Switch back to greeter when logind emits SecureAttentionKey

Author: n3rdopolis

src/login1.c

@@ -14,6 +14,7 @@
 #include <gio/gio.h>
 
 #include "login1.h"
+#include "seat.h"
 
 #define LOGIN1_SERVICE_NAME "org.freedesktop.login1"
 #define LOGIN1_OBJECT_NAME "/org/freedesktop/login1"
@@ -248,6 +249,20 @@ signal_cb (GDBusConnection *connection,
             g_signal_emit (service, service_signals[SEAT_REMOVED], 0, seat);
         }
     }
+    else if (strcmp (signal_name, "SecureAttentionKey") == 0)
+    {
+        Login1SeatPrivate *s_priv;
+        const gchar *id, *path;
+        g_variant_get (parameters, "(&s&o)", &id, &path);
+
+        g_autoptr(Login1Seat) seat = login1_service_get_seat (service, id);
+        s_priv = login1_seat_get_instance_private (seat);
+        if (seat)
+        {
+            seat_switch_to_greeter (s_priv->id);
+        }
+
+    }
 }
 
 gboolean