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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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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 "StyleImageOrNone.h"
#include "AnimationUtilities.h"
#include "StyleBuilderState.h"
namespace WebCore {
namespace Style {
// MARK: - Conversion
auto CSSValueConversion<ImageOrNone>::operator()(BuilderState& state, const CSSValue& value) -> ImageOrNone
{
if (value.valueID() == CSSValueNone)
return CSS::Keyword::None { };
RefPtr image = state.createStyleImage(value);
if (!image)
return CSS::Keyword::None { };
return ImageWrapper { image.releaseNonNull() };
}
// MARK: - Blending
auto Blending<ImageOrNone>::canBlend(const ImageOrNone& a, const ImageOrNone& b) -> bool
{
return !a.isNone() && !b.isNone();
}
auto Blending<ImageOrNone>::blend(const ImageOrNone& a, const ImageOrNone& b, const BlendingContext& context) -> ImageOrNone
{
if (context.isDiscrete) {
ASSERT(!context.progress || context.progress == 1.0);
return context.progress ? b : a;
}
ASSERT(canBlend(a, b));
return Style::blend(*a.tryImage(), *b.tryImage(), context);
}
} // namespace Style
} // namespace WebCore
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