The Tor Browser: docshell/test/chrome/test

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

     1 <?xml version="1.0"?>

     2 <?xml-stylesheet type="text/css" href="chrome://global/skin"?>

     3 <?xml-stylesheet type="text/css" href="/tests/SimpleTest/test.css"?>

     4 <!--

     5 https://bugzilla.mozilla.org/show_bug.cgi?id=453650

     6 -->

     7 <window title="Mozilla Bug 453650"

     8         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

    10   <script type="application/javascript"

    11           src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

    13   <!-- test code goes here -->

    14   <script type="application/javascript">

    15   <![CDATA[

    17   /** Test for Bug 453650 **/

    18   SimpleTest.waitForExplicitFinish();

    20   var Ci = Components.interfaces;

    21   var Cr = Components.results;

    23   var iter = runTests();

    24   nextTest();

    26   function runTests() {

    27     var iframe = document.createElement("iframe");

    28     iframe.style.width = "300px";

    29     iframe.style.height = "300px";

    30     iframe.setAttribute("src", "data:text/html,<h1 id='h'>hello</h1>");

    32     document.documentElement.appendChild(iframe);

    33     yield whenLoaded(iframe);

    34     info("iframe loaded");

    36     var h1 = iframe.contentDocument.getElementById("h");

    37     h1.style.width = "400px";

    38     yield waitForInterruptibleReflow(iframe.docShell);

    40     h1.style.width = "300px";

    41     waitForReflow(iframe.docShell);

    42     yield is(300, h1.offsetWidth, "h1 has correct width");

    43   }

    45   function waitForInterruptibleReflow(docShell) {

    46     waitForReflow(docShell, true);

    47   }

    49   function waitForReflow(docShell, interruptible = false) {

    50     function done() {

    51       docShell.removeWeakReflowObserver(observer);

    52       SimpleTest.executeSoon(nextTest);

    53     }

    55     var observer = {

    56       reflow: function (start, end) {

    57         if (interruptible) {

    58           ok(false, "expected interruptible reflow");

    59         } else {

    60           ok(true, "observed uninterruptible reflow");

    61         }

    63         info("times: " + start + ", " + end);

    64         ok(start < end, "reflow start time lower than end time");

    65         done();

    66       },

    68       reflowInterruptible: function (start, end) {

    69         if (!interruptible) {

    70           ok(false, "expected uninterruptible reflow");

    71         } else {

    72           ok(true, "observed interruptible reflow");

    73         }

    75         info("times: " + start + ", " + end);

    76         ok(start < end, "reflow start time lower than end time");

    77         done();

    78       },

    80       QueryInterface: function (iid) {

    81         if (Ci.nsIReflowObserver.equals(iid) ||

    82             Ci.nsISupportsWeakReference.equals(iid) ||

    83             Ci.nsISupports.equals(iid))

    84           return this;

    85         throw Cr.NS_ERROR_NO_INTERFACE;

    86       },

    87     };

    89     docShell.addWeakReflowObserver(observer);

    90   }

    92   function whenLoaded(iframe) {

    93     iframe.addEventListener("load", function onLoad() {

    94       iframe.removeEventListener("load", onLoad);

    95       SimpleTest.executeSoon(nextTest);

    96     });

    97   }

    99   function nextTest() {

   100     try {

   101       iter.next();

   102     } catch (e if e instanceof StopIteration) {

   103       SimpleTest.finish();

   104     }

   105   }

   107   ]]>

   108   </script>

   110   <!-- test results are displayed in the html:body -->

   111   <body xmlns="http://www.w3.org/1999/xhtml">

   112   <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=453650"

   113      target="_blank">Mozilla Bug 453650</a>

   114   </body>

   115 </window>

The Tor Browser / file revision