1 /*

     2 * Copyright (c) 2007 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:  Provides a central repository observer for telephone volume

    15 *

    16 */

    17 

    18 

    19 #ifndef CSVPVOLUMEOBSERVER_H

    20 #define CSVPVOLUMEOBSERVER_H

    21 

    22 #include <e32base.h>

    23 #include <cenrepnotifyhandler.h>

    24 #include <MTelephonyAudioRoutingObserver.h>

    25 #include "svputdefs.h"

    26 

    27 // FORWARD DECLARATIONS

    28 class MSVPVolumeUpdateObserver;

    29 class CTelephonyAudioRouting;

    30 

    31  /**

    32   *  Provides a telephone volume for SVP session.

    33   *

    34   *  @lib svp.dll

    35   *  @since S60 3.2

    36   */

    37 class CSVPVolumeObserver : public CBase,

    38                            public MCenRepNotifyHandlerCallback,

    39                            public MTelephonyAudioRoutingObserver 

    40     {

    41     public: // default constructor and destructor

    42            

    43         /**

    44          * Two-phased constructor.

    45          */

    46         static CSVPVolumeObserver* NewL(

    47             MSVPVolumeUpdateObserver& aObserver );

    48         

    49         /**

    50          * Destructor.

    51          */

    52         virtual ~CSVPVolumeObserver();

    53             

    54     private:

    55     

    56         // from MTelephonyAudioRoutingObserver

    57        

    58         void AvailableOutputsChanged(

    59             CTelephonyAudioRouting& aTelephonyAudioRouting );

    60         

    61         void OutputChanged( CTelephonyAudioRouting& aTelephonyAudioRouting );

    62         

    63         void SetOutputComplete(

    64             CTelephonyAudioRouting& aTelephonyAudioRouting, TInt aError );

    65         

    66         // from MCenRepNotifyHandlerCallback

    67         

    68         /**

    69           Notifies when a generic value has been changed

    70           @since S60 3.2

    71           @param aId Id of the key that has changed

    72          */

    73         void HandleNotifyGeneric( TUint32 aId );

    74         

    75     private:

    76 

    77         /**

    78          * C++ default constructor.

    79          */

    80         CSVPVolumeObserver( MSVPVolumeUpdateObserver& aObserver );

    81 

    82         /**

    83          * By default Symbian 2nd phase constructor is private.

    84          */

    85         void ConstructL();

    86          

    87     private:    // Data

    88            

    89         /**

    90          * Current telephone IHF volume setting

    91          */

    92         TInt iCurrentIhfVolume;

    93 

    94         /**

    95          * Current telephone earpiece volume setting

    96          */

    97         TInt iCurrentEarVolume;

    98 

    99         /**

   100          * Current telephone mode (IHF/EARPIECE)

   101          */

   102         TInt iMode;

   103         

   104         /**

   105          * Central repository instance

   106          * Own.

   107          */

   108         CRepository* iRepository;

   109         

   110         /**

   111          * Central repository notifier instance

   112          * Own.

   113          */

   114         CCenRepNotifyHandler* iNotifier;

   115        

   116          /**

   117          * Instance of telephony audio routing

   118          * used to track mode changes between ear and Ihf

   119          * Own.

   120          */

   121         CTelephonyAudioRouting* iTelephonyAudioRouting;

   122            

   123         /**

   124          * Reference to volume upadte observer

   125          * Used to inform session about volume updates

   126          */

   127         MSVPVolumeUpdateObserver& iVolumeUpdate;

   128 

   129         

   130     private: 

   131     

   132     	// For testing

   133       	SVP_UT_DEFS

   134     

   135     };

   136     

   137 

   138                                   

   139 #endif //  C_SVPVOLUMEOBSERVER_H

   140 

   141 

   142 

   143 

   144 

   145