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

82 строки
3.0 KiB
JavaScript

/* Any copyright is dedicated to the public domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test that an <iframe mozbrowser> is a window.{top,parent,frameElement} barrier.
"use strict";
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
var iframe;
function runTest() {
iframe = document.createElement('iframe');
iframe.addEventListener('mozbrowserloadend', function() {
try {
outerIframeLoaded();
} catch(e) {
dump("Got error: " + e + '\n');
}
});
iframe.setAttribute('mozbrowser', 'true');
iframe.src = 'data:text/html,Outer iframe <iframe id="inner-iframe"></iframe>';
// For kicks, this test uses a display:none iframe. This shouldn't make a
// difference in anything.
iframe.style.display = 'none';
document.body.appendChild(iframe);
}
var numMsgReceived = 0;
function outerIframeLoaded() {
// If you're changing the amount of is() calls in injectedScript,
// also change the number in waitForMessages accordingly
var injectedScript =
"data:,function is(a, b, desc) { \
if (a == b) { \
sendAsyncMessage('test:test-pass', desc); \
} else { \
sendAsyncMessage('test:test-fail', desc + ' ' + a + ' != ' + b); \
} \
} \
is(content.window.top, content.window, 'top'); \
is(content.window.content, content.window, 'content'); \
is(content.window.parent, content.window, 'parent'); \
is(content.window.frameElement, null, 'frameElement'); \
var innerIframe = content.document.getElementById('inner-iframe'); \
var innerWindow = innerIframe.contentWindow; \
is(innerWindow.top, content.window, 'inner top'); \
is(innerWindow.content, content.window, 'inner content'); \
is(innerWindow.parent, content.window, 'inner parent'); \
is(innerWindow.frameElement, innerIframe, 'inner frameElement');"
var mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
function onRecvTestPass(msg) {
numMsgReceived++;
ok(true, msg.json);
}
mm.addMessageListener('test:test-pass', onRecvTestPass);
function onRecvTestFail(msg) {
numMsgReceived++;
ok(false, msg.json);
}
mm.addMessageListener('test:test-fail', onRecvTestFail);
mm.loadFrameScript(injectedScript, /* allowDelayedLoad = */ false);
// 8 is the number of is() calls in injectedScript
waitForMessages(8);
}
function waitForMessages(num) {
if (numMsgReceived < num) {
SimpleTest.executeSoon(function() { waitForMessages(num); });
return;
}
SimpleTest.finish();
}
addEventListener('testready', runTest);