Blitz - WPT: new-content-transform-position-fixed.html

wpt / css / css-view-transitions / new-content-transform-position-fixed.html

/css/css-view-transitions/new-content-transform-position-fixed.html

<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: computed transform for position fixed elements doesn't include scroll pos</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" title="Matt Woodrow" href="mailto:mattwoodrow@apple.com">
<link rel="match" href="new-content-transform-position-fixed-ref.html">
<script src="/common/rendering-utils.js"></script>
<script src="/common/reftest-wait.js"></script>
<script src="../../../../../resources/ui-helper.js"></script>
<style>
:root {
  background: lightpink;
  box-shadow: 10px 0 0 0 inset red;
}

.box {
  background: lightblue;
  width: 100px;
  height: 100px;
  position: fixed;
  view-transition-name: target;
}

/* We're verifying what we capture, so just display the new contents for 5 minutes.  */
html::view-transition-group(*) { animation-duration: 300s; }
html::view-transition-new(*) { animation: unset; opacity: 1; }
html::view-transition-old(*) { 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 class=box></div>
<div style="height: 1000px;"></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");

async function runTest() {
  await waitForAtLeastOneFrame();

  /* Scroll the doc, target element's element-to-screen transform should not change */
  await new Promise((resolve) => {
    addEventListener("scroll", () => {
      requestAnimationFrame(() => requestAnimationFrame(resolve));
    }, { once: true, capture: true });

    document.documentElement.scrollTop = 500;
  });
  let t = document.startViewTransition(() => {
    requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
  });
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>

/css/css-view-transitions/new-content-transform-position-fixed-ref.html

<!DOCTYPE html>
<html class="reftest-wait">
<title>View transitions: computed transform for position fixed elements doesn't include scroll pos (ref)</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<style>
.box {
  background: lightblue;
  width: 100px;
  height: 100px;
  position: fixed;
}
body { background: lightpink; }
</style>
<div class=box></div>
<div style="height: 1000px;"></div>
<script>
  addEventListener("scroll", () => {
    requestAnimationFrame(() => {
      requestAnimationFrame(() => {
        document.documentElement.classList.remove("reftest-wait");
      });
    });
  }, { once: true, capture: true });
  document.documentElement.scrollTop = 500;
</script>
</html>