fix circular loop and removed register klippy callback

Author: gmmcosta15

BlocksScreen/devices/amu/manager.py

@@ -6,8 +6,7 @@
 
 from PyQt6 import QtCore
 
-from BlocksScreen.devices.amu.config_toggler import ConfigToggler
-
+from .config_toggler import ConfigToggler
 from .models import MMUState, SpoolmanSupport
 
 if typing.TYPE_CHECKING:
@@ -218,6 +217,15 @@ def update_mmu_state(self, data: dict, name: str = "") -> None:
             self._mmu_state = self._mmu_state.apply_diff(data)
         self.mmu_state_changed.emit(self._mmu_state)
 
+    def on_object_updated(
+        self, object_type: str, object_name: str, values: dict
+    ) -> None:
+        """Route object_updated signal from Printer to the appropriate handler."""
+        if object_type == "mmu":
+            self.update_mmu_state(values)
+        elif object_type == "filament_switch_detected":
+            self.on_pre_gate_update(values, object_name)
+
     def on_klippy_state(self, state: str) -> None:
         """React to changes in klippy states"""
         if state.lower() != "ready":

BlocksScreen/lib/panels/mainWindow.py

@@ -4,7 +4,7 @@
 
 import events
 from configfile import BlocksScreenConfig, get_configparser
-from devices.amu.manager import AMUManager
+from devices.amu import AMUManager
 from devices.storage import USBManager
 from lib.files import Files
 from lib.machine import MachineControl
@@ -201,11 +201,7 @@ def __init__(self):
         self.query_object_list.connect(self.utilitiesPanel.on_object_list)
         self.printer.extruder_update.connect(self.on_extruder_update)
         self.printer.heater_bed_update.connect(self.on_heater_bed_update)
-        self.printer.register_callback("mmu", self.amu_manager.update_mmu_state)
-        self.printer.register_callback(
-            "filament_switch_sensor", self.amu_manager.on_pre_gate_update
-        )
-        self.printer.register_klippy_callback(self.amu_manager.on_klippy_state)
+        self.printer.object_updated.connect(self.amu_manager.on_object_updated)
         self.amu_manager.run_gcode_signal.connect(self.ws.api.run_gcode)
         self.run_gcode_signal.connect(self.ws.api.run_gcode)
 

BlocksScreen/lib/printer.py

@@ -175,17 +175,6 @@ def register_callback(
         """
         self.__inject_callback(object_type, callback)
 
-    def register_klippy_callback(self, callback: typing.Callable[[str], None]) -> None:
-        """Register a callback for klippy lifecycle state changes.
-
-        Args:
-            callback:  Callable with signature  ``(state: str) -> None``.
-        """
-        if not callable(callback):
-            logger.warning("register_klippy_callback: not callable")
-            return
-        self._klippy_callback = callback
-
     @QtCore.pyqtSlot(str, name="on_klippy_status")
     def on_klippy_status(self, state: str):
         """Handles klippy update status