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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 "talk/xmpp/xmppengine.h"
+#include "testing/gtest/include/gtest/gtest_prod.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(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_