1 /*

     2 * Copyright (c) 2006 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:  Publish and Subscribe key watcher

    15 *

    16 */

    17 

    18 

    19 #ifndef CMMACALLSTATEMONITOR_H

    20 #define CMMACALLSTATEMONITOR_H

    21 

    22 #include <e32property.h>

    23 

    24 class MMMACallStateObserver;

    25 

    26 /**

    27  *  Publish and subscribe key watcher.

    28  *

    29  *  @lib 

    30  */

    31 class CMMACallStateMonitor : public CActive

    32     {

    33 public:

    34 

    35     /*

    36     * Two Phased Constructor.

    37     *

    38     * @since 

    39     * @param aUid PubSub UID to watch

    40     * @param aKey specific key to watch

    41     * @return Construced object

    42     */

    43     static CMMACallStateMonitor* NewL( TUid aUid, TInt aKey,

    44                                             MMMACallStateObserver* aObserver );

    45 

    46     /*

    47     * virtual destructor.

    48     *

    49     * @since 

    50     */

    51     virtual ~CMMACallStateMonitor();

    52 

    53 public:     // New Functions

    54 

    55     /*

    56     * Return the value of the key.

    57     *

    58     * @since 

    59     * @param aValue

    60     * @return KErrNone, if successful otherwise system error

    61     */

    62     TInt GetValue( TInt& aValue );

    63     

    64 protected:  // From Base class

    65 

    66     /*

    67     * From CActive.

    68     *

    69     * @since 

    70     */

    71     void RunL();

    72     

    73     /*

    74     * From CActive.

    75     *

    76     * @since 

    77     */

    78     void DoCancel();

    79     

    80 private:

    81 

    82     /*

    83     * Default Constructor.

    84     *

    85     * @since 

    86     * @param aUid PubSub key to watch

    87     * @param aKey specific key to watch

    88     */

    89     CMMACallStateMonitor( TUid aUid,

    90                       TInt aKey,

    91                       MMMACallStateObserver* aObserver );

    92 

    93     /*

    94     * Second phased constructor.

    95     *

    96     * @since 

    97     */

    98     void ConstructL();

    99 

   100 private: // data

   101     

   102     RProperty             iProperty;

   103     MMMACallStateObserver*    iObserver;  // not owned

   104     TUid                  iUid;       // Uid that we are watching

   105     TInt                  iKey;       // Key that we are watching

   106     };

   107 

   108 #endif // C_MMAPSKEYWATCHER_H