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

76 строки
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";
/* global browserElementTestHelpers */
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
browserElementTestHelpers.allowTopLevelDataURINavigation();
function runTest() {
var iframe1 = document.createElement("iframe");
iframe1.setAttribute("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.setAttribute("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("testready", runTest);