--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothengine/btsac/btrcc/inc/btrccVolumeLevelControllerBase.h	Mon Jan 18 20:28:57 2010 +0200
@@ -0,0 +1,141 @@
+/*
+* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   The base class for volume control of AVRCP Controller.	
+*
+*
+*/
+
+#ifndef BTRCCVOLUMELEVELCONTROLLERBASE_H
+#define BTRCCVOLUMELEVELCONTROLLERBASE_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <remconcoreapicontrollerobserver.h> 
+#include <bttypes.h> // BT protocol wide types
+#include <e32property.h> 
+#include "btrccActive.h"
+
+// FORWARD DECLARATIONS
+class CRemConInterfaceSelector; 
+class CRemConCoreApiController; 
+
+// CLASS DECLARATION
+
+NONSHARABLE_CLASS(MBTRCCVolumeControllerObserver) 
+    {
+    public: 
+        virtual void VolumeControlError(TInt aError) = 0; 
+    }; 
+
+/*!
+ error code return by controller
+ */
+enum TBTRccControllerError
+    {
+    EVolumeAdjustmentFailed = 0,       /*!< Adjust remote volume failed */
+    ERegisterNotificationsFailed   /*!< Register volume change notifications failed */
+    };
+/**
+*  A listener for incoming handsfree attachments/detachments.
+*/
+NONSHARABLE_CLASS(CBTRCCVolumeLevelControllerBase) : public CBase, public MBTRCCActiveObserver
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Destructor.
+        */
+        virtual ~CBTRCCVolumeLevelControllerBase();
+
+    protected:
+            /**
+            * C++ default constructor.
+            */
+            CBTRCCVolumeLevelControllerBase(MBTRCCVolumeControllerObserver &aObserver);
+
+            /**
+            * Symbian 2nd phase constructor.
+            */
+            void ConstructL();
+
+    public:
+        enum TVolControlState
+            {
+            ESubscribePhoneVolume,
+            ESetPhoneVolume            
+            };
+            
+    public: // From CBTRCCActiveObserver 
+            virtual void RequestCompletedL(CBTRCCActive& aActive, TInt aErr);
+            
+            virtual void CancelRequest(TInt aServiceId);
+
+    public: // New methods
+
+        void Start(); // Starts monitoring for volume level changes. 
+
+        void Stop(); // Stop monitoring for volume level changes. 
+
+        void Reset(); // Reset the volume level.  
+
+        TInt GetLocalMaxVolume();  
+        
+        TInt GetCurrentLocalVolume();
+
+        void AccessoryChangedVolume(TInt aVolumeInPhoneScale);  
+
+        virtual void DoStart(TInt aInitialVolume) = 0; // Starts monitoring for volume level changes. 
+
+        virtual void DoStop() = 0; // Stop monitoring for volume level changes. 
+
+        virtual void DoReset() = 0; // Reset the volume level.          
+
+        virtual void VolumeControlError(TInt aError); 
+        
+        virtual void RegisterVolumeChangeNotification(); 
+        
+    private:
+        void SetPhoneVolume();
+        
+    private: // New methods
+
+        /**
+        * To be implemented by the specialization class. 
+        */
+        virtual void AdjustRemoteVolume(TInt aVolume) = 0; 
+    
+    protected:    
+        virtual TInt GetPhoneVolume(TInt &aVol);
+
+    private:    // Data
+        RProperty iVolLevelProperty; // owned
+        RProperty iVolKeyEventProperty; // owned
+        
+        // This active object listens to the PS key changes.
+        // Specialization classes may add more active objects if they need. 
+        // Hence the ID in the CBTRCCActive. 
+        CBTRCCActive *iBtrccActive;
+
+        MBTRCCVolumeControllerObserver &iObserver; 
+        
+        TInt iLocalMaxVolume;
+        TInt iPhoneVolume;
+        TInt iRemoteVolume;
+        
+        TVolControlState iState;        
+    };
+
+#endif      // BTRCCVOLUMELEVELCONTROLLERBASE_H
+            
+// End of File