File: drag_descriptor.h

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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ASH_KEYBOARD_UI_DRAG_DESCRIPTOR_H_
#define ASH_KEYBOARD_UI_DRAG_DESCRIPTOR_H_

#include "ui/events/event.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/vector2d.h"

namespace keyboard {

// Tracks the state of a mouse drag to move the keyboard. The DragDescriptor
// does not actually change while the user drags. It essentially just records
// the offset of the original click on the keyboard along with the original
// location of the keyboard and uses incoming mouse move events to determine
// where the keyboard should be placed using those offsets.
struct DragDescriptor {
  gfx::Point original_keyboard_location;
  gfx::Vector2d original_click_offset;

  // The pointer ID provided by the touch event to disambiguate multiple
  // touch points. If this is a mouse event, then this value is kMousePointerId.
  ui::PointerId pointer_id;
};

}  // namespace keyboard

#endif  // ASH_KEYBOARD_UI_DRAG_DESCRIPTOR_H_