The Tor Browser: layout/svg/nsSVGForeignObjectFrame.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 #ifndef NSSVGFOREIGNOBJECTFRAME_H__

     7 #define NSSVGFOREIGNOBJECTFRAME_H__

     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"

    16 class nsRenderingContext;

    17 class nsSVGOuterSVGFrame;

    19 typedef nsContainerFrame nsSVGForeignObjectFrameBase;

    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);

    29 public:

    30   NS_DECL_QUERYFRAME

    31   NS_DECL_FRAMEARENA_HELPERS

    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   virtual nsresult  AttributeChanged(int32_t         aNameSpaceID,

    39                                      nsIAtom*        aAttribute,

    40                                      int32_t         aModType) MOZ_OVERRIDE;

    42   virtual nsIFrame* GetContentInsertionFrame() MOZ_OVERRIDE {

    43     return GetFirstPrincipalChild()->GetContentInsertionFrame();

    44   }

    46   virtual nsresult Reflow(nsPresContext*           aPresContext,

    47                           nsHTMLReflowMetrics&     aDesiredSize,

    48                           const nsHTMLReflowState& aReflowState,

    49                           nsReflowStatus&          aStatus) MOZ_OVERRIDE;

    51   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,

    52                                 const nsRect&           aDirtyRect,

    53                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;

    55   /**

    56    * Get the "type" of the frame

    57    *

    58    * @see nsGkAtoms::svgForeignObjectFrame

    59    */

    60   virtual nsIAtom* GetType() const MOZ_OVERRIDE;

    62   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE

    63   {

    64     return nsSVGForeignObjectFrameBase::IsFrameOfType(aFlags &

    65       ~(nsIFrame::eSVG | nsIFrame::eSVGForeignObject));

    66   }

    68   virtual bool IsSVGTransformed(Matrix *aOwnTransform,

    69                                 Matrix *aFromParentTransform) const MOZ_OVERRIDE;

    71 #ifdef DEBUG_FRAME_DUMP

    72   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE

    73   {

    74     return MakeFrameName(NS_LITERAL_STRING("SVGForeignObject"), aResult);

    75   }

    76 #endif

    78   // nsISVGChildFrame interface:

    79   virtual nsresult PaintSVG(nsRenderingContext *aContext,

    80                             const nsIntRect *aDirtyRect,

    81                             nsIFrame* aTransformRoot = nullptr) MOZ_OVERRIDE;

    82   virtual nsIFrame* GetFrameForPoint(const nsPoint &aPoint) MOZ_OVERRIDE;

    83   virtual nsRect GetCoveredRegion() MOZ_OVERRIDE;

    84   virtual void ReflowSVG() MOZ_OVERRIDE;

    85   virtual void NotifySVGChanged(uint32_t aFlags) MOZ_OVERRIDE;

    86   virtual SVGBBox GetBBoxContribution(const Matrix &aToBBoxUserspace,

    87                                       uint32_t aFlags) MOZ_OVERRIDE;

    88   virtual bool IsDisplayContainer() MOZ_OVERRIDE { return true; }

    90   gfxMatrix GetCanvasTM(uint32_t aFor, nsIFrame* aTransformRoot = nullptr);

    92   nsRect GetInvalidRegion();

    94 protected:

    95   // implementation helpers:

    96   void DoReflow();

    97   void RequestReflow(nsIPresShell::IntrinsicDirty aType);

    99   // If width or height is less than or equal to zero we must disable rendering

   100   bool IsDisabled() const { return mRect.width <= 0 || mRect.height <= 0; }

   102   nsAutoPtr<gfxMatrix> mCanvasTM;

   104   bool mInReflow;

   105 };

   107 #endif

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