119 lines
4.3 KiB
Ruby
119 lines
4.3 KiB
Ruby
module JsLocaleHelper
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def self.output_locale(locale, translations = nil)
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current_locale = I18n.locale
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I18n.locale = locale.to_sym
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locale_str = locale.to_s
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# load default translations
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translations ||= YAML::load(File.open("#{Rails.root}/config/locales/client.#{locale_str}.yml"))
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# load plugins translations
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plugin_translations = {}
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Dir["#{Rails.root}/plugins/*/config/locales/client.#{locale_str}.yml"].each do |file|
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plugin_translations.deep_merge! YAML::load(File.open(file))
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end
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# merge translations (plugin translations overwrite default translations)
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translations[locale_str]['js'].deep_merge!(plugin_translations[locale_str]['js']) if translations[locale_str] && plugin_translations[locale_str] && plugin_translations[locale_str]['js']
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# We used to split the admin versus the client side, but it's much simpler to just
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# include both for now due to the small size of the admin section.
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#
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# For now, let's leave it split out in the translation file in case we want to split
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# it again later, so we'll merge the JSON ourselves.
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admin_contents = translations[locale_str].delete('admin_js')
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translations[locale_str]['js'].merge!(admin_contents) if admin_contents.present?
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translations[locale_str]['js'].deep_merge!(plugin_translations[locale_str]['admin_js']) if translations[locale_str] && plugin_translations[locale_str] && plugin_translations[locale_str]['admin_js']
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message_formats = strip_out_message_formats!(translations[locale_str]['js'])
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result = generate_message_format(message_formats, locale_str)
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result << "I18n.translations = #{translations.to_json};\n"
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result << "I18n.locale = '#{locale_str}';\n"
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# loading moment here cause we must customize it
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result << File.read("#{Rails.root}/lib/javascripts/moment.js")
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result << moment_locale(locale_str)
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result << moment_formats
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I18n.locale = current_locale
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result
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end
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def self.moment_formats
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result = ""
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result << moment_format_function('short_date_no_year')
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result << moment_format_function('short_date')
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result << moment_format_function('long_date')
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result << "moment.fn.relativeAge = function(opts){ return Discourse.Formatter.relativeAge(this.toDate(), opts)};\n"
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end
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def self.moment_format_function(name)
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format = I18n.t("dates.#{name}")
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result = "moment.fn.#{name.camelize(:lower)} = function(){ return this.format('#{format}'); };\n"
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end
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def self.moment_locale(locale_str)
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filename = Rails.root + "lib/javascripts/moment_locale/#{locale_str}.js"
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if File.exists?(filename)
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File.read(filename) << "\n"
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end || ""
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end
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def self.generate_message_format(message_formats, locale_str)
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formats = message_formats.map{|k,v| k.inspect << " : " << compile_message_format(locale_str ,v)}.join(" , ")
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result = "MessageFormat = {locale: {}};\n"
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filename = Rails.root + "lib/javascripts/locale/#{locale_str}.js"
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filename = Rails.root + "lib/javascripts/locale/en.js" unless File.exists?(filename)
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result << File.read(filename) << "\n"
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result << "I18n.messageFormat = (function(formats){
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var f = formats;
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return function(key, options) {
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var fn = f[key];
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if(fn){
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try {
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return fn(options);
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} catch(err) {
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return err.message;
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}
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} else {
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return 'Missing Key: ' + key
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}
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return f[key](options);
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};
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})({#{formats}});"
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end
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def self.compile_message_format(locale, format)
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ctx = V8::Context.new
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ctx.load(Rails.root + 'lib/javascripts/messageformat.js')
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path = Rails.root + "lib/javascripts/locale/#{locale}.js"
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ctx.load(path) if File.exists?(path)
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ctx.eval("mf = new MessageFormat('#{locale}');")
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ctx.eval("mf.precompile(mf.parse(#{format.inspect}))")
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rescue V8::Error => e
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message = "Invalid Format: " << e.message
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"function(){ return #{message.inspect};}"
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end
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def self.strip_out_message_formats!(hash, prefix = "", rval = {})
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if hash.is_a?(Hash)
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hash.each do |key, value|
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if value.is_a?(Hash)
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rval.merge!(strip_out_message_formats!(value, prefix + (prefix.length > 0 ? "." : "") << key, rval))
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elsif key.to_s.end_with?("_MF")
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rval[prefix + (prefix.length > 0 ? "." : "") << key] = value
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hash.delete(key)
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end
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end
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end
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rval
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end
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end
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