streamfeature.h

/*
  Copyright (c) 2009 by Jakob Schroeter <js@camaya.net>
  This file is part of the glooxd library. http://camaya.net/glooxd

  This software is distributed under a license. The full license
  agreement can be found in the file LICENSE in this distribution.
  This software may not be copied, modified, sold or distributed
  other than expressed in the named license agreement.

  This software is distributed without any warranty.
*/


#ifndef STREAMFEATURE_H__
#define STREAMFEATURE_H__

#include "glooxd.h"

#include <string>

namespace gloox
{
  class Tag;
}

namespace glooxd
{

  class StreamBase;
  class TagHandler;

  class GLOOXD_API StreamFeature
  {
    public:
      StreamFeature()
        : m_parent( 0 ), m_state( 0 )
      {}

      virtual ~StreamFeature() {}

      void setParent( StreamBase* parent ) { m_parent = parent; }

      virtual const std::string& filterString() const = 0;

      virtual gloox::Tag* tag( int state, const std::string& domain ) = 0;

      virtual StreamFeature* newInstance() const = 0;

      virtual void handleTag( gloox::Tag* tag ) = 0;

    protected:
      StreamBase* m_parent;
      int m_state;

  };

}

#endif // STREAMFEATURE_H__