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# Copyright (c) 2017 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
# Python built-ins
import threading
import time
# Uranium/Messaging
from UM.Logger import Logger
# Uranium/IO
from UM.OutputDevice.OutputDevicePlugin import OutputDevicePlugin
from . import RemovableDriveOutputDevice
# Uranium/l18n
from UM.i18n import i18nCatalog
catalog = i18nCatalog("cura")
class RemovableDrivePlugin(OutputDevicePlugin):
def __init__(self):
super().__init__()
self._update_thread = threading.Thread(target = self._updateThread)
self._update_thread.setDaemon(True)
self._check_updates = True
self._drives = {}
def start(self):
self._update_thread.start()
def stop(self):
self._check_updates = False
self._update_thread.join()
self._addRemoveDrives({})
def checkRemovableDrives(self):
raise NotImplementedError()
def ejectDevice(self, device):
try:
Logger.log("i", "Attempting to eject the device")
result = self.performEjectDevice(device)
except Exception as e:
Logger.log("e", "Ejection failed due to: %s" % str(e))
result = False
if result:
Logger.log("i", "Succesfully ejected the device")
return result
def performEjectDevice(self, device):
raise NotImplementedError()
def _updateThread(self):
while self._check_updates:
result = self.checkRemovableDrives()
self._addRemoveDrives(result)
time.sleep(5)
def _addRemoveDrives(self, drives):
# First, find and add all new or changed keys
for key, value in drives.items():
if key not in self._drives:
self.getOutputDeviceManager().addOutputDevice(RemovableDriveOutputDevice.RemovableDriveOutputDevice(key, value))
continue
if self._drives[key] != value:
self.getOutputDeviceManager().removeOutputDevice(key)
self.getOutputDeviceManager().addOutputDevice(RemovableDriveOutputDevice.RemovableDriveOutputDevice(key, value))
# Then check for keys that have been removed
for key in self._drives.keys():
if key not in drives:
self.getOutputDeviceManager().removeOutputDevice(key)
self._drives = drives
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