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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_MESSAGE_CENTER_MESSAGE_CENTER_STATS_COLLECTOR_H_
#define UI_MESSAGE_CENTER_MESSAGE_CENTER_STATS_COLLECTOR_H_
#include <array>
#include <set>
#include <string>
#include "base/memory/raw_ptr.h"
#include "ui/message_center/message_center.h"
#include "ui/message_center/message_center_observer.h"
#include "ui/message_center/message_center_types.h"
#include "ui/message_center/public/cpp/notifier_id.h"
namespace message_center {
class MessageCenter;
// MessageCenterStatsCollector sends both raw and per-notification statistics
// to the UMA servers, if the user has opted in. It observes the message center
// to gather its data.
class MessageCenterStatsCollector : public MessageCenterObserver {
public:
enum NotificationActionType {
NOTIFICATION_ACTION_UNKNOWN,
NOTIFICATION_ACTION_ADD,
NOTIFICATION_ACTION_UPDATE,
NOTIFICATION_ACTION_CLICK,
NOTIFICATION_ACTION_BUTTON_CLICK,
NOTIFICATION_ACTION_DISPLAY,
NOTIFICATION_ACTION_CLOSE_BY_USER,
NOTIFICATION_ACTION_CLOSE_BY_SYSTEM,
// NOTE: Add new action types only immediately above this line. Also,
// make sure the enum list in tools/histogram/histograms.xml is
// updated with any change in here.
NOTIFICATION_ACTION_COUNT
};
explicit MessageCenterStatsCollector(MessageCenter* message_center);
MessageCenterStatsCollector(const MessageCenterStatsCollector&) = delete;
MessageCenterStatsCollector& operator=(const MessageCenterStatsCollector&) =
delete;
~MessageCenterStatsCollector() override;
private:
// Represents the aggregate stats for each notification.
class NotificationStats {
public:
// Default constructor for map.
NotificationStats();
explicit NotificationStats(const std::string& id);
virtual ~NotificationStats();
// Called when we get an action from the message center.
void CollectAction(NotificationActionType type);
// Sends aggregate data to UMA.
void RecordAggregateStats();
private:
std::string id_;
std::array<bool, NOTIFICATION_ACTION_COUNT> actions_;
};
// Sends notifier type to UMA. Called when a notification is added.
void RecordNotifierType(NotifierType type);
// MessageCenterObserver
void OnNotificationAdded(const std::string& notification_id) override;
void OnNotificationRemoved(const std::string& notification_id,
bool by_user) override;
void OnNotificationUpdated(const std::string& notification_id) override;
void OnNotificationClicked(
const std::string& notification_id,
const std::optional<int>& button_index,
const std::optional<std::u16string>& reply) override;
void OnNotificationSettingsClicked(bool handled) override;
void OnNotificationDisplayed(const std::string& notification_id,
const DisplaySource source) override;
void OnCenterVisibilityChanged(Visibility visibility) override;
void OnQuietModeChanged(bool in_quiet_mode) override;
// Weak, global.
raw_ptr<MessageCenter> message_center_;
typedef std::map<std::string, NotificationStats> StatsCollection;
StatsCollection stats_;
};
} // namespace message_center
#endif // UI_MESSAGE_CENTER_MESSAGE_CENTER_STATS_COLLECTOR_H_
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