Source/core/rendering/svg/RenderSVGModelObject.h

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#ifndef RenderSVGModelObject_h
#define RenderSVGModelObject_h

#include "core/rendering/RenderObject.h"
#include "core/svg/SVGElement.h"
#include "platform/geometry/FloatRect.h"

namespace blink {

// Most renderers in the SVG rendering tree will inherit from this class
// but not all. (e.g. RenderSVGForeignObject, RenderSVGBlock) thus methods
// required by SVG renders need to be declared on RenderObject, but shared
// logic can go in this class or in SVGRenderSupport.

class SVGElement;

class RenderSVGModelObject : public RenderObject {
public:
    explicit RenderSVGModelObject(SVGElement*);

    virtual bool isChildAllowed(RenderObject*, RenderStyle*) const OVERRIDE;
    virtual bool canHaveWhitespaceChildren() const OVERRIDE { return false; }

    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* = 0) const OVERRIDE;
    virtual void computeFloatRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, FloatRect&, const PaintInvalidationState*) const OVERRIDE FINAL;

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

    virtual void mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0, const PaintInvalidationState* = 0) const OVERRIDE FINAL;
    virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const OVERRIDE FINAL;
    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;

    virtual void computeLayerHitTestRects(LayerHitTestRects&) const OVERRIDE FINAL;

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

    virtual bool isSVG() const OVERRIDE FINAL { return true; }

    virtual void invalidateTreeIfNeeded(const PaintInvalidationState&) OVERRIDE;

protected:
    virtual void addLayerHitTestRects(LayerHitTestRects&, const RenderLayer* currentCompositedLayer, const LayoutPoint& layerOffset, const LayoutRect& containerRect) const OVERRIDE FINAL;
    virtual void willBeDestroyed() OVERRIDE;

private:
    // RenderSVGModelObject subclasses should use element() instead.
    void node() const WTF_DELETED_FUNCTION;

    // This method should never be called, SVG uses a different nodeAtPoint method
    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE FINAL;
    virtual void absoluteFocusRingQuads(Vector<FloatQuad>&) OVERRIDE FINAL;

    void invalidatePaintIfNeeded(const PaintInvalidationState&);
};

}

#endif