use YggdrasilService to control service state

data/ui/main.ui

@@ -17,9 +17,10 @@
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <child>
-          <object class="GtkSwitch" id="status_switch">
+          <object class="GtkSwitch" id="service_state_switch">
             <property name="visible">True</property>
             <property name="can_focus">True</property>
+            <signal name="state-set" handler="on_service_state_switch_state_set" swapped="no"/>
           </object>
           <packing>
             <property name="x">275</property>

src/app-window.vala

@@ -21,7 +21,7 @@ namespace Yggtk {
     public class AppWindow : ApplicationWindow {
 
         [GtkChild]
-        private Gtk.Switch status_switch;
+        private Gtk.Switch service_state_switch;
 
         [GtkChild]
         private Gtk.CheckButton portable_checkbutton;
@@ -32,27 +32,21 @@ namespace Yggtk {
         [GtkChild]
         private Gtk.Entry ip_entry;
 
+		[GtkCallback]
+		private bool on_service_state_switch_state_set (bool state) {
+			this.application.activate_action ("set-service-state", new Variant.boolean (state));
+			return true;
+		}
+
+		public void set_service_state (bool state) {
+			service_state_switch.set_state (state);
+		}
+
         public AppWindow (Gtk.Application application) {
 
             Object(application: application);
 
-            check_status (status_switch);
+            check_status (service_state_switch);
-
-            status_switch.notify["active"].connect (() => {
-
-                if (status_switch.get_active ()) {
-
-                    start ();
-
-                } else {
-
-                    stop ();
-
-                }
-
-                check_status (status_switch);
-
-            });
 
             ip_entry.notify["text"].connect (() => {
 
@@ -135,44 +129,6 @@ namespace Yggtk {
 
         }
 
-        int stop () {
-
-            try {
-
-                Process.spawn_command_line_sync ("pkexec rc-service yggdrasil stop");
-                Process.spawn_command_line_sync ("pkexec systemctl stop yggdrasil");
-
-            } catch (Error e) {
-
-                print ("Error stop Yggdrasil: %s\n", e.message);
-
-                return 1;
-
-            }
-
-            return 0;
-
-        }
-
-        int start () {
-
-            try {
-
-                Process.spawn_command_line_sync ("pkexec rc-service yggdrasil start");
-                Process.spawn_command_line_sync ("pkexec systemctl start yggdrasil");
-
-            } catch (Error e) {
-
-                print ("Error start Yggdrasil: %s\n", e.message);
-
-                return 1;
-
-            }
-
-            return 0;
-
-        }
-
         int parse (string yggconf, Entry ip) {
 
             try {

src/application.vala

@@ -21,6 +21,8 @@ namespace Yggtk {
 
 		private YggdrasilService yggdrasil_service = null;
 
+		private AppWindow window = null;
+
         public Application () {
             Object (
                 application_id: "org.yggtk.yggtk",
@@ -51,6 +53,38 @@ namespace Yggtk {
             SimpleAction update_yggdrasil_action = new SimpleAction ("update-yggdrasil", null);
             update_yggdrasil_action.activate.connect (update_yggdrasil);
             add_action (update_yggdrasil_action);
+
+			SimpleAction set_service_state_action = new SimpleAction ("set-service-state", VariantType.BOOLEAN);
+			set_service_state_action.activate.connect (set_service_state);
+			add_action (set_service_state_action);
+        }
+
+		private void set_service_state (SimpleAction action, Variant? state) {
+			try {
+				if (yggdrasil_service.get_status () == state.get_boolean ()) {
+					return;
+				}
+
+				if (state.get_boolean ()) {
+					yggdrasil_service.start ();
+				} else {
+					yggdrasil_service.stop ();
+				}
+
+				display_current_service_state ();
+			} catch (SpawnError e) {
+				stderr.printf ("Unable to change service state: %s\n", e.message);
+			}
+		}
+
+		private void display_current_service_state () {
+			try {
+				if (window != null) {
+					window.set_service_state (yggdrasil_service.get_status ());
+				}
+			} catch (SpawnError e) {
+				stderr.printf ("Unable to get service state: %s\n", e.message);
+			}
 		}
 
         private void update_yggtk () {
@@ -92,7 +126,10 @@ namespace Yggtk {
         }
 
         protected override void activate () {
-            AppWindow window = new AppWindow (this);
+			if (window == null) {
+				window = new AppWindow (this);
+			}
+			display_current_service_state ();
             window.show ();
         }