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/*
kopetesimplemessagehandler.h - Kopete Message Filtering - simple interface
Copyright (c) 2004 by Richard Smith <kde@metafoo.co.uk>
Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
*************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
*************************************************************************
*/
#ifndef KOPETESIMPLEMESSAGEHANDLER_H
#define KOPETESIMPLEMESSAGEHANDLER_H
#include "kopete_export.h"
#include "kopetemessagehandler.h"
namespace Kopete
{
/**
* @brief A MessageHandlerFactory that creates synchronous MessageHandlers that just call a slot
*
* A concrete MessageHandlerFactory. This class is intended to make writing MessageHandlers simpler;
* all that is required is to implement a message processing function and place an instance of this
* class in your Plugin-derived class.
*
* Whenever a message passes through a handler created by this factory, the slot passed to the
* constructor will be called. The slot should take a single argument of type (non-@p const)
* <tt>Message &</tt>.
*/
class KOPETE_EXPORT SimpleMessageHandlerFactory : public MessageHandlerFactory
{
public:
/**
* @param direction The direction this factory should create message handlers for
* @param position Where in the chain the handler should be installed
* @param target The object to call back to when handling a message
* @param slot The slot on @p target to call when handling a message
* @see Kopete::MessageHandlerFactory::filterPosition
*/
SimpleMessageHandlerFactory( Message::MessageDirection direction, int position,
TQObject *target, const char *slot );
~SimpleMessageHandlerFactory();
/**
* Creates and returns a SimpleMessageHandler object.
*/
MessageHandler *create( ChatSession *manager, Message::MessageDirection direction );
/**
* Returns the filter position passed to the constructor if @p direction matches the
* direction passed to the constructor, otherwise returns @c StageDoNotCreate.
*/
int filterPosition( ChatSession *manager, Message::MessageDirection direction );
private:
class Private;
Private *d;
};
/**
* @internal This class is used to implement SimpleMessageHandlerFactory.
*/
class SimpleMessageHandler : public MessageHandler
{
Q_OBJECT
public:
SimpleMessageHandler();
~SimpleMessageHandler();
void handleMessage( MessageEvent *event );
signals:
void handle( Kopete::Message &message );
private:
class Private;
Private *d;
};
}
#endif
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