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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_PHONEHUB_SCREEN_LOCK_MANAGER_H_
#define CHROMEOS_ASH_COMPONENTS_PHONEHUB_SCREEN_LOCK_MANAGER_H_
#include "base/observer_list.h"
namespace ash::phonehub {
// Tracks the status of whether the user has enabled screen lock on their phone.
class ScreenLockManager {
public:
// Status of screen lock. Numerical values are stored in prefs and should not
// be changed or reused.
enum class LockStatus {
// Default screen lock status when the values is not synced from the phone
// yet.
kUnknown = 0,
// Screen lock is not enabled.
kLockedOff = 1,
// Screen lock is enabled.
kLockedOn = 2
};
class Observer : public base::CheckedObserver {
public:
~Observer() override = default;
// Called when screen lock has changed; use GetLockStatus()
// for the new status.
virtual void OnScreenLockChanged() = 0;
};
ScreenLockManager(const ScreenLockManager&) = delete;
ScreenLockManager& operator=(const ScreenLockManager&) = delete;
virtual ~ScreenLockManager();
virtual LockStatus GetLockStatus() const = 0;
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
protected:
ScreenLockManager();
void NotifyScreenLockChanged();
private:
friend class PhoneStatusProcessor;
friend class ScreenLockManagerImplTest;
virtual void SetLockStatusInternal(LockStatus lock_status) = 0;
base::ObserverList<Observer> observer_list_;
};
} // namespace ash::phonehub
#endif // CHROMEOS_ASH_COMPONENTS_PHONEHUB_SCREEN_LOCK_MANAGER_H_
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