1 /*

     2 * Copyright (c) 2009 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:  General active object offering asynchronous service 

    15 *

    16 */

    17 

    18 

    19 #ifndef BTRCCACTIVE_H

    20 #define BTRCCACTIVE_H

    21 

    22 //  INCLUDES

    23 #include <e32base.h>

    24 

    25 class CBTRCCActive;

    26 

    27 class MBTRCCActiveObserver

    28     {

    29     public:

    30         virtual void RequestCompletedL(CBTRCCActive& aActive, TInt aErr) = 0;

    31         

    32         virtual void CancelRequest(TInt aServiceId) = 0;

    33     };

    34 

    35 /**

    36 *  CBTRCCActive listens to the Volume PS Key changes.

    37 */

    38 NONSHARABLE_CLASS(CBTRCCActive) : public CActive

    39     {

    40     public:

    41     

    42         /**

    43         * Two-phased constructor.

    44         */

    45         static CBTRCCActive* NewL(MBTRCCActiveObserver& aObserver, TInt aServiceId = 0, 

    46             CActive::TPriority aPriority = EPriorityStandard /*TPriority::EPriorityStandard*/);

    47 

    48         static CBTRCCActive* NewLC(MBTRCCActiveObserver& aObserver, TInt aServiceId = 0, 

    49                 CActive::TPriority aPriority = EPriorityStandard /*TPriority::EPriorityStandard*/);

    50 

    51         /**

    52         * Destructor.

    53         */

    54         ~CBTRCCActive();

    55 

    56     public:

    57     

    58         virtual void GoActive();

    59 

    60         TInt ServiceId() const;

    61         

    62         void SetServiceId(TInt aServiceId);

    63 

    64     protected:

    65     

    66         /**

    67         * From CActive. Called when asynchronous request completes.

    68         * @since 3.0

    69         * @param None

    70         * @return None

    71         */

    72         virtual void RunL();

    73         

    74         virtual void DoCancel();

    75 

    76     protected:

    77     

    78         /**

    79         * C++ default constructor.

    80         */

    81         CBTRCCActive(MBTRCCActiveObserver& aObserver, 

    82                 TInt aServiceId, CActive::TPriority aPriority);

    83 

    84         MBTRCCActiveObserver& Observer();

    85 

    86     private:

    87         MBTRCCActiveObserver& iObserver;

    88         TInt iServiceId;

    89     };

    90 

    91 #endif  // BTRCCACTIVE_H

    92 

    93 // End of File