third_party/WebKit/LayoutTests/fast/events/page-visibility-iframe-delete-test.html

   1 <html>
   2 <body onload="startTest()">
   3
   4 <script src="../../resources/js-test.js"></script>
   5
   6 <script>
   7
   8 description("This test checks that the page visibility event propagation does not crash the browser when frames are added / deleted.");
   9
  10 var jsTestIsAsync = true;
  11
  12 var frame1, frame2, frame3, frame4, frame5, subframe1, subFrame2, subFrame3;
  13
  14 var docsLoaded = 0;
  15
  16 function startTest() {
  17     ++docsLoaded;
  18     if (docsLoaded < 8) {
  19       return;
  20    }
  21
  22     debug("Loaded all frames.");
  23
  24     frame1 = document.getElementById("topFrame1");
  25     frame2 = document.getElementById("topFrame2");
  26     frame3 = document.getElementById("topFrame3");
  27     frame4 = document.getElementById("topFrame4");
  28     subFrame1 = frame3.contentDocument.getElementById("subIframe1");
  29     subFrame2 = frame3.contentDocument.getElementById("subIframe2");
  30
  31     document.addEventListener(
  32         "visibilitychange", onMainPageVisibilityChange, false);
  33     frame2.contentDocument.addEventListener(
  34         "visibilitychange", onFrame2VisibilityChange, false);
  35     // Change the visibility of the current page to invisible.
  36     if (window.testRunner)
  37         testRunner.setPageVisibility("hidden");
  38     finishJSTest();
  39 }
  40
  41 function onMainPageVisibilityChange() {
  42     debug("Visibility of main document changed.");
  43     // Delete frame 4.
  44     document.body.removeChild(frame4);
  45
  46     // Delete subframe 2.
  47     frame3.contentDocument.body.removeChild(subFrame2);
  48
  49     // Add a new frame to top level.
  50     frame5 = document.createElement("iframe");
  51     frame5.src = '';
  52     document.body.appendChild(frame5);
  53
  54     // Add a new frame to frame2.
  55     subFrame3 = frame2.contentDocument.createElement("iframe");
  56     subFrame3.src = '';
  57     frame2.contentDocument.body.appendChild(subFrame3);
  58 }
  59
  60 function onFrame2VisibilityChange() {
  61     debug("Visibility of sub frame 2 changed.");
  62     // Delete frame 1.
  63     document.body.removeChild(frame1);
  64 }
  65
  66 </script>
  67
  68
  69 <iframe id="topFrame1" onload="startTest()" ></iframe>
  70 <iframe id="topFrame2" onload="startTest()" ></iframe>
  71 <iframe id="topFrame3" onload="startTest()" src="resources/page-visibility-iframe-delete-test-frame.html"></iframe>
  72 <iframe id="topFrame4" onload="startTest()" ></iframe>
  73 </body>
  74 </html>