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services/presence/psutils, buddy: Track NameOwnerChanged in IP4AddressMonitor

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This means Buddy and its subclasses no longer need to care about
NameOwnerChanged at all.

The old code might not have worked anyway, since it was watching for
NameOwnerChanged on the session bus, but invoking NM methods on the system bus.
This commit is contained in:
Simon McVittie 2007-05-25 12:14:39 +01:00
parent fdd8c315cf
commit 56b95264cf
2 changed files with 12 additions and 26 deletions
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7
services/presence/buddy.py
View File

@ -533,19 +533,12 @@ class GenericOwner(Buddy):
self._owner = True
self._bus = dbus.SessionBus()
self._bus.add_signal_receiver(self._name_owner_changed_cb,
signal_name="NameOwnerChanged",
dbus_interface="org.freedesktop.DBus")
def _ip4_address_changed_cb(self, monitor, address):
"""Handle IPv4 address change, set property to generate event"""
props = {_PROP_IP4_ADDRESS: address}
self.set_properties(props)
def _name_owner_changed_cb(self, name, old, new):
"""Handle D-Bus services we care about appearing and disappearing."""
self._ip4_addr_monitor.handle_name_owner_changed(name, old, new)
def get_registered(self):
"""Retrieve whether owner has registered with presence server"""
return self._registered

31
services/presence/psutils.py
View File

@ -53,23 +53,13 @@ class IP4AddressMonitor(gobject.GObject):
def __init__(self):
gobject.GObject.__init__(self)
self._nm_present = False
self._nm_has_been_present = False
self._matches = []
self._addr = None
self._nm_obj = None
sys_bus = dbus.SystemBus()
bus_object = sys_bus.get_object('org.freedesktop.DBus', '/org/freedesktop/DBus')
try:
if bus_object.GetNameOwner(NM_SERVICE, dbus_interface='org.freedesktop.DBus'):
self._nm_present = True
except dbus.DBusException:
pass
if self._nm_present:
self._connect_to_nm()
else:
addr = self._get_address_fallback()
self._update_address(addr)
self._watch = sys_bus.watch_name_owner(NM_SERVICE, self._nm_owner_cb)
def do_get_property(self, pspec):
if pspec.name == "address":
@ -163,20 +153,23 @@ class IP4AddressMonitor(gobject.GObject):
if new_state == 4: # NM_STATE_DISCONNECTED
self._update_address(None)
def handle_name_owner_changed(self, name, old, new):
def _nm_owner_cb(self, unique_name):
"""Clear state when NM goes away"""
if name != NM_SERVICE:
return
if (old and len(old)) and (not new and not len(new)):
# NM went away
if unique_name == '':
# NM went away, or isn't there at all
self._nm_present = False
for match in self._matches:
match.remove()
self._matches = []
self._update_address(None)
elif (not old and not len(old)) and (new and len(new)):
if self._nm_has_been_present:
self._update_address(None)
else:
addr = self._get_address_fallback()
self._update_address(addr)
elif not self._nm_present:
# NM started up
self._nm_present = True
self._nm_has_been_present = True
self._connect_to_nm()
def _get_iface_address(self, iface):