<!DOCTYPE html>
<html class="reftest-wait">
<title>View transitions: captured backdrop filter on the element animates</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:[email protected]">
<link rel="match" href="backdrop-filter-animated-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
.box {
background: green;
width: 100px;
height: 100px;
}
#target {
view-transition-name: target;
width: 50px;
height: 50px;
position: absolute;
top: 20px;
left: 20px;
backdrop-filter: grayscale(1);
}
#target.after {
backdrop-filter: grayscale(0);
}
html::view-transition-group(*) {
animation-duration: 1s;
animation-timing-function: linear;
animation-play-state: paused;
}
html::view-transition-new(*) { animation: unset; opacity: 1; }
html::view-transition-old(*) { animation: unset; opacity: 0; }
</style>
<div class=box></div>
<div id=target></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
let transition = document.startViewTransition(() => target.classList.add("after"));
transition.ready.then(() => {
requestAnimationFrame(() => requestAnimationFrame(() => {
document.getAnimations().forEach((animation) => {
animation.currentTime = 500;
});
requestAnimationFrame(takeScreenshot);
}));
});
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>
</html>
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