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 807056 - [Browser] Clear History doesn't clear back/forward history in open tabs

     5 // <iframe mozbrowser>.

     7 "use strict";

     8 SimpleTest.waitForExplicitFinish();

     9 browserElementTestHelpers.setEnabledPref(true);

    10 browserElementTestHelpers.addPermission();

    12 var iframe;

    13 function addOneShotIframeEventListener(event, fn) {

    14   function wrapper(e) {

    15     iframe.removeEventListener(event, wrapper);

    16     fn(e);

    17   };

    19   iframe.addEventListener(event, wrapper);

    20 }

    22 function runTest() {

    23   iframe = document.createElement('iframe');

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

    26   addOneShotIframeEventListener('mozbrowserloadend', function() {

    27     SimpleTest.executeSoon(test2);

    28   });

    30   iframe.src = browserElementTestHelpers.emptyPage1;

    31   document.body.appendChild(iframe);

    32 }

    34 function purgeHistory(nextTest) {

    35   var seenCanGoBackResult = false;

    36   var seenCanGoForwardResult = false;

    38   iframe.purgeHistory().onsuccess = function(e) {

    39     ok(true, "The history has been purged");

    41     iframe.getCanGoBack().onsuccess = function(e) {

    42       is(e.target.result, false, "Iframe cannot go back");

    43       seenCanGoBackResult = true;

    44       maybeRunNextTest();

    45     };

    47     iframe.getCanGoForward().onsuccess = function(e) {

    48       is(e.target.result, false, "Iframe cannot go forward");

    49       seenCanGoForwardResult = true;

    50       maybeRunNextTest();

    51     };

    52   };

    54   function maybeRunNextTest() {

    55     if (seenCanGoBackResult && seenCanGoForwardResult) {

    56       nextTest();

    57     }

    58   }

    59 }

    61 function test2() {

    62   purgeHistory(test3);

    63 }

    65 function test3() {

    66   addOneShotIframeEventListener('mozbrowserloadend', function() {

    67     purgeHistory(test4);

    68   });

    70   SimpleTest.executeSoon(function() {

    71     iframe.src = browserElementTestHelpers.emptyPage2;

    72   });

    73 }

    75 function test4() {

    76   addOneShotIframeEventListener('mozbrowserlocationchange', function(e) {

    77     is(e.detail, browserElementTestHelpers.emptyPage3);

    78     purgeHistory(SimpleTest.finish);

    79   });

    81   SimpleTest.executeSoon(function() {

    82     iframe.src = browserElementTestHelpers.emptyPage3;

    83   });

    84 }

    86 addEventListener('testready', runTest);

The Tor Browser / file revision