Implement "Add" and "Remove" buttons in Language and Input page.

chrome/browser/chromeos/dom_ui/language_options_handler.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/dom_ui/language_options_handler.h"
 
 #include "app/l10n_util.h"
 #include "base/values.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
@@ skipping 27 matching lines @@
       l10n_util::GetString(IDS_OPTIONS_SETTINGS_LANGUAGES_OTHERS));
   localized_strings->SetString(L"is_displayed_in_this_language",
       l10n_util::GetStringF(
           IDS_OPTIONS_SETTINGS_LANGUAGES_IS_DISPLAYED_IN_THIS_LANGUAGE,
           l10n_util::GetString(IDS_PRODUCT_OS_NAME)));
   localized_strings->SetString(L"display_in_this_language",
       l10n_util::GetStringF(
           IDS_OPTIONS_SETTINGS_LANGUAGES_DISPLAY_IN_THIS_LANGUAGE,
           l10n_util::GetString(IDS_PRODUCT_OS_NAME)));
 
-  // Build mappings of locale code (language code) to display name
-  // (ex. "en-US" => "English (United States)".
-  const std::vector<std::string>& locales = l10n_util::GetAvailableLocales();
-  for (size_t i = 0; i < locales.size(); ++i) {
-    localized_strings->SetString(UTF8ToWide(locales[i]),
-        chromeos::input_method::GetLanguageDisplayNameFromCode(locales[i]));
-  }
-
   localized_strings->Set(L"inputMethodList", GetInputMethodList());
+  localized_strings->Set(L"languageList", GetLanguageList());
 }
 
 ListValue* LanguageOptionsHandler::GetInputMethodList() {
   using chromeos::CrosLibrary;
 
   ListValue* input_method_list = new ListValue();
 
   // GetSupportedLanguages() never return NULL.
   scoped_ptr<chromeos::InputMethodDescriptors> descriptors(
       CrosLibrary::Get()->GetInputMethodLibrary()->GetSupportedInputMethods());
   for (size_t i = 0; i < descriptors->size(); ++i) {
     const chromeos::InputMethodDescriptor& descriptor = descriptors->at(i);
     const std::string language_code =
         chromeos::input_method::GetLanguageCodeFromDescriptor(descriptor);
     const std::string display_name =
         chromeos::input_method::GetInputMethodDisplayNameFromId(descriptor.id);
 
     DictionaryValue* dictionary = new DictionaryValue();
     dictionary->SetString(L"id", UTF8ToWide(descriptor.id));
     dictionary->SetString(L"displayName", UTF8ToWide(display_name));
     dictionary->SetString(L"languageCode", UTF8ToWide(language_code));
     input_method_list->Append(dictionary);
   }
 
   return input_method_list;
 }
+
+ListValue* LanguageOptionsHandler::GetLanguageList() {
+  ListValue* language_list = new ListValue();
+
+  const std::vector<std::string>& locales = l10n_util::GetAvailableLocales();
+  for (size_t i = 0; i < locales.size(); ++i) {
+    DictionaryValue* dictionary = new DictionaryValue();
+    dictionary->SetString(L"code", UTF8ToWide(locales[i]));
+    dictionary->SetString(L"displayName",
+        chromeos::input_method::GetLanguageDisplayNameFromCode(locales[i]));
+    language_list->Append(dictionary);
+  }
+
+  return language_list;
+}