/*

* Copyright (c) 2007 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:  CS Server Delete Handler

*

*/

#ifndef __C_CS_CONVERSATION_DELETE_HANDLER_H__

#define __C_CS_CONVERSATION_DELETE_HANDLER_H__

// SYSTEM INCLUDE FILES

#include <msvapi.h>

// FORWARD DECLARATIONS

class CMsvSession;

class MMsvSessionObserver;

class CConversationCache;

class CCsConversationEntry;

/**

 * Delete handler states

 */

enum TDeleteHandlerState

    {

    EIdle = 0,

    EDeleteStart,

    EDeleteNext,

    EDeleteComplete

    };

/**

 * This class handles deletion of messages from messaging store.

 */

class CCsConversationDeleteHandler : public CActive, 

public MMsvSessionObserver 

    {

public:

    /**

     * Two phase construction

     */

    static CCsConversationDeleteHandler* NewL(CCsConversationCache* aCache);

    /**

     * Destructor

     */

    virtual ~CCsConversationDeleteHandler();

    /**

     * From MMsvSessionObserver, HandleSessionEventL.

     */

    virtual void HandleSessionEventL(TMsvSessionEvent /*aEvent*/, 

            TAny* /*aArg1*/, TAny* /*aArg2*/, TAny* /*aArg3*/) {};

    /**

     * Delete a set of messages

     * @param aConversationId. The conversation id.

     */

    void DeleteL(TInt aConversationId);

public: // From CActive

    void RunL();

    void DoCancel();

private:    

    CCsConversationDeleteHandler();

    void ConstructL(CCsConversationCache* aCache);

    void IssueRequest();

    void DeleteOneMessage();

private:

    /**

     * Own. Msv Session.

     */

    CMsvSession* iSession;

    /**

     * State

     */

    TDeleteHandlerState iState;

    /**

     * Not own. Cache.

     */

    CCsConversationCache* iCache;

    /**

     * Own. List of message entries to be deleted.

     */

    RPointerArray<CCsConversationEntry>*  iConversationEntryList;

    /**

     * Deleted message count

     */

    TInt iDeletedCount;

    /**

     * Conversation Id currently being deleted.

     */

    TInt iConversationId;

    /**

     *  Number of Messages in Sending state that are not deleted

     */

    TInt iSendStateMsgs;

    };

#endif // __C_CS_CONVERSATION_DELETE_HANDLER_H__