gecko-dev/dom/browser-element/mochitest/browserElement_Titlechange.js

72 lines
2.5 KiB
JavaScript

/* 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();
function runTest() {
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addToWhitelist();
var iframe1 = document.createElement('iframe');
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');
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,<html><head><title>Title 3</title></head><body></body></html>';
}
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,<html><head><title>Title</title></head><body></body></html>';
iframe2.src = 'data:text/html,<html><head><title>BAD TITLE</title></head><body></body></html>';
iframe3.src = 'data:text/html,<html><head><title>SHOULD NOT GET EVENT</title></head><body></body></html>';
}
addEventListener('load', function() { SimpleTest.executeSoon(runTest); });