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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_HID_HID_SERVICE_H_
#define DEVICE_HID_HID_SERVICE_H_
#include <map>
#include <string>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread_checker.h"
#include "device/hid/hid_device_info.h"
namespace device {
class HidConnection;
class HidService {
public:
static HidService* GetInstance(
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
virtual ~HidService();
// Enumerates and returns a list of device identifiers.
virtual void GetDevices(std::vector<HidDeviceInfo>* devices);
// Fills in a DeviceInfo struct with info for the given device_id.
// Returns |true| if successful or |false| if |device_id| is invalid.
bool GetDeviceInfo(const HidDeviceId& device_id, HidDeviceInfo* info) const;
virtual scoped_refptr<HidConnection> Connect(
const HidDeviceId& device_id) = 0;
protected:
friend class HidConnectionTest;
typedef std::map<HidDeviceId, HidDeviceInfo> DeviceMap;
HidService();
void AddDevice(const HidDeviceInfo& info);
void RemoveDevice(const HidDeviceId& device_id);
const DeviceMap& GetDevicesNoEnumerate() const;
base::ThreadChecker thread_checker_;
private:
DeviceMap devices_;
DISALLOW_COPY_AND_ASSIGN(HidService);
};
} // namespace device
#endif // DEVICE_HID_HID_SERVICE_H_
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