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# Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from gi.repository import Gtk, GLib
import Idle
class Locker(object):
def __init__(self, lockTimeout, doLock, doUnlock, logoutTimeout = None, doLogout = None, updateLogoutTimeout = None):
self.locked = False
self.lockTimeout = lockTimeout
self.logoutTimeout = logoutTimeout
self.doLock = doLock
self.doUnlock = doUnlock
self.doLogout = doLogout
self.updateLogoutTimeout = updateLogoutTimeout
if self.lockTimeout > 0:
GLib.timeout_add_seconds(1, self._checkLock)
else:
GLib.idle_add(self.lock)
def _checkLock(self):
if self.locked:
return False
idle = Idle.getIdleSec()
if (idle >= self.lockTimeout):
GLib.idle_add(self.lock)
return False
else:
return True
def _checkLogout(self):
self.currentLogoutTimeout = self.currentLogoutTimeout - 1
if self.updateLogoutTimeout is not None:
self.updateLogoutTimeout(self.currentLogoutTimeout)
return self.currentLogoutTimeout > 0
def lock(self):
if not self.locked:
self.locked = True
self.doLock(self.logoutTimeout)
if self.doLogout is not None:
self.currentLogoutTimeout = self.logoutTimeout
if self.currentLogoutTimeout > 0:
GLib.timeout_add_seconds(1, self._checkLogout)
def unlock(self):
if self.locked:
self.doUnlock()
self.locked = False
GLib.timeout_add_seconds(1, self._checkLock)
def _canLogout(self):
return (self.locked and self.doLogout is not None and self.currentLogoutTimeout <= 0)
def logout(self):
if self._canLogout():
self.doLogout()
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