ui/events/device_hotplug_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_DEVICE_HOTPLUG_EVENT_OBSERVER_H_
   6 #define UI_EVENTS_DEVICE_HOTPLUG_EVENT_OBSERVER_H_
   7
   8 #include "ui/events/events_base_export.h"
   9 #include "ui/events/touchscreen_device.h"
  10
  11 namespace ui {
  12
  13 // Listener for specific input device hotplug events.
  14 class EVENTS_BASE_EXPORT DeviceHotplugEventObserver {
  15  public:
  16   virtual ~DeviceHotplugEventObserver() {}
  17
  18   // On a hotplug event this is called with the list of available devices.
  19   virtual void OnTouchscreenDevicesUpdated(
  20       const std::vector<TouchscreenDevice>& devices) = 0;
  21 };
  22
  23 }  // namespace ui
  24
  25 #endif  // UI_EVENTS_DEVICE_HOTPLUG_EVENT_OBSERVER_H_