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 // Bug 787378 - Add mozbrowserfirstpaint event.

     5 "use strict";

     7 SimpleTest.waitForExplicitFinish();

     8 browserElementTestHelpers.setEnabledPref(true);

     9 browserElementTestHelpers.addPermission();

    11 function runTest() {

    12   var iframe = document.createElement('iframe');

    13   SpecialPowers.wrap(iframe).mozbrowser = true;

    15   var gotFirstPaint = false;

    16   var gotFirstLocationChange = false;

    17   iframe.addEventListener('mozbrowserfirstpaint', function(e) {

    18     ok(!gotFirstPaint, "Got only one first paint.");

    19     gotFirstPaint = true;

    21     if (gotFirstLocationChange) {

    22       iframe.src = browserElementTestHelpers.emptyPage1 + '?2';

    23     }

    24   });

    26   iframe.addEventListener('mozbrowserlocationchange', function(e) {

    27     if (e.detail == browserElementTestHelpers.emptyPage1) {

    28       gotFirstLocationChange = true;

    29       if (gotFirstPaint) {

    30         iframe.src = browserElementTestHelpers.emptyPage1 + '?2';

    31       }

    32     }

    33     else if (e.detail.endsWith('?2')) {

    34       SimpleTest.finish();

    35     }

    36   });

    38   document.body.appendChild(iframe);

    40   iframe.src = browserElementTestHelpers.emptyPage1;

    41 }

    43 addEventListener('testready', runTest);

The Tor Browser / file revision