indexingqueue.h

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/*
    <one line to give the library's name and an idea of what it does.>
    Copyright (C) 2012  Vishesh Handa <me@vhanda.in>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/


#ifndef FILEINDEXER_INDEXINGQUEUE_H
#define FILEINDEXER_INDEXINGQUEUE_H

#include <QtCore/QObject>
#include <QtCore/QQueue>
#include <QtCore/QDirIterator>
#include <QtCore/QUrl>

namespace Nepomuk2 {

    class IndexingQueue : public QObject
    {
        Q_OBJECT
    public:
        explicit IndexingQueue(QObject* parent = 0);

        virtual bool isEmpty() = 0;

        virtual void fillQueue();

        void setDelay( int msec );

    public slots:
        void suspend();
        void resume();

    signals:
        void startedIndexing();

        void finishedIndexing();

    protected:
        virtual void processNextIteration() = 0;

    protected slots:
        void finishIteration();

        void callForNextIteration();

    private slots:
        void processNext();

    private:
        bool m_suspended;
        bool m_sentEvent;
        int m_delay;
    };

}


#endif // FILEINDEXER_INDEXINGQUEUE_H