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/*
* Copyright (C) 2015-2021 Apple Inc. All rights reserved.
* Copyright (C) 2025 Samuel Weinig <sam@webkit.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CSSValue.h"
#include "CSSVariableData.h"
#include "CSSVariableReferenceValue.h"
#include "CSSWideKeyword.h"
namespace WebCore {
class CSSParserToken;
class CSSCustomPropertyValue final : public CSSValue {
public:
using VariantValue = Variant<
Ref<CSSVariableReferenceValue>,
Ref<CSSVariableData>,
CSSWideKeyword
>;
static Ref<CSSCustomPropertyValue> createEmpty(const AtomString& name);
static Ref<CSSCustomPropertyValue> createUnresolved(const AtomString& name, Ref<CSSVariableReferenceValue>&&);
static Ref<CSSCustomPropertyValue> createSyntaxAll(const AtomString& name, Ref<CSSVariableData>&&);
static Ref<CSSCustomPropertyValue> createWithCSSWideKeyword(const AtomString& name, CSSWideKeyword);
const AtomString& name() const { return m_name; }
const VariantValue& value() const { return m_value; }
Ref<const CSSVariableData> asVariableData() const;
bool isCurrentColor() const;
bool isVariableReference() const;
bool isVariableData() const;
bool isCSSWideKeyword() const;
std::optional<CSSWideKeyword> tryCSSWideKeyword() const;
String customCSSText(const CSS::SerializationContext&) const;
bool equals(const CSSCustomPropertyValue&) const;
IterationStatus customVisitChildren(NOESCAPE const Function<IterationStatus(CSSValue&)>&) const;
private:
CSSCustomPropertyValue(const AtomString& name, VariantValue&& value)
: CSSValue(ClassType::CustomProperty)
, m_name(name)
, m_value(WTFMove(value))
{
}
const Vector<CSSParserToken>& tokens() const;
const AtomString m_name;
const VariantValue m_value;
mutable String m_cachedCSSText;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSCustomPropertyValue, isCustomPropertyValue())
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