blob: 17074a6961917c75eebc69e9b3e00ec8b26ab70b [file] [log] [blame]
<!DOCTYPE HTML>
<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api/#dom-propertydescriptor-inherits" />
<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api/#register-a-custom-property" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#outer {
--inherited-length-1: 10px;
--inherited-length-2: var(--non-inherited-length-1);
--inherited-length-3: 30px;
--non-inherited-length-1: 22px;
--non-inherited-length-3: calc(var(--non-inherited-length-2) * 10);
}
#inner {
--inherited-length-3: 15px;
--non-inherited-length-1: 40px;
--non-inherited-length-2: 90px;
}
</style>
<div id=outer><div id=inner></div></div>
<script>
CSS.registerProperty({name: '--inherited-length-1', syntax: '<length>', initialValue: '1px', inherits: true});
CSS.registerProperty({name: '--inherited-length-2', syntax: '<length>', initialValue: '2px', inherits: true});
CSS.registerProperty({name: '--inherited-length-3', syntax: '<length>', initialValue: '3px', inherits: true});
CSS.registerProperty({name: '--non-inherited-length-1', syntax: '<length>', initialValue: '4px'});
CSS.registerProperty({name: '--non-inherited-length-2', syntax: '<length>', initialValue: '5px'});
CSS.registerProperty({name: '--non-inherited-length-3', syntax: '<length>', initialValue: '6px'});
test(function() {
outerComputedStyle = getComputedStyle(outer);
assert_equals(outerComputedStyle.getPropertyValue('--inherited-length-1'), '10px');
assert_equals(outerComputedStyle.getPropertyValue('--inherited-length-2'), '22px');
assert_equals(outerComputedStyle.getPropertyValue('--inherited-length-3'), '30px');
assert_equals(outerComputedStyle.getPropertyValue('--non-inherited-length-1'), '22px');
assert_equals(outerComputedStyle.getPropertyValue('--non-inherited-length-2'), '5px');
assert_equals(outerComputedStyle.getPropertyValue('--non-inherited-length-3'), '50px');
innerComputedStyle = getComputedStyle(inner);
assert_equals(innerComputedStyle.getPropertyValue('--inherited-length-1'), '10px');
assert_equals(innerComputedStyle.getPropertyValue('--inherited-length-2'), '22px');
assert_equals(innerComputedStyle.getPropertyValue('--inherited-length-3'), '15px');
assert_equals(innerComputedStyle.getPropertyValue('--non-inherited-length-1'), '40px');
assert_equals(innerComputedStyle.getPropertyValue('--non-inherited-length-2'), '90px');
assert_equals(innerComputedStyle.getPropertyValue('--non-inherited-length-3'), '6px');
}, "Registered properties are correctly inherited (or not) depending on the inherits flag.");
</script>