no more json config

README.md

@@ -7,13 +7,10 @@ A simple log in screen for use on touch screens, designed for use on postmarketO
 make install
 ```
 ## Configuring
-/etc/lightdm_mobile_greeter.json
-```json
-{"user":"<YOUR USERNAME HERE>"}
-```
+As of version 3 I will now try to guess the user.
 
 lightdm.conf
 ```
 greeter-session=lightdm-mobile-greeter
 user-session=<THE CHOSEN DE TO LAUNCH AFTER SUCCESSFUL LOGIN>
-```
+```

lightdm-mobile-greeter.py

@@ -1,14 +1,6 @@
 #!/usr/bin/python3
 import gi
 from gi.repository import Gtk, Gdk, Handy, LightDM
-import json
-
-
-class Config:
-    def __init__(self):
-        with open("/etc/lightdm_mobile_greeter.json") as f:
-            j = json.load(f)
-        self.user = j["user"]
 
 
 class Handler:
@@ -24,8 +16,8 @@ class Handler:
         vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, visible=True)
         self.de_select.add(vbox)
         self.greeter.connect_sync()
-        self.conf = Config()
-        self.greeter.authenticate(self.conf.user)
+        self.user = LightDM.UserList.get_instance().get_users()[0].get_name()
+        self.greeter.authenticate(self.user)
         self.session = self.greeter.get_default_session_hint()
         sessions = iter([(s.get_name(), s.get_key()) for s in LightDM.get_sessions()])
         name, key = sessions.__next__()
@@ -60,7 +52,7 @@ class Handler:
         if greeter.get_is_authenticated():
             greeter.start_session_sync(self.session)
         else:
-            greeter.authenticate(self.conf.user)
+            greeter.authenticate(self.user)
 
     def show_msg(self, greeter, text, type):
         self.msg_label.set_text(text)