conflicthandler_p.h

/*
    Copyright (c) 2010 KDAB
    Author: Tobias Koenig <tokoe@kde.org>

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published by
    the Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.

    This library is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
    License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to the
    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
*/

#ifndef AKONADI_CONFLICTHANDLER_P_H
#define AKONADI_CONFLICTHANDLER_P_H

#include <QtCore/QObject>

#include <akonadi/item.h>

class KJob;

namespace Akonadi {

class Session;

class ConflictHandler : public QObject
{
  Q_OBJECT

  public:
    enum ConflictType {
      LocalLocalConflict,   
      LocalRemoteConflict,  
      BackendConflict       
    };

    enum ResolveStrategy {
      UseLocalItem, 
      UseOtherItem, 
      UseBothItems  
    };

    explicit ConflictHandler( ConflictType type, QObject *parent = 0 );

    void setConflictingItems( const Akonadi::Item &changedItem, const Akonadi::Item &conflictingItem );

  public Q_SLOTS:
    void start();

  Q_SIGNALS:
    void conflictResolved();

    void error( const QString &message );

  private Q_SLOTS:
    void slotOtherItemFetched( KJob* );
    void slotUseLocalItemFinished( KJob* );
    void slotUseBothItemsFinished( KJob* );
    void resolve();

  private:
    void useLocalItem();
    void useOtherItem();
    void useBothItems();

    ConflictType mConflictType;
    Akonadi::Item mChangedItem;
    Akonadi::Item mConflictingItem;

    Session *mSession;
};

}

#endif