author Karl Tomlinson <>
Tue, 25 Sep 2012 16:19:25 +1200
changeset 108067 2f9d00b31660f9e972abc0018ff6edb2a4aeb110
parent 106706 c4f83d9d8243f3f853a5356188164a5fddee2b5a
permissions -rw-r--r--
b=793079 set leaktest timeout to half buildbot timeout r=ted

/* -*- 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 */


#include "gfxMatrix.h"
#include "gfxRect.h"
#include "nsFrame.h"
#include "nsLiteralString.h"
#include "nsQueryFrame.h"
#include "nsSVGContainerFrame.h"
#include "nsSVGUtils.h"

class nsIAtom;
class nsIContent;
class nsIFrame;
class nsIPresShell;
class nsRenderingContext;
class nsStyleContext;
class nsSVGPathGeometryFrame;
class nsSVGSVGElement;

struct nsSVGMark;

typedef nsSVGContainerFrame nsSVGMarkerFrameBase;

class nsSVGMarkerFrame : public nsSVGMarkerFrameBase
  friend nsIFrame*
  NS_NewSVGMarkerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
  nsSVGMarkerFrame(nsStyleContext* aContext)
    : nsSVGMarkerFrameBase(aContext)
    , mMarkedFrame(nullptr)
    , mInUse(false)
    , mInUse2(false)


  // nsIFrame interface:
#ifdef DEBUG
  NS_IMETHOD Init(nsIContent*      aContent,
                  nsIFrame*        aParent,
                  nsIFrame*        aPrevInFlow);

  NS_IMETHOD BuildDisplayList(nsDisplayListBuilder*   aBuilder,
                              const nsRect&           aDirtyRect,
                              const nsDisplayListSet& aLists) {
    return NS_OK;

  NS_IMETHOD AttributeChanged(int32_t         aNameSpaceID,
                              nsIAtom*        aAttribute,
                              int32_t         aModType);
   * Get the "type" of the frame
   * @see nsGkAtoms::svgMarkerFrame
  virtual nsIAtom* GetType() const;

#ifdef DEBUG
  NS_IMETHOD GetFrameName(nsAString& aResult) const
    return MakeFrameName(NS_LITERAL_STRING("SVGMarker"), aResult);

  // nsSVGMarkerFrame methods:
  nsresult PaintMark(nsRenderingContext *aContext,
                     nsSVGPathGeometryFrame *aMarkedFrame,
                     nsSVGMark *aMark,
                     float aStrokeWidth);

  SVGBBox GetMarkBBoxContribution(const gfxMatrix &aToBBoxUserspace,
                                  uint32_t aFlags,
                                  nsSVGPathGeometryFrame *aMarkedFrame,
                                  const nsSVGMark *aMark,
                                  float aStrokeWidth);

  // stuff needed for callback
  nsSVGPathGeometryFrame *mMarkedFrame;
  float mStrokeWidth, mX, mY, mAutoAngle;

  // nsSVGContainerFrame methods:
  virtual gfxMatrix GetCanvasTM(uint32_t aFor);

  // A helper class to allow us to paint markers safely. The helper
  // automatically sets and clears the mInUse flag on the marker frame (to
  // prevent nasty reference loops) as well as the reference to the marked
  // frame and its coordinate context. It's easy to mess this up
  // and break things, so this helper makes the code far more robust.
  class AutoMarkerReferencer
    AutoMarkerReferencer(nsSVGMarkerFrame *aFrame,
                         nsSVGPathGeometryFrame *aMarkedFrame);
    nsSVGMarkerFrame *mFrame;

  // nsSVGMarkerFrame methods:
  void SetParentCoordCtxProvider(nsSVGSVGElement *aContext);

  // recursion prevention flag
  bool mInUse;

  // second recursion prevention flag, for GetCanvasTM()
  bool mInUse2;