third_party/WebKit/LayoutTests/screen_orientation/screenorientation-detached-notify-no-crash.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <script src="../resources/testharness.js"></script>
   5 <script src="../resources/testharnessreport.js"></script>
   6 <iframe id=testIframe></iframe>
   7 <script>
   8 var notifyTest = async_test("Test that async event dispatch to detached frame is gracefully handled.");
   9
  10 function changeOrientationAndDetach() {
  11     // Dispatch an orientationchange event; this is handled asynchronously,
  12     // queueing a task/timer to do the actual dispatch.
  13     window.testRunner.setMockScreenOrientation('portrait-secondary');
  14
  15     // Detach the iframe while the event dispatch is in-flight. If
  16     // the screen orientation controller is finalized during the
  17     // detach, the async event dispatch just after will be treated
  18     // like a no-op -- there's no controller to handle the dispatch.
  19     document.body.removeChild(testIframe);
  20     setTimeout(function () { notifyTest.done(); }, 0);
  21 }
  22 notifyTest.step(function () {
  23     // Force the creation of a ScreenOrientation and register it
  24     // with the controller, so that orientationchange events are sent.
  25     var currentType = window.screen.orientation.type;
  26     testIframe.src = "resources/iframe-listen-orientation-change-detach.html";
  27 });
  28 </script>
  29 </body>
  30 </html>