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+/*
+ This file is part of KOrganizer.
+ Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+#ifndef KNEWSTUFF_H
+#define KNEWSTUFF_H
+
+#include <qstring.h>
+
+#include <kdemacros.h>
+
+class QObject;
+class QWidget;
+class KAction;
+class KActionCollection;
+
+namespace KNS {
+class Engine;
+class Entry;
+
+KAction* standardAction(const QString& what,
+ const QObject *recvr,
+ const char *slot,
+ KActionCollection* parent,
+ const char *name = 0);
+}
+
+/**
+ * @short This class provides the functionality to download and upload "new stuff".
+ *
+ * Applications have to subclass KNewStuff, implement the pure virtual functions
+ * and link to against libknewstuff.
+ *
+ * By calling download() the download process is started which means that a list
+ * of "providers" is fetched from a "master server", information about new stuff
+ * is collected from the providers and presented to the user. Selected entries
+ * get downloaded and installed to the application. The required functions to
+ * install new stuff are provided by implementing install(). The location where
+ * the downloaded files are stored can be customized by reimplementing
+ * downloadDestination().
+ *
+ * By calling upload() the upload process is started which means the user has to
+ * select a provider from the list fetched from the master server and to put in
+ * information about the entry to be uploaded. Then the file to be uploaded is
+ * fetched from the application by calling createUploadFile() and transfered to
+ * the upload destination specified in the provider list.
+ *
+ * @author Cornelius Schumacher (schumacher@kde.org)
+ * \par Maintainer:
+ * Josef Spillner (spillner@kde.org)
+ *
+ * @since 3.3
+ */
+class KDE_EXPORT KNewStuff
+{
+ public:
+ /**
+ Constructor.
+
+ @param type type of data to be handled, should be something like
+ korganizer/calendar, kword/template, kdesktop/wallpaper
+ @param parentWidget parent widget of dialogs opened by the KNewStuff
+ engine
+ */
+ KNewStuff( const QString &type, QWidget *parentWidget = 0 );
+
+ /**
+ Constructor.
+
+ @param type type of data to be handled, should be something like
+ korganizer/calendar, kword/template, kdesktop/wallpaper
+ @param providerList the URL of the provider list
+ @param parentWidget parent widget of dialogs opened by the KNewStuff
+ engine
+ */
+ KNewStuff( const QString &type, const QString &providerList, QWidget *parentWidget = 0 );
+ virtual ~KNewStuff();
+
+ /**
+ Return type of data.
+ */
+ QString type() const;
+
+ /**
+ Return parent widget.
+ */
+ QWidget *parentWidget() const;
+
+ /**
+ Start download process.
+ */
+ void download();
+
+ /**
+ Start upload process.
+ */
+ void upload();
+
+ /**
+ Upload with pre-defined files.
+ */
+ void upload( const QString &fileName, const QString previewName );
+
+ /**
+ Install file to application. The given fileName points to the file
+ downloaded by the KNewStuff engine. This is a temporary file by default.
+ The application can do whatever is needed to handle the information
+ contained in the file.
+
+ The function returns true, when the installation
+ was successful and false if were errors.
+
+ @param fileName name of downloaded file
+ */
+ virtual bool install( const QString &fileName ) = 0;
+ /**
+ Create a file to be uploaded to a "new stuff provider" and return the
+ filename. The format of the file is application specific. The only
+ constraint is that the corresponding install() implementation is able to
+ use the file.
+
+ @param fileName name of the file to be written
+ @return @c true on success, @c false on error.
+ */
+ virtual bool createUploadFile( const QString &fileName ) = 0;
+
+ /**
+ Return a filename which should be used as destination for downloading the
+ specified new stuff entry. Reimplement this function, if you don't want
+ the new stuff to be downloaded to a temporary file.
+ */
+ virtual QString downloadDestination( KNS::Entry *entry );
+
+
+ protected:
+ /**
+ Get the pointer to the engine. Needed by subclasses to access the KNS::Engine object.
+ */
+ KNS::Engine *engine() { return mEngine; }
+
+
+ private:
+ KNS::Engine *mEngine;
+};
+
+#endif