Index: sources/applicationcontroller.cpp
===================================================================
diff -u -r5194f3afffb28dac90a7ca4153b6a0ca2f239387 -r9a3ee027dbc33f39ee7df2a9dc5a7897c6b1854d
--- sources/applicationcontroller.cpp	(.../applicationcontroller.cpp)	(revision 5194f3afffb28dac90a7ca4153b6a0ca2f239387)
+++ sources/applicationcontroller.cpp	(.../applicationcontroller.cpp)	(revision 9a3ee027dbc33f39ee7df2a9dc5a7897c6b1854d)
@@ -14,48 +14,111 @@
 #include "applicationcontroller.h"
 
 // Qt
-#include <QCoreApplication>
 
 // Project
+#include "guiglobals.h"
+#include "guicontroller.h"
+#include "messagehandler.h"
 
-ApplicationController *ApplicationController::_instance = nullptr;
+// Singleton
+SINGLETON_INIT(ApplicationController)
+
+/*!
+ * \brief ApplicationController::ApplicationController
+ * \param parent
+ */
 ApplicationController::ApplicationController(QObject *parent) : QObject(parent)
 {
-    _guiController   =     Gui::GuiController::I();
     _fileHandler     = new Storage::FileHandler (this);
     _applicationPost = new ApplicationPost(this);
-    connect(_guiController,&GuiController::initialized,this, &ApplicationController::UiInitialized);
+
 }
 
-bool ApplicationController::event(QEvent *event)
+/*!
+ * \brief ApplicationController initializer
+ */
+bool ApplicationController::init()
 {
-    return QObject::event(event);
+    if (!_fileHandler    ->init()) return false;
+    if (!_applicationPost->init()) return false;
+    connection();
+    return true;
 }
 
-ApplicationController *ApplicationController::I()
+/*!
+ * \brief GUI Controller connections definition
+ */
+void ApplicationController::connection()
 {
-    if (!_instance) {
-        _instance = new ApplicationController();
-    }
-    return _instance;
+    // From GUI
+    connect(_GuiController , SIGNAL(didActionRequest(GuiActionType)),
+            this           ,   SLOT( onActionRequest(GuiActionType)));
+    // From GUI
+    connect(_GuiController , SIGNAL(didActionPerform(GuiActionType,GuiActionInfo)),
+            this           ,   SLOT( onActionPerform(GuiActionType, GuiActionInfo)));
+
+    // From HD/DG
+    connect(_MessageHandler, SIGNAL(didActionCommand(GuiActionType)),
+            this           ,   SLOT( onActionCommand(GuiActionType)));
+    // From HD/DG
+    connect(_MessageHandler, SIGNAL(didActionConfirm(GuiActionType,GuiActionInfo)),
+            this           ,   SLOT( onActionConfirm(GuiActionType, GuiActionInfo)));
 }
 
-bool ApplicationController::init()
+
+/*!
+ * \brief Process the requested action
+ * \details Processes the requested action
+ * \param vAction - User requested Action
+ */
+void ApplicationController::onActionRequest(GuiActionType vAction)
 {
-    if (!_fileHandler    ->init()) return false;
-    if (!_applicationPost->init()) return false;
-    _guiController->init();
-    return true;
+    qDebug() << "ApplicationController.actionRequested : " << vAction;
+    // Process the requested action by GUI
+    // Process ...
+    emit didActionRequest(vAction);
 }
 
-void ApplicationController::UiInitialized(bool ok)
+/*!
+ * \brief Process the performed action
+ * \details An action which has been commanded by HD has been performed by GUI.\n
+ * GUI notifies that the action has been performed
+ * \param vAction
+ * \param vInfo
+ */
+void ApplicationController::onActionPerform(GuiActionType vAction, GuiActionInfo vInfo)
 {
-    if(ok) {
-        if(_applicationPost->init()) {
-            _applicationPost->start();
-        }
-    }
-    else {
-        quit(-1);
-    }
+    qDebug() << "ApplicationController.actionPerformed : " << vAction << vInfo;
+    // Process the performed action by GUI
+    // Process ...
+    emit didActionPerform(vAction, vInfo);
 }
+
+/*!
+ * \brief Action commanded by HD
+ * \details An action has been commanded by HD,
+ * GUI requires to be notified to perform the action.
+ * \param vAction
+ */
+void ApplicationController::onActionCommand(GuiActionType vAction)
+{
+    qDebug() << "ApplicationController.actionCommanded : " << vAction;
+    // Process the command and notify GUI Controller
+    // Process ...
+    emit didActionCommand(vAction);
+}
+
+/*!
+ * \brief An action has been confirmed
+ * \details GUI requested an action.
+ * In response HD confirmed the action.
+ * \param vAction
+ * \param vInfo
+ */
+void ApplicationController::onActionConfirm(GuiActionType vAction, GuiActionInfo vInfo)
+{
+    qDebug() << "ApplicationController.actionConfirmed : " << vAction;
+    // Process the command and notify GUI Controller
+    // Process ...
+    emit didActionConfirm(vAction, vInfo);
+}