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// Copyright 2015 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/settings/languages_handler.h"
#include "base/bind.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/pref_names.h"
#include "components/language/core/browser/pref_names.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/web_ui.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/base/locale_util.h"
#include "chrome/browser/chromeos/profiles/profile_helper.h"
#include "components/user_manager/user_manager.h"
#include "components/user_manager/user_type.h"
#endif
namespace settings {
LanguagesHandler::LanguagesHandler(content::WebUI* webui)
: profile_(Profile::FromWebUI(webui)) {
}
LanguagesHandler::~LanguagesHandler() {
}
void LanguagesHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"getProspectiveUILanguage",
base::BindRepeating(&LanguagesHandler::HandleGetProspectiveUILanguage,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"setProspectiveUILanguage",
base::BindRepeating(&LanguagesHandler::HandleSetProspectiveUILanguage,
base::Unretained(this)));
}
void LanguagesHandler::HandleGetProspectiveUILanguage(
const base::ListValue* args) {
const base::Value* callback_id;
CHECK(args->Get(0, &callback_id));
AllowJavascript();
std::string locale;
#if defined(OS_CHROMEOS)
// On Chrome OS, an individual profile may have a preferred locale.
locale = profile_->GetPrefs()->GetString(language::prefs::kApplicationLocale);
#endif // defined(OS_CHROMEOS)
if (locale.empty()) {
locale = g_browser_process->local_state()->GetString(
language::prefs::kApplicationLocale);
}
ResolveJavascriptCallback(*callback_id, base::Value(locale));
}
void LanguagesHandler::HandleSetProspectiveUILanguage(
const base::ListValue* args) {
AllowJavascript();
CHECK_EQ(1U, args->GetSize());
std::string language_code;
CHECK(args->GetString(0, &language_code));
#if defined(OS_WIN)
PrefService* prefs = g_browser_process->local_state();
prefs->SetString(language::prefs::kApplicationLocale, language_code);
#elif defined(OS_CHROMEOS)
// Secondary users and public session users cannot change the locale.
user_manager::UserManager* user_manager = user_manager::UserManager::Get();
const user_manager::User* user =
chromeos::ProfileHelper::Get()->GetUserByProfile(profile_);
if (user &&
user->GetAccountId() == user_manager->GetPrimaryUser()->GetAccountId() &&
user->GetType() != user_manager::USER_TYPE_PUBLIC_ACCOUNT) {
profile_->ChangeAppLocale(language_code,
Profile::APP_LOCALE_CHANGED_VIA_SETTINGS);
}
#endif
}
} // namespace settings
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