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/*
This file is part of KitchenSync.
Copyright (c) 2006 Daniel Gollub <[email protected]>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "xmldiffalgo.h"
#include <kdebug.h>
using namespace KSync;
#ifndef KDE_USE_FINAL
// With --enable-final, we get the (identical) compareString from
// addresseediffalgo.cpp
//
static bool compareString( const TQString &left, const TQString &right )
{
if ( left.isEmpty() && right.isEmpty() )
return true;
else
return left == right;
}
#endif
XmlDiffAlgo::XmlDiffAlgo( const TQString &leftXml, const TQString &rightXml )
{
kdDebug() << __func__ << " " << __LINE__ << endl;
mLeftXml.setContent( leftXml );
mRightXml.setContent( rightXml );
}
XmlDiffAlgo::XmlDiffAlgo( const TQDomDocument &leftXml, const TQDomDocument &rightXml )
: mLeftXml( leftXml ), mRightXml( rightXml )
{
kdDebug() << __func__ << " " << __LINE__ << endl;
}
void XmlDiffAlgo::appendSingleNodes(TQDomElement &element, bool isLeft)
{
TQDomNode node;
for ( node = element.firstChild(); !node.isNull(); node = node.nextSibling() ) {
TQDomElement child = node.toElement();
if (isLeft)
additionalLeftField( node.nodeName(), child.text() );
else
additionalRightField( node.nodeName(), child.text() );
}
}
void XmlDiffAlgo::appendConflictNodes(TQDomElement &leftElement, TQDomElement &rightElement)
{
TQDomNode left, right;
TQDomElement leftChild, rightChild;
for ( left = leftElement.firstChild(); !left.isNull(); left = left.nextSibling() ) {
leftChild = left.toElement();
for ( right = rightElement.firstChild(); !right.isNull(); right = right.nextSibling() ) {
rightChild = right.toElement();
if ( leftChild.tagName() != rightChild.tagName() )
continue;
if (leftChild.text().isEmpty() || rightChild.text().isEmpty())
continue;
TQString id = leftChild.tagName();
if (id == "Content")
id = left.parentNode().nodeName();
conflictField( id, leftChild.text(), rightChild.text() );
left.parentNode().removeChild( left );
left = leftElement.firstChild();
right.parentNode().removeChild( right );
right = rightElement.firstChild();
}
}
}
void XmlDiffAlgo::compareNode(TQDomElement &leftElement, TQDomElement &rightElement)
{
TQDomNode left, right;
TQDomElement leftChild, rightChild;
TQDomNodeList nlist;
top:;
for ( left = leftElement.firstChild(); !left.isNull(); left = left.nextSibling() ) {
leftChild = left.toElement();
for ( right = rightElement.firstChild(); !right.isNull(); right = right.nextSibling() ) {
rightChild = right.toElement();
if (leftChild.tagName() != rightChild.tagName())
continue;
if ( left.childNodes().count() > 1 && right.childNodes().count() > 1 ) {
compareNode( leftChild, rightChild );
if ( !left.hasChildNodes() && !right.hasChildNodes() ) {
left.parentNode().removeChild( left );
right.parentNode().removeChild( right );
goto top;
}
break;
}
if ( leftChild.text() == rightChild.text() ) {
TQString id = leftChild.tagName();
if ( id == "Content" )
id = left.parentNode().nodeName();
if ( id != "Type" )
//matchingField( id, leftChild.text(), rightChild.text() );
left.parentNode().removeChild( left );
right.parentNode().removeChild( right );
goto top;
}
}
}
appendConflictNodes(rightElement, leftElement);
appendSingleNodes(rightElement, false);
appendSingleNodes(leftElement, true);
}
void XmlDiffAlgo::run()
{
kdDebug() << __func__ << endl;
begin();
TQDomElement leftElement = mLeftXml.documentElement();
TQDomElement rightElement = mRightXml.documentElement();
compareNode( leftElement, rightElement );
end();
}
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