Integrated file selection dialogue with the main code. Improved the

[openvpnui.git] / src / filebrowse / filemodel.h

diff --git a/src/filebrowse/filemodel.h b/src/filebrowse/filemodel.h
new file mode 100644 (file)
index 0000000..0704d14
--- /dev/null
+++ b/src/filebrowse/filemodel.h
@@ -0,0 +1,90 @@
+#ifndef FILEMODEL_H
+#define FILEMODEL_H
+
+#include <QAbstractListModel>
+#include <QDir>
+#include <QFileSystemWatcher>
+
+// struct to hold data for a single file
+struct FileData
+{
+    QFileInfo info;
+
+    bool operator==(const FileData &other) const {
+        return other.info == info;
+    }
+};
+
+/**
+ * @brief The FileModel class can be used as a model in a ListView to display a list of files
+ * in the current directory. It has methods to change the current directory and to access
+ * file info.
+ * It also actively monitors the directory. If the directory changes, then the model is
+ * updated automatically if active is true. If active is false, then the directory is
+ * updated when active becomes true.
+ */
+class FileModel : public QAbstractListModel
+{
+    Q_OBJECT
+    Q_PROPERTY(QString dir READ dir() WRITE setDir(QString) NOTIFY dirChanged())
+    Q_PROPERTY(int fileCount READ fileCount() NOTIFY fileCountChanged())
+    Q_PROPERTY(QString errorMessage READ errorMessage() NOTIFY errorMessageChanged())
+    Q_PROPERTY(bool active READ active() WRITE setActive() NOTIFY activeChanged())
+    Q_PROPERTY(bool showAll READ showAll() WRITE setShowAll() NOTIFY showAllChanged())
+
+public:
+    explicit FileModel(QObject *parent = 0);
+    ~FileModel();
+
+    // methods needed by ListView
+    int rowCount(const QModelIndex &parent = QModelIndex()) const;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+    QHash<int, QByteArray> roleNames() const;
+
+    // property accessors
+    QString dir() const { return m_dir; }
+    void setDir(QString dir);
+    int fileCount() const;
+    QString errorMessage() const;
+    bool active() const { return m_active; }
+    void setActive(bool active);
+    bool showAll() const { return m_showAll; }
+    void setShowAll(bool showAll);
+
+    // methods accessible from QML
+    Q_INVOKABLE QString appendPath(QString dirName);
+    Q_INVOKABLE QString parentPath();
+    Q_INVOKABLE QString fileNameAt(int fileIndex);
+
+public slots:
+    // reads the directory and inserts/removes model items as needed
+    Q_INVOKABLE void refresh();
+    // reads the directory and sets all model items
+    Q_INVOKABLE void refreshFull();
+
+signals:
+    void dirChanged();
+    void fileCountChanged();
+    void errorMessageChanged();
+    void activeChanged();
+    void showAllChanged();
+
+private slots:
+    void readDirectory();
+
+private:
+    void readEntries();
+    void refreshEntries();
+
+    QString m_dir;
+    QList<FileData> m_files;
+    QString m_errorMessage;
+    bool m_active;
+    bool m_dirty;
+    QFileSystemWatcher *m_watcher;
+    bool m_showAll;
+};
+
+
+
+#endif // FILEMODEL_H