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/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
/*
Author: Christian Hubinger <chubinger@irrsinnig.org>, (C) 2001-2008
*/
#include "kmfundoengine.h"
// KDE includes
#include <kdebug.h>
#include <klocale.h>
// Project includes
#include "kmftransaction.h"
#include "kmferror.h"
#include "kmyfirewallinterface.h"
#include "kmfappstate.h"
namespace KMF {
//########## KMFUndoEngine ##############
//#### static stuff
KMFUndoEngine* KMFUndoEngine::m_instance = 0;
KMFUndoEngine* KMFUndoEngine::instance() {
if ( ! m_instance ) {
m_instance = new KMFUndoEngine( 0 , "KMFUndoEngine" );
}
return m_instance;
}
//##### end static stuff
KMFUndoEngine::KMFUndoEngine( TQObject* parent, const char* name ) : TQObject( parent, name ) {
MAX_UNDO = 10;
m_in_transaction = false;
is_saved = true;
// m_transactionName = "";
m_app = 0;
}
KMFUndoEngine::~KMFUndoEngine() {}
void KMFUndoEngine::setMaxUndo ( uint num ) {
MAX_UNDO = num;
}
// void KMFUndoEngine::setPreserveObjectUuid( bool onOff ) {
// // m_preserveObjectUuid = onOff;
// }
bool KMFUndoEngine::inTransaction() {
return m_in_transaction;
};
void KMFUndoEngine::setKMFInterface( KMyFirewallInterface *app ) {
m_app = app;
}
TQValueList< KMFTransaction* >& KMFUndoEngine::undoTransactions() {
return m_undo_transactionObjects;
}
TQValueList< KMFTransaction* >& KMFUndoEngine::redoTransactions() {
return m_redo_transactionObjects;
}
KMFTransaction * KMFUndoEngine::findTransction( const TQUuid& uuid ) {
TQValueList< KMFTransaction* >::iterator it;
for ( it = m_undo_transactionObjects.begin(); it != m_undo_transactionObjects.end(); ++it ) {
if ( (*it)->uuid() == uuid ) {
return *it;
}
}
for ( it = m_redo_transactionObjects.begin(); it != m_redo_transactionObjects.end(); ++it ) {
if ( (*it)->uuid() == uuid ) {
return *it;
}
}
kdDebug() << "Not TRansaction found by uuid: " << uuid.toString() << endl;
return 0;
}
void KMFUndoEngine::saved() {
kdDebug() << "void KMFUndoEngine::startTransaction()" << endl;
is_saved = true;
}
bool KMFUndoEngine::isSaved() {
// kdDebug() << "void KMFUndoEngine::isSaved() -> " << is_saved << endl;
return is_saved;
}
void KMFUndoEngine::log( const TQString& msg, int kmfErrorType = KMFError::NORMAL, NetfilterObject* obj = 0 ) {
TQString m = msg;
TQString s = "";
if ( obj ) {
m.prepend( i18n("<i>%1:</i> ").arg( obj->name() ) );
}
s.append( KMFError::getAsString( kmfErrorType, m ) );
emit sigLog( *( new TQString(s) ) );
}
void KMFUndoEngine::changed ( const TQUuid& id ) {
NetfilterObject* obj = NetfilterObject::findObject ( id );
if ( ! obj ) {
log( i18n("Change non exiting object id: %1.").arg( id ), KMFError::FATAL );
return;
}
is_saved = false;
if ( m_app && KMFAppState::upAndRunning() ) {
m_app->updateCaption();
}
if ( ! m_in_transaction ) {
// log( i18n("Change object: %1 without transaction.").arg( obj->name() ), KMFError::WARNING );
return;
}
NetfilterObject *highestAffected = NetfilterObject::findObject( m_currentTransaction->objectUuid() );
if ( ! highestAffected || obj != highestAffected && ! obj->isChildOf( highestAffected->uuid() ) ) {
log( i18n("Change object: %1 outside of declared highestAffectedObject: %2 in transaction: %3.").arg( obj->name() ).arg( highestAffected->name() ).arg( m_currentTransaction->name() ), KMFError::WARNING );
