| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_EVENTS_DEVICE_HOTPLUG_EVENT_OBSERVER_H_ |
| #define UI_EVENTS_DEVICE_HOTPLUG_EVENT_OBSERVER_H_ |
| |
| #include <vector> |
| |
| #include "ui/events/events_base_export.h" |
| |
| namespace ui { |
| |
| struct KeyboardDevice; |
| struct TouchscreenDevice; |
| |
| // Listener for specific input device hotplug events. |
| class EVENTS_BASE_EXPORT DeviceHotplugEventObserver { |
| public: |
| virtual ~DeviceHotplugEventObserver() {} |
| |
| // On a hotplug event this is called with the list of available touchscreen |
| // devices. The set of touchscreen devices may not necessarily have changed. |
| virtual void OnTouchscreenDevicesUpdated( |
| const std::vector<TouchscreenDevice>& devices) = 0; |
| |
| // On a hotplug event this is called with the list of available keyboard |
| // devices. The set of keyboard devices may not necessarily have changed. |
| virtual void OnKeyboardDevicesUpdated( |
| const std::vector<KeyboardDevice>& devices) = 0; |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_EVENTS_DEVICE_HOTPLUG_EVENT_OBSERVER_H_ |