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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_LOCALE_LOCALE_CHANGE_GUARD_H_
#define CHROME_BROWSER_ASH_LOCALE_LOCALE_CHANGE_GUARD_H_
#include <stddef.h>
#include <memory>
#include <string>
#include <string_view>
#include "ash/public/cpp/locale_update_controller.h"
#include "base/containers/span.h"
#include "base/gtest_prod_util.h"
#include "base/lazy_instance.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "chrome/browser/ash/settings/device_settings_service.h"
#include "components/session_manager/core/session_manager.h"
#include "components/session_manager/core/session_manager_observer.h"
class PrefService;
class Profile;
namespace ash {
// Performs check whether locale has been changed automatically recently
// (based on synchronized user preference). If so: shows notification that
// allows user to revert change.
class LocaleChangeGuard final : public session_manager::SessionManagerObserver,
public DeviceSettingsService::Observer {
public:
LocaleChangeGuard(Profile* profile, PrefService* local_state);
LocaleChangeGuard(const LocaleChangeGuard&) = delete;
LocaleChangeGuard& operator=(const LocaleChangeGuard&) = delete;
~LocaleChangeGuard() override;
// Called just before changing locale.
void PrepareChangingLocale(std::string_view from_locale,
std::string_view to_locale);
// Called after login.
void OnLogin();
void set_locale_changed_during_login(bool changed) {
locale_changed_during_login_ = changed;
}
private:
FRIEND_TEST_ALL_PREFIXES(LocaleChangeGuardTest,
ShowNotificationLocaleChanged);
FRIEND_TEST_ALL_PREFIXES(LocaleChangeGuardTest,
ShowNotificationLocaleChangedList);
void Check();
void OnResult(LocaleNotificationResult result);
void AcceptLocaleChange();
void RevertLocaleChange();
// session_manager::SessionManagerObserver:
void OnUserSessionStarted(bool is_primary_user) override;
// DeviceSettingsService::Observer
void OwnershipStatusChanged() override;
// Whether the user has to be shown a locale update notification when the user
// preferred locale changes from |from_locale| to |to_locale|.
bool RequiresUserConfirmation(std::string_view from_locale,
std::string_view to_locale) const;
// Returns true if we should notify user about automatic locale change.
static bool ShouldShowLocaleChangeNotification(std::string_view from_locale,
std::string_view to_locale);
static base::span<const std::string_view>
GetSkipShowNotificationLanguagesForTesting();
// Set if the system locale has changed on the user login. If this is true,
// the `LocaleChangeGuard` will notify `LocaleUpdateController` that the
// locale has changed, even if the user does not have to be shown locale
// change notification, or if the user preferred locale has not changed.
// Set by ProfileImple using set_locale_changed_during_login().
bool locale_changed_during_login_ = false;
std::string from_locale_;
std::string to_locale_;
raw_ptr<Profile> profile_;
raw_ptr<PrefService> local_state_;
bool reverted_ = false;
base::ScopedObservation<session_manager::SessionManager,
session_manager::SessionManagerObserver>
session_observation_{this};
base::WeakPtrFactory<LocaleChangeGuard> weak_ptr_factory_{this};
};
} // namespace ash
#endif // CHROME_BROWSER_ASH_LOCALE_LOCALE_CHANGE_GUARD_H_
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