layout/style/test/test_visited_image_loading.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=557287
   5 -->
   6 <head>
   7   <title>Test for Bug 557287</title>
   8   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   9   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  10 </head>
  11 <body>
  12 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=557287">Mozilla Bug 147777</a>
  13 <pre id="test">
  14 <script type="application/ecmascript" src="visited_image_loading.sjs?reset"></script>
  15 <script type="application/javascript">
  16
  17 /** Test for Bug 557287 **/
  18
  19 SimpleTest.waitForExplicitFinish();
  20 SimpleTest.requestFlakyTimeout("untriaged");
  21
  22 var subdoc, subwin;
  23
  24 window.addEventListener("load", run);
  25
  26 function run()
  27 {
  28   subwin = window.open("visited_image_loading_frame.html", "_blank");
  29   subwin.addEventListener("load", function() {
  30     subdoc = subwin.document;
  31     setTimeout(check_link_styled, 50);
  32   });
  33 }
  34
  35 function visitedDependentComputedStyle(win, elem, property) {
  36   return SpecialPowers.DOMWindowUtils
  37            .getVisitedDependentComputedStyle(elem, "", property);
  38 }
  39
  40 function check_link_styled()
  41 {
  42   var vislink = subdoc.getElementById("visited");
  43   var bgcolor =
  44     visitedDependentComputedStyle(subwin, vislink, "background-color");
  45   if (bgcolor == "rgb(128, 0, 128)") {
  46     // We've done our async :visited processing and restyled accordingly.
  47     // Make sure that we've actually painted before finishing the test.
  48     subwin.addEventListener("MozAfterPaint", paint_listener);
  49     // do something that forces a paint
  50     subdoc.body.appendChild(subdoc.createTextNode("new text node"));
  51   } else {
  52     setTimeout(check_link_styled, 50);
  53   }
  54 }
  55
  56 function paint_listener(event)
  57 {
  58   subwin.removeEventListener("MozAfterPaint", paint_listener);
  59   var s = document.createElement("script");
  60   s.src = "visited_image_loading.sjs?waitforresult";
  61   document.body.appendChild(s);
  62   subwin.close();
  63 }
  64
  65 </script>
  66 </pre>
  67 </body>
  68 </html>