| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <link rel="help" src="https://drafts.csswg.org/scroll-animations-1/#named-range-animation-declaration"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/scroll-animations/scroll-timelines/testcommon.js"></script> |
| <title>The animation-range-* CSS properties for an animation associated with a scroll timeline</title> |
| </head> |
| <style> |
| |
| @keyframes anim { |
| from { opacity: 0 } |
| } |
| |
| #scroller { |
| overflow-y: scroll; |
| width: 100px; |
| height: 100px; |
| } |
| |
| #target { |
| width: 100%; |
| height: 200%; |
| |
| animation: anim auto linear; |
| animation-timeline: scroll(); |
| animation-range-start: 10px; |
| animation-range-end: 80px; |
| } |
| </style> |
| <body> |
| <div id="scroller"> |
| <div id="target"></div> |
| </div> |
| </body> |
| <script> |
| |
| const animation = document.getAnimations()[0]; |
| |
| test(t => { |
| assert_equals(animation.rangeStart.offset.value, 10); |
| assert_equals(animation.rangeStart.offset.unit, "px"); |
| }, "The animation-range-start CSS property maps to Animation's 'rangeStart' property"); |
| |
| test(t => { |
| assert_equals(animation.rangeEnd.offset.value, 80); |
| assert_equals(animation.rangeEnd.offset.unit, "px"); |
| }, "The animation-range-end CSS property maps to Animation's 'rangeEnd' property"); |
| |
| promise_test(async t => { |
| await animation.ready; |
| assert_percents_equal(animation.startTime, 10); |
| }, "The auto-aligned start time accounts for the animation-range-start property"); |
| |
| promise_test(async t => { |
| await animation.ready; |
| assert_percents_equal(animation.effect.getComputedTiming().duration, 70); |
| }, "The effect duration accounts for the animation-range-* properties"); |
| |
| </script> |
