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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS CONTRIBUTORS
* 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.
*/
#pragma once
namespace WebCore {
namespace Layout {
class LogicalFlexItem {
public:
struct MainAxisGeometry {
LayoutUnit margin() const { return marginStart.value_or(0_lu) + marginEnd.value_or(0_lu); }
std::optional<LayoutUnit> definiteFlexBasis;
LayoutUnit maximumUsedSize;
LayoutUnit minimumUsedSize;
std::optional<LayoutUnit> marginStart;
std::optional<LayoutUnit> marginEnd;
LayoutUnit borderAndPadding;
};
struct CrossAxisGeometry {
LayoutUnit margin() const { return marginStart.value_or(0_lu) + marginEnd.value_or(0_lu); }
bool hasNonAutoMargins() const { return marginStart && marginEnd; }
std::optional<LayoutUnit> definiteSize;
LayoutUnit ascent;
LayoutUnit descent;
std::optional<LayoutUnit> maximumSize;
std::optional<LayoutUnit> minimumSize;
std::optional<LayoutUnit> marginStart;
std::optional<LayoutUnit> marginEnd;
LayoutUnit borderAndPadding;
bool hasSizeAuto { false };
};
LogicalFlexItem(const ElementBox&, const MainAxisGeometry&, const CrossAxisGeometry&, bool hasAspectRatio, bool isOrhogonal);
LogicalFlexItem() = default;
const MainAxisGeometry& mainAxis() const { return m_mainAxisGeometry; }
const CrossAxisGeometry& crossAxis() const { return m_crossAxisGeometry; }
float growFactor() const { return style().flexGrow(); }
float shrinkFactor() const { return style().flexShrink(); }
bool hasContentFlexBasis() const { return style().flexBasis().isContent(); }
bool hasAvailableSpaceDependentFlexBasis() const { return false; }
bool hasAspectRatio() const { return m_hasAspectRatio; }
bool isOrhogonal() const { return m_isOrhogonal; }
bool isContentBoxBased() const { return style().boxSizing() == BoxSizing::ContentBox; }
const ElementBox& layoutBox() const { return *m_layoutBox; }
const RenderStyle& style() const { return layoutBox().style(); }
private:
CheckedPtr<const ElementBox> m_layoutBox;
MainAxisGeometry m_mainAxisGeometry;
CrossAxisGeometry m_crossAxisGeometry;
bool m_hasAspectRatio { false };
bool m_isOrhogonal { false };
};
inline LogicalFlexItem::LogicalFlexItem(const ElementBox& flexItem, const MainAxisGeometry& mainGeometry, const CrossAxisGeometry& crossGeometry, bool hasAspectRatio, bool isOrhogonal)
: m_layoutBox(flexItem)
, m_mainAxisGeometry(mainGeometry)
, m_crossAxisGeometry(crossGeometry)
, m_hasAspectRatio(hasAspectRatio)
, m_isOrhogonal(isOrhogonal)
{
}
}
}
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