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from sugar.presence import PresenceService
from sugar.canvas.IconColor import IconColor
class BuddyModel:
def __init__(self, name=None, buddy=None):
if name and buddy:
raise RuntimeError("Must specify only _one_ of name or buddy.")
self._cur_activity = None
self._buddy_appeared_handler = None
self._pservice = PresenceService.get_instance()
self._buddy = buddy
# If given just a name, try to get the buddy from the PS first
if not self._buddy:
self._name = name
# FIXME: use public key, not name
self._buddy = self._pservice.get_buddy_by_name(self._name)
# If successful, copy properties from the PS buddy object
if self._buddy:
self.__update_buddy(buddy)
else:
# Otherwise, connect to the PS's buddy-appeared signal and
# wait for the buddy to appear
self._buddy_appeared_handler = self._pservice.connect('buddy-appeared',
self.__buddy_appeared_cb)
self._name = name
# Set color to 'inactive'/'disconnected'
self.__set_color_from_string("#888888,#BBBBBB")
def __set_color_from_string(self, color_string):
self._color = IconColor(color_string)
def get_name(self):
return self._name
def get_color(self):
return self._color
def get_buddy(self):
return self._buddy
def __update_buddy(self, buddy):
if not buddy:
raise ValueError("Buddy cannot be None.")
self._buddy = buddy
self._name = self._buddy.get_name()
self.__set_color_from_string(self._buddy.get_color())
self._buddy.connect('property-changed', self.__buddy_property_changed_cb)
def __buddy_appeared_cb(self, pservice, buddy):
# FIXME: use public key rather than buddy name
if self._buddy or buddy.get_name() != self._name:
return
if self._buddy_appeared_handler:
# Once we have the buddy, we no longer need to
# monitor buddy-appeared events
self._pservice.disconnect(self._buddy_appeared_handler)
self._buddy_appeared_handler = None
self.__update_buddy(buddy)
def __buddy_property_changed_cb(self, buddy, keys):
# all we care about right now is current activity
curact = self._buddy.get_current_activity()
self._cur_activity = self._pservice.get_activity(curact)
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