| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| |
| #target { |
| width: 100px; |
| height: 100px; |
| background-color: black; |
| } |
| |
| </style> |
| </head> |
| <body> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <div id="target"></div> |
| <script> |
| |
| function waitNFrames(numberOfFrames, continuation) |
| { |
| let elapsedFrames = 0; |
| (function rAFCallback() { |
| if (elapsedFrames++ >= numberOfFrames) |
| continuation(); |
| else |
| requestAnimationFrame(rAFCallback); |
| })(); |
| } |
| |
| async_test(t => { |
| const keyframes = { transform: ["translateX(50px)", "translateX(100px)"] }; |
| const timing = { duration: 50, fill: "forwards" }; |
| document.getElementById("target").animate(keyframes, timing).addEventListener("finish", event => { |
| const numberOfTimelineInvalidationsWhenFinished = internals.numberOfAnimationTimelineInvalidations(); |
| waitNFrames(3, () => { |
| assert_equals(internals.numberOfAnimationTimelineInvalidations(), numberOfTimelineInvalidationsWhenFinished + 1); |
| t.done(); |
| }); |
| }); |
| }, "There should not be more than one update made to the timeline after a forward-filling accelerated animation completes."); |
| |
| </script> |
| </body> |
| </html> |
