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/*
    historyguiclient.cpp

    Copyright (c) 2003-2004 by Olivier Goffart        <ogoffart @ kde.org>
    Kopete    (c) 2003-2004 by the Kopete developers  <kopete-devel@kde.org>

    *************************************************************************
    *                                                                       *
    * This program is free software; you can redistribute it and/or modify  *
    * it under the terms of the GNU General Public License as published by  *
    * the Free Software Foundation; either version 2 of the License, or     *
    * (at your option) any later version.                                   *
    *                                                                       *
    *************************************************************************
*/
#include "historyguiclient.h"
#include "historylogger.h"
#include "historyconfig.h"

#include "kopetechatsession.h"
#include "kopetecontact.h"
#include "kopeteview.h"

#include <kaction.h>
#include <klocale.h>
#include <kgenericfactory.h>

class HistoryPlugin;

HistoryGUIClient::HistoryGUIClient(Kopete::ChatSession *tqparent, const char *name)
 : TQObject(tqparent, name), KXMLGUIClient(tqparent)
{
	setInstance(KGenericFactory<HistoryPlugin>::instance());

	m_manager = tqparent;

	// Refuse to build this client, it is based on wrong parameters
	if(!m_manager || m_manager->members().isEmpty())
		deleteLater();

	TQPtrList<Kopete::Contact> mb=m_manager->members();
	m_logger=new HistoryLogger( mb.first() , this );

	actionLast=new KAction( i18n("History Last" ), TQString::tqfromLatin1( "finish" ), 0, this, TQT_SLOT(slotLast()), actionCollection() , "historyLast" );
	actionPrev = KStdAction::back( this, TQT_SLOT(slotPrevious()), actionCollection() , "historyPrevious" );
	actionNext = KStdAction::forward( this, TQT_SLOT(slotNext()), actionCollection() , "historyNext" );

	// we are generally at last when begining
	actionPrev->setEnabled(true);
	actionNext->setEnabled(false);
	actionLast->setEnabled(false);

	setXMLFile("historychatui.rc");
}


HistoryGUIClient::~HistoryGUIClient()
{
}


void HistoryGUIClient::slotPrevious()
{
	KopeteView *m_currentView = m_manager->view(true);
	m_currentView->clear();

	TQPtrList<Kopete::Contact> mb = m_manager->members();
	TQValueList<Kopete::Message> msgs = m_logger->readMessages(
			HistoryConfig::number_ChatWindow(), /*mb.first()*/ 0L,
		HistoryLogger::AntiChronological, true);

	actionPrev->setEnabled(msgs.count() == HistoryConfig::number_ChatWindow());
	actionNext->setEnabled(true);
	actionLast->setEnabled(true);

	m_currentView->appendMessages(msgs);
}

void HistoryGUIClient::slotLast()
{
	KopeteView *m_currentView = m_manager->view(true);
	m_currentView->clear();

	TQPtrList<Kopete::Contact> mb = m_manager->members();
	m_logger->setPositionToLast();
	TQValueList<Kopete::Message> msgs = m_logger->readMessages(
			HistoryConfig::number_ChatWindow(), /*mb.first()*/ 0L,
		HistoryLogger::AntiChronological, true);

	actionPrev->setEnabled(true);
	actionNext->setEnabled(false);
	actionLast->setEnabled(false);

	m_currentView->appendMessages(msgs);
}


void HistoryGUIClient::slotNext()
{
	KopeteView *m_currentView = m_manager->view(true);
	m_currentView->clear();

	TQPtrList<Kopete::Contact> mb = m_manager->members();
	TQValueList<Kopete::Message> msgs = m_logger->readMessages(
			HistoryConfig::number_ChatWindow(), /*mb.first()*/ 0L,
		HistoryLogger::Chronological, false);

	actionPrev->setEnabled(true);
	actionNext->setEnabled(msgs.count() == HistoryConfig::number_ChatWindow());
	actionLast->setEnabled(msgs.count() == HistoryConfig::number_ChatWindow());

	m_currentView->appendMessages(msgs);
}

#include "historyguiclient.moc"