testing/web-platform/tests/css/css-view-transitions/root-to-shared-animation-incoming.html

   1 <!DOCTYPE html>
   2 <html class=reftest-wait>
   3 <link rel="help" href="https://github.com/WICG/view-transitions">
   4 <link rel="author" href="mailto:vmpstr@chromium.org">
   5 <link rel="match" href="root-to-shared-animation-incoming-ref.html">
   6
   7 <script src="/common/reftest-wait.js"></script>
   8
   9 <style>
  10 body {
  11   background: lightgreen;
  12   padding: 0;
  13   margin: 0;
  14 }
  15 #box {
  16   width: 100px;
  17   height: 120px;
  18   background: blue;
  19   contain: paint;
  20 }
  21
  22 html::view-transition-group(*) { animation-delay: 300s; }
  23 html::view-transition-new(*) { animation: unset; opacity: 1; }
  24 html::view-transition-old(*) { animation: unset; opacity: 0; }
  25 </style>
  26
  27 <div id=box></div>
  28
  29 <script>
  30 failIfNot(document.startViewTransition, "Missing document.startViewTransition");
  31
  32 async function runTest() {
  33   document.startViewTransition(() => {
  34     document.documentElement.style.viewTransitionName = "none";
  35     box.style.viewTransitionName = "root";
  36     // We should not see the "live" body at all.
  37     document.body.style.background = "red";
  38
  39     requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
  40   });
  41 }
  42 onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
  43 </script>
  44