/*

* 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:  MPresentityGroupContentEvent API object implementation.

 *

*/

#ifndef CPRESENTITYGROUPCONTENTEVENTIMP_H

#define CPRESENTITYGROUPCONTENTEVENTIMP_H

#include "ximpapieventbase.h"

#include "presencetypehelpers.h"

#include "ximpdatasubscriptionstateimp.h"

#include <presentitygroupcontentevent.h>

class RReadStream;

class CXIMPIdentityImp;

class CPresentityGroupInfoImp;

class CXIMPDataSubscriptionStateImp;

/**

 * MOwnPresenceEvent API object implementation.

 *

 * @lib ximpdatamodel.dll

 * @since S60 v3.2

 */

NONSHARABLE_CLASS( CPresentityGroupContentEventImp ): public CXIMPApiEventBase,

                                                       public MPresentityGroupContentEvent

    {

public:

    /** The class ID. */

    enum { KClassId = PRIMP_CLSID_CPRESENTITYGROUPCONTENTEVENTIMP };

public:

    /**

     * Exported instantiation method for initializing

     * new event object.

     */

    IMPORT_C static CPresentityGroupContentEventImp* NewLC(

            CXIMPIdentityImp& aGroupId,

            RPrGrpMemInfoImpArray* aAdded,

            RPrGrpMemInfoImpArray* aUpdated,

            RPrGrpMemInfoImpArray* aRemoved,

            CXIMPDataSubscriptionStateImp* aState

            );

    IMPORT_C static CPresentityGroupContentEventImp* NewLC(

            CXIMPIdentityImp& aGroupId,

            RPrGrpMemInfoImpArray* aAdded,

            RPrGrpMemInfoImpArray* aUpdated,

            RPrGrpMemInfoImpArray* aRemoved,

            RPrGrpMemInfoImpArray* aCurrent,

            CXIMPDataSubscriptionStateImp* aState

            );

    IMPORT_C static CPresentityGroupContentEventImp* NewL(

            CXIMPIdentityImp& aGroupId,

            RPrGrpMemInfoImpArray* aAdded,

            RPrGrpMemInfoImpArray* aUpdated,

            RPrGrpMemInfoImpArray* aRemoved,

            RPrGrpMemInfoImpArray* aCurrent,

            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 ~CPresentityGroupContentEventImp();

private:

    CPresentityGroupContentEventImp();

    void ConstructL( CXIMPIdentityImp& aGroupId,

            RPrGrpMemInfoImpArray* aAdded,

            RPrGrpMemInfoImpArray* aUpdated,

            RPrGrpMemInfoImpArray* aRemoved,

            CXIMPDataSubscriptionStateImp* aState

            );

    void ConstructL( CXIMPIdentityImp& aGroupId,

            RPrGrpMemInfoImpArray* aAdded,

            RPrGrpMemInfoImpArray* aUpdated,

            RPrGrpMemInfoImpArray* aRemoved,

            RPrGrpMemInfoImpArray* aCurrent,

            CXIMPDataSubscriptionStateImp* aState );

    void ConstructL( RReadStream& aStream );

    /**

     * Helper for externalize.

     */

    void WriteArrayToStreamL( RPrGrpMemInfoImpArray& aArray,

            RWriteStream& aStream ) const;

    /**

     * Helper for internalize

     */

    void FillArrayFromStreamL( RPrGrpMemInfoImpArray& 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 MPresentityGroupContentEvent

    const MXIMPIdentity& GroupId() const;

    TInt NewMembersCount() const;

    const MPresentityGroupMemberInfo& NewMember( TInt aIndex ) const;

    TInt UpdatedMembersCount() const;

    const MPresentityGroupMemberInfo& UpdatedMember( TInt aIndex ) const;

    TInt DisappearedMembersCount() const;

    const MPresentityGroupMemberInfo& DisappearedMember( TInt aIndex ) const;

    TInt CurrentMembersCount() const;

    const MPresentityGroupMemberInfo& CurrentMember( TInt aIndex ) const;

    const MXIMPDataSubscriptionState& DataSubscriptionState() const;

private:

    /**

     * Compare the given arrays for equality.

     * Arrays must be sorted. This is a method specific

     * to the group info imp array.

     * @return ETrue if the arrays match, EFalse otherwise.

     */

    static TBool CompareArrays( RPrGrpMemInfoImpArray* aA, RPrGrpMemInfoImpArray* aB );

private: // data

    /**

     * ETrue if constructed from stream.

     */

    TBool iConstructedFromStream;

    /**

     * Kludge to fix current members ownership issues.

     */

    TBool iOwnsCurrentMembersArray;

    /**

     * Group id

     *

     */

    CXIMPIdentityImp* iGroupId;

    /**

     * Group member informations.

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

     * Might own current members in some cases, in which

     * iOwnsCurrentMembersArray

     * will be set.

     */

    RPrGrpMemInfoImpArray* iAddedMembers;

    RPrGrpMemInfoImpArray* iUpdatedMembers;

    RPrGrpMemInfoImpArray* iRemovedMembers;

    RPrGrpMemInfoImpArray* iCurrentMembers;

    /**

     *

     */

    CXIMPDataSubscriptionStateImp* iSubscriptionState;

    };

#endif // CPRESENTITYGROUPCONTENTEVENTIMP_H