53 lines
1.3 KiB
HTML
53 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<html class="reftest-wait">
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<title>View transitions: Modify style via CSSOM</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:bokan@chromium.org">
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<link rel="match" href="modify-style-via-cssom-ref.html">
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<script src="/common/reftest-wait.js"></script>
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<style>
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#box {
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width: 100px;
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height: 100px;
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background: limegreen;
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}
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html::view-transition-group(root) {
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animation-duration: 300s;
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}
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html::view-transition-new(root) {
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animation: none;
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opacity: 0;
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}
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html::view-transition-old(root) {
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animation: none;
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opacity: 1;
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}
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</style>
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<div id="box"></div>
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<script>
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failIfNot(document.startViewTransition, "Missing document.startViewTransition");
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function rAF() {
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return new Promise(resolve => requestAnimationFrame(resolve));
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}
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async function runTest() {
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await document.startViewTransition().ready;
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await rAF();
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await rAF();
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// Once the animation is running, ensure modifying style via CSSOM is
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// effective.
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const cssSheet = new CSSStyleSheet();
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cssSheet.replaceSync(`::view-transition-old(root) {
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transform: translateY(100px);
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}`);
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document.adoptedStyleSheets = [cssSheet];
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await rAF();
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takeScreenshot();
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}
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onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
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</script>
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</html>
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