Source/WebCore/css/StyleRuleFunction.h

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#pragma once

#include "CSSCustomPropertySyntax.h"
#include "CSSVariableData.h"
#include "StyleRule.h"

namespace WebCore {

class MutableStyleProperties;

class StyleRuleFunction final : public StyleRuleGroup {
public:
    struct Parameter {
        AtomString name;
        CSSCustomPropertySyntax type;
        RefPtr<CSSVariableData> defaultValue;
    };

    static Ref<StyleRuleFunction> create(const AtomString& name, Vector<Parameter>&&, CSSCustomPropertySyntax&& returnType, Vector<Ref<StyleRuleBase>>&&);

    Ref<StyleRuleFunction> copy() const { return adoptRef(*new StyleRuleFunction(*this)); }

    AtomString name() const { return m_name; }
    const Vector<Parameter>& parameters() const { return m_parameters; }
    const CSSCustomPropertySyntax& returnType() const { return m_returnType; }

private:
    StyleRuleFunction(const AtomString& name, Vector<Parameter>&&, CSSCustomPropertySyntax&& returnType, Vector<Ref<StyleRuleBase>>&&);
    StyleRuleFunction(const StyleRuleFunction&);

    const AtomString m_name;
    const Vector<Parameter> m_parameters;
    const CSSCustomPropertySyntax m_returnType;
};

class StyleRuleFunctionDeclarations : public StyleRuleBase {
public:
    static Ref<StyleRuleFunctionDeclarations> create(Ref<StyleProperties>&& properties)
    {
        return adoptRef(*new StyleRuleFunctionDeclarations(WTF::move(properties)));
    }

    Ref<StyleRuleFunctionDeclarations> copy() const { return adoptRef(*new StyleRuleFunctionDeclarations(*this)); }

    // Only contains property "result" and custom properties.
    const StyleProperties& properties() const { return m_properties.get(); }
    MutableStyleProperties& mutableProperties();

private:
    StyleRuleFunctionDeclarations(Ref<StyleProperties>&&);
    StyleRuleFunctionDeclarations(const StyleRuleFunctionDeclarations&);

    Ref<StyleProperties> m_properties;
};

}

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::StyleRuleFunction)
    static bool isType(const WebCore::StyleRuleBase& rule) { return rule.type() == WebCore::StyleRuleType::Function; }
SPECIALIZE_TYPE_TRAITS_END()

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::StyleRuleFunctionDeclarations)
    static bool isType(const WebCore::StyleRuleBase& rule) { return rule.type() == WebCore::StyleRuleType::FunctionDeclarations; }
SPECIALIZE_TYPE_TRAITS_END()