device/core/device_client.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_CORE_DEVICE_CLIENT_H_
   6 #define DEVICE_CORE_DEVICE_CLIENT_H_
   7
   8 #include "base/macros.h"
   9
  10 namespace device {
  11
  12 class HidService;
  13 class UsbService;
  14
  15 // Interface used by consumers of //device APIs to get pointers to the service
  16 // singletons appropriate for a given embedding application. For an example see
  17 // //chrome/browser/chrome_device_client.h.
  18 class DeviceClient {
  19  public:
  20   // Construction sets the single instance.
  21   DeviceClient();
  22
  23   // Destruction clears the single instance.
  24   ~DeviceClient();
  25
  26   // Returns the single instance of |this|.
  27   static DeviceClient* Get();
  28
  29   // Returns the UsbService instance for this embedder.
  30   virtual UsbService* GetUsbService();
  31
  32   // Returns the HidService instance for this embedder.
  33   virtual HidService* GetHidService();
  34
  35  private:
  36   DISALLOW_COPY_AND_ASSIGN(DeviceClient);
  37 };
  38
  39 }  // namespace device
  40
  41 #endif  // DEVICE_CORE_DEVICE_CLIENT_H_