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#ifndef _DOWNLOADER_H
#define _DOWNLOADER_H
#include <kurl.h>
#include <tqobject.h>
#include <tqptrlist.h>
class TQFile;
class TQTimer;
class Downloader;
namespace KIO
{
class TransferJob;
class Job;
}
/**
* Item to download, usually queued up in Downloader
**/
class DownloadItem
{
friend class Downloader;
public:
DownloadItem();
virtual ~DownloadItem();
bool isDownloaded() const;
/**
* @return the local filename this item will be saved to
**/
TQString localFilename() const;
virtual void setLocalFilename(const TQString &filename);
/**
* Called if this item has been fully downloaded
**/
virtual void downloadFinished();
/**
* Called at regular intervals while downloading this item
**/
virtual void downloaded(int percent);
/**
* Called when downloading this item timed out
**/
virtual void downloadTimeout();
/**
* @return true if the download was scheduled, false if the file is local
**/
bool enqueue(const KURL &url);
/**
* Remove this item from Downloader queue
**/
void dequeue();
private:
TQString mLocalFilename;
};
/**
* download playlistitems, in a queue based fasion
**/
class Downloader : public TQObject
{
Q_OBJECT
TQ_OBJECT
struct QueueItem
{
DownloadItem *notifier;
KURL file;
TQString local;
};
public:
Downloader(TQObject *tqparent=0);
virtual ~Downloader();
public slots:
TQString enqueue(DownloadItem *notifier, const KURL &file);
void dequeue(DownloadItem *notifier);
/**
* @internal
**/
void start();
signals:
/**
* Emitted when a new DownloadItem was added to the queue
* @p notifier is the added item
**/
void enqueued(DownloadItem *notifier, const KURL &file);
/**
* Emitted when a DownloadItem was removed from the queue
* @p notifier is the removed item
**/
void dequeued(DownloadItem *notifier);
private slots:
void getNext();
void data( KIO::Job *, const TQByteArray &data);
void percent( KIO::Job *, unsigned long percent);
void jobDone( KIO::Job *);
void giveUpWithThisDownloadServerIsRunningNT();
private:
TQPtrList<Downloader::QueueItem> mQueue;
TQPtrList<Downloader::QueueItem> *mUnstartedQueue;
TQFile *localfile;
Downloader::QueueItem *current;
KIO::TransferJob *mJob;
TQTimer *mTimeout;
bool mStarted;
};
#endif
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