Blitz - WPT: ancestor-display-change.html

wpt / css / css-view-transitions / scoped / ancestor-display-change.html

/css/css-view-transitions/scoped/ancestor-display-change.html

<!DOCTYPE html>
<html class="reftest-wait">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!--
    Accommodate slight color mismatch due to mix-blend-mode in cross fade and
    rounding.
  -->
  <meta name="fuzzy" content="maxDifference=0-6;totalPixels=0-10000">
  <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
  <link rel="match" href="ancestor-display-change-ref.html">
</head>
<style>
  .block {
    background-color: blue;
    margin: 10px;
    height: 100px;
    width: 100px;
  }
  #target {
    view-transition-name: target;
  }
  .fade-out {
    opacity: 0;
  }
  .flex {
    display: flex;
  }
  ::view-transition-group(*),
  ::view-transition-image-pair(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    /* freeze all animations at mid-point */
    animation-duration: 100000s;
    animation-delay: -50000s;
    animation-timing-function: cubic-bezier(0, 1, 1, 0);
  }
</style>
<script src="/common/reftest-wait.js"></script>
<script src="/web-animations/testcommon.js"></script>
<body>
  <div id="ancestor">
    <div id="scope" class="block"></div>
    <div class="block"></div>
  </div>
</body>
<script>
  const scope = document.getElementById("scope");
  failIfNot(scope.startViewTransition, "Missing element.startViewTransition");

  window.onload = async () => {
    await waitForCompositorReady();
    const vt = scope.startViewTransition(() => {
      scope.classList.add('fade-out');
    });
    await vt.ready;
    ancestor.classList.add('flex');
    requestAnimationFrame(takeScreenshot);
  };
</script>
</html>

/css/css-view-transitions/scoped/ancestor-display-change-ref.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
</head>
<style>
  .block {
    background-color: blue;
    margin: 10px;
    height: 100px;
    width: 100px;
  }
  .fade-out {
    opacity: 0.5;
  }
  .flex {
    display: flex;
  }
</style>
<body>
  <div id="ancestor" class="flex">
    <div id="scope" class="block fade-out"></div>
    <div class="block"></div>
  </div>
</body>
</html>