wpt/css/css-view-transitions/element-stops-grouping-after-animation.html at master · web-platform-tests/wpt · GitHub

Name: wpt/css/css-view-transitions/element-stops-grouping-after-animation.html at master · web-platform-tests/wpt · GitHub
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<!DOCTYPE html>
<htmlclass=reftest-wait>
<title>View transitions: view transition element remains grouping during animation</title>
<linkrel="help" href="https://www.w3.org/TR/css-view-transitions-1/">
<linkrel="author" href="mailto:vmpstr@chromium.org">
<linkrel="match" href="element-stops-grouping-after-animation-ref.html">
<scriptsrc="/common/reftest-wait.js"></script>

<style>
.parent {
top:0;
width:100px;
height:100px;
position: absolute;
background: blue;
transform-style: preserve-3d;
}
.named {
view-transition-name: target;
}

.child {
background: green;
width:100px;
height:100px;
top:0;
left:0;
position: absolute;
transform:translateZ(-500px);
}

body {
perspective:1000px;
height:500px;
}

::view-transition-group(root) {
animation-duration:50ms;
opacity:0;
}
::view-transition-group(target) {
animation-duration:0s;
}
::view-transition-new(target) {
animation: unset;
opacity:1;
}
::view-transition-old(target) {
animation: unset;
opacity:0;
}

::view-transition {
background: pink;
}
</style>

<divid=targetclass="parent named"><divclass=child></div></div>

<script>
failIfNot(document.startViewTransition,"Missing document.startViewTransition");

functionrunTest(){
lettransition=document.startViewTransition();
transition.ready.then(()=>{
requestAnimationFrame(()=>{
target.classList.remove("named");
});
});
transition.finished.then(takeScreenshot);
}

onload=()=>requestAnimationFrame(()=>requestAnimationFrame(runTest));
</script>