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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/events/gesture_detection/gesture_touch_uma_histogram.h"
#include <ostream>
#include "base/metrics/histogram_macros.h"
#include "base/notreached.h"
namespace ui {
void GestureTouchUMAHistogram::RecordGestureEvent(
const GestureEventData& gesture) {
UMA_HISTOGRAM_ENUMERATION(
"Event.GestureCreated", UMAEventTypeFromEvent(gesture), UMA_ET_COUNT);
}
#define RECORD_MAX_DRAG_DISTANCE(HISTOGRAM_NAME, DIST_SQUARED) \
UMA_HISTOGRAM_CUSTOM_COUNTS( \
HISTOGRAM_NAME, static_cast<int>(sqrt(DIST_SQUARED)), 1, 1500, 50)
void GestureTouchUMAHistogram::RecordTouchEvent(const MotionEvent& event) {
switch (event.GetAction()) {
case MotionEvent::Action::DOWN:
tool_type_ = event.GetToolType();
start_touch_position_ = gfx::Point(event.GetX(), event.GetY());
is_single_finger_ = true;
max_distance_from_start_squared_ = 0;
break;
case MotionEvent::Action::MOVE:
if (is_single_finger_) {
float cur_dist =
(start_touch_position_ - gfx::Point(event.GetX(), event.GetY()))
.LengthSquared();
if (cur_dist > max_distance_from_start_squared_)
max_distance_from_start_squared_ = cur_dist;
}
break;
case MotionEvent::Action::UP:
if (is_single_finger_) {
if (tool_type_ == MotionEvent::ToolType::FINGER) {
RECORD_MAX_DRAG_DISTANCE("Event.MaxDragDistance.FINGER",
max_distance_from_start_squared_);
} else if (tool_type_ == MotionEvent::ToolType::STYLUS) {
RECORD_MAX_DRAG_DISTANCE("Event.MaxDragDistance.STYLUS",
max_distance_from_start_squared_);
} else if (tool_type_ == MotionEvent::ToolType::ERASER) {
RECORD_MAX_DRAG_DISTANCE("Event.MaxDragDistance.ERASER",
max_distance_from_start_squared_);
}
is_single_finger_ = false;
}
break;
default:
// We expect either a POINTER_DOWN (when a secondary pointer became
// active) or a CANCEL (when an active pointer becomes invalid).
is_single_finger_ = false;
}
}
UMAEventType GestureTouchUMAHistogram::UMAEventTypeFromEvent(
const GestureEventData& gesture) {
switch (gesture.type()) {
case EventType::kTouchReleased:
return UMA_ET_TOUCH_RELEASED;
case EventType::kTouchPressed:
return UMA_ET_TOUCH_PRESSED;
case EventType::kTouchMoved:
return UMA_ET_TOUCH_MOVED;
case EventType::kTouchCancelled:
return UMA_ET_TOUCH_CANCELLED;
case EventType::kGestureScrollBegin:
return UMA_ET_GESTURE_SCROLL_BEGIN;
case EventType::kGestureScrollEnd:
return UMA_ET_GESTURE_SCROLL_END;
case EventType::kGestureScrollUpdate: {
int touch_points = gesture.details.touch_points();
if (touch_points == 1)
return UMA_ET_GESTURE_SCROLL_UPDATE;
else if (touch_points == 2)
return UMA_ET_GESTURE_SCROLL_UPDATE_2;
else if (touch_points == 3)
return UMA_ET_GESTURE_SCROLL_UPDATE_3;
return UMA_ET_GESTURE_SCROLL_UPDATE_4P;
}
case EventType::kGestureTap: {
int tap_count = gesture.details.tap_count();
if (tap_count == 1)
return UMA_ET_GESTURE_TAP;
if (tap_count == 2)
return UMA_ET_GESTURE_DOUBLE_TAP;
if (tap_count == 3)
return UMA_ET_GESTURE_TRIPLE_TAP;
NOTREACHED() << "Received tap with tapcount " << tap_count;
}
case EventType::kGestureTapDown:
return UMA_ET_GESTURE_TAP_DOWN;
case EventType::kGestureBegin:
return UMA_ET_GESTURE_BEGIN;
case EventType::kGestureEnd:
return UMA_ET_GESTURE_END;
case EventType::kGestureTwoFingerTap:
return UMA_ET_GESTURE_TWO_FINGER_TAP;
case EventType::kGesturePinchBegin:
return UMA_ET_GESTURE_PINCH_BEGIN;
case EventType::kGesturePinchEnd:
return UMA_ET_GESTURE_PINCH_END;
case EventType::kGesturePinchUpdate: {
int touch_points = gesture.details.touch_points();
if (touch_points >= 4)
return UMA_ET_GESTURE_PINCH_UPDATE_4P;
else if (touch_points == 3)
return UMA_ET_GESTURE_PINCH_UPDATE_3;
return UMA_ET_GESTURE_PINCH_UPDATE;
}
case EventType::kGestureShortPress:
return UMA_ET_GESTURE_SHORT_PRESS;
case EventType::kGestureLongPress:
return UMA_ET_GESTURE_LONG_PRESS;
case EventType::kGestureLongTap:
return UMA_ET_GESTURE_LONG_TAP;
case EventType::kGestureSwipe: {
int touch_points = gesture.details.touch_points();
if (touch_points == 1)
return UMA_ET_GESTURE_SWIPE_1;
else if (touch_points == 2)
return UMA_ET_GESTURE_SWIPE_2;
else if (touch_points == 3)
return UMA_ET_GESTURE_SWIPE_3;
return UMA_ET_GESTURE_SWIPE_4P;
}
case EventType::kGestureTapCancel:
return UMA_ET_GESTURE_TAP_CANCEL;
case EventType::kGestureShowPress:
return UMA_ET_GESTURE_SHOW_PRESS;
case EventType::kScroll:
return UMA_ET_SCROLL;
case EventType::kScrollFlingStart:
return UMA_ET_SCROLL_FLING_START;
case EventType::kScrollFlingCancel:
return UMA_ET_SCROLL_FLING_CANCEL;
case EventType::kGestureTapUnconfirmed:
return UMA_ET_GESTURE_TAP_UNCONFIRMED;
case EventType::kGestureDoubleTap:
return UMA_ET_GESTURE_DOUBLE_TAP;
default:
NOTREACHED();
}
}
} // namespace ui
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