/*  -*- c++ -*-
  callback.h

  This file is used by KMail's plugin interface.
  Copyright (c) 2004 Bo Thorsen <bo@sonofthor.dk>

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

  KMail 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
  General Public License for more details.

  You should have received a copy of the GNU General Public License along
  with this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

  In addition, as a special exception, the copyright holders give
  permission to link the code of this program with any edition of
  the Qt library by Trolltech AS, Norway (or with modified versions
  of Qt that use the same license as Qt), and distribute linked
  combinations including the two.  You must obey the GNU General
  Public License in all respects for all of the code used other than
  Qt.  If you modify this file, you may extend this exception to
  your version of the file, but you are not obligated to do so.  If
  you do not wish to do so, delete this exception statement from
  your version.
*/

#ifndef CALLBACK_H
#define CALLBACK_H

#include "kmail_export.h"
#include <QString>

class KMMessage;
class KMReaderWin;


#include <kcal/attendee.h> // only for an enum, we are not linking


namespace KMail {

/** This class is used for callback hooks needed by bodypart
    formatter plugins. It also holds a pointer to the message we are
    working on.
    Feel free to put whatever you want in here. It's not supposed to be
    a nicely formatted class, but simply include everything necessary
    for the plugins. */
class KMAIL_EXPORT Callback {

  public:
    Callback( KMMessage *msg, KMReaderWin *readerWin );

    /**
      Returns the full message.
    */
    KMMessage *getMsg() const { return mMsg; }

    /**
      Mails a message.
      @param status can be accepted/cancel/tentative
    */
    bool mailICal( const QString &to, const QString &iCal,
                   const QString &subject, const QString &status,
                   bool delMessage = true ) const;

    /**
      Returns the receiver of the mail.
    */
    QString receiver() const;

    /** Returns the sender of the mail. */
    QString sender() const;

    bool askForComment( KCal::Attendee::PartStat status ) const;
    bool deleteInvitationAfterReply() const;
    void deleteInvitation() const;
    bool exchangeCompatibleInvitations() const;
    bool outlookCompatibleInvitationReplyComments() const;

    /**
      Closes the main window showing this message, if it's a secondary window.
    */
    void closeIfSecondaryWindow() const;

  private:
    QString askForTransport( bool nullIdentity ) const;

    KMMessage *mMsg;
    KMReaderWin *mReaderWin;
    mutable QString mReceiver;
    mutable bool mReceiverSet;
};

}

#endif /* CALLBACK_H */

