| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <div id="target"></div> |
| <script> |
| setup(() => { |
| for (let name of ['--a', '--b']) { |
| CSS.registerProperty({ |
| name, |
| syntax: '<number>', |
| initialValue: '0', |
| inherits: false, |
| }); |
| } |
| }); |
| |
| test(() => { |
| let a = target.animate({'--a': ['100', 'var(--b)']}, 100); |
| let b = target.animate({'--b': ['200', '200']}, 100); |
| |
| a.currentTime = 50; |
| assert_equals(getComputedStyle(target).getPropertyValue('--a'), '150', '--a animating towards --b'); |
| assert_equals(getComputedStyle(target).getPropertyValue('--b'), '200', '--b stationary at 200'); |
| |
| a.cancel(); |
| b.cancel(); |
| |
| a = target.animate({'--a': ['200', '200']}, 100); |
| b = target.animate({'--b': ['100', 'var(--a)']}, 100); |
| |
| b.currentTime = 50; |
| assert_equals(getComputedStyle(target).getPropertyValue('--a'), '200', '--a stationary at 200'); |
| assert_equals(getComputedStyle(target).getPropertyValue('--b'), '150', '--b animating towards --a'); |
| }, 'The resolution order of var() references in animated registered custom properties is independent of the lexicographical ordering of property names.'); |
| </script> |
