refactor and shizz

include/services/tray.hpp

@@ -16,6 +16,7 @@
 #include <vector>
 
 class TrayService {
+    inline static TrayService *instance = nullptr;
   public:
     struct Item {
         std::string id;
@@ -29,9 +30,6 @@ class TrayService {
         Glib::RefPtr<Gdk::Paintable> iconPaintable;
     };
 
-    TrayService();
-    ~TrayService();
-
     void start();
     void stop();
 
@@ -44,7 +42,6 @@ class TrayService {
 
     Glib::RefPtr<Gio::MenuModel> get_menu_model(const std::string &id);
     Glib::RefPtr<Gio::ActionGroup> get_menu_action_group(const std::string &id);
-    void debug_dump_menu_layout(const std::string &id);
     struct MenuNode {
         int id = 0;
         std::string label;
@@ -60,7 +57,18 @@ class TrayService {
     sigc::signal<void(const std::string &)> &signal_item_removed();
     sigc::signal<void(const Item &)> &signal_item_updated();
 
+    static TrayService *getInstance() {
+        if (TrayService::instance == nullptr) {
+            TrayService::instance = new TrayService();
+        }
+        
+        return TrayService::instance;
+    }
+
   private:
+    TrayService();
+    ~TrayService();
+
     struct TrackedItem {
         Item publicData;
         guint signalSubscriptionId = 0;