LCOV - code coverage report
Current view: directory - layout/generic - nsHTMLCanvasFrame.h (source / functions) Found Hit Coverage
Test: app.info Lines: 5 0 0.0 %
Date: 2012-06-02 Functions: 3 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                 :  *   Vladimir Vukicevic <vladimir@pobox.com>
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2005
      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                 : /* rendering object for the HTML <canvas> element */
      39                 : 
      40                 : #ifndef nsHTMLCanvasFrame_h___
      41                 : #define nsHTMLCanvasFrame_h___
      42                 : 
      43                 : #include "nsContainerFrame.h"
      44                 : #include "nsString.h"
      45                 : #include "nsAString.h"
      46                 : #include "nsIIOService.h"
      47                 : #include "Layers.h"
      48                 : #include "ImageLayers.h"
      49                 : 
      50                 : class nsPresContext;
      51                 : class nsDisplayItem;
      52                 : 
      53                 : nsIFrame* NS_NewHTMLCanvasFrame (nsIPresShell* aPresShell, nsStyleContext* aContext);
      54                 : 
      55                 : class nsHTMLCanvasFrame : public nsContainerFrame
      56                 : {
      57                 : public:
      58                 :   typedef mozilla::layers::Layer Layer;
      59                 :   typedef mozilla::layers::LayerManager LayerManager;
      60                 : 
      61                 :   NS_DECL_FRAMEARENA_HELPERS
      62                 : 
      63               0 :   nsHTMLCanvasFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
      64                 : 
      65                 :   NS_IMETHOD Init(nsIContent* aContent,
      66                 :                   nsIFrame*   aParent,
      67                 :                   nsIFrame*   aPrevInFlow);
      68                 : 
      69                 :   NS_IMETHOD BuildDisplayList(nsDisplayListBuilder*   aBuilder,
      70                 :                               const nsRect&           aDirtyRect,
      71                 :                               const nsDisplayListSet& aLists);
      72                 : 
      73                 :   already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
      74                 :                                      LayerManager* aManager,
      75                 :                                      nsDisplayItem* aItem);
      76                 : 
      77                 :   /* get the size of the canvas's image */
      78                 :   nsIntSize GetCanvasSize();
      79                 : 
      80                 :   virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext);
      81                 :   virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext);
      82                 :   virtual nsSize GetIntrinsicRatio();
      83                 : 
      84                 :   virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
      85                 :                              nsSize aCBSize, nscoord aAvailableWidth,
      86                 :                              nsSize aMargin, nsSize aBorder, nsSize aPadding,
      87                 :                              bool aShrinkWrap);
      88                 : 
      89                 :   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
      90                 :                     nsHTMLReflowMetrics&     aDesiredSize,
      91                 :                     const nsHTMLReflowState& aReflowState,
      92                 :                     nsReflowStatus&          aStatus);
      93                 :   
      94                 :   nsRect GetInnerArea() const;
      95                 : 
      96                 : #ifdef ACCESSIBILITY
      97                 :   virtual already_AddRefed<nsAccessible> CreateAccessible();
      98                 : #endif
      99                 : 
     100                 :   virtual nsIAtom* GetType() const;
     101                 : 
     102               0 :   virtual bool IsFrameOfType(PRUint32 aFlags) const
     103                 :   {
     104               0 :     return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
     105                 :   }
     106                 : 
     107                 : #ifdef DEBUG
     108                 :   NS_IMETHOD GetFrameName(nsAString& aResult) const;
     109                 : #endif
     110                 : 
     111                 :   // Inserted child content gets its frames parented by our child block
     112               0 :   virtual nsIFrame* GetContentInsertionFrame() {
     113               0 :     return GetFirstPrincipalChild()->GetContentInsertionFrame();
     114                 :   }
     115                 : 
     116                 : protected:
     117                 :   virtual ~nsHTMLCanvasFrame();
     118                 : 
     119                 :   nscoord GetContinuationOffset(nscoord* aWidth = 0) const;
     120                 : 
     121                 :   nsMargin mBorderPadding;
     122                 : };
     123                 : 
     124                 : #endif /* nsHTMLCanvasFrame_h___ */

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