Added possibility to modify menus at runtime

src/juci.cc

@@ -80,16 +80,12 @@ void Application::on_startup() {
   
   Menu::get().build();
 
-  auto object = Menu::get().builder->get_object("juci-menu");
+  if (!Menu::get().juci_menu || !Menu::get().window_menu) {
-  auto juci_menu = Glib::RefPtr<Gio::Menu>::cast_dynamic(object);
-  object = Menu::get().builder->get_object("window-menu");
-  auto window_menu = Glib::RefPtr<Gio::Menu>::cast_dynamic(object);
-  if (!juci_menu || !window_menu) {
     std::cerr << "Menu not found." << std::endl;
   }
   else {
-    set_app_menu(juci_menu);
+    set_app_menu(Menu::get().juci_menu);
-    set_menubar(window_menu);
+    set_menubar(Menu::get().window_menu);
   }
 }
 

src/menu.cc

@@ -404,6 +404,10 @@ void Menu::build() {
   
   try {
     builder->add_from_string(ui_xml);
+    auto object = Menu::get().builder->get_object("juci-menu");
+    juci_menu = Glib::RefPtr<Gio::Menu>::cast_dynamic(object);
+    object = Menu::get().builder->get_object("window-menu");
+    window_menu = Glib::RefPtr<Gio::Menu>::cast_dynamic(object);
   }
   catch (const Glib::Error &ex) {
     std::cerr << "building menu failed: " << ex.what();

src/menu.h

@@ -19,8 +19,12 @@ public:
   void set_keys();
   
   void build();
-  Glib::RefPtr<Gtk::Builder> builder;
   
+  Glib::RefPtr<Gio::Menu> juci_menu;
+  Glib::RefPtr<Gio::Menu> window_menu;
+  
+private:
+  Glib::RefPtr<Gtk::Builder> builder;
   std::string ui_xml;
 };
 #endif  // JUCI_MENU_H_