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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/motion/animation/offset-distance-interpolation.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>offset-distance interpolation</title>
<link rel="author" title="Eric Willigers" href="mailto:ericwilligers@chromium.org">
<meta name="assert" content="offset-distance supports animation.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
</head>
<style>
.parent {
offset-distance: 30px;
}
.target {
width: 10px;
height: 10px;
background-color: black;
offset-path: path("M0 0H 400");
offset-distance: 10px;
}
.expected {
background-color: green;
}
</style>
<body>
<script>
test_interpolation({
property: 'offset-distance',
from: '-30px',
to: '50px',
}, [
{at: -1, expect: '-110px'},
{at: 0, expect: '-30px'},
{at: 0.125, expect: '-20px'},
{at: 0.875, expect: '40px'},
{at: 1, expect: '50px'},
{at: 2, expect: '130px'}
]);
test_interpolation({
property: 'offset-distance',
from: '20%',
to: '100%',
}, [
{at: -1, expect: '-60%'},
{at: 0, expect: '20%'},
{at: 0.125, expect: '30%'},
{at: 0.875, expect: '90%'},
{at: 1, expect: '100%'},
{at: 2, expect: '180%'}
]);
test_interpolation({
property: 'offset-distance',
from: 'calc(20% - 30px)',
to: 'calc(50px + 100%)',
}, [
{at: -1, expect: 'calc(-110px + -60%)'},
{at: 0, expect: 'calc(20% - 30px)'},
{at: 0.125, expect: 'calc(-20px + 30%)'},
{at: 0.875, expect: 'calc(40px + 90%)'},
{at: 1, expect: 'calc(50px + 100%)'},
{at: 2, expect: 'calc(130px + 180%)'}
]);
test_interpolation({
property: 'offset-distance',
from: neutralKeyframe,
to: '20px',
}, [
{at: -0.3, expect: '7px'},
{at: 0, expect: '10px'},
{at: 0.3, expect: '13px'},
{at: 0.6, expect: '16px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '25px'},
]);
test_interpolation({
property: 'offset-distance',
from: 'initial',
to: '20px',
}, [
{at: -0.3, expect: '-6px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '6px'},
{at: 0.6, expect: '12px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '30px'},
]);
test_interpolation({
property: 'offset-distance',
from: 'inherit',
to: '20px',
}, [
{at: -0.3, expect: '33px'},
{at: 0, expect: '30px'},
{at: 0.3, expect: '27px'},
{at: 0.6, expect: '24px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '15px'},
]);
test_interpolation({
property: 'offset-distance',
from: 'unset',
to: '20px',
}, [
{at: -0.3, expect: '-6px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '6px'},
{at: 0.6, expect: '12px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '30px'},
]);
test_interpolation({
property: 'offset-distance',
from: '10px',
to: '100%',
}, [
{at: -0.3, expect: 'calc(13px + -30%)'},
{at: 0, expect: 'calc(0% + 10px)'},
{at: 0.3, expect: 'calc(7px + 30%)'},
{at: 0.6, expect: 'calc(4px + 60%)'},
{at: 1, expect: '100%'},
{at: 1.5, expect: 'calc(-5px + 150%)'},
]);
</script>
</body>
</html>