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// Copyright 2014 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 DEVICE_CORE_DEVICE_MONITOR_WIN_H_
#define DEVICE_CORE_DEVICE_MONITOR_WIN_H_
#include <windows.h>
#include "base/observer_list.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 DeviceMonitorWin {
public:
class Observer {
public:
virtual void OnDeviceAdded(const std::string& device_path);
virtual void OnDeviceRemoved(const std::string& device_path);
};
~DeviceMonitorWin();
static DeviceMonitorWin* GetForDeviceInterface(const GUID& guid);
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
private:
friend class DeviceMonitorMessageWindow;
DeviceMonitorWin(HDEVNOTIFY notify_handle);
void NotifyDeviceAdded(const std::string& device_path);
void NotifyDeviceRemoved(const std::string& device_path);
ObserverList<Observer> observer_list_;
HDEVNOTIFY notify_handle_;
};
}
#endif // DEVICE_CORE_DEVICE_MONITOR_WIN_H_
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