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:   Defines class CNcnPublishAndSubscribeObserver.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef NCNPUBLISHANDSUBSCRIBEOBSERVER_H

    21 #define NCNPUBLISHANDSUBSCRIBEOBSERVER_H

    22 

    23 //  INCLUDES

    24 #include <e32base.h>

    25 #include <e32property.h>

    26 #include "NcnSubscribeHandler.h"

    27 

    28 // CLASS DECLARATION

    29 class CNcnModelBase;

    30 class CNcnSubscriber;

    31 

    32 /**

    33 * Listens to the Phone idle status and other Properties

    34 * through the Publish and Subscribe session.

    35 */

    36 class CNcnPublishAndSubscribeObserver : public CBase, public MNcnSubscribeHandler

    37     {

    38     public:  // Constructors and destructor

    39 

    40         /**

    41         * C++ default constructor.

    42         */

    43         CNcnPublishAndSubscribeObserver( CNcnModelBase* aModel );

    44 

    45         /**

    46         * Two-phased constructor.

    47         */

    48         static CNcnPublishAndSubscribeObserver* NewL( CNcnModelBase* aModel );

    49 

    50         /**

    51         * Destructor.

    52         */

    53         virtual ~CNcnPublishAndSubscribeObserver();

    54 

    55     public:

    56         

    57         /*

    58         * Through this Publish and Subscribe is notified about state changes.

    59         * @param aCategory Property category.

    60         * @param aVariable The Property to be set

    61 		* @param aState The value to be set for the aVariable Property

    62         */

    63         void NotifyPublishAndSubscribe( const TUid& aCategory, TUint aVariable, const TInt aState );

    64 

    65 	public: //from base classes

    66 

    67 		 /**

    68         * Through this method the Property subscribers notify of Property changes

    69         * @param aCategory The category of the property to be observed

    70 		* @param aKey The subkey of the property to be observed

    71 		*/

    72         void HandlePropertyChangedL( const TUid& aCategory, TInt aKey );

    73 

    74     private:

    75 

    76         /**

    77         * By default Symbian OS constructor is private.

    78         */

    79         void ConstructL();

    80 

    81         // By default, prohibit copy constructor

    82         CNcnPublishAndSubscribeObserver( const CNcnPublishAndSubscribeObserver& );

    83         // Prohibit assigment operator

    84         CNcnPublishAndSubscribeObserver& operator= ( const CNcnPublishAndSubscribeObserver& );

    85 

    86 		 /**

    87         *  Determine idle state.

    88         * Reads iAutolockStatus, iCurrentCallStatus and iPhoneIdleState and informs 

    89         * model about the idle status

    90 		*/

    91         void DetermineIdleState();

    92         

    93     private:    // Data

    94 

    95         // Property subscribers

    96 		CNcnSubscriber* iSimChangedSubscriber;

    97 		CNcnSubscriber* iPhoneIdleSubscriber;

    98 		CNcnSubscriber* iAutolockSubscriber;

    99 		CNcnSubscriber* iCurrentCallSubscriber;

   100 		CNcnSubscriber* iSimUsableSubscriber;

   101 		

   102          // A pointer to the event monitor.

   103         CNcnModelBase* iModel;

   104 

   105         // Stores the phone idle state status

   106         TInt iPhoneIdleState;

   107 

   108         // Stores the autolock status

   109         TInt iAutolockStatus;

   110 

   111         // Stores the current call status

   112         TInt iCurrentCallStatus;

   113     };

   114 

   115 #endif      // NCNPUBLISHANDSUBSCRIBEOBSERVER_H

   116 

   117 // End of File