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<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: main frame and sibling frames transition at the same time</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:khushalsagar@chromium.org">
<link rel="match" href="sibling-frames-transition-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
#first {
position: fixed;
top: 0;
left: 0;
width: 50vw;
height: 50vh;
view-transition-name: first;
}
#second {
position: fixed;
top: 50vh;
left: 0;
width: 50vw;
height: 50vh;
view-transition-name: second;
}
/* The main frame is showing the old screenshot for the root*/
::view-transition-group(root) {
animation-duration: 300s;
}
::view-transition-new(root) {
animation: unset;
opacity: 0;
}
::view-transition-old(root) {
animation: unset;
opacity: 1;
}
/* For the iframes, show the new screenshot */
::view-transition-new(first), ::view-transition-new(second) {
animation: unset;
opacity: 1;
}
::view-transition-old(first), ::view-transition-old(second) {
animation: unset;
opacity: 0;
}
</style>
<iframe id="first" srcdoc="
<style>
/* The iframe is showing new live DOM */
::view-transition-group(root) {
animation-duration: 300s;
}
::view-transition-new(root) {
animation: unset;
opacity: 1;
}
::view-transition-old(root) {
animation: unset;
opacity: 0;
}
</style>
<body></body>"></iframe>
<iframe id="second" srcdoc="
<style>
/* The iframe is showing old DOM */
::view-transition-group(root) {
animation-duration: 300s;
}
::view-transition-new(root) {
animation: unset;
opacity: 0;
}
::view-transition-old(root) {
animation: unset;
opacity: 1;
}
</style>
<body></body>"></iframe>
<script>
onload = runTest;
async function startTransition(document, oldColor, newColor) {
document.documentElement.style.background = oldColor;
await document.startViewTransition(() => {
document.documentElement.style.background = newColor;
}).ready;
}
async function runTest() {
await startTransition(document, "green", "lightgreen");
await startTransition(first.contentDocument, "blue", "lightblue");
await startTransition(second.contentDocument, "magenta", "orange");
takeScreenshot();
}
</script>
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