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/*
* Copyright (C) 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. AND ITS CONTRIBUTORS ``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 ITS 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 "StylePrimitiveNumericTypes.h"
#include "StyleValueTypes.h"
namespace WebCore {
namespace Style {
// <'offset-rotate'> = [ auto | reverse ] || <angle>
// https://drafts.fxtf.org/motion/#propdef-offset-rotate
struct OffsetRotate {
using Angle = Style::Angle<CSS::All, float>;
constexpr OffsetRotate(CSS::Keyword::Auto keyword) : m_angle { 0 }, m_autoKeyword { keyword } { }
constexpr OffsetRotate(std::optional<CSS::Keyword::Auto> autoKeyword, Angle angle) : m_angle(angle), m_autoKeyword(autoKeyword) { }
bool hasAuto() const { return m_autoKeyword.has_value(); }
std::optional<CSS::Keyword::Auto> autoKeyword() const { return m_autoKeyword; }
Angle angle() const { return m_angle; }
template<typename... F> decltype(auto) switchOn(F&&... f) const
{
auto visitor = WTF::makeVisitor(std::forward<F>(f)...);
if (m_autoKeyword)
return visitor(SpaceSeparatedTuple { *m_autoKeyword, m_angle });
return visitor(m_angle);
}
constexpr bool operator==(const OffsetRotate&) const = default;
private:
Angle m_angle;
std::optional<CSS::Keyword::Auto> m_autoKeyword;
};
// MARK: - Conversion
template<> struct CSSValueConversion<OffsetRotate> { auto operator()(BuilderState&, const CSSValue&) -> OffsetRotate; };
// MARK: - Blending
template<> struct Blending<OffsetRotate> {
auto canBlend(const OffsetRotate&, const OffsetRotate&) -> bool;
auto blend(const OffsetRotate&, const OffsetRotate&, const BlendingContext&) -> OffsetRotate;
};
// MARK: - Logging
WTF::TextStream& operator<<(WTF::TextStream&, const OffsetRotate&);
} // namespace Style
} // namespace WebCore
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::OffsetRotate)
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