ash/shelf/shelf_button_pressed_metric_tracker.cc

   1 // Copyright 2015 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 "ash/shelf/shelf_button_pressed_metric_tracker.h"
   6
   7 #include "ash/metrics/user_metrics_recorder.h"
   8 #include "ash/shell.h"
   9 #include "base/metrics/histogram_macros.h"
  10 #include "base/time/default_tick_clock.h"
  11 #include "ui/views/controls/button/button.h"
  12
  13 namespace ash {
  14
  15 const char ShelfButtonPressedMetricTracker::
  16     kTimeBetweenWindowMinimizedAndActivatedActionsHistogramName[] =
  17         "Ash.Shelf.TimeBetweenWindowMinimizedAndActivatedActions";
  18
  19 ShelfButtonPressedMetricTracker::ShelfButtonPressedMetricTracker()
  20     : tick_clock_(new base::DefaultTickClock()),
  21       time_of_last_minimize_(base::TimeTicks()),
  22       last_minimized_source_button_(nullptr) {
  23 }
  24
  25 ShelfButtonPressedMetricTracker::~ShelfButtonPressedMetricTracker() {
  26 }
  27
  28 void ShelfButtonPressedMetricTracker::ButtonPressed(
  29     const ui::Event& event,
  30     const views::Button* sender,
  31     ShelfItemDelegate::PerformedAction performed_action) {
  32   RecordButtonPressedSource(event);
  33   RecordButtonPressedAction(performed_action);
  34
  35   switch (performed_action) {
  36     case ShelfItemDelegate::kExistingWindowMinimized:
  37       SetMinimizedData(sender);
  38       break;
  39     case ShelfItemDelegate::kExistingWindowActivated:
  40       if (IsSubsequentActivationEvent(sender))
  41         RecordTimeBetweenMinimizedAndActivated();
  42       break;
  43     default:
  44       break;
  45   }
  46
  47   if (performed_action != ShelfItemDelegate::kExistingWindowMinimized)
  48     ResetMinimizedData();
  49 }
  50
  51 void ShelfButtonPressedMetricTracker::RecordButtonPressedSource(
  52     const ui::Event& event) {
  53   if (event.IsMouseEvent()) {
  54     Shell::GetInstance()->metrics()->RecordUserMetricsAction(
  55         UMA_LAUNCHER_BUTTON_PRESSED_WITH_MOUSE);
  56   } else if (event.IsGestureEvent()) {
  57     Shell::GetInstance()->metrics()->RecordUserMetricsAction(
  58         UMA_LAUNCHER_BUTTON_PRESSED_WITH_TOUCH);
  59   }
  60 }
  61
  62 void ShelfButtonPressedMetricTracker::RecordButtonPressedAction(
  63     ShelfItemDelegate::PerformedAction performed_action) {
  64   switch (performed_action) {
  65     case ShelfItemDelegate::kNoAction:
  66     case ShelfItemDelegate::kAppListMenuShown:
  67       break;
  68     case ShelfItemDelegate::kNewWindowCreated:
  69       Shell::GetInstance()->metrics()->RecordUserMetricsAction(
  70           UMA_LAUNCHER_LAUNCH_TASK);
  71       break;
  72     case ShelfItemDelegate::kExistingWindowActivated:
  73       Shell::GetInstance()->metrics()->RecordUserMetricsAction(
  74           UMA_LAUNCHER_SWITCH_TASK);
  75       break;
  76     case ShelfItemDelegate::kExistingWindowMinimized:
  77       Shell::GetInstance()->metrics()->RecordUserMetricsAction(
  78           UMA_LAUNCHER_MINIMIZE_TASK);
  79       break;
  80   }
  81 }
  82
  83 void ShelfButtonPressedMetricTracker::RecordTimeBetweenMinimizedAndActivated() {
  84   UMA_HISTOGRAM_TIMES(
  85       kTimeBetweenWindowMinimizedAndActivatedActionsHistogramName,
  86       tick_clock_->NowTicks() - time_of_last_minimize_);
  87 }
  88
  89 bool ShelfButtonPressedMetricTracker::IsSubsequentActivationEvent(
  90     const views::Button* sender) const {
  91   return time_of_last_minimize_ != base::TimeTicks() &&
  92          last_minimized_source_button_ == sender;
  93 }
  94
  95 void ShelfButtonPressedMetricTracker::SetMinimizedData(
  96     const views::Button* sender) {
  97   last_minimized_source_button_ = sender;
  98   time_of_last_minimize_ = tick_clock_->NowTicks();
  99 }
 100
 101 void ShelfButtonPressedMetricTracker::ResetMinimizedData() {
 102   last_minimized_source_button_ = nullptr;
 103   time_of_last_minimize_ = base::TimeTicks();
 104 }
 105
 106 }  // namespace ash