Move Firmware Updater into a plugin of its own

plugins/FirmwareUpdater/FirmwareUpdaterMachineAction.py

@@ -0,0 +1,68 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from cura.CuraApplication import CuraApplication
+from UM.Settings.DefinitionContainer import DefinitionContainer
+from cura.MachineAction import MachineAction
+from UM.i18n import i18nCatalog
+from UM.Settings.ContainerRegistry import ContainerRegistry
+from cura.PrinterOutput.FirmwareUpdater import FirmwareUpdateState
+
+from PyQt5.QtCore import pyqtSignal, pyqtProperty, QObject
+from typing import Optional
+
+MYPY = False
+if MYPY:
+    from cura.PrinterOutput.FirmwareUpdater import FirmwareUpdater
+    from cura.PrinterOutput.PrinterOutputDevice import PrinterOutputDevice
+
+catalog = i18nCatalog("cura")
+
+##  Upgrade the firmware of a machine by USB with this action.
+class FirmwareUpdaterMachineAction(MachineAction):
+    def __init__(self) -> None:
+        super().__init__("UpgradeFirmware", catalog.i18nc("@action", "Upgrade Firmware"))
+        self._qml_url = "FirmwareUpdaterMachineAction.qml"
+        ContainerRegistry.getInstance().containerAdded.connect(self._onContainerAdded)
+
+        self._active_output_device = None #type: Optional[PrinterOutputDevice]
+        self._active_firmware_updater = None #type: Optional[FirmwareUpdater]
+
+        CuraApplication.getInstance().engineCreatedSignal.connect(self._onEngineCreated)
+
+    def _onEngineCreated(self) -> None:
+        CuraApplication.getInstance().getMachineManager().outputDevicesChanged.connect(self._onOutputDevicesChanged)
+
+    def _onContainerAdded(self, container) -> None:
+        # Add this action as a supported action to all machine definitions if they support USB connection
+        if isinstance(container, DefinitionContainer) and container.getMetaDataEntry("type") == "machine" and container.getMetaDataEntry("supports_usb_connection"):
+            CuraApplication.getInstance().getMachineActionManager().addSupportedAction(container.getId(), self.getKey())
+
+    def _onOutputDevicesChanged(self) -> None:
+        if self._active_output_device:
+            self._active_output_device.activePrinter.getController().canUpdateFirmwareChanged.disconnect(self._onControllerCanUpdateFirmwareChanged)
+
+        output_devices = CuraApplication.getInstance().getMachineManager().printerOutputDevices
+        self._active_output_device = output_devices[0] if output_devices else None
+
+        if self._active_output_device:
+            self._active_output_device.activePrinter.getController().canUpdateFirmwareChanged.connect(self._onControllerCanUpdateFirmwareChanged)
+
+        self.outputDeviceCanUpdateFirmwareChanged.emit()
+
+    def _onControllerCanUpdateFirmwareChanged(self) -> None:
+        self.outputDeviceCanUpdateFirmwareChanged.emit()
+
+    outputDeviceCanUpdateFirmwareChanged = pyqtSignal()
+    @pyqtProperty(QObject, notify = outputDeviceCanUpdateFirmwareChanged)
+    def firmwareUpdater(self) -> Optional["FirmwareUpdater"]:
+        if self._active_output_device and self._active_output_device.activePrinter.getController().can_update_firmware:
+            self._active_firmware_updater = self._active_output_device.getFirmwareUpdater()
+            return self._active_firmware_updater
+
+        elif self._active_firmware_updater and self._active_firmware_updater.firmwareUpdateState not in [FirmwareUpdateState.idle, FirmwareUpdateState.completed]:
+            # During a firmware update, the PrinterOutputDevice is disconnected but the FirmwareUpdater is still there
+            return self._active_firmware_updater
+
+        self._active_firmware_updater = None
+        return None