| // 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/memory/scoped_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/threading/thread_checker.h" |
| #include "device/hid/hid_device_info.h" |
| |
| namespace device { |
| |
| class HidConnection; |
| |
| class HidService : public base::MessageLoop::DestructionObserver { |
| public: |
| // Must be called on FILE thread. |
| static HidService* GetInstance(); |
| |
| // 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; |
| |
| // Implements base::MessageLoop::DestructionObserver |
| virtual void WillDestroyCurrentMessageLoop() OVERRIDE; |
| |
| protected: |
| friend struct base::DefaultDeleter<HidService>; |
| friend class HidConnectionTest; |
| |
| typedef std::map<HidDeviceId, HidDeviceInfo> DeviceMap; |
| |
| HidService(); |
| virtual ~HidService(); |
| |
| static HidService* CreateInstance(); |
| |
| void AddDevice(const HidDeviceInfo& info); |
| void RemoveDevice(const HidDeviceId& device_id); |
| |
| base::ThreadChecker thread_checker_; |
| |
| private: |
| DeviceMap devices_; |
| |
| DISALLOW_COPY_AND_ASSIGN(HidService); |
| }; |
| |
| } // namespace device |
| |
| #endif // DEVICE_HID_HID_SERVICE_H_ |