| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/notifications/google_now_notification_stats_collector.h" |
| |
| #include <string> |
| |
| #include "base/metrics/sparse_histogram.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/notifications/extension_welcome_notification.h" |
| #include "chrome/browser/notifications/notification.h" |
| #include "chrome/browser/notifications/notification_ui_manager.h" |
| #include "content/public/browser/user_metrics.h" |
| #include "ui/message_center/notification.h" |
| |
| namespace { |
| const int kNotificationsMaxCount = 20; |
| } |
| |
| // TODO(dewittj) remove the dependency on the MessageCenter because this |
| // violates layering. |
| GoogleNowNotificationStatsCollector::GoogleNowNotificationStatsCollector( |
| message_center::MessageCenter* message_center) |
| : message_center_(message_center) { |
| message_center_->AddObserver(this); |
| } |
| |
| GoogleNowNotificationStatsCollector::~GoogleNowNotificationStatsCollector() { |
| message_center_->RemoveObserver(this); |
| } |
| |
| void GoogleNowNotificationStatsCollector::OnNotificationDisplayed( |
| const std::string& notification_id, |
| const message_center::DisplaySource source) { |
| if ((source == message_center::DISPLAY_SOURCE_POPUP) && |
| IsVisibleNotificationIdForGoogleNow(notification_id)) { |
| content::RecordAction( |
| base::UserMetricsAction( |
| "GoogleNow.MessageCenter.NotificationPoppedUp")); |
| } |
| } |
| |
| void GoogleNowNotificationStatsCollector::OnCenterVisibilityChanged( |
| message_center::Visibility visibility) { |
| if (visibility == message_center::VISIBILITY_MESSAGE_CENTER) { |
| UMA_HISTOGRAM_SPARSE_SLOWLY( |
| "GoogleNow.MessageCenter.Displayed.NotificationsVisible", |
| std::min(CountVisibleGoogleNowNotifications(), kNotificationsMaxCount)); |
| } |
| } |
| |
| bool GoogleNowNotificationStatsCollector::IsVisibleNotificationIdForGoogleNow( |
| const std::string& notification_id) { |
| bool isGoogleNowNotification = false; |
| const message_center::Notification* const notification = |
| message_center::MessageCenter::Get()->FindVisibleNotificationById( |
| notification_id); |
| if (notification) { |
| isGoogleNowNotification = |
| ((notification->notifier_id().type == |
| message_center::NotifierId::APPLICATION) && |
| (notification->notifier_id().id == |
| ExtensionWelcomeNotification::kChromeNowExtensionID)); |
| } |
| return isGoogleNowNotification; |
| } |
| |
| int GoogleNowNotificationStatsCollector::CountVisibleGoogleNowNotifications() { |
| typedef message_center::NotificationList::Notifications Notifications; |
| const Notifications visible_notifications = |
| message_center_->GetVisibleNotifications(); |
| int google_now_notification_count = 0; |
| for (Notifications::iterator iter = visible_notifications.begin(); |
| iter != visible_notifications.end(); |
| ++iter) { |
| if ((*iter)->notifier_id().id == |
| ExtensionWelcomeNotification::kChromeNowExtensionID) |
| google_now_notification_count++; |
| } |
| return google_now_notification_count; |
| } |