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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_BASE_DEVICE_MONITOR_WIN_H_
#define DEVICE_BASE_DEVICE_MONITOR_WIN_H_
#include <string>
#include "base/observer_list.h"
#include "base/win/windows_types.h"
#include "device/base/device_base_export.h"
namespace device {
// Use an instance of this class to observe devices being added and removed
// from the system, matched by device interface GUID.
class DEVICE_BASE_EXPORT DeviceMonitorWin {
public:
class DEVICE_BASE_EXPORT Observer {
public:
virtual void OnDeviceAdded(const GUID& class_guid,
const std::wstring& device_path);
virtual void OnDeviceRemoved(const GUID& class_guid,
const std::wstring& device_path);
};
~DeviceMonitorWin();
static DeviceMonitorWin* GetForDeviceInterface(const GUID& guid);
static DeviceMonitorWin* GetForAllInterfaces();
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
private:
friend class DeviceMonitorMessageWindow;
DeviceMonitorWin();
void NotifyDeviceAdded(const GUID& class_guid,
const std::wstring& device_path);
void NotifyDeviceRemoved(const GUID& class_guid,
const std::wstring& device_path);
base::ObserverList<Observer>::Unchecked observer_list_;
};
} // namespace device
#endif // DEVICE_BASE_DEVICE_MONITOR_WIN_H_
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