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      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.
      4 
      5 #ifndef DEVICE_HID_HID_SERVICE_MAC_H_
      6 #define DEVICE_HID_HID_SERVICE_MAC_H_
      7 
      8 #include <CoreFoundation/CoreFoundation.h>
      9 #include <IOKit/hid/IOHIDManager.h>
     10 
     11 #include <string>
     12 
     13 #include "base/mac/foundation_util.h"
     14 #include "base/memory/ref_counted.h"
     15 #include "device/hid/hid_service.h"
     16 
     17 namespace base {
     18 class MessageLoopProxy;
     19 }
     20 
     21 namespace device {
     22 
     23 class HidConnection;
     24 
     25 class HidServiceMac : public HidService {
     26  public:
     27   HidServiceMac();
     28 
     29   virtual scoped_refptr<HidConnection> Connect(const HidDeviceId& device_id)
     30       OVERRIDE;
     31 
     32  private:
     33   virtual ~HidServiceMac();
     34 
     35   void StartWatchingDevices();
     36   void StopWatchingDevices();
     37 
     38   // Device changing callbacks.
     39   static void AddDeviceCallback(void* context,
     40                                 IOReturn result,
     41                                 void* sender,
     42                                 IOHIDDeviceRef hid_device);
     43   static void RemoveDeviceCallback(void* context,
     44                                    IOReturn result,
     45                                    void* sender,
     46                                    IOHIDDeviceRef hid_device);
     47 
     48   void Enumerate();
     49 
     50   void PlatformAddDevice(IOHIDDeviceRef hid_device);
     51   void PlatformRemoveDevice(IOHIDDeviceRef hid_device);
     52 
     53   // Platform HID Manager
     54   base::ScopedCFTypeRef<IOHIDManagerRef> hid_manager_;
     55 
     56   // The message loop for the thread on which this service was created.
     57   scoped_refptr<base::MessageLoopProxy> message_loop_;
     58 
     59   DISALLOW_COPY_AND_ASSIGN(HidServiceMac);
     60 };
     61 
     62 }  // namespace device
     63 
     64 #endif  // DEVICE_HID_HID_SERVICE_MAC_H_
     65