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// 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.
#ifndef REMOTING_JINGLE_GLUE_IQ_REQUEST_H_
#define REMOTING_JINGLE_GLUE_IQ_REQUEST_H_
#include <string>
#include "base/callback.h"
#include "base/gtest_prod_util.h"
#include "third_party/libjingle/source/talk/xmpp/xmppengine.h"
namespace remoting {
class JingleClient;
// IqRequest class can be used to send an IQ stanza and then receive reply
// stanza for that request. It sends outgoing stanza when SendIq() is called,
// after that it forwards incoming reply stanza to the callback set with
// set_callback(). If multiple IQ stanzas are send with SendIq() then only reply
// to the last one will be received.
// The class must be used on the jingle thread only.
// TODO(sergeyu): Implement unittests for this class.
class IqRequest : private buzz::XmppIqHandler {
public:
typedef Callback1<const buzz::XmlElement*>::Type ReplyCallback;
explicit IqRequest(JingleClient* jingle_client);
virtual ~IqRequest();
// Sends stanza of type |type| to |addressee|. |iq_body| contains body of
// the stanza. Ownership of |iq_body| is transfered to IqRequest. Must
// be called on the jingle thread.
void SendIq(const std::string& type, const std::string& addressee,
buzz::XmlElement* iq_body);
// Sets callback that is called when reply stanza is received. Callback
// is called on the jingle thread.
void set_callback(ReplyCallback* callback) {
callback_.reset(callback);
}
private:
FRIEND_TEST_ALL_PREFIXES(IqRequestTest, MakeIqStanza);
// XmppIqHandler interface.
virtual void IqResponse(buzz::XmppIqCookie cookie,
const buzz::XmlElement* stanza);
static buzz::XmlElement* MakeIqStanza(const std::string& type,
const std::string& addressee,
buzz::XmlElement* iq_body,
const std::string& id);
void Unregister();
scoped_refptr<JingleClient> jingle_client_;
buzz::XmppIqCookie cookie_;
scoped_ptr<ReplyCallback> callback_;
};
} // namespace remoting
#endif // REMOTING_JINGLE_GLUE_IQ_REQUEST_H_
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