diff -r 000000000000 -r 6474c204b198 dom/browser-element/mochitest/browserElement_Titlechange.js
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/browser-element/mochitest/browserElement_Titlechange.js Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,68 @@
+/* Any copyright is dedicated to the public domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that the onmozbrowsertitlechange event works.
+"use strict";
+
+SimpleTest.waitForExplicitFinish();
+browserElementTestHelpers.setEnabledPref(true);
+browserElementTestHelpers.addPermission();
+
+function runTest() {
+ var iframe1 = document.createElement('iframe');
+ SpecialPowers.wrap(iframe1).mozbrowser = true;
+ document.body.appendChild(iframe1);
+
+ // iframe2 is a red herring; we modify its title but don't listen for
+ // titlechanges; we want to make sure that its titlechange events aren't
+ // picked up by the listener on iframe1.
+ var iframe2 = document.createElement('iframe');
+ SpecialPowers.wrap(iframe2).mozbrowser = true;
+ document.body.appendChild(iframe2);
+
+ // iframe3 is another red herring. It's not a mozbrowser, so we shouldn't
+ // get any titlechange events on it.
+ var iframe3 = document.createElement('iframe');
+ document.body.appendChild(iframe3);
+
+ var numTitleChanges = 0;
+
+ iframe1.addEventListener('mozbrowsertitlechange', function(e) {
+ // Ignore empty titles; these come from about:blank.
+ if (e.detail == '')
+ return;
+
+ numTitleChanges++;
+
+ if (numTitleChanges == 1) {
+ is(e.detail, 'Title');
+ SpecialPowers.getBrowserFrameMessageManager(iframe1)
+ .loadFrameScript("data:,content.document.title='New title';",
+ /* allowDelayedLoad = */ false);
+ SpecialPowers.getBrowserFrameMessageManager(iframe2)
+ .loadFrameScript("data:,content.document.title='BAD TITLE 2';",
+ /* allowDelayedLoad = */ false);
+ }
+ else if (numTitleChanges == 2) {
+ is(e.detail, 'New title');
+ iframe1.src = 'data:text/html,Title 3';
+ }
+ else if (numTitleChanges == 3) {
+ is(e.detail, 'Title 3');
+ SimpleTest.finish();
+ }
+ else {
+ ok(false, 'Too many titlechange events.');
+ }
+ });
+
+ iframe3.addEventListener('mozbrowsertitlechange', function(e) {
+ ok(false, 'Should not get a titlechange event for iframe3.');
+ });
+
+ iframe1.src = 'data:text/html,Title';
+ iframe2.src = 'data:text/html,BAD TITLE';
+ iframe3.src = 'data:text/html,SHOULD NOT GET EVENT';
+}
+
+addEventListener('testready', runTest);