You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
4.0 KiB
Python
119 lines
4.0 KiB
Python
# Copyright (C) 2007, One Laptop Per Child
|
|
#
|
|
# This library is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 2 of the License, or (at your option) any later version.
|
|
#
|
|
# This library 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
|
|
# Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with this library; if not, write to the
|
|
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
# Boston, MA 02111-1307, USA.
|
|
|
|
import logging
|
|
|
|
import gobject
|
|
import gtk
|
|
import dbus
|
|
|
|
from sugar.datastore import datastore
|
|
|
|
J_DBUS_SERVICE = 'org.laptop.Journal'
|
|
J_DBUS_INTERFACE = 'org.laptop.Journal'
|
|
J_DBUS_PATH = '/org/laptop/Journal'
|
|
|
|
class ObjectChooser(object):
|
|
def __init__(self, title=None, parent=None, flags=None, buttons=None):
|
|
# For backwards compatibility:
|
|
# - We ignore title, flags and buttons.
|
|
# - 'parent' can be a xid or a gtk.gdk.Window
|
|
|
|
if title is not None or flags is not None or buttons is not None:
|
|
logging.warning('Invocation of ObjectChooser() has deprecated '
|
|
'parameters.')
|
|
|
|
if parent is None:
|
|
parent_xid = 0
|
|
elif hasattr(parent, 'window') and hasattr(parent.window, 'xid'):
|
|
parent_xid = parent.window.xid
|
|
else:
|
|
parent_xid = parent
|
|
|
|
self._parent_xid = parent_xid
|
|
self._main_loop = None
|
|
self._object_id = None
|
|
self._bus = None
|
|
self._chooser_id = None
|
|
self._response_code = gtk.RESPONSE_NONE
|
|
|
|
def run(self):
|
|
self._object_id = None
|
|
|
|
self._main_loop = gobject.MainLoop()
|
|
|
|
self._bus = dbus.SessionBus(mainloop=self._main_loop)
|
|
self._bus.add_signal_receiver(
|
|
self.__name_owner_changed_cb,
|
|
signal_name="NameOwnerChanged",
|
|
dbus_interface="org.freedesktop.DBus",
|
|
arg0=J_DBUS_SERVICE)
|
|
|
|
obj = self._bus.get_object(J_DBUS_SERVICE, J_DBUS_PATH)
|
|
journal = dbus.Interface(obj, J_DBUS_INTERFACE)
|
|
journal.connect_to_signal('ObjectChooserResponse',
|
|
self.__chooser_response_cb)
|
|
journal.connect_to_signal('ObjectChooserCancelled',
|
|
self.__chooser_cancelled_cb)
|
|
self._chooser_id = journal.ChooseObject(self._parent_xid)
|
|
|
|
gtk.gdk.threads_leave()
|
|
try:
|
|
self._main_loop.run()
|
|
finally:
|
|
gtk.gdk.threads_enter()
|
|
self._main_loop = None
|
|
|
|
return self._response_code
|
|
|
|
def get_selected_object(self):
|
|
if self._object_id is None:
|
|
return None
|
|
else:
|
|
return datastore.get(self._object_id)
|
|
|
|
def destroy(self):
|
|
self._cleanup()
|
|
|
|
def _cleanup(self):
|
|
if self._main_loop is not None:
|
|
self._main_loop.quit()
|
|
self._main_loop = None
|
|
self._bus = None
|
|
|
|
def __chooser_response_cb(self, chooser_id, object_id):
|
|
if chooser_id != self._chooser_id:
|
|
return
|
|
logging.debug('ObjectChooser.__chooser_response_cb: %r' % object_id)
|
|
self._response_code = gtk.RESPONSE_ACCEPT
|
|
self._object_id = object_id
|
|
self._cleanup()
|
|
|
|
def __chooser_cancelled_cb(self, chooser_id):
|
|
if chooser_id != self._chooser_id:
|
|
return
|
|
logging.debug('ObjectChooser.__chooser_cancelled_cb: %r' % chooser_id)
|
|
self._response_code = gtk.RESPONSE_CANCEL
|
|
self._cleanup()
|
|
|
|
def __name_owner_changed_cb(self, name, old, new):
|
|
logging.debug('ObjectChooser.__name_owner_changed_cb')
|
|
# Journal service disappeared from the bus
|
|
self._response_code = gtk.RESPONSE_CANCEL
|
|
self._cleanup()
|
|
|