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255 lines
8.2 KiB
255 lines
8.2 KiB
/* -*- c++ -*-
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attachmentstrategy.cpp
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This file is part of KMail, the KDE mail client.
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Copyright (c) 2003 Marc Mutz <mutz@kde.org>
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KMail is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License, version 2, as
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published by the Free Software Foundation.
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KMail is distributed in the hope that it will be useful, but
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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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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "attachmentstrategy.h"
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#include "partNode.h"
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#include "kmmsgpart.h"
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#include <tqstring.h>
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#include <kdebug.h>
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namespace KMail {
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static AttachmentStrategy::Display smartDisplay( const partNode *node )
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{
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if ( node->hasContentDispositionInline() )
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// explict "inline" disposition:
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return AttachmentStrategy::Inline;
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if ( node->isAttachment() )
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// explicit "attachment" disposition:
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return AttachmentStrategy::AsIcon;
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if ( node->type() == DwMime::kTypeText &&
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node->msgPart().fileName().stripWhiteSpace().isEmpty() &&
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node->msgPart().name().stripWhiteSpace().isEmpty() )
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// text/* w/o filename parameter:
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return AttachmentStrategy::Inline;
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return AttachmentStrategy::AsIcon;
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}
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//
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// IconicAttachmentStrategy:
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// show everything but the first text/plain body as icons
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//
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class IconicAttachmentStrategy : public AttachmentStrategy {
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friend class ::KMail::AttachmentStrategy;
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protected:
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IconicAttachmentStrategy() : AttachmentStrategy() {}
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virtual ~IconicAttachmentStrategy() {}
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public:
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const char * name() const { return "iconic"; }
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const AttachmentStrategy * next() const { return smart(); }
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const AttachmentStrategy * prev() const { return headerOnly(); }
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bool inlineNestedMessages() const { return false; }
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Display defaultDisplay( const partNode * ) const { return AsIcon; }
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};
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//
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// SmartAttachmentStrategy:
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// in addition to Iconic, show all body parts
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// with content-disposition == "inline" and
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// all text parts without a filename or name parameter inline
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//
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class SmartAttachmentStrategy : public AttachmentStrategy {
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friend class ::KMail::AttachmentStrategy;
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protected:
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SmartAttachmentStrategy() : AttachmentStrategy() {}
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virtual ~SmartAttachmentStrategy() {}
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public:
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const char * name() const { return "smart"; }
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const AttachmentStrategy * next() const { return inlined(); }
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const AttachmentStrategy * prev() const { return iconic(); }
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bool inlineNestedMessages() const { return true; }
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Display defaultDisplay( const partNode * node ) const {
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return smartDisplay( node );
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}
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};
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//
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// InlinedAttachmentStrategy:
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// show everything possible inline
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//
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class InlinedAttachmentStrategy : public AttachmentStrategy {
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friend class ::KMail::AttachmentStrategy;
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protected:
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InlinedAttachmentStrategy() : AttachmentStrategy() {}
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virtual ~InlinedAttachmentStrategy() {}
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public:
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const char * name() const { return "inlined"; }
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const AttachmentStrategy * next() const { return hidden(); }
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const AttachmentStrategy * prev() const { return smart(); }
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bool inlineNestedMessages() const { return true; }
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Display defaultDisplay( const partNode * ) const { return Inline; }
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};
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//
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// HiddenAttachmentStrategy
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// show nothing except the first text/plain body part _at all_
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//
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class HiddenAttachmentStrategy : public AttachmentStrategy {
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friend class ::KMail::AttachmentStrategy;
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protected:
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HiddenAttachmentStrategy() : AttachmentStrategy() {}
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virtual ~HiddenAttachmentStrategy() {}
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public:
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const char * name() const { return "hidden"; }
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const AttachmentStrategy * next() const { return headerOnly(); }
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const AttachmentStrategy * prev() const { return inlined(); }
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bool inlineNestedMessages() const { return false; }
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Display defaultDisplay( const partNode * ) const { return None; }
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};
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class HeaderOnlyAttachmentStrategy : public AttachmentStrategy {
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friend class ::KMail::AttachmentStrategy;
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protected:
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HeaderOnlyAttachmentStrategy() : AttachmentStrategy() {}
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virtual ~HeaderOnlyAttachmentStrategy() {}
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public:
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const char * name() const { return "headerOnly"; }
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const AttachmentStrategy * next() const { return iconic(); }
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const AttachmentStrategy * prev() const { return hidden(); }
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bool inlineNestedMessages() const {
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return true;
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}
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Display defaultDisplay( const partNode *node ) const {
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if ( node->isInEncapsulatedMessage() ) {
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return smartDisplay( node );
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}
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partNode::AttachmentDisplayInfo info = node->attachmentDisplayInfo();
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if ( info.displayInHeader ) {
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// The entire point about this attachment strategy: Hide attachments in the body that are
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// already displayed in the attachment quick list
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return None;
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} else {
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return smartDisplay( node );
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}
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}
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};
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//
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// AttachmentStrategy abstract base:
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//
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AttachmentStrategy::AttachmentStrategy() {
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}
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AttachmentStrategy::~AttachmentStrategy() {
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}
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const AttachmentStrategy * AttachmentStrategy::create( Type type ) {
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switch ( type ) {
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case Iconic: return iconic();
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case Smart: return smart();
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case Inlined: return inlined();
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case Hidden: return hidden();
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case HeaderOnly: return headerOnly();
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}
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kdFatal( 5006 ) << "AttachmentStrategy::create(): Unknown attachment startegy ( type == "
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<< (int)type << " ) requested!" << endl;
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return 0; // make compiler happy
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}
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const AttachmentStrategy * AttachmentStrategy::create( const TQString & type ) {
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TQString lowerType = type.lower();
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if ( lowerType == "iconic" ) return iconic();
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//if ( lowerType == "smart" ) return smart(); // not needed, see below
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if ( lowerType == "inlined" ) return inlined();
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if ( lowerType == "hidden" ) return hidden();
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if ( lowerType == "headeronly" ) return headerOnly();
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// don't kdFatal here, b/c the strings are user-provided
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// (KConfig), so fail gracefully to the default:
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return smart();
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}
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static const AttachmentStrategy * iconicStrategy = 0;
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static const AttachmentStrategy * smartStrategy = 0;
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static const AttachmentStrategy * inlinedStrategy = 0;
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static const AttachmentStrategy * hiddenStrategy = 0;
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static const AttachmentStrategy * headerOnlyStrategy = 0;
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const AttachmentStrategy * AttachmentStrategy::iconic() {
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if ( !iconicStrategy )
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iconicStrategy = new IconicAttachmentStrategy();
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return iconicStrategy;
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}
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const AttachmentStrategy * AttachmentStrategy::smart() {
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if ( !smartStrategy )
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smartStrategy = new SmartAttachmentStrategy();
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return smartStrategy;
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}
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const AttachmentStrategy * AttachmentStrategy::inlined() {
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if ( !inlinedStrategy )
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inlinedStrategy = new InlinedAttachmentStrategy();
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return inlinedStrategy;
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}
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const AttachmentStrategy * AttachmentStrategy::hidden() {
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if ( !hiddenStrategy )
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hiddenStrategy = new HiddenAttachmentStrategy();
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return hiddenStrategy;
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}
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const AttachmentStrategy * AttachmentStrategy::headerOnly() {
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if ( !headerOnlyStrategy )
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headerOnlyStrategy = new HeaderOnlyAttachmentStrategy();
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return headerOnlyStrategy;
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}
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} // namespace KMail
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