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[FIX] hw_scanner: made evdev dependency optional (obviously it won't work if it's not installed...) 

bzr revid: fva@openerp.com-20140113103148-2uvhd7de6i9o40kx
This commit is contained in:
Frédéric van der Essen 2014-01-13 11:31:48 +01:00
parent f72044585a
commit 0b580af49b
1 changed files with 12 additions and 5 deletions
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17
addons/hw_scanner/controllers/main.py
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@ -12,7 +12,12 @@ from openerp.http import request
_logger = logging.getLogger(__name__)
from evdev import InputDevice, ecodes, categorize, list_devices
try:
import evdev
except ImportError:
_logger.error('OpenERP module hw_scanner depends on the evdev python module')
evdev = None
from select import select
class ScannerDriver(hw_proxy.Proxy):
@ -76,13 +81,15 @@ class ScannerDriver(hw_proxy.Proxy):
}
def get_device(self):
if not evdev:
return None
devices = [ device for device in listdir(self.input_dir)]
keyboards = [ device for device in devices if 'kbd' in device ]
scanners = [ device for device in devices if ('barcode' in device.lower()) or ('scanner' in device.lower()) ]
if len(scanners) > 0:
return InputDevice(join(self.input_dir,scanners[0]))
return evdev.InputDevice(join(self.input_dir,scanners[0]))
elif len(keyboards) > 0:
return InputDevice(join(self.input_dir,keyboards[0]))
return evdev.InputDevice(join(self.input_dir,keyboards[0]))
else:
return None
@ -105,9 +112,9 @@ class ScannerDriver(hw_proxy.Proxy):
device.ungrab()
return ''
for event in device.read():
if event.type == ecodes.EV_KEY:
if event.type == evdev.ecodes.EV_KEY:
#_logger.debug('Evdev Keyboard event %s',evdev.categorize(event))
if event.value == 1: # keydown events
#print categorize(event)
if event.code in self.keymap:
if shift:
barcode.append(self.keymap[event.code][1])