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Adding check whether getGlobalContainerStack() returns None or not.

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If we get None here, the firmware-updater will be closed and detailed
error returned to the logs with an explanation why.
This commit is contained in:
Thomas Karl Pietrowski 2016-06-15 14:38:23 +02:00
parent a7fc3258a7
commit 2e7db9b732
1 changed files with 9 additions and 2 deletions
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11
plugins/USBPrinting/USBPrinterOutputDeviceManager.py
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@ -128,11 +128,18 @@ class USBPrinterOutputDeviceManager(QObject, SignalEmitter, OutputDevicePlugin,
return USBPrinterOutputDeviceManager._instance return USBPrinterOutputDeviceManager._instance
def _getDefaultFirmwareName(self): def _getDefaultFirmwareName(self):
# Check whether getGlobalContainerStack() returns None or not...
global_container_stack = Application.getInstance().getGlobalContainerStack()
if not global_container_stack:
Logger.log("c", "getGlobalContainerStack() returned None")
Logger.log("i", "Closing firmware-updater UI as a consequence")
self._firmware_view.close()
# Detecting id of the current machine # Detecting id of the current machine
machine_id = Application.getInstance().getGlobalContainerStack().getBottom().id machine_id = global_container_stack.getBottom().id
# Detecting whether it has a heated bed # Detecting whether it has a heated bed
machine_has_heated_bed = Application.getInstance().getGlobalContainerStack().getProperty("machine_heated_bed", "value") machine_has_heated_bed = global_container_stack.getProperty("machine_heated_bed", "value")
if platform.system() == "Linux": if platform.system() == "Linux":
baudrate = 115200 baudrate = 115200