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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_SIGNAL_STRATEGY_H_
#define REMOTING_JINGLE_GLUE_SIGNAL_STRATEGY_H_
#include <string>
#include "base/basictypes.h"
namespace buzz {
class XmlElement;
} // namespace buzz
namespace remoting {
class IqRequest;
class SignalStrategy {
public:
class StatusObserver {
public:
enum State {
START,
CONNECTING,
CONNECTED,
CLOSED,
};
// Called when state of the connection is changed.
virtual void OnStateChange(State state) = 0;
virtual void OnJidChange(const std::string& full_jid) = 0;
};
class Listener {
public:
// Must return true if the stanza was handled, false otherwise.
virtual bool OnIncomingStanza(const buzz::XmlElement* stanza) = 0;
};
SignalStrategy() {}
virtual ~SignalStrategy() {}
virtual void Init(StatusObserver* observer) = 0;
virtual void Close() = 0;
// Set a listener that can listen to all incoming messages. Doesn't
// take ownership of the |listener|. Can be called with |listener|
// set to NULL to unset current listener. It must be unset before
// object is destroyed.
virtual void SetListener(Listener* listener) = 0;
// Sends a raw XMPP stanza. Takes ownership of the |stanza|.
virtual void SendStanza(buzz::XmlElement* stanza) = 0;
// Returns new ID that should be used for the next outgoing IQ
// request.
virtual std::string GetNextId() = 0;
// TODO(sergeyu): Do we really need this method to be part of this
// interface?
virtual IqRequest* CreateIqRequest() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(SignalStrategy);
};
} // namespace remoting
#endif // REMOTING_JINGLE_GLUE_SIGNAL_STRATEGY_H_
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