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downloader.h

Go to the documentation of this file.

#ifndef _DOWNLOADER_H
#define _DOWNLOADER_H

#include <kurl.h>
#include <qobject.h>
#include <qptrlist.h>

class QFile;
class QTimer;
class Downloader;


namespace KIO
{
        class TransferJob;
        class Job;
}

class DownloadItem
{
        friend class Downloader;
public:
        DownloadItem();
        virtual ~DownloadItem();
        
        bool isDownloaded() const;

        QString localFilename() const;

        virtual void setLocalFilename(const QString &filename);

        virtual void downloadFinished();
        virtual void downloaded(int percent);
        virtual void downloadTimeout();
        bool enqueue(const KURL &url);
        void dequeue();

private:
        QString mLocalFilename;
};

class Downloader : public QObject
{
Q_OBJECT
        struct QueueItem
        {
                DownloadItem *notifier;
                KURL file;
                QString local;
        };

public:
        Downloader(QObject *parent=0);
        virtual ~Downloader();


public slots:
        QString enqueue(DownloadItem *notifier, const KURL &file);
        void dequeue(DownloadItem *notifier);

        void start();

signals:
        void enqueued(DownloadItem *notifier, const KURL &file);
        void dequeued(DownloadItem *notifier);
        
private slots:
        void getNext();
        
        void data( KIO::Job *, const QByteArray &data);
        void percent( KIO::Job *, unsigned long percent);
        void jobDone( KIO::Job *);
        void giveUpWithThisDownloadServerIsRunningNT();
        
private:
        QPtrList<Downloader::QueueItem> mQueue;
        QPtrList<Downloader::QueueItem> *mUnstartedQueue;
        QFile *localfile;
        Downloader::QueueItem *current; 
        KIO::TransferJob *mJob;
        QTimer *mTimeout;
        bool mStarted;
};

#endif

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