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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 "StyleScrollPadding.h"
#include "LayoutRect.h"
#include "StylePrimitiveNumericTypes+Evaluation.h"
namespace WebCore {
namespace Style {
// MARK: - Evaluation
auto Evaluation<ScrollPaddingEdge, LayoutUnit>::operator()(const ScrollPaddingEdge& edge, LayoutUnit referenceLength, ZoomNeeded token) -> LayoutUnit
{
return WTF::switchOn(edge,
[&](const ScrollPaddingEdge::Fixed& fixed) {
return evaluate<LayoutUnit>(fixed, token);
},
[&](const ScrollPaddingEdge::Percentage& percentage) {
return evaluate<LayoutUnit>(percentage, referenceLength);
},
[&](const ScrollPaddingEdge::Calc& calculated) {
return evaluate<LayoutUnit>(calculated, referenceLength, token);
},
[&](const CSS::Keyword::Auto&) {
return 0_lu;
}
);
}
auto Evaluation<ScrollPaddingEdge, float>::operator()(const ScrollPaddingEdge& edge, float referenceLength, ZoomNeeded token) -> float
{
return WTF::switchOn(edge,
[&](const ScrollPaddingEdge::Fixed& fixed) {
return evaluate<float>(fixed, token);
},
[&](const ScrollPaddingEdge::Percentage& percentage) {
return evaluate<float>(percentage, referenceLength);
},
[&](const ScrollPaddingEdge::Calc& calculated) {
return evaluate<float>(calculated, referenceLength, token);
},
[&](const CSS::Keyword::Auto&) {
return 0.0f;
}
);
}
LayoutBoxExtent extentForRect(const ScrollPaddingBox& padding, const LayoutRect& rect, ZoomNeeded token)
{
return LayoutBoxExtent {
evaluate<LayoutUnit>(padding.top(), rect.height(), token),
evaluate<LayoutUnit>(padding.right(), rect.width(), token),
evaluate<LayoutUnit>(padding.bottom(), rect.height(), token),
evaluate<LayoutUnit>(padding.left(), rect.width(), token),
};
}
} // namespace Style
} // namespace WebCore
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