LCOV - code coverage report
Current view: directory - layout/generic - nsViewportFrame.h (source / functions) Found Hit Coverage
Test: app.info Lines: 5 0 0.0 %
Date: 2012-06-02 Functions: 4 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : /*
      39                 :  * rendering object that is the root of the frame tree, which contains
      40                 :  * the document's scrollbars and contains fixed-positioned elements
      41                 :  */
      42                 : 
      43                 : #ifndef nsViewportFrame_h___
      44                 : #define nsViewportFrame_h___
      45                 : 
      46                 : #include "nsContainerFrame.h"
      47                 : #include "nsGkAtoms.h"
      48                 : 
      49                 : class nsPresContext;
      50                 : 
      51                 : /**
      52                 :   * ViewportFrame is the parent of a single child - the doc root frame or a scroll frame 
      53                 :   * containing the doc root frame. ViewportFrame stores this child in its primary child 
      54                 :   * list.
      55                 :   */
      56                 : class ViewportFrame : public nsContainerFrame {
      57                 : public:
      58                 :   NS_DECL_FRAMEARENA_HELPERS
      59                 : 
      60                 :   typedef nsContainerFrame Super;
      61                 : 
      62               0 :   ViewportFrame(nsStyleContext* aContext)
      63               0 :     : nsContainerFrame(aContext)
      64               0 :   {}
      65               0 :   virtual ~ViewportFrame() { } // useful for debugging
      66                 : 
      67                 :   virtual void DestroyFrom(nsIFrame* aDestructRoot);
      68                 : 
      69                 :   NS_IMETHOD Init(nsIContent*      aContent,
      70                 :                   nsIFrame*        aParent,
      71                 :                   nsIFrame*        asPrevInFlow);
      72                 : 
      73                 :   NS_IMETHOD SetInitialChildList(ChildListID     aListID,
      74                 :                                  nsFrameList&    aChildList);
      75                 : 
      76                 :   NS_IMETHOD AppendFrames(ChildListID     aListID,
      77                 :                           nsFrameList&    aFrameList);
      78                 : 
      79                 :   NS_IMETHOD InsertFrames(ChildListID     aListID,
      80                 :                           nsIFrame*       aPrevFrame,
      81                 :                           nsFrameList&    aFrameList);
      82                 : 
      83                 :   NS_IMETHOD RemoveFrame(ChildListID     aListID,
      84                 :                          nsIFrame*       aOldFrame);
      85                 : 
      86                 :   NS_IMETHOD BuildDisplayList(nsDisplayListBuilder*   aBuilder,
      87                 :                               const nsRect&           aDirtyRect,
      88                 :                               const nsDisplayListSet& aLists);
      89                 : 
      90                 :   virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext);
      91                 :   virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext);
      92                 :   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
      93                 :                     nsHTMLReflowMetrics&     aDesiredSize,
      94                 :                     const nsHTMLReflowState& aReflowState,
      95                 :                     nsReflowStatus&          aStatus);
      96                 : 
      97                 :   /**
      98                 :    * Get the "type" of the frame
      99                 :    *
     100                 :    * @see nsGkAtoms::viewportFrame
     101                 :    */
     102                 :   virtual nsIAtom* GetType() const;
     103                 : 
     104                 :   virtual void InvalidateInternal(const nsRect& aDamageRect,
     105                 :                                   nscoord aX, nscoord aY, nsIFrame* aForChild,
     106                 :                                   PRUint32 aFlags);
     107                 : 
     108                 : #ifdef DEBUG
     109                 :   NS_IMETHOD GetFrameName(nsAString& aResult) const;
     110                 : #endif
     111                 : 
     112                 : private:
     113               0 :   virtual mozilla::layout::FrameChildListID GetAbsoluteListID() const { return kFixedList; }
     114                 : 
     115                 : protected:
     116                 :   nsPoint AdjustReflowStateForScrollbars(nsHTMLReflowState* aReflowState) const;
     117                 : };
     118                 : 
     119                 : 
     120                 : #endif // nsViewportFrame_h___

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