Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: c0a9fe94832e4075b7b9eafb62616650f04ff56c
      
https://github.com/WebKit/WebKit/commit/c0a9fe94832e4075b7b9eafb62616650f04ff56c
  Author: Simon Fraser <[email protected]>
  Date:   2025-05-03 (Sat, 03 May 2025)

  Changed paths:
    M Source/WebCore/rendering/style/BorderData.cpp
    M Source/WebCore/rendering/style/BorderData.h
    M Source/WebCore/rendering/style/SVGRenderStyle.cpp
    M Source/WebCore/rendering/style/StyleBackgroundData.cpp
    M Source/WebCore/rendering/style/StyleBackgroundData.h

  Log Message:
  -----------
  Optimize RenderStyle::changeRequiresRepaint() cases where currentColor differs
https://bugs.webkit.org/show_bug.cgi?id=292466
rdar://150557529

Reviewed by Matthieu Dubet.

If style contains currentColor, we need to do more extensive testing in 
`RenderStyle::changeRequiresRepaint()`,
because the objects can be the same, but contain currentColor. However, we can 
optimize for this case by
only testing whether any colors contain `currentColor`, rather than running the 
entire diff.

* Source/WebCore/rendering/style/BorderData.cpp:
(WebCore::BorderData::containsCurrentColor const):
(WebCore::BorderData::isEquivalentForPainting const):
* Source/WebCore/rendering/style/BorderData.h:
* Source/WebCore/rendering/style/SVGRenderStyle.cpp:
(WebCore::SVGRenderStyle::changeRequiresRepaint const):
* Source/WebCore/rendering/style/StyleBackgroundData.cpp:
(WebCore::StyleBackgroundData::isEquivalentForPainting const):
(WebCore::StyleBackgroundData::containsCurrentColor const):
* Source/WebCore/rendering/style/StyleBackgroundData.h:

Canonical link: https://commits.webkit.org/294476@main



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