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219 lines
7.1 KiB
219 lines
7.1 KiB
/*
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Copyright (c) 1999 Matthias Hoelzer-Kluepfel <hoelzer@kde.org>
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Copyright (c) 2002-2003 Daniel Molkentin <molkentin@kde.org>
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This file is part of the KDE project
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2, as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef MODLOADER_H
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#define MODLOADER_H
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#include <tdecmodule.h>
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#include <tdecmoduleinfo.h>
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class TQWidget;
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class KLibLoader;
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/**
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* @ingroup tdecmodule
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* @brief Loads a KControl Module.
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*
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* TDECModuleLoader tries in several ways
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* to locate and load a TDECModule. If loading fails a
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* zero pointer is returned. \n
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* It is very unlikely TDECModuleLoader is what you want
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* and @ref TDECModuleProxy suits your needs.
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*
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* @author Matthias Hoelzer-Kluepfel <mhk@kde.org>
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* @author Frans Englich <frans.englich@telia.com>
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* @since 3.2
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* @internal
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**/
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class TDEUTILS_EXPORT TDECModuleLoader
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{
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public:
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/**
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* Loads a @ref TDECModule. If loading fails a zero pointer is returned.
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* @param module what module to load
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* @param withFallback if true and loading failed a separate window
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* with the module may appear and a zero pointer is a returned
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* @param parent The parent widget
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* @param name The widget's name
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* @param args A list of arguments for the module to load
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*
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* @return a pointer to the loaded @ref TDECModule
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*
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* @deprecated use the function which explicitly states the error reporting
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* method
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*/
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static TDECModule *loadModule(const TDECModuleInfo &module, bool withFallback=true,
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TQWidget * parent = 0, const char * name = 0,
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const TQStringList & args = TQStringList() ) TDE_DEPRECATED;
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/**
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* Loads a @ref TDECModule. If loading fails a zero pointer is returned.
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* @param module what module to load
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* with the module may appear and a zero pointer is a returned
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* @param parent The parent widget
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* @param name The widget's name
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* @param args A list of arguments for the module to load
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*
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* @deprecated use the function which explicitly states the error reporting
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* method
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*/
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static TDECModule *loadModule(const TQString &module, TQWidget *parent = 0,
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const char *name = 0, const TQStringList & args = TQStringList()) TDE_DEPRECATED;
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/**
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* Determines the way errors are reported
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*/
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enum ErrorReporting {
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/**
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* no error reporting is done
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* */
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None = 0,
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/**
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* the error report is shown instead of the
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* TDECModule that should have * been loaded
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*/
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Inline = 1,
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/**
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* shows a dialog with the error report
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*/
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Dialog = 2,
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/**
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* does both Inline and Dialog
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*/
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Both = 3
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};
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/**
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* Loads a @ref TDECModule. If loading fails a zero pointer is returned.
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* @param module what module to load
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* @param report see ErrorReporting
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* @param withFallback if true and loading failed a separate window
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* with the module may appear and a zero pointer is a returned
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* @param parent The parent widget
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* @param name The widget's name
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* @param args A list of arguments for the module to load
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*
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* @return a pointer to the loaded @ref TDECModule
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* @since 3.4
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*/
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static TDECModule *loadModule(const TDECModuleInfo &module, ErrorReporting
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report, bool withFallback=true, TQWidget * parent = 0,
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const char * name = 0, const TQStringList & args = TQStringList() );
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/**
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* Loads a @ref TDECModule. If loading fails a zero pointer is returned.
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* @param module what module to load
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* @param report see ErrorReporting
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* with the module may appear and a zero pointer is a returned
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* @param parent The parent widget
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* @param name The widget's name
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* @param args A list of arguments for the module to load
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*
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* @return a pointer to the loaded @ref TDECModule
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* @since 3.4
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*/
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static TDECModule *loadModule(const TQString &module, ErrorReporting
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report, TQWidget *parent = 0, const char *name = 0,
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const TQStringList & args = TQStringList());
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/**
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* Unloads the module's library
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* @param mod What module to unload for
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*/
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static void unloadModule(const TDECModuleInfo &mod);
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/**
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* Display a message box explaining an error occured and possible
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* reasons to why.
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*
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* @deprecated Use a constructor with ErrorReporting set to Dialog to show a
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* message box like this function did.
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*/
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static void showLastLoaderError(TQWidget *parent) TDE_DEPRECATED;
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/**
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* Checks whether an TDECModule should be shown by running its
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* test function. If it is unsure whether a module should be shown, it should
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* be made available, leaving the decision to the user.
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* If false is returned, the module should not be loaded in any interface.
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*
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* A module declares it needs to be tested by having "X-TDE-Test-Module=true" in
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* its desktop file. When that line exists, the following code must be available
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* in the module's library:
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*
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* \code
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* extern "C"
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* {
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* bool test_moduleName()
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* {
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* // Code testing for hardware/software presence.
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* return true; // and the modue will be loaded.
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* }
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*
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* }
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* \endcode
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*
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* where moduleName is the library name for the module.
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*
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* @param module the module to check
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* @returns true if the module should be loaded
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* @since 3.4
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*/
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static bool testModule( const TQString& module );
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/**
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* Convenience function, essentially the same as above.
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*
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* @param module the module to check
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* @returns true if the module should be loaded
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* @since 3.4
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*/
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static bool testModule( const TDECModuleInfo& module );
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/**
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* Returns a TDECModule containing the messages @p report and @p text.
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*
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* @param report the type of error reporting, see ErrorReporting
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* @param text the main message
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* @param details any additional details
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* @param parent The parent widget
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*
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* @since 3.4
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* @internal
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*/
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static TDECModule* reportError( ErrorReporting report, const TQString & text,
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TQString details, TQWidget * parent );
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private:
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/**
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* Internal loader called by the public loaders.
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* @internal
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*/
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static TDECModule* load(const TDECModuleInfo &mod, const TQString &libname,
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KLibLoader *loader, ErrorReporting report, TQWidget * parent = 0,
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const char * name = 0, const TQStringList & args = TQStringList() );
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};
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#endif // MODLOADER_H
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