1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
#!/usr/bin/python
# -*- coding: UTF-8 -*-
"""
Copyright 2008 Sebastian Kügler, Canonical Ltd, Luka Renko
Authors:
Andreas Wenning <awen@awen.dk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
"""
"""
A frontend to HAL's power features for KDE - Helper application
This application listens for HAL signals and issues dcop-calls to the
kde-power-manager that originally started it. To avoid the need for
kde-power-manager to shut it's helper down, this application
will automatically shut down if it's kde-power-manager isn't running.
"""
import dbus, sys, time
from dbus.mainloop.glib import DBusGMainLoop
import gobject
from dcopext import DCOPClient, DCOPObj, DCOPApp
class GPMHelper():
def mother_alive(self):
"""Check that our mother is still alive"""
found = False
for name in self.dcop.registeredApplications():
name = str(name)
if name == self.motherName:
found = True
if not found:
"""No mother; commit suicide"""
print "guidance-power-manager not alive; exiting"
loop.quit()
"""Called when signal is received"""
def signal_recv(self, *args):
if args[0] == "ButtonPressed":
if args[1] == "brightness-up":
if time.time()-0.02 <= self.last_brightness_up <= time.time():
"""Most likely an extra brightness-up call, discarding"""
print "Extra brightness-up call discarded"
return
try:
ok, foo = self.mother.brightnessUp()
if not ok:
print "brightnessUp-call failed"
return self.mother_alive()
self.last_brightness_up = time.time()
except:
print "brightnessUp-call failed"
return self.mother_alive()
elif args[1] == "brightness-down":
if time.time()-0.02 <= self.last_brightness_down <= time.time():
"""Most likely an extra brightness-down call, discarding"""
print "Extra brightness-down call discarded"
return
try:
ok, foo = self.mother.brightnessDown()
if not ok:
print "brightnessDown-call failed"
return self.mother_alive()
self.last_brightness_down = time.time()
except:
print "brightnessDown-call failed"
return self.mother_alive()
elif args[1] == "sleep":
if time.time()-1 <= self.last_sleep <= time.time():
"""Most likely an extra sleep-call, discarding"""
print "Extra sleep-call discarded"
return
try:
ok, foo = self.mother.suspend()
if not ok:
print "suspend-call failed"
return self.mother_alive()
self.last_sleep = time.time()
except:
print "suspend-call failed"
return self.mother_alive()
elif args[1] == "hibernate":
if time.time()-1 <= self.last_hibernate <= time.time():
"""Most likely an extra hibernate-call, discarding"""
print "Extra hibernate-call discarded"
return
try:
ok, foo = self.mother.hibernate()
if not ok:
print "hibernate-call failed"
return self.mother_alive()
self.last_hibernate = time.time()
except:
print "hibernate failed"
return self.mother_alive()
def __init__(self):
"""Connect to HAL"""
self.dbus_loop = DBusGMainLoop(set_as_default=True)
self.bus = dbus.SystemBus(mainloop=self.dbus_loop)
hal_manager_obj = self.bus.get_object("org.freedesktop.Hal",u'/org/freedesktop/Hal/Manager')
self.hal_manager = dbus.Interface(hal_manager_obj, "org.freedesktop.Hal.Manager")
"""Find button-devices and to connect to"""
button_devices = self.hal_manager.FindDeviceByCapability("button")
for device in button_devices:
self.bus.add_signal_receiver(self.signal_recv,
"Condition",
"org.freedesktop.Hal.Device",
"org.freedesktop.Hal",
device)
"""Let's find our mother"""
self.dcop = DCOPClient()
self.dcop.attach()
found = False
for name in self.dcop.registeredApplications():
name = str(name)
if name.startswith('guidance-'):
self.motherName = name
try:
self.mother = DCOPObj(name, self.dcop, 'power-manager')
found = True
except:
"""Do nothing, catched by found=False"""
break
if not found:
"""No mother; commit suicide"""
print "No guidance-power-manager is running"
sys.exit()
"""Some laptops issue double sleep/hibernate-calls, we need to discard one in that case"""
self.last_sleep = 0
self.last_hibernate = 0
"""And multiple brightness calls is also possible"""
self.last_brightness_up = 0
self.last_brightness_down = 0
if __name__ == "__main__":
gpmh = GPMHelper()
loop = gobject.MainLoop()
loop.run()
|
