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-/* This file is part of the KDE project
- Copyright (C) 2001 Carsten Pfeiffer <pfeiffer@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 KHISTORYPROVIDER_H
-#define KHISTORYPROVIDER_H
-
-#include <tqdict.h>
-#include <tqobject.h>
-
-#include <tdelibs_export.h>
-
-namespace KParts {
-
-/**
- * Basic class to manage a history of "items". This class is only meant
- * for fast lookup, if an item is in the history or not.
- *
- * May be subclassed to implement a persistent history for example.
- * For usage with khtml, just create your provider and call the
- * HistoryProvider constructor _before_ you do any khtml stuff. That way,
- * khtml, using the self()-method, will use your subclassed provider.
- *
- * @author Carsten Pfeiffer <pfeiffer@kde.org>
- */
-class KPARTS_EXPORT HistoryProvider : public TQObject
-{
- Q_OBJECT
-
-public:
- static HistoryProvider * self();
-
- /**
- * Creates a KHistoryProvider with an optional parent and name
- */
- HistoryProvider( TQObject *parent = 0L, const char *name = 0 );
-
- /**
- * Destroys the provider.
- */
- virtual ~HistoryProvider();
-
- /**
- * @returns true if @p item is present in the history.
- */
- virtual bool contains( const TQString& item ) const;
-
- /**
- * Inserts @p item into the history.
- */
- virtual void insert( const TQString& item );
-
- /**
- * Removes @p item from the history.
- */
- virtual void remove( const TQString& item );
-
- /**
- * Clears the history. The cleared() signal is emitted after clearing.
- */
- virtual void clear();
-
-signals:
- /**
- * Emitted after the history has been cleared.
- */
- void cleared();
-
- /**
- * This signal is never emitted from this class, it is only meant as an
- * interface for subclasses. Emit this signal to notify others that the
- * history has changed. Put those items that were added or removed from the
- * history into @p items.
- */
- void updated( const TQStringList& items );
-
- /**
- * Emitted after the item has been inserted
- */
- void inserted( const TQString& item );
-
-private:
- static HistoryProvider *s_self;
-
-protected:
- virtual void virtual_hook( int id, void* data );
-private:
- class HistoryProviderPrivate;
- HistoryProviderPrivate *d;
-};
-
-}
-
-#endif // KHISTORYPROVIDER_H