1 /*

     2 * Copyright (c) 2004 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:  Active object for subscribing to Publish & Suscribe properties

    15 *

    16 */

    17 

    18 

    19 #ifndef CAPPCONTROLLERPROPERTYHANDLER_H

    20 #define CAPPCONTROLLERPROPERTYHANDLER_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <e32property.h>

    25 

    26 // FORWARDS

    27 class CVCApplicationControllerImpl;

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 * Active object for subscribing to Publish & Suscribe properties

    33 * @since 2.8

    34 */

    35 class CAppControllerPropertyHandler : public CActive

    36     {

    37     public:  // Constructors and destructor

    38         /**

    39         * Symbian two-phased constructor.

    40         * @since 2.8

    41         * @param aCategory Category of the property to watch

    42         * @param aKey      Key UID of the property to watch

    43         * @param aCallback Callback to get notifications about changes

    44         */

    45         static CAppControllerPropertyHandler* NewL(

    46             TUid aCategory,

    47             TUint aKey,

    48             CVCApplicationControllerImpl* aController );

    49 

    50         // Destructor

    51         virtual ~CAppControllerPropertyHandler();

    52 

    53     public:  // New functions

    54         

    55 		/**

    56         * Get current property value.

    57         * @since 2.8

    58         * @return current (integer) value of this property

    59         */

    60         TInt Value();

    61 

    62 

    63     private: // Functions from base classes

    64 

    65         /**

    66         * From CActive.

    67         * Handle a change event.

    68         */

    69         void RunL();

    70 

    71         /**

    72         * From CActive.

    73         * Cancel the request to receive events.

    74         */

    75         void DoCancel();

    76 

    77     private: // New functions

    78 

    79         /**

    80         * Symbian OS 2nd phase constructor.

    81         */

    82         void ConstructL(TUid aCategory,

    83 						TUint aKey );

    84 

    85         /**

    86         * C++ constructor.

    87         */

    88         CAppControllerPropertyHandler(CVCApplicationControllerImpl* aController);

    89 

    90     private:	// Data

    91 

    92         RProperty					  iProperty;

    93         TCallBack					  iCallback;

    94         TBool						  iRequestIssued;

    95 		CVCApplicationControllerImpl* iController;

    96     };

    97 

    98 #endif

    99 

   100 // End of File