1 /*

     2 * Copyright (c) 2005 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: 

    15 *     CHeadsetStatusContainer functionality.

    16 *

    17 */

    18 

    19 

    20 #ifndef __HEADSETCONTAINER_H__

    21 #define __HEADSETCONTAINER_H__

    22 

    23 // INCLUDES

    24 #include <e32base.h>

    25 #ifdef __ACCESSORY_FW

    26 #include <AccessoryServer.h>

    27 #include <AccessoryMode.h>

    28 #endif

    29 

    30 // FORWARD DECLARATIONS

    31 class MHeadsetStatusObserver;

    32 class CHeadsetStatusObserver;

    33 

    34 // CLASS DECLARATION

    35 

    36 /** 

    37 *  This implementation is a wrapper that encapsulates internal interfaces 

    38 *  from extended SDK.

    39 *  Construction will leave with KErrNotSupported unless __ACCESSORY_FW flag

    40 *  is not defined.

    41 */ 

    42 NONSHARABLE_CLASS( CHeadsetStatusContainer ): public CBase 

    43     {

    44     public:     // Constructors & destructors

    45        

    46         /**

    47         * Destructor 

    48         */

    49         ~CHeadsetStatusContainer();

    50 

    51         /**

    52         * Symbian two phased constructor.

    53         */

    54         static CHeadsetStatusContainer* NewL();

    55 

    56     public:     // New methods

    57     

    58         /**

    59         * Used to query the headset connectivity status. 

    60         * @param    aState: Boolean value of headset status

    61         * @return   KErrNone if query succeeded, otherwise one of the

    62         *           system wide error codes.

    63         */

    64         TInt QueryHeadsetStatus( TBool& aState );

    65          

    66         /**

    67         * Sets observer through headset status notifications are received.

    68         * @param    aObserver: Observer

    69         * @return   None

    70         */

    71         void SetObserver( MHeadsetStatusObserver* aObserver );

    72         

    73         /**

    74         * Starts observing headset status changes.

    75         * @param    None

    76         * @return   None

    77         */

    78         void StartObserving();

    79         

    80         /**

    81         * Stops observing.

    82         * @param    None

    83         * @return   None

    84         */

    85         void StopObserving();

    86         

    87         /**

    88         * Checks whether already observing.

    89         * @param    None

    90         * @return   ETrue if observing

    91         */

    92         TBool IsObserving() const;

    93         

    94     private: 

    95         

    96         /**

    97         * Default Constructor 

    98         */

    99         CHeadsetStatusContainer( );

   100         

   101         /**

   102         * Symbian OS 2nd phase constructor 

   103         */

   104         void ConstructL();  

   105                

   106     private:

   107     

   108         #ifdef __ACCESSORY_FW

   109         RAccessoryServer    iAccSrv;

   110         RAccessoryMode      iAccMode;

   111         // headset status observer, owned

   112         CHeadsetStatusObserver* iObserver;

   113         #endif

   114     };

   115 

   116 #endif //__HEADSETCONTAINER_H__

   117 

   118 // End of File