gajim-plural/gajim/common/sleepy.py

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# -*- coding:utf-8 -*-
## src/common/sleepy.py
##
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## Copyright (C) 2003-2014 Yann Leboulanger <asterix AT lagaule.org>
## Copyright (C) 2005-2006 Nikos Kouremenos <kourem AT gmail.com>
## Copyright (C) 2007 Jean-Marie Traissard <jim AT lapin.org>
## Copyright (C) 2008 Mateusz Biliński <mateusz AT bilinski.it>
##
## This file is part of Gajim.
##
## Gajim 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; version 3 only.
##
## Gajim is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
##
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from gajim.common import app
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import os
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STATE_UNKNOWN = 'OS probably not supported'
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STATE_XA = 'extended away'
STATE_AWAY = 'away'
STATE_AWAKE = 'awake'
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SUPPORTED = True
try:
if os.name == 'nt':
import ctypes
GetTickCount = ctypes.windll.kernel32.GetTickCount
GetLastInputInfo = ctypes.windll.user32.GetLastInputInfo
class LASTINPUTINFO(ctypes.Structure):
_fields_ = [('cbSize', ctypes.c_uint), ('dwTime', ctypes.c_uint)]
lastInputInfo = LASTINPUTINFO()
lastInputInfo.cbSize = ctypes.sizeof(lastInputInfo)
# one or more of these may not be supported before XP.
OpenInputDesktop = ctypes.windll.user32.OpenInputDesktop
CloseDesktop = ctypes.windll.user32.CloseDesktop
SystemParametersInfo = ctypes.windll.user32.SystemParametersInfoW
else: # unix
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from gajim.common import idle
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idle.xss_available
except Exception:
app.log.debug('Unable to load idle module')
SUPPORTED = False
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class SleepyWindows:
def __init__(self, away_interval = 60, xa_interval = 120):
self.away_interval = away_interval
self.xa_interval = xa_interval
self.state = STATE_AWAKE # assume we are awake
def getIdleSec(self):
GetLastInputInfo(ctypes.byref(lastInputInfo))
idleDelta = float(GetTickCount() - lastInputInfo.dwTime) / 1000
return idleDelta
def poll(self):
"""
Check to see if we should change state
"""
if not SUPPORTED:
return False
# screen saver, in windows >= XP
saver_runing = ctypes.c_int(0)
# 0x72 is SPI_GETSCREENSAVERRUNNING
if SystemParametersInfo(0x72, 0, ctypes.byref(saver_runing), 0) and \
saver_runing.value:
self.state = STATE_XA
return True
desk = OpenInputDesktop(0, False, 0)
if not desk:
# Screen locked
self.state = STATE_XA
return True
CloseDesktop(desk)
idleTime = self.getIdleSec()
# xa is stronger than away so check for xa first
if idleTime > self.xa_interval:
self.state = STATE_XA
elif idleTime > self.away_interval:
self.state = STATE_AWAY
else:
self.state = STATE_AWAKE
return True
def getState(self):
return self.state
def setState(self, val):
self.state = val
class SleepyUnix:
def __init__(self, away_interval = 60, xa_interval = 120):
global SUPPORTED
self.away_interval = away_interval
self.xa_interval = xa_interval
self.state = STATE_AWAKE # assume we are awake
def getIdleSec(self):
return idle.getIdleSec()
def poll(self):
"""
Check to see if we should change state
"""
if not SUPPORTED:
return False
idleTime = self.getIdleSec()
# xa is stronger than away so check for xa first
if idleTime > self.xa_interval:
self.state = STATE_XA
elif idleTime > self.away_interval:
self.state = STATE_AWAY
else:
self.state = STATE_AWAKE
return True
def getState(self):
return self.state
def setState(self, val):
self.state = val
if os.name == 'nt':
Sleepy = SleepyWindows
else:
Sleepy = SleepyUnix