The Tor Browser: dom/tests/mochitest/general/test

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 <?xml version="1.0"?>

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

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

     4 <!--

     5   Tests for mozInnerScreenX/Y properties

     6   -->

     7 <window title="Test mozInnerScreenX/Y Properties"

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

     9   <script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>

    11   <!-- test resuls are displayed in the html:body -->

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

    13         style="height: 400px; position:relative; overflow: auto;">

    14     <iframe id="f"

    15             style="position:absolute; left:100px;

    16                    top:200px; width:200px; height:200px; border:none;"></iframe>

    17   </body>

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

    20   <script type="application/javascript"><![CDATA[

    22 function isRounded(a, b, msg) {

    23   ok(Math.round(a) == Math.round(b),

    24      msg + " (rounded), got " + a + ", expected " + b);

    25 }

    27 function doTests()

    28 {

    29   var readable = false;

    30   try

    31   {

    32     mozScreenPixelsPerCSSPixel;

    33     readable = true;

    34   }

    35   catch(ex) { }

    36   ok(!readable, "window pixels per css pixel shouldn't be readable to content");

    38   var domWindowUtils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)

    39                            .getInterface(Components.interfaces.nsIDOMWindowUtils);

    40   var devPxPerCSSPx = domWindowUtils.screenPixelsPerCSSPixel;

    42   is(window.devicePixelRatio, devPxPerCSSPx, "window.devicePixelRatio");

    44   var windowBO = document.documentElement.boxObject;

    45   isRounded(window.mozInnerScreenX*devPxPerCSSPx, windowBO.screenX,

    46             "window screen X");

    47   isRounded(window.mozInnerScreenY*devPxPerCSSPx, windowBO.screenY,

    48             "window screen Y");

    50   var f = document.getElementById("f");

    51   var fBounds = f.getBoundingClientRect();

    53   const CI = Components.interfaces;

    54   var fshell = f.contentWindow.QueryInterface(CI.nsIInterfaceRequestor).getInterface(CI.nsIWebNavigation).QueryInterface(CI.nsIDocShell);

    55   var fmudv = fshell.contentViewer.QueryInterface(CI.nsIMarkupDocumentViewer);

    57   isRounded(f.contentWindow.mozInnerScreenX,

    58             window.mozInnerScreenX + fBounds.left,

    59             "frame screen X");

    60   isRounded(f.contentWindow.mozInnerScreenY,

    61             window.mozInnerScreenY + fBounds.top,

    62             "frame screen Y");

    64   fmudv.fullZoom *= 2;

    65   var frameDomWindowUtils = f.contentWindow.QueryInterface(Components.interfaces.nsIInterfaceRequestor)

    66                               .getInterface(Components.interfaces.nsIDOMWindowUtils);

    67   is(frameDomWindowUtils.screenPixelsPerCSSPixel, 2*devPxPerCSSPx,

    68      "frame screen pixels per CSS pixel");

    70   is(f.contentWindow.devicePixelRatio, 2*devPxPerCSSPx, "frame devicePixelRatio");

    72   isRounded(f.contentWindow.mozInnerScreenX*2,

    73             window.mozInnerScreenX + fBounds.left,

    74             "zoomed frame screen X");

    75   isRounded(f.contentWindow.mozInnerScreenY*2,

    76             window.mozInnerScreenY + fBounds.top,

    77             "zoomed frame screen Y");

    78   fmudv.fullZoom = 1.0;

    80   SimpleTest.finish();

    81 }

    83 addLoadEvent(doTests);

    84 SimpleTest.waitForExplicitFinish();

    86 ]]>

    87 </script>

    89 </window>

The Tor Browser / file revision

dom/tests/mochitest/general/test_innerScreen.xul@97036ab72558

dom/tests/mochitest/general/test_innerScreen.xul