The Tor Browser: dom/browser-element/mochitest/browserElement

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* Any copyright is dedicated to the public domain.

     2    http://creativecommons.org/publicdomain/zero/1.0/ */

     4 // Test the setVisible property for mozbrowser

     5 "use strict";

     7 SimpleTest.waitForExplicitFinish();

     8 browserElementTestHelpers.setEnabledPref(true);

     9 browserElementTestHelpers.addPermission();

    11 var iframeScript = function() {

    12   content.document.addEventListener("visibilitychange", function() {

    13     sendAsyncMessage('test:visibilitychange', {

    14       hidden: content.document.hidden

    15     });

    16   }, false);

    17 }

    19 function runTest() {

    20   var mm;

    21   var numEvents = 0;

    22   var iframe1 = document.createElement('iframe');

    23   SpecialPowers.wrap(iframe1).mozbrowser = true;

    24   iframe1.src = 'data:text/html,1';

    26   document.body.appendChild(iframe1);

    28   function recvVisibilityChanged(msg) {

    29     msg = SpecialPowers.wrap(msg);

    30     numEvents++;

    31     if (numEvents === 1) {

    32       ok(true, 'iframe recieved visibility changed');

    33       ok(msg.json.hidden === true, 'hidden attribute correctly set');

    34       iframe1.setVisible(false);

    35       iframe1.setVisible(true);

    36     } else if (numEvents === 2) {

    37       ok(msg.json.hidden === false, 'hidden attribute correctly set');

    38       // Allow some time in case we generate too many events

    39       setTimeout(function() {

    40         mm.removeMessageListener('test:visibilitychange', recvVisibilityChanged);

    41         SimpleTest.finish();

    42       }, 100);

    43     } else {

    44       ok(false, 'Too many visibilitychange events');

    45     }

    46   }

    48   function iframeLoaded() {

    49     testGetVisible();

    50   }

    52   function testGetVisible() {

    53     iframe1.setVisible(false);

    54     iframe1.getVisible().onsuccess = function(evt) {

    55       ok(evt.target.result === false, 'getVisible() responds false after setVisible(false)');

    57       iframe1.setVisible(true);

    58       iframe1.getVisible().onsuccess = function(evt) {

    59         ok(evt.target.result === true, 'getVisible() responds true after setVisible(true)');

    60         testVisibilityChanges();

    61       };

    62     };

    63   }

    65   function testVisibilityChanges() {

    66     mm = SpecialPowers.getBrowserFrameMessageManager(iframe1);

    67     mm.addMessageListener('test:visibilitychange', recvVisibilityChanged);

    68     mm.loadFrameScript('data:,(' + iframeScript.toString() + ')();', false);

    69     iframe1.setVisible(false);

    70   }

    72   iframe1.addEventListener('mozbrowserloadend', iframeLoaded);

    73 }

    75 addEventListener('testready', runTest);

The Tor Browser / file revision