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// Copyright (c) 2012 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_SYSTEM_AUDIO_TRAY_VOLUME_H_
#define ASH_SYSTEM_AUDIO_TRAY_VOLUME_H_
#pragma once
#include "ash/system/audio/audio_observer.h"
#include "ash/system/tray/tray_image_item.h"
namespace ash {
namespace internal {
namespace tray {
class VolumeView;
}
class TrayVolume : public TrayImageItem,
public AudioObserver {
public:
TrayVolume();
virtual ~TrayVolume();
private:
// Overridden from TrayImageItem.
virtual bool GetInitialVisibility() OVERRIDE;
// Overridden from SystemTrayItem.
virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
virtual void DestroyDefaultView() OVERRIDE;
virtual void DestroyDetailedView() OVERRIDE;
// Overridden from AudioObserver.
virtual void OnVolumeChanged(float percent) OVERRIDE;
tray::VolumeView* volume_view_;
// Was |volume_view_| created for CreateDefaultView() rather than
// CreateDetailedView()? Used to avoid resetting |volume_view_|
// inappropriately in DestroyDefaultView() or DestroyDetailedView().
bool is_default_view_;
DISALLOW_COPY_AND_ASSIGN(TrayVolume);
};
} // namespace internal
} // namespace ash
#endif // ASH_SYSTEM_AUDIO_TRAY_VOLUME_H_
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