| <!DOCTYPE html> |
| <title>Verify that effect without target is supported</title> |
| <link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/web-animations/testcommon.js"></script> |
| <script src="common.js"></script> |
| |
| <div id="box"></div> |
| |
| <script> |
| |
| setup(setupAndRegisterTests, {explicit_done: true}); |
| |
| async function setupAndRegisterTests() { |
| await registerPassthroughAnimator(); |
| |
| promise_test(async t => { |
| const effect = new KeyframeEffect(null, |
| { transform: ['translateY(100px)', 'translateY(200px)'] }, |
| { duration: Infinity, iterations: 1 } |
| ); |
| const animation = new WorkletAnimation('passthrough', effect); |
| animation.play(); |
| |
| // Allow one async animation frame to pass so that animation is running. |
| await waitForAsyncAnimationFrames(1); |
| assert_equals(animation.playState, "running"); |
| // Allow time to advance so that we have a non-zero current time. |
| await waitForDocumentTimelineAdvance(); |
| const t0 = document.timeline.currentTime; |
| assert_greater_than(animation.currentTime, 0); |
| assert_times_equal(animation.currentTime, (t0 - animation.startTime)); |
| assert_equals(animation.playState, "running"); |
| |
| animation.cancel(); |
| }, 'Animating effect with no target should work.'); |
| |
| promise_test(async t => { |
| const effect = new KeyframeEffect(document.getElementById('box'), |
| { transform: ['translateY(100px)', 'translateY(200px)'] }, |
| { duration: Infinity, iterations: 1 } |
| ); |
| |
| const animation = new WorkletAnimation('passthrough', effect); |
| animation.play(); |
| |
| // Allow one async animation frame to pass so that animation is running. |
| await waitForAsyncAnimationFrames(1); |
| assert_equals(animation.playState, "running"); |
| // Allow time to advance so that we have a non-zero current time. |
| await waitForDocumentTimelineAdvance(); |
| const t0 = document.timeline.currentTime; |
| assert_greater_than(animation.currentTime, 0); |
| assert_times_equal(animation.currentTime, (t0 - animation.startTime)); |
| assert_equals(animation.playState, "running"); |
| |
| await waitForDocumentTimelineAdvance(); |
| animation.effect.target = null; |
| const t1 = document.timeline.currentTime; |
| assert_times_equal(animation.currentTime, (t1 - animation.startTime)); |
| assert_equals(animation.playState, "running"); |
| |
| await waitForDocumentTimelineAdvance(); |
| animation.effect.target = document.getElementById('box'); |
| const t2 = document.timeline.currentTime; |
| assert_times_equal(animation.currentTime, (t2 - animation.startTime)); |
| assert_equals(animation.playState, "running"); |
| |
| animation.cancel(); |
| }, 'The existence of a target does not affect the animation.'); |
| |
| done(); |
| } |
| </script> |