Qt 5.8 | Qt WebEngine | WebEngine Demo Browser Example | downloadmanager.h Example File

Qt 5.8.0 Reference Documentation

# downloadmanager.h Example File

webenginewidgets/demobrowser/downloadmanager.h

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      #ifndef DOWNLOADMANAGER_H
      #define DOWNLOADMANAGER_H

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

      #include <QtCore/QFileInfo>
      #include <QtCore/QTime>
      #include <QtCore/QUrl>

      #include <QWebEngineDownloadItem>

      class DownloadManager;
      class DownloadWidget : public QWidget, public Ui_DownloadItem
      {
          Q_OBJECT

      signals:
          void statusChanged();

      public:
          DownloadWidget(QWebEngineDownloadItem *download, QWidget *parent = 0);
          bool downloading() const;
          bool downloadedSuccessfully() const;

          void init();
          bool getFileName(bool promptForFileName = false);

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

          void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);
          void finished();

      private:
          friend class DownloadManager;
          void updateInfoLabel();
          QString dataString(int size) const;

          QUrl m_url;
          QFileInfo m_file;
          qint64 m_bytesReceived;
          QTime m_downloadTime;
          bool m_stopped;

          QScopedPointer<QWebEngineDownloadItem> m_download;
      };

      class AutoSaver;
      class DownloadModel;
      class QFileIconProvider;

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

      public:
          enum RemovePolicy {
              Never,
              Exit,
              SuccessFullDownload
          };
          Q_ENUM(RemovePolicy)

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

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

      public slots:
          void download(QWebEngineDownloadItem *download);
          void cleanup();

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

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

          AutoSaver *m_autoSaver;
          DownloadModel *m_model;
          QFileIconProvider *m_iconProvider;
          QList<DownloadWidget*> 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