The Tor Browser: layout/style/test/test_visited

     1 <!DOCTYPE HTML>

     2 <html>

     3 <!--

     4 https://bugzilla.mozilla.org/show_bug.cgi?id=147777

     5 -->

     6 <head>

     7   <title>Test for visited link coloring pref Bug 147777</title>

     8   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>

     9   <script type="application/javascript" src="/tests/SimpleTest/WindowSnapshot.js"></script>

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

    11   <style type="text/css">

    13   :link { float: left; }

    15   :visited { float: right; }

    17   </style>

    18 </head>

    19 <body>

    20 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=147777">Mozilla Bug 147777</a>

    21 <iframe id="iframe" src="visited-pref-iframe.html" style="width: 10em; height: 5em"></iframe>

    22 <pre id="test">

    23 <script type="application/javascript">

    25 /** Test for Bug 147777 **/

    27 function reinsert_node(e) {

    28   var sib = e.nextSibling;

    29   var par = e.parentNode;

    30   par.removeChild(e);

    31   par.insertBefore(e, sib);

    32 }

    34 function get_pref()

    35 {

    36     return SpecialPowers.getBoolPref("layout.css.visited_links_enabled");

    37 }

    39 function set_pref(val)

    40 {

    41     SpecialPowers.setBoolPref("layout.css.visited_links_enabled", val);

    42 }

    44 function snapshotsEqual(snap1, snap2)

    45 {

    46   return compareSnapshots(snap1, snap2, true)[0];

    47 }

    49 SimpleTest.waitForExplicitFinish();

    50 window.addEventListener("load", step1, false);

    52 var iframe, subdoc, subwin;

    53 var link;

    54 var start;

    55 var timeout;

    57 var unvisref; // reference image for unvisited style

    59 function step1()

    60 {

    61   is(get_pref(), true, "pref defaults to true");

    63   iframe = document.getElementById("iframe");

    64   subdoc = iframe.contentDocument;

    65   subwin = iframe.contentWindow;

    66   link = subdoc.getElementById("link");

    68   unvisref = snapshotWindow(subwin, false);

    70   // Now set the href of the link to a location that's actually visited.

    71   link.href = window.location;

    73   start = Date.now();

    75   // And wait for the link to get restyled when the history lets us

    76   // know it is (asynchronously).

    77   setTimeout(poll_for_visited_style, 100);

    78 }

    80 function poll_for_visited_style()

    81 {

    82   var snapshot = snapshotWindow(subwin, false);

    83   if (snapshotsEqual(unvisref, snapshot)) {

    84     // hasn't been styled yet

    85     setTimeout(poll_for_visited_style, 100);

    87     // If it never gets styled correctly, this test will fail because

    88     // this loop will never complete.

    89   } else {

    90     var end = Date.now();

    91     timeout = 3 * Math.max(end - start, 300);

    92     step2();

    93   }

    94 }

    96 function step2()

    97 {

    98   set_pref(false);

   100   // we don't handle dynamic changes of this pref; it only takes effect

   101   // when a new page loads

   102   reinsert_node(link);

   104   setTimeout(step3, timeout);

   105 }

   107 function step3()

   108 {

   109   var snapshot = snapshotWindow(subwin, false);

   110   ok(snapshotsEqual(unvisref, snapshot),

   111      ":visited selector does not apply given false preference");

   113   // Set the pref back for the rest of the tests.

   114   set_pref(true);

   116   SimpleTest.finish();

   117 }

   119 </script>

   120 </pre>

   121 </body>

   122 </html>

The Tor Browser / file revision