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/*
# Copyright (c) 2010,2011 - RZ Uni Freiburg
# Copyright (c) 2010,2011 - OpenSLX Project
#
# This program/file is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your feedback to feedback@openslx.org
#
# General information about OpenSLX can be found under http://openslx.org
#
#
# Helper class managing downloads.
#
*/
#ifndef DOWNLOADMANAGER_H
#define DOWNLOADMANAGER_H
#include "fbgui.h"
extern bool debug;
extern QUrl baseURL;
extern QString binPath;
extern QString downloadPath;
extern int updateInterval;
class DownloadManager : public QObject
{
Q_OBJECT
public:
DownloadManager();
private:
// checks for valid download directory, ran once in constructor
void checkDownloadDirectory();
// private control function for queueing mechanism.
void processDownloadRequest(const QUrl& url);
// function to complete the kcl file
void completeKCL();
// base objects for downloading
QNetworkAccessManager* qnam;
QQueue<QUrl> dlQ;
QNetworkReply* currentDownload;
QFile outfile;
QDir downloadDir;
// download progress variables
QTime dltime;
int currentProgress, lastProgress;
// download in progress flag
bool dip;
// static counter
static int downloaded;
signals:
// notify sends a message to the javascript interface.
void notify(const QString& msg);
// downloadInfo sends static information (name, size) to the interface.
void downloadInfo(const QString& filename, const double& filesize);
// updateProgress sends download progress information to the interface.
void updateProgress(const int& percent, const double& speed, const QString& unit);
// signal emitted when download queue is empty.
void downloadQueueEmpty();
public slots:
// public slots to receive download requests.
void downloadFile(const QUrl& fileUrl);
void downloadFile(const QString& fileUrl);
private slots:
// private slots to manage the downloading process
void startNextDownload();
void processMetaInfo();
void downloadReady();
void downloadProgress(qint64 bytesIn, qint64 bytesTotal);
void downloadFinished();
};
#endif // DOWNLOADMANAGER_H
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