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/*
* 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. ``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/StyleLengthWrapper.h>
namespace WebCore {
namespace Style {
struct MaskBorderWidthValueLength : LengthWrapperBase<LengthPercentage<CSS::NonnegativeUnzoomed>> {
using Base::Base;
};
// <mask-border-width-value> = <length-percentage [0,∞]> | <number [0,∞]> | auto
struct MaskBorderWidthValue {
using LengthPercentage = MaskBorderWidthValueLength;
using Number = Style::Number<CSS::Nonnegative, float>;
MaskBorderWidthValue(CSS::Keyword::Auto keyword)
: m_value { keyword }
{
}
MaskBorderWidthValue(LengthPercentage&& length)
: m_value { WTFMove(length) }
{
}
MaskBorderWidthValue(Number number)
: m_value { number }
{
}
bool isAuto() const { return WTF::holdsAlternative<CSS::Keyword::Auto>(m_value); }
bool isLengthPercentage() const { return WTF::holdsAlternative<LengthPercentage>(m_value); }
bool isNumber() const { return WTF::holdsAlternative<Number>(m_value); }
std::optional<LengthPercentage::Fixed> tryFixed() const
{
if (auto* length = std::get_if<LengthPercentage>(&m_value))
return length->tryFixed();
return { };
}
bool isFixed() const
{
if (auto* length = std::get_if<LengthPercentage>(&m_value))
return length->isFixed();
return false;
}
bool isCalculated() const
{
if (auto* length = std::get_if<LengthPercentage>(&m_value))
return length->isCalculated();
return false;
}
template<typename... F> decltype(auto) switchOn(F&&... f) const
{
return WTF::switchOn(m_value, std::forward<F>(f)...);
}
bool operator==(const MaskBorderWidthValue&) const = default;
bool hasSameType(const MaskBorderWidthValue& other) const { return m_value.index() == other.m_value.index(); }
private:
friend struct Blending<MaskBorderWidthValue>;
Variant<CSS::Keyword::Auto, LengthPercentage, Number> m_value { CSS::Keyword::Auto { } };
};
// <'mask-border-width'> = [ <length-percentage [0,∞]> | <number [0,∞]> | auto ]{1,4}
// https://drafts.fxtf.org/css-masking-1/#propdef-mask-border-width
struct MaskBorderWidth {
MinimallySerializingSpaceSeparatedRectEdges<MaskBorderWidthValue> values { CSS::Keyword::Auto { } };
bool operator==(const MaskBorderWidth&) const = default;
};
DEFINE_TYPE_WRAPPER_GET(MaskBorderWidth, values);
// MARK: - Conversion
template<> struct CSSValueConversion<MaskBorderWidth> { auto operator()(BuilderState&, const CSSValue&) -> MaskBorderWidth; };
template<> struct CSSValueCreation<MaskBorderWidth> { auto operator()(CSSValuePool&, const RenderStyle&, const MaskBorderWidth&) -> Ref<CSSValue>; };
// MARK: - Blending
template<> struct Blending<MaskBorderWidthValue> {
auto canBlend(const MaskBorderWidthValue&, const MaskBorderWidthValue&) -> bool;
auto requiresInterpolationForAccumulativeIteration(const MaskBorderWidthValue&, const MaskBorderWidthValue&) -> bool;
auto blend(const MaskBorderWidthValue&, const MaskBorderWidthValue&, const BlendingContext&) -> MaskBorderWidthValue;
};
template<> struct Blending<MaskBorderWidth> {
auto canBlend(const MaskBorderWidth&, const MaskBorderWidth&) -> bool;
auto requiresInterpolationForAccumulativeIteration(const MaskBorderWidth&, const MaskBorderWidth&) -> bool;
auto blend(const MaskBorderWidth&, const MaskBorderWidth&, const BlendingContext&) -> MaskBorderWidth;
};
} // namespace Style
} // namespace WebCore
DEFINE_TUPLE_LIKE_CONFORMANCE_FOR_TYPE_WRAPPER(WebCore::Style::MaskBorderWidth)
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::MaskBorderWidthValueLength)
DEFINE_VARIANT_LIKE_CONFORMANCE(WebCore::Style::MaskBorderWidthValue)
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