source: webkit/trunk/Source/WebCore/css/ContainerQueryParser.h

/*
 * Copyright (C) 2022 Apple Inc. All rights reserved.
 *
 * 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,
 * 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 "CSSParserContext.h"
#include "CSSParserToken.h"
#include "ContainerQuery.h"

namespace WebCore {

class CSSParserTokenRange;

class ContainerQueryParser {
public:
    static std::optional<FilteredContainerQuery> consumeFilteredContainerQuery(CSSParserTokenRange&, const CSSParserContext&);

private:
    std::optional<FilteredContainerQuery> consumeFilteredContainerQuery(CSSParserTokenRange&);
    std::optional<CQ::ContainerQuery> consumeContainerQuery(CSSParserTokenRange&);
    template<typename ConditionType> std::optional<ConditionType> consumeCondition(CSSParserTokenRange&);
    std::optional<CQ::SizeFeature> consumeSizeFeature(CSSParserTokenRange&);
    std::optional<CQ::SizeFeature> consumePlainSizeFeature(CSSParserTokenRange&);
    std::optional<CQ::SizeFeature> consumeRangeSizeFeature(CSSParserTokenRange&);
    RefPtr<CSSValue> consumeValue(CSSParserTokenRange&);

    ContainerQueryParser(const CSSParserContext& context)
        : m_context(context) { }

    const CSSParserContext m_context;

    OptionSet<CQ::Axis> m_requiredAxes;
};

}