def _detectScreensaverAndPowersavingType(self):
"""This method always runs when the first attempt to inhibit the screensaver and
powersaving is made. It detects what screensaver/powersaving software is running.
After detection is complete, it will finish the inhibiting process."""
logging.info("Attempting to detect screensaver/powersaving type... (" + str(self.dbusDetectionFailures) + " dbus failures so far)")
bus = dbus.SessionBus()
if 'org.gnome.SessionManager' in bus.list_names() and not utils.isProcessRunning("xscreensaver"):
self.screensaverAndPowersavingType = "Gnome3"
elif 'org.freedesktop.ScreenSaver' in bus.list_names() and \
'org.freedesktop.PowerManagement.Inhibit' in bus.list_names():
self.screensaverAndPowersavingType = "KDE"
else:
self.dbusDetectionFailures += 1
if self.dbusDetectionFailures <= 3:
self.dbusDetectionTimer = threading.Timer(10, self._detectScreensaverAndPowersavingType)
self.dbusDetectionTimer.start()
return
else:
# At this point, all attempts to connect to the relevant dbus interfaces have failed.
# This user must be using something other than the Gnome or KDE screensaver programs.
if utils.isProcessRunning("xscreensaver"):
self.screensaverAndPowersavingType = "XSS+DPMS"
else:
self.screensaverAndPowersavingType = "DPMS"
self.attemptingToDetect = False
self.dbusDetectionFailures = 0
self.dbusDetectionTimer = None
logging.info("Successfully detected screensaver and powersaving type: " + str(self.screensaverAndPowersavingType))
if self.sleepAppearsPrevented != self.sleepIsPrevented:
self._performTogglingActions()
def _detectDbusType(self):
"""This method always runs when the first attempt to inhibit the screensaver
and powersaving is made. It detects what dbus service can be used.
After detection is complete, it will finish the inhibiting process."""
logging.info("Attempting to detect screensaver/powersaving type... (" + str(self.dbusDetectionFailures) + " dbus failures so far)")
bus = dbus.SessionBus()
if utils.isProcessRunning("xscreensaver"):
self.screensaverType = "XSS"
for i in xrange(len(self.dbus_service)):
if self.dbusType == None and self.dbus_service[i] in bus.list_names():
self.dbusType = i
if self.dbusType == None:
self.dbusDetectionFailures += 1
if self.dbusDetectionFailures <= 3:
self.dbusDetectionTimer = threading.Timer(10, self._detectDbusType)
self.dbusDetectionTimer.start()
return
else:
# Was unable to detect necessary dbus service.
self.self.dbusType = False;
self.attemptingToDetect = False
self.dbusDetectionFailures = 0
self.dbusDetectionTimer = None
if self.dbusType == False:
logging.info("Dbus detection was unsuccessful.")
else:
logging.info("Successfully detected dbus: " + str(self.dbus_service[self.dbusType]))
if self.sleepAppearsPrevented != self.sleepIsPrevented:
self._performTogglingActions()
def _check_for_process(self):
activate = False
for proc in self.ProcMan.get_process_list():
if utils.isProcessRunning(proc):
activate = True
if self.preventedForProcess or not self.getActivated():
logging.info("Caffeine has detected that the process '" + proc + "' is running, and will auto-activate")
self.setActivated(True)
self.preventedForProcess = True
else:
logging.info("Caffeine has detected that the process '"+
proc + "' is running, but will NOT auto-activate"+
" as Caffeine has already been activated for a different"+
" reason.")
### No process in the list is running, deactivate.
if not activate and self.preventedForProcess:
logging.info("Caffeine had previously auto-activated for a process, but that process is no longer running; deactivating...")
self.setActivated(False)
return True
