241 lines
8.2 KiB
Python
241 lines
8.2 KiB
Python
# Copyright (C) 2007, Red Hat, Inc.
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# Copyright (C) 2007, Collabora Ltd.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import gobject
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import dbus, dbus.service
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from sugar import profile
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_BUDDY_PATH = "/org/laptop/Sugar/Presence/Buddies/"
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_BUDDY_INTERFACE = "org.laptop.Sugar.Presence.Buddy"
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_OWNER_INTERFACE = "org.laptop.Sugar.Presence.Buddy.Owner"
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class NotFoundError(dbus.DBusException):
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def __init__(self):
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dbus.DBusException.__init__(self)
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self._dbus_error_name = _PRESENCE_INTERFACE + '.NotFound'
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class DBusGObjectMetaclass(gobject.GObjectMeta, dbus.service.InterfaceType): pass
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class DBusGObject(dbus.service.Object, gobject.GObject): __metaclass__ = DBusGObjectMetaclass
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class Buddy(DBusGObject):
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"""Represents another person on the network and keeps track of the
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activities and resources they make available for sharing."""
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__gtype_name__ = "Buddy"
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__gsignals__ = {
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'validity-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_BOOLEAN]))
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}
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__gproperties__ = {
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'key' : (str, None, None, None,
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gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT_ONLY),
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'icon' : (str, None, None, None, gobject.PARAM_READWRITE),
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'nick' : (str, None, None, None, gobject.PARAM_READWRITE),
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'color' : (str, None, None, None, gobject.PARAM_READWRITE),
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'current-activity' : (str, None, None, None, gobject.PARAM_READWRITE),
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'valid' : (bool, None, None, False, gobject.PARAM_READABLE),
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'owner' : (bool, None, None, False, gobject.PARAM_READABLE)
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}
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def __init__(self, bus_name, object_id, **kwargs):
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if not bus_name:
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raise ValueError("DBus bus name must be valid")
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if not object_id or not isinstance(object_id, int):
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raise ValueError("object id must be a valid number")
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self._bus_name = bus_name
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self._object_id = object_id
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self._object_path = _BUDDY_PATH + str(self._object_id)
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dbus.service.Object.__init__(self, self._bus_name, self._object_path)
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self._activities = {} # Activity ID -> Activity
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self.handles = {} # tp client -> handle
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self._valid = False
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self._owner = False
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self._key = None
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gobject.GObject.__init__(self, **kwargs)
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if not self._key:
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raise RuntimeError("public key required")
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def do_get_property(self, pspec):
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if pspec.name == "key":
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return self._key
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elif pspec.name == "icon":
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return self._icon
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elif pspec.name == "nick":
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return self._nick
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elif pspec.name == "color":
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return self._color
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elif pspec.name == "current-activity":
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if not self._current_activity:
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return None
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if not self._activities.has_key(self._current_activity):
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return None
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return self._activities[self._current_activity]
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elif pspec.name == "valid":
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return self._valid
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elif pspec.name == "owner":
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return self._owner
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def do_set_property(self, pspec, value):
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if pspec.name == "icon":
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if value != self._icon:
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self._icon = value
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self.IconChanged(value)
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elif pspec.name == "nick":
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self._nick = value
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elif pspec.name == "color":
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self._color = value
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elif pspec.name == "current-activity":
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self._current_activity = value
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elif pspec.name == "key":
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if self._key:
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raise RuntimeError("key already set")
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self._key = value
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self._update_validity()
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# dbus signals
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="ay")
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def IconChanged(self, icon_data):
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pass
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="o")
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def JoinedActivity(self, activity_path):
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pass
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="o")
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def LeftActivity(self, activity_path):
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pass
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="a{sv}")
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def PropertyChanged(self, updated):
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pass
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# dbus methods
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@dbus.service.method(_BUDDY_INTERFACE,
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in_signature="", out_signature="ay")
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def GetIcon(self):
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if not self.props.icon:
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return ""
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return dbus.ByteArray(self.props.icon)
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@dbus.service.method(_BUDDY_INTERFACE,
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in_signature="", out_signature="ao")
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def GetJoinedActivities(self):
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acts = []
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for act in self.get_joined_activities():
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acts.append(act.object_path())
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return acts
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@dbus.service.method(_BUDDY_INTERFACE,
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in_signature="", out_signature="a{sv}")
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def GetProperties(self):
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props = {}
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props['nick'] = self.props.nick
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props['owner'] = self.props.owner
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props['key'] = self.props.key
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props['color'] = self.props.color
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return props
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# methods
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def object_path(self):
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return dbus.ObjectPath(self._object_path)
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def add_activity(self, activity):
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actid = activity.get_id()
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if self._activities.has_key(actid):
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return
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self._activities[actid] = activity
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if activity.is_valid():
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self.JoinedActivity(activity.object_path())
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def remove_activity(self, activity):
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actid = activity.get_id()
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if not self._activities.has_key(actid):
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return
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del self._activities[actid]
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if activity.is_valid():
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self.LeftActivity(activity.object_path())
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def get_joined_activities(self):
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acts = []
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for act in self._activities.values():
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if act.is_valid():
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acts.append(act)
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return acts
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def set_properties(self, properties):
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if "nick" in properties.keys():
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self._nick = properties["nick"]
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if "color" in properties.keys():
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self._color = properties["color"]
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# Try emitting PropertyChanged before updating validity
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# to avoid leaking a PropertyChanged signal before the buddy is
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# actually valid the first time after creation
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if self._valid:
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self.PropertyChanged(properties)
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self._update_validity()
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def _update_validity(self):
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try:
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old_valid = self._valid
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if self._color and self._nick and self._key:
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self._valid = True
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else:
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self._valid = False
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if old_valid != self._valid:
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self.emit("validity-changed", self._valid)
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except AttributeError:
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self._valid = False
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class Owner(Buddy):
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"""Class representing the owner of the machine. This is the client
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portion of the Owner, paired with the server portion in Owner.py."""
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def __init__(self, bus_name, object_id):
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key = profile.get_pubkey()
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nick = profile.get_nick_name()
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color = profile.get_color().to_string()
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Buddy.__init__(self, bus_name, object_id, key=key, nick=nick, color=color)
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self._owner = True
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# dbus methods
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@dbus.service.method(_OWNER_INTERFACE,
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in_signature="ay", out_signature="")
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def SetIcon(self, icon_data):
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self.props.icon = icon_data
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@dbus.service.method(_OWNER_INTERFACE,
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in_signature="a{sv}", out_signature="")
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def SetProperties(self, prop):
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self.set_properties(self, prop)
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