36 lines
1.5 KiB
HTML
36 lines
1.5 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>CSS Animations on view transition pseudos run more than once</title>
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<link rel="help" href="https://drafts.csswg.org/css-animations-1/">
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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-animations/support/testcommon.js"></script>
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<style>
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:root::view-transition,
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:root::view-transition-group(root),
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:root::view-transition-image-pair(root),
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:root::view-transition-old(root),
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:root::view-transition-new(root) {
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animation: view-transition-animation 1ms;
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}
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@keyframes view-transition-animation {
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to { opacity: 0 }
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}
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</style>
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<div id="log"></div>
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<script>
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"use strict";
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promise_test(async t => {
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let viewTransition = document.startViewTransition(() => {});
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await viewTransition.ready;
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assert_equals(document.documentElement.getAnimations({ subtree: true }).length, 5, "Starting a view transition should start related animations.");
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await viewTransition.finished;
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assert_equals(document.documentElement.getAnimations({ subtree: true }).length, 0, "Stopping a view transition should stop related animations.");
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await waitForNextFrame();
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viewTransition = document.startViewTransition(() => {});
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await viewTransition.ready;
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assert_equals(document.documentElement.getAnimations({ subtree: true }).length, 5, "Re-starting a view-transition should restart related animations.");
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}, "CSS Animations on view transitions are canceled and restarted when the view transition starts and ends.");
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</script>
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