layout/style/test/test_visited_pref.html

   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="/MochiKit/MochiKit.js"></script>
   9   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  11   <style type="text/css">
  12
  13   :link { float: left; }
  14
  15   :visited { float: right; }
  16
  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 <p id="display"><a id="mylink" href="test_visited_pref.html">link to this page</a></p>
  22 <pre id="test">
  23 <script type="application/javascript">
  24
  25 /** Test for Bug 147777 **/
  26
  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 }
  33
  34 netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  35 var prefService = Components.classes["@mozilla.org/preferences-service;1"].
  36                     getService(Components.interfaces.nsIPrefService);
  37 var dispBranch = prefService.getBranch("layout.css.");
  38
  39 function get_pref()
  40 {
  41     netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  42     return dispBranch.getBoolPref("visited_links_enabled");
  43 }
  44
  45 function set_pref(val)
  46 {
  47     netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  48     dispBranch.setBoolPref("visited_links_enabled", val);
  49 }
  50
  51 is(get_pref(), true, "pref defaults to true");
  52
  53 var link = document.getElementById("mylink");
  54 var cs = getComputedStyle(link, "");
  55 is(cs.cssFloat, "right", ":visited selector applies given default preferences");
  56
  57 set_pref(false);
  58
  59 // we don't handle dynamic changes of this pref; it only takes effect
  60 // when a new page loads
  61 reinsert_node(link);
  62
  63 is(cs.cssFloat, "left", ":visited selector does not apply given false preference");
  64
  65 // Set the pref back for the rest of the tests.
  66 set_pref(true);
  67
  68 </script>
  69 </pre>
  70 </body>
  71 </html>