jingle/notifier/listener/push_notifications_subscribe_task.h

// Copyright (c) 2010 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.
//
// This class handles subscribing to the new Google push notifications.

#ifndef JINGLE_NOTIFIER_LISTENER_PUSH_NOTIFICATIONS_SUBSCRIBE_TASK_H_
#define JINGLE_NOTIFIER_LISTENER_PUSH_NOTIFICATIONS_SUBSCRIBE_TASK_H_

#include <string>
#include <vector>

#include "base/gtest_prod_util.h"
#include "talk/xmllite/xmlelement.h"
#include "talk/xmpp/xmpptask.h"

namespace notifier {
class PushNotificationsSubscribeTask : public buzz::XmppTask {
 public:
  class Delegate {
   public:
     virtual ~Delegate() {}
     virtual void OnSubscribed() = 0;
     virtual void OnSubscriptionError() = 0;
  };

  struct PushSubscriptionInfo {
    std::string channel;
    std::string from;
  };

  PushNotificationsSubscribeTask(TaskParent* parent,
      const std::vector<PushSubscriptionInfo>& channels_list,
      Delegate* delegate);
  virtual ~PushNotificationsSubscribeTask();

  // Overridden from XmppTask.
  virtual int ProcessStart();
  virtual int ProcessResponse();
  virtual bool HandleStanza(const buzz::XmlElement* stanza);

 private:
  // Assembles an Xmpp stanza which can be sent to subscribe to notifications.
  static buzz::XmlElement* MakeSubscriptionMessage(
      const std::vector<PushSubscriptionInfo>& channels_list,
      const buzz::Jid& jid, const std::string& task_id);

  std::vector<PushSubscriptionInfo> channels_list_;
  Delegate* delegate_;

  FRIEND_TEST_ALL_PREFIXES(PushNotificationsSubscribeTaskTest,
                           MakeSubscriptionMessage);

  DISALLOW_COPY_AND_ASSIGN(PushNotificationsSubscribeTask);
};

typedef PushNotificationsSubscribeTask::Delegate
    PushNotificationsSubscribeTaskDelegate;


}  // namespace notifier

#endif  // JINGLE_NOTIFIER_LISTENER_PUSH_NOTIFICATIONS_SUBSCRIBE_TASK_H_