| <!DOCTYPE html> |
| <title>Test behaviour of autoplay muted videos with regards to visibility</title> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| window.internals.settings.setAutoplayPolicy('user-gesture-required'); |
| window.internals.runtimeFlags.autoplayMutedVideosEnabled = true; |
| |
| var gCycleCount = 0; |
| |
| var video; |
| |
| function runStepsWhenInvisible(t) { |
| assert_true(video.paused); |
| video.style.top = '0px'; |
| |
| video.onplay = null; |
| video.onpause = t.unreached_func(); |
| video.addEventListener('play', t.step_func(_ => runStepsWhenVisible(t)), { once: true }); |
| } |
| |
| function runStepsWhenVisible(t) { |
| assert_false(video.paused); |
| |
| if (gCycleCount++ >= 3) { |
| t.done(); |
| return; |
| } |
| video.style.top = '-10000px'; |
| |
| video.onpause = null; |
| video.onplay = t.unreached_func(); |
| video.addEventListener('pause', t.step_func(_ => runStepsWhenInvisible(t)), { once: true }); |
| } |
| |
| async_test(function(t) { |
| // Create a video off screen. |
| { |
| video = document.createElement('video'); |
| video.src = 'content/test.ogv'; |
| video.muted = true; |
| video.autoplay = true; |
| video.loop = true; |
| video.style.position = 'absolute'; |
| video.style.top = '-10000px'; |
| document.body.appendChild(video); |
| } |
| |
| video.addEventListener('canplay', t.step_func(_ => runStepsWhenInvisible(t)), { once : true }); |
| }); |
| </script> |