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<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: computed transform for position fixed elements doesn't include scroll pos</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" title="Matt Woodrow" href="mailto:mattwoodrow@apple.com">
<link rel="match" href="new-content-transform-position-fixed-ref.html">
<script src="/common/rendering-utils.js"></script>
<script src="/common/reftest-wait.js"></script>
<script src="../../../../../resources/ui-helper.js"></script>
<style>
.box {
background: lightblue;
width: 100px;
height: 100px;
position: fixed;
view-transition-name: target;
}
/* We're verifying what we capture, so just display the new contents for 5 minutes. */
html::view-transition-group(*) { animation-duration: 300s; }
html::view-transition-new(*) { animation: unset; opacity: 1; }
html::view-transition-old(*) { animation: unset; opacity: 0; }
/* hide the root so we show transition background to ensure we're in a transition */
html::view-transition-group(root) { animation: unset; opacity: 0; }
html::view-transition { background: lightpink; }
</style>
<div class=box></div>
<div style="height: 1000px;"></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
await waitForAtLeastOneFrame();
/* Scroll the doc, target element's element-to-screen transform should not change */
await new Promise((resolve) => {
addEventListener("scroll", () => {
requestAnimationFrame(() => requestAnimationFrame(resolve));
}, { once: true, capture: true });
document.documentElement.scrollTop = 500;
});
let t = document.startViewTransition(() => {
requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
});
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>
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