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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.
*/
#include "config.h"
#include "StyleMaskBorderSlice.h"
#include "AnimationUtilities.h"
#include "CSSBorderImageSliceValue.h"
#include "CSSPrimitiveValue.h"
#include "StyleBuilderChecking.h"
#include "StylePrimitiveNumericTypes+Blending.h"
#include "StylePrimitiveNumericTypes+CSSValueConversion.h"
#include "StylePrimitiveNumericTypes+CSSValueCreation.h"
namespace WebCore {
namespace Style {
using namespace CSS::Literals;
// MARK: - Conversion
static MaskBorderSliceValue convertMaskBorderSliceValue(BuilderState& state, const CSSValue& value)
{
RefPtr primitiveValue = requiredDowncast<CSSPrimitiveValue>(state, value);
if (!primitiveValue)
return MaskBorderSliceValue { 0_css_number };
if (primitiveValue->isNumber())
return toStyleFromCSSValue<MaskBorderSliceValue::Number>(state, *primitiveValue);
return toStyleFromCSSValue<MaskBorderSliceValue::Percentage>(state, *primitiveValue);
}
auto CSSValueConversion<MaskBorderSlice>::operator()(BuilderState& state, const CSSValue& value) -> MaskBorderSlice
{
if (RefPtr sliceValue = dynamicDowncast<CSSBorderImageSliceValue>(value)) {
auto& slices = sliceValue->slices();
return MaskBorderSlice {
.values = {
convertMaskBorderSliceValue(state, slices.top()),
convertMaskBorderSliceValue(state, slices.right()),
convertMaskBorderSliceValue(state, slices.bottom()),
convertMaskBorderSliceValue(state, slices.left()),
},
.fill = sliceValue->fill() ? std::make_optional(CSS::Keyword::Fill { }) : std::nullopt,
};
}
// Values coming from CSS Typed OM may not have been converted to a CSSBorderImageSliceValue.
auto sliceValue = convertMaskBorderSliceValue(state, value);
return MaskBorderSlice {
.values = {
sliceValue,
sliceValue,
sliceValue,
sliceValue,
},
.fill = std::nullopt
};
}
auto CSSValueCreation<MaskBorderSlice>::operator()(CSSValuePool& pool, const RenderStyle& style, const MaskBorderSlice& value) -> Ref<CSSValue>
{
return CSSBorderImageSliceValue::create({
createCSSValue(pool, style, value.values.top()),
createCSSValue(pool, style, value.values.right()),
createCSSValue(pool, style, value.values.bottom()),
createCSSValue(pool, style, value.values.left()),
}, value.fill.has_value());
}
// MARK: - Blending
inline auto Blending<MaskBorderSliceValue>::canBlend(const MaskBorderSliceValue& a, const MaskBorderSliceValue& b) -> bool
{
return a.hasSameType(b);
}
inline auto Blending<MaskBorderSliceValue>::requiresInterpolationForAccumulativeIteration(const MaskBorderSliceValue& a, const MaskBorderSliceValue& b) -> bool
{
return !a.hasSameType(b);
}
inline auto Blending<MaskBorderSliceValue>::blend(const MaskBorderSliceValue& a, const MaskBorderSliceValue& b, const BlendingContext& context) -> MaskBorderSliceValue
{
if (context.isDiscrete) {
ASSERT(!context.progress || context.progress == 1);
return context.progress ? b : a;
}
return WTF::visit(WTF::makeVisitor(
[&]<typename T>(const T& a, const T& b) -> MaskBorderSliceValue {
return Style::blend(a, b, context);
},
[&](const auto&, const auto&) -> MaskBorderSliceValue {
RELEASE_ASSERT_NOT_REACHED();
}
), a.m_value, b.m_value);
}
auto Blending<MaskBorderSlice>::canBlend(const MaskBorderSlice& a, const MaskBorderSlice& b) -> bool
{
if (a.fill != b.fill)
return false;
return Style::canBlend(a.values.top(), b.values.top())
&& Style::canBlend(a.values.right(), b.values.right())
&& Style::canBlend(a.values.bottom(), b.values.bottom())
&& Style::canBlend(a.values.left(), b.values.left());
}
auto Blending<MaskBorderSlice>::requiresInterpolationForAccumulativeIteration(const MaskBorderSlice& a, const MaskBorderSlice& b) -> bool
{
return Style::requiresInterpolationForAccumulativeIteration(a.values.top(), b.values.top())
&& Style::requiresInterpolationForAccumulativeIteration(a.values.right(), b.values.right())
&& Style::requiresInterpolationForAccumulativeIteration(a.values.bottom(), b.values.bottom())
&& Style::requiresInterpolationForAccumulativeIteration(a.values.left(), b.values.left());
}
auto Blending<MaskBorderSlice>::blend(const MaskBorderSlice& a, const MaskBorderSlice& b, const BlendingContext& context) -> MaskBorderSlice
{
if (context.isDiscrete) {
ASSERT(!context.progress || context.progress == 1);
return context.progress ? b : a;
}
return MaskBorderSlice {
.values = {
Style::blend(a.values.top(), b.values.top(), context),
Style::blend(a.values.right(), b.values.right(), context),
Style::blend(a.values.bottom(), b.values.bottom(), context),
Style::blend(a.values.left(), b.values.left(), context),
},
.fill = (!context.progress || !context.isDiscrete ? a : b).fill,
};
}
} // namespace Style
} // namespace WebCore
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