}
}
void KMFUndoEngine::clearStacks() {
m_undo_transactionObjects.clear();
m_redo_transactionObjects.clear();
if ( m_app && KMFAppState::upAndRunning() ) {
m_app->enableUndo ( false );
m_app->enableRedo ( false );
}
emit sigStackChanged();
}
void KMFUndoEngine::startTransaction ( NetfilterObject* highestAffectedObject, const TQString& name ) {
kdDebug() << "void KMFUndoEngine::startTransaction( const TQString& " << name << " )" << endl;
m_in_transaction = true;
m_currentTransaction = new KMFTransaction( name, highestAffectedObject );
}
void KMFUndoEngine::abortTransaction() {
kdDebug() << "void KMFUndoEngine::abortTransaction()" << endl;
if ( ! m_in_transaction ) {
log( "KMFUndoEngine::abortTransaction() - No active Transaction!", KMFError::NORMAL, 0 );
return;
}
m_in_transaction = false;
delete m_currentTransaction;
m_currentTransaction = 0;
}
void KMFUndoEngine::endTransaction() {
kdDebug() << "void KMFUndoEngine::endTransaction()" << endl;
if ( ! m_in_transaction || ! m_currentTransaction ) {
log( "KMFUndoEngine::endTransaction() - No active Transaction!", KMFError::NORMAL, 0 );
return;
}
m_currentTransaction->commit();
m_undo_transactionObjects.append( m_currentTransaction );
while ( m_undo_transactionObjects.count() > KMFUndoEngine::maxUndo() ) {
m_undo_transactionObjects.pop_front();
}
if ( m_undo_transactionObjects.empty() ) {
m_app->enableUndo ( false );
m_app->enableRedo ( false );
} else {
m_app->enableUndo ( true );
}
m_in_transaction = false;
m_currentTransaction = 0;
emit sigStackChanged();
return;
}
TQValueList< NetfilterObject* >& KMFUndoEngine::undo() {
TQValueList< NetfilterObject* > *affected = new TQValueList< NetfilterObject* >;
kdDebug() << "void KMFUndoEngine::undo()" << endl;
if ( m_undo_transactionObjects.empty() ) {
kdDebug() << "No undo transactions available" << endl;
m_app->enableUndo ( false );
return *affected;
}
KMFTransaction* transaction = m_undo_transactionObjects.back();
NetfilterObject *obj = transaction->undo();
if ( obj ) {
affected->append( obj );
}
m_undo_transactionObjects.pop_back();
m_redo_transactionObjects.append ( transaction );
if ( m_redo_transactionObjects.empty() ) {
m_app->enableRedo ( false );
} else {
m_app->enableRedo ( true );
}
if ( m_undo_transactionObjects.empty() ) {
kdDebug() << "No More undo transactions available" << endl;
m_app->enableUndo ( false );
}
emit sigStackChanged();
return *affected;
}
TQValueList< NetfilterObject* >& KMFUndoEngine::redo() {
kdDebug() << "void KMFIPTDoc::redo()" << endl;
TQValueList< NetfilterObject* > *affected = new TQValueList< NetfilterObject* >;
if ( m_redo_transactionObjects.empty() ) {
kdDebug() << "No undo transactions available" << endl;
m_app->enableRedo ( false );
return *affected;
}
KMFTransaction* transaction = m_redo_transactionObjects.back();
NetfilterObject *obj = transaction->redo();
if ( obj ) {
affected->append( obj );
}
m_redo_transactionObjects.pop_back();
m_undo_transactionObjects.append ( transaction );
if ( m_undo_transactionObjects.empty() ) {
m_app->enableUndo ( false );
} else {
m_app->enableUndo ( true );
}
if ( m_redo_transactionObjects.empty() ) {
kdDebug() << "No More redo transactions available" << endl;
m_app->enableRedo ( false );
}
emit sigStackChanged();
return *affected;
}
}
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