module JsLocaleHelper def self.plugin_client_files(locale_str) Dir["#{Rails.root}/plugins/*/config/locales/client.#{locale_str}.yml"] end def self.reloadable_plugins(locale, ctx) return unless Rails.env.development? plugin_client_files(locale.to_s).each do |file| ctx.depend_on(file) end end def self.plugin_translations(locale_str) @plugin_translations ||= HashWithIndifferentAccess.new @plugin_translations[locale_str] ||= begin translations = {} plugin_client_files(locale_str).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) @loaded_translations ||= HashWithIndifferentAccess.new @loaded_translations[locale] ||= begin locale_str = locale.to_s # load default translations yml_file = "#{Rails.root}/config/locales/client.#{locale_str}.yml" if File.exist?(yml_file) translations = YAML.load_file(yml_file) else # If we can't find a base file in Discourse, it might only exist in a plugin # so let's start with a basic object we can merge into translations = { locale_str => { 'js' => {}, 'admin_js' => {}, 'wizard_js' => {} } } end # merge translations (plugin translations overwrite default translations) if translations[locale_str] && plugin_translations(locale_str) translations[locale_str]['js'] ||= {} translations[locale_str]['admin_js'] ||= {} translations[locale_str]['wizard_js'] ||= {} translations[locale_str]['js'].deep_merge!(plugin_translations(locale_str)['js']) if plugin_translations(locale_str)['js'] translations[locale_str]['admin_js'].deep_merge!(plugin_translations(locale_str)['admin_js']) if plugin_translations(locale_str)['admin_js'] translations[locale_str]['wizard_js'].deep_merge!(plugin_translations(locale_str)['wizard_js']) if plugin_translations(locale_str)['wizard_js'] end 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) locales = locales.uniq.compact @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 fallback_locale = LocaleSiteSetting.fallback_locale(locale_str) I18n.locale = locale_sym if Rails.env.development? @loaded_translations = nil @plugin_translations = nil @loaded_merges = nil end translations = if locale_sym == :en load_translations(locale_sym) elsif locale_sym == site_locale || site_locale == :en load_translations_merged(locale_sym, fallback_locale, :en) else load_translations_merged(locale_sym, fallback_locale, site_locale, :en) end I18n.locale = current_locale translations end def self.output_locale(locale) locale_str = locale.to_s fallback_locale_str = LocaleSiteSetting.fallback_locale(locale_str)&.to_s translations = Marshal.load(Marshal.dump(translations_for(locale_str))) message_formats = strip_out_message_formats!(translations[locale_str]['js']) message_formats.merge!(strip_out_message_formats!(translations[locale_str]['admin_js'])) mf_locale, mf_filename = find_message_format_locale([locale_str], fallback_to_english: true) result = generate_message_format(message_formats, mf_locale, mf_filename) translations.keys.each do |l| translations[l].keys.each do |k| translations[l].delete(k) unless k == "js" end end # I18n result << "I18n.translations = #{translations.to_json};\n" result << "I18n.locale = '#{locale_str}';\n" result << "I18n.fallbackLocale = '#{fallback_locale_str}';\n" if fallback_locale_str && fallback_locale_str != "en" result << "I18n.pluralizationRules.#{locale_str} = MessageFormat.locale.#{mf_locale};\n" if mf_locale != "en" # moment result << File.read("#{Rails.root}/vendor/assets/javascripts/moment.js") result << File.read("#{Rails.root}/vendor/assets/javascripts/moment-timezone-with-data.js") result << moment_locale(locale_str) result << moment_locale(locale_str, timezone_names: true) result << moment_formats result end def self.find_moment_locale(locale_chain, timezone_names: false) if timezone_names path = "#{Rails.root}/vendor/assets/javascripts/moment-timezone-names-locale" type = :moment_js_timezones else path = "#{Rails.root}/vendor/assets/javascripts/moment-locale" type = :moment_js end find_locale(locale_chain, path, type, fallback_to_english: false) do |locale| # moment.js uses a different naming scheme for locale files locale.tr('_', '-').downcase end end def self.find_message_format_locale(locale_chain, fallback_to_english:) path = "#{Rails.root}/lib/javascripts/locale" find_locale(locale_chain, path, :message_format, fallback_to_english: fallback_to_english) end def self.find_locale(locale_chain, path, type, fallback_to_english:) locale_chain.each do |locale| plugin_locale = DiscoursePluginRegistry.locales[locale] return plugin_locale[type] if plugin_locale&.has_key?(type) locale = yield(locale) if block_given? filename = File.join(path, "#{locale}.js") return [locale, filename] if File.exist?(filename) end locale_chain.map! { |locale| yield(locale) } if block_given? # try again, but this time only with the language itself locale_chain = locale_chain.map { |l| l.split(/[-_]/)[0] } .uniq.reject { |l| locale_chain.include?(l) } if locale_chain.any? locale_data = find_locale(locale_chain, path, type, fallback_to_english: false) return locale_data if locale_data end # English should alyways work ["en", File.join(path, "en.js")] if fallback_to_english 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, timezone_names: false) _, filename = find_moment_locale([locale], timezone_names: timezone_names) filename && File.exist?(filename) ? File.read(filename) << "\n" : "" end def self.generate_message_format(message_formats, locale, filename) formats = message_formats.map { |k, v| k.inspect << " : " << compile_message_format(filename, locale, v) }.join(", ") 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&.dispose @ctx = nil end @mutex = Mutex.new def self.with_context @mutex.synchronize do yield @ctx ||= begin ctx = MiniRacer::Context.new(timeout: 15000) ctx.load("#{Rails.root}/lib/javascripts/messageformat.js") ctx end end end def self.compile_message_format(path, locale, format) with_context do |ctx| ctx.load(path) if File.exist?(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