sugar-toolkit-gtk3/services/presence2/buddy.py

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# Copyright (C) 2007, Red Hat, Inc.
# Copyright (C) 2007, Collabora Ltd.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gobject
import dbus, dbus.service
from sugar import profile
_BUDDY_PATH = "/org/laptop/Sugar/Presence/Buddies/"
_BUDDY_INTERFACE = "org.laptop.Sugar.Presence.Buddy"
_OWNER_INTERFACE = "org.laptop.Sugar.Presence.Buddy.Owner"
class NotFoundError(dbus.DBusException):
def __init__(self):
dbus.DBusException.__init__(self)
self._dbus_error_name = _PRESENCE_INTERFACE + '.NotFound'
class Buddy(dbus.service.Object):
"""Represents another person on the network and keeps track of the
activities and resources they make available for sharing."""
def __init__(self, bus_name, object_id, icon_cache):
if not bus_name:
raise ValueError("DBus bus name must be valid")
if not object_id or not isinstance(object_id, int):
raise ValueError("object id must be a valid number")
self._bus_name = bus_name
self._object_id = object_id
self._object_path = _BUDDY_PATH + str(self._object_id)
dbus.service.Object.__init__(self, self._bus_name, self._object_path)
self._activities = {} # Activity ID -> Activity
self._icon_cache = icon_cache
self._nick_name = None
self._color = None
self._key = None
self._current_activity = None
# dbus signals
@dbus.service.signal(_BUDDY_INTERFACE,
signature="ay")
def IconChanged(self, icon_data):
pass
@dbus.service.signal(_BUDDY_INTERFACE,
signature="o")
def JoinedActivity(self, activity_path):
pass
@dbus.service.signal(_BUDDY_INTERFACE,
signature="o")
def LeftActivity(self, activity_path):
pass
@dbus.service.signal(_BUDDY_INTERFACE,
signature="a{sv}")
def PropertyChanged(self, updated):
pass
# dbus methods
@dbus.service.method(_BUDDY_INTERFACE,
in_signature="", out_signature="ay")
def GetIcon(self):
icon = self.get_icon()
if not icon:
return ""
return icon
@dbus.service.method(_BUDDY_INTERFACE,
in_signature="", out_signature="ao")
def GetJoinedActivities(self):
acts = []
for act in self.get_joined_activities():
acts.append(act.object_path())
return acts
@dbus.service.method(_BUDDY_INTERFACE,
in_signature="", out_signature="a{sv}")
def GetProperties(self):
props = {}
props['name'] = self.get_name()
props['owner'] = self.is_owner()
props['key'] = self.get_key()
color = self.get_color()
if color:
props['color'] = color
return props
# methods
def object_path(self):
return dbus.ObjectPath(self._object_path)
def add_activity(self, activity):
actid = activity.get_id()
if self._activities.has_key(actid):
return
self._activities[actid] = activity
if activity.is_valid():
self.JoinedActivity(activity.object_path())
def remove_activity(self, activity):
actid = activity.get_id()
if not self._activities.has_key(actid):
return
del self._activities[actid]
if activity.is_valid():
self.LeftActivity(activity.object_path())
def get_joined_activities(self):
acts = []
for act in self._activities.values():
if act.is_valid():
acts.append(act)
return acts
def get_icon(self):
"""Return the buddies icon, if any."""
return self._icon
def get_name(self):
return self._nick_name
def get_color(self):
return self._color
def get_current_activity(self):
if not self._current_activity:
return None
if not self._activities.has_key(self._current_activity):
return None
return self._activities[self._current_activity]
def _set_icon(self, icon):
"""Can only set icon for other buddies. The Owner
takes care of setting it's own icon."""
if icon != self._icon:
self._icon = icon
self.IconChanged(icon)
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def _set_name(self, name):
self._nick_name = name
def _set_color(self, color):
self._color = color
def set_properties(self, prop):
if "name" in properties.keys():
self._set_name(properties["name"])
if "color" in properties.keys():
self._set_color(properties["color"])
self.PropertyChanged(properties)
def is_owner(self):
return False
def get_key(self):
return self._key
class Owner(Buddy):
"""Class representing the owner of the machine. This is the client
portion of the Owner, paired with the server portion in Owner.py."""
def __init__(self, ps, bus_name, object_id, icon_cache):
Buddy.__init__(self, bus_name, object_id, icon_cache)
self._ps = ps
self._nick_name = profile.get_nick_name()
self._color = profile.get_color().to_string()
self._key = profile.get_pubkey()
# dbus methods
@dbus.service.method(_OWNER_INTERFACE,
in_signature="ay", out_signature="")
def SetIcon(self, icon_data):
self.set_icon(icon_data)
@dbus.service.method(_OWNER_INTERFACE,
in_signature="a{sv}", out_signature="")
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def SetProperties(self, prop):
self.set_properties(self, prop)
# methods
def is_owner(self):
return True
def set_icon(self, icon):
self._icon = icon