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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 "StyleTransform.h"
#include "CSSTransformListValue.h"
#include "LayoutSize.h"
#include "RenderBox.h"
#include "StyleBuilderChecking.h"
#include "StyleInterpolationClient.h"
#include "StyleInterpolationContext.h"
#include "TransformOperations.h"
namespace WebCore {
namespace Style {
// MARK: - Conversion
auto CSSValueConversion<Transform>::operator()(BuilderState& state, const CSSValue& value) -> Transform
{
if (value.valueID() == CSSValueNone)
return CSS::Keyword::None { };
RefPtr transformList = requiredDowncast<CSSTransformListValue>(state, value);
if (!transformList)
return CSS::Keyword::None { };
return TransformList {
TransformList::Container::map(*transformList, [&](auto& transform) {
return toStyleFromCSSValue<TransformFunction>(state, transform);
})
};
}
auto CSSValueCreation<Transform>::operator()(CSSValuePool& pool, const RenderStyle& style, const Transform& value) -> Ref<CSSValue>
{
CSSValueListBuilder list;
for (auto& transformFunction : value)
list.append(createCSSValue(pool, style, transformFunction));
if (list.isEmpty())
return createCSSValue(pool, style, CSS::Keyword::None { });
return CSSTransformListValue::create(WTFMove(list));
}
// MARK: - Blending
auto Blending<Transform>::canBlend(const Transform& from, const Transform& to, CompositeOperation compositeOperation) -> bool
{
return Style::canBlend(from.m_value, to.m_value, compositeOperation);
}
auto Blending<Transform>::blend(const Transform& from, const Transform& to, const Interpolation::Context& context) -> Transform
{
auto blendedTransformList = Style::blend(from.m_value, to.m_value, context);
if (blendedTransformList.isEmpty())
return CSS::Keyword::None { };
return Transform { WTFMove(blendedTransformList) };
}
// MARK: - Platform
auto ToPlatform<Transform>::operator()(const Transform& value, const FloatSize& size) -> TransformOperations
{
return TransformOperations { WTF::map(value, [&](auto& transformFunction) {
return Style::toPlatform(transformFunction, size);
}) };
}
} // namespace Style
} // namespace WebCore
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