klippy: Convert printer_state("shutdown") to an event handler

Convert all users of the printer_state("shutdown") handler to register
a "klippy:shutdown" event handler instead.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 10 insertions, 10 deletions

diff --git a/klippy/gcode.py b/klippy/gcode.py
index c2abbf45..057f845a 100644
--- a/klippy/gcode.py
+++ b/klippy/gcode.py
@@ -16,6 +16,7 @@ class GCodeParser:
     def __init__(self, printer, fd):
         self.printer = printer
         self.fd = fd
+        printer.register_event_handler("klippy:shutdown", self.handle_shutdown)
         # Input handling
         self.reactor = printer.get_reactor()
         self.is_processing_data = False
@@ -112,17 +113,16 @@ class GCodeParser:
             'homing_ypos': self.homing_position[1],
             'homing_zpos': self.homing_position[2]
         }
-    def printer_state(self, state):
-        if state == 'shutdown':
-            if not self.is_printer_ready:
-                return
-            self.is_printer_ready = False
-            self.gcode_handlers = self.base_gcode_handlers
-            self.dump_debug()
-            if self.is_fileinput:
-                self.printer.request_exit('error_exit')
-            self._respond_state("Shutdown")
+    def handle_shutdown(self):
+        if not self.is_printer_ready:
             return
+        self.is_printer_ready = False
+        self.gcode_handlers = self.base_gcode_handlers
+        self.dump_debug()
+        if self.is_fileinput:
+            self.printer.request_exit('error_exit')
+        self._respond_state("Shutdown")
+    def printer_state(self, state):
         if state != 'ready':
             if state == 'disconnect':
                 self._respond_state("Disconnect")