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- // Copyright 2013 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_WM_LOCK_STATE_OBSERVER_H_
- #define ASH_WM_LOCK_STATE_OBSERVER_H_
- #include "ash/ash_export.h"
- namespace ash {
- // Interface for classes that want to be notified by LockStateController when
- // session-related events occur.
- class ASH_EXPORT LockStateObserver {
- public:
- enum EventType {
- EVENT_PRELOCK_ANIMATION_STARTED,
- EVENT_LOCK_ANIMATION_STARTED,
- EVENT_LOCK_ANIMATION_FINISHED,
- };
- virtual void OnLockStateEvent(EventType event) = 0;
- virtual ~LockStateObserver() {}
- };
- } // namespace ash
- #endif // ASH_WM_LOCK_STATE_OBSERVER_H_
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