Blitz - WPT: paint-order.html

wpt / css / css-view-transitions / scoped / paint-order.html

/css/css-view-transitions/scoped/paint-order.html

<!DOCTYPE html>
<html class=reftest-wait>
<head>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
<link rel="match" href="paint-order-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/web-animations/testcommon.js"></script>
<style>

#scope {
  position: relative; width: 200px; height: 100px;
  background: white; contain: strict;
  view-transition-name: none;
}
#part {
  position: absolute; top: 10px; left: 10px;
  width: 50px; height: 50px; background: #8cf;
  z-index: 1; view-transition-name: foo;
}
#higher-nonpart {
  position: absolute; top: 20px; left: 30px;
  z-index: 2; width: 50px; height: 50px; background: #f88;
}
#lower-nonpart {
  position: absolute; top: 40px; left: 20px;
  z-index: -1; width: 50px; height: 50px; background: #a4f;
}
::view-transition { background: rgba(0, 0, 0, 0.1); }
::view-transition-group(*) { animation-play-state: paused; }
::view-transition-new(*) {
  animation: unset; opacity: 1;
  transform: translateX(40px) translateY(20px);
}
::view-transition-old(*) { animation: unset; opacity: 0; }

</style>
</head>
<body>
<div id=scope>
  <div id=part></div>
  <div id=higher-nonpart></div>
  <div id=lower-nonpart></div>
</div>
<script>

const scope = document.querySelector("#scope");
failIfNot(scope.startViewTransition, "Missing element.startViewTransition");

async function runTest() {
  await waitForCompositorReady();
  scope.startViewTransition(() => requestAnimationFrame(takeScreenshot));
}
onload = () => runTest();

</script>
</body>
</html>

/css/css-view-transitions/scoped/paint-order-ref.html

<!DOCTYPE html>
<style>
  #scope {
    position: relative; width: 200px; height: 100px;
    background: white; contain: strict;
  }
  #nonpart1 {
    position: absolute; top: 40px; left: 20px;
    width: 50px; height: 50px; background: #a4f;
  }
  #nonpart2 {
    position: absolute; top: 20px; left: 30px;
    width: 50px; height: 50px; background: #f88;
  }
  #vt {
    position: relative; width: 200px; height: 100px;
    top: -100px; background: rgba(0, 0, 0, 0.1);
    will-change: transform;
  }
  #part {
    position: absolute; top: 30px; left: 50px;
    width: 50px; height: 50px; background: #8cf;
  }

</style>
<div id=scope>
  <div id=nonpart1></div>
  <div id=nonpart2></div>
</div>
<div id=vt>
  <div id=part></div>
</div>