| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <link rel="help" src="https://drafts.csswg.org/scroll-animations-1/#named-timeline-range"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/web-animations/testcommon.js"></script> |
| <script src="support/testcommon.js"></script> |
| <script src="/web-animations/resources/keyframe-utils.js"></script> |
| <title>Animation range and delay</title> |
| </head> |
| <style type="text/css"> |
| @keyframes anim { |
| cover 0% { |
| opacity: 0; |
| margin-left: 0px; |
| } |
| cover 100% { |
| opacity: 1; |
| margin-right: 0px; |
| } |
| } |
| #scroller { |
| border: 10px solid lightgray; |
| overflow-y: scroll; |
| overflow-x: hidden; |
| width: 300px; |
| height: 200px; |
| timeline-scope: --sibling; |
| } |
| #sibling { |
| margin-top: 800px; |
| margin-left: 10px; |
| margin-right: 10px; |
| width: 100px; |
| height: 50px; |
| background-color: blue; |
| view-timeline: --sibling block; |
| } |
| #target { |
| margin-bottom: 800px; |
| margin-left: 10px; |
| margin-right: 10px; |
| width: 100px; |
| height: 100px; |
| z-index: -1; |
| background-color: green; |
| animation: anim auto both linear; |
| /* using document timeline by default */ |
| animation-range-start: contain 0%; |
| animation-range-end: contain 100%; |
| view-timeline: --target block; |
| } |
| |
| #target.with-view-timeline { |
| animation-timeline: --target; |
| } |
| #target.with-view-timeline.retarget { |
| animation-timeline: --sibling; |
| } |
| </style> |
| <body> |
| <div id="scroller"> |
| <div id="sibling"></div> |
| <div id="target"></div> |
| </div> |
| </body> |
| <script type="text/javascript"> |
| async function runTest() { |
| promise_test(async t => { |
| await waitForNextFrame(); |
| const anim = document.getAnimations()[0]; |
| await anim.ready; |
| await waitForNextFrame(); |
| |
| // Initially using a document timeline, so the keyframes should be |
| // ignored. |
| let frames = anim.effect.getKeyframes(); |
| let expected = [ |
| { offset: { rangeName: 'cover', offset: CSS.percent(0) }, |
| computedOffset: null, easing: "linear", composite: "auto", |
| marginLeft: "0px", opacity: "0" }, |
| { offset: { rangeName: 'cover', offset: CSS.percent(100) }, |
| computedOffset: null, easing: "linear", composite: "auto", |
| marginRight: "0px", opacity: "1" } |
| ]; |
| assert_frame_lists_equal(frames, expected); |
| // Once a view-timeline is added, the kefyrames must update to reflect |
| // the new keyframe offsets. |
| target.classList.add('with-view-timeline'); |
| assert_equals(getComputedStyle(target).animationTimeline, '--target', |
| 'Switch to view timeline'); |
| await waitForNextFrame(); |
| |
| frames = anim.effect.getKeyframes(); |
| expected = [ |
| { offset: 0, computedOffset: 0, easing: "linear", composite: "replace", |
| marginRight: "10px" }, |
| { offset: 1, computedOffset: 1, easing: "linear", composite: "replace", |
| marginLeft: "10px" }, |
| { offset: { rangeName: 'cover', offset: CSS.percent(0) }, |
| computedOffset: -1, easing: "linear", composite: "auto", |
| marginLeft: "0px", opacity: "0" }, |
| { offset: { rangeName: 'cover', offset: CSS.percent(100) }, |
| computedOffset: 2, easing: "linear", composite: "auto", |
| marginRight: "0px", opacity: "1" }, |
| ]; |
| assert_frame_lists_equal(frames, expected); |
| |
| target.classList.add('retarget'); |
| assert_equals(getComputedStyle(target).animationTimeline, '--sibling', |
| 'Switch to another view timeline'); |
| await waitForNextFrame(); |
| frames = anim.effect.getKeyframes(); |
| expected = [ |
| { offset: 0, computedOffset: 0, easing: "linear", composite: "replace", |
| marginRight: "10px" }, |
| { offset: 1, computedOffset: 1, easing: "linear", composite: "replace", |
| marginLeft: "10px" }, |
| { offset: { rangeName: 'cover', offset: CSS.percent(0) }, |
| computedOffset: -1/3, easing: "linear", |
| composite: "auto", marginLeft: "0px", opacity: "0" }, |
| { offset: { rangeName: 'cover', offset: CSS.percent(100) }, |
| computedOffset: 4/3, easing: "linear", composite: "auto", |
| marginRight: "0px", opacity: "1" }, |
| ]; |
| assert_frame_lists_equal(frames, expected); |
| |
| target.classList.toggle('with-view-timeline'); |
| assert_equals(getComputedStyle(target).animationTimeline, 'auto', |
| 'Switch back to document timeline'); |
| frames = anim.effect.getKeyframes(); |
| expected = [ |
| { offset: { rangeName: 'cover', offset: CSS.percent(0) }, |
| computedOffset: null, easing: "linear", composite: "auto", |
| marginLeft: "0px", opacity: "0" }, |
| { offset: { rangeName: 'cover', offset: CSS.percent(100) }, |
| computedOffset: null, easing: "linear", composite: "auto", |
| marginRight: "0px", opacity: "1" } |
| ]; |
| assert_frame_lists_equal(frames, expected); |
| }, 'getKeyframes with timeline-offsets'); |
| } |
| |
| window.onload = runTest; |
| </script> |