Index: sources/applicationcontroller.h
===================================================================
diff -u -r5194f3afffb28dac90a7ca4153b6a0ca2f239387 -r9a3ee027dbc33f39ee7df2a9dc5a7897c6b1854d
--- sources/applicationcontroller.h	(.../applicationcontroller.h)	(revision 5194f3afffb28dac90a7ca4153b6a0ca2f239387)
+++ sources/applicationcontroller.h	(.../applicationcontroller.h)	(revision 9a3ee027dbc33f39ee7df2a9dc5a7897c6b1854d)
@@ -18,36 +18,50 @@
 #include <QPointer>
 
 // Project
+#include "main.h"
+#include "guiactions.h"
 #include "filehandler.h"
 #include "applicationpost.h"
-#include "guicontroller.h"
+#include "canbus/caninterface.h"
+
+
+// define
+#define _ApplicationController ApplicationController::I()
+
+// namespace
 using namespace Storage;
 using namespace Gui;
+using namespace Can;
 
-
 class ApplicationController : public QObject
 {
     Q_OBJECT
 
-    static ApplicationController *_instance;
-    ApplicationPost *_applicationPost = nullptr;
-    FileHandler     *_fileHandler     = nullptr;
+    FileHandler     *_fileHandler       = nullptr;
+    ApplicationPost *_applicationPost   = nullptr;
 
-    QPointer<GuiController> _guiController;
+SINGLETON_DECL(ApplicationController)
+public:
+    bool init();
 
-    explicit ApplicationController(QObject *parent = nullptr);
+private:
+    void connection();
 
-    bool event(QEvent *event) override;
+private slots: // Should be private for thread safety and is connected internally.
+    void onActionRequest (GuiActionType vAction);                      // UI => HD/DG
+    void onActionConfirm (GuiActionType vAction, GuiActionInfo vInfo); // UI <= HD/DG
 
-public:
-    static ApplicationController *I();
-    bool init();
+    void onActionCommand (GuiActionType vAction);                      // UI <= HD/DG
+    void onActionPerform (GuiActionType vAction, GuiActionInfo vInfo); // UI => HD/DG
 
 signals:
-    void quit(int retcode=0);
+    void didActionRequest(GuiActionType vAction                     ); // UI => HD/DG
+    void didActionConfirm(GuiActionType vAction, GuiActionInfo vInfo); // UI <= HD/DG
 
-private slots:
-    void UiInitialized(bool ok);
+    void didActionCommand(GuiActionType vAction                     ); // UI <= HD/DG
+    void didActionPerform(GuiActionType vAction, GuiActionInfo vInfo); // UI => HD/DG
 
+    void quit(int retcode=0);
+
 };