Downloader.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <QDir>
#include <QDialog>
#include <ui_Downloader.h>
 
namespace Ui
{
class Downloader;
}
 
class QNetworkReply;
class QNetworkAccessManager;
 
class Downloader : public QWidget
{
   Q_OBJECT
 
signals:
   void downloadFinished(const QString &url, const QString &filepath);
 
public:
   explicit Downloader(QWidget *parent = nullptr);
   ~Downloader();
 
   bool useCustomInstallProcedures() const;
 
   QString downloadDir() const;
   void setDownloadDir(const QString &downloadDir);
 
public slots:
   void setUrlId(const QString &url);
   void startDownload(const QUrl &url);
   void setFileName(const QString &file);
   void setUserAgentString(const QString &agent);
   void setUseCustomInstallProcedures(const bool custom);
   void setMandatoryUpdate(const bool mandatory_update);
 
private slots:
   void finished();
   void openDownload();
   void installUpdate();
   void cancelDownload();
   void saveFile(qint64 received, qint64 total);
   void calculateSizes(qint64 received, qint64 total);
   void updateProgress(qint64 received, qint64 total);
   void calculateTimeRemaining(qint64 received, qint64 total);
 
private:
   qreal round(const qreal &input);
 
private:
   QString m_url;
   uint m_startTime;
   QDir m_downloadDir;
   QString m_fileName;
   Ui::Downloader *m_ui;
   QNetworkReply *m_reply;
   QString m_userAgentString;
 
   bool m_useCustomProcedures;
   bool m_mandatoryUpdate;
 
   QNetworkAccessManager *m_manager;
};