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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-view-transitions/new-element-on-start.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: new element tag specified for start phase</title>
<link rel="author" href="mailto:vmpstr@chromium.org">
<link rel="match" href="new-element-on-start-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
div {
width: 100px;
height: 100px;
contain: paint;
position: absolute;
top: 50px;
}
.before {
background: lightblue;
left: 50px;
}
.after {
background: black;
left: 200px;
}
.hidden {
background: red;
left: 350px;
}
html::view-transition-group(hidden) { animation-duration: 300s; }
html::view-transition-image-pair(hidden) { opacity: 0; }
html::view-transition-group(before) { animation-duration: 0s; }
html::view-transition-image-pair(before) { filter: invert(1); }
html::view-transition-group(after) { animation-duration: 0s; }
html::view-transition-image-pair(after) { filter: invert(1); }
html::view-transition-group(root) { animation: unset; opacity: 0; }
html::view-transition { background: lightpink; }
</style>
<div id=before class=before></div>
<div id=after class=after></div>
<div id=hidden class=hidden></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
hidden.style.viewTransitionName = "hidden";
before.style.viewTransitionName = "before";
let transition = document.startViewTransition(() => {
before.remove();
after.style.viewTransitionName = "after";
});
transition.ready.then(() => requestAnimationFrame(() => requestAnimationFrame(takeScreenshot)));
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>