Project

General

Profile

Download (4.14 KB) Statistics
| Branch: | Tag: | Revision:

root/lib/cyborghood/base/language.rb @ 0c8e424e

eb6e0359 Marc Dequènes (Duck)
#--
# CyborgHood, a distributed system management software.
364e4a96 Marc Dequènes (Duck)
# Copyright (c) 2009-2011 Marc Dequènes (Duck) <Duck@DuckCorp.org>
eb6e0359 Marc Dequènes (Duck)
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
#++

require 'singleton'
require 'gettext'
51546fe5 Marc Dequènes (Duck)
require 'http_headers'
eb6e0359 Marc Dequènes (Duck)

module CyborgHood
ed09e1e5 Marc Dequènes (Duck)
class I18nController
eb6e0359 Marc Dequènes (Duck)
include Singleton
include GetText

4c969e21 Marc Dequènes (Duck)
DEFAULT_LOCALE = "en"

eb6e0359 Marc Dequènes (Duck)
def initialize
@config = Config.instance
51546fe5 Marc Dequènes (Duck)
@available_locales = nil
@prefs_to_locale_cache = {}
@translate_mutex = Mutex.new
eb6e0359 Marc Dequènes (Duck)
end

eab8e5a0 Marc Dequènes (Duck)
def available_locales
51546fe5 Marc Dequènes (Duck)
return @available_locales if @available_locales

45139df9 Marc Dequènes (Duck)
list = ['en'] + Dir.new(Config::L10N_DIR).select{|d| File.directory?(File.join(Config::L10N_DIR, d)) and d[0..0] != "." }
eab8e5a0 Marc Dequènes (Duck)
# local admin can restrict available locales
eb6e0359 Marc Dequènes (Duck)
# (may be useful if l10n is partial due to third party plugins)
eab8e5a0 Marc Dequènes (Duck)
list = list & @config.i18n.restricted_locale_set if @config.i18n.restricted_locale_set
eb6e0359 Marc Dequènes (Duck)
list = ['en'] if list.empty?
51546fe5 Marc Dequènes (Duck)
@available_locales = list
eb6e0359 Marc Dequènes (Duck)
end

eab8e5a0 Marc Dequènes (Duck)
def set_locale(locale)
51546fe5 Marc Dequènes (Duck)
if locale
set_locale_all(locale)
else
set_default_locale
end
eb6e0359 Marc Dequènes (Duck)
end

eab8e5a0 Marc Dequènes (Duck)
def set_default_locale
4c969e21 Marc Dequènes (Duck)
set_locale(DEFAULT_LOCALE)
eb6e0359 Marc Dequènes (Duck)
end

51546fe5 Marc Dequènes (Duck)
def locale_from_prefs(preferred_locales)
0c8e424e Marc Dequènes (Duck)
return DEFAULT_LOCALE if preferred_locales.nil?

51546fe5 Marc Dequènes (Duck)
locale = @prefs_to_locale_cache[preferred_locales]
return locale if locale

lang_chooser = HTTPHeaders::AcceptLanguage.parse(preferred_locales)
if lang_chooser
ordered_list = lang_chooser.reduce(available_locales)
locale = ordered_list.empty? ? DEFAULT_LOCALE : ordered_list.first.range
@prefs_to_locale_cache[preferred_locales] = locale
eb6e0359 Marc Dequènes (Duck)
else
51546fe5 Marc Dequènes (Duck)
# notify the preferred_locales string is not a valid RFC2616 Accept-Language value
nil
eb6e0359 Marc Dequènes (Duck)
end
end

51546fe5 Marc Dequènes (Duck)
def translate(message, preferred_locales)
locale = locale_from_prefs(preferred_locales)
eb6e0359 Marc Dequènes (Duck)
51546fe5 Marc Dequènes (Duck)
@translate_mutex.synchronize do
set_locale(locale)
message.to_s
end
eb6e0359 Marc Dequènes (Duck)
end
end

ed09e1e5 Marc Dequènes (Duck)
module I18nTranslation
eb6e0359 Marc Dequènes (Duck)
def self.included(base)
base.class_eval("include GetText")

# translation methods needs to be available at class level too
base.extend(self)
end
include GetText

alias :_orig :_
def _(message, parts = {})
7c30a804 Marc Dequènes (Duck)
create_tm(message, parts, :_orig)
eb6e0359 Marc Dequènes (Duck)
end

alias :n_orig :n_
def n_(message, parts = {})
7c30a804 Marc Dequènes (Duck)
create_tm(message, parts, :n_orig)
eb6e0359 Marc Dequènes (Duck)
end

alias :s_orig :s_
def s_(message, parts = {})
7c30a804 Marc Dequènes (Duck)
create_tm(message, parts, :s_orig)
eb6e0359 Marc Dequènes (Duck)
end

alias :ns_orig :ns_
def ns_(message, parts = {})
7c30a804 Marc Dequènes (Duck)
create_tm(message, parts, :ns_orig)
eb6e0359 Marc Dequènes (Duck)
end

alias :np_orig :np_
def np_(message, parts = {})
7c30a804 Marc Dequènes (Duck)
create_tm(message, parts, :np_orig)
eb6e0359 Marc Dequènes (Duck)
end

7c30a804 Marc Dequènes (Duck)
def tm_(message, parts = {})
create_tm(message, parts)
end

def create_tm(message, parts, method = nil)
0c8e424e Marc Dequènes (Duck)
I18nMessage.new(message, parts, self, method)
eb6e0359 Marc Dequènes (Duck)
end

module_function :_, :n_, :s_, :ns_, :np_
end
51546fe5 Marc Dequènes (Duck)
class I18nMessage
include I18nTranslation

0c8e424e Marc Dequènes (Duck)
attr_reader :untranslated, :parts
51546fe5 Marc Dequènes (Duck)
0c8e424e Marc Dequènes (Duck)
def initialize(untranslated, parts, context, method)
51546fe5 Marc Dequènes (Duck)
@untranslated = untranslated % parts
@parts = parts
0c8e424e Marc Dequènes (Duck)
@context = context
51546fe5 Marc Dequènes (Duck)
@method = method
end

def to_s
0c8e424e Marc Dequènes (Duck)
ch_i18n_msg_method, ch_i18n_msg_untranslated, ch_i18n_msg_parts = @method, @untranslated, @parts
@context.instance_eval do
send(ch_i18n_msg_method, ch_i18n_msg_untranslated) % ch_i18n_msg_parts
end
51546fe5 Marc Dequènes (Duck)
end

def translate(preferred_locales)
I18nController.instance.translate(self, preferred_locales)
end
end
eb6e0359 Marc Dequènes (Duck)
end