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

397 lines
13 KiB
Python

# 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 os
import gobject
import dbus, dbus.service
from sugar import profile
from sugar import env
_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 DBusGObjectMetaclass(gobject.GObjectMeta, dbus.service.InterfaceType): pass
class DBusGObject(dbus.service.Object, gobject.GObject): __metaclass__ = DBusGObjectMetaclass
class Buddy(DBusGObject):
"""Represents another person on the network and keeps track of the
activities and resources they make available for sharing."""
__gtype_name__ = "Buddy"
__gsignals__ = {
'validity-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_BOOLEAN])),
'property-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT])),
'icon-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT]))
}
__gproperties__ = {
'key' : (str, None, None, None,
gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT_ONLY),
'icon' : (object, None, None, gobject.PARAM_READWRITE),
'nick' : (str, None, None, None, gobject.PARAM_READWRITE),
'color' : (str, None, None, None, gobject.PARAM_READWRITE),
'current-activity' : (str, None, None, None, gobject.PARAM_READWRITE),
'valid' : (bool, None, None, False, gobject.PARAM_READABLE),
'owner' : (bool, None, None, False, gobject.PARAM_READABLE)
}
def __init__(self, bus_name, object_id, **kwargs):
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.handles = {} # tp client -> handle
self._valid = False
self._owner = False
self._key = None
self._icon = ''
self._current_activity = None
self._nick = None
self._color = None
if not kwargs.get("key"):
raise ValueError("key required")
gobject.GObject.__init__(self, **kwargs)
def do_get_property(self, pspec):
if pspec.name == "key":
return self._key
elif pspec.name == "icon":
return self._icon
elif pspec.name == "nick":
return self._nick
elif pspec.name == "color":
return self._color
elif pspec.name == "current-activity":
if not self._current_activity:
return None
if not self._activities.has_key(self._current_activity):
return None
return self._current_activity
elif pspec.name == "valid":
return self._valid
elif pspec.name == "owner":
return self._owner
def do_set_property(self, pspec, value):
if pspec.name == "icon":
if str(value) != self._icon:
self._icon = str(value)
self.IconChanged(self._icon)
self.emit('icon-changed', self._icon)
elif pspec.name == "nick":
self._nick = value
elif pspec.name == "color":
self._color = value
elif pspec.name == "current-activity":
self._current_activity = value
elif pspec.name == "key":
self._key = value
self._update_validity()
# 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):
if not self.props.icon:
return ""
return dbus.ByteArray(self.props.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['nick'] = self.props.nick
props['owner'] = self.props.owner
props['key'] = self.props.key
props['color'] = self.props.color
return props
# methods
def object_path(self):
return dbus.ObjectPath(self._object_path)
def add_activity(self, activity):
actid = activity.props.id
if self._activities.has_key(actid):
return
self._activities[actid] = activity
if activity.props.valid:
self.JoinedActivity(activity.object_path())
def remove_activity(self, activity):
actid = activity.props.id
if not self._activities.has_key(actid):
return
del self._activities[actid]
if activity.props.valid:
self.LeftActivity(activity.object_path())
def get_joined_activities(self):
acts = []
for act in self._activities.values():
if act.props.valid:
acts.append(act)
return acts
def set_properties(self, properties):
changed = False
if "nick" in properties.keys():
nick = properties["nick"]
if nick != self._nick:
self._nick = nick
changed = True
if "color" in properties.keys():
color = properties["color"]
if color != self._color:
self._color = color
changed = True
if "current-activity" in properties.keys():
curact = properties["current-activity"]
if curact != self._current_activity:
self._current_activity = curact
changed = True
if not changed:
return
# Try emitting PropertyChanged before updating validity
# to avoid leaking a PropertyChanged signal before the buddy is
# actually valid the first time after creation
if self._valid:
self.PropertyChanged(properties)
self.emit('property-changed', properties)
self._update_validity()
def _update_validity(self):
try:
old_valid = self._valid
if self._color and self._nick and self._key:
self._valid = True
else:
self._valid = False
if old_valid != self._valid:
self.emit("validity-changed", self._valid)
except AttributeError:
self._valid = False
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."""
