gecko-dev/layout/svg/nsSVGInnerSVGFrame.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef __NS_SVGINNERSVGFRAME_H__
#define __NS_SVGINNERSVGFRAME_H__

#include "mozilla/Attributes.h"
#include "nsSVGContainerFrame.h"
#include "nsISVGSVGFrame.h"

class nsRenderingContext;

typedef nsSVGDisplayContainerFrame nsSVGInnerSVGFrameBase;

class nsSVGInnerSVGFrame : public nsSVGInnerSVGFrameBase,
                           public nsISVGSVGFrame
{
  friend nsIFrame*
  NS_NewSVGInnerSVGFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
protected:
  nsSVGInnerSVGFrame(nsStyleContext* aContext) :
    nsSVGInnerSVGFrameBase(aContext) {}
  
public:
  NS_DECL_QUERYFRAME_TARGET(nsSVGInnerSVGFrame)
  NS_DECL_QUERYFRAME
  NS_DECL_FRAMEARENA_HELPERS

#ifdef DEBUG
  virtual void Init(nsIContent*      aContent,
                    nsIFrame*        aParent,
                    nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;
#endif

  /**
   * Get the "type" of the frame
   *
   * @see nsGkAtoms::svgInnerSVGFrame
   */
  virtual nsIAtom* GetType() const MOZ_OVERRIDE;

#ifdef DEBUG
  NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE
  {
    return MakeFrameName(NS_LITERAL_STRING("SVGInnerSVG"), aResult);
  }
#endif

  NS_IMETHOD  AttributeChanged(int32_t         aNameSpaceID,
                               nsIAtom*        aAttribute,
                               int32_t         aModType) MOZ_OVERRIDE;

  // nsISVGChildFrame interface:
  NS_IMETHOD PaintSVG(nsRenderingContext *aContext,
                      const nsIntRect *aDirtyRect,
                      nsIFrame* aTransformRoot = nullptr) MOZ_OVERRIDE;
  virtual void ReflowSVG() MOZ_OVERRIDE;
  virtual void NotifySVGChanged(uint32_t aFlags) MOZ_OVERRIDE;
  NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint &aPoint) MOZ_OVERRIDE;

  // nsSVGContainerFrame methods:
  virtual gfxMatrix GetCanvasTM(uint32_t aFor,
                                nsIFrame* aTransformRoot = nullptr) MOZ_OVERRIDE;

  virtual bool HasChildrenOnlyTransform(Matrix *aTransform) const MOZ_OVERRIDE;

  // nsISVGSVGFrame interface:
  virtual void NotifyViewportOrTransformChanged(uint32_t aFlags) MOZ_OVERRIDE;

protected:

  nsAutoPtr<gfxMatrix> mCanvasTM;
};

#endif