/*

* 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:  Presence in pbonebook

*

*/

#ifndef PRESENCEICONINFOLISTENER_H

#define PRESENCEICONINFOLISTENER_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <badesca.h>

class MContactPresenceObs;

class MPresenceTrafficLights;

class CContactStoreAccessor;

class CPresenceIconInfo;

class CVPbkContactManager;

class MVPbkContactLink;

// CLASS DECLARATION

/**

*  CPresenceIconInfoListener

*

*/

NONSHARABLE_CLASS( CPresenceIconInfoListener ) : public CActive

{

public: // Constructors and destructor

    /**

     * Destructor.

     */

    ~CPresenceIconInfoListener();

    /**

     * Two-phased constructor.

     */

    static CPresenceIconInfoListener* NewL( CVPbkContactManager* aManager, MContactPresenceObs& aObs );

public: // New methods

    /**

     * Start info subscriotion

     * @param aLinkArray packed contact links

     */

    void SubscribePresenceInfoL( const MDesC8Array& aLinkArray  );

    /*

     * Resubscribe

     * @param aLink contact link 

     */

    void ResubscribePresenceInfoL( MVPbkContactLink* aLink );

    /**

     * Get presence for all services at once

     * @param aPackedLink packed contact link

     * @param aOpId operation id used in response callback

     */

    void GetPresenceInfoL( const TDesC8& aPackedLink, TInt aOpId  );      

    /**

     * Contact store accessor

     * @return contact store

     */

    CContactStoreAccessor*  ContactStoreAccessor();

    /**

     * Cancel info subscriptions

     * @param aLinkArray packed contact links

     */

    void CancelSubscribePresenceInfo( const MDesC8Array& aLinkArray );

    /**

     * Cancel info subscriptions

     * @param aLink contact link 

     */

    void CancelSubscribePresenceInfo( MVPbkContactLink* aLink );    

    /**

     * Delete all subscription requests

     */

    void DeleteAllRequests();

    void CancelGet( TInt aOpId );    

private:

    /**

    * Constructor for performing 1st stage construction

    */

    CPresenceIconInfoListener( MContactPresenceObs& aObs );

    /**

     * EPOC default constructor for performing 2nd stage construction

     */

    void ConstructL( CVPbkContactManager* aContactManager );

    /**

     * Search icon info handler

     * @return handler or NULL

     */

    CPresenceIconInfo* SearchIconInfo( const TDesC8& aContactLink );

    /**

     * Create icon info handler

     * @return handler

     */

    CPresenceIconInfo* CreateIconInfoL(

        const TDesC8& aContactLink, TBool aIsSubscription, TInt aOpId );

    /**

     * Create or access existing CPresenceIconInfo

     */

    CPresenceIconInfo*  GetSinglePresenceIconInfoL(

        const TDesC8& aContactLink, TBool aIsSubscription, TInt aOpId );

    /**

     * Open contact store

     */

    void OpenStoreL();

    /**

     * Open contact store for given link and existing Contact Manager

     * @param aPackedLink packed contact link

     */

    void OpenStoreL( const TDesC8& aPackedLink  );        

    /**

     * Start pending subscriptions

     */

    void StartPendingsL( );

    /**

     * Send callbacks to all requests

     */

    void SendErrorCallbacks( TInt aMyStatus );

    /*

     * Cancel current subscritpion

     * @param aLink contact link 

     * @param aResubscribe if resubscritpion is done 

     */

    void DoResubscribePresenceInfoL( MVPbkContactLink* aLink, TBool aResubscribe );    

private:  // from CActive

    void RunL();

    void DoCancel();

// data

    MContactPresenceObs& iObs;

    /**

     * Queue for info requests

     */

    TDblQue<CPresenceIconInfo> iInfoReqList;

    /**

     * OWN

     */

    MPresenceTrafficLights* iBrandedIcons;

    /**

     * Whether contact store is open

     */

    TBool iStoreOpen;

    /**

     * contact db access

     * OWN

     */

    CContactStoreAccessor* iStoreAccess;

    /**

     * 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;

};

#endif // PRESENCEICONINFOLISTENER_H