_SHELL_SERVICE = "org.laptop.Shell"
_SHELL_OWNER_INTERFACE = "org.laptop.Shell.Owner"
_SHELL_PATH = "/org/laptop/Shell"
def __init__(self, bus_name, object_id):
key = profile.get_pubkey()
nick = profile.get_nick_name()
color = profile.get_color().to_string()
icon_file = os.path.join(env.get_profile_path(), "buddy-icon.jpg")
f = open(icon_file, "r")
icon = f.read()
f.close()
self._bus = dbus.SessionBus()
self._bus.add_signal_receiver(self._name_owner_changed_handler,
signal_name="NameOwnerChanged",
dbus_interface="org.freedesktop.DBus")
# Connect to the shell to get notifications on Owner object
# property changes
try:
self._connect_to_shell()
except dbus.DBusException:
pass
Buddy.__init__(self, bus_name, object_id, key=key, nick=nick, color=color,
icon=icon)
self._owner = True
# enable this to change random buddy properties
if False:
gobject.timeout_add(5000, self._update_something)
def _update_something(self):
import random
it = random.randint(0, 3)
if it == 0:
data = get_random_image()
self._icon_changed_cb(data)
elif it == 1:
from sugar.graphics import xocolor
xo = xocolor.XoColor()
self._color_changed_cb(xo.to_string())
elif it == 2:
names = ["Liam", "Noel", "Guigsy", "Whitey", "Bonehead"]
foo = random.randint(0, len(names) - 1)
self._nick_changed_cb(names[foo])
elif it == 3:
bork = random.randint(25, 65)
it = ""
for i in range(0, bork):
it += chr(random.randint(40, 127))
from sugar import util
self._cur_activity_changed_cb(util.unique_id(it))
return True
def _name_owner_changed_handler(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):
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):
self.props.icon = icon
def _color_changed_cb(self, color):
props = {'color': color}
self.set_properties(props)
def _nick_changed_cb(self, nick):
props = {'nick': nick}
self.set_properties(props)
def _cur_activity_changed_cb(self, activity_id):
if not self._activities.has_key(activity_id):
# This activity is local-only
activity_id = None
props = {'current-activity': activity_id}
self.set_properties(props)
def get_random_image():
import cairo, math, random, gtk
def rand():
return random.random()
SIZE = 200
s = cairo.ImageSurface(cairo.FORMAT_ARGB32, SIZE, SIZE)
cr = cairo.Context(s)
# background gradient
cr.save()
g = cairo.LinearGradient(0, 0, 1, 1)
g.add_color_stop_rgba(1, rand(), rand(), rand(), rand())
g.add_color_stop_rgba(0, rand(), rand(), rand(), rand())
cr.set_source(g)
cr.rectangle(0, 0, SIZE, SIZE);
cr.fill()
cr.restore()
# random path
cr.set_line_width(10 * rand() + 5)
cr.move_to(SIZE * rand(), SIZE * rand())
cr.line_to(SIZE * rand(), SIZE * rand())
cr.rel_line_to(SIZE * rand() * -1, 0)
cr.close_path()
cr.stroke()
# a circle
cr.set_source_rgba(rand(), rand(), rand(), rand())
cr.arc(SIZE * rand(), SIZE * rand(), 100 * rand() + 30, 0, 2 * math.pi)
cr.fill()
# another circle
cr.set_source_rgba(rand(), rand(), rand(), rand())
cr.arc(SIZE * rand(), SIZE * rand(), 100 * rand() + 30, 0, 2 * math.pi)
cr.fill()
def img_convert_func(buf, data):
data[0] += buf
return True
data = [""]
pixbuf = gtk.gdk.pixbuf_new_from_data(s.get_data(), gtk.gdk.COLORSPACE_RGB,
True, 8, s.get_width(), s.get_height(), s.get_stride())
pixbuf.save_to_callback(img_convert_func, "jpeg", {"quality": "90"}, data)
del pixbuf
return str(data[0])