| // Copyright (c) 2011 The Chromium OS 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 CROS_DISKS_SESSION_MANAGER_OBSERVER_INTERFACE_H_ |
| #define CROS_DISKS_SESSION_MANAGER_OBSERVER_INTERFACE_H_ |
| |
| namespace cros_disks { |
| |
| // An interface class for observing events from the session manager. |
| // A derived class of this class should override the event methods |
| // that it would like to observe. |
| class SessionManagerObserverInterface { |
| public: |
| virtual ~SessionManagerObserverInterface() = default; |
| |
| // This method is called when the screen is locked. |
| virtual void OnScreenIsLocked() = 0; |
| |
| // This method is called when the screen is unlocked. |
| virtual void OnScreenIsUnlocked() = 0; |
| |
| // This method is called when a session has started. |
| virtual void OnSessionStarted() = 0; |
| |
| // This method is called when a session has stopped. |
| virtual void OnSessionStopped() = 0; |
| }; |
| |
| } // namespace cros_disks |
| |
| #endif // CROS_DISKS_SESSION_MANAGER_OBSERVER_INTERFACE_H_ |