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// Copyright 2015 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_TOUCH_EVDEV_TYPES_H_
#define UI_EVENTS_OZONE_EVDEV_TOUCH_EVDEV_TYPES_H_

#if defined(__ANDROID__) || defined(__ANDROID_HOST__)
#include <compare>
#endif
#include <stddef.h>

#include "base/component_export.h"
#include "base/time/time.h"
#include "ui/events/event_constants.h"

namespace ui {

// Number of supported touch slots. ABS_MT_SLOT messages with
// value >= kNumTouchEvdevSlots are ignored.
const int kNumTouchEvdevSlots = 20;

// Contains information about an in progress touch.
struct COMPONENT_EXPORT(EVDEV) InProgressTouchEvdev {
  InProgressTouchEvdev();
  InProgressTouchEvdev(const InProgressTouchEvdev& other);
  ~InProgressTouchEvdev();

#if defined(__ANDROID__) || defined(__ANDROID_HOST__)
  auto operator<=>(const InProgressTouchEvdev&) const = default;
#endif

  // Current touch major of this slot.
  int major = 0;

  // Current touch minor of this slot.
  int minor = 0;

  // Current tool type of this slot.
  int tool_type = 0;

  // Whether there is new information for the touch.
  bool altered = false;

  // Whether the touch was cancelled. Touch events should be ignored till a
  // new touch is initiated.
  bool was_cancelled = false;

  // Whether the touch is going to be canceled.
  bool cancelled = false;

  // Whether the touch is delayed at first appearance. Will not be reported yet.
  bool delayed = false;

  // Whether the touch was delayed before.
  bool was_delayed = false;

  // Whether the touch is held until end or no longer held.
  bool held = false;

  // Whether this touch was held before being sent.
  bool was_held = false;

  bool was_touching = false;
  bool touching = false;
  float x = 0;
  float y = 0;
  int tracking_id = -1;
  size_t slot = 0;
  float radius_x = 0;
  float radius_y = 0;
  float pressure = 0;
  int tool_code = 0;
  int orientation = 0;
  float tilt_x = 0;
  float tilt_y = 0;
  ui::EventPointerType reported_tool_type = ui::EventPointerType::kTouch;
  bool stylus_button = false;
};

std::ostream& operator<<(std::ostream& out, const InProgressTouchEvdev& touch);

// Contains information about stylus event, the useful relate ddevice info and
// the timestamp.
struct COMPONENT_EXPORT(EVDEV) InProgressStylusState {
  InProgressStylusState();
  InProgressStylusState(const InProgressStylusState& other);
  ~InProgressStylusState();

  InProgressTouchEvdev stylus_event;
  // Stylus x and y resolution, used for normalization.
  int x_res = 1;
  int y_res = 1;

  base::TimeTicks timestamp = base::TimeTicks();
};

}  // namespace ui

#endif  // UI_EVENTS_OZONE_EVDEV_TOUCH_EVDEV_TYPES_H_