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/*
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downloadjob.h
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This file is part of libkleopatra, the KDE keymanagement library
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Copyright (c) 2004 Klar<EFBFBD>lvdalens Datakonsult AB
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Libkleopatra is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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Libkleopatra is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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In addition, as a special exception, the copyright holders give
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permission to link the code of this program with any edition of
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the TQt library by Trolltech AS, Norway (or with modified versions
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of TQt that use the same license as TQt), and distribute linked
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combinations including the two. You must obey the GNU General
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Public License in all respects for all of the code used other than
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TQt. If you modify this file, you may extend this exception to
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your version of the file, but you are not obligated to do so. If
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you do not wish to do so, delete this exception statement from
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your version.
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*/
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#ifndef __KLEO_DOWNLOADJOB_H__
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#define __KLEO_DOWNLOADJOB_H__
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#include "job.h"
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#include <tqcstring.h>
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namespace GpgME {
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class Error;
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}
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class TQStringList;
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namespace Kleo {
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/**
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@short An abstract base class for asynchronous downloaders
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To use a DownloadJob, first obtain an instance from the
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CryptoBackend implementation, connect the progress() and result()
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signals to suitable slots and then start the download with a call
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to start(). This call might fail, in which case the DownloadJob
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instance will have scheduled it's own destruction with a call to
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TQObject::deleteLater().
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After result() is emitted, the DownloadJob will schedule it's own
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destruction by calling TQObject::deleteLater().
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*/
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class DownloadJob : public Job {
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Q_OBJECT
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protected:
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DownloadJob( TQObject * parent, const char * name );
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public:
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~DownloadJob();
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/**
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Starts the download operation. \a fingerprints is a list of
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fingerprints used to specify the list of keys downloaded. Empty
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patterns are ignored. If \a fingerprints is empty, contains
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only empty strings or anything other than fingerprints, the
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result is undefined.
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*/
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virtual GpgME::Error start( const TQStringList & fingerprints ) = 0;
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signals:
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void result( const GpgME::Error & result, const TQByteArray & keyData );
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};
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}
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#endif // __KLEO_DOWNLOADJOB_H__
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