60 lines
1.6 KiB
HTML
60 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<html class=reftest-wait>
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<title>View transitions: iframe and main frame transition at the same time</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:khushalsagar@chromium.org">
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<link rel="match" href="iframe-and-main-frame-transition-old-main-ref.html">
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<script src="/common/reftest-wait.js"></script>
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<style>
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iframe {
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position: fixed;
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top: 0;
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left: 0;
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width: 50vw;
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height: 50vh;
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}
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/* The main frame is showing the old screenshot */
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::view-transition-group(root) {
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animation-duration: 300s;
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}
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::view-transition-new(root) {
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animation: unset;
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opacity: 0;
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}
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::view-transition-old(root) {
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animation: unset;
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opacity: 1;
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}
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</style>
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<iframe srcdoc="
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<style>
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body {
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background: orange;
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}
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</style>
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<body></body>"></iframe>
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<script>
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onload = runTest;
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async function startTransition(document, oldColor, newColor) {
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document.documentElement.style.background = oldColor;
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await document.startViewTransition(() => {
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document.documentElement.style.background = newColor;
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}).ready;
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}
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async function runTest() {
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await startTransition(document, "green", "lightgreen");
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// Start an iframe transition while the main frame transition is showing the
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// old screenshot. This change shouldn't show up visually because the old
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// screenshot on the main frame still has the iframe's old content.
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const iframeDocument = document.querySelector("iframe").contentDocument;
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await startTransition(iframeDocument, "blue", "lightblue");
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takeScreenshot();
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}
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</script>
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