Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/css-view-transitions/navigation/pagereveal-setup-transition.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>View transitions: setup transition from pagereveal</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
<link rel="author" href="mailto:bokan@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@view-transition {
navigation: auto;
}
#target {
view-transition-name: none;
}
#target.transition {
view-transition-name: target;
}
</style>
<script>
const params = new URLSearchParams(location.search);
const mode = params.get("mode") || "test";
switch (mode) {
case "test":
promise_test(async t => {
const result = await new Promise(resolve => {
window.did_reveal = msg => { resolve(msg) };
const popup = window.open("?mode=old");
t.add_cleanup(() => popup.close());
});
assert_equals(result, "pass");
});
break;
case "old":
onload = () => {
document.getElementById('target').classList.add('transition');
requestAnimationFrame(() => requestAnimationFrame(() => {
location.replace("?mode=new");
}));
};
break;
case "new":
addEventListener('pagereveal', async e => {
if (e.viewTransition) {
// Setup the view-transition-name from the event. Ensure this is not
// too late to be discovered to create a shared element animation.
document.getElementById('target').classList.add('transition');
await e.viewTransition.ready;
const position = getComputedStyle(
document.documentElement,
"::view-transition-new(target)").position;
if (position == "absolute") {
window.opener.did_reveal("pass");
} else {
window.opener.did_reveal("fail: position " + position);
}
} else {
window.opener.did_reveal("fail: no viewTransition");
}
});
break;
}
</script>
<body>
<div id="target"></div>
</body>