1 /*

     2 * Copyright (c) 2005-2007 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:  CSysApAccessoryObserver class definition. This class listens to

    15 *                changes in Accessory Mode and updates accessory specific Status

    16 *                Pane indicators and profiles.

    17 *

    18 */

    19 

    20 

    21 #ifndef SYSAPACCESSORYOBSERVER_H

    22 #define SYSAPACCESSORYOBSERVER_H

    23 

    24 // INCLUDES

    25 #include <e32base.h>

    26 #include <AccessoryMode.h>

    27 #include <AccessoryServer.h>

    28 

    29 // FORWARD DECLARATIONS

    30 class CSysApAppUi;

    31 

    32 // CLASS DECLARATION

    33 /**

    34 *  CSysApAccessoryObserver class. This class observer changes in Accessory Server.

    35 *

    36 *  @lib   sysap

    37 *  @since 3.1 

    38 */

    39 

    40 class CSysApAccessoryObserver : public CActive 

    41     {

    42     public: // Constructors and destructor

    43         /**

    44         * EPOC default constructor.

    45         */

    46         static CSysApAccessoryObserver* NewL( CSysApAppUi& aSysApAppUi );

    47         

    48         /**

    49         * Destructor.

    50         */

    51         virtual ~CSysApAccessoryObserver();

    52       

    53         /**

    54         * Returns current accessory mode

    55         * 

    56         * @return Current accessory mode

    57         */

    58         TAccMode GetAccessoryMode() const;

    59 

    60     private:

    61         /**

    62         * Symbian OS default constructor.

    63         * @param None

    64         * @return void

    65         */

    66         void ConstructL( );

    67         

    68         /**

    69         * C++ default constructor.

    70         * @param None

    71         * @return void

    72         */

    73         CSysApAccessoryObserver();

    74 

    75         /**

    76         * Constructor

    77         * @param CSysApAppUi& aSysApAppUi

    78         * @return void

    79         */         

    80         CSysApAccessoryObserver( CSysApAppUi& aSysApAppUi );

    81     

    82         // By default, prohibit copy constructor

    83         CSysApAccessoryObserver( const CSysApAccessoryObserver& );

    84     

    85         // Prohibit assigment operator

    86         CSysApAccessoryObserver& operator= ( const CSysApAccessoryObserver& );

    87        

    88     private:

    89         /**

    90         * From CActive. Cancels the active object from observing Accessory Mode events.

    91         * @param None

    92         * @return void

    93         */

    94         void DoCancel();

    95         

    96         /**

    97         * From CActive. Gets called by active object when an alarm event occurs.

    98         * @param None

    99         * @return void

   100         */

   101         void RunL();

   102 

   103         /**

   104         * From CActive. Gets called by active object when leave happens inside RunL

   105         * @param TInt aError

   106         * @return void

   107         */

   108         TInt RunError( TInt aError );

   109 

   110     private:

   111         CSysApAppUi&         iSysApAppUi;

   112         RAccessoryServer     iAccessoryServer;

   113         RAccessoryMode       iAccessoryMode;

   114         TAccPolAccessoryMode iAccMode;

   115         

   116         /**

   117         * Previous accessory mode is stored for filtering out

   118         * notifications due change in audio output status.

   119         */

   120         TAccMode iPreviousMode;

   121         

   122     };

   123 

   124 #endif      // SYSAPACCESSORYOBSERVER_H

   125             

   126 // End of File