/usr/lib/python2.7/dist-packages/framework/subsystems/oeventsd/leds_actions.py is in fso-frameworkd 0.10.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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"""
The freesmartphone Events Module - Python Implementation
(C) 2008-2009 Michael 'Mickey' Lauer <mlauer@vanille-media.de>
(C) 2008 Jan 'Shoragan' Lübbe <jluebbe@lasnet.de>
(C) 2008 Guillaume 'Charlie' Chereau
(C) 2008 Openmoko, Inc.
GPLv2 or later
Package: oeventsd
Module: fso_actions
"""
MODULE_NAME = "oeventsd"
__version__ = "0.5.0"
import dbus
from framework.patterns import dbuscache, tasklet
from action import Action, DBusAction
import logging
logger = logging.getLogger( MODULE_NAME )
#============================================================================#
class Led(object):
#============================================================================#
"""
Led object
This class is used to keep track of every "clients" that wants to use the led.
The current status of the led id the higher level of all the clients,
the levels being :
- dark
- blink
- light
"""
# We keep a list of all the leds object maped by device name
__leds = {}
def __new__(cls, device):
"""We don't create two leds with the same device"""
if device in Led.__leds:
return Led.__leds[device]
ret = object.__new__(cls)
ret.__init(device)
return ret
def __repr__(self):
return self.device
def __init(self, device):
self.device = device
self.interface = dbuscache.dbusInterfaceForObjectWithInterface(
"org.freesmartphone.odeviced",
"/org/freesmartphone/Device/LED/%s" % device,
"org.freesmartphone.Device.LED" )
self.users = {}
def on_reply(self, *args):
# We don't pass the reply to anything
pass
def on_error(self, error):
logger.error("DBus call returned an error")
def __turn_on(self):
logger.info("turn led %s on", self)
self.interface.SetBrightness(100, reply_handler=self.on_reply, error_handler=self.on_error)
def __turn_off(self):
logger.info("turn led %s off", self)
self.interface.SetBrightness(0, reply_handler=self.on_reply, error_handler=self.on_error)
def __blink(self):
logger.info("blink led %s", self)
self.interface.SetBlinking(100, 1500, reply_handler=self.on_reply, error_handler=self.on_error)
def turn_on(self, user):
self.users[user] = 'on'
self.__update()
def turn_off(self, user):
if user in self.users:
del self.users[user]
else:
logger.warning("try to turn off led %s before having turing it on", self)
self.__update()
def blink(self, user):
self.users[user] = 'blink'
self.__update()
def __update(self):
status = self.users.values()
logger.debug("led %s status = %s", self, status)
if 'on' in status:
self.__turn_on()
elif 'blink' in status:
self.__blink()
else:
self.__turn_off()
#============================================================================#
class LedAction(Action):
#============================================================================#
"""
A dbus action on a LED device
"""
function_name = 'SetLed'
def __init__(self, device, action):
Action.__init__( self )
self.led = Led(device)
self.action = action
if not action in ['light', 'blink']:
logger.error("Unhandeled action on led %s : %s", device, action)
def trigger(self, **kargs):
if self.action == 'light':
self.led.turn_on(self)
elif self.action == 'blink':
self.led.blink(self)
def untrigger(self, **kargs):
self.led.turn_off(self)
def __repr__(self):
return "SetLed(%s, %s)" % (self.led, self.action)
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