sugar-toolkit-gtk3/shell/example-activity/example-activity.py

#!/usr/bin/python
# -*- tab-width: 4; indent-tabs-mode: t -*- 

import string

import gc
import dbus
import dbus.service
import dbus.glib
import gobject
import pygtk
pygtk.require('2.0')
import gtk,sys

################################################################################
# Code below will be moved to a module someday

class Activity(dbus.service.Object):

	def __init__(self):
		pass

	def name_owner_changed(self, service_name, old_service_name, new_service_name):
		#print "in name_owner_changed: svc=%s oldsvc=%s newsvc=%s"%(service_name, old_service_name, new_service_name)
		if service_name == "com.redhat.Sugar.Shell" and new_service_name == "":
			self.activity_on_disconnected_from_shell()
		#elif service_name == "com.redhat.Sugar.Shell" and old_service_name == "":
		#	self.activity_on_shell_reappeared()

	def activity_connect_to_shell(self):
		self.__bus = dbus.SessionBus()

		self.__bus.add_signal_receiver(self.name_owner_changed, dbus_interface = "org.freedesktop.DBus", signal_name = "NameOwnerChanged")

		self.__activity_container_object = self.__bus.get_object("com.redhat.Sugar.Shell", \
															   "/com/redhat/Sugar/Shell/ActivityContainer")
		self.__activity_container = dbus.Interface(self.__activity_container_object, \
												   "com.redhat.Sugar.Shell.ActivityContainer")

		self.__activity_id = self.__activity_container.add_activity("")
		self.__object_path = "/com/redhat/Sugar/Shell/Activities/%d"%self.__activity_id

		print "object_path = %s"%self.__object_path

		self.__activity_object = dbus.Interface(self.__bus.get_object("com.redhat.Sugar.Shell", self.__object_path), \
											  "com.redhat.Sugar.Shell.ActivityHost")
		self.__window_id = self.__activity_object.get_host_xembed_id()

		print "XEMBED window_id = %d"%self.__window_id

		self.__plug = gtk.Plug(self.__window_id)

		# Now let the Activity register a peer service so the Shell can poke it
		self.__peer_service_name = "com.redhat.Sugar.Activity%d"%self.__activity_id
		self.__peer_object_name = "/com/redhat/Sugar/Activity/%d"%self.__activity_id
		self.__service = dbus.service.BusName(self.__peer_service_name, bus=self.__bus)
		dbus.service.Object.__init__(self, self.__service, self.__peer_object_name)

		self.__activity_object.set_peer_service_name(self.__peer_service_name, self.__peer_object_name)

		self.activity_on_connected_to_shell()

	def activity_get_gtk_plug(self):
		return self.__plug

	def activity_set_tab_text(self, text):
		self.__activity_object.set_tab_text(text)

	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")
	def lost_focus(self):
		self.activity_on_lost_focus()

	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")
	def got_focus(self):
		self.activity_on_got_focus()


	@dbus.service.method("com.redhat.Sugar.Activity", \
						 in_signature="", \
						 out_signature="")
	def close_from_user(self):
		self.activity_on_close_from_user()

	def activity_get_id(self):
		return self.__activity_id


	def __shutdown_reply_cb(self):
		print "in __reply_cb"

		self.__plug.destroy()
		self.__plug = None

		self.__bus = None
		self.__activity_container_object = None
		self.__activity_container = None
		self.__activity_object = None
		self.__service = None

		self.__bus.remove_signal_receiver(self.name_owner_changed, dbus_interface = "org.freedesktop.DBus", signal_name = "NameOwnerChanged")

		self.activity_on_disconnected_from_shell()


		del self



	def __shutdown_error_cb(self, error):
		print "in __error_cb"

	def activity_shutdown(self):
		self.__activity_object.shutdown(reply_handler = self.__shutdown_reply_cb, error_handler = self.__shutdown_error_cb)

	# pure virtual methods

	def activity_on_connected_to_shell(self):
		print "act %d: you need to override activity_on_connected_to_shell"%self.activity_get_id()

	def activity_on_disconnected_from_shell(self):
		print "act %d: you need to override activity_on_disconnected_from_shell"%self.activity_get_id()

	def activity_on_close_from_user(self):
		print "act %d: you need to override activity_on_close_from_user"%self.activity_get_id()

	def activity_on_lost_focus(self):
		print "act %d: you need to override activity_on_lost_focus"%self.activity_get_id()

	def activity_on_got_focus(self):
		print "act %d: you need to override activity_on_got_focus"%self.activity_get_id()

def my_exit():
	sys.exit(0)

def deferred_exit():
	gobject.timeout_add(0, my_exit)

################################################################################

class ExampleActivity(Activity):

	def __init__(self, name):
		self.name = name

	def entry_changed(self, entry):
		self.activity_set_tab_text(entry.get_text())
	
	def activity_on_connected_to_shell(self):
		print "act %d: in activity_on_connected_to_shell"%self.activity_get_id()

		self.activity_set_tab_text(self.name)

		plug = self.activity_get_gtk_plug()
		self.entry = gtk.Entry()
		self.entry.set_text(self.name)
		self.entry.connect("changed", self.entry_changed)
		plug.add(self.entry)
		plug.show_all()

	def activity_on_disconnected_from_shell(self):
		print "act %d: in activity_on_disconnected_from_shell"%self.activity_get_id()
		print "act %d: Shell disappeared..."%self.activity_get_id()

		gc.collect()

	def activity_on_close_from_user(self):
		print "act %d: in activity_on_close_from_user"%self.activity_get_id()
		self.activity_shutdown()

	def activity_on_lost_focus(self):
		print "act %d: in activity_on_lost_focus"%self.activity_get_id()

	def activity_on_got_focus(self):
		print "act %d: in activity_on_got_focus"%self.activity_get_id()

	def __del__(self):
		print "in __del__ for ExampleActivity"


if len(sys.argv) != 2:
	print "usage: example-activity.py <name_of_activity>"
	sys.exit(1)

gc.set_debug(gc.DEBUG_LEAK)

example_activity = ExampleActivity(sys.argv[1])
example_activity.activity_connect_to_shell()
example_activity = None

gtk.main()