The Tor Browser: dom/workers/test/test_suspend.html@b8a032363ba2

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

     1 <!--

     2   Any copyright is dedicated to the Public Domain.

     3   http://creativecommons.org/publicdomain/zero/1.0/

     4 -->

     5 <!DOCTYPE HTML>

     6 <html>

     7 <head>

     8   <meta charset="utf-8">

     9   <title>Test for DOM Worker Threads</title>

    10   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>

    11   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

    12 </head>

    13 <body>

    14 <p id="display"></p>

    15 <div id="content" style="display: none"></div>

    16 <pre id="test">

    17 <iframe id="workerFrame" src="suspend_iframe.html" onload="subframeLoaded();">

    18 </iframe>

    19 <script class="testbody" type="text/javascript">

    21   SimpleTest.waitForExplicitFinish();

    23   var iframe;

    24   var lastCount;

    26   var suspended = false;

    27   var resumed = false;

    28   var finished = false;

    30   var interval;

    31   var oldMessageCount;

    32   var waitCount = 0;

    34   function setCachePref(enabled) {

    35     var prefBranch = SpecialPowers.Cc["@mozilla.org/preferences-service;1"]

    36                                   .getService(SpecialPowers.Ci.nsIPrefBranch);

    37     if (enabled) {

    38       prefBranch.setBoolPref("browser.sessionhistory.cache_subframes", true);

    39     }

    40     else {

    41       try {

    42         prefBranch.clearUserPref("browser.sessionhistory.cache_subframes");

    43       } catch (e) { /* Pref didn't exist, meh */ }

    44     }

    45   }

    47   function finishTest() {

    48     if (finished) {

    49       return;

    50     }

    51     finished = true;

    52     setCachePref(false);

    53     iframe.terminateWorker();

    54     SimpleTest.finish();

    55   }

    57   function waitInterval() {

    58     if (finished) {

    59       return;

    60     }

    61     is(iframe.location, "about:blank", "Wrong url!");

    62     is(suspended, true, "Not suspended?");

    63     is(resumed, false, "Already resumed?!");

    64     is(lastCount, oldMessageCount, "Received a message while suspended!");

    65     if (++waitCount == 5) {

    66       clearInterval(interval);

    67       resumed = true;

    68       iframe.history.back();

    69     }

    70   }

    72   function badOnloadCallback() {

    73     if (finished) {

    74       return;

    75     }

    76     ok(false, "We don't want suspend_iframe.html to fire a new load event, we want it to come out of the bfcache!");

    77     finishTest();

    78   }

    80   function suspendCallback() {

    81     if (finished) {

    82       return;

    83     }

    84     is(iframe.location, "about:blank", "Wrong url!");

    85     is(suspended, false, "Already suspended?");

    86     is(resumed, false, "Already resumed?");

    87     setCachePref(false);

    88     suspended = true;

    89     var iframeElement = document.getElementById("workerFrame");

    90     iframeElement.onload = badOnloadCallback;

    91     oldMessageCount = lastCount;

    92     interval = setInterval(waitInterval, 1000);

    93   }

    95   function messageCallback(data) {

    96     if (finished) {

    97       return;

    98     }

   100     if (!suspended) {

   101       ok(lastCount === undefined || lastCount == data - 1,

   102          "Got good data, lastCount = " + lastCount + ", data = " + data);

   103       lastCount = data;

   104       if (lastCount == 25) {

   105         setCachePref(true);

   106         iframe.location = "about:blank";

   107         // We want suspend_iframe.html to go into bfcache, so we need to flush

   108         // out all pending notifications. Otherwise, if they're flushed too

   109         // late, they could kick us out of the bfcache again.

   110         iframe.document.body.offsetTop;

   111       }

   112       return;

   113     }

   115     var newLocation =

   116       window.location.toString().replace("test_suspend.html",

   117                                          "suspend_iframe.html");

   118     is(newLocation.indexOf(iframe.location.toString()), 0, "Wrong url!");

   119     is(resumed, true, "Got message before resumed!");

   120     is(lastCount, data - 1, "Missed a message, suspend failed!");

   121     finishTest();

   122   }

   124   function errorCallback(data) {

   125     if (finished) {

   126       return;

   127     }

   128     ok(false, "Iframe had an error: '" + data + "'");

   129     finishTest();

   130   }

   132   function subframeLoaded() {

   133     if (finished) {

   134       return;

   135     }

   136     var iframeElement = document.getElementById("workerFrame");

   137     iframeElement.onload = suspendCallback;

   139     iframe = iframeElement.contentWindow;

   140     ok(iframe, "No iframe?!");

   142     iframe.startWorker(messageCallback, errorCallback);

   143   }

   145 </script>

   146 </pre>

   147 </body>

   148 </html>

The Tor Browser / file revision