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# downloadmanager.h Example File
demos/browser/downloadmanager.h

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     #ifndef DOWNLOADMANAGER_H
     #define DOWNLOADMANAGER_H

     #include "ui_downloads.h"
     #include "ui_downloaditem.h"

     #include <QtNetwork/QNetworkReply>
     #include <QtNetwork/QSslError>

     #include <QtCore/QFile>
     #include <QtCore/QTime>

     class DownloadItem : public QWidget, public Ui_DownloadItem
     {
         Q_OBJECT

     signals:
         void statusChanged();

     public:
         DownloadItem(QNetworkReply *reply = 0, QWidget *parent = 0);
         bool downloadedSuccessfully() const;

         QUrl m_url;
         QNetworkAccessManager *m_manager;

         QFile m_output;
         QNetworkReply *m_reply;

     private slots:
         void stop();
         void tryAgain();
         void open();

         void downloadReadyRead();
         void error(QNetworkReply::NetworkError code);
         void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);
         void metaDataChanged();
         void finished();

     private:
         void getFileName();
         void init();
         void updateInfoLabel();
         QString dataString(int size) const;

         QString saveFileName(const QString &directory) const;

         qint64 m_bytesReceived;
         QTime m_downloadTime;
     };

     class AutoSave;
     class DownloadModel;
     QT_BEGIN_NAMESPACE
     class QFileIconProvider;
     QT_END_NAMESPACE

     class DownloadManager : public QDialog, public Ui_DownloadDialog {
         Q_OBJECT
         friend class DownloadModel;
         Q_PROPERTY(RemovePolicy removePolicy READ removePolicy WRITE setRemovePolicy)
         Q_ENUMS(RemovePolicy)

     public:
         enum RemovePolicy {
             Never,
             Exit,
             SuccessFullDownload
         };

         DownloadManager(QNetworkAccessManager *manager, QWidget *parent = 0);
         ~DownloadManager();
         int activeDownloads() const;

         RemovePolicy removePolicy() const;
         void setRemovePolicy(RemovePolicy policy);

     public slots:
         void download(const QNetworkRequest &request);
         inline void download(const QUrl &url)
             { download(QNetworkRequest(url)); }
         void handleUnsupportedContent(QNetworkReply *reply);
         void cleanup();

     private slots:
         void save() const;
         void updateRow();

     private:
         void addItem(DownloadItem *item);
         void updateItemCount();
         void load();

         AutoSave *m_autoSave;
         DownloadModel *m_model;
         QNetworkAccessManager *m_manager;
         QFileIconProvider *m_iconProvider;
         QList<DownloadItem*> m_downloads;
         RemovePolicy m_removePolicy;
     };

     class DownloadModel : public QAbstractListModel
     {
         friend class DownloadManager;
         Q_OBJECT

     public:
         DownloadModel(DownloadManager *dm, QObject *parent = 0);
         QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
         int rowCount(const QModelIndex &parent = QModelIndex()) const;
         bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());

     private:
         DownloadManager *m_dm;

     };

     #endif // DOWNLOADMANAGER_H