[webkit-changes] [WebKit/WebKit] de3095: [view-transitions] Async animation of snapshot pos...

[mattwoodrow]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: de30955ecaa15582965bf1863c2c13f130e4db16
      https://github.com/WebKit/WebKit/commit/de30955ecaa15582965bf1863c2c13f130e4db16
  Author: Matt Woodrow <mattwoodrow at apple.com>
  Date:   2024-05-21 (Tue, 21 May 2024)

  Changed paths:
    M Source/WebCore/animation/KeyframeEffect.cpp

  Log Message:
  -----------
  [view-transitions] Async animation of snapshot position via transform looks jumpy with sync animation of size
https://bugs.webkit.org/show_bug.cgi?id=274437
<rdar://128441578>

Reviewed by Antoine Quint.

The default pseudo element structure results in an asynchronous animation of the snapshot position via
transform, and a sync animation of the width/height.

If there's any slowness at all on the main thread, then this looks super jumpy.

* Source/WebCore/animation/KeyframeEffect.cpp:
(WebCore::KeyframeEffect::computeHasSizeDependentTransform):

Canonical link: https://commits.webkit.org/279093@main



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