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/*
bodypartformatter.h
This file is part of KMail's plugin interface.
Copyright (c) 2004 Marc Mutz <mutz@kde.org>,
Ingo Kloecker <kloecker@kde.org>
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 TQt library by Trolltech AS, Norway (or with modified versions
of TQt that use the same license as TQt), 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
TQt. 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 __KMAIL_INTERFACE_BODYPARTFORMATTER_H__
#define __KMAIL_INTERFACE_BODYPARTFORMATTER_H__
namespace KMail {
class Callback;
class HtmlWriter;
namespace Interface {
class BodyPart;
class BodyPartURLHandler;
class BodyPartFormatter {
public:
virtual ~BodyPartFormatter() {}
/**
@li Ok returned when format() generated some HTML
@li NeedContent returned when format() needs the body of the part
@li AsIcon returned when the part should be shown iconified
@li Failed returned when formatting failed. Currently equivalent to Ok
*/
enum Result { Ok, NeedContent, AsIcon, Failed };
/**
Format body part \a part by generating some HTML and writing
that to \a writer.
@return the result code (see above)
*/
virtual Result format( BodyPart * part, KMail::HtmlWriter * writer, Callback &c ) const = 0;
};
/**
@short interface for BodyPartFormatter plugins
The interface is queried by for types, subtypes, and the
corresponding bodypart formatter, and the result inserted into
the bodypart formatter factory.
Subtype alone or both type and subtype may be "*", which is
taken as a wildcard, so that e.g. type=text subtype=* matches
any text subtype, but with lesser specificity than a concrete
mimetype such as text/plain. type=* is only allowed when
subtype=*, too.
*/
class BodyPartFormatterPlugin {
public:
virtual ~BodyPartFormatterPlugin() {}
virtual const BodyPartFormatter * bodyPartFormatter( int idx ) const = 0;
virtual const char * type( int idx ) const = 0;
virtual const char * subtype( int idx ) const = 0;
virtual const BodyPartURLHandler * urlHandler( int idx ) const = 0;
};
} // namespace Interface
} // namespace KMail
#endif // __KMAIL_INTERFACE_BODYPARTFORMATTER_H__
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