dbus/examples/example-signal-recipient.py

   1 #!/usr/bin/env python
   2
   3 import dbus
   4 import dbus.decorators
   5 import dbus.glib
   6 import gobject
   7
   8 def handle_reply(msg):
   9     print msg
  10
  11 def handle_error(e):
  12     print str(e)
  13
  14 def emit_signal():
  15    #call the emitHelloSignal method
  16    object.emitHelloSignal(dbus_interface="org.designfu.TestService")
  17                           #reply_handler = handle_reply, error_handler = handle_error)
  18    return True
  19
  20 bus = dbus.SessionBus()
  21 object  = bus.get_object("org.designfu.TestService","/org/designfu/TestService/object")
  22
  23 def hello_signal_handler(hello_string):
  24     print ("Received signal and it says: " + hello_string)
  25
  26 @dbus.decorators.explicitly_pass_message
  27 def catchall_signal_handler(*args, **keywords):
  28     #The dbus.handler directive passes in the special __dbus_message__ variable
  29     dbus_message = keywords["dbus_message"]
  30     print "Caught signal " + dbus_message.get_member()
  31     for arg in args:
  32         print "        " + str(arg)
  33
  34 def catchall_hello_signals_handler(hello_string):
  35     print ("Received a hello signal and it says ") + hello_string
  36
  37 @dbus.decorators.explicitly_pass_message
  38 def catchall_testservice_interface_handler(hello_string, dbus_message):
  39     print "org.designfu.TestService interface says " + hello_string + " when it sent signal " + dbus_message.get_member()
  40
  41 object.connect_to_signal("HelloSignal", hello_signal_handler, dbus_interface="org.designfu.TestService", arg0="Hello")
  42
  43 #lets make a catchall
  44 bus.add_signal_receiver(catchall_signal_handler)
  45 bus.add_signal_receiver(catchall_hello_signals_handler, dbus_interface = "org.designfu.TestService", signal_name = "HelloSignal")
  46 bus.add_signal_receiver(catchall_testservice_interface_handler, dbus_interface = "org.designfu.TestService")
  47
  48
  49 gobject.timeout_add(2000, emit_signal)
  50
  51 # Tell the remote object to emit the signal
  52
  53 loop = gobject.MainLoop()
  54 loop.run()