src/device/hid/hid_service_mac.h

   1 // Copyright (c) 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 <map>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/basictypes.h"
  13 #include "base/mac/foundation_util.h"
  14 #include "base/memory/ref_counted.h"
  15 #include "base/memory/singleton.h"
  16 #include "base/message_loop/message_loop.h"
  17 #include "base/strings/string16.h"
  18 #include "base/synchronization/waitable_event.h"
  19 #include "base/threading/thread.h"
  20 #include "base/threading/thread_checker.h"
  21 #include "build/build_config.h"
  22 #include "device/hid/hid_device_info.h"
  23 #include "device/hid/hid_service.h"
  24
  25 #include <CoreFoundation/CoreFoundation.h>
  26 #include <IOKit/hid/IOHIDManager.h>
  27
  28 namespace device {
  29
  30 class HidConnection;
  31 class HidService;
  32
  33 class HidServiceMac : public HidService {
  34  public:
  35   HidServiceMac();
  36
  37   virtual scoped_refptr<HidConnection> Connect(std::string device_id) OVERRIDE;
  38
  39  private:
  40   virtual ~HidServiceMac();
  41
  42   void ScheduleRunLoop();
  43   void UnscheduleRunLoop();
  44
  45   // Device changing callbacks.
  46   static void AddDeviceCallback(void* context,
  47                                 IOReturn result,
  48                                 void* sender,
  49                                 IOHIDDeviceRef ref);
  50   static void RemoveDeviceCallback(void* context,
  51                                    IOReturn result,
  52                                    void* sender,
  53                                    IOHIDDeviceRef ref);
  54   static HidServiceMac* InstanceFromContext(void* context);
  55
  56   IOHIDDeviceRef FindDevice(std::string id);
  57
  58   void Enumerate();
  59
  60   void PlatformAddDevice(IOHIDDeviceRef ref);
  61   void PlatformRemoveDevice(IOHIDDeviceRef ref);
  62
  63   // The message loop this object belongs to.
  64   scoped_refptr<base::MessageLoopProxy> message_loop_;
  65
  66   // Platform HID Manager
  67   base::ScopedCFTypeRef<IOHIDManagerRef> hid_manager_ref_;
  68
  69   // Enumeration thread.
  70   scoped_ptr<base::Thread> enumeration_runloop_thread_;
  71   CFRunLoopRef enumeration_runloop_;
  72   base::WaitableEvent enumeration_runloop_init_;
  73
  74   bool available_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(HidServiceMac);
  77 };
  78
  79 }  // namespace device
  80
  81 #endif  // DEVICE_HID_HID_SERVICE_MAC_H_