/*

 * Copyright (c) 2010 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 : Content Arsenal client session

 *

 */

#ifndef CAOBSERVER_H_

#define CAOBSERVER_H_

#include <QObject>

#include "cadef.h"

#include "cadefs.h"

class CCaInnerEntry;

class CaEntry;

/**

 *  IDataObserver

 *

 */

class IDataObserver

{

public:

    /**

     * Method invoked when entry is changed.

     * @param entryId entry id.

     * @param changeType change type.

     */

    virtual void entryChanged(TInt entryId,

                              TChangeType changeType) const = 0;

    /**

     * Method invoked when entry is changed.

     * @param entry entry.

     * @param changeType change type.

     */

    virtual void entryChanged(const CCaInnerEntry &entry,

                              TChangeType changeType) const = 0;

    /**

     * Method invoked when entry was changed.

     * @param entryId entry id.

     */

    virtual void entryTouched(TInt id) const = 0;

    /**

     * Method invoked when entry was changed.

     * @param groupId group id.

     */

    virtual void groupContentChanged(TInt groupId) const = 0;

};

class CaObserver: public QObject, public IDataObserver

{

    Q_OBJECT

public:

    /**

     * Constructor.

     * @param parent pointer to parent. Defaults to NULL.

     */

    CaObserver(QObject *parent = 0);

    /**

     * Destructor.

     */

    ~CaObserver();

    /**

     * Method invoked when entry is changed.

     * @param entryId entry id.

     * @param changeType change type.

     */

    void entryChanged(TInt entryId,

                              TChangeType changeType) const;

    /**

     * Method invoked when entry is changed.

     * @param entry entry.

     * @param changeType change type.

     */

    void entryChanged(const CCaInnerEntry &entry,

                              TChangeType changeType) const;

    /**

     * Method invoked when entry was changed.

     * @param entryId entry id.

     */

    void entryTouched(TInt id) const ;

    /**

     * Method invoked when entry was changed.

     * @param groupId group id.

     */

    void groupContentChanged(TInt groupId) const;

signals:

    void signalEntryChanged(int entryId, ChangeType changeType) const;

    void signalEntryChanged(const CaEntry &entry,

                            ChangeType changeType) const;

    void signalEntryTouched(int id) const;

    void signalGroupContentChanged(int groupId) const;

};

#endif /* CAOBSERVER_H_ */