1 /*

     2 * Copyright (c) 2003 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:  Contains implementation of the CDosServerObserver class. which is the 

    15 *                       notification interface to the DOS Server.

    16 *

    17 */

    18 

    19 #ifndef __DOSSERVEROBSERVER_H

    20 #define __DOSSERVEROBSERVER_H

    21 

    22 //  INCLUDES

    23 #include <DosSvrServices.h>

    24 

    25 #include "fmradioengineradiosettings.h"

    26 

    27 class CRadioEngine;

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 * This class implements theis the notification interface to the DOS Server.

    33 */

    34 class CDosServerObserver : public CDosEventListenerBase

    35     {

    36 	public:

    37 		virtual ~CDosServerObserver();

    38 		/**

    39 		* Two-phased class constructor.

    40 		* @param aEngine - pointer to the CRadioEngine instance (used for callbacks)

    41 		* @param aRadioSettings - pointer to the CRadioSettings class

    42 		* @return pointer to CDosServerObserver class instance

    43 		*/

    44 		static CDosServerObserver* NewL(CRadioEngine* aEngine, TRadioSettings* aRadioSettings);

    45 

    46         /**

    47         * Sets the current audio routing.

    48 		* @param aAudioOutput Audio output to be used

    49 		* @return Symbian error code

    50         */

    51  

    52         TInt SetAudioRouting(CRadioEngine::TFMRadioAudioOutput aAudioOutput);

    53 	

    54 		/**

    55 		* From CDosEventListenerBase 

    56 		* It notifies about a headset button state change

    57 		* @param aState State of button

    58 		*/

    59 		void HeadsetButtonChangedL(EPSButtonState aState);

    60 

    61 	private:

    62 		/**

    63 		* Default class constructor.

    64 		* @param aEngine - pointer to the CRadioEngine instance (used for callbacks)

    65 		* @param aRadioSettings - pointer to the CRadioSettings class

    66 		*/

    67 		CDosServerObserver(CRadioEngine* aEngine, TRadioSettings* aRadioSettings);

    68 		/**

    69 		* Second phase class constructor.

    70 		*/

    71 		void ConstructL();

    72 

    73 	private:

    74 		CRadioEngine *iEngine;

    75 		TRadioSettings *iRadioSettings;

    76         RDosAudio iDosAudio;

    77     };

    78 

    79 #endif  // __DOSSERVEROBSERVER_H

    80 

    81 // End of file