chromeos: Move files in //ash/common to //ash, part 2

ash/common/metrics/pointer_metrics_recorder.cc

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ash/common/metrics/pointer_metrics_recorder.h"
-
-#include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
-#include "ash/common/wm_shell.h"
-#include "ash/common/wm_window.h"
-#include "ash/shared/app_types.h"
-#include "base/metrics/histogram_macros.h"
-#include "ui/events/event_constants.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-
-namespace {
-
-// Form factor of the down event. This enum is used to back an UMA histogram
-// and new values should be inserted immediately above FORM_FACTOR_COUNT.
-enum class DownEventFormFactor {
-  CLAMSHELL = 0,
-  TOUCH_VIEW,
-  FORM_FACTOR_COUNT,
-};
-
-// Input type of the down event. This enum is used to back an UMA
-// histogram and new values should be inserted immediately above SOURCE_COUNT.
-enum class DownEventSource {
-  UNKNOWN = 0,
-  MOUSE,
-  STYLUS,
-  TOUCH,
-  SOURCE_COUNT,
-};
-
-int GetDestination(views::Widget* target) {
-  if (!target)
-    return static_cast<int>(AppType::OTHERS);
-
-  WmWindow* window = WmWindow::Get(target->GetNativeWindow());
-  DCHECK(window);
-  return window->GetAppType();
-}
-
-void RecordUMA(ui::EventPointerType type, views::Widget* target) {
-  DownEventFormFactor form_factor = DownEventFormFactor::CLAMSHELL;
-  if (ash::WmShell::Get()
-          ->maximize_mode_controller()
-          ->IsMaximizeModeWindowManagerEnabled()) {
-    form_factor = DownEventFormFactor::TOUCH_VIEW;
-  }
-  UMA_HISTOGRAM_ENUMERATION(
-      "Event.DownEventCount.PerFormFactor",
-      static_cast<base::HistogramBase::Sample>(form_factor),
-      static_cast<base::HistogramBase::Sample>(
-          DownEventFormFactor::FORM_FACTOR_COUNT));
-
-  DownEventSource input_type = DownEventSource::UNKNOWN;
-  switch (type) {
-    case ui::EventPointerType::POINTER_TYPE_UNKNOWN:
-      input_type = DownEventSource::UNKNOWN;
-      break;
-    case ui::EventPointerType::POINTER_TYPE_MOUSE:
-      input_type = DownEventSource::MOUSE;
-      break;
-    case ui::EventPointerType::POINTER_TYPE_PEN:
-      input_type = DownEventSource::STYLUS;
-      break;
-    case ui::EventPointerType::POINTER_TYPE_TOUCH:
-      input_type = DownEventSource::TOUCH;
-      break;
-    case ui::EventPointerType::POINTER_TYPE_ERASER:
-      input_type = DownEventSource::STYLUS;
-      break;
-  }
-
-  UMA_HISTOGRAM_ENUMERATION(
-      "Event.DownEventCount.PerInput",
-      static_cast<base::HistogramBase::Sample>(input_type),
-      static_cast<base::HistogramBase::Sample>(DownEventSource::SOURCE_COUNT));
-
-  UMA_HISTOGRAM_ENUMERATION("Event.DownEventCount.PerDestination",
-                            GetDestination(target), kAppCount);
-}
-
-}  // namespace
-
-PointerMetricsRecorder::PointerMetricsRecorder() {
-  ash::WmShell::Get()->AddPointerWatcher(
-      this, views::PointerWatcherEventTypes::BASIC);
-}
-
-PointerMetricsRecorder::~PointerMetricsRecorder() {
-  ash::WmShell::Get()->RemovePointerWatcher(this);
-}
-
-void PointerMetricsRecorder::OnPointerEventObserved(
-    const ui::PointerEvent& event,
-    const gfx::Point& location_in_screen,
-    views::Widget* target) {
-  if (event.type() == ui::ET_POINTER_DOWN)
-    RecordUMA(event.pointer_details().pointer_type, target);
-}
-
-}  // namespace ash