gajim-plural/src/common/idle.py

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2008-12-03 23:57:43 +01:00
## src/common/idle.py
##
## (C) 2008 Thorsten P. 'dGhvcnN0ZW5wIEFUIHltYWlsIGNvbQ==\n'.decode("base64")
##
## 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/>.
import ctypes
import ctypes.util
class XScreenSaverInfo(ctypes.Structure):
_fields_ = [
('window', ctypes.c_ulong),
('state', ctypes.c_int),
('kind', ctypes.c_int),
('til_or_since', ctypes.c_ulong),
('idle', ctypes.c_ulong),
('eventMask', ctypes.c_ulong)
]
XScreenSaverInfo_p = ctypes.POINTER(XScreenSaverInfo)
display_p = ctypes.c_void_p
xid = ctypes.c_ulong
c_int_p = ctypes.POINTER(ctypes.c_int)
try:
libX11path = ctypes.util.find_library('X11')
if libX11path == None:
raise OSError('libX11 could not be found.')
libX11 = ctypes.cdll.LoadLibrary(libX11path)
libX11.XOpenDisplay.restype = display_p
libX11.XOpenDisplay.argtypes = ctypes.c_char_p,
libX11.XDefaultRootWindow.restype = xid
libX11.XDefaultRootWindow.argtypes = display_p,
libXsspath = ctypes.util.find_library('Xss')
if libXsspath == None:
raise OSError('libXss could not be found.')
libXss = ctypes.cdll.LoadLibrary(libXsspath)
libXss.XScreenSaverQueryExtension.argtypes = display_p, c_int_p, c_int_p
libXss.XScreenSaverAllocInfo.restype = XScreenSaverInfo_p
libXss.XScreenSaverQueryInfo.argtypes = (display_p, xid, XScreenSaverInfo_p)
dpy_p = libX11.XOpenDisplay(None)
if dpy_p == None:
raise OSError('Could not open X Display.')
_event_basep = ctypes.c_int()
_error_basep = ctypes.c_int()
if libXss.XScreenSaverQueryExtension(dpy_p, ctypes.byref(_event_basep),
ctypes.byref(_error_basep)) == 0:
raise OSError('XScreenSaver Extension not available on display.')
xss_info_p = libXss.XScreenSaverAllocInfo()
if xss_info_p == None:
raise OSError('XScreenSaverAllocInfo: Out of Memory.')
rootwindow = libX11.XDefaultRootWindow(dpy_p)
xss_available = True
except OSError, e:
# Logging?
xss_available = False
def getIdleSec():
"""Returns the idle time in seconds"""
if not xss_available:
return 0
if libXss.XScreenSaverQueryInfo(dpy_p, rootwindow, xss_info_p) == 0:
return 0
else:
return int(xss_info_p.contents.idle) / 1000
def close():
global xss_available
if xss_available:
libX11.XFree(xss_info_p)
libX11.XCloseDisplay(dpy_p)
xss_available = False
if __name__ == '__main__':
import time
time.sleep(2.1)
print getIdleSec()
close()
print getIdleSec()