layout/svg/nsSVGForeignObjectFrame.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef NSSVGFOREIGNOBJECTFRAME_H__
   7 #define NSSVGFOREIGNOBJECTFRAME_H__
   8
   9 #include "mozilla/Attributes.h"
  10 #include "nsContainerFrame.h"
  11 #include "nsIPresShell.h"
  12 #include "nsISVGChildFrame.h"
  13 #include "nsRegion.h"
  14 #include "nsSVGUtils.h"
  15
  16 class nsRenderingContext;
  17 class nsSVGOuterSVGFrame;
  18
  19 typedef nsContainerFrame nsSVGForeignObjectFrameBase;
  20
  21 class nsSVGForeignObjectFrame : public nsSVGForeignObjectFrameBase,
  22                                 public nsISVGChildFrame
  23 {
  24   friend nsIFrame*
  25   NS_NewSVGForeignObjectFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
  26 protected:
  27   nsSVGForeignObjectFrame(nsStyleContext* aContext);
  28
  29 public:
  30   NS_DECL_QUERYFRAME
  31   NS_DECL_FRAMEARENA_HELPERS
  32
  33   // nsIFrame:
  34   virtual void Init(nsIContent* aContent,
  35                     nsIFrame*   aParent,
  36                     nsIFrame*   aPrevInFlow) MOZ_OVERRIDE;
  37   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
  38   NS_IMETHOD  AttributeChanged(int32_t         aNameSpaceID,
  39                                nsIAtom*        aAttribute,
  40                                int32_t         aModType) MOZ_OVERRIDE;
  41
  42   virtual nsIFrame* GetContentInsertionFrame() MOZ_OVERRIDE {
  43     return GetFirstPrincipalChild()->GetContentInsertionFrame();
  44   }
  45
  46   NS_IMETHOD Reflow(nsPresContext*           aPresContext,
  47                     nsHTMLReflowMetrics&     aDesiredSize,
  48                     const nsHTMLReflowState& aReflowState,
  49                     nsReflowStatus&          aStatus) MOZ_OVERRIDE;
  50
  51   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
  52                                 const nsRect&           aDirtyRect,
  53                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
  54
  55   /**
  56    * Get the "type" of the frame
  57    *
  58    * @see nsGkAtoms::svgForeignObjectFrame
  59    */
  60   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
  61
  62   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
  63   {
  64     return nsSVGForeignObjectFrameBase::IsFrameOfType(aFlags &
  65       ~(nsIFrame::eSVG | nsIFrame::eSVGForeignObject));
  66   }
  67
  68   virtual bool IsSVGTransformed(gfxMatrix *aOwnTransform,
  69                                 gfxMatrix *aFromParentTransform) const MOZ_OVERRIDE;
  70
  71 #ifdef DEBUG
  72   NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE
  73   {
  74     return MakeFrameName(NS_LITERAL_STRING("SVGForeignObject"), aResult);
  75   }
  76 #endif
  77
  78   // nsISVGChildFrame interface:
  79   NS_IMETHOD PaintSVG(nsRenderingContext *aContext,
  80                       const nsIntRect *aDirtyRect) MOZ_OVERRIDE;
  81   NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint &aPoint) MOZ_OVERRIDE;
  82   NS_IMETHOD_(nsRect) GetCoveredRegion() MOZ_OVERRIDE;
  83   virtual void ReflowSVG() MOZ_OVERRIDE;
  84   virtual void NotifySVGChanged(uint32_t aFlags) MOZ_OVERRIDE;
  85   virtual SVGBBox GetBBoxContribution(const gfxMatrix &aToBBoxUserspace,
  86                                       uint32_t aFlags) MOZ_OVERRIDE;
  87   NS_IMETHOD_(bool) IsDisplayContainer() MOZ_OVERRIDE { return true; }
  88
  89   gfxMatrix GetCanvasTM(uint32_t aFor);
  90
  91   nsRect GetInvalidRegion();
  92
  93 protected:
  94   // implementation helpers:
  95   void DoReflow();
  96   void RequestReflow(nsIPresShell::IntrinsicDirty aType);
  97
  98   // If width or height is less than or equal to zero we must disable rendering
  99   bool IsDisabled() const { return mRect.width <= 0 || mRect.height <= 0; }
 100
 101   nsAutoPtr<gfxMatrix> mCanvasTM;
 102
 103   bool mInReflow;
 104 };
 105
 106 #endif