src/ui/events/gesture_detection/gesture_touch_uma_histogram.cc

   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 #include "ui/events/gesture_detection/gesture_touch_uma_histogram.h"
   6
   7 #include "base/metrics/histogram.h"
   8
   9 namespace ui {
  10
  11 GestureTouchUMAHistogram::GestureTouchUMAHistogram()
  12     : max_distance_from_start_squared_(0), is_single_finger_(true) {
  13 }
  14
  15 GestureTouchUMAHistogram::~GestureTouchUMAHistogram() {
  16 }
  17
  18 void GestureTouchUMAHistogram::RecordGestureEvent(
  19     const GestureEventData& gesture) {
  20   UMA_HISTOGRAM_ENUMERATION(
  21       "Event.GestureCreated", UMAEventTypeFromEvent(gesture), UMA_ET_COUNT);
  22 }
  23
  24 void GestureTouchUMAHistogram::RecordTouchEvent(const MotionEvent& event) {
  25   if (event.GetAction() == MotionEvent::ACTION_DOWN) {
  26     start_time_ = event.GetEventTime();
  27     start_touch_position_ = gfx::Point(event.GetX(), event.GetY());
  28     is_single_finger_ = true;
  29     max_distance_from_start_squared_ = 0;
  30   } else if (event.GetAction() == MotionEvent::ACTION_MOVE &&
  31              is_single_finger_) {
  32     float cur_dist = (start_touch_position_ -
  33                       gfx::Point(event.GetX(), event.GetY())).LengthSquared();
  34     if (cur_dist > max_distance_from_start_squared_)
  35       max_distance_from_start_squared_ = cur_dist;
  36   } else {
  37     if (event.GetAction() == MotionEvent::ACTION_UP && is_single_finger_) {
  38       UMA_HISTOGRAM_CUSTOM_COUNTS(
  39           "Event.TouchMaxDistance",
  40           static_cast<int>(sqrt(max_distance_from_start_squared_)),
  41           0,
  42           1500,
  43           50);
  44
  45       base::TimeDelta duration = event.GetEventTime() - start_time_;
  46       UMA_HISTOGRAM_TIMES("Event.TouchDuration", duration);
  47     }
  48     is_single_finger_ = false;
  49   }
  50 }
  51
  52 UMAEventType GestureTouchUMAHistogram::UMAEventTypeFromEvent(
  53     const GestureEventData& gesture) {
  54   switch (gesture.type()) {
  55     case ET_TOUCH_RELEASED:
  56       return UMA_ET_TOUCH_RELEASED;
  57     case ET_TOUCH_PRESSED:
  58       return UMA_ET_TOUCH_PRESSED;
  59     case ET_TOUCH_MOVED:
  60       return UMA_ET_TOUCH_MOVED;
  61     case ET_TOUCH_CANCELLED:
  62       return UMA_ET_TOUCH_CANCELLED;
  63     case ET_GESTURE_SCROLL_BEGIN:
  64       return UMA_ET_GESTURE_SCROLL_BEGIN;
  65     case ET_GESTURE_SCROLL_END:
  66       return UMA_ET_GESTURE_SCROLL_END;
  67     case ET_GESTURE_SCROLL_UPDATE: {
  68       int touch_points = gesture.details.touch_points();
  69       if (touch_points == 1)
  70         return UMA_ET_GESTURE_SCROLL_UPDATE;
  71       else if (touch_points == 2)
  72         return UMA_ET_GESTURE_SCROLL_UPDATE_2;
  73       else if (touch_points == 3)
  74         return UMA_ET_GESTURE_SCROLL_UPDATE_3;
  75       return UMA_ET_GESTURE_SCROLL_UPDATE_4P;
  76     }
  77     case ET_GESTURE_TAP: {
  78       int tap_count = gesture.details.tap_count();
  79       if (tap_count == 1)
  80         return UMA_ET_GESTURE_TAP;
  81       if (tap_count == 2)
  82         return UMA_ET_GESTURE_DOUBLE_TAP;
  83       if (tap_count == 3)
  84         return UMA_ET_GESTURE_TRIPLE_TAP;
  85       NOTREACHED() << "Received tap with tapcount " << tap_count;
  86       return UMA_ET_UNKNOWN;
  87     }
  88     case ET_GESTURE_TAP_DOWN:
  89       return UMA_ET_GESTURE_TAP_DOWN;
  90     case ET_GESTURE_BEGIN:
  91       return UMA_ET_GESTURE_BEGIN;
  92     case ET_GESTURE_END:
  93       return UMA_ET_GESTURE_END;
  94     case ET_GESTURE_TWO_FINGER_TAP:
  95       return UMA_ET_GESTURE_TWO_FINGER_TAP;
  96     case ET_GESTURE_PINCH_BEGIN:
  97       return UMA_ET_GESTURE_PINCH_BEGIN;
  98     case ET_GESTURE_PINCH_END:
  99       return UMA_ET_GESTURE_PINCH_END;
 100     case ET_GESTURE_PINCH_UPDATE: {
 101       int touch_points = gesture.details.touch_points();
 102       if (touch_points >= 4)
 103         return UMA_ET_GESTURE_PINCH_UPDATE_4P;
 104       else if (touch_points == 3)
 105         return UMA_ET_GESTURE_PINCH_UPDATE_3;
 106       return UMA_ET_GESTURE_PINCH_UPDATE;
 107     }
 108     case ET_GESTURE_LONG_PRESS:
 109       return UMA_ET_GESTURE_LONG_PRESS;
 110     case ET_GESTURE_LONG_TAP:
 111       return UMA_ET_GESTURE_LONG_TAP;
 112     case ET_GESTURE_SWIPE: {
 113       int touch_points = gesture.details.touch_points();
 114       if (touch_points == 1)
 115         return UMA_ET_GESTURE_SWIPE_1;
 116       else if (touch_points == 2)
 117         return UMA_ET_GESTURE_SWIPE_2;
 118       else if (touch_points == 3)
 119         return UMA_ET_GESTURE_SWIPE_3;
 120       return UMA_ET_GESTURE_SWIPE_4P;
 121     }
 122     case ET_GESTURE_WIN8_EDGE_SWIPE:
 123       return UMA_ET_GESTURE_WIN8_EDGE_SWIPE;
 124     case ET_GESTURE_TAP_CANCEL:
 125       return UMA_ET_GESTURE_TAP_CANCEL;
 126     case ET_GESTURE_SHOW_PRESS:
 127       return UMA_ET_GESTURE_SHOW_PRESS;
 128     case ET_SCROLL:
 129       return UMA_ET_SCROLL;
 130     case ET_SCROLL_FLING_START:
 131       return UMA_ET_SCROLL_FLING_START;
 132     case ET_SCROLL_FLING_CANCEL:
 133       return UMA_ET_SCROLL_FLING_CANCEL;
 134     case ET_GESTURE_TAP_UNCONFIRMED:
 135       return UMA_ET_GESTURE_TAP_UNCONFIRMED;
 136     case ET_GESTURE_DOUBLE_TAP:
 137       return UMA_ET_GESTURE_DOUBLE_TAP;
 138     default:
 139       NOTREACHED();
 140       return UMA_ET_UNKNOWN;
 141   }
 142 }
 143
 144 }  //  namespace ui