factory.cpp
00001 /* 00002 This file is part of libkresources. 00003 00004 Copyright (c) 2002 Tobias Koenig <tokoe@kde.org> 00005 Copyright (c) 2002 Jan-Pascal van Best <janpascal@vanbest.org> 00006 Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org> 00007 00008 This library is free software; you can redistribute it and/or 00009 modify it under the terms of the GNU Library General Public 00010 License as published by the Free Software Foundation; either 00011 version 2 of the License, or (at your option) any later version. 00012 00013 This library is distributed in the hope that it will be useful, 00014 but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 Library General Public License for more details. 00017 00018 You should have received a copy of the GNU Library General Public License 00019 along with this library; see the file COPYING.LIB. If not, write to 00020 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 00021 Boston, MA 02110-1301, USA. 00022 */ 00023 00024 #include <kdebug.h> 00025 #include <klocale.h> 00026 #include <ksimpleconfig.h> 00027 #include <kstandarddirs.h> 00028 #include <kstaticdeleter.h> 00029 00030 #include <tqfile.h> 00031 00032 #include "resource.h" 00033 #include "factory.h" 00034 00035 using namespace KRES; 00036 00037 TQDict<Factory> *Factory::mSelves = 0; 00038 static KStaticDeleter< TQDict<Factory> > staticDeleter; 00039 00040 Factory *Factory::self( const TQString& resourceFamily ) 00041 { 00042 kdDebug(5650) << "Factory::self()" << endl; 00043 00044 Factory *factory = 0; 00045 if ( !mSelves ) 00046 staticDeleter.setObject( mSelves, new TQDict<Factory> ); 00047 00048 factory = mSelves->find( resourceFamily ); 00049 00050 if ( !factory ) { 00051 factory = new Factory( resourceFamily ); 00052 mSelves->insert( resourceFamily, factory ); 00053 } 00054 00055 return factory; 00056 } 00057 00058 Factory::Factory( const TQString& resourceFamily ) : 00059 mResourceFamily( resourceFamily ) 00060 { 00061 KTrader::OfferList plugins = KTrader::self()->query( "KResources/Plugin", TQString( "[X-KDE-ResourceFamily] == '%1'" ) 00062 .arg( resourceFamily ) ); 00063 KTrader::OfferList::ConstIterator it; 00064 for ( it = plugins.begin(); it != plugins.end(); ++it ) { 00065 TQVariant type = (*it)->property( "X-KDE-ResourceType" ); 00066 if ( !type.toString().isEmpty() ) 00067 mTypeMap.insert( type.toString(), *it ); 00068 } 00069 } 00070 00071 Factory::~Factory() 00072 { 00073 } 00074 00075 TQStringList Factory::typeNames() const 00076 { 00077 return mTypeMap.keys(); 00078 } 00079 00080 ConfigWidget *Factory::configWidget( const TQString& type, TQWidget *parent ) 00081 { 00082 if ( type.isEmpty() || !mTypeMap.contains( type ) ) 00083 return 0; 00084 00085 KService::Ptr ptr = mTypeMap[ type ]; 00086 KLibFactory *factory = KLibLoader::self()->factory( ptr->library().latin1() ); 00087 if ( !factory ) { 00088 kdDebug(5650) << "KRES::Factory::configWidget(): Factory creation failed " 00089 << KLibLoader::self()->lastErrorMessage() << endl; 00090 return 0; 00091 } 00092 00093 PluginFactoryBase *pluginFactory = static_cast<PluginFactoryBase *>( factory ); 00094 00095 if ( !pluginFactory ) { 00096 kdDebug(5650) << "KRES::Factory::configWidget(): no plugin factory." 00097 << endl; 00098 return 0; 00099 } 00100 00101 ConfigWidget *wdg = pluginFactory->configWidget( parent ); 00102 if ( !wdg ) { 00103 kdDebug(5650) << "'" << ptr->library() << "' doesn't provide a ConfigWidget" << endl; 00104 return 0; 00105 } 00106 00107 return wdg; 00108 } 00109 00110 TQString Factory::typeName( const TQString &type ) const 00111 { 00112 if ( type.isEmpty() || !mTypeMap.contains( type ) ) 00113 return TQString(); 00114 00115 KService::Ptr ptr = mTypeMap[ type ]; 00116 return ptr->name(); 00117 } 00118 00119 TQString Factory::typeDescription( const TQString &type ) const 00120 { 00121 if ( type.isEmpty() || !mTypeMap.contains( type ) ) 00122 return TQString(); 00123 00124 KService::Ptr ptr = mTypeMap[ type ]; 00125 return ptr->comment(); 00126 } 00127 00128 Resource *Factory::resource( const TQString& type, const KConfig *config ) 00129 { 00130 kdDebug(5650) << "Factory::resource( " << type << ", config )" << endl; 00131 00132 if ( type.isEmpty() || !mTypeMap.contains( type ) ) { 00133 kdDebug(5650) << "Factory::resource() no such type " << type << endl; 00134 return 0; 00135 } 00136 00137 KService::Ptr ptr = mTypeMap[ type ]; 00138 KLibFactory *factory = KLibLoader::self()->factory( ptr->library().latin1() ); 00139 if ( !factory ) { 00140 kdDebug(5650) << "KRES::Factory::resource(): Factory creation failed " 00141 << KLibLoader::self()->lastErrorMessage() << endl; 00142 return 0; 00143 } 00144 00145 PluginFactoryBase *pluginFactory = static_cast<PluginFactoryBase *>( factory ); 00146 00147 if ( !pluginFactory ) { 00148 kdDebug(5650) << "KRES::Factory::resource(): no plugin factory." << endl; 00149 return 0; 00150 } 00151 00152 Resource *resource = pluginFactory->resource( config ); 00153 if ( !resource ) { 00154 kdDebug(5650) << "'" << ptr->library() << "' is not a " + mResourceFamily + 00155 " plugin." << endl; 00156 return 0; 00157 } 00158 00159 resource->setType( type ); 00160 00161 return resource; 00162 }