downloadmanager.h
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the demonstration applications of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
- ** to ensure GNU General Public Licensing requirements will be met:
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- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
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- #ifndef DOWNLOADMANAGER_H
- #define DOWNLOADMANAGER_H
- #include "ui_downloads.h"
- #include "ui_downloaditem.h"
- #include <QtNetwork/QNetworkReply>
- #include <QtCore/QFile>
- #include <QtCore/QTime>
- class DownloadItem : public QWidget, public Ui_DownloadItem
- {
- Q_OBJECT
- signals:
- void statusChanged();
- public:
- DownloadItem(QNetworkReply *reply = 0, bool requestFileName = false, QWidget *parent = 0);
- bool downloading() const;
- bool downloadedSuccessfully() const;
- QUrl m_url;
- 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;
- bool m_requestFileName;
- qint64 m_bytesReceived;
- QTime m_downloadTime;
- };
- class AutoSaver;
- class DownloadModel;
- QT_BEGIN_NAMESPACE
- class QFileIconProvider;
- QT_END_NAMESPACE
- class DownloadManager : public QDialog, public Ui_DownloadDialog
- {
- Q_OBJECT
- Q_PROPERTY(RemovePolicy removePolicy READ removePolicy WRITE setRemovePolicy)
- Q_ENUMS(RemovePolicy)
- public:
- enum RemovePolicy {
- Never,
- Exit,
- SuccessFullDownload
- };
- DownloadManager(QWidget *parent = 0);
- ~DownloadManager();
- int activeDownloads() const;
- RemovePolicy removePolicy() const;
- void setRemovePolicy(RemovePolicy policy);
- public slots:
- void download(const QNetworkRequest &request, bool requestFileName = false);
- inline void download(const QUrl &url, bool requestFileName = false)
- { download(QNetworkRequest(url), requestFileName); }
- void handleUnsupportedContent(QNetworkReply *reply, bool requestFileName = false);
- void cleanup();
- private slots:
- void save() const;
- void updateRow();
- private:
- void addItem(DownloadItem *item);
- void updateItemCount();
- void load();
- AutoSaver *m_autoSaver;
- DownloadModel *m_model;
- QNetworkAccessManager *m_manager;
- QFileIconProvider *m_iconProvider;
- QList<DownloadItem*> m_downloads;
- RemovePolicy m_removePolicy;
- friend class DownloadModel;
- };
- class DownloadModel : public QAbstractListModel
- {
- friend class DownloadManager;
- Q_OBJECT
- public:
- DownloadModel(DownloadManager *downloadManager, 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_downloadManager;
- };
- #endif // DOWNLOADMANAGER_H