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// Copyright (c) 2011 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_JINGLE_GLUE_JINGLE_INFO_REQUEST_H_
#define REMOTING_JINGLE_GLUE_JINGLE_INFO_REQUEST_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/callback_old.h"
#include "base/memory/scoped_ptr.h"
class Task;
namespace buzz {
class XmlElement;
} // namespace buzz
namespace talk_base {
class SocketAddress;
} // namespace talk_base
namespace remoting {
class IqRequest;
// JingleInfoRequest handles making an IQ request to the Google talk network for
// discovering stun/relay information for use in establishing a Jingle
// connection.
//
// Clients should instantiate this class, and set a callback to receive the
// configuration information. The query will be made when Run() is called. The
// query is finisehd when the |done| task given to Run() is invokved.
//
// This class is not threadsafe and should be used on the same thread it is
// created on.
//
// TODO(ajwong): Add support for a timeout.
class JingleInfoRequest {
public:
// Callback to receive the Jingle configuration settings. The argumetns are
// passed by pointer so the receive may call swap on them. The receiver does
// NOT own the arguments, which are guaranteed only to be alive for the
// duration of the callback.
typedef Callback3<const std::string&, const std::vector<std::string>&,
const std::vector<talk_base::SocketAddress>&>::Type
OnJingleInfoCallback;
explicit JingleInfoRequest(IqRequest* request);
~JingleInfoRequest();
void Run(Task* done);
void SetCallback(OnJingleInfoCallback* callback);
void DetachCallback();
private:
void OnResponse(const buzz::XmlElement* stanza);
scoped_ptr<IqRequest> request_;
scoped_ptr<OnJingleInfoCallback> on_jingle_info_cb_;
scoped_ptr<Task> done_cb_;
DISALLOW_COPY_AND_ASSIGN(JingleInfoRequest);
};
} // namespace remoting
#endif // REMOTING_JINGLE_GLUE_JINGLE_INFO_REQUEST_H_
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