| // Copyright 2020 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. |
| |
| #ifndef ASH_SYSTEM_GESTURE_EDUCATION_GESTURE_EDUCATION_NOTIFICATION_CONTROLLER_H_ |
| #define ASH_SYSTEM_GESTURE_EDUCATION_GESTURE_EDUCATION_NOTIFICATION_CONTROLLER_H_ |
| |
| #include <string> |
| |
| #include "ash/ash_export.h" |
| #include "ash/public/cpp/session/session_observer.h" |
| #include "ash/public/cpp/tablet_mode_observer.h" |
| #include "ash/wm/tablet_mode/tablet_mode_controller.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/optional.h" |
| #include "base/scoped_observation.h" |
| #include "base/strings/string16.h" |
| |
| class PrefRegistrySimple; |
| |
| namespace ash { |
| |
| // Controller class to manage gesture education notification. This notification |
| // shows up once to provide the user with information about new gestures added |
| // to chrome os for easier navigation. |
| class ASH_EXPORT GestureEducationNotificationController |
| : public SessionObserver, |
| public TabletModeObserver { |
| public: |
| GestureEducationNotificationController(); |
| ~GestureEducationNotificationController() override; |
| |
| // Shows the gesture education notification if it needs to be shown. |
| void MaybeShowNotification(); |
| |
| // SessionObserver: |
| void OnActiveUserPrefServiceChanged(PrefService* pref_service) override; |
| void OnSessionStateChanged(session_manager::SessionState state) override; |
| |
| // TabletModeObserver: |
| void OnTabletModeStarted() override; |
| void OnTabletControllerDestroyed() override; |
| |
| // See Shell::RegisterProfilePrefs(). |
| static void RegisterProfilePrefs(PrefRegistrySimple* registry, bool for_test); |
| |
| private: |
| friend class GestureEducationNotificationControllerTest; |
| |
| void GenerateGestureEducationNotification(); |
| std::u16string GetNotificationTitle() const; |
| std::u16string GetNotificationMessage() const; |
| void HandleNotificationClick(); |
| |
| void ResetPrefForTest(); |
| |
| base::ScopedObservation<TabletModeController, TabletModeObserver> |
| tablet_mode_observation_{this}; |
| |
| PrefService* active_user_prefs_ = nullptr; // Not owned. |
| |
| static const char kNotificationId[]; |
| |
| base::WeakPtrFactory<GestureEducationNotificationController> |
| weak_ptr_factory_{this}; |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SYSTEM_GESTURE_EDUCATION_GESTURE_EDUCATION_NOTIFICATION_CONTROLLER_H_ |