components/drive/drive_notification_observer.h

   1 // Copyright (c) 2013 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 COMPONENTS_DRIVE_DRIVE_NOTIFICATION_OBSERVER_H_
   6 #define COMPONENTS_DRIVE_DRIVE_NOTIFICATION_OBSERVER_H_
   7
   8 namespace drive {
   9
  10 // Interface for classes which need to know when to check Google Drive for
  11 // updates.
  12 class DriveNotificationObserver {
  13  public:
  14   // Called when a notification from Google Drive is received.
  15   virtual void OnNotificationReceived() = 0;
  16
  17   // Called when XMPP-based push notification is enabled or disabled.
  18   virtual void OnPushNotificationEnabled(bool enabled) {}
  19
  20  protected:
  21   virtual ~DriveNotificationObserver() {}
  22 };
  23
  24 }  // namespace drive
  25
  26 #endif  // COMPONENTS_DRIVE_DRIVE_NOTIFICATION_OBSERVER_H_