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:  Header file for MTelDMCallStateObserver class.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CTELDMCALLSTATELISTENER_H

    21 #define CTELDMCALLSTATELISTENER_H

    22 

    23 //  INCLUDES

    24 #include    <e32property.h>

    25 #include    <e32base.h>

    26 

    27 

    28 // FORWARD DECLARATIONS

    29 

    30 // CLASS DECLARATION

    31 class MTelDMCallStateObserver;

    32 

    33 /**

    34 *  Call state listener. Listening TelephonyCallState PS key. 

    35 *

    36 *  @since 3.1

    37 */

    38  

    39 NONSHARABLE_CLASS( CTelDMCallStateListener ) : public CActive

    40     {

    41     public: // Constructors and destructors.

    42 

    43         /**

    44         * Two-phased constructor.

    45         */ 

    46         static CTelDMCallStateListener* NewL();

    47         

    48         /**

    49         * Destructor.

    50         */

    51         virtual ~CTelDMCallStateListener();

    52 

    53    

    54     public:

    55    

    56         void AddObserverL( MTelDMCallStateObserver& aCallStateObserver );

    57         

    58     private: // from CActive

    59    

    60         /**

    61         * @see CActive::RunL.

    62         */

    63         void RunL();

    64 

    65         /**

    66         * @see CActive::DoCancel.

    67         */

    68         void DoCancel();

    69      

    70     private:

    71         

    72         /**

    73         * Handle notification request

    74         */      

    75         void HandleChange();

    76         

    77         /**

    78         * Start notification.

    79         */

    80         void IssueRequest();

    81         

    82         /**

    83         * Constructor.

    84         */

    85         CTelDMCallStateListener();

    86 

    87         /**

    88         * Symbian OS constructor.

    89         */

    90         void ConstructL();

    91    

    92     private:

    93         // Owned Publish & Subscribe instance.

    94         RProperty iProperty;

    95         

    96         // Call state

    97         TInt iCallState;

    98         

    99         // Call State Change Observer array.

   100         RPointerArray< MTelDMCallStateObserver > iObserverArray;

   101     };

   102  

   103 #endif      // CTELDMCALLSTATELISTENER_H  

   104 

   105 // End of File