| <!doctype html> |
| <title>autoplay hidden</title> |
| <link rel="author" title="Intel" href="http://www.intel.com"> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/media.html#ready-states"/> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/common/media.js"></script> |
| <div id="log"></div> |
| <script> |
| |
| promise_test(async t => { |
| let video = document.createElement("video"); |
| video.src = getVideoURI("/media/movie_5"); |
| video.autoplay = true; |
| // In Safari and Chrome, the video needs to be muted in order to be paused when |
| // hidden. They decided to do this in order to save resources when a video |
| // goes out of view and isn't expected to make any sound. |
| video.muted = true; |
| video.loop = true; |
| let watcher = new EventWatcher(t, video, ["playing", "pause"]); |
| document.body.appendChild(video); |
| |
| await watcher.wait_for("playing"); |
| assert_false(video.paused, "paused when video is display"); |
| video.hidden = true; |
| |
| await watcher.wait_for("pause"); |
| assert_true(video.paused, "paused when video is hidden"); |
| video.hidden = false; |
| |
| await watcher.wait_for("playing"); |
| assert_false(video.paused, "paused when video is display"); |
| }, "Allow delaying autoplay until video elements become visible"); |
| |
| </script> |
