pkg/intl/lib/intl_browser.dart

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * This provides facilities for Internationalization that are only available
 * when running in the web browser. You should import only one of this or
 * intl_standalone.dart. Right now the only thing provided here is the
 * ability to find the default locale from the browser.
 */

library intl_browser;

import "dart:async";
import "dart:html";
import "intl.dart";

// TODO(alanknight): The need to do this by forcing the user to specially
// import a particular library is a horrible hack, only done because there
// seems to be no graceful way to do this at all. Either mirror access on
// dart2js or the ability to do spawnUri in the browser would be promising
// as ways to get rid of this requirement.
/**
 * Find the system locale, accessed as window.navigator.language, and
 * set it as the default for internationalization operations in the
 * [Intl.systemLocale] variable.
 */
Future<String> findSystemLocale() {
  Intl.systemLocale = Intl.canonicalizedLocale(window.navigator.language);
  return new Future.value(Intl.systemLocale);
}