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<!DOCTYPE html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Animation with neutral keyframe is responsive to change in underlying style</title>
<link rel="help" href="https://www.w3.org/TR/web-animations-1/#the-effect-value-of-a-keyframe-animation-effect">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="responsive-test.js"></script>
</head>
<body></body>
<script type="text/javascript">
promise_test(async t => {
const responsiveTest =
createResponsiveTest(t, {
property: 'backgroundPosition',
to: '100px 100px'
});
await responsiveTest.ready;
responsiveTest.underlyingValue = '20px 60px';
responsiveTest.assertResponsive([
{at: 0.25, is: '40px 70px'},
{at: 0.75, is: '80px 90px'},
]);
responsiveTest.underlyingValue = '60px 20px';
responsiveTest.assertResponsive([
{at: 0.25, is: '70px 40px'},
{at: 0.75, is: '90px 80px'},
]);
}, 'Animating from a neutral keyframe when the underlying style is ' +
'explicitly set');
promise_test(async t => {
const responsiveTest =
createResponsiveTest(t, {
property: 'backgroundPosition',
from: 'inherit',
to: '100px 100px'
});
await responsiveTest.ready;
responsiveTest.inheritedValue = '20px 60px';
responsiveTest.assertResponsive([
{at: 0.25, is: '40px 70px'},
{at: 0.75, is: '80px 90px'},
]);
responsiveTest.inheritedValue = '60px 20px';
responsiveTest.assertResponsive([
{at: 0.25, is: '70px 40px'},
{at: 0.75, is: '90px 80px'},
]);
}, 'Animating from a neutral keyframe when the underlying style is ' +
'inherited from the parent');
</script>
|
