device/hid/hid_service_mac.h

   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_