[webkit-changes] [WebKit/WebKit] f4dfe3: CSS Nesting: serialization support for CSSOM

[Matthieu Dubet]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: f4dfe341bdcccb74b460130f620df70c8c9b561c
      https://github.com/WebKit/WebKit/commit/f4dfe341bdcccb74b460130f620df70c8c9b561c
  Author: Matthieu Dubet <m_dubet at apple.com>
  Date:   2023-03-27 (Mon, 27 Mar 2023)

  Changed paths:
    M LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/cssom-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/invalid-inner-rules-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/parsing-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/serialize-group-rules-with-decls.tentative-expected.txt
    M Source/WebCore/css/CSSGroupingRule.cpp
    M Source/WebCore/css/CSSSelectorList.cpp
    M Source/WebCore/css/CSSSelectorList.h
    M Source/WebCore/css/CSSStyleRule.cpp
    M Source/WebCore/css/CSSStyleRule.h
    M Source/WebCore/css/CSSStyleRule.idl

  Log Message:
  -----------
  CSS Nesting: serialization support for CSSOM
https://bugs.webkit.org/show_bug.cgi?id=254432
rdar://107190613

Reviewed by Antti Koivisto.

This implement the CSSStyleRule serialization (the read-only part of CSSOM).

https://w3c.github.io/csswg-drafts/cssom-1/#serialize-a-css-rule

It also implements the lifting-up (in the parent rule) of properties when the style rule contains only "&"
as selector list.

* LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/cssom-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/invalid-inner-rules-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/parsing-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-nesting/serialize-group-rules-with-decls.tentative-expected.txt:
* Source/WebCore/css/CSSGroupingRule.cpp:
(WebCore::CSSGroupingRule::deleteRule):
(WebCore::CSSGroupingRule::cssTextForDeclsAndRules const):
* Source/WebCore/css/CSSSelectorList.cpp:
(WebCore::CSSSelectorList::hasOnlyNestingSelector const):
* Source/WebCore/css/CSSSelectorList.h:
* Source/WebCore/css/CSSStyleRule.cpp:
(WebCore::CSSStyleRule::cssText const):
(WebCore::CSSStyleRule::cssTextForDeclsAndRules const):
(WebCore::CSSStyleRule::reattach):
(WebCore::CSSStyleRule::insertRule):
(WebCore::CSSStyleRule::deleteRule):
* Source/WebCore/css/CSSStyleRule.h:
* Source/WebCore/css/CSSStyleRule.idl:

Canonical link: https://commits.webkit.org/262177@main