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<!DOCTYPE HTML>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=502673
-->
<head>
<title>Test for Bug 502673</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script src="/tests/SimpleTest/EventUtils.js"></script>
</head>
<body onload="doTest();">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=502673">Mozilla Bug 502673</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 502673 **/
SimpleTest.waitForExplicitFinish();
function listener() {
}
listener.prototype =
{
NotifyDocumentWillBeDestroyed() {
var editor = SpecialPowers.wrap(this.input).editor;
editor.removeDocumentStateListener(this);
},
NotifyDocumentStateChanged(aNowDirty) {
var editor = SpecialPowers.wrap(this.input).editor;
editor.removeDocumentStateListener(this);
},
QueryInterface: SpecialPowers.wrapCallback(function(iid) {
if (iid.equals(SpecialPowers.Ci.nsIDocumentStateListener) ||
iid.equals(SpecialPowers.Ci.nsISupports))
return this;
throw SpecialPowers.Cr.NS_ERROR_NO_INTERFACE;
}),
};
function doTest() {
var input = document.getElementById("ip");
// Add multiple listeners to the same editor
var editor = SpecialPowers.wrap(input).editor;
var listener1 = new listener();
listener1.input = input;
var listener2 = new listener();
listener2.input = input;
var listener3 = new listener();
listener3.input = input;
editor.addDocumentStateListener(listener1);
editor.addDocumentStateListener(listener2);
editor.addDocumentStateListener(listener3);
// Test 1. Fire NotifyDocumentStateChanged notifications where the
// listeners remove themselves
input.value = "mozilla";
editor.undo();
// Report success if we get here - clearly we didn't crash
ok(true, "Multiple listeners removed themselves after " +
"NotifyDocumentStateChanged notifications - didn't crash");
// Add the listeners again for the next test
editor.addDocumentStateListener(listener1);
editor.addDocumentStateListener(listener2);
editor.addDocumentStateListener(listener3);
// Test 2. Fire NotifyDocumentWillBeDestroyed notifications where the
// listeners remove themselves (though in the real world, listeners
// shouldn't do this as nsEditor::PreDestroy removes them as
// listeners anyway)
document.body.removeChild(input);
ok(true, "Multiple listeners removed themselves after " +
"NotifyDocumentWillBeDestroyed notifications - didn't crash");
SimpleTest.finish();
}
</script>
</pre>
<input type="text" id="ip" />
</body>
</html>
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