1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "chrome/browser/notifications/google_now_notification_stats_collector.h" 6 7 #include <string> 8 9 #include "base/metrics/sparse_histogram.h" 10 #include "chrome/browser/browser_process.h" 11 #include "chrome/browser/notifications/notification.h" 12 #include "chrome/browser/notifications/notification_ui_manager.h" 13 #include "content/public/browser/user_metrics.h" 14 #include "ui/message_center/notification.h" 15 16 namespace { 17 const char kChromeNowExtensionID[] = "pafkbggdmjlpgkdkcbjmhmfcdpncadgh"; 18 const int kNotificationsMaxCount = 20; 19 } 20 GoogleNowNotificationStatsCollector(message_center::MessageCenter * message_center)21GoogleNowNotificationStatsCollector::GoogleNowNotificationStatsCollector( 22 message_center::MessageCenter* message_center) 23 : message_center_(message_center) { 24 message_center_->AddObserver(this); 25 } 26 ~GoogleNowNotificationStatsCollector()27GoogleNowNotificationStatsCollector::~GoogleNowNotificationStatsCollector() { 28 message_center_->RemoveObserver(this); 29 } 30 OnNotificationDisplayed(const std::string & notification_id,const message_center::DisplaySource source)31void GoogleNowNotificationStatsCollector::OnNotificationDisplayed( 32 const std::string& notification_id, 33 const message_center::DisplaySource source) { 34 if ((source == message_center::DISPLAY_SOURCE_POPUP) && 35 IsNotificationIdForGoogleNow(notification_id)) { 36 content::RecordAction( 37 base::UserMetricsAction( 38 "GoogleNow.MessageCenter.NotificationPoppedUp")); 39 } 40 } 41 OnCenterVisibilityChanged(message_center::Visibility visibility)42void GoogleNowNotificationStatsCollector::OnCenterVisibilityChanged( 43 message_center::Visibility visibility) { 44 if (visibility == message_center::VISIBILITY_MESSAGE_CENTER) { 45 UMA_HISTOGRAM_SPARSE_SLOWLY( 46 "GoogleNow.MessageCenter.Displayed.NotificationsVisible", 47 std::min(CountVisibleGoogleNowNotifications(), kNotificationsMaxCount)); 48 } 49 } 50 IsNotificationIdForGoogleNow(const std::string & notification_id)51bool GoogleNowNotificationStatsCollector::IsNotificationIdForGoogleNow( 52 const std::string& notification_id) { 53 bool isGoogleNowNotification = false; 54 const Notification* const notification = 55 g_browser_process->notification_ui_manager()->FindById(notification_id); 56 if (notification) { 57 isGoogleNowNotification = 58 ((notification->notifier_id().type == 59 message_center::NotifierId::APPLICATION) && 60 (notification->notifier_id().id == kChromeNowExtensionID)); 61 } 62 return isGoogleNowNotification; 63 } 64 CountVisibleGoogleNowNotifications()65int GoogleNowNotificationStatsCollector::CountVisibleGoogleNowNotifications() { 66 typedef message_center::NotificationList::Notifications Notifications; 67 const Notifications visible_notifications = 68 message_center_->GetVisibleNotifications(); 69 int google_now_notification_count = 0; 70 for (Notifications::iterator iter = visible_notifications.begin(); 71 iter != visible_notifications.end(); 72 ++iter) { 73 if ((*iter)->notifier_id().id == kChromeNowExtensionID) 74 google_now_notification_count++; 75 } 76 return google_now_notification_count; 77 } 78