/*

* Copyright (c) 2006 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:  MPresentityGroupList API object implementation.

 *

*/

#ifndef CPRESENCEWATCHERLISTEVENTIMP_H

#define CPRESENCEWATCHERLISTEVENTIMP_H

#include <presencewatcherlistevent.h>

#include "ximpapieventbase.h"

#include "presencetypehelpers.h"

class RReadStream;

class CPresenceWatcherInfoImp;

class CXIMPIdentityImp;

class CXIMPDataSubscriptionStateImp;

/**

 * MOwnPresenceEvent API object implementation.

 *

 * @lib ximpdatamodel.dll

 * @since S60 v3.2

 */

NONSHARABLE_CLASS( CPresenceWatcherListEventImp ): public CXIMPApiEventBase,

                                                       public MPresenceWatcherListEvent

    {

public:

    /** The class ID. */

    enum { KClassId = PRIMP_CLSID_CPRESENCEWATCHERLISTEVENTIMP };

public:

    /**

     * Exported instantiation method for initializing

     * new event object.

     */

    IMPORT_C static CPresenceWatcherListEventImp* NewLC(

            RPrWatLstInfoImpArray* aNew,

            RPrWatLstInfoImpArray* aCurrent,

            RPrWatLstInfoImpArray* aDisappeared,

            CXIMPDataSubscriptionStateImp* aState

            );

    /**

     * Instantiation method for event automation.

     * Method signature must be exactly this to work

     * with event delivery automation system.

     *

     * Event implementation must be registered to

     * XIMPEventCodec KXIMPEventConstructorTable.

     */

    static CXIMPApiEventBase* NewFromStreamLC( RReadStream& aStream );

    virtual ~CPresenceWatcherListEventImp();

private:

    CPresenceWatcherListEventImp();

    void ConstructL(

            RPrWatLstInfoImpArray* aNew,

            RPrWatLstInfoImpArray* aCurrent,

            RPrWatLstInfoImpArray* aDisappeared,

            CXIMPDataSubscriptionStateImp* aState

            );

    void ConstructL( RReadStream& aStream );

    /**

     * Helper for externalize.

     */

    void WriteArrayToStreamL( RPrWatLstInfoImpArray& aArray,

            RWriteStream& aStream ) const;

    /**

     * Helper for internalize

     */

    void FillArrayFromStreamL( RPrWatLstInfoImpArray& aArray,

            RReadStream& aStream );

public: // From API base interfaces

    /**

     * Implementation of MXIMPBase interface methods

     * @see MXIMPBase

     */

    XIMPIMP_DECLARE_IF_BASE_METHODS

    /**

     * Implementation of MXIMPEventBase interface and

     * CXIMPApiEventBase methods

     *

     * @see MXIMPEventBase

     * @see CXIMPApiEventBase

     */

    XIMPIMP_DECLARE_EVENT_BASE_METHODS

public: // From MPresenceWatcherListEvent

    TInt NewWatchersCount() const;

    const MPresenceWatcherInfo& NewWatcher( TInt aIndex ) const;

    TInt DisappearedWatchersCount() const;

    const MPresenceWatcherInfo& DisappearedWatcher( TInt aIndex ) const;

    TInt CurrentWatchersCount() const;

    const MPresenceWatcherInfo& CurrentWatcher( TInt aIndex ) const;

    const MXIMPDataSubscriptionState& DataSubscriptionState() const;

private: // data

    /**

     * ETrue if constructed from stream.

     */

    TBool iConstructedFromStream;

    /**

     * Group informations.

     * Owns if constructed from stream. Otherwise does not own.

     */

    RPrWatLstInfoImpArray* iNewWatchers;

    RPrWatLstInfoImpArray* iCurrent;

    RPrWatLstInfoImpArray* iDisappeared;

    /**

     * Current array owning status

     */

    TBool iOwnsCurrent;

    /**    

     * Subscription state

     */

    CXIMPDataSubscriptionStateImp* iSubscriptionState;

    };

#endif // CPRESENCEWATCHERLISTEVENTIMP_H