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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,
* 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 "StyleContainIntrinsicSize.h"
#include "CSSPrimitiveValue.h"
#include "StyleBuilderChecking.h"
#include "StylePrimitiveNumericTypes+Blending.h"
namespace WebCore {
namespace Style {
auto CSSValueConversion<ContainIntrinsicSize>::operator()(BuilderState& state, const CSSValue& value) -> ContainIntrinsicSize
{
if (auto* primitiveValue = dynamicDowncast<CSSPrimitiveValue>(value)) {
if (primitiveValue->valueID() == CSSValueNone)
return CSS::Keyword::None { };
if (primitiveValue->isLength()) {
return ContainIntrinsicSize::Length {
primitiveValue->resolveAsLength<float>(state.cssToLengthConversionData().copyWithAdjustedZoom(1.0f))
};
}
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::None { };
}
auto pair = requiredPairDowncast<CSSPrimitiveValue>(state, value);
if (!pair)
return CSS::Keyword::None { };
if (pair->first->valueID() != CSSValueAuto) {
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::None { };
}
if (pair->second->valueID() == CSSValueNone)
return { CSS::Keyword::Auto { }, CSS::Keyword::None { } };
if (Ref second = pair->second; second->isLength()) {
return {
CSS::Keyword::Auto { },
ContainIntrinsicSize::Length {
second->resolveAsLength<float>(state.cssToLengthConversionData().copyWithAdjustedZoom(1.0f))
}
};
}
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::None { };
}
// MARK: - Blending
auto Blending<ContainIntrinsicSize>::canBlend(const ContainIntrinsicSize& a, const ContainIntrinsicSize& b) -> bool
{
return a.type == b.type && a.hasLength();
}
auto Blending<ContainIntrinsicSize>::blend(const ContainIntrinsicSize& a, const ContainIntrinsicSize& b, const BlendingContext& context) -> ContainIntrinsicSize
{
if (context.isDiscrete) {
ASSERT(!context.progress || context.progress == 1);
return context.progress ? b : a;
}
ASSERT(a.type == b.type);
ASSERT(a.hasLength());
return ContainIntrinsicSize { a.type, Style::blend(a.length, b.length, context) };
}
} // namespace Style
} // namespace WebCore
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