[webkit-changes] [WebKit/WebKit] 2edd71: [css-anchor-position-1] Implement flip-start try-t...

[Antti Koivisto]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2edd71a09170916de0af9ba884613ae36606f29a
      https://github.com/WebKit/WebKit/commit/2edd71a09170916de0af9ba884613ae36606f29a
  Author: Antti Koivisto <antti at apple.com>
  Date:   2025-02-25 (Tue, 25 Feb 2025)

  Changed paths:
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-try-transition-flip-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-anchor-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-base-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-basic-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-margin-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-percentage-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-sizing-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-wm-expected.txt
    M Source/WebCore/style/AnchorPositionEvaluator.cpp

  Log Message:
  -----------
  [css-anchor-position-1] Implement flip-start try-tactic
https://bugs.webkit.org/show_bug.cgi?id=288475
rdar://145561307

Reviewed by Alan Baradlay.

* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-try-transition-flip-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-anchor-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-base-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-basic-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-margin-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-percentage-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-sizing-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/try-tactic-wm-expected.txt:
* Source/WebCore/style/AnchorPositionEvaluator.cpp:
(WebCore::Style::swapSideForTryTactics):

Factor side swapping into a function. Order matters with flip-start so loop through the vector.

(WebCore::Style::computeInsetValue):

Handle flipping of sides and percentages.

(WebCore::Style::AnchorPositionEvaluator::evaluateSize):

Flip directions in anchor-size() if needed.

(WebCore::Style::flipStart):

Flip properties between inline and block directions.

(WebCore::Style::AnchorPositionEvaluator::resolvePositionTryFallbackProperty):

Canonical link: https://commits.webkit.org/291023@main



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