Darnell Andries
e0d7161f7a
* Use `base::ElapsedTimer` where possible pt. 1 * Refactor `misc_metrics::UsageClock` to use `base::ElapsedTimer` * Address CodeHealth PR feedback
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
/* Copyright (c) 2025 The Brave Authors. All rights reserved.
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at https://mozilla.org/MPL/2.0/. */
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#ifndef BRAVE_BROWSER_MISC_METRICS_USAGE_CLOCK_H_
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#define BRAVE_BROWSER_MISC_METRICS_USAGE_CLOCK_H_
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#include <optional>
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#include "base/time/time.h"
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#include "base/timer/elapsed_timer.h"
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#include "chrome/browser/metrics/desktop_session_duration/desktop_session_duration_tracker.h"
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namespace misc_metrics {
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// A clock that advances when Chrome is in use.
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//
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// See metrics::DesktopSessionDurationTracker for how Chrome usage is tracked.
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// If metrics::DesktopSessionDurationTracker isn't initialized before this, the
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// clock will advance continuously, regardless of Chrome usage. This avoids
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// forcing all tests that indirectly depend on this to initialize
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// metrics::DesktopSessionDurationTracker.
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class UsageClock : public metrics::DesktopSessionDurationTracker::Observer {
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public:
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UsageClock();
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UsageClock(const UsageClock&) = delete;
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UsageClock& operator=(const UsageClock&) = delete;
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~UsageClock() override;
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// Returns the amount of Chrome usage time since this was instantiated.
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base::TimeDelta GetTotalUsageTime() const;
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// Returns true if Chrome is currently considered to be in use.
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bool IsInUse() const;
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private:
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// DesktopSessionDurationTracker::Observer:
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void OnSessionStarted(base::TimeTicks session_start) override;
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void OnSessionEnded(base::TimeDelta session_length,
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base::TimeTicks session_end) override;
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// The total time elapsed in completed usage sessions. The duration of the
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// current usage session, if any, must be added to this to get the total usage
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// time of Chrome.
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base::TimeDelta usage_time_in_completed_sessions_;
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// Elapsed timer for the current session, or nullopt if not currently in a
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// session.
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std::optional<base::ElapsedTimer> current_session_elapsed_timer_;
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};
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} // namespace misc_metrics
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#endif // BRAVE_BROWSER_MISC_METRICS_USAGE_CLOCK_H_
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