/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*       

*

*/

#ifndef __CMSCONTACTNOTIFIER__

#define __CMSCONTACTNOTIFIER__

// INCLUDES

#include <s32std.h>

#include "cmscontact.h"

#include "cmscontactfielditem.h"

#include "cmsnotificationhandlerapi.h"

class CCmsContactField;

// CLASS DECLARATION

NONSHARABLE_CLASS( CCmsContactNotifier ) : public CActive 

    {

    public:

        /**

	    * Symbian default constructor

        * @param RCmsContact The main contact object

        * @param MCmsNotificationHandlerAPI The observer

        * @param CCmsContactFieldItem::TCmsContactNotification The type of the

                subscribed notification

        * @return CCmsContactNotifier* Self

	    */

        static CCmsContactNotifier* NewL( RCmsContact& aContact, 

                                          MCmsNotificationHandlerAPI& aObserver,

                                          CCmsContactFieldItem::TCmsContactNotification aType );   

        /**

        * Destructor

        */

        ~CCmsContactNotifier();    

        /**

	    * Activate this object

        * @return void

	    */

        void StartOrderL( TBool aAskMore = EFalse );

    private:

        /**

        * C++ constructor is private

        * 

        * @return CCmsContactFieldInfo

        */

        CCmsContactNotifier( RCmsContact& aContact, 

                             MCmsNotificationHandlerAPI& aObserver,

                             CCmsContactFieldItem::TCmsContactNotification aType );

        /**

        * Symbian second-phase constructor

        * 

        * @return void

        */

        void ConstructL();

    public: // new functions

        /**

        * Return the notification type

        * 

        * @return CCmsContactFieldItem::TCmsContactNotification

        */

        CCmsContactFieldItem::TCmsContactNotification Type();

    private:  //From CActive

        /**

        * An asynchrounous request has been completed

        * 

        * * @return void

        */

        void RunL();

        /**

        * An asynchrounous request has been cancelled

        * 

        * @return void

        */

        void DoCancel();

        /**

        * An asynchrounous request has failed

        * 

        * @return TInt Error

        */

        TInt RunError( TInt aError );

    private:

        /**

        * Start phonebook notifications

        * 

        * @return TInt Error

        */

        void StartPhoneboookNotifyL( TBool aAskMore );

        /**

        * Start presence notifications

        * 

        * @return TInt Error

        */

        void StartPresenceNotifyL( TBool aAskMore );

        /**

        * Start presence notifications

        * 

        * @return TInt Error

        */

        void CheckRestartL( TBool aDestroyed, TCmsPhonebookEvent aEvent );

    private : // data

        RCmsContact&                                   iContact;

        TPtr                                           iStreamDesc;

        HBufC*                                         iStreamBuffer;

        MCmsNotificationHandlerAPI&                    iObserver;

        TBool                                          iPresenceStarted;

        TBool                                          iPhonebookStarted;

        /**

        * Pointer to stack variable to detect the deletion of the heap

        * instance. This case takes place if a client

        * calls destructor in callback method.

        * Own.

        */

        TBool*                                         iDestroyedPtr; 

        CCmsContactFieldItem::TCmsContactNotification  iType;

        CCmsContactField *iContactField;

    };

#endif  //__CMSCONTACTBASENOTIFIER__

// End of File