/* This file is part of KDE Kontact. Copyright (c) 2003 David Faure 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 KONTACT_UNIQUEAPPHANDLER_H #define KONTACT_UNIQUEAPPHANDLER_H #include #include #include namespace Kontact { /** * DCOP Object that has the name of the standalone application (e.g. "kmail") * and implements newInstance() so that running the separate application does * the right thing when kontact is running. * By default this means simply bringing the main window to the front, * but newInstance can be reimplemented. */ class TDE_EXPORT UniqueAppHandler : public DCOPObject { K_DCOP public: UniqueAppHandler( Plugin* plugin ) : DCOPObject( plugin->name() ), mPlugin( plugin ) {} /// This must be reimplemented so that app-specific command line options can be parsed virtual void loadCommandLineOptions() = 0; /// We can't use k_dcop and dcopidl here, because the data passed /// to newInstance can't be expressed in terms of normal data types. virtual int newInstance(); Plugin* plugin() const { return mPlugin; } private: Plugin* mPlugin; }; /// Base class for UniqueAppHandler class UniqueAppHandlerFactoryBase { public: virtual UniqueAppHandler* createHandler( Plugin* ) = 0; }; /** * Used by UniqueAppWatcher below, to create the above UniqueAppHandler object * when necessary. * The template argument is the UniqueAppHandler-derived class. * This allows to remove the need to subclass UniqueAppWatcher. */ template class UniqueAppHandlerFactory : public UniqueAppHandlerFactoryBase { public: virtual UniqueAppHandler* createHandler( Plugin* plugin ) { (void)plugin->dcopClient(); // ensure that we take over the DCOP name return new T( plugin ); } }; /** * If the standalone application is running by itself, we need to watch * for when the user closes it, and activate the uniqueapphandler then. * This prevents, on purpose, that the standalone app can be restarted. * Kontact takes over from there. * */ class TDE_EXPORT UniqueAppWatcher : public TQObject { TQ_OBJECT public: /** * Create an instance of UniqueAppWatcher, which does everything necessary * for the "unique application" behavior: create the UniqueAppHandler as soon * as possible, i.e. either right now or when the standalone app is closed. * * @param factory templatized factory to create the handler. Example: * ... Note that the watcher takes ownership of the factory. * @param plugin is the plugin application */ UniqueAppWatcher( UniqueAppHandlerFactoryBase* factory, Plugin* plugin ); virtual ~UniqueAppWatcher(); bool isRunningStandalone() const { return mRunningStandalone; } protected slots: void unregisteredFromDCOP( const TQCString& appId ); private: bool mRunningStandalone; UniqueAppHandlerFactoryBase* mFactory; Plugin* mPlugin; }; } // namespace #endif /* KONTACT_UNIQUEAPPHANDLER_H */