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LibWeb/CSS: Implement CSSUnparsedValue and CSSVariableReferenceValue

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We don't serialize these the way WPT expects, because we don't implement
the comment-insertion rules from CSS-Syntax. We don't implement that
for regular serialization either, so it's something we can worry about
later.
This commit is contained in:
Sam Atkins
2025-08-14 16:43:12 +01:00
parent 213a548b1f
commit 6428c9990d
Notes: github-actions[bot] 2025-08-21 09:23:12 +00:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/LadybirdBrowser/ladybird/commit/6428c9990d2
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5901
21 changed files with 442 additions and 35 deletions
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42
Libraries/LibWeb/CSS/CSSVariableReferenceValue.h Normal file
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/*
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <LibWeb/Bindings/PlatformObject.h>
namespace Web::CSS {
class CSSVariableReferenceValue : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(CSSVariableReferenceValue, Bindings::PlatformObject);
GC_DECLARE_ALLOCATOR(CSSVariableReferenceValue);
public:
[[nodiscard]] static GC::Ref<CSSVariableReferenceValue> create(JS::Realm&, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback = nullptr);
static WebIDL::ExceptionOr<GC::Ref<CSSVariableReferenceValue>> construct_impl(JS::Realm&, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback);
virtual ~CSSVariableReferenceValue() override;
String variable() const;
WebIDL::ExceptionOr<void> set_variable(FlyString);
GC::Ptr<CSSUnparsedValue> fallback() const;
WebIDL::ExceptionOr<void> set_fallback(GC::Ptr<CSSUnparsedValue>);
String to_string() const;
private:
CSSVariableReferenceValue(JS::Realm&, FlyString variable, GC::Ptr<CSSUnparsedValue> fallback);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Visitor&) override;
FlyString m_variable;
GC::Ptr<CSSUnparsedValue> m_fallback;
};
}