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:  PhoneUI Publish and Subscriber (Publish & Subscribe).

    15 *

    16 */

    17 

    18 

    19 #ifndef __CPHONEPUBLISHSUBSCRIBERAO_H

    20 #define __CPHONEPUBLISHSUBSCRIBERAO_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include <e32property.h>

    25 #include "mphonepubsubobserver.h"

    26 

    27 // CLASS DECLARATION

    28 /**

    29 *  This class observes property variable changes.

    30 *

    31 *  @lib   Services.dll

    32 */

    33 

    34 class CPhonePublishSubscriberAO : public CActive

    35     {

    36     public:

    37 

    38         /**

    39         * Two-phased constructor.

    40         */         

    41         static CPhonePublishSubscriberAO* NewL( 

    42             MPhonePubSubObserver* aPubSubObserver, 

    43             const TUid& aCategory, 

    44             const TUint aKey );

    45 

    46         /**

    47         * Destructor.

    48         */

    49         ~CPhonePublishSubscriberAO();

    50 

    51         /**

    52         * Subscribe to an RProperty

    53         * @param none

    54         * @return none

    55         */

    56         void Subscribe();

    57 

    58     public: // from CActive

    59 

    60         /**

    61         * @param none

    62         * @return none

    63         */    

    64         void RunL();

    65     

    66         /**

    67         * @param aError the error returned

    68         * @return error

    69         */

    70         TInt RunError( TInt aError );

    71 

    72         /**

    73         * @param none

    74         * @return none

    75         */    

    76         void DoCancel();

    77 

    78     public: // new methods

    79 

    80         /**

    81         * Return property category that is subscribed to

    82         * @param None

    83         */

    84         const TUid Category() const;

    85 

    86         /**

    87         * Return property key that is subscribed to

    88         * @param None

    89         */

    90         TUint Key() const;

    91     

    92     private:

    93 

    94         /**

    95         * C++ constructor.

    96         */

    97         CPhonePublishSubscriberAO( 

    98             MPhonePubSubObserver* aPubSubObserver, 

    99             const TUid& aCategory, 

   100             const TUint aKey );

   101 

   102     private:

   103 

   104         MPhonePubSubObserver*   iPubSubObserver; // NOT OWN

   105         RProperty               iProperty; 

   106         TUid                    iCategory;

   107         TUint                   iKey;

   108     };

   109 

   110 #endif // __CPHONEPUBLISHSUBSCRIBERAO_H

   111 

   112 // End of File