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 741755 - Test that canGo{Back,Forward} and go{Forward,Back} work with

     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 checkCanGoBackAndForward(canGoBack, canGoForward, nextTest) {

    35   var seenCanGoBackResult = false;

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

    37     is(seenCanGoBackResult, false, "onsuccess handler shouldn't be called twice.");

    38     seenCanGoBackResult = true;

    39     is(e.target.result, canGoBack);

    40     maybeRunNextTest();

    41   };

    43   var seenCanGoForwardResult = false;

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

    45     is(seenCanGoForwardResult, false, "onsuccess handler shouldn't be called twice.");

    46     seenCanGoForwardResult = true;

    47     is(e.target.result, canGoForward);

    48     maybeRunNextTest();

    49   };

    51   function maybeRunNextTest() {

    52     if (seenCanGoBackResult && seenCanGoForwardResult) {

    53       nextTest();

    54     }

    55   }

    56 }

    58 function test2() {

    59   checkCanGoBackAndForward(false, false, test3);

    60 }

    62 function test3() {

    63   addOneShotIframeEventListener('mozbrowserloadend', function() {

    64     checkCanGoBackAndForward(true, false, test4);

    65   });

    67   SimpleTest.executeSoon(function() {

    68     iframe.src = browserElementTestHelpers.emptyPage2;

    69   });

    70 }

    72 function test4() {

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

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

    75     checkCanGoBackAndForward(true, false, test5);

    76   });

    78   SimpleTest.executeSoon(function() {

    79     iframe.src = browserElementTestHelpers.emptyPage3;

    80   });

    81 }

    83 function test5() {

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

    85     is(e.detail, browserElementTestHelpers.emptyPage2);

    86     checkCanGoBackAndForward(true, true, test6);

    87   });

    88   iframe.goBack();

    89 }

    91 function test6() {

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

    93     is(e.detail, browserElementTestHelpers.emptyPage1);

    94     checkCanGoBackAndForward(false, true, SimpleTest.finish);

    95   });

    96   iframe.goBack();

    97 }

    99 addEventListener('testready', runTest);

The Tor Browser / file revision