mirror of
https://github.com/servo/servo.git
synced 2025-06-25 01:24:37 +01:00
59 lines
1.3 KiB
HTML
59 lines
1.3 KiB
HTML
<!DOCTYPE html>
|
|
<meta name="timeout" content="long">
|
|
<html>
|
|
<title>View transitions: CSS Animations are paused while render-blocked</title>
|
|
<link rel="help" href="https://github.com/WICG/view-transitions">
|
|
<link rel="author" href="mailto:khushalsagar@chromium.org">
|
|
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
|
|
<style>
|
|
@keyframes fade {
|
|
from {
|
|
opacity: 0;
|
|
}
|
|
}
|
|
|
|
div {
|
|
width: 100px;
|
|
height: 100px;
|
|
background: blue;
|
|
contain: paint;
|
|
view-transition-name: target;
|
|
}
|
|
|
|
.animated {
|
|
animation: fade 0.5s;
|
|
}
|
|
</style>
|
|
|
|
<div id=target></div>
|
|
|
|
<script>
|
|
let renderBlocked = true;
|
|
|
|
promise_test(() => {
|
|
assert_implements(document.startViewTransition, "Missing document.startViewTransition");
|
|
return new Promise(async (resolve, reject) => {
|
|
requestAnimationFrame(() => {
|
|
document.startViewTransition(() => {
|
|
return new Promise(async (inner_resolve) => {
|
|
step_timeout(() => {
|
|
renderBlocked = false;
|
|
inner_resolve();
|
|
}, 1000);
|
|
});
|
|
});
|
|
|
|
target.classList.toggle("animated");
|
|
target.onanimationend = () => {
|
|
if (renderBlocked)
|
|
reject();
|
|
else
|
|
resolve();
|
|
};
|
|
});
|
|
});
|
|
}, "CSS animation is blocked until prepare callback");
|
|
</script>
|