Upstream version 7.36.149.0
[platform/framework/web/crosswalk.git] / src / chrome / browser / notifications / google_now_notification_stats_collector.h
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 #ifndef CHROME_BROWSER_NOTIFICATIONS_GOOGLE_NOW_NOTIFICATION_STATS_COLLECTOR_H_
6 #define CHROME_BROWSER_NOTIFICATIONS_GOOGLE_NOW_NOTIFICATION_STATS_COLLECTOR_H_
7
8 #include <string>
9
10 #include "ui/message_center/message_center.h"
11 #include "ui/message_center/message_center_observer.h"
12 #include "ui/message_center/message_center_types.h"
13
14 // The Google Now Notification Stats Collector listens for message center
15 // events and records stats about Google Now specific notifications.
16 class GoogleNowNotificationStatsCollector
17     : public message_center::MessageCenterObserver {
18  public:
19   explicit GoogleNowNotificationStatsCollector(
20       message_center::MessageCenter* message_center);
21   virtual ~GoogleNowNotificationStatsCollector();
22
23  private:
24   // MessageCenterObserver
25   virtual void OnNotificationDisplayed(
26       const std::string& notification_id,
27       const message_center::DisplaySource source) OVERRIDE;
28   virtual void OnCenterVisibilityChanged(
29       message_center::Visibility visibility) OVERRIDE;
30
31   // Counts the number of Google Now Notifications in the message center.
32   int CountVisibleGoogleNowNotifications();
33
34   // Returns true if the notification ID is for Google Now.
35   bool IsNotificationIdForGoogleNow(const std::string& notification_id);
36
37   // Weak, global.
38   message_center::MessageCenter* message_center_;
39
40   DISALLOW_COPY_AND_ASSIGN(GoogleNowNotificationStatsCollector);
41 };
42
43 #endif  // CHROME_BROWSER_NOTIFICATIONS_GOOGLE_NOW_NOTIFICATION_STATS_COLLECTOR_H_