| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_HOST_HOST_CHANGE_NOTIFICATION_LISTENER_H |
| #define REMOTING_HOST_HOST_CHANGE_NOTIFICATION_LISTENER_H |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "remoting/signaling/signal_strategy.h" |
| |
| namespace jingle_xmpp { |
| class XmlElement; |
| } // namespace jingle_xmpp |
| |
| namespace remoting { |
| |
| // HostChangeNotificationListener listens for messages from the remoting bot |
| // indicating that its host entry has been changed in the directory. |
| // If a message is received indicating that the host was deleted, it uses the |
| // OnHostDeleted callback to shut down the host. |
| class HostChangeNotificationListener : public SignalStrategy::Listener { |
| public: |
| class Listener { |
| protected: |
| virtual ~Listener() {} |
| // Invoked when a notification that the host was deleted is received. |
| public: |
| virtual void OnHostDeleted() = 0; |
| }; |
| |
| // Both listener and signal_strategy are expected to outlive this object. |
| HostChangeNotificationListener(Listener* listener, |
| const std::string& host_id, |
| SignalStrategy* signal_strategy, |
| const std::string& directory_bot_jid); |
| ~HostChangeNotificationListener() override; |
| |
| // SignalStrategy::Listener interface. |
| void OnSignalStrategyStateChange(SignalStrategy::State state) override; |
| bool OnSignalStrategyIncomingStanza(const jingle_xmpp::XmlElement* stanza) override; |
| |
| private: |
| void OnHostDeleted(); |
| |
| Listener* listener_; |
| std::string host_id_; |
| SignalStrategy* signal_strategy_; |
| std::string directory_bot_jid_; |
| base::WeakPtrFactory<HostChangeNotificationListener> weak_factory_; |
| DISALLOW_COPY_AND_ASSIGN(HostChangeNotificationListener); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_HOST_HOST_CHANGE_NOTIFICATION_LISTENER_H |