components/proximity_auth/connection_observer.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 COMPONENTS_PROXIMITY_AUTH_CONNECTION_OBSERVER_H
   6 #define COMPONENTS_PROXIMITY_AUTH_CONNECTION_OBSERVER_H
   7
   8 #include "components/proximity_auth/connection.h"
   9
  10 namespace proximity_auth {
  11
  12 class WireMessage;
  13
  14 // An interface for observing events that happen on a Connection.
  15 class ConnectionObserver {
  16  public:
  17   virtual ~ConnectionObserver() {}
  18
  19   // Called when the |connection|'s status changes from |old_status| to
  20   // |new_status|. The |connectoin| is guaranteed to be non-null.
  21   virtual void OnConnectionStatusChanged(Connection* connection,
  22                                          Connection::Status old_status,
  23                                          Connection::Status new_status) {}
  24
  25   // Called when a |message| is received from a remote device over the
  26   // |connection|.
  27   virtual void OnMessageReceived(const Connection& connection,
  28                                  const WireMessage& message) {}
  29
  30   // Called after a |message| is sent to the remote device over the
  31   // |connection|. |success| is |true| iff the message is sent successfully.
  32   virtual void OnSendCompleted(const Connection& connection,
  33                                const WireMessage& message,
  34                                bool success) {}
  35 };
  36
  37 }  // namespace proximity_auth
  38
  39 #endif  // COMPONENTS_PROXIMITY_AUTH_CONNECTION_OBSERVER_H