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// 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_DEVICES_DEVICE_HOTPLUG_EVENT_OBSERVER_H_
#define UI_EVENTS_DEVICES_DEVICE_HOTPLUG_EVENT_OBSERVER_H_
#include <vector>
#include "ui/events/devices/events_devices_export.h"
namespace ui {
struct InputDevice;
struct KeyboardDevice;
struct TouchscreenDevice;
// Listener for specific input device hotplug events.
class EVENTS_DEVICES_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 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 have changed.
virtual void OnKeyboardDevicesUpdated(
const std::vector<KeyboardDevice>& devices) = 0;
// On a hotplug event this is called with the list of available mice. The set
// of mice may not have changed.
virtual void OnMouseDevicesUpdated(
const std::vector<InputDevice>& devices) = 0;
// On a hotplug event this is called with the list of available touchpads. The
// set of touchpads may not have changed.
virtual void OnTouchpadDevicesUpdated(
const std::vector<InputDevice>& devices) = 0;
// On completion of the initial startup scan. This means all of the above
// OnDevicesUpdated() methods have been called with a complete list.
virtual void OnDeviceListsComplete() = 0;
};
} // namespace ui
#endif // UI_EVENTS_DEVICES_DEVICE_HOTPLUG_EVENT_OBSERVER_H_
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