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#ifndef LayoutSVGModelObject_h
#define LayoutSVGModelObject_h

#include "core/layout/LayoutObject.h"
#include "core/svg/SVGElement.h"

namespace blink {

// Most layoutObjects in the SVG layout tree will inherit from this class
// but not all. (e.g. LayoutSVGForeignObject, LayoutSVGBlock) thus methods
// required by SVG layoutObjects need to be declared on LayoutObject, but shared
// logic can go in this class or in SVGLayoutSupport.

class LayoutSVGModelObject : public LayoutObject {
public:
    explicit LayoutSVGModelObject(SVGElement*);

    virtual bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override;

    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const LayoutBoxModelObject* paintInvalidationContainer, const PaintInvalidationState* = 0) const override;

    virtual FloatRect paintInvalidationRectInLocalCoordinates() const override final { return m_paintInvalidationBoundingBox; }

    virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const override final;
    virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override;

    virtual void mapLocalToContainer(const LayoutBoxModelObject* paintInvalidationContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0, const PaintInvalidationState* = 0) const override final;
    virtual const LayoutObject* pushMappingToContainer(const LayoutBoxModelObject* ancestorToStopAt, LayoutGeometryMap&) const override final;
    virtual void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;

    virtual void computeLayerHitTestRects(LayerHitTestRects&) const override final;

    SVGElement* element() const { return toSVGElement(LayoutObject::node()); }

    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVG || LayoutObject::isOfType(type); }

protected:
    virtual void addLayerHitTestRects(LayerHitTestRects&, const DeprecatedPaintLayer* currentCompositedLayer, const LayoutPoint& layerOffset, const LayoutRect& containerRect) const override final;
    virtual void willBeDestroyed() override;

private:
    // LayoutSVGModelObject subclasses should use element() instead.
    void node() const = delete;

    // This method should never be called, SVG uses a different nodeAtPoint method
    virtual bool nodeAtPoint(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override final;
    virtual IntRect absoluteFocusRingBoundingBoxRect() const override final;

    virtual void invalidateTreeIfNeeded(PaintInvalidationState&) override final;

protected:
    FloatRect m_paintInvalidationBoundingBox;
};

}

#endif
