chatstatefilter.h

/*
  Copyright (c) 2005-2009 by Jakob Schroeter <js@camaya.net>
  This file is part of the gloox library. http://camaya.net/gloox

  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 CHATSTATEFILTER_H__
#define CHATSTATEFILTER_H__

#include "messagefilter.h"
#include "gloox.h"

namespace gloox
{

  class Tag;
  class ChatStateHandler;
  class MessageSession;
  class Message;

  class GLOOX_API ChatStateFilter : public MessageFilter
  {
    public:
      ChatStateFilter( MessageSession* parent );

      virtual ~ChatStateFilter();

      void setChatState( ChatStateType state );

      void registerChatStateHandler( ChatStateHandler* csh )
        { m_chatStateHandler = csh; }

      void removeChatStateHandler()
        { m_chatStateHandler = 0; }

      // reimplemented from MessageFilter
      virtual void decorate( Message& msg );

      // reimplemented from MessageFilter
      virtual void filter( Message& msg );

    protected:
      ChatStateHandler* m_chatStateHandler;

      ChatStateType m_lastSent;

      bool m_enableChatStates;

  };

}

#endif // CHATSTATEFILTER_H__