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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/motion/animation/offset-path-interpolation-001.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>
<body>
<script>
'use strict';
// Distinct number of path segments
test_no_interpolation({
property: 'offset-path',
from: "path('M 0 0 H 1 H 2')",
to: "path('M 0 0 H 3')"
});
test_no_interpolation({
property: 'offset-path',
from: "path('M 1 2 L 3 4 Z')",
to: "none"
});
// Distinct segment types
test_no_interpolation({
property: 'offset-path',
from: "path('M 10 0 H 11')",
to: "path('M 20 0 V 2')"
});
test_no_interpolation({
property: 'offset-path',
from: "path('M 1 2 L 4 6 Z')",
to: "path('M 1 2 H 4 V 6')"
});
// Exercise each segment type
test_interpolation({
property: 'offset-path',
from: "path('M 0 0 Z')",
to: "path('M 0 0 Z')"
}, [
{at: -1, expect: "path('M 0 0 Z')"},
{at: 0, expect: "path('M 0 0 Z')"},
{at: 0.125, expect: "path('M 0 0 Z')"},
{at: 0.875, expect: "path('M 0 0 Z')"},
{at: 1, expect: "path('M 0 0 Z')"},
{at: 2, expect: "path('M 0 0 Z')"}
]);
test_interpolation({
property: 'offset-path',
from: "path('M 20 70')",
to: "path('M 100 30')"
}, [
{at: -1, expect: "path('M -60 110')"},
{at: 0, expect: "path('M 20 70')"},
{at: 0.125, expect: "path('M 30 65')"},
{at: 0.875, expect: "path('M 90 35')"},
{at: 1, expect: "path('M 100 30')"},
{at: 2, expect: "path('M 180 -10')"}
]);
test_interpolation({
property: 'offset-path',
from: "path('m 20 70')",
to: "path('m 100 30')"
}, [
{at: -1, expect: "path('M -60 110')"},
{at: 0, expect: "path('M 20 70')"},
{at: 0.125, expect: "path('M 30 65')"},
{at: 0.875, expect: "path('M 90 35')"},
{at: 1, expect: "path('M 100 30')"},
{at: 2, expect: "path('M 180 -10')"}
]);
test_interpolation({
property: 'offset-path',
from: "path('m 100 200 L 120 270')",
to: "path('m 100 200 L 200 230')"
}, [
{at: -1, expect: "path('M 100 200 L 40 310')"},
{at: 0, expect: "path('M 100 200 L 120 270')"},
{at: 0.125, expect: "path('M 100 200 L 130 265')"},
{at: 0.875, expect: "path('M 100 200 L 190 235')"},
{at: 1, expect: "path('M 100 200 L 200 230')"},
{at: 2, expect: "path('M 100 200 L 280 190')"}
]);
test_interpolation({
property: 'offset-path',
from: "path('m 100 200 l 20 70')",
to: "path('m 100 200 l 100 30')"
}, [
{at: -1, expect: "path('M 100 200 L 40 310')"},
{at: 0, expect: "path('M 100 200 L 120 270')"},
{at: 0.125, expect: "path('M 100 200 L 130 265')"},
{at: 0.875, expect: "path('M 100 200 L 190 235')"},
{at: 1, expect: "path('M 100 200 L 200 230')"},
{at: 2, expect: "path('M 100 200 L 280 190')"}
]);
</script>
</body>
</html>