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services/presence/buddy: Use add_signal_receiver to connect signals.

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This means we don't need to care whether the Sugar shell is actually running -
if it is, we'll get its signals, and if it's not, obviously it can't send us
any signals!
This commit is contained in:
Simon McVittie 2007-05-25 12:06:57 +01:00
parent 7b0d65a211
commit fdd8c315cf
1 changed files with 10 additions and 36 deletions
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46
services/presence/buddy.py
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@ -605,48 +605,22 @@ class ShellOwner(GenericOwner):
nick=nick, color=color, icon=icon, server=server, nick=nick, color=color, icon=icon, server=server,
key_hash=key_hash, registered=registered) key_hash=key_hash, registered=registered)
# Connect to the shell to get notifications on Owner object # Ask to get notifications on Owner object property changes in the
# property changes # shell. If it's not currently running, no problem - we'll get the
try: # signals when it does run
self._connect_to_shell() for (signal, cb) in (('IconChanged', self._icon_changed_cb),
except dbus.DBusException: ('ColorChanged', self._color_changed_cb),
pass ('NickChanged', self._nick_changed_cb)):
self._bus.add_signal_receiver(cb, signal_name=signal,
dbus_interface=self._SHELL_OWNER_INTERFACE,
bus_name=self._SHELL_SERVICE,
path=self._SHELL_PATH)
def set_registered(self, value): def set_registered(self, value):
"""Handle notification that we have been registered""" """Handle notification that we have been registered"""
if value: if value:
profile.set_server_registered() profile.set_server_registered()
def _name_owner_changed_cb(self, name, old, new):
# chain up to superclass
GenericOwner._name_owner_changed_cb(self, name, old, new)
if name != self._SHELL_SERVICE:
return
if (old and len(old)) and (not new and not len(new)):
# shell went away
self._shell_owner = None
elif (not old and not len(old)) and (new and len(new)):
# shell started
self._connect_to_shell()
def _connect_to_shell(self):
"""Connect to the Sugar Shell service to watch for events
Connects the various XChanged events on the Sugar Shell
service to our _x_changed_cb methods.
"""
obj = self._bus.get_object(self._SHELL_SERVICE, self._SHELL_PATH)
self._shell_owner = dbus.Interface(obj, self._SHELL_OWNER_INTERFACE)
self._shell_owner.connect_to_signal('IconChanged',
self._icon_changed_cb)
self._shell_owner.connect_to_signal('ColorChanged',
self._color_changed_cb)
self._shell_owner.connect_to_signal('NickChanged',
self._nick_changed_cb)
self._shell_owner.connect_to_signal('CurrentActivityChanged',
self._cur_activity_changed_cb)
def _icon_changed_cb(self, icon): def _icon_changed_cb(self, icon):
"""Handle icon change, set property to generate event""" """Handle icon change, set property to generate event"""
self.props.icon = icon self.props.icon = icon