[webkit-changes] [WebKit/WebKit] 86f7dc: [IFC] Enable non-nested list item with intrusive f...

Thu Dec 22 23:21:29 PST 2022

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 86f7dc6a321754498a2dc2375df199e7bec2dc08
      https://github.com/WebKit/WebKit/commit/86f7dc6a321754498a2dc2375df199e7bec2dc08
  Author: Alan Baradlay <zalan at apple.com>
  Date:   2022-12-22 (Thu, 22 Dec 2022)

  Changed paths:
    A LayoutTests/fast/inline/list-item-with-intrusive-float-expected.html
    A LayoutTests/fast/inline/list-item-with-intrusive-float.html
    M LayoutTests/platform/ios/fast/lists/001-vertical-expected.txt
    M LayoutTests/platform/ios/fast/lists/003-vertical-expected.txt
    M LayoutTests/platform/mac/fast/lists/001-vertical-expected.txt
    M LayoutTests/platform/mac/fast/lists/003-vertical-expected.txt
    M Source/WebCore/layout/integration/LayoutIntegrationCoverage.cpp

  Log Message:
  -----------
  [IFC] Enable non-nested list item with intrusive float for IFC
https://bugs.webkit.org/show_bug.cgi?id=249772

Reviewed by Antti Koivisto.

Nested list items where only the leaf list item has content produce multiple list markers on the same line.
  <!DOCTYPE html>
  <ul><li><ul><li>multiple list items on the same line</li></ul></li></ul>

Such markers interact with intrusive floats in a unique way where they may end up overlapping each other.
While this overlapping behavior is not supported in IFC yet, the simple, non-nested list marker setup should work fine.
(This is a surprisingly common case -e.g. on wikipedia.)

* LayoutTests/fast/inline/list-item-with-intrusive-float-expected.html: Added.
* LayoutTests/fast/inline/list-item-with-intrusive-float.html: Added.
* Source/WebCore/layout/integration/LayoutIntegrationCoverage.cpp:
(WebCore::LayoutIntegration::canUseForChild):

Canonical link: https://commits.webkit.org/258285@main