The Tor Browser: layout/xul/nsTextBoxFrame.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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 #ifndef nsTextBoxFrame_h___

     6 #define nsTextBoxFrame_h___

     8 #include "mozilla/Attributes.h"

     9 #include "nsLeafBoxFrame.h"

    11 class nsAccessKeyInfo;

    12 class nsAsyncAccesskeyUpdate;

    14 typedef nsLeafBoxFrame nsTextBoxFrameSuper;

    15 class nsTextBoxFrame : public nsTextBoxFrameSuper

    16 {

    17 public:

    18   NS_DECL_QUERYFRAME_TARGET(nsTextBoxFrame)

    19   NS_DECL_QUERYFRAME

    20   NS_DECL_FRAMEARENA_HELPERS

    22   virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;

    23   virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;

    24   virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;

    25   NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;

    26   virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;

    28   enum CroppingStyle { CropNone, CropLeft, CropRight, CropCenter };

    30   friend nsIFrame* NS_NewTextBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);

    32   virtual void Init(nsIContent*      aContent,

    33                     nsIFrame*        aParent,

    34                     nsIFrame*        asPrevInFlow) MOZ_OVERRIDE;

    36   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;

    38   virtual nsresult AttributeChanged(int32_t         aNameSpaceID,

    39                                     nsIAtom*        aAttribute,

    40                                     int32_t         aModType) MOZ_OVERRIDE;

    42 #ifdef DEBUG_FRAME_DUMP

    43   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;

    44 #endif

    46   void UpdateAttributes(nsIAtom*         aAttribute,

    47                         bool&          aResize,

    48                         bool&          aRedraw);

    50   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,

    51                                 const nsRect&           aDirtyRect,

    52                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;

    54   virtual ~nsTextBoxFrame();

    56   void PaintTitle(nsRenderingContext& aRenderingContext,

    57                   const nsRect&        aDirtyRect,

    58                   nsPoint              aPt,

    59                   const nscolor*       aOverrideColor);

    61   nsRect GetComponentAlphaBounds();

    63   virtual bool ComputesOwnOverflowArea() MOZ_OVERRIDE;

    65   void GetCroppedTitle(nsString& aTitle) const { aTitle = mCroppedTitle; }

    67 protected:

    68   friend class nsAsyncAccesskeyUpdate;

    69   friend class nsDisplayXULTextBox;

    70   // Should be called only by nsAsyncAccesskeyUpdate.

    71   // Returns true if accesskey was updated.

    72   bool UpdateAccesskey(nsWeakFrame& aWeakThis);

    73   void UpdateAccessTitle();

    74   void UpdateAccessIndex();

    76   // REVIEW: SORRY! Couldn't resist devirtualizing these

    77   void LayoutTitle(nsPresContext*      aPresContext,

    78                    nsRenderingContext& aRenderingContext,

    79                    const nsRect&        aRect);

    81   void CalculateUnderline(nsRenderingContext& aRenderingContext);

    83   void CalcTextSize(nsBoxLayoutState& aBoxLayoutState);

    85   void CalcDrawRect(nsRenderingContext &aRenderingContext);

    87   nsTextBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext);

    89   nscoord CalculateTitleForWidth(nsPresContext*      aPresContext,

    90                                  nsRenderingContext& aRenderingContext,

    91                                  nscoord              aWidth);

    93   void GetTextSize(nsPresContext*      aPresContext,

    94                    nsRenderingContext& aRenderingContext,

    95                    const nsString&      aString,

    96                    nsSize&              aSize,

    97                    nscoord&             aAscent);

    99   nsresult RegUnregAccessKey(bool aDoReg);

   101 private:

   103   bool AlwaysAppendAccessKey();

   104   bool InsertSeparatorBeforeAccessKey();

   106   void DrawText(nsRenderingContext& aRenderingContext,

   107                 const nsRect&       aDirtyRect,

   108                 const nsRect&       aTextRect,

   109                 const nscolor*      aOverrideColor);

   111   nsString mTitle;

   112   nsString mCroppedTitle;

   113   nsString mAccessKey;

   114   nsSize mTextSize;

   115   nsRect mTextDrawRect;

   116   nsAccessKeyInfo* mAccessKeyInfo;

   118   CroppingStyle mCropType;

   119   nscoord mAscent;

   120   bool mNeedsRecalc;

   121   bool mNeedsReflowCallback;

   123   static bool gAlwaysAppendAccessKey;

   124   static bool gAccessKeyPrefInitialized;

   125   static bool gInsertSeparatorBeforeAccessKey;

   126   static bool gInsertSeparatorPrefInitialized;

   128 }; // class nsTextBoxFrame

   130 #endif /* nsTextBoxFrame_h___ */

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