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diff --git a/tdeparts/plugin.h b/tdeparts/plugin.h
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+++ b/tdeparts/plugin.h
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+/* This file is part of the KDE project
+   Copyright (C) 1999 Simon Hausmann <hausmann@kde.org>
+             (C) 1999 David Faure <faure@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 PLUGIN_H
+#define PLUGIN_H
+
+#include <tqobject.h>
+#include <kaction.h>
+#include <kxmlguiclient.h>
+
+class TDEInstance;
+
+namespace KParts
+{
+
+/**
+ * A plugin is the way to add actions to an existing KParts application,
+ * or to a Part.
+ *
+ * The XML of those plugins looks exactly like of the shell or parts,
+ * with one small difference: The document tag should have an additional
+ * attribute, named "library", and contain the name of the library implementing
+ * the plugin.
+ *
+ * If you want this plugin to be used by a part, you need to
+ * install the rc file under the directory
+ * "data" (TDEDIR/share/apps usually)+"/instancename/kpartplugins/"
+ * where instancename is the name of the part's instance.
+ *
+ * You should also install a "plugin info" .desktop file with the same name.
+ * \see PluginInfo
+ */
+class KPARTS_EXPORT Plugin : public TQObject, virtual public KXMLGUIClient
+{
+    Q_OBJECT
+public:
+    /**
+     * Struct holding information about a plugin
+     */
+    struct PluginInfo
+    {
+        TQString m_relXMLFileName; ///< relative filename, i.e. kpartplugins/name
+        TQString m_absXMLFileName; ///< full path of most recent filename matching the relative filename
+        TQDomDocument m_document;
+    };
+
+    /**
+     * Construct a new KParts plugin.
+     */
+    Plugin( TQObject* parent = 0, const char* name = 0 );
+    /**
+     * Destructor.
+     */
+    virtual ~Plugin();
+
+    /**
+     * Reimplemented for internal reasons
+     */
+    virtual TQString xmlFile() const;
+
+    /**
+     * Reimplemented for internal reasons
+     */
+    virtual TQString localXMLFile() const;
+
+    /**
+     * Load the plugin libraries from the directories appropriate
+     * to @p instance and make the Plugin objects children of @p parent.
+     *
+     * It is recommended to use the last loadPlugins method instead,
+     * to support enabling and disabling of plugins.
+     */
+    static void loadPlugins( TQObject *parent, const TDEInstance * instance );
+
+    /**
+     * Load the plugin libraries specified by the list @p docs and make the
+     * Plugin objects children of @p parent .
+     *
+     * It is recommended to use the last loadPlugins method instead,
+     * to support enabling and disabling of plugins.
+     */
+    static void loadPlugins( TQObject *parent, const TQValueList<PluginInfo> &pluginInfos );
+
+    /**
+     * Load the plugin libraries specified by the list @p pluginInfos, make the
+     * Plugin objects children of @p parent, and use the given @p instance.
+     *
+     * It is recommended to use the last loadPlugins method instead,
+     * to support enabling and disabling of plugins.
+     */
+    static void loadPlugins( TQObject *parent, const TQValueList<PluginInfo> &pluginInfos, const TDEInstance * instance );
+
+    /**
+     * Load the plugin libraries for the given @p instance, make the
+     * Plugin objects children of @p parent, and insert the plugin as a child GUI client
+     * of @p parentGUIClient.
+     *
+     * This method uses the TDEConfig object of the given instance, to find out which
+     * plugins are enabled and which are disabled. What happens by default (i.e.
+     * for new plugins that are not in that config file) is controlled by
+     * @p enableNewPluginsByDefault. It can be overridden by the plugin if it
+     * sets the X-TDE-PluginInfo-EnabledByDefault key in the .desktop file
+     * (with the same name as the .rc file)
+     *
+     * If a disabled plugin is already loaded it will be removed from the GUI
+     * factory and deleted.
+     *
+     * This method is automatically called by KParts::Plugin and by KParts::MainWindow.
+     *
+     * If you call this method in an already constructed GUI (like when the user
+     * has changed which plugins are enabled) you need to add the new plugins to
+     * the KXMLGUIFactory:
+     * \code
+     * if( factory() )
+     * {
+     *   TQPtrList<KParts::Plugin> plugins = KParts::Plugin::pluginObjects( this );
+     *   TQPtrListIterator<KParts::Plugin> it( plugins );
+     *   KParts::Plugin * plugin;
+     *   while( ( plugin = it.current() ) != 0 )
+     *   {
+     *     ++it;
+     *     factory()->addClient(  plugin );
+     *   }
+     * }
+     * \endcode
+     */
+    static void loadPlugins( TQObject *parent, KXMLGUIClient* parentGUIClient, TDEInstance* instance, bool enableNewPluginsByDefault = true );
+
+    /**
+     * Returns a list of plugin objects loaded for @p parent. This
+     * functions basically calls the queryList method of
+     * TQObject to retrieve the list of child objects inheriting
+     * KParts::Plugin .
+     **/
+    static TQPtrList<Plugin> pluginObjects( TQObject *parent );
+
+protected:
+    /**
+     * Look for plugins in the @p instance's "data" directory (+"/kpartplugins")
+     *
+     * @return A list of TQDomDocument s, containing the parsed xml documents returned by plugins.
+     */
+    static TQValueList<Plugin::PluginInfo> pluginInfos( const TDEInstance * instance );
+
+    /**
+     * @internal
+     * @return The plugin created from the library @p libname
+     */
+    static Plugin* loadPlugin( TQObject * parent, const char* libname );
+
+    virtual void setInstance( TDEInstance *instance );
+
+private:
+    static bool hasPlugin( TQObject* parent, const TQString& library );
+    class PluginPrivate;
+    PluginPrivate *d;
+};
+
+}
+
+#endif