1// Copyright 2014 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_SYSTEM_WIN_AUDIO_TRAY_AUDIO_DELEGATE_WIN_H_ 6#define ASH_SYSTEM_WIN_AUDIO_TRAY_AUDIO_DELEGATE_WIN_H_ 7 8#include <audioclient.h> 9#include <mmdeviceapi.h> 10 11#include "ash/ash_export.h" 12#include "ash/system/audio/tray_audio_delegate.h" 13#include "base/compiler_specific.h" 14#include "base/win/scoped_comptr.h" 15 16namespace ash { 17namespace system { 18 19class ASH_EXPORT TrayAudioDelegateWin : public TrayAudioDelegate { 20 public: 21 virtual ~TrayAudioDelegateWin() {} 22 23 // Overridden from TrayAudioDelegate. 24 virtual void AdjustOutputVolumeToAudibleLevel() OVERRIDE; 25 virtual int GetOutputDefaultVolumeMuteLevel() OVERRIDE; 26 virtual int GetOutputVolumeLevel() OVERRIDE; 27 virtual int GetActiveOutputDeviceIconId() OVERRIDE; 28 virtual bool HasAlternativeSources() OVERRIDE; 29 virtual bool IsOutputAudioMuted() OVERRIDE; 30 virtual void SetOutputAudioIsMuted(bool is_muted) OVERRIDE; 31 virtual void SetOutputVolumeLevel(int level) OVERRIDE; 32 33 private: 34 base::win::ScopedComPtr<ISimpleAudioVolume> CreateDefaultVolumeControl(); 35}; 36 37} // namespace system 38} // namespace ash 39 40#endif // ASH_SYSTEM_WIN_AUDIO_TRAY_AUDIO_DELEGATE_WIN_H_