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