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kabc

resourcenet.h

00001 /*
00002     This file is part of libkabc.
00003     Copyright (c) 2003 Tobias Koenig <tokoe@kde.org>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public License
00016     along with this library; see the file COPYING.LIB.  If not, write to
00017     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018     Boston, MA 02110-1301, USA.
00019 */
00020 
00021 #ifndef KABC_RESOURCENET_H
00022 #define KABC_RESOURCENET_H
00023 
00024 #include "kabc/resource.h"
00025 #include <sys/types.h>
00026 
00027 class QFile;
00028 class KTemporaryFile;
00029 
00030 class KJob;
00031 
00032 namespace KABC {
00033 
00034 class Format;
00035 
00039 class KABC_NET_EXPORT ResourceNet : public Resource
00040 {
00041   Q_OBJECT
00042 
00043   public:
00044     ResourceNet();
00045     explicit ResourceNet( const KConfigGroup &group );
00046     ResourceNet( const KUrl &url, const QString &format );
00047     ~ResourceNet();
00048 
00049     virtual void writeConfig( KConfigGroup &group );
00050 
00051     virtual bool doOpen();
00052     virtual void doClose();
00053 
00054     virtual Ticket *requestSaveTicket();
00055     virtual void releaseSaveTicket( Ticket *ticket );
00056 
00057     virtual bool load();
00058     virtual bool asyncLoad();
00059     virtual bool save( Ticket *ticket );
00060     virtual bool asyncSave( Ticket *ticket );
00061 
00065     void setUrl( const KUrl &url );
00066 
00070     KUrl url() const;
00071 
00075     void setFormat( const QString &name );
00076 
00080     QString format() const;
00081 
00082   protected:
00083     void init( const KUrl &url, const QString &format );
00084 
00085   private Q_SLOTS:
00086     void downloadFinished( KJob *job );
00087     void uploadFinished( KJob *job );
00088 
00089   private:
00090     bool clearAndLoad( QFile *file );
00091     void saveToFile( QFile *file );
00092     bool hasTempFile() const { return mTempFile != 0; }
00093     void abortAsyncLoading();
00094     void abortAsyncSaving();
00095     bool createLocalTempFile();
00096     void deleteLocalTempFile();
00097     void deleteStaleTempFile();
00098 
00099     Format *mFormat;
00100     QString mFormatName;
00101 
00102     KUrl mUrl;
00103     KTemporaryFile *mTempFile;
00104 
00105     class ResourceNetPrivate;
00106     ResourceNetPrivate *d;
00107 };
00108 
00109 }
00110 
00111 #endif

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