Adding XMPP ping functionality to CLoudPrint. XMPP ping and timeout is controlled thorugh Service S…

jingle/notifier/listener/xmpp_push_client.h

 // Copyright (c) 2012 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 JINGLE_NOTIFIER_LISTENER_XMPP_PUSH_CLIENT_H_
 #define JINGLE_NOTIFIER_LISTENER_XMPP_PUSH_CLIENT_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "jingle/notifier/base/notifier_options.h"
 #include "jingle/notifier/communicator/login.h"
 #include "jingle/notifier/listener/notification_defines.h"
 #include "jingle/notifier/listener/push_client.h"
 #include "jingle/notifier/listener/push_notifications_listen_task.h"
 #include "jingle/notifier/listener/push_notifications_subscribe_task.h"
+#include "jingle/notifier/listener/send_ping_task.h"
 #include "talk/xmpp/xmppclientsettings.h"
 
 namespace buzz {
 class XmppTaskParentInterface;
 }  // namespace buzz
 
 namespace notifier {
 
 // This class implements a client for the XMPP google:push protocol.
 //
 // This class must be used on a single thread.
 class XmppPushClient :
       public PushClient,
       public Login::Delegate,
       public PushNotificationsListenTaskDelegate,
-      public PushNotificationsSubscribeTaskDelegate {
+      public PushNotificationsSubscribeTaskDelegate,
+      public SendPingTaskDelegate {
  public:
   explicit XmppPushClient(const NotifierOptions& notifier_options);
   virtual ~XmppPushClient();
 
   // PushClient implementation.
   virtual void AddObserver(PushClientObserver* observer) OVERRIDE;
   virtual void RemoveObserver(PushClientObserver* observer) OVERRIDE;
   virtual void UpdateSubscriptions(
       const SubscriptionList& subscriptions) OVERRIDE;
   virtual void UpdateCredentials(
       const std::string& email, const std::string& token) OVERRIDE;
   virtual void SendNotification(const Notification& notification) OVERRIDE;
+  virtual void SendPing() OVERRIDE;
 
   // Login::Delegate implementation.
   virtual void OnConnect(
       base::WeakPtr<buzz::XmppTaskParentInterface> base_task) OVERRIDE;
   virtual void OnTransientDisconnection() OVERRIDE;
   virtual void OnCredentialsRejected() OVERRIDE;
 
   // PushNotificationsListenTaskDelegate implementation.
   virtual void OnNotificationReceived(
       const Notification& notification) OVERRIDE;
 
   // PushNotificationsSubscribeTaskDelegate implementation.
   virtual void OnSubscribed() OVERRIDE;
   virtual void OnSubscriptionError() OVERRIDE;
 
+  // SendPingTaskDelegate implementation.
+  virtual void OnPingResponseReceived() OVERRIDE;
+
  private:
   base::ThreadChecker thread_checker_;
   const NotifierOptions notifier_options_;
   ObserverList<PushClientObserver> observers_;
 
   // XMPP connection settings.
   SubscriptionList subscriptions_;
   buzz::XmppClientSettings xmpp_settings_;
 
   scoped_ptr<notifier::Login> login_;
 
   // The XMPP connection.
   base::WeakPtr<buzz::XmppTaskParentInterface> base_task_;
 
   std::vector<Notification> pending_notifications_to_send_;
 
   DISALLOW_COPY_AND_ASSIGN(XmppPushClient);
 };
 
 }  // namespace notifier
 
 #endif  // JINGLE_NOTIFIER_LISTENER_XMPP_PUSH_CLIENT_H_