<!DOCTYPE html>
<html class=reftest-wait style="background: lightblue;">
<title>When the root element has scrollbars, these should be excluded in old snapshot</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:[email protected]">
<link rel="match" href="root-scrollbar-with-fixed-background-ref.html">
<meta name="fuzzy" content="maxDifference=0-2; totalPixels=0-4500">
<script src="/common/rendering-utils.js"></script>
<script src="/common/reftest-wait.js"></script>
<style>
#hide {
position: absolute;
top: 0px;
left: 0px;
width: 10px;
height: 10px;
background: red;
contain: paint;
view-transition-name: hide;
}
#first {
width: 10px;
background: linear-gradient(green, blue);
height: 1000px;
}
body {
margin: 0px;
padding: 0px;
}
/* Set a no-op animation to screenshot the pseudo transition DOM. */
html::view-transition-group(hide) {
animation-duration: 300s;
opacity: 0;
}
html::view-transition-new(*) {
animation: unset;
opacity: 0;
height: 100%;
}
html::view-transition-old(*) {
animation: unset;
filter: invert(1);
height: 100%;
}
</style>
<div id=hide></div>
<div id=first></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
await waitForAtLeastOneFrame();
await new Promise((resolve) => {
addEventListener("scroll", () => {
requestAnimationFrame(() => requestAnimationFrame(resolve));
}, { once: true, capture: true });
document.documentElement.scrollTop = 500;
});
document.startViewTransition(() => {
requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
});
}
onload = () => requestAnimationFrame(runTest);
</script>
</html>
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