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/***************************************************************************
* Copyright (C) 2005-2006 Nicolas Hadacek <hadacek@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 "xml_data_file.h"
#include <qfile.h>
#include <qstringlist.h>
#include <ksimpleconfig.h>
#include <klocale.h>
#include "common/global/pfile.h"
XmlDataFile::XmlDataFile(const PURL::Url &url, const QString &name)
: _url(url), _name(name), _document(name)
{
QDomElement root = _document.createElement(name);
_document.appendChild(root);
}
bool XmlDataFile::load(QString &error)
{
Log::StringView sview;
PURL::File file(_url, sview);
if ( !file.openForRead() ) {
error = i18n("Error opening file: %1").arg(sview.string());
return false;
}
if ( !_document.setContent(file.qfile(), false, &error) ) return false;
if ( _document.doctype().name()!=_name
|| _document.documentElement().nodeName()!=_name ) {
error = i18n("File is not of correct type.");
return false;
}
return true;
}
bool XmlDataFile::save(QString &error) const
{
Log::StringView sview;
PURL::File file(_url, sview);
bool ok = file.openForWrite();
if (ok) {
QString s = _document.toString(2);
file.appendText(s);
ok = file.close();
}
if ( !ok ) error = i18n("Error saving file: %1").arg(sview.string());
return ok;
}
QDomElement XmlDataFile::findChildElement(QDomElement parent, const QString &name) const
{
QDomNodeList list = parent.elementsByTagName(name);
return list.item(0).toElement();
}
QDomElement XmlDataFile::createChildElement(QDomElement parent, const QString &name)
{
QDomNodeList list = parent.elementsByTagName(name);
if ( list.count()==0 ) {
QDomElement element = _document.createElement(name);
parent.appendChild(element);
return element;
}
return list.item(0).toElement();
}
void XmlDataFile::removeChilds(QDomNode parent) const
{
QDomNodeList list = parent.childNodes();
for (uint i=0; i<list.count(); i++)
parent.removeChild(list.item(i));
}
QString XmlDataFile::value(const QString &group, const QString &key, const QString &defValue) const
{
QDomElement root = _document.documentElement();
QDomElement groupElement = findChildElement(root, group);
if ( groupElement.isNull() ) return defValue;
QDomElement element = findChildElement(groupElement, key);
if ( element.isNull() ) return defValue;
QDomText text = element.firstChild().toText();
if ( text.isNull() ) return defValue;
return text.data();
}
void XmlDataFile::setValue(const QString &group, const QString &key, const QString &value)
{
QDomElement root = _document.documentElement();
QDomElement groupElement = createChildElement(root, group);
QDomElement element = createChildElement(groupElement, key);
removeChilds(element);
QDomText text = _document.createTextNode(value);
element.appendChild(text);
}
QStringList XmlDataFile::listValues(const QString &group, const QString &key, const QStringList &defaultValues) const
{
QStringList list;
QDomElement root = _document.documentElement();
QDomElement groupElement = findChildElement(root, group);
if ( groupElement