ladybird/Libraries/LibWeb/CSS/CSSStyleValue.h
Sam Atkins 213a548b1f LibWeb/CSS: Implement CSSStyleValue.parse() and .parseAll()
The "subdivide into iterations" part is left as a FIXME for now, until
we have a way of knowing if a property is a list or not.

The parse_a_css_style_value() helper has an unwieldy return type because
of the requirement that it return either one value or a list of values,
but sticking to the spec here seems worthwhile for now.
2025-08-21 10:21:54 +01:00

48 lines
1.5 KiB
C++

/*
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/Bindings/PlatformObject.h>
namespace Web::CSS {
// https://drafts.css-houdini.org/css-typed-om-1/#cssstylevalue
class CSSStyleValue : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(CSSStyleValue, Bindings::PlatformObject);
GC_DECLARE_ALLOCATOR(CSSStyleValue);
public:
[[nodiscard]] static GC::Ref<CSSStyleValue> create(JS::Realm&, String associated_property, String constructed_from_string);
virtual ~CSSStyleValue() override = default;
virtual void initialize(JS::Realm&) override;
static WebIDL::ExceptionOr<GC::Ref<CSSStyleValue>> parse(JS::VM&, String property, String css_text);
static WebIDL::ExceptionOr<GC::RootVector<GC::Ref<CSSStyleValue>>> parse_all(JS::VM&, String property, String css_text);
virtual String to_string() const;
protected:
explicit CSSStyleValue(JS::Realm&);
private:
explicit CSSStyleValue(JS::Realm&, String associated_property, String constructed_from_string);
enum class ParseMultiple : u8 {
No,
Yes,
};
static WebIDL::ExceptionOr<Variant<GC::Ref<CSSStyleValue>, GC::RootVector<GC::Ref<CSSStyleValue>>>> parse_a_css_style_value(JS::VM&, String property, String css_text, ParseMultiple);
// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssstylevalue-associatedproperty-slot
Optional<String> m_associated_property;
Optional<String> m_constructed_from_string;
};
}