add tray icons

include/services/tray.hpp

@@ -1,7 +1,9 @@
 #pragma once
 
 #include <gdkmm/memorytexture.h>
+#include <giomm/actiongroup.h>
 #include <giomm/dbusconnection.h>
+#include <giomm/menumodel.h>
 #include <giomm/init.h>
 #include <glibmm/bytes.h>
 #include <glibmm/refptr.h>
@@ -10,6 +12,7 @@
 #include <gio/gio.h>
 #include <map>
 #include <memory>
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -42,6 +45,21 @@ class TrayService
     void secondaryActivate(const std::string &id, int32_t x, int32_t y);
     void contextMenu(const std::string &id, int32_t x, int32_t y);
 
+    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;
+      bool enabled = true;
+      bool visible = true;
+      bool separator = false;
+      std::vector<MenuNode> children;
+    };
+    std::optional<MenuNode> get_menu_layout(const std::string &id);
+    bool activate_menu_item(const std::string &id, int itemId);
+
     sigc::signal<void(const Item &)> &signal_item_added();
     sigc::signal<void(const std::string &)> &signal_item_removed();
     sigc::signal<void(const Item &)> &signal_item_updated();
@@ -52,6 +70,8 @@ class TrayService
         Item publicData;
         guint signalSubscriptionId = 0;
         guint ownerWatchId = 0;
+      Glib::RefPtr<Gio::MenuModel> menuModel;
+      Glib::RefPtr<Gio::ActionGroup> menuActions;
     };
 
     Glib::RefPtr<Gio::DBus::Connection> m_connection;