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.
5 #ifndef DEVICE_HID_HID_SERVICE_H_
6 #define DEVICE_HID_HID_SERVICE_H_
12 #include "base/memory/ref_counted.h"
13 #include "base/single_thread_task_runner.h"
14 #include "base/threading/thread_checker.h"
15 #include "device/hid/hid_device_info.h"
23 typedef base::Callback<void(scoped_refptr<HidConnection> connection)>
26 static HidService* GetInstance(
27 scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
28 scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
30 static void SetInstanceForTest(HidService* instance);
32 // Enumerates and returns a list of device identifiers.
33 virtual void GetDevices(std::vector<HidDeviceInfo>* devices);
35 // Fills in a DeviceInfo struct with info for the given device_id.
36 // Returns |true| if successful or |false| if |device_id| is invalid.
37 bool GetDeviceInfo(const HidDeviceId& device_id, HidDeviceInfo* info) const;
39 // Opens a connection to a device. The callback will be run with null on
41 virtual void Connect(const HidDeviceId& device_id,
42 const ConnectCallback& callback) = 0;
45 friend class HidConnectionTest;
47 typedef std::map<HidDeviceId, HidDeviceInfo> DeviceMap;
50 virtual ~HidService();
52 void AddDevice(const HidDeviceInfo& info);
53 void RemoveDevice(const HidDeviceId& device_id);
55 const DeviceMap& devices() const { return devices_; }
57 base::ThreadChecker thread_checker_;
64 DISALLOW_COPY_AND_ASSIGN(HidService);
69 #endif // DEVICE_HID_HID_SERVICE_H_