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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_METRICS_UI_METRICS_RECORDER_H_
#define ASH_METRICS_UI_METRICS_RECORDER_H_
#include <optional>
#include <vector>
#include "ash/ash_export.h"
#include "base/sequence_checker.h"
#include "base/time/time.h"
#include "cc/metrics/custom_metrics_recorder.h"
#include "cc/metrics/event_latency_tracker.h"
namespace ash {
// Records metrics for ash UI. Note this class is not thread-safe.
class ASH_EXPORT UiMetricsRecorder : public cc::CustomMetricRecorder {
public:
UiMetricsRecorder();
~UiMetricsRecorder() override;
// Invoked on a user login. This is expected to be called after cryptohome
// mount but before user profile loading.
void OnUserLoggedIn();
// Invoked after post-login animation finishes.
void OnPostLoginAnimationFinish();
// cc::CustomMetricRecorder:
void ReportPercentDroppedFramesInOneSecondWindow2(double percent) override;
void ReportEventLatency(
std::vector<cc::EventLatencyTracker::LatencyData> latencies) override;
private:
// State to split "Ash.Smoothness.PercentDroppedFrames_1sWindow".
enum class State {
kBeforeLogin,
kDuringLogin,
kInSession,
};
State state_ = State::kBeforeLogin;
SEQUENCE_CHECKER(sequence_checker_);
// Login time and session start time of the primary user.
std::optional<base::TimeTicks> user_logged_in_time_;
std::optional<base::TimeTicks> user_session_start_time_;
std::optional<base::TimeTicks> last_good_dropped_frame_time_;
};
} // namespace ash
#endif // ASH_METRICS_UI_METRICS_RECORDER_H_
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