/*
 * Copyright (C) 2021 Apple Inc. All rights reserved.
 * Copyright (C) 2026 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 <WebCore/CSSStyleValue.h>
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

class CSSKeywordValue;
class CSSOMKeywordValue;
class CSSValue;

template<typename> class ExceptionOr;

using CSSOMKeywordish = Variant<String, Ref<CSSOMKeywordValue>>;

class CSSOMKeywordValue final : public CSSStyleValue {
    WTF_MAKE_TZONE_ALLOCATED(CSSOMKeywordValue);
public:
    static ExceptionOr<Ref<CSSOMKeywordValue>> create(const String&);

    static ExceptionOr<Ref<CSSOMKeywordValue>> reifyValue(Document&, const CSSValue&);
    static Ref<CSSOMKeywordValue> reifyValue(Document&, const CSSKeywordValue&);

    const String& value() const LIFETIME_BOUND { return m_value; }
    ExceptionOr<void> setValue(const String&);

    CSSStyleValueType styleValueType() const final { return CSSStyleValueType::CSSOMKeywordValue; }

    static Ref<CSSOMKeywordValue> rectifyKeywordish(CSSOMKeywordish&&);

    void serialize(StringBuilder&, OptionSet<SerializationArguments> = { }) const final;
    RefPtr<CSSValue> toCSSValue() const final;

private:
    explicit CSSOMKeywordValue(const String& value)
        : m_value(value)
    {
    }

    String m_value;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::CSSOMKeywordValue)
    static bool isType(const WebCore::CSSStyleValue& styleValue) { return styleValue.styleValueType() == WebCore::CSSStyleValueType::CSSOMKeywordValue; }
SPECIALIZE_TYPE_TRAITS_END()
