LCOV - app.info - gfx/layers/ipc/ShadowLayersParent.h

LCOV - code coverage report
| Current view: | directory - gfx/layers/ipc - ShadowLayersParent.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 2 | 0 | 0.0 %
| Date: | 2012-04-21 | Functions: | 2 | 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               0 :   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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