164 lines
3.6 KiB
HTML
164 lines
3.6 KiB
HTML
<!DOCTYPE html>
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<meta charset="UTF-8">
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<title>font-size interpolation</title>
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<link rel="help" href="https://drafts.csswg.org/css-fonts-3/#propdef-font-size">
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<meta name="assert" content="font-size supports animation as length">
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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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.container {
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font-stretch: ultra-expanded;
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}
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.container2 {
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font-stretch: ultra-condensed;
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}
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.target {
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display: inline-block;
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font: 100px sans-serif;
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font-stretch: normal;
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}
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.expected {
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color: green;
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margin-right: 30px;
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}
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</style>
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<body>
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<template id="target-template">
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<span class="container">
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<div class="target">TT</div>
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</span>
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</template>
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<span id="inv-container" class="container">
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<div id="inv-target" class="target">TT</div>
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</span>
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</body>
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<script>
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test_interpolation({
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property: 'font-stretch',
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from: '100%',
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to: '200%'
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}, [
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{at: -2, expect: '0%'}, // CSS font-stretch can't be negative.
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{at: -0.25, expect: '75%'},
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{at: 0, expect: '100%'},
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{at: 0.3, expect: '130%'},
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{at: 0.6, expect: '160%'},
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{at: 1, expect: '200%'},
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{at: 1.5, expect: '250%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: neutralKeyframe,
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to: '200%'
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}, [
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{at: -2, expect: '0%'},
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{at: -0.25, expect: '75%'},
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{at: 0, expect: '100%'},
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{at: 0.3, expect: '130%'},
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{at: 0.6, expect: '160%'},
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{at: 1, expect: '200%'},
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{at: 1.5, expect: '250%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: 'initial',
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to: 'inherit'
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}, [
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{at: -2, expect: '0%'},
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{at: -0.25, expect: '75%'},
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{at: 0, expect: '100%'},
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{at: 0.3, expect: '130%'},
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{at: 0.6, expect: '160%'},
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{at: 1, expect: '200%'},
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{at: 1.5, expect: '250%'},
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]);
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// Test interpolation from keywords.
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test_interpolation({
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property: 'font-stretch',
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from: 'normal',
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to: 'ultra-expanded'
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}, [
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{at: -0.25, expect: '75%'},
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{at: 0, expect: '100%'},
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{at: 0.125, expect: '112.5%'},
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{at: 0.25, expect: '125%'},
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{at: 0.5, expect: '150%'},
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{at: 0.75, expect: '175%'},
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{at: 1, expect: '200%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: 'ultra-condensed',
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to: 'condensed'
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}, [
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{at: 0, expect: '50%'},
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{at: 0.5, expect: '62.5%'},
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{at: 1, expect: '75%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: 'extra-condensed',
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to: 'semi-condensed'
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}, [
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{at: 0, expect: '62.5%'},
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{at: 0.5, expect: '75%'},
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{at: 1, expect: '87.5%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: 'condensed',
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to: 'expanded'
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}, [
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{at: 0, expect: '75%'},
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{at: 0.25, expect: '87.5%'},
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{at: 0.5, expect: '100%'},
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{at: 0.75, expect: '112.5%'},
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{at: 1, expect: '125%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: 'semi-condensed',
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to: 'semi-expanded'
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}, [
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{at: 0, expect: '87.5%'},
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{at: 0.5, expect: '100%'},
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{at: 1, expect: '112.5%'},
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]);
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test_interpolation({
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property: 'font-stretch',
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from: 'normal',
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to: 'extra-expanded'
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}, [
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{at: 0, expect: '100%'},
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{at: 0.25, expect: '112.5%'},
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{at: 0.5, expect: '125%'},
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{at: 1, expect: '150%'},
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]);
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test(t => {
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var container = document.getElementById('inv-container');
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var target = document.getElementById('inv-target');
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var anim = target.animate({fontStretch: ['normal', 'inherit']}, 1000);
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anim.pause();
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anim.currentTime = 500;
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assert_equals(getComputedStyle(target).fontStretch, '150%');
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container.setAttribute('class', 'container2');
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assert_equals(getComputedStyle(target).fontStretch, '75%');
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}, "An interpolation to inherit updates correctly on a parent style change.");
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</script>
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