69 lines
2 KiB
HTML
69 lines
2 KiB
HTML
<!DOCTYPE html>
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<title>View transitions: event pseudo name</title>
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<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
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<link rel="author" href="mailto:vmpstr@chromium.org">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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:root { view-transition-name: none; }
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#first {
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background: blue;
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width: 100px;
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height: 100px;
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view-transition-name: shared;
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}
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html::view-transition-group(*),
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html::view-transition-image-pair(*),
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html::view-transition-new(*),
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html::view-transition-old(*) {
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animation-duration: 600s;
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}
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@keyframes fade-in {
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from { opacity: 0; }
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}
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html::view-transition-image-pair(*) {
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animation: fade-in 600s both;
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}
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</style>
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<div id=first></div>
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<script>
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async_test(t => {
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assert_implements(document.startViewTransition, "Missing document.startViewTransition");
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let groupAnimationCount = 0;
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let oldAnimationCount = 0;
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let newAnimationCount = 0;
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let wrapperAnimationCount = 0;
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document.documentElement.addEventListener("animationstart", (e) => {
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let pseudo = e.pseudoElement;
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if (pseudo == "::view-transition-group(shared)") {
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groupAnimationCount++;
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} else if (pseudo == "::view-transition-new(shared)") {
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newAnimationCount++;
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} else if (pseudo == "::view-transition-old(shared)") {
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oldAnimationCount++;
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} else if (pseudo = "::view-transition-image-pair(shared)") {
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wrapperAnimationCount++;
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}
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let total =
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groupAnimationCount + oldAnimationCount + newAnimationCount + wrapperAnimationCount;
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// Old/new images have 2 animations : opacity and mix-blend-mode.
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if (total == 6) {
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t.step(() => assert_equals(groupAnimationCount, 1));
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t.step(() => assert_equals(wrapperAnimationCount, 1));
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t.step(() => assert_equals(oldAnimationCount, 2));
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t.step(() => assert_equals(newAnimationCount, 2));
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t.done();
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}
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});
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document.startViewTransition();
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}, "verifies pseudo name includes a tag");
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</script>
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