/*

    exportjob.h

    This file is part of qgpgme, the Qt API binding for gpgme

    Copyright (c) 2004 Klarälvdalens Datakonsult AB

    Copyright (c) 2016 by Bundesamt für Sicherheit in der Informationstechnik

    Software engineering by Intevation GmbH

    QGpgME 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.

    QGpgME 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 __QGPGME_EXPORTJOB_H__

#define __QGPGME_EXPORTJOB_H__

#include "qgpgme_export.h"

#include "job.h"

#include <QtCore/QByteArray>

namespace GpgME

{

class Error;

}

class QStringList;

namespace QGpgME

{

/**

   @short An abstract base class for asynchronous exporters

   To use a ExportJob, first obtain an instance from the

   CryptoBackend implementation, connect the progress() and result()

   signals to suitable slots and then start the export with a call

   to start(). This call might fail, in which case the ExportJob

   instance will have scheduled it's own destruction with a call to

   QObject::deleteLater().

   After result() is emitted, the ExportJob will schedule it's own

   destruction by calling QObject::deleteLater().

*/

class QGPGME_EXPORT ExportJob : public Job

{

    Q_OBJECT

protected:

    explicit ExportJob(QObject *parent);

public:

    ~ExportJob();

    /**

       Starts the export operation. \a patterns is a list of patterns

       used to restrict the list of keys exported. Empty patterns are

       ignored. If \a patterns is empty or contains only empty

       strings, all available keys are exported.

    */

    virtual GpgME::Error start(const QStringList &patterns) = 0;

Q_SIGNALS:

    void result(const GpgME::Error &result, const QByteArray &keyData, const QString &auditLogAsHtml = QString(), const GpgME::Error &auditLogError = GpgME::Error());

};

}

#endif // __QGPGME_EXPORTJOB_H__