new-content-element-writing-modes.html

<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: shared element writing-modes</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:[email protected]">
<link rel="match" href="new-content-element-writing-modes-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
#hidden {
  width: 100px;
  height: 100px;
  background: red;
  position: absolute;
  top: 0;
  left: 0;
  contain: paint;
  view-transition-name: hidden;
}
.tb { writing-mode: horizontal-tb; }
.lr { writing-mode: vertical-lr; }
.rl { writing-mode: vertical-rl; }
.shared {
  margin: 2px;
  width: 100px;
  height: 50px;
  background: green;
  contain: paint;
  border: 1px solid black;
}
#target {
  background: red;
  position: absolute;
  top: 50px;
  left: 50px;
  width: 100px;
  height: 500px;
  contain: paint;
}

html::view-transition-group(hidden) { animation-duration: 300s; }
html::view-transition-image-pair(hidden) { animation: unset; opacity: 0; }

html::view-transition-group(s1),
html::view-transition-group(s2),
html::view-transition-group(s3) { animation-duration: 0s; }

html::view-transition-new(s1),
html::view-transition-new(s2),
html::view-transition-new(s3) { animation: unset; opacity: 1; }

html::view-transition-old(s1),
html::view-transition-old(s2),
html::view-transition-old(s3) { animation: unset; opacity: 0; }

/* hide the root so we show transition background to ensure we're in a transition */
html::view-transition-group(root) { animation: unset; opacity: 0; }
html::view-transition { background: lightpink; }

</style>

<div id=hidden>Should not be visible</div>
<div id=s1 class=source>Should not be visible</div>
<div id=s2 class=source>Should not be visible</div>
<div id=s3 class=source>Should not be visible</div>
<div id=one class="tb shared">T</div>
<div id=two class="lr shared">T</div>
<div id=three class="rl shared">T</div>

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

async function runTest() {
  s1.style = "view-transition-name: s1";
  s2.style = "view-transition-name: s2";
  s3.style = "view-transition-name: s3";
  document.startViewTransition(() => {
    s1.remove();
    s2.remove();
    s3.remove();
    hidden.style.left = "200px";
    one.style = "view-transition-name: s1";
    two.style = "view-transition-name: s2";
    three.style = "view-transition-name: s3";
    requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
  });
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>
chromium/third_party/blink/web_tests/external/wpt/css/css-view-transitions/new-content-element-writing-modes.html
