gesture_touch_uma_histogram.h revision 1320f92c476a1ad9d19dba2a48c72b75566198e9 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef UI_EVENTS_GESTURE_DETECTION_GESTURE_TOUCH_UMA_HISTOGRAM_H_
6#define UI_EVENTS_GESTURE_DETECTION_GESTURE_TOUCH_UMA_HISTOGRAM_H_
7
8#include "base/time/time.h"
9#include "ui/events/gesture_detection/gesture_detection_export.h"
10#include "ui/events/gesture_detection/gesture_event_data.h"
11#include "ui/events/gesture_detection/motion_event.h"
12
13namespace ui {
14
15enum UMAEventType {
16  // WARNING: Do not change the numerical values of any of these types.
17  // Do not remove deprecated types - just comment them as deprecated.
18  UMA_ET_UNKNOWN = 0,
19  UMA_ET_TOUCH_RELEASED = 1,
20  UMA_ET_TOUCH_PRESSED = 2,
21  UMA_ET_TOUCH_MOVED = 3,
22  UMA_ET_TOUCH_STATIONARY = 4,  // Deprecated. Do not remove.
23  UMA_ET_TOUCH_CANCELLED = 5,
24  UMA_ET_GESTURE_SCROLL_BEGIN = 6,
25  UMA_ET_GESTURE_SCROLL_END = 7,
26  UMA_ET_GESTURE_SCROLL_UPDATE = 8,
27  UMA_ET_GESTURE_TAP = 9,
28  UMA_ET_GESTURE_TAP_DOWN = 10,
29  UMA_ET_GESTURE_BEGIN = 11,
30  UMA_ET_GESTURE_END = 12,
31  UMA_ET_GESTURE_DOUBLE_TAP = 13,
32  UMA_ET_GESTURE_TRIPLE_TAP = 14,
33  UMA_ET_GESTURE_TWO_FINGER_TAP = 15,
34  UMA_ET_GESTURE_PINCH_BEGIN = 16,
35  UMA_ET_GESTURE_PINCH_END = 17,
36  UMA_ET_GESTURE_PINCH_UPDATE = 18,
37  UMA_ET_GESTURE_LONG_PRESS = 19,
38  UMA_ET_GESTURE_SWIPE_2 = 20,  // Swipe with 2 fingers
39  UMA_ET_SCROLL = 21,
40  UMA_ET_SCROLL_FLING_START = 22,
41  UMA_ET_SCROLL_FLING_CANCEL = 23,
42  UMA_ET_GESTURE_SWIPE_3 = 24,   // Swipe with 3 fingers
43  UMA_ET_GESTURE_SWIPE_4P = 25,  // Swipe with 4+ fingers
44  UMA_ET_GESTURE_SCROLL_UPDATE_2 = 26,
45  UMA_ET_GESTURE_SCROLL_UPDATE_3 = 27,
46  UMA_ET_GESTURE_SCROLL_UPDATE_4P = 28,
47  UMA_ET_GESTURE_PINCH_UPDATE_3 = 29,
48  UMA_ET_GESTURE_PINCH_UPDATE_4P = 30,
49  UMA_ET_GESTURE_LONG_TAP = 31,
50  UMA_ET_GESTURE_SHOW_PRESS = 32,
51  UMA_ET_GESTURE_TAP_CANCEL = 33,
52  UMA_ET_GESTURE_WIN8_EDGE_SWIPE = 34,
53  UMA_ET_GESTURE_SWIPE_1 = 35,  // Swipe with 1 finger
54  UMA_ET_GESTURE_TAP_UNCONFIRMED = 36,
55  // NOTE: Add new event types only immediately above this line. Make sure to
56  // update the UIEventType enum in tools/metrics/histograms/histograms.xml
57  // accordingly.
58  UMA_ET_COUNT
59};
60
61// Records some touch/gesture event specific details (e.g. what gestures are
62// targetted to which components etc.)
63class GESTURE_DETECTION_EXPORT GestureTouchUMAHistogram {
64 public:
65  GestureTouchUMAHistogram();
66  ~GestureTouchUMAHistogram();
67
68  static void RecordGestureEvent(const ui::GestureEventData& gesture);
69  void RecordTouchEvent(const ui::MotionEvent& event);
70
71 private:
72  static UMAEventType UMAEventTypeFromEvent(const GestureEventData& gesture);
73
74  // The first finger's press time.
75  base::TimeTicks start_time_;
76  // The first finger's press location.
77  gfx::Point start_touch_position_;
78  // The maximum distance the first touch point travelled from its starting
79  // location in pixels.
80  float max_distance_from_start_squared_;
81  bool is_single_finger_;
82};
83
84}  // namespace ui
85
86#endif  // UI_EVENTS_GESTURE_DETECTION_GESTURE_TOUCH_UMA_HISTOGRAM_H_
87