pkgs/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;

import 'intl.dart';
import 'src/web.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 Future.value(Intl.systemLocale);
}