doubletap-to-jump-backwards.html | Explore in Territory

<!DOCTYPE html>
<html>
<title>Test that player will jump backwards 10 seconds if double tapped on the left hand side.</title>
<script src="../../resources/gesture-util.js"></script>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../media-controls.js"></script>
<video controls width=400 src="../content/60_sec_video.webm"></video>
<script>
async_test(t => {
  const video = document.querySelector('video');
  let time = 0;

  video.addEventListener('canplaythrough', t.step_func(() => {
    // Seek the video to the middle
    video.currentTime = 30;
  }), { once: true });

  video.ontimeupdate = t.step_func(() => {
    // The time should never reach 25 seconds as we skipped over it
    assert_not_equals(Math.round(video.currentTime), 25);
  });

  let double_tap_gesture;

  video.onseeked = t.step_func(() => {
    const currentTime = Math.round(video.currentTime);

    if (currentTime == 30) {
      // Double tap on the left side.
      time = currentTime;
      const coordinates = videoLeftEdgeCoordinates(video);
      double_tap_gesture = doubleTapAt(coordinates[0], coordinates[1]);
    } else if (time > 0) {
      // Check the video went back 10 seconds
      assert_greater_than(time, 0);
      assert_equals(currentTime, time - 10);
      double_tap_gesture.then(t.step_func_done());
    }
  });

  video.load();
});
</script>
</html>
chromium/third_party/blink/web_tests/media/controls/doubletap-to-jump-backwards.html
