It is time.

ui/events/ozone/evdev/event_device_info.h

-// Copyright 2013 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_OZONE_EVDEV_EVENT_DEVICE_INFO_H_
-#define UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_INFO_H_
-
-#include <limits.h>
-#include <linux/input.h>
-
-#include "base/basictypes.h"
-#include "ui/events/ozone/evdev/event_device_util.h"
-#include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
-
-namespace ui {
-
-// Device information for Linux input devices
-//
-// This stores and queries information about input devices; in
-// particular it knows which events the device can generate.
-class EVENTS_OZONE_EVDEV_EXPORT EventDeviceInfo {
- public:
-  EventDeviceInfo();
-  ~EventDeviceInfo();
-
-  // Initialize device information from an open device.
-  bool Initialize(int fd);
-
-  // Check events this device can generate.
-  bool HasEventType(unsigned int type) const;
-  bool HasKeyEvent(unsigned int code) const;
-  bool HasRelEvent(unsigned int code) const;
-  bool HasAbsEvent(unsigned int code) const;
-  bool HasMscEvent(unsigned int code) const;
-  bool HasSwEvent(unsigned int code) const;
-  bool HasLedEvent(unsigned int code) const;
-
-  // Properties of absolute axes.
-  int32 GetAbsMinimum(unsigned int code) const;
-  int32 GetAbsMaximum(unsigned int code) const;
-
-  // Check input device properties.
-  bool HasProp(unsigned int code) const;
-
-  // Has absolute X & Y axes.
-  bool HasAbsXY() const;
-
-  // Has relativeX & Y axes.
-  bool HasRelXY() const;
-
-  // Determine whether absolute device X/Y coordinates are mapped onto the
-  // screen. This is the case for touchscreens and tablets but not touchpads.
-  bool IsMappedToScreen() const;
-
- private:
-  unsigned long ev_bits_[EVDEV_BITS_TO_LONGS(EV_CNT)];
-  unsigned long key_bits_[EVDEV_BITS_TO_LONGS(KEY_CNT)];
-  unsigned long rel_bits_[EVDEV_BITS_TO_LONGS(REL_CNT)];
-  unsigned long abs_bits_[EVDEV_BITS_TO_LONGS(ABS_CNT)];
-  unsigned long msc_bits_[EVDEV_BITS_TO_LONGS(MSC_CNT)];
-  unsigned long sw_bits_[EVDEV_BITS_TO_LONGS(SW_CNT)];
-  unsigned long led_bits_[EVDEV_BITS_TO_LONGS(LED_CNT)];
-  unsigned long prop_bits_[EVDEV_BITS_TO_LONGS(INPUT_PROP_CNT)];
-
-  struct input_absinfo abs_info_[ABS_CNT];
-
-  DISALLOW_COPY_AND_ASSIGN(EventDeviceInfo);
-};
-
-}  // namspace ui
-
-#endif  // UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_INFO_H_