new class for controlling navigation in LibraryWindow (NavigationController), code refactoring

YACReaderLibrary/yacreader_navigation_controller.h

@@ -0,0 +1,40 @@
+#ifndef YACREADER_NAVIGATION_CONTROLLER_H
+#define YACREADER_NAVIGATION_CONTROLLER_H
+
+#include <QObject>
+class LibraryWindow;
+
+
+class YACReaderNavigationController : public QObject
+{
+    Q_OBJECT
+public:
+
+    explicit YACReaderNavigationController(LibraryWindow * parent);
+
+signals:
+
+public slots:
+    //info origins
+    //folders view
+    void selectedFolder(const QModelIndex & mi);
+    //reading lists
+    void selectedList(const QModelIndex & mi);
+    //history navigation
+    void selectedIndexFromHistory(const QModelIndex & mi);
+    //empty subfolder
+    void selectSubfolder(const QModelIndex &sourceMI, int child);
+
+    void loadFolderInfo(const QModelIndex & modelIndex);
+    void loadPreviousStatus();
+
+private:
+
+    void setupConnections();
+    LibraryWindow * libraryWindow;
+
+    //convenience methods
+    qulonglong folderModelIndexToID(const QModelIndex & mi);
+};
+
+#endif // YACREADER_NAVIGATION_CONTROLLER_H