Reduced the messagetreeparser to aproximately what we actually require

While in a much more managable state it's still not pretty.
However, further refactoring can now gradually happen as we need to do
further work on it.

Things that should happen eventually:
* Simplify the logic that creates the messageparts (we don't need the  whole formatter plugin complexity)
* Get rid of the nodehelper (let the parts hold the necessary data)
* Get rid of partmetadata (let the part handleit)

1 files changed, 96 insertions, 0 deletions

diff --git a/framework/src/domain/mime/mimetreeparser/bodypartformatter.h b/framework/src/domain/mime/mimetreeparser/bodypartformatter.h
new file mode 100644
index 00000000..7e1fc74e
--- /dev/null
+++ b/framework/src/domain/mime/mimetreeparser/bodypartformatter.h
@@ -0,0 +1,96 @@
+/*  -*- mode: C++; c-file-style: "gnu" -*-
+    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 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 __MIMETREEPARSER_INTERFACE_BODYPARTFORMATTER_H__
+#define __MIMETREEPARSER_INTERFACE_BODYPARTFORMATTER_H__
+
+#include <QObject>
+#include <QSharedPointer>
+
+#include "objecttreeparser.h"
+#include "messagepart.h"
+
+namespace MimeTreeParser
+{
+
+namespace Interface
+{
+
+class BodyPartURLHandler;
+class BodyPart;
+
+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 };
+
+    virtual MessagePart::Ptr process(BodyPart &part) const;
+};
+
+/**
+    @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
+
+}
+#endif // __MIMETREEPARSER_INTERFACE_BODYPARTFORMATTER_H__