Fix connect issues with moonraker. Addresses #328

ks_includes/KlippyWebsocket.py

@@ -64,6 +64,12 @@ class KlippyWebsocket(threading.Thread):
             self.on_open(ws)
 
         try:
+            state = self._screen.apiclient.get_server_info()
+            if state is False or state['result']['klippy_connected'] is False:
+                return False
+            printer_info = self._screen.apiclient.get_printer_info()
+            if printer_info is False:
+                return False
             token = self._screen.apiclient.get_oneshot_token()
         except Exception:
             logging.debug("Unable to get oneshot token")
@@ -160,7 +166,8 @@ class KlippyWebsocket(threading.Thread):
             Gdk.threads_add_idle(
                 GLib.PRIORITY_HIGH_IDLE,
                 self._callback['on_close'],
-                "Lost Connection to Moonraker"
+                "Lost Connection to Moonraker",
+                True
             )
 
     def reconnect(self):

screen.py

@@ -774,10 +774,12 @@ class KlipperScreen(Gtk.Window):
     def _send_action(self, widget, method, params):
         self._ws.send_method(method, params)
 
-    def printer_initializing(self, text=None):
+    def printer_initializing(self, text=None, disconnect=False):
         self.shutdown = True
         self.close_popup_message()
         self.show_panel('splash_screen', "splash_screen", "Splash Screen", 2)
+        if disconnect is True and self.printer is not None:
+            self.printer.state = "disconnected"
         if text is not None:
             self.panels['splash_screen'].update_text(text)
             self.panels['splash_screen'].show_restart_buttons()