Asking for confirmation when closing the project

Refactored confirmation when closing the app.

src/GUI/MainWindow.cpp

@@ -421,31 +421,10 @@ void MainWindow::on_actionProject_Preferences_triggered()
 
 void    MainWindow::closeEvent( QCloseEvent* e )
 {
-    if ( ProjectManager::getInstance()->needSave() == true )
-    {
-        QMessageBox msgBox;
-        msgBox.setText( tr( "The project has been modified." ) );
-        msgBox.setInformativeText( tr( "Do you want to save it ?" ) );
-        msgBox.setStandardButtons( QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel );
-        msgBox.setDefaultButton(QMessageBox::Save);
-        int     ret = msgBox.exec();
-
-        switch ( ret )
-        {
-            case QMessageBox::Save:
-                ProjectManager::getInstance()->saveProject();
-                break ;
-            case QMessageBox::Discard:
-                break ;
-            case QMessageBox::Cancel:
-            default:
-                e->ignore();
-                return ;
-            e->accept();
-        }
-    }
-    else
+    if ( ProjectManager::getInstance()->askForSaveIfModified() )
         e->accept();
+    else
+        e->ignore();
 }
 
 void    MainWindow::projectChanged( const QString& projectName, bool savedStatus )

src/Project/ProjectManager.cpp

@@ -23,6 +23,7 @@
 #include <QFileDialog>
 #include <QtDebug>
 #include <QSettings>
+#include <QMessageBox>
 
 #include "ProjectManager.h"
 #include "Library.h"
@@ -167,6 +168,8 @@ void    ProjectManager::saveProject( bool saveAs /*= true*/ )
 
 void    ProjectManager::closeProject()
 {
+    if ( askForSaveIfModified() == false )
+        return ;
     if ( m_projectFile != NULL )
     {
         delete m_projectFile;
@@ -174,3 +177,29 @@ void    ProjectManager::closeProject()
     }
     emit projectClosed();
 }
+
+bool    ProjectManager::askForSaveIfModified()
+{
+    if ( m_needSave == true )
+    {
+        QMessageBox msgBox;
+        msgBox.setText( tr( "The project has been modified." ) );
+        msgBox.setInformativeText( tr( "Do you want to save it ?" ) );
+        msgBox.setStandardButtons( QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel );
+        msgBox.setDefaultButton(QMessageBox::Save);
+        int     ret = msgBox.exec();
+
+        switch ( ret )
+        {
+            case QMessageBox::Save:
+                saveProject();
+                break ;
+            case QMessageBox::Discard:
+                break ;
+            case QMessageBox::Cancel:
+            default:
+                return false ;
+        }
+    }
+    return true;
+}

src/Project/ProjectManager.h

@@ -41,6 +41,7 @@ public:
     bool            needSave() const;
     QStringList     recentsProjects() const;
     void            closeProject();
+    bool            askForSaveIfModified();
 
 private:
     ProjectManager();