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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_METRICS_RECORDER_H_
#define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_METRICS_RECORDER_H_
#include "base/time/time.h"
namespace task_manager {
// %s represents the ith process being ended.
// i.e. FirstProcessEnded, SecondProcessEnded, ... up to (and including) the
// Fifth process. Any process after the fifth one is discarded and not recorded.
inline constexpr char kTimeToEndProcessHistogram[] =
"TaskManager.%sProcessEnded.ElapsedTime";
inline constexpr char kClosedElapsedTimeHistogram[] =
"TaskManager.Closed.ElapsedTime";
inline constexpr char kClosedTabElapsedTimeHistogram[] =
"TaskManager.Closed.%s.ElapsedTime";
inline constexpr char kStartActionHistogram[] = "TaskManager.Opened";
// Represents how the Task Manager was started.
// Used for histograms. Current values should not be renumbered or removed.
// Please keep in sync with "StartAction" (see lint).
// LINT.IfChange(StartAction)
enum class StartAction {
kOther = 0,
kContextMenu = 1,
kMoreTools = 2,
kShortcut = 3,
kMainMenu = 4,
kMaxValue = kMainMenu,
};
// LINT.ThenChange(//tools/metrics/histograms/metadata/task_manager/enums.xml:StartAction)
// Not an enum used in UMA, rather it's a loose mapping to DisplayCategory.
enum class CategoryRecord {
kOther = 0,
kTabsAndExtensions = 1,
kBrowser = 2,
kSystem = 3,
kAll = 4,
kMaxValue = kAll,
};
// Records metrics and events that happen on Task Manager.
void RecordNewOpenEvent(StartAction action);
void RecordCloseEvent(const base::TimeTicks& start_time,
const base::TimeTicks& end_time);
void RecordEndProcessEvent(const base::TimeTicks& start_time,
const base::TimeTicks& end_time,
size_t end_process_count);
void RecordTabSwitchEvent(CategoryRecord old_category,
const base::TimeDelta& time_spent);
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_METRICS_RECORDER_H_
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