| |
| <!DOCTYPE html> |
| <html class="reftest-wait"> |
| <meta charset="UTF-8"> |
| <title>reverse running animation</title> |
| <link rel="match" href="reverse-running-animation-ref.html"> |
| <script src="/common/reftest-wait.js"></script> |
| <script src="../../testcommon.js"></script> |
| <style> |
| #box { |
| background: green; |
| height: 40px; |
| width: 40px; |
| } |
| </style> |
| <body> |
| <div id="box"></div> |
| <p id="notes"> |
| This test animates the box color from green to red and reverses the play |
| direction shortly after the midpoint. If the box remains red, the test |
| failed. |
| </p> |
| </body> |
| <script> |
| onload = async function() { |
| const box = document.getElementById('box'); |
| const duration = 10000; |
| const anim = |
| box.animate({ bacground: [ 'green', 'red' ] }, |
| { duration: duration, easing: 'steps(2, jump-none)' }); |
| anim.currentTime = duration / 2; |
| anim.ready.then(() => { |
| const startTime = anim.timeline.currentTime; |
| waitForAnimationFrames(2).then(() => { |
| anim.reverse(); |
| anim.ready.then(() => { |
| const reversalTime = anim.timeline.currentTime; |
| const forwardPlayingTime = reversalTime - startTime; |
| const checkIfDone = () => { |
| if (anim.timeline.currentTime - reversalTime > forwardPlayingTime) |
| takeScreenshot(); |
| else |
| requestAnimationFrame(checkIfDone); |
| }; |
| requestAnimationFrame(checkIfDone); |
| }); |
| }); |
| }); |
| }; |
| </script> |
