Add language and keyboard layout pickers to public session pods

chrome/browser/ui/webui/chromeos/login/l10n_util.cc

 // Copyright 2014 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/ui/webui/chromeos/login/l10n_util.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 386 matching lines @@
     if (!optgroup_added) {
       optgroup_added = true;
       AddOptgroupOtherLayouts(input_methods_list.get());
     }
     input_methods_list->Append(CreateInputMethodsEntry(*us_eng_descriptor,
                                                        selected));
   }
   return input_methods_list.Pass();
 }
 
+scoped_ptr<base::ListValue> GetKeyboardLayoutsForLocale(
+    const std::string& locale) {
+  input_method::InputMethodUtil* util =
+      input_method::InputMethodManager::Get()->GetInputMethodUtil();
+  std::vector<std::string> layouts = util->GetHardwareInputMethodIds();
+  std::vector<std::string> layouts_from_locale;
+  util->GetInputMethodIdsFromLanguageCode(
+      l10n_util::GetApplicationLocale(locale),
+      input_method::kKeyboardLayoutsOnly,
+      &layouts_from_locale);
+  layouts.insert(layouts.end(), layouts_from_locale.begin(),
+                 layouts_from_locale.end());
+
+  std::string selected;
+  if (!layouts_from_locale.empty()) {
+    selected =
+        util->GetInputMethodDescriptorFromId(layouts_from_locale[0])->id();
+  }
+
+  scoped_ptr<base::ListValue> input_methods_list(new base::ListValue);
+  std::set<std::string> input_methods_added;
+  for (std::vector<std::string>::const_iterator it = layouts.begin();
+       it != layouts.end(); ++it) {
+    const input_method::InputMethodDescriptor* ime =
+        util->GetInputMethodDescriptorFromId(*it);
+    if (!InsertString(ime->id(), input_methods_added))
+      continue;
+    input_methods_list->Append(CreateInputMethodsEntry(*ime, selected));
+  }
+  return input_methods_list.Pass();
+}
+
 }  // namespace chromeos