testing/web-platform/tests/fullscreen/api/element-request-fullscreen-same-manual.html

   1 <!DOCTYPE html>
   2 <title>Element#requestFullscreen() on the current fullscreen element</title>
   3 <script src="/resources/testharness.js"></script>
   4 <script src="/resources/testharnessreport.js"></script>
   5 <script src="../trusted-click.js"></script>
   6 <div id="log"></div>
   7 <div id="target"></div>
   8 <script>
   9 async_test(t => {
  10   var target = document.getElementById("target");
  11
  12   document.onfullscreenchange = t.step_func(() => {
  13     assert_equals(document.fullscreenElement, target);
  14
  15     // The next requestFullscreen() should fire no events due to "If element is
  16     // doc's fullscreen element, terminate these subsubsteps."
  17     document.onfullscreenchange = t.unreached_func("fullscreenchange event");
  18
  19     trusted_click(t, () => {
  20       target.requestFullscreen();
  21
  22       // Wait until after the next animation frame.
  23       requestAnimationFrame(t.step_func_done());
  24     }, target);
  25   });
  26   document.onfullscreenerror = t.unreached_func("fullscreenerror event");
  27
  28   trusted_request(t, target);
  29 });
  30 </script>