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import traceback
import dbus
import sys
import gobject
from dbus.mainloop.glib import DBusGMainLoop
def handle_signal(changed, undet):
print "Got signal"
print changed
print undet
def execute_subscribe(property_names):
bus = dbus.SessionBus()
try:
proxy_object_manager = bus.get_object("org.freedesktop.ContextKit","/org/freedesktop/ContextKit/Manager")
iface_manager = dbus.Interface(proxy_object_manager, "org.freedesktop.ContextKit.Manager")
print "Requesting the subscriber object"
# Get the subscriber object
new_object_path = iface_manager.GetSubscriber()
print "Got an object path", new_object_path
# And then execute the actual subscribe property_names
proxy_object_subscriber = bus.get_object("org.freedesktop.ContextKit", new_object_path)
iface_subscriber = dbus.Interface(proxy_object_subscriber, "org.freedesktop.ContextKit.Subscriber")
# Connect to the signal
print "Connecting to the signal"
iface_subscriber.connect_to_signal("Changed", handle_signal)
print "Executing the Subscribe"
ret = iface_subscriber.Subscribe(property_names)
print "Returned:", ret
loop = gobject.MainLoop()
loop.run()
except dbus.DBusException:
print "Caught an exception"
traceback.print_exc()
if __name__ == "__main__":
DBusGMainLoop(set_as_default=True)
# You can write the properties of intrest directly here
#execute_get(["Context.Device.Orientation.facingUp", "Context.Environment.Location.latitude", "Context.Environment.Location.longitude", "Context.Environment.Location.altitude"])
# Or use the command line parameters
print "Executing Subscribe with the properties", sys.argv[1:]
execute_subscribe(sys.argv[1:])
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