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    41 

    42 #ifndef DOWNLOADMANAGER_H

    43 #define DOWNLOADMANAGER_H

    44 

    45 #include "ui_downloads.h"

    46 #include "ui_downloaditem.h"

    47 

    48 #include <QtNetwork/QNetworkReply>

    49 

    50 #include <QtCore/QFile>

    51 #include <QtCore/QTime>

    52 

    53 class DownloadItem : public QWidget, public Ui_DownloadItem

    54 {

    55     Q_OBJECT

    56 

    57 signals:

    58     void statusChanged();

    59 

    60 public:

    61     DownloadItem(QNetworkReply *reply = 0, bool requestFileName = false, QWidget *parent = 0);

    62     bool downloading() const;

    63     bool downloadedSuccessfully() const;

    64 

    65     QUrl m_url;

    66 

    67     QFile m_output;

    68     QNetworkReply *m_reply;

    69 

    70 private slots:

    71     void stop();

    72     void tryAgain();

    73     void open();

    74 

    75     void downloadReadyRead();

    76     void error(QNetworkReply::NetworkError code);

    77     void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);

    78     void metaDataChanged();

    79     void finished();

    80 

    81 private:

    82     void getFileName();

    83     void init();

    84     void updateInfoLabel();

    85     QString dataString(int size) const;

    86 

    87     QString saveFileName(const QString &directory) const;

    88 

    89     bool m_requestFileName;

    90     qint64 m_bytesReceived;

    91     QTime m_downloadTime;

    92 };

    93 

    94 class AutoSaver;

    95 class DownloadModel;

    96 QT_BEGIN_NAMESPACE

    97 class QFileIconProvider;

    98 QT_END_NAMESPACE

    99 

   100 class DownloadManager : public QDialog, public Ui_DownloadDialog

   101 {

   102     Q_OBJECT

   103     Q_PROPERTY(RemovePolicy removePolicy READ removePolicy WRITE setRemovePolicy)

   104     Q_ENUMS(RemovePolicy)

   105 

   106 public:

   107     enum RemovePolicy {

   108         Never,

   109         Exit,

   110         SuccessFullDownload

   111     };

   112 

   113     DownloadManager(QWidget *parent = 0);

   114     ~DownloadManager();

   115     int activeDownloads() const;

   116 

   117     RemovePolicy removePolicy() const;

   118     void setRemovePolicy(RemovePolicy policy);

   119 

   120 public slots:

   121     void download(const QNetworkRequest &request, bool requestFileName = false);

   122     inline void download(const QUrl &url, bool requestFileName = false)

   123         { download(QNetworkRequest(url), requestFileName); }

   124     void handleUnsupportedContent(QNetworkReply *reply, bool requestFileName = false);

   125     void cleanup();

   126 

   127 private slots:

   128     void save() const;

   129     void updateRow();

   130 

   131 private:

   132     void addItem(DownloadItem *item);

   133     void updateItemCount();

   134     void load();

   135 

   136     AutoSaver *m_autoSaver;

   137     DownloadModel *m_model;

   138     QNetworkAccessManager *m_manager;

   139     QFileIconProvider *m_iconProvider;

   140     QList<DownloadItem*> m_downloads;

   141     RemovePolicy m_removePolicy;

   142     friend class DownloadModel;

   143 };

   144 

   145 class DownloadModel : public QAbstractListModel

   146 {

   147     friend class DownloadManager;

   148     Q_OBJECT

   149 

   150 public:

   151     DownloadModel(DownloadManager *downloadManager, QObject *parent = 0);

   152     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;

   153     int rowCount(const QModelIndex &parent = QModelIndex()) const;

   154     bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());

   155 

   156 private:

   157     DownloadManager *m_downloadManager;

   158 

   159 };

   160 

   161 #endif // DOWNLOADMANAGER_H

   162