module JsLocaleHelper def self.plugin_translations(locale_str) @plugin_translations ||= HashWithIndifferentAccess.new @plugin_translations[locale_str] ||= begin translations = {} Dir["#{Rails.root}/plugins/*/config/locales/client.#{locale_str}.yml"].each do |file| if plugin_translations = YAML.load_file(file)[locale_str] translations.deep_merge!(plugin_translations) end end translations end end def self.load_translations(locale, opts=nil) opts ||= {} @loaded_translations = nil if opts[:force] @loaded_translations ||= HashWithIndifferentAccess.new @loaded_translations[locale] ||= begin locale_str = locale.to_s # load default translations translations = YAML.load_file("#{Rails.root}/config/locales/client.#{locale_str}.yml") # merge translations (plugin translations overwrite default translations) translations[locale_str]['js'].deep_merge!(plugin_translations(locale_str)['js']) if translations[locale_str] && plugin_translations(locale_str) && plugin_translations(locale_str)['js'] translations end end # deeply removes keys from "deleting_from" that are already present in "checking_hashes" def self.deep_delete_matches(deleting_from, checking_hashes) checking_hashes.compact! new_hash = deleting_from.dup deleting_from.each do |key, value| if value.is_a?(Hash) new_at_key = deep_delete_matches(deleting_from[key], checking_hashes.map { |h| h[key] }) if new_at_key.empty? new_hash.delete(key) else new_hash[key] = new_at_key end else if checking_hashes.any? { |h| h.include?(key) } new_hash.delete(key) end end end new_hash end def self.load_translations_merged(*locales) @loaded_merges ||= {} @loaded_merges[locales.join('-')] ||= begin all_translations = {} merged_translations = {} loaded_locales = [] locales.map(&:to_s).each do |locale| all_translations[locale] = load_translations(locale) merged_translations[locale] = deep_delete_matches(all_translations[locale][locale], loaded_locales.map { |l| merged_translations[l] }) loaded_locales << locale end merged_translations end end def self.translations_for(locale_str) current_locale = I18n.locale locale_sym = locale_str.to_sym site_locale = SiteSetting.default_locale.to_sym I18n.locale = locale_sym translations = if Rails.env.development? load_translations(locale_sym, force: true) elsif locale_sym == :en load_translations(locale_sym) elsif locale_sym == site_locale || site_locale == :en load_translations_merged(locale_sym, :en) else load_translations_merged(locale_sym, site_locale, :en) end I18n.locale = current_locale translations end def self.output_locale(locale) locale_str = locale.to_s translations = Marshal.load(Marshal.dump(translations_for(locale_str))) translations.keys.each do |locale| translations[locale].keys.each do |k| translations[locale].delete(k) unless k == "js" end end message_formats = strip_out_message_formats!(translations[locale_str]['js']) result = generate_message_format(message_formats, locale_str) # I18n result << "I18n.translations = #{translations.to_json};\n" result << "I18n.locale = '#{locale_str}';\n" result << "I18n.pluralizationRules.#{locale_str} = MessageFormat.locale.#{locale_str};\n" if locale_str != "en" # moment result << File.read("#{Rails.root}/lib/javascripts/moment.js") result << moment_locale(locale_str) result << moment_formats result end def self.moment_formats result = "" result << moment_format_function('short_date_no_year') result << moment_format_function('short_date') result << moment_format_function('long_date') result << "moment.fn.relativeAge = function(opts){ return Discourse.Formatter.relativeAge(this.toDate(), opts)};\n" end def self.moment_format_function(name) format = I18n.t("dates.#{name}") "moment.fn.#{name.camelize(:lower)} = function(){ return this.format('#{format}'); };\n" end def self.moment_locale(locale_str) # moment.js uses a different naming scheme for locale files locale_str = locale_str.tr('_', '-').downcase filename = "#{Rails.root}/lib/javascripts/moment_locale/#{locale_str}.js" # try the language without the territory locale_str = locale_str.split("-")[0] filename = "#{Rails.root}/lib/javascripts/moment_locale/#{locale_str}.js" unless File.exists?(filename) File.exists?(filename) ? File.read(filename) << "\n" : "" end def self.generate_message_format(message_formats, locale_str) formats = message_formats.map { |k,v| k.inspect << " : " << compile_message_format(locale_str, v) }.join(", ") filename = "#{Rails.root}/lib/javascripts/locale/#{locale_str}.js" filename = "#{Rails.root}/lib/javascripts/locale/en.js" unless File.exists?(filename) result = "MessageFormat = {locale: {}};\n" result << "I18n._compiledMFs = {#{formats}};\n" result << File.read(filename) << "\n" result << File.read("#{Rails.root}/lib/javascripts/messageformat-lookup.js") << "\n" end def self.reset_context @ctx = nil end @mutex = Mutex.new def self.with_context @mutex.synchronize do yield @ctx ||= begin ctx = MiniRacer::Context.new ctx.load("#{Rails.root}/lib/javascripts/messageformat.js") ctx end end end def self.compile_message_format(locale, format) with_context do |ctx| path = "#{Rails.root}/lib/javascripts/locale/#{locale}.js" ctx.load(path) if File.exists?(path) ctx.eval("mf = new MessageFormat('#{locale}');") ctx.eval("mf.precompile(mf.parse(#{format.inspect}))") end rescue MiniRacer::EvalError => e message = "Invalid Format: " << e.message "function(){ return #{message.inspect};}" end def self.strip_out_message_formats!(hash, prefix = "", rval = {}) if hash.is_a?(Hash) hash.each do |key, value| if value.is_a?(Hash) rval.merge!(strip_out_message_formats!(value, prefix + (prefix.length > 0 ? "." : "") << key, rval)) elsif key.to_s.end_with?("_MF") rval[prefix + (prefix.length > 0 ? "." : "") << key] = value hash.delete(key) end end end rval end end