1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef ASH_TRAY_ACTION_TRAY_ACTION_OBSERVER_H_
6 #define ASH_TRAY_ACTION_TRAY_ACTION_OBSERVER_H_
7 
8 #include "ash/ash_export.h"
9 #include "ash/public/mojom/tray_action.mojom.h"
10 
11 namespace ash {
12 
13 class ASH_EXPORT TrayActionObserver {
14  public:
~TrayActionObserver()15   virtual ~TrayActionObserver() {}
16 
17   // Called when action handler state changes.
18   virtual void OnLockScreenNoteStateChanged(mojom::TrayActionState state) = 0;
19 };
20 
21 }  // namespace ash
22 
23 #endif  // ASH_TRAY_ACTION_TRAY_ACTION_OBSERVER_H_
24