Allow printer output devices to set their ability to update firmware

cura/PrinterOutput/GenericOutputController.py

@@ -29,8 +29,6 @@ class GenericOutputController(PrinterOutputController):
         self._output_device.printersChanged.connect(self._onPrintersChanged)
         self._active_printer = None
 
-        self.can_update_firmware = True
-
     def _onPrintersChanged(self):
         if self._active_printer:
             self._active_printer.stateChanged.disconnect(self._onPrinterStateChanged)

cura/PrinterOutput/PrinterOutputController.py

@@ -2,6 +2,7 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from UM.Logger import Logger
+from UM.Signal import Signal
 
 MYPY = False
 if MYPY:
@@ -56,3 +57,9 @@ class PrinterOutputController:
 
     def sendRawCommand(self, printer: "PrinterOutputModel", command: str):
         Logger.log("w", "Custom command not implemented in controller")
+
+    canUpdateFirmwareChanged = Signal()
+    def setCanUpdateFirmware(self, can_update_firmware: bool):
+        if can_update_firmware != self.can_update_firmware:
+            self.can_update_firmware = can_update_firmware
+            self.canUpdateFirmwareChanged.emit()

cura/PrinterOutput/PrinterOutputModel.py

@@ -26,6 +26,7 @@ class PrinterOutputModel(QObject):
     buildplateChanged = pyqtSignal()
     cameraChanged = pyqtSignal()
     configurationChanged = pyqtSignal()
+    canUpdateFirmwareChanged = pyqtSignal()
 
     def __init__(self, output_controller: "PrinterOutputController", number_of_extruders: int = 1, parent=None, firmware_version = "") -> None:
         super().__init__(parent)
@@ -34,6 +35,7 @@ class PrinterOutputModel(QObject):
         self._name = ""
         self._key = ""  # Unique identifier
         self._controller = output_controller
+        self._controller.canUpdateFirmwareChanged.connect(self._onControllerCanUpdateFirmwareChanged)
         self._extruders = [ExtruderOutputModel(printer = self, position = i) for i in range(number_of_extruders)]
         self._printer_configuration = ConfigurationModel()    # Indicates the current configuration setup in this printer
         self._head_position = Vector(0, 0, 0)
@@ -284,6 +286,10 @@ class PrinterOutputModel(QObject):
             return self._controller.can_update_firmware
         return False
 
+    # Stub to connect UM.Signal to pyqtSignal
+    def _onControllerCanUpdateFirmwareChanged(self):
+        self.canUpdateFirmwareChanged.emit()
+
     # Returns the configuration (material, variant and buildplate) of the current printer
     @pyqtProperty(QObject, notify = configurationChanged)
     def printerConfiguration(self):