| <!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> |
| #scrollers { |
| overflow: hidden; |
| height: 0px; |
| } |
| #scrollers > div { |
| overflow: scroll; |
| width: 100px; |
| height: 100px; |
| } |
| #scrollers > div > div { |
| height: 200px; |
| } |
| @keyframes expand { |
| from { width: 100px; } |
| to { width: 200px; } |
| } |
| @scroll-timeline timeline1 { |
| source: selector(#scroller1); |
| orientation: auto; |
| time-range: 1e10s; |
| start: 0px; |
| end: 100px; |
| } |
| @scroll-timeline timeline2 { |
| source: selector(#scroller2); |
| orientation: auto; |
| time-range: 1e10s; |
| start: 0px; |
| end: 100px; |
| } |
| @scroll-timeline timeline3 { |
| source: selector(#scroller3); |
| orientation: auto; |
| time-range: 1e10s; |
| start: 0px; |
| end: 100px; |
| } |
| #element { |
| width: 0px; |
| height: 20px; |
| animation-name: expand; |
| animation-duration: 1e10s; |
| 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> |
| <div id=scrollers> |
| <div id=scroller1><div></div></div> |
| <div id=scroller2><div></div></div> |
| <div id=scroller3><div></div></div> |
| <div id=scroller4><div></div></div> |
| </div> |
| <div id=container></div> |
| <script> |
| // Force layout of scrollers. |
| scroller1.offsetTop; |
| scroller2.offsetTop; |
| scroller3.offsetTop; |
| scroller4.offsetTop; |
| |
| 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 { |
| 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 () => { |
| await waitForNextFrame(); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| element.style = 'animation-timeline:timeline2'; |
| assert_equals(getComputedStyle(element).width, '140px'); |
| }, 'Changing animation-timeline changes the timeline (sanity check)'); |
| |
| test_animation_timeline(async () => { |
| await waitForNextFrame(); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| // Set a (non-CSS) ScrollTimeline on the CSSAnimation. |
| let timeline4 = new ScrollTimeline({ |
| scrollSource: scroller4, |
| timeRange: 1e13, |
| startScrollOffset: CSS.px(0), |
| endScrollOffset: CSS.px(100) |
| }); |
| |
| element.getAnimations()[0].timeline = timeline4; |
| assert_equals(getComputedStyle(element).width, '180px'); |
| |
| // Changing the animation-timeline property should have no effect. |
| element.style = 'animation-timeline:timeline2'; |
| assert_equals(getComputedStyle(element).width, '180px'); |
| }, 'animation-timeline ignored after setting timeline with JS (ScrollTimeline from JS)'); |
| |
| test_animation_timeline(async () => { |
| await waitForNextFrame(); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| let animation = element.getAnimations()[0]; |
| let timeline1 = animation.timeline; |
| |
| element.style = 'animation-timeline:timeline2'; |
| assert_equals(getComputedStyle(element).width, '140px'); |
| |
| animation.timeline = timeline1; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| |
| // Should have no effect. |
| element.style = 'animation-timeline:timeline3'; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| }, 'animation-timeline ignored after setting timeline with JS (ScrollTimeline from CSS)'); |
| |
| test_animation_timeline(async () => { |
| await waitForNextFrame(); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| element.getAnimations()[0].timeline = document.timeline; |
| |
| // (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'; |
| assert_equals(getComputedStyle(element).width, '120px'); |
| }, 'animation-timeline ignored after setting timeline with JS (document timeline)'); |
| |
| test_animation_timeline(async () => { |
| await waitForNextFrame(); |
| assert_equals(getComputedStyle(element).width, '120px'); |
| element.getAnimations()[0].timeline = null; |
| assert_equals(getComputedStyle(element).width, '0px'); |
| |
| // Changing the animation-timeline property should have no effect. |
| element.style = 'animation-timeline:timeline2'; |
| assert_equals(getComputedStyle(element).width, '0px'); |
| }, 'animation-timeline ignored after setting timeline with JS (null)'); |
| |
| </script> |
