LCOV - code coverage report
Current view: directory - objdir/dist/include/mozilla/layers - ShadowLayersParent.h (source / functions) Found Hit Coverage
Test: app.info Lines: 1 0 0.0 %
Date: 2012-06-02 Functions: 1 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2                 :  * vim: sw=2 ts=8 et :
       3                 :  */
       4                 : /* ***** BEGIN LICENSE BLOCK *****
       5                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       6                 :  *
       7                 :  * The contents of this file are subject to the Mozilla Public License Version
       8                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       9                 :  * the License. You may obtain a copy of the License at:
      10                 :  * http://www.mozilla.org/MPL/
      11                 :  *
      12                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      13                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      14                 :  * for the specific language governing rights and limitations under the
      15                 :  * License.
      16                 :  *
      17                 :  * The Original Code is Mozilla Code.
      18                 :  *
      19                 :  * The Initial Developer of the Original Code is
      20                 :  *   The Mozilla Foundation
      21                 :  * Portions created by the Initial Developer are Copyright (C) 2010
      22                 :  * the Initial Developer. All Rights Reserved.
      23                 :  *
      24                 :  * Contributor(s):
      25                 :  *   Chris Jones <jones.chris.g@gmail.com>
      26                 :  *
      27                 :  * Alternatively, the contents of this file may be used under the terms of
      28                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      29                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      30                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      31                 :  * of those above. If you wish to allow use of your version of this file only
      32                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      33                 :  * use your version of this file under the terms of the MPL, indicate your
      34                 :  * decision by deleting the provisions above and replace them with the notice
      35                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      36                 :  * the provisions above, a recipient may use your version of this file under
      37                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      38                 :  *
      39                 :  * ***** END LICENSE BLOCK ***** */
      40                 : 
      41                 : #ifndef mozilla_layers_ShadowLayersParent_h
      42                 : #define mozilla_layers_ShadowLayersParent_h
      43                 : 
      44                 : #include "mozilla/layers/PLayersParent.h"
      45                 : #include "ShadowLayers.h"
      46                 : #include "ShadowLayersManager.h"
      47                 : 
      48                 : namespace mozilla {
      49                 : 
      50                 : namespace layout {
      51                 : class RenderFrameParent;
      52                 : }
      53                 : 
      54                 : namespace layers {
      55                 : 
      56                 : class Layer;
      57                 : class ShadowLayerManager;
      58                 : 
      59                 : class ShadowLayersParent : public PLayersParent,
      60                 :                            public ISurfaceDeAllocator
      61                 : {
      62                 :   typedef mozilla::layout::RenderFrameParent RenderFrameParent;
      63                 :   typedef InfallibleTArray<Edit> EditArray;
      64                 :   typedef InfallibleTArray<EditReply> EditReplyArray;
      65                 : 
      66                 : public:
      67                 :   ShadowLayersParent(ShadowLayerManager* aManager, ShadowLayersManager* aLayersManager);
      68                 :   ~ShadowLayersParent();
      69                 : 
      70                 :   void Destroy();
      71                 : 
      72                 :   ShadowLayerManager* layer_manager() const { return mLayerManager; }
      73                 : 
      74               0 :   ContainerLayer* GetRoot() const { return mRoot; }
      75                 : 
      76                 :   virtual void DestroySharedSurface(gfxSharedImageSurface* aSurface);
      77                 :   virtual void DestroySharedSurface(SurfaceDescriptor* aSurface);
      78                 : 
      79                 : protected:
      80                 :   NS_OVERRIDE virtual bool RecvUpdate(const EditArray& cset,
      81                 :                                       EditReplyArray* reply);
      82                 : 
      83                 :   NS_OVERRIDE virtual PLayerParent* AllocPLayer();
      84                 :   NS_OVERRIDE virtual bool DeallocPLayer(PLayerParent* actor);
      85                 : 
      86                 : private:
      87                 :   nsRefPtr<ShadowLayerManager> mLayerManager;
      88                 :   ShadowLayersManager* mShadowLayersManager;
      89                 :   // Hold the root because it might be grafted under various
      90                 :   // containers in the "real" layer tree
      91                 :   nsRefPtr<ContainerLayer> mRoot;
      92                 :   // When the widget/frame/browser stuff in this process begins its
      93                 :   // destruction process, we need to Disconnect() all the currently
      94                 :   // live shadow layers, because some of them might be orphaned from
      95                 :   // the layer tree.  This happens in Destroy() above.  After we
      96                 :   // Destroy() ourself, there's a window in which that information
      97                 :   // hasn't yet propagated back to the child side and it might still
      98                 :   // send us layer transactions.  We want to ignore those transactions
      99                 :   // because they refer to "zombie layers" on this side.  So, we track
     100                 :   // that state with |mDestroyed|.  This is similar to, but separate
     101                 :   // from, |mLayerManager->IsDestroyed()|; we might have had Destroy()
     102                 :   // called on us but the mLayerManager might not be destroyed, or
     103                 :   // vice versa.  In both cases though, we want to ignore shadow-layer
     104                 :   // transactions posted by the child.
     105                 :   bool mDestroyed;
     106                 : };
     107                 : 
     108                 : } // namespace layers
     109                 : } // namespace mozilla
     110                 : 
     111                 : #endif // ifndef mozilla_layers_ShadowLayersParent_h

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