| <!DOCTYPE html> |
| <link rel="help" src="https://github.com/w3c/csswg-drafts/pull/5666"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/web-animations/testcommon.js"></script> |
| <style> |
| main { |
| overflow: hidden; |
| height: 0px; |
| timeline-scope: --timeline1, --timeline2, --timeline3; |
| } |
| .scroller { |
| overflow: hidden; |
| width: 100px; |
| height: 100px; |
| } |
| .scroller > div { |
| height: 200px; |
| } |
| @keyframes expand { |
| from { width: 100px; } |
| to { width: 200px; } |
| } |
| #scroller1 { |
| scroll-timeline-name: --timeline1; |
| } |
| #scroller2 { |
| scroll-timeline-name: --timeline2; |
| } |
| #scroller3 { |
| scroll-timeline-name: --timeline3; |
| } |
| #element { |
| width: 0px; |
| height: 20px; |
| animation-name: expand; |
| animation-duration: 1000s; |
| animation-timing-function: linear; |
| animation-timeline: --timeline1; |
| } |
| /* Ensure stable expectations if feature is not supported */ |
| @supports not (animation-timeline:--foo) { |
| #element { animation-play-state: paused; } |
| } |
| </style> |
| <main> |
| <div class=scroller id=scroller1><div></div></div> |
| <div class=scroller id=scroller2><div></div></div> |
| <div class=scroller id=scroller3><div></div></div> |
| <div class=scroller id=scroller4><div></div></div> |
| <div id=container></div> |
| </main> |
| <script> |
| scroller1.scrollTop = 20; |
| scroller2.scrollTop = 40; |
| scroller3.scrollTop = 60; |
| scroller4.scrollTop = 80; |
| |
| // Create #element in #container, run |func|, then clean up afterwards. |
| function test_animation_timeline(func, description) { |
| promise_test(async () => { |
| try { |
| await runAndWaitForFrameUpdate(() => { |
| let element = document.createElement('element'); |
| element.setAttribute('id', 'element'); |
| container.append(element); |
| }); |
| await func(); |
| } finally { |
| while (container.firstChild) |
| container.firstChild.remove(); |
| } |
| }, description); |
| } |
| |
| test_animation_timeline(async () => { |
| let animation = element.getAnimations()[0]; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| element.style = 'animation-timeline:--timeline2'; |
| await animation.ready; |
| |
| assert_equals(getComputedStyle(element).width, '140px'); |
| }, 'Changing animation-timeline changes the timeline (sanity check)'); |
| |
| test_animation_timeline(async () => { |
| let animation = element.getAnimations()[0]; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| // Set a (non-CSS) ScrollTimeline on the CSSAnimation. |
| let timeline4 = new ScrollTimeline({ source: scroller4 }); |
| |
| animation.timeline = timeline4; |
| await animation.ready; |
| assert_equals(getComputedStyle(element).width, '180px'); |
| |
| // Changing the animation-timeline property should have no effect. |
| element.style = 'animation-timeline:--timeline2'; |
| await animation.ready; |
| |
| assert_equals(getComputedStyle(element).width, '180px'); |
| }, 'animation-timeline ignored after setting timeline with JS ' + |
| '(ScrollTimeline from JS)'); |
| |
| test_animation_timeline(async () => { |
| let animation = element.getAnimations()[0]; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| let timeline1 = animation.timeline; |
| element.style = 'animation-timeline:--timeline2'; |
| await animation.ready; |
| assert_equals(getComputedStyle(element).width, '140px'); |
| |
| animation.timeline = timeline1; |
| await animation.ready; |
| |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| // Should have no effect. |
| element.style = 'animation-timeline:--timeline3'; |
| await animation.ready; |
| |
| assert_equals(getComputedStyle(element).width, '120px'); |
| }, 'animation-timeline ignored after setting timeline with JS ' + |
| '(ScrollTimeline from CSS)'); |
| |
| test_animation_timeline(async () => { |
| let animation = element.getAnimations()[0]; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| animation.timeline = document.timeline; |
| await animation.ready; |
| |
| // (The animation continues from where the previous timeline left it). |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| // Changing the animation-timeline property should have no effect. |
| element.style = 'animation-timeline:--timeline2'; |
| await animation.ready; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| }, 'animation-timeline ignored after setting timeline with JS (document timeline)'); |
| |
| test_animation_timeline(async () => { |
| let animation = element.getAnimations()[0]; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| animation.timeline = null; |
| assert_false(animation.pending); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| // Changing the animation-timeline property should have no effect. |
| element.style = 'animation-timeline:--timeline2'; |
| assert_false(animation.pending); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| }, 'animation-timeline ignored after setting timeline with JS (null)'); |
| </script> |
