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158 lines
3.8 KiB
HTML
158 lines
3.8 KiB
HTML
<!DOCTYPE html>
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<meta charset="UTF-8">
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<title>object-position-interpolation</title>
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<link rel="help" href="https://drafts.csswg.org/css-images-3/#the-object-position">
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<meta name="assert" content="object-position supports animation by computation">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/css/support/interpolation-testcommon.js"></script>
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<style>
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.parent {
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object-position: 30px 10px;
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}
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.target {
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position: relative;
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width: 100px;
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height: 100px;
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background-color: black;
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display: inline-block;
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margin: 20px 0px 20px 0px;
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object-fit: fill;
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object-position: 10px 30px;
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}
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.expected {
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background-color: green;
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}
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</style>
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<body>
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</body>
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<script>
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test_interpolation({
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property: 'object-position',
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from: neutralKeyframe,
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to: '20px 20px',
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}, [
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{at: -0.3, expect: '7px 33px'},
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{at: 0, expect: '10px 30px'},
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{at: 0.5, expect: '15px 25px'},
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{at: 1, expect: '20px 20px'},
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{at: 1.5, expect: '25px 15px'},
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]);
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test_interpolation({
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property: 'object-position',
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from: 'initial',
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to: '20px 20px',
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}, [
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{at: -0.3, expect: 'calc(-6px + 65%) calc(-6px + 65%)'},
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{at: 0, expect: '50% 50%'},
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{at: 0.5, expect: 'calc(10px + 25%) calc(10px + 25%)'},
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{at: 1, expect: 'calc(20px + 0%) calc(20px + 0%)'},
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{at: 1.5, expect: 'calc(30px + -25%) calc(30px + -25%)'},
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]);
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test_interpolation({
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property: 'object-position',
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from: 'inherit',
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to: '20px 20px',
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}, [
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{at: -0.3, expect: '33px 7px'},
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{at: 0, expect: '30px 10px'},
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{at: 0.5, expect: '25px 15px'},
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{at: 1, expect: '20px 20px'},
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{at: 1.5, expect: '15px 25px'},
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]);
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test_interpolation({
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property: 'object-position',
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from: 'unset',
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to: '20px 20px',
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}, [
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{at: -0.3, expect: 'calc(-6px + 65%) calc(-6px + 65%)'},
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{at: 0, expect: '50% 50%'},
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{at: 0.5, expect: 'calc(10px + 25%) calc(10px + 25%)'},
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{at: 1, expect: 'calc(20px + 0%) calc(20px + 0%)'},
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{at: 1.5, expect: 'calc(30px + -25%) calc(30px + -25%)'},
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]);
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test_interpolation({
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property: 'object-position',
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from: '50% 50%',
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to: '100% 100%'
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}, [
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{at: -0.3, expect: '35% 35%'},
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{at: 0, expect: '50% 50%'},
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{at: 0.5, expect: '75% 75%'},
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{at: 1, expect: '100% 100%'},
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{at: 1.5, expect: '125% 125%'}
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]);
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test_interpolation({
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property: 'object-position',
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from: '100px 200px',
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to: '0px 0px'
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}, [
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{at: -0.3, expect: '130px 260px'},
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{at: 0, expect: '100px 200px'},
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{at: 0.5, expect: '50px 100px'},
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{at: 1, expect: '0px 0px'},
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{at: 1.5, expect: '-50px -100px'}
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]);
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// Zero seem to be a special case in the old implementation
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test_interpolation({
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property: 'object-position',
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from: '50% 100%',
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to: '0px 0px'
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}, [
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{at: -0.3, expect: '65% 130%'},
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{at: 0, expect: '50% 100%'},
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{at: 0.5, expect: '25% 50%'},
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{at: 1, expect: '0px 0px'},
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{at: 1.5, expect: '-25% -50%'}
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]);
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test_interpolation({
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property: 'object-position',
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from: '50% 100%',
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to: '50px 100px'
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}, [
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{at: -0.3, expect: 'calc(65% + -15px) calc(130% + -30px)'},
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{at: 0, expect: '50% 100%'},
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{at: 0.5, expect: 'calc(25% + 25px) calc(50% + 50px)'},
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{at: 1, expect: 'calc(0% + 50px) calc(0% + 100px)'},
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{at: 1.5, expect: 'calc(-25% + 75px) calc(-50% + 150px)'}
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]);
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test_interpolation({
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property: 'object-position',
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from: 'center',
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to: 'top right'
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}, [
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{at: -0.3, expect: '35% 65%'},
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{at: 0, expect: '50% 50%'},
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{at: 0.5, expect: '75% 25%'},
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{at: 1, expect: '100% 0%'},
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{at: 1.5, expect: '125% -25%'}
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]);
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test_interpolation({
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property: 'object-position',
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from: 'center',
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to: 'right 0% bottom 50%',
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}, [
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{at: -0.5, expect: '25% 50%'},
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{at: 0, expect: 'center'},
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{at: 0.3, expect: '65% 50%'},
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{at: 0.5, expect: '75% 50%'},
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{at: 0.9, expect: '95% 50%'},
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{at: 1, expect: '100% 50%'},
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{at: 1.5, expect: '125% 50%'},
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{at: 2, expect: '150% 50%'},
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]);
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</script>
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