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121 lines
4.1 KiB
HTML
121 lines
4.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<link rel="help" src="https://drafts.csswg.org/scroll-animations-1/#named-timeline-range">
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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="/web-animations/testcommon.js"></script>
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<script src="support/testcommon.js"></script>
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<title>Animation range and delay</title>
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</head>
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<style type="text/css">
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@keyframes anim {
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cover 0% { /* resolves to -100% */
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opacity: 0;
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transform: none;
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margin-left: 0px;
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/* missing margin-right -- requires neutral keyframe at 0% */
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}
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cover 100% { /* resolves to 200% */
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opacity: 1;
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transform: translateX(300px);
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margin-right: 0px;
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/* missing margin-left -- requires neutral keyframe at 100% */
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}
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}
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#scroller {
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border: 10px solid lightgray;
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overflow-y: scroll;
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overflow-x: hidden;
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width: 300px;
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height: 200px;
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}
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#target {
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margin: 800px 10px;
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width: 100px;
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height: 100px;
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z-index: -1;
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background-color: green;
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animation: anim auto both linear;
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animation-timeline: --t1;
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animation-range-start: contain 0%;
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animation-range-end: contain 100%;
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view-timeline: --t1 block;
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}
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</style>
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<body>
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<div id=scroller>
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<div id=target></div>
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</div>
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</body>
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<script type="text/javascript">
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async function runTest() {
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function assert_progress_equals(anim, expected, errorMessage) {
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assert_approx_equals(
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anim.effect.getComputedTiming().progress,
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expected, 1e-6, errorMessage);
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}
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function assert_opacity_equals(expected, errorMessage) {
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assert_approx_equals(
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parseFloat(getComputedStyle(target).opacity), expected, 1e-6,
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errorMessage);
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}
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function assert_translate_x_equals(expected, errorMessage) {
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const style = getComputedStyle(target).transform;
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const regex = /matrix\(([^\)]*)\)/;
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const captureGroupIndex = 1;
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const translateIndex = 4;
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const match = style.match(regex)[captureGroupIndex];
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const translateX = parseFloat(match.split(',')[translateIndex].trim());
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assert_approx_equals(translateX, expected, 1e-6, errorMessage);
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}
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function assert_property_equals(property, expected, errorMessage) {
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const value = parseFloat(getComputedStyle(target)[property]);
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assert_approx_equals(value, expected, 1e-6, errorMessage);
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}
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promise_test(async t => {
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await waitForNextFrame();
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const anims = document.getAnimations();
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assert_equals(anims.length, 1,
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"Should have one animation attatched to the view-timeline");
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const anim = anims[0];
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await anim.ready;
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await waitForNextFrame();
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// @ contain 0%
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scroller.scrollTop = 700;
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await waitForNextFrame();
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assert_progress_equals(anim, 0, 'progress at contain 0%');
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assert_translate_x_equals(100, 'translation at contain 0%');
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assert_opacity_equals(1/3, 'opacity at contain 0%');
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assert_property_equals('margin-left', 5, 'margin-left at contain 0%');
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assert_property_equals('margin-right', 10, 'margin-right at contain 0%');
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// @ contain 50%
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scroller.scrollTop = 750;
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await waitForNextFrame();
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assert_progress_equals(anim, 0.5, 'progress at contain 50%');
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assert_translate_x_equals(150, 'translation at contain 50%');
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assert_opacity_equals(0.5, 'opacity at contain 50%');
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assert_property_equals('margin-left', 7.5, 'margin-left at contain 50%');
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assert_property_equals('margin-right', 7.5, 'margin-right at contain 50%');
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// @ contain 100%
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scroller.scrollTop = 800;
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await waitForNextFrame();
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assert_progress_equals(anim, 1, 'progress at contain 100%');
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assert_translate_x_equals(200, 'translation at contain 100%');
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assert_opacity_equals(2/3, 'opacity at contain 100%');
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assert_property_equals('margin-left', 10, 'margin-left at contain 100%');
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assert_property_equals('margin-right', 5, 'margin-right at contain 100%');
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}, 'ViewTimeline with timeline offset keyframes outside [0,1]');
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}
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window.onload = runTest;
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</script>
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</html>
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