<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=360220
-->
<window title="Mozilla Bug 360220"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<body xmlns="http://www.w3.org/1999/xhtml">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=360220">Mozilla Bug 360220</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
<menulist id="menulist">
<menupopup>
<menuitem id="firstItem" label="foo" selected="true"/>
<menuitem id="secondItem" label="bar"/>
</menupopup>
</menulist>
<script class="testbody" type="application/javascript">
<![CDATA[
SimpleTest.waitForExplicitFinish();
/** Test for Bug 360220 **/
var menulist = document.getElementById("menulist");
var secondItem = document.getElementById("secondItem");
menulist.selectedItem = secondItem;
is(menulist.label, "bar", "second item was not selected");
let mutObserver = new MutationObserver(() => {
is(menulist.label, "new label", "menulist label was not updated to the label of its selected item");
done();
});
mutObserver.observe(menulist, { attributeFilter: ['label'] });
secondItem.label = "new label";
let failureTimeout = setTimeout(function() {
ok(false, "menulist label should have updated");
done();
}, 2000);
function done() {
mutObserver.disconnect();
clearTimeout(failureTimeout);
SimpleTest.finish();
}
]]>
</script>
</window>