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/*
* Copyright (C) 2024 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,
* 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 "CSSPrimitiveNumericTypes.h"
namespace WebCore {
namespace CSS {
struct TwoComponentPositionHorizontal {
std::variant<Keyword::Left, Keyword::Right, Keyword::Center, LengthPercentage<>> offset;
bool operator==(const TwoComponentPositionHorizontal&) const = default;
};
DEFINE_TYPE_WRAPPER_GET(TwoComponentPositionHorizontal, offset);
struct TwoComponentPositionVertical {
std::variant<Keyword::Top, Keyword::Bottom, Keyword::Center, LengthPercentage<>> offset;
bool operator==(const TwoComponentPositionVertical&) const = default;
};
DEFINE_TYPE_WRAPPER_GET(TwoComponentPositionVertical, offset);
using TwoComponentPosition = SpaceSeparatedTuple<TwoComponentPositionHorizontal, TwoComponentPositionVertical>;
using FourComponentPositionHorizontal = SpaceSeparatedTuple<std::variant<Keyword::Left, Keyword::Right>, LengthPercentage<>>;
using FourComponentPositionVertical = SpaceSeparatedTuple<std::variant<Keyword::Top, Keyword::Bottom>, LengthPercentage<>>;
using FourComponentPosition = SpaceSeparatedTuple<FourComponentPositionHorizontal, FourComponentPositionVertical>;
struct Position {
Position(TwoComponentPosition&& twoComponent)
: value { WTFMove(twoComponent) }
{
}
Position(const TwoComponentPosition& twoComponent)
: value { twoComponent }
{
}
Position(FourComponentPosition&& fourComponent)
: value { WTFMove(fourComponent) }
{
}
Position(const FourComponentPosition& fourComponent)
: value { fourComponent }
{
}
Position(std::variant<TwoComponentPosition, FourComponentPosition>&& variant)
: value { WTFMove(variant) }
{
}
template<typename... F> decltype(auto) switchOn(F&&... f) const
{
return WTF::switchOn(value, std::forward<F>(f)...);
}
bool operator==(const Position&) const = default;
std::variant<TwoComponentPosition, FourComponentPosition> value;
};
DEFINE_TYPE_WRAPPER_GET(Position, value);
bool isCenterPosition(const Position&);
} // namespace CSS
} // namespace WebCore
DEFINE_TUPLE_LIKE_CONFORMANCE(WebCore::CSS::TwoComponentPositionHorizontal, 1)
DEFINE_TUPLE_LIKE_CONFORMANCE(WebCore::CSS::TwoComponentPositionVertical, 1)
DEFINE_TUPLE_LIKE_CONFORMANCE(WebCore::CSS::Position, 1)
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