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// Copyright 2020 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_ASH_CHILD_ACCOUNTS_FAMILY_USER_CHROME_ACTIVITY_METRICS_H_
#define CHROME_BROWSER_ASH_CHILD_ACCOUNTS_FAMILY_USER_CHROME_ACTIVITY_METRICS_H_
#include <set>
#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "chrome/browser/ash/child_accounts/family_user_metrics_service.h"
#include "chrome/browser/ash/child_accounts/time_limits/app_service_wrapper.h"
#include "chrome/browser/ash/child_accounts/usage_time_state_notifier.h"
namespace base {
class UnguessableToken;
} // namespace base
class PrefRegistrySimple;
class PrefService;
class Profile;
namespace ash {
// This class records: FamilyUser.ChromeBrowserEngagement.Duration. It is the
// daily sum of user's active Chrome browser time in milliseconds. Recorded at
// the beginning of the first active Chrome OS session on a subsequent day.
class FamilyUserChromeActivityMetrics
: public app_time::AppServiceWrapper::EventListener,
public UsageTimeStateNotifier::Observer,
public FamilyUserMetricsService::Observer {
public:
static const char kChromeBrowserEngagementDurationHistogramName[];
static void RegisterProfilePrefs(PrefRegistrySimple* registry);
explicit FamilyUserChromeActivityMetrics(Profile* profile);
FamilyUserChromeActivityMetrics(const FamilyUserChromeActivityMetrics&) =
delete;
FamilyUserChromeActivityMetrics& operator=(
const FamilyUserChromeActivityMetrics&) = delete;
~FamilyUserChromeActivityMetrics() override;
// FamilyUserMetricsService::Observer:
void OnNewDay() override;
void SetActiveSessionStartForTesting(base::Time time);
private:
// AppServiceWrapper::EventListener:
// When the screen goes from off to on or device goes idle
// to active, this function does not get called. OnUsageTimeStateChange() gets
// called instead.
void OnAppActive(const app_time::AppId& app_id,
const base::UnguessableToken& instance_id,
base::Time timestamp) override;
// When the screen goes from on to off or device goes active
// to idle, this function does not get called. OnUsageTimeStateChange() gets
// called instead.
void OnAppInactive(const app_time::AppId& app_id,
const base::UnguessableToken& instance_id,
base::Time timestamp) override;
// UsageTimeStateNotifier::Observer:
// When the user signs out, this function doesn't get called and
// UsageTimeStateNotifier::UsageTimeState doesn't change to inactive.
// OnAppInactive will be called.
void OnUsageTimeStateChange(
UsageTimeStateNotifier::UsageTimeState state) override;
// Called when user engagement of browser changes. Saves duration data to
// prefs or report to UMA.
void UpdateUserEngagement(bool is_user_active);
const raw_ptr<PrefService> pref_service_;
app_time::AppServiceWrapper app_service_wrapper_;
// The time when the user becomes active.
base::Time active_duration_start_;
// A set of active browser instances. When a new Chrome browser instance gets
// created or activated, OnAppActive adds that instance to the set. When the
// Chrome browser instance gets destroyed or deactivated, OnAppInactive might
// remove that instance from the set.
std::set<base::UnguessableToken> active_browser_instances_;
};
} // namespace ash
#endif // CHROME_BROWSER_ASH_CHILD_ACCOUNTS_FAMILY_USER_CHROME_ACTIVITY_METRICS_H_
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