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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 "StyleScrollMargin.h"
#include "ComputedStyleExtractor.h"
#include "LayoutRect.h"
#include "StyleBuilderConverter.h"
#include "StyleBuilderState.h"
namespace WebCore {
namespace Style {
LayoutUnit ScrollMarginEdge::evaluate(LayoutUnit referenceLength) const
{
switch (m_value.type()) {
case LengthType::Fixed:
return LayoutUnit(m_value.value());
case LengthType::Percent:
return LayoutUnit(static_cast<float>(referenceLength * m_value.percent() / 100.0f));
case LengthType::Calculated:
return LayoutUnit(m_value.nonNanCalculatedValue(referenceLength));
case LengthType::FillAvailable:
case LengthType::Auto:
case LengthType::Normal:
case LengthType::Content:
case LengthType::Relative:
case LengthType::Intrinsic:
case LengthType::MinIntrinsic:
case LengthType::MinContent:
case LengthType::MaxContent:
case LengthType::FitContent:
case LengthType::Undefined:
break;
}
RELEASE_ASSERT_NOT_REACHED();
return 0_lu;
}
float ScrollMarginEdge::evaluate(float referenceLength) const
{
switch (m_value.type()) {
case LengthType::Fixed:
return m_value.value();
case LengthType::Percent:
return referenceLength * m_value.percent() / 100.0f;
case LengthType::Calculated:
return m_value.nonNanCalculatedValue(referenceLength);
case LengthType::FillAvailable:
case LengthType::Auto:
case LengthType::Normal:
case LengthType::Content:
case LengthType::Relative:
case LengthType::Intrinsic:
case LengthType::MinIntrinsic:
case LengthType::MinContent:
case LengthType::MaxContent:
case LengthType::FitContent:
case LengthType::Undefined:
break;
}
RELEASE_ASSERT_NOT_REACHED();
return 0.0f;
}
Ref<CSSValue> ScrollMarginEdge::toCSS(const RenderStyle& style) const
{
return ComputedStyleExtractor::zoomAdjustedPixelValueForLength(m_value, style);
}
ScrollMarginEdge scrollMarginEdgeFromCSSValue(const CSSValue& value, BuilderState& state)
{
return ScrollMarginEdge { BuilderConverter::convertLength(state, value) };
}
LayoutBoxExtent extentForRect(const ScrollMargin& margin, const LayoutRect& rect)
{
return LayoutBoxExtent {
Style::evaluate(margin.top(), rect.height()),
Style::evaluate(margin.right(), rect.width()),
Style::evaluate(margin.bottom(), rect.height()),
Style::evaluate(margin.left(), rect.width()),
};
}
} // namespace Style
} // namespace WebCore
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