[Webkit-unassigned] [Bug 247895] New: [web-animations] changing writing-mode or direction on an element that has an animation targeting a logical property should ensure animation resolution is scheduled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247895

            Bug ID: 247895
           Summary: [web-animations] changing writing-mode or direction on
                    an element that has an animation targeting a logical
                    property should ensure animation resolution is
                    scheduled
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: graouts at webkit.org
                CC: dino at apple.com, graouts at apple.com

We are failing this test in web-animations/timing-model/timelines/update-and-send-events-replacement.html:

promise_test(async t => {
  const div = createDiv(t);

  const animA = div.animate(
    { marginTop: '10px' },
    { duration: 1, fill: 'forwards' }
  );
  const animB = div.animate(
    { marginInlineStart: '20px' },
    { duration: 1, fill: 'forwards' }
  );
  await animA.finished;

  assert_equals(animA.replaceState, 'active');
  assert_equals(animB.replaceState, 'active');

  div.style.writingMode = 'vertical-rl';

  assert_equals(animA.replaceState, 'active');
  assert_equals(animB.replaceState, 'active');

  await waitForNextFrame();

  assert_equals(animA.replaceState, 'removed');
  assert_equals(animB.replaceState, 'active');
}, 'Removes an animation by another animation using logical properties after updating the context');

We fail the second-to-last assertion because we fail to schedule an animation update after changing writing-mode and thus don't run the procedure to remove replaced animations.

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