root/Source/core/rendering/style/GridTrackSize.h

INCLUDED FROM

/*
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 * modification, are permitted provided that the following conditions are
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 *
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#ifndef GridTrackSize_h
#define GridTrackSize_h

#include "core/rendering/style/GridLength.h"

namespace WebCore {

enum GridTrackSizeType {
    LengthTrackSizing,
    MinMaxTrackSizing
};

class GridTrackSize {
public:
    GridTrackSize(const GridLength& length)
        : m_type(LengthTrackSizing)
        , m_minTrackBreadth(length)
        , m_maxTrackBreadth(length)
        , m_minTrackBreadthIsMinOrMaxContent(false)
        , m_minTrackBreadthIsMaxContent(false)
        , m_maxTrackBreadthIsMinOrMaxContent(false)
        , m_maxTrackBreadthIsMaxContent(false)
    {
        cacheMinMaxTrackBreadthTypes();
    }

    GridTrackSize(const GridLength& minTrackBreadth, const GridLength& maxTrackBreadth)
        : m_type(MinMaxTrackSizing)
        , m_minTrackBreadth(minTrackBreadth)
        , m_maxTrackBreadth(maxTrackBreadth)
        , m_minTrackBreadthIsMinOrMaxContent(false)
        , m_minTrackBreadthIsMaxContent(false)
        , m_maxTrackBreadthIsMinOrMaxContent(false)
        , m_maxTrackBreadthIsMaxContent(false)
    {
        cacheMinMaxTrackBreadthTypes();
    }

    const GridLength& length() const
    {
        ASSERT(m_type == LengthTrackSizing);
        ASSERT(m_minTrackBreadth == m_maxTrackBreadth);
        const GridLength& minTrackBreadth = m_minTrackBreadth;
        return minTrackBreadth;
    }

    const GridLength& minTrackBreadth() const
    {
        if (m_minTrackBreadth.isLength() && m_minTrackBreadth.length().isAuto()) {
            DEFINE_STATIC_LOCAL(GridLength, minContent, (Length(MinContent)));
            return minContent;
        }
        return m_minTrackBreadth;
    }

    const GridLength& maxTrackBreadth() const
    {
        if (m_maxTrackBreadth.isLength() && m_maxTrackBreadth.length().isAuto()) {
            DEFINE_STATIC_LOCAL(GridLength, maxContent, (Length(MaxContent)));
            return maxContent;
        }
        return m_maxTrackBreadth;
    }

    GridTrackSizeType type() const { return m_type; }

    bool isContentSized() const { return m_minTrackBreadth.isContentSized() || m_maxTrackBreadth.isContentSized(); }

    bool isPercentage() const { return m_type == LengthTrackSizing && length().isLength() && length().length().isPercent(); }

    bool operator==(const GridTrackSize& other) const
    {
        return m_type == other.m_type && m_minTrackBreadth == other.m_minTrackBreadth && m_maxTrackBreadth == other.m_maxTrackBreadth;
    }

    void cacheMinMaxTrackBreadthTypes()
    {
        m_minTrackBreadthIsMaxContent = minTrackBreadth().isLength() && minTrackBreadth().length().isMaxContent();
        m_minTrackBreadthIsMinOrMaxContent = m_minTrackBreadthIsMaxContent || (minTrackBreadth().isLength() && minTrackBreadth().length().isMinContent());
        m_maxTrackBreadthIsMaxContent = maxTrackBreadth().isLength() && maxTrackBreadth().length().isMaxContent();
        m_maxTrackBreadthIsMinOrMaxContent = m_maxTrackBreadthIsMaxContent || (maxTrackBreadth().isLength() && maxTrackBreadth().length().isMinContent());
    }

    bool hasMinOrMaxContentMinTrackBreadth() const { return m_minTrackBreadthIsMinOrMaxContent; }
    bool hasMaxContentMinTrackBreadth() const { return m_minTrackBreadthIsMaxContent; }
    bool hasMinOrMaxContentMaxTrackBreadth() const { return m_maxTrackBreadthIsMinOrMaxContent; }
    bool hasMaxContentMaxTrackBreadth() const { return m_maxTrackBreadthIsMaxContent; }

private:
    GridTrackSizeType m_type;
    GridLength m_minTrackBreadth;
    GridLength m_maxTrackBreadth;
    bool m_minTrackBreadthIsMinOrMaxContent;
    bool m_minTrackBreadthIsMaxContent;
    bool m_maxTrackBreadthIsMinOrMaxContent;
    bool m_maxTrackBreadthIsMaxContent;
};

} // namespace WebCore

#endif // GridTrackSize_h