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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-view-transitions/animating-new-content-subset.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: animations in the new element show up in the images if it partially changes</title>
<link rel="author" href="mailto:khushalsagar@chromium.org">
<link rel="match" href="animating-new-content-subset-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<style>
#target {
width:100px;
height:100px;
background: blue;
view-transition-name: target;
will-change: transform;
}
.child {
width: 50px;
height: 50px;
will-change: transform;
background: green;
}
.hidden {
width: 10px;
height: 10px;
background: grey;
view-transition-name: hidden;
}
html::view-transition-group(hidden) { animation-duration: 300s; visibility: hidden;}
html::view-transition-group(target) {
animation: unset;
}
html::view-transition-image-pair(target) {
isolation: unset;
}
html::view-transition-old(target), html::view-transition-new(target) {
animation: unset;
mix-blend-mode: normal;
}
html::view-transition-old(target) {
opacity: 0;
}
html::view-transition-new(target) {
opacity: 1;
}
</style>
<div id="target">
<div class="child" id="child">
I'm the inner composited child.
</div>
</div>
<div class="hidden"></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
let transition = document.startViewTransition();
transition.ready.then(async () => {
await waitForAtLeastOneFrame();
await waitForAtLeastOneFrame();
child.style.background = "grey";
await waitForAtLeastOneFrame();
await waitForAtLeastOneFrame();
takeScreenshot();
});
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>