HttpDownloadManager.h

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//
// This file is part of the Marble Virtual Globe.
//
// This program is free software licensed under the GNU LGPL. You can
// find a copy of this license in LICENSE.txt in the top directory of
// the source code.
//
// Copyright 2007      Torsten Rahn <tackat@kde.org>
// Copyright 2007      Inge Wallin  <ingwa@kde.org>
// Copyright 2009      Jens-Michael Hoffmann <jensmh@gmx.de>
//

//
// The HttpDownloadManager manages http downloads.
//

#ifndef MARBLE_HTTPDOWNLOADMANAGER_H
#define MARBLE_HTTPDOWNLOADMANAGER_H

#include <QObject>

#include "MarbleGlobal.h"
#include "marble_export.h"

class QUrl;

namespace Marble
{

class DownloadPolicy;
class DownloadQueueSet;
class StoragePolicy;

class MARBLE_EXPORT HttpDownloadManager : public QObject 
{
    Q_OBJECT

 public:
    explicit HttpDownloadManager( StoragePolicy *policy );

    virtual ~HttpDownloadManager();

    void setDownloadEnabled( const bool enable );
    void addDownloadPolicy( const DownloadPolicy& );

 public Q_SLOTS:

    void addJob( const QUrl& sourceUrl, const QString& destFilename, const QString &id,
                 const DownloadUsage usage );


 Q_SIGNALS:
    void downloadComplete( QString, QString );

    void downloadComplete( QByteArray data, QString initiatorId );

    void jobAdded();

    void jobRemoved();

    void progressChanged( int active, int queued );

 private Q_SLOTS:
    void finishJob( const QByteArray& data, const QString& destinationFileName,
            const QString& id );
    void requeue();
    void startRetryTimer();

 private:
    Q_DISABLE_COPY( HttpDownloadManager )

    void connectDefaultQueueSets();
    void connectQueueSet( DownloadQueueSet * );
    bool hasDownloadPolicy( const DownloadPolicy& policy ) const;
    class Private;
    Private * const d;
};

}

#endif // MARBLE_HTTPDOWNLOADMANAGER_H