| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>The default scroll-timeline at rule with animation moving from end point</title> |
| <link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-timeline-at-rule"> |
| <link rel="help" href="https://drafts.csswg.org/web-animations/#update-an-animations-finished-state"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/css-animations/support/testcommon.js"></script> |
| <style> |
| @keyframes anim { |
| from { width: 100px; } |
| to { width: 200px; } |
| } |
| |
| @scroll-timeline timeline { |
| source: auto; |
| orientation: auto; |
| scroll-offsets: none; |
| } |
| |
| .fill-vh { |
| width: 100px; |
| height: 100vh; |
| } |
| </style> |
| <body> |
| <div id="log"></div> |
| <script> |
| 'use strict'; |
| |
| test(t => { |
| const div = addDiv(t, { style: 'width: 50px; height: 100px;' }); |
| const filling = addDiv(t, { class: 'fill-vh' }); |
| const scroller = document.scrollingElement; |
| getComputedStyle(document.scrollingElement).height; |
| |
| div.style.animation = 'anim 100s linear timeline'; |
| assert_equals(getComputedStyle(div).width, '100px'); |
| |
| const maxScroll = scroller.scrollHeight - scroller.clientHeight; |
| scroller.scrollTop = maxScroll; |
| assert_equals(getComputedStyle(div).width, '200px'); |
| |
| document.scrollingElement.scrollTop = 0; |
| assert_equals(getComputedStyle(div).width, '100px'); |
| }, 'Test that the scroll animation is still responsive after moving from 100%'); |
| |
| </script> |
| </body> |
