--- /dev/null
+<protocol name="gtk">
+
+ <interface name="gtk_shell" version="1">
+ <enum name="capability">
+ <entry name="global_app_menu" value="1"/>
+ <entry name="global_menu_bar" value="2"/>
+ <entry name="desktop_icons" value="3"/>
+ </enum>
+
+ <event name="capabilities">
+ <arg name="capabilities" type="uint"/>
+ </event>
+
+ <request name="get_gtk_surface">
+ <arg name="gtk_surface" type="new_id" interface="gtk_surface"/>
+ <arg name="surface" type="object" interface="wl_surface"/>
+ </request>
+ </interface>
+
+ <interface name="gtk_surface" version="1">
+ <request name="set_dbus_properties">
+ <arg name="application_id" type="string" allow-null="true"/>
+ <arg name="app_menu_path" type="string" allow-null="true"/>
+ <arg name="menubar_path" type="string" allow-null="true"/>
+ <arg name="window_object_path" type="string" allow-null="true"/>
+ <arg name="application_object_path" type="string" allow-null="true"/>
+ <arg name="unique_bus_name" type="string" allow-null="true"/>
+ </request>
+ </interface>
+
+</protocol>