ui/events/devices/input_device_event_observer.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 UI_EVENTS_DEVICES_INPUT_DEVICE_EVENT_OBSERVER_H_
   6 #define UI_EVENTS_DEVICES_INPUT_DEVICE_EVENT_OBSERVER_H_
   7
   8 #include "ui/events/devices/events_devices_export.h"
   9
  10 namespace ui {
  11
  12 // DeviceDataManager observer used to announce input hotplug events.
  13 class EVENTS_DEVICES_EXPORT InputDeviceEventObserver {
  14  public:
  15   virtual ~InputDeviceEventObserver() {}
  16
  17   virtual void OnKeyboardDeviceConfigurationChanged() {}
  18   virtual void OnTouchscreenDeviceConfigurationChanged() {}
  19   virtual void OnMouseDeviceConfigurationChanged() {}
  20   virtual void OnTouchpadDeviceConfigurationChanged() {}
  21
  22  protected:
  23   InputDeviceEventObserver() {}
  24 };
  25
  26 }  // namespace ui
  27
  28 #endif  // UI_EVENTS_DEVICES_INPUT_DEVICE_EVENT_OBSERVER_H_