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# Copyright (C) 2013 Sugar Labs
# Copyright (C) 2009 OLPC
# Author: Sayamindu Dasgupta <sayamindu@laptop.org>
#
# 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
#
from gi.repository import Xkl
from gi.repository import GConf
from gi.repository import SugarExt
import logging
_GROUP_NAME = 'grp' # The XKB name for group switch options
_LAYOUTS_KEY = '/desktop/sugar/peripherals/keyboard/layouts'
_OPTIONS_KEY = '/desktop/sugar/peripherals/keyboard/options'
_MODEL_KEY = '/desktop/sugar/peripherals/keyboard/model'
def _item_str(s):
'''Convert a zero-terminated byte array to a proper str'''
i = s.find(b'\x00')
return s[:i].decode("utf-8")
class KeyboardManager(object):
def __init__(self, display):
self._engine = Xkl.Engine.get_instance(display)
self._configregistry = Xkl.ConfigRegistry.get_instance(self._engine)
self._configregistry.load(False)
self._configrec = Xkl.ConfigRec()
self._configrec.get_from_server(self._engine)
self._gconf_client = GConf.Client.get_default()
def _populate_one(self, config_registry, item, store):
store.append([_item_str(item.description), _item_str(item.name)])
def _populate_two(self, config_registry, item, subitem, store):
layout = _item_str(item.name)
if subitem:
description = '%s, %s' % (_item_str(subitem.description),
_item_str(item.description))
variant = _item_str(subitem.name)
else:
description = 'Default layout, %s' % _item_str(item.description)
variant = ''
store.append([description, ('%s(%s)' % (layout, variant))])
def get_models(self):
"""Return list of supported keyboard models"""
models = []
self._configregistry.foreach_model(self._populate_one, models)
models.sort()
return models
def get_languages(self):
"""Return list of supported keyboard languages"""
languages = []
self._configregistry.foreach_language(self._populate_one, languages)
languages.sort()
return languages
def get_layouts_for_language(self, language):
"""Return list of supported keyboard layouts for a given language"""
layouts = []
self._configregistry.foreach_language_variant(language,
self._populate_two,
layouts)
layouts.sort()
return layouts
def get_options_group(self):
"""Return list of supported options for switching keyboard group"""
options = []
self._configregistry.foreach_option(_GROUP_NAME, self._populate_one,
options)
options.sort()
return options
def get_current_model(self):
"""Return the enabled keyboard model"""
model = self._gconf_client.get_string(_MODEL_KEY)
if not model:
model = self._configrec.model
self.set_model(model)
return model
def get_current_layouts(self):
"""Return the enabled keyboard layouts with variants"""
# FIXME, gconf_client_get_list not introspectable #681433
layouts_from_gconf = self._gconf_client.get(_LAYOUTS_KEY)
layouts = []
if layouts_from_gconf:
for gval in layouts_from_gconf.get_list():
layout = gval.get_string()
layouts.append(layout)
if layouts:
return layouts
layouts = self._configrec.layouts
variants = self._configrec.variants
layout_list = []
i = 0
for layout in layouts:
if len(variants) <= i or variants[i] == '':
layout_list.append('%s(%s)' % (layout, ''))
else:
layout_list.append('%s(%s)' % (layout, variants[i]))
i += 1
self.set_layouts(layout_list)
return layout_list
def get_current_option_group(self):
"""Return the enabled option for switching keyboard group"""
options = []
# FIXME, gconf_client_get_list not introspectable #681433
options_from_gconf = self._gconf_client.get(_OPTIONS_KEY)
if options_from_gconf:
for gval in options_from_gconf.get_list():
option = gval.get_string()
options.append(option)
if not options:
options = self._configrec.options
self.set_option_group(options)
for option in options:
if option.startswith(_GROUP_NAME):
return option
return None
def get_max_layouts(self):
"""Return the maximum number of layouts supported simultaneously"""
return self._engine.get_max_num_groups()
def set_model(self, model):
"""Sets the supplied keyboard model"""
if model is None or not model:
return
self._gconf_client.set_string(_MODEL_KEY, model)
self._configrec.set_model(model)
self._configrec.activate(self._engine)
def set_option_group(self, option_group):
"""Sets the supplied option for switching keyboard group"""
#XXX: Merge, not overwrite previous options
if not option_group:
options = ['']
elif isinstance(option_group, list):
options = option_group
else:
options = [option_group]
# FIXME, gconf_client_set_list not introspectable #681433
# self._gconf_client.set_list(_OPTIONS_KEY, GConf.ValueType.STRING,
# options)
SugarExt.gconf_client_set_string_list(self._gconf_client,
_OPTIONS_KEY, options)
self._configrec.set_options(options)
self._configrec.activate(self._engine)
def set_layouts(self, layouts):
"""Sets the supplied keyboard layouts (with variants)"""
if layouts is None or not layouts:
return
# FIXME, gconf_client_set_list not introspectable #681433
# self._gconf_client.set_list(_LAYOUTS_KEY, GConf.ValueType.STRING,
# layouts)
SugarExt.gconf_client_set_string_list(self._gconf_client,
_LAYOUTS_KEY, layouts)
layouts_list = []
variants_list = []
for layout in layouts:
layouts_list.append(layout.split('(')[0])
variants_list.append(layout.split('(')[1][:-1])
self._configrec.set_layouts(layouts_list)
self._configrec.set_variants(variants_list)
self._configrec.activate(self._engine)
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