LCOV - code coverage report
Current view: directory - layout/generic - nsVideoFrame.h (source / functions) Found Hit Coverage
Test: app.info Lines: 3 0 0.0 %
Date: 2012-06-02 Functions: 2 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is Mozilla code.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is the Mozilla Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2007
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *  Chris Double <chris.double@double.co.nz>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : /* rendering object for the HTML <video> element */
      40                 : 
      41                 : #ifndef nsVideoFrame_h___
      42                 : #define nsVideoFrame_h___
      43                 : 
      44                 : #include "nsContainerFrame.h"
      45                 : #include "nsString.h"
      46                 : #include "nsAString.h"
      47                 : #include "nsIIOService.h"
      48                 : #include "nsITimer.h"
      49                 : #include "nsTArray.h"
      50                 : #include "nsIAnonymousContentCreator.h"
      51                 : #include "Layers.h"
      52                 : #include "ImageLayers.h"
      53                 : 
      54                 : class nsPresContext;
      55                 : class nsDisplayItem;
      56                 : 
      57                 : nsIFrame* NS_NewVideoFrame (nsIPresShell* aPresShell, nsStyleContext* aContext);
      58                 : 
      59                 : class nsVideoFrame : public nsContainerFrame, public nsIAnonymousContentCreator
      60                 : {
      61                 : public:
      62                 :   typedef mozilla::layers::Layer Layer;
      63                 :   typedef mozilla::layers::LayerManager LayerManager;
      64                 : 
      65                 :   nsVideoFrame(nsStyleContext* aContext);
      66                 : 
      67                 :   NS_DECL_QUERYFRAME
      68                 :   NS_DECL_FRAMEARENA_HELPERS
      69                 : 
      70                 :   NS_IMETHOD BuildDisplayList(nsDisplayListBuilder*   aBuilder,
      71                 :                               const nsRect&           aDirtyRect,
      72                 :                               const nsDisplayListSet& aLists);
      73                 : 
      74                 :   NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
      75                 :                               nsIAtom* aAttribute,
      76                 :                               PRInt32 aModType);
      77                 : 
      78                 :   /* get the size of the video's display */
      79                 :   nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext);
      80                 :   virtual nsSize GetIntrinsicRatio();
      81                 :   virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
      82                 :                              nsSize aCBSize, nscoord aAvailableWidth,
      83                 :                              nsSize aMargin, nsSize aBorder, nsSize aPadding,
      84                 :                              bool aShrinkWrap);
      85                 :   virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext);
      86                 :   virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext);
      87                 :   virtual void DestroyFrom(nsIFrame* aDestructRoot);
      88                 :   virtual bool IsLeaf() const;
      89                 : 
      90                 :   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
      91                 :                     nsHTMLReflowMetrics&     aDesiredSize,
      92                 :                     const nsHTMLReflowState& aReflowState,
      93                 :                     nsReflowStatus&          aStatus);
      94                 : 
      95                 : #ifdef ACCESSIBILITY
      96                 :   virtual already_AddRefed<nsAccessible> CreateAccessible();
      97                 : #endif
      98                 : 
      99                 :   virtual nsIAtom* GetType() const;
     100                 : 
     101               0 :   virtual bool IsFrameOfType(PRUint32 aFlags) const
     102                 :   {
     103               0 :     return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
     104                 :   }
     105                 :   
     106                 :   virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements);
     107                 :   virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
     108                 :                                         PRUint32 aFilters);
     109                 : 
     110               0 :   nsIContent* GetPosterImage() { return mPosterImage; }
     111                 : 
     112                 :   // Returns true if we should display the poster. Note that once we show
     113                 :   // a video frame, the poster will never be displayed again.
     114                 :   bool ShouldDisplayPoster();
     115                 : 
     116                 : #ifdef DEBUG
     117                 :   NS_IMETHOD GetFrameName(nsAString& aResult) const;
     118                 : #endif
     119                 : 
     120                 :   already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
     121                 :                                      LayerManager* aManager,
     122                 :                                      nsDisplayItem* aItem);
     123                 : 
     124                 : protected:
     125                 : 
     126                 :   // Returns true if we're rendering for a video element. We still create
     127                 :   // nsVideoFrame to render controls for an audio element.
     128                 :   bool HasVideoElement();
     129                 : 
     130                 :   // Returns true if there is video data to render. Can return false
     131                 :   // when we're the frame for an audio element, or we've created a video
     132                 :   // element for a media which is audio-only.
     133                 :   bool HasVideoData();
     134                 : 
     135                 :   // Sets the mPosterImage's src attribute to be the video's poster attribute,
     136                 :   // if we're the frame for a video element. Only call on frames for video
     137                 :   // elements, not for frames for audio elements.
     138                 :   nsresult UpdatePosterSource(bool aNotify);
     139                 : 
     140                 :   virtual ~nsVideoFrame();
     141                 : 
     142                 :   nsMargin mBorderPadding;
     143                 :   
     144                 :   // Anonymous child which is bound via XBL to the video controls.
     145                 :   nsCOMPtr<nsIContent> mVideoControls;
     146                 :   
     147                 :   // Anonymous child which is the image element of the poster frame.
     148                 :   nsCOMPtr<nsIContent> mPosterImage;
     149                 : };
     150                 : 
     151                 : #endif /* nsVideoFrame_h___ */

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