1// Copyright (c) 2012 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_VOLUME_CONTROL_DELEGATE_H_
6#define ASH_VOLUME_CONTROL_DELEGATE_H_
7
8namespace ui {
9class Accelerator;
10}  // namespace ui
11
12namespace ash {
13
14// Delegate for controlling the volume.
15class VolumeControlDelegate {
16 public:
17  virtual ~VolumeControlDelegate() {}
18
19  virtual bool HandleVolumeMute(const ui::Accelerator& accelerator) = 0;
20  virtual bool HandleVolumeDown(const ui::Accelerator& accelerator) = 0;
21  virtual bool HandleVolumeUp(const ui::Accelerator& accelerator) = 0;
22};
23
24}  // namespace ash
25
26#endif  // ASH_VOLUME_CONTROL_DELEGATE_H_
27