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# Copyright (C) 2008 Jimmy Do <jimmydo@users.sourceforge.net>
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from os import path
import mateconf
class AppletMateConfWrapper(object):
def __init__(self, applet, schema_path, standalone_key):
object.__init__(self)
self._connection_ids = []
self._client = mateconf.client_get_default()
# Get preferences key path for the given applet instance.
self._base_path = applet.get_preferences_key()
if self._base_path is not None:
# Apply the schema to the applet instance preferences key.
applet.add_preferences(schema_path)
else:
# NOTE: Don't need to apply schema here because the Timer Applet schema file
# already specifies that the schema be automatically applied to the standalone key.
self._base_path = standalone_key
# Applet would usually do this for us, but since we're running in standalone mode,
# we have to do this ourselves in order to receive MateConf change notifications.
self._client.add_dir(self._base_path, mateconf.CLIENT_PRELOAD_RECURSIVE)
print 'Base prefs path = %s' % self._base_path
def get_base_path(self):
return self._base_path
def add_notification(self, relative_key, callback, data=None):
"""Register for notifications of changes to the given preference key.
relative_key should be relative to the applet's base preferences key path.
callback should look like: callback(MateConfValue, data=None)
"""
connection_id = self._client.notify_add(self._get_full_path(relative_key),
self._notification_callback, (callback, data))
self._connection_ids.append(connection_id)
def get_string(self, relative_key):
return self._client.get_string(self._get_full_path(relative_key))
def get_bool(self, relative_key):
return self._client.get_bool(self._get_full_path(relative_key))
def set_string(self, relative_key, val):
self._client.set_string(self._get_full_path(relative_key), val)
def set_bool(self, relative_key, val):
self._client.set_bool(self._get_full_path(relative_key), val)
def delete(self):
for connection_id in self._connection_ids:
self._client.notify_remove(connection_id)
self._connection_ids = []
def _notification_callback(self, client, cnxn_id, entry, data=None):
(callback, real_data) = data
# mateconf_value is of type MateConfValue (mateconf.Value)
mateconf_value = entry.get_value()
# Ignore when mateconf_value is None because that
# means that the settings are being removed
# because the applet has been removed from
# the panel.
if mateconf_value != None:
callback(mateconf_value, real_data)
def _get_full_path(self, relative_key):
return path.join(self._base_path, relative_key)
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