#pragma once
#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
#include "FloatingState.h"
#include "FormattingContext.h"
#include "LayoutContainerBox.h"
#include <wtf/IsoMalloc.h>
namespace WebCore {
namespace Layout {
class FloatAvoider;
class Box;
class LayoutState;
class FloatingContext {
WTF_MAKE_ISO_ALLOCATED(FloatingContext);
public:
FloatingContext(const FormattingContext&, const FloatingState&);
const FloatingState& floatingState() const { return m_floatingState; }
LayoutPoint positionForFloat(const Box&, const HorizontalConstraints&) const;
LayoutPoint positionForNonFloatingFloatAvoider(const Box&, const HorizontalConstraints&) const;
struct PositionWithClearance {
LayoutUnit position;
Optional<LayoutUnit> clearance;
};
Optional<PositionWithClearance> verticalPositionWithClearance(const Box&) const;
Optional<LayoutUnit> top() const;
Optional<LayoutUnit> leftBottom() const { return bottom(Clear::Left); }
Optional<LayoutUnit> rightBottom() const { return bottom(Clear::Right); }
Optional<LayoutUnit> bottom() const { return bottom(Clear::Both); }
bool isEmpty() const { return m_floatingState.floats().isEmpty(); }
struct Constraints {
Optional<PointInContextRoot> left;
Optional<PointInContextRoot> right;
};
Constraints constraints(LayoutUnit candidateTop, LayoutUnit candidateHeight) const;
FloatingState::FloatItem toFloatItem(const Box& floatBox) const;
private:
Optional<LayoutUnit> bottom(Clear) const;
const LayoutState& layoutState() const { return m_floatingState.layoutState(); }
const FormattingContext& formattingContext() const { return m_formattingContext; }
const ContainerBox& root() const { return m_formattingContext.root(); }
void findPositionForFormattingContextRoot(FloatAvoider&) const;
struct AbsoluteCoordinateValuesForFloatAvoider;
AbsoluteCoordinateValuesForFloatAvoider absoluteCoordinates(const Box&) const;
LayoutPoint mapTopLeftToFloatingStateRoot(const Box&) const;
Point mapPointFromFormattingContextRootToFloatingStateRoot(Point) const;
const FormattingContext& m_formattingContext;
const FloatingState& m_floatingState;
};
}
}
#endif