The Tor Browser: layout/mathml/nsMathMLmoFrame.h@ac0c01689b40

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     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 nsMathMLmoFrame_h___

     7 #define nsMathMLmoFrame_h___

     9 #include "mozilla/Attributes.h"

    10 #include "nsMathMLTokenFrame.h"

    11 #include "nsMathMLChar.h"

    13 //

    14 // <mo> -- operator, fence, or separator

    15 //

    17 class nsMathMLmoFrame : public nsMathMLTokenFrame {

    18 public:

    19   NS_DECL_FRAMEARENA_HELPERS

    21   friend nsIFrame* NS_NewMathMLmoFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);

    23   virtual eMathMLFrameType GetMathMLFrameType() MOZ_OVERRIDE;

    25   virtual void

    26   SetAdditionalStyleContext(int32_t          aIndex,

    27                             nsStyleContext*  aStyleContext) MOZ_OVERRIDE;

    28   virtual nsStyleContext*

    29   GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE;

    31   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,

    32                                 const nsRect&           aDirtyRect,

    33                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;

    35   NS_IMETHOD

    36   InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;

    38   NS_IMETHOD

    39   TransmitAutomaticData() MOZ_OVERRIDE;

    41   virtual nsresult

    42   SetInitialChildList(ChildListID     aListID,

    43                       nsFrameList&    aChildList) MOZ_OVERRIDE;

    45   virtual nsresult

    46   Reflow(nsPresContext*          aPresContext,

    47          nsHTMLReflowMetrics&     aDesiredSize,

    48          const nsHTMLReflowState& aReflowState,

    49          nsReflowStatus&          aStatus) MOZ_OVERRIDE;

    51   virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;

    53   virtual void

    54   GetIntrinsicWidthMetrics(nsRenderingContext* aRenderingContext,

    55                            nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;

    57   virtual nsresult

    58   AttributeChanged(int32_t         aNameSpaceID,

    59                    nsIAtom*        aAttribute,

    60                    int32_t         aModType) MOZ_OVERRIDE;

    62   // This method is called by the parent frame to ask <mo>

    63   // to stretch itself.

    64   NS_IMETHOD

    65   Stretch(nsRenderingContext& aRenderingContext,

    66           nsStretchDirection   aStretchDirection,

    67           nsBoundingMetrics&   aContainerSize,

    68           nsHTMLReflowMetrics& aDesiredStretchSize) MOZ_OVERRIDE;

    70   virtual nsresult

    71   ChildListChanged(int32_t aModType) MOZ_OVERRIDE

    72   {

    73     ProcessTextData();

    74     return nsMathMLContainerFrame::ChildListChanged(aModType);

    75   }

    77 protected:

    78   nsMathMLmoFrame(nsStyleContext* aContext) : nsMathMLTokenFrame(aContext) {}

    79   virtual ~nsMathMLmoFrame();

    81   nsMathMLChar     mMathMLChar; // Here is the MathMLChar that will deal with the operator.

    82   nsOperatorFlags  mFlags;

    83   float            mMinSize;

    84   float            mMaxSize;

    86   bool UseMathMLChar();

    88   // overload the base method so that we can setup our nsMathMLChar

    89   void ProcessTextData();

    91   // helper to get our 'form' and lookup in the Operator Dictionary to fetch

    92   // our default data that may come from there, and to complete the setup

    93   // using attributes that we may have

    94   void

    95   ProcessOperatorData();

    97   // helper to double check thar our char should be rendered as a selected char

    98   bool

    99   IsFrameInSelection(nsIFrame* aFrame);

   100 };

   102 #endif /* nsMathMLmoFrame_h___ */

The Tor Browser / file revision

layout/mathml/nsMathMLmoFrame.h@ac0c01689b40

layout/mathml/nsMathMLmoFrame.h