factory.cpp00001
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00024 #include <kdebug.h>
00025 #include <klocale.h>
00026 #include <ksimpleconfig.h>
00027 #include <kstandarddirs.h>
00028 #include <kstaticdeleter.h>
00029
00030 #include <qfile.h>
00031
00032 #include "resource.h"
00033 #include "factory.h"
00034
00035 using namespace KRES;
00036
00037 QDict<Factory> *Factory::mSelves = 0;
00038 static KStaticDeleter< QDict<Factory> > staticDeleter;
00039
00040 Factory *Factory::self( const QString& resourceFamily )
00041 {
00042 kdDebug(5650) << "Factory::self()" << endl;
00043
00044 Factory *factory = 0;
00045 if ( !mSelves )
00046 staticDeleter.setObject( mSelves, new QDict<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 QString& resourceFamily ) :
00059 mResourceFamily( resourceFamily )
00060 {
00061 KTrader::OfferList plugins = KTrader::self()->query( "KResources/Plugin", QString( "[X-KDE-ResourceFamily] == '%1'" )
00062 .arg( resourceFamily ) );
00063 KTrader::OfferList::ConstIterator it;
00064 for ( it = plugins.begin(); it != plugins.end(); ++it ) {
00065 QVariant 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 QStringList Factory::typeNames() const
00076 {
00077 return mTypeMap.keys();
00078 }
00079
00080 ConfigWidget *Factory::configWidget( const QString& type, QWidget *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 QString Factory::typeName( const QString &type ) const
00111 {
00112 if ( type.isEmpty() || !mTypeMap.contains( type ) )
00113 return QString();
00114
00115 KService::Ptr ptr = mTypeMap[ type ];
00116 return ptr->name();
00117 }
00118
00119 QString Factory::typeDescription( const QString &type ) const
00120 {
00121 if ( type.isEmpty() || !mTypeMap.contains( type ) )
00122 return QString();
00123
00124 KService::Ptr ptr = mTypeMap[ type ];
00125 return ptr->comment();
00126 }
00127
00128 Resource *Factory::resource( const QString& 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 }
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