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/*
* Copyright (C) 2024-2025 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,
* 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/CSSPosition.h>
#include <WebCore/FloatPoint.h>
#include <WebCore/StyleLengthWrapper.h>
#include <WebCore/StylePrimitiveNumericTypes.h>
namespace WebCore {
namespace Style {
struct PositionX : LengthWrapperBase<LengthPercentage<>> {
using Base::Base;
};
struct PositionY : LengthWrapperBase<LengthPercentage<>> {
using Base::Base;
};
struct TwoComponentPositionHorizontal {
PositionX offset;
bool operator==(const TwoComponentPositionHorizontal&) const = default;
};
DEFINE_TYPE_WRAPPER_GET(TwoComponentPositionHorizontal, offset);
struct TwoComponentPositionVertical {
PositionY offset;
bool operator==(const TwoComponentPositionVertical&) const = default;
};
DEFINE_TYPE_WRAPPER_GET(TwoComponentPositionVertical, offset);
struct Position {
using X = PositionX;
using Y = PositionY;
X x;
Y y;
Position(X&& x, Y&& y)
: x { WTFMove(x) }
, y { WTFMove(y) }
{
}
Position(const X& x, const Y& y)
: x { x }
, y { y }
{
}
Position(TwoComponentPositionHorizontal&& x, TwoComponentPositionVertical&& y)
: x { WTFMove(x.offset) }
, y { WTFMove(y.offset) }
{
}
Position(const TwoComponentPositionHorizontal& x, const TwoComponentPositionVertical& y)
: x { x.offset }
, y { y.offset }
{
}
Position(FloatPoint point)
: x { PositionX::Fixed { point.x() } }
, y { PositionY::Fixed { point.y() } }
{
}
Position(CSS::ValueLiteral<CSS::LengthUnit::Px> literalX, CSS::ValueLiteral<CSS::LengthUnit::Px> literalY)
: x { literalX }
, y { literalY }
{
}
Position(CSS::ValueLiteral<CSS::PercentageUnit::Percentage> literalX, CSS::ValueLiteral<CSS::PercentageUnit::Percentage> literalY)
: x { literalX }
, y { literalY }
{
}
bool operator==(const Position&) const = default;
};
template<size_t I> const auto& get(const Position& position)
{
if constexpr (!I)
return position.x;
else if constexpr (I == 1)
return position.y;
}
// MARK: - Conversion
template<> struct ToCSS<TwoComponentPositionHorizontal> { auto operator()(const TwoComponentPositionHorizontal&, const RenderStyle&) -> CSS::TwoComponentPositionHorizontal; };
template<> struct ToStyle<CSS::TwoComponentPositionHorizontal> { auto operator()(const CSS::TwoComponentPositionHorizontal&, const BuilderState&) -> TwoComponentPositionHorizontal; };
template<> struct ToCSS<TwoComponentPositionVertical> { auto operator()(const TwoComponentPositionVertical&, const RenderStyle&) -> CSS::TwoComponentPositionVertical; };
template<> struct ToStyle<CSS::TwoComponentPositionVertical> { auto operator()(const CSS::TwoComponentPositionVertical&, const BuilderState&) -> TwoComponentPositionVertical; };
template<> struct ToCSS<Position> { auto operator()(const Position&, const RenderStyle&) -> CSS::Position; };
template<> struct ToStyle<CSS::Position> { auto operator()(const CSS::Position&, const BuilderState&) -> Position; };
template<> struct ToCSS<PositionX> { auto operator()(const PositionX&, const RenderStyle&) -> CSS::PositionX; };
template<> struct ToStyle<CSS::PositionX> { auto operator()(const CSS::PositionX&, const BuilderState&) -> PositionX; };
template<> struct ToCSS<PositionY> { auto operator()(const PositionY&, const RenderStyle&) -> CSS::PositionY; };
template<> struct ToStyle<CSS::PositionY> { auto operator()(const CSS::PositionY&, const BuilderState&) -> PositionY; };
template<> struct CSSValueConversion<Position> { auto operator()(BuilderState&, const CSSValue&) -> Position; };
template<> struct CSSValueConversion<PositionX> { auto operator()(BuilderState&, const CSSValue&) -> PositionX; };
template<> struct CSSValueConversion<PositionY> { auto operator()(BuilderState&, const CSSValue&) -> PositionY; };
// MARK: - Evaluation
template<> struct Evaluation<Position, FloatPoint> {
auto operator()(const Position&, FloatSize, ZoomNeeded) -> FloatPoint;
};
} // namespace Style
} // namespace WebCore
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::PositionX)
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::PositionY)
DEFINE_TUPLE_LIKE_CONFORMANCE_FOR_TYPE_WRAPPER(WebCore::Style::TwoComponentPositionHorizontal)
DEFINE_TUPLE_LIKE_CONFORMANCE_FOR_TYPE_WRAPPER(WebCore::Style::TwoComponentPositionVertical)
DEFINE_SPACE_SEPARATED_TUPLE_LIKE_CONFORMANCE(WebCore::Style::Position, 2)
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