Blitz - WPT: to-scale-zero.html

wpt / css / css-view-transitions / scoped / to-scale-zero.html

/css/css-view-transitions/scoped/to-scale-zero.html

<!DOCTYPE html>
<html class="reftest-wait">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="match" href="empty-ref.html">
  <title>Scoped view-transition to scale 0</title>
  <!-- TODO update link -->
  <link rel="help" href="https://www.w3.org/TR/css-view-transitions-2/">
</head>
<script src="/common/reftest-wait.js"></script>
<script src="/dom/events/scrolling/scroll_support.js"></script>
<style>
  #target {
    background-color: blue;
    height: 100px;
    width: 100px;
    position: relative;
    view-transition-name: target;
    z-index: 1;
  }
  .collapsed {
    transform: scale(0);
  }

  ::view-transition-old(target) {
    animation: -ua-view-transition-fade-out 1s -0.5s linear paused;
  }

  ::view-transition-new(target) {
    animation: -ua-view-transition-fade-in 1s -0.5s linear paused;
  }
</style>
<body>
  <div id="target"></div>
</body>
<script>
  failIfNot(Element.prototype.startViewTransition,
            "Missing element.startViewTransition");

  window.onload = async () => {
    const target = document.getElementById('target');
    await waitForCompositorReady();
    const vt = target.startViewTransition(() => {
      target.classList.toggle('collapsed');
    });
    await vt.ready;
    requestAnimationFrame(takeScreenshot);
  };
</script>
</html>

/css/css-view-transitions/scoped/empty-ref.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
</body>
</html>