1 /*

     2 * Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   This class implements volume control of AVRCP Controller.	

    15 *

    16 *

    17 */

    18 

    19 

    20 #ifndef BTRCCABSOLUTEVOLUMELEVELCONTROLLER_H

    21 #define BTRCCABSOLUTEVOLUMELEVELCONTROLLER_H

    22 

    23 //  INCLUDES

    24 #include <e32base.h>

    25 #include <bttypes.h> // BT protocol wide types

    26 #include "btrccVolumeLevelControllerBase.h"

    27 #include "absolutevolumeapicontrollerobserver.h"  

    28 #include "absolutevolumeapicontroller.h"

    29 #include "absolutevolumeapitargetobserver.h"

    30 //#include <remconinterfaceselector.h> 

    31 

    32 // FORWARD DECLARATIONS

    33 class CRemConInterfaceSelector; 

    34 class CRemConCoreApiController; 

    35 class CBTRCCActive; 

    36 

    37 // CLASS DECLARATION

    38 

    39 /**

    40 *  A listener for incoming handsfree attachments/detachments.

    41 */

    42 NONSHARABLE_CLASS(CBTRCCAbsoluteVolumeLevelController) : 

    43     public CBTRCCVolumeLevelControllerBase, 

    44     public MRemConAbsoluteVolumeControllerObserver 

    45 	{

    46 	public:  // Constructors and destructor

    47 

    48 		/**

    49 		* Two-phased constructor.

    50 		*      

    51 		*/

    52 		static CBTRCCAbsoluteVolumeLevelController* NewL(CRemConInterfaceSelector& aInterfaceSelector, MBTRCCVolumeControllerObserver& aObserver); 

    53 

    54 		/**

    55 		* Destructor.

    56 		*/

    57 		virtual ~CBTRCCAbsoluteVolumeLevelController();

    58 

    59 

    60 	private:

    61 

    62     		/**

    63     		* C++ default constructor.

    64     		*/

    65             CBTRCCAbsoluteVolumeLevelController(MBTRCCVolumeControllerObserver& aObserver);

    66 

    67     		/**

    68     		* Symbian 2nd phase constructor.

    69     		*/

    70     		void ConstructL(CRemConInterfaceSelector& aInterfaceSelector);

    71 

    72     public: // From MBTRCCActiveObserver

    73 

    74         void RequestCompletedL(CBTRCCActive& aActive, TInt aErr);

    75 

    76         void CancelRequest(TInt aServiceId);

    77 

    78     public: // From CBTRCCVolumeLevelControllerBase

    79 

    80         void DoStart(TInt aInitialVolume); // Set the initial volume. 

    81 

    82         void DoStop(); // Stop monitoring for volume level changes. 

    83 

    84         void DoReset(); // Reset the volume level.          

    85 

    86     private: // From CBTRCCVolumeLevelControllerBase

    87 

    88         void AdjustRemoteVolume(TInt aVolume); 

    89         

    90         TInt GetPhoneVolume(TInt &aVol);

    91 

    92 	public: // New methods

    93 

    94 

    95     private:  // From MRemConAbsoluteVolumeControllerObserver

    96 

    97         void MrcavcoCurrentVolume(TUint32 aVolume, TUint32 aMaxVolume, TInt aError); 

    98 

    99         void MrcavcoSetAbsoluteVolumeResponse(TUint32 aVolume, TUint32 aMaxVolume, TInt aError); 

   100 

   101         void MrcavcoAbsoluteVolumeNotificationError(); 

   102     

   103     private:

   104         void AccessoryChangedVolume(TUint32 aVolume, TUint32 aMaxVolume, TInt aError);

   105         TBool ValidVolumeParams(TUint32 aVolume, TUint32 aMaxVolume);

   106         

   107         void RegisterVolumeChangeNotification();

   108     

   109 	private:    // Data

   110 

   111 	    CRemConAbsoluteVolumeController* iRemConAbsoluteVolumeController; // changes the accessory's volume level. 

   112 

   113         // This active object listens to the absolute volume API. 

   114         CBTRCCActive *iBtrccAbsoluteVolumeActive; 

   115         

   116         // Not owned

   117         CRemConInterfaceSelector *iInterfaceSelector;

   118 

   119 		TInt iLocalMaxVolume; // maximum volume level of phone

   120 

   121 		TUint iNumRemotes; // not used, but needed for the remote controlling API.

   122 		

   123 		TInt iRetryCounter;

   124     };

   125 

   126 #endif      // BTRCCABSOLUTEVOLUMELEVELCONTROLLER_H

   127             

   128 // End of File