/*

 * 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:  Object for message history implementation.

 *

 */

#ifndef __MSG_HISTORY_IMPL_H__

#define __MSG_HISTORY_IMPL_H__

#include <QObject>

//FORWARD DECLARATIONS

class MsgItem;

class MsgHistoryPrivate;

class MsgHistory;

class MsgHistoryImpl : public QObject

    {

    Q_OBJECT

public:    

    /*

     * constructor

     */

    explicit MsgHistoryImpl(QObject* parent = 0);

    /*

     * destructor

     */

    virtual ~MsgHistoryImpl();

public:    

    /*

     * get all messages

     * @param contactId, contact id

     */

    bool getMessages(int contactId);

    /*

     * clear all messages

     * @param contactId, contact id

     */        

    bool clearMessages(int contactId);

    /*

     * mark message as read

     * @param contactId, contact id

     */

    bool markRead(int contactId);

    /*

     * subscribe for messages

     * @param contactId, contact id

     */

    bool subscribe(int contactId);

    /*

     * unsubscribe for messages

     * @param contactId, contact id

     */

    bool unSubscribe(int contactId);

signals:    

   /*

    * messagesReady

    * @param msgs, list of messages

    */

   void messagesReady(QList<MsgItem>& msgs);

   /*

    * message Added

    * @param msg, MsgItem

    */

   void messageAdded(MsgItem& msg);

   /*

    * message Changed

    * @param msg, MsgItem

    */

   void messageChanged(MsgItem& msg);

   /*

    * message Deleted

    * @param msg, MsgItem

    */

   void messageDeleted(MsgItem& msg);

public: 

   /*

    * messagesReadyEvent

    * emits messagesReady signal

    * @param msgs, list of messages

    */     

    void messagesReadyEvent(QList<MsgItem>& msgs);

    /*

     * messageAddedEvent

     * emits messageAdded signal

     * @param msg, MsgItem

     */

    void messageAddedEvent(MsgItem& msg);

    /*

     * messageChangedEvent

     * emits messageChanged signal

     * @param msg, MsgItem

     */

    void messageChangedEvent(MsgItem& msg);

    /*

     * messageDeletedEvent

     * emits messageDeleted signal

     * @param msg, MsgItem

     */

    void messageDeletedEvent(MsgItem& msg);

private:

    /*

     * Private implementation

     * Own

     */

    MsgHistoryPrivate* d_ptr;

    };

#endif // __MSG_HISTORY_IMPL_H__