content/public/browser/notification_observer.h

   1 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_
   6 #define CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_
   7
   8 #include "content/common/content_export.h"
   9
  10 namespace content {
  11
  12 class NotificationDetails;
  13 class NotificationSource;
  14
  15 // This is the base class for notification observers. When a matching
  16 // notification is posted to the notification service, Observe is called.
  17 class CONTENT_EXPORT NotificationObserver {
  18  public:
  19   virtual void Observe(int type,
  20                        const NotificationSource& source,
  21                        const NotificationDetails& details) = 0;
  22
  23  protected:
  24   virtual ~NotificationObserver() {}
  25 };
  26
  27 }  // namespace content
  28
  29 #endif  // CONTENT_PUBLIC_BROWSER_NOTIFICATION_OBSERVER_H_