| <!DOCTYPE html> |
| <html class="reftest-wait"> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <title>Attach a scroll timeline to a reversed animation refTest</title> |
| <link rel="help" src="https://www.w3.org/TR/scroll-animations-1/#scroll-timeline-name"> |
| <link rel="match" href="./animation-update-ref.html?translate=55px&scroll=825"> |
| <script src="/web-animations/testcommon.js"></script> |
| </head> |
| <style type="text/css"> |
| @keyframes anim { |
| from { transform: translateX(100px) } |
| to { transform: translateX(0px) } |
| } |
| #scroller { |
| border: 1px solid black; |
| overflow: hidden; |
| width: 300px; |
| height: 200px; |
| scroll-timeline: --timeline; |
| } |
| #target { |
| margin-bottom: 800px; |
| margin-top: 800px; |
| margin-left: 10px; |
| margin-right: 10px; |
| width: 100px; |
| height: 100px; |
| z-index: -1; |
| background-color: green; |
| animation: anim 10s linear paused; |
| } |
| #target.update { |
| animation-play-state: running; |
| animation-timeline: --timeline; |
| animation-duration: auto; |
| } |
| </style> |
| <body> |
| <div id="scroller"> |
| <div id="target"></div> |
| </div> |
| </body> |
| <script type="text/javascript"> |
| document.documentElement.addEventListener('TestRendered', async () => { |
| runTest(); |
| }, { once: true }); |
| |
| async function runTest() { |
| await waitForCompositorReady(); |
| |
| const anim = target.getAnimations()[0]; |
| anim.playbackRate = -1; |
| await anim.ready; |
| |
| // Scroll to 55% of maximum scroll while paused. |
| scroller.scrollTop = 825; |
| await waitForNextFrame(); |
| |
| target.classList.add('update'); |
| await waitForNextFrame(); |
| |
| // Make sure change to animation range was properly picked up. |
| document.documentElement.classList.remove("reftest-wait"); |
| } |
| </script> |
| </body> |
| </html> |
