[webkit-changes] [WebKit/WebKit] dba893: [view-transitions] Update callback can incorrectly...

[Tim Nguyen]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: dba893bca0167a5d27737425e0a2b3faca4d05dd
      https://github.com/WebKit/WebKit/commit/dba893bca0167a5d27737425e0a2b3faca4d05dd
  Author: Tim Nguyen <ntim at apple.com>
  Date:   2024-09-04 (Wed, 04 Sep 2024)

  Changed paths:
    A LayoutTests/imported/w3c/web-platform-tests/css/css-view-transitions/update-callback-called-once-expected.xht
    A LayoutTests/imported/w3c/web-platform-tests/css/css-view-transitions/update-callback-called-once.html
    M Source/WebCore/dom/ViewTransition.cpp

  Log Message:
  -----------
  [view-transitions] Update callback can incorrectly be called multiple times
https://bugs.webkit.org/show_bug.cgi?id=279087
rdar://135226640

Reviewed by Matt Woodrow.

This is currently a spec bug, see:
- https://github.com/w3c/csswg-drafts/pull/10826
- https://github.com/w3c/csswg-drafts/issues/10822

* LayoutTests/imported/w3c/web-platform-tests/css/css-view-transitions/update-callback-called-once-expected.xht: Added.
* LayoutTests/imported/w3c/web-platform-tests/css/css-view-transitions/update-callback-called-once.html: Added.
* Source/WebCore/dom/ViewTransition.cpp:
(WebCore::ViewTransition::callUpdateCallback):

Canonical link: https://commits.webkit.org/283167@main



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