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/*
interfaces/urlhandler.h
This file is part of KMail, the KDE mail client.
Copyright (c) 2003 Marc Mutz <mutz@kde.org>
KMail is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
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_INTERFACES_URLHANDLER_H__
#define __KMAIL_INTERFACES_URLHANDLER_H__
class KURL;
class TQString;
class TQPoint;
class KMReaderWin;
namespace KMail {
/**
* @short An interface to reader link handlers
* @author Marc Mutz <mutz@kde.org>
*
* The KMReaderWin parameters are temporary until such time as
* the Memento-store is in place.
*/
class URLHandler {
public:
virtual ~URLHandler() {}
/** Called when LMB-clicking on a link in the reader. Should start
processing equivalent to "opening" the link.
@return true if the click was handled by this URLHandler,
false otherwise.
*/
virtual bool handleClick( const KURL & url, KMReaderWin * w ) const = 0;
/**
* Called when shift-clicking the link in the reader.
* @return true if the click was handled by this URLHandler, false otherwise
*/
virtual bool handleShiftClick( const KURL &url, KMReaderWin *window ) const {
Q_UNUSED( url );
Q_UNUSED( window );
return false;
}
/**
* @return should return true if this URLHandler will handle the drag
*/
virtual bool willHandleDrag( const KURL &url, const TQString &imagePath,
KMReaderWin *window ) const {
Q_UNUSED( url );
Q_UNUSED( window );
Q_UNUSED( imagePath );
return false;
}
/**
* Called when starting a drag with the given URL.
* If the drag is handled, you should create a drag object.
* @return true if the click was handled by this URLHandler, false otherwise
*/
virtual bool handleDrag( const KURL &url, const TQString &imagePath,
KMReaderWin *window ) const {
Q_UNUSED( url );
Q_UNUSED( window );
Q_UNUSED( imagePath );
return false;
}
/** Called when RMB-clicking on a link in the reader. Should show
a context menu at the specified point with the specified
widget as parent.
@return true if the right-click was handled by this
URLHandler, false otherwise.
*/
virtual bool handleContextMenuRequest( const KURL & url, const TQPoint & p, KMReaderWin * w ) const = 0;
/** Called when hovering over a link.
@return a string to be shown in the status bar while hovering
over this link.
*/
virtual TQString statusBarMessage( const KURL & url, KMReaderWin * w ) const = 0;
};
} // namespace KMail
#endif // __KMAIL_INTERFACES_URLHANDLER_H__
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