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

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JavaScript
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/* Any copyright is dedicated to the public domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test the setVisible property for mozbrowser
"use strict";
SimpleTest.waitForExplicitFinish();
var iframeScript = function() {
content.document.addEventListener("visibilitychange", function() {
sendAsyncMessage('test:visibilitychange', {
hidden: content.document.hidden
});
}, false);
}
function runTest() {
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
var mm;
var numEvents = 0;
var iframe1 = document.createElement('iframe');
SpecialPowers.wrap(iframe1).mozbrowser = true;
iframe1.src = 'data:text/html,1';
document.body.appendChild(iframe1);
function recvVisibilityChanged(msg) {
msg = SpecialPowers.wrap(msg);
numEvents++;
if (numEvents === 1) {
ok(true, 'iframe recieved visibility changed');
ok(msg.json.hidden === true, 'hidden attribute correctly set');
iframe1.setVisible(false);
iframe1.setVisible(true);
} else if (numEvents === 2) {
ok(msg.json.hidden === false, 'hidden attribute correctly set');
// Allow some time in case we generate too many events
setTimeout(function() {
mm.removeMessageListener('test:visibilitychange', recvVisibilityChanged);
SimpleTest.finish();
}, 100);
} else {
ok(false, 'Too many visibilitychange events');
}
}
function iframeLoaded() {
testGetVisible();
}
function testGetVisible() {
iframe1.setVisible(false);
iframe1.getVisible().onsuccess = function(evt) {
ok(evt.target.result === false, 'getVisible() responds false after setVisible(false)');
iframe1.setVisible(true);
iframe1.getVisible().onsuccess = function(evt) {
ok(evt.target.result === true, 'getVisible() responds true after setVisible(true)');
testVisibilityChanges();
};
};
}
function testVisibilityChanges() {
mm = SpecialPowers.getBrowserFrameMessageManager(iframe1);
mm.addMessageListener('test:visibilitychange', recvVisibilityChanged);
mm.loadFrameScript('data:,(' + iframeScript.toString() + ')();', false);
iframe1.setVisible(false);
}
iframe1.addEventListener('mozbrowserloadend', iframeLoaded);
}
addEventListener('load', function() { SimpleTest.executeSoon(runTest); });