test results are displayed in the html:body -->

  <body xmlns="http://www.w3.org/1999/xhtml" id="body">

  </body>

  <!-- test code goes here -->

  <script type="application/javascript"><![CDATA[

  ok("MessageChannel" in window, "Should MessageChannel exist?");

  var channel = new MessageChannel();

  ok(channel, "MessageChannel is created");

  channel.port1.onmessage = function() {

    ok(true, "message received!");

    SimpleTest.finish();

  var ifr = document.createXULElement('browser');

  ifr.setAttribute("src", "iframe_messageChannel_chrome.html");

  ifr.setAttribute("flex", "1");

  ifr.addEventListener('load', function() {

    ifr.contentWindow.postMessage(channel.port2, '*', [channel.port2]);

});

  var body = document.getElementById("body");

  body.appendChild(ifr);

  SimpleTest.waitForExplicitFinish();

  ]]></script>

</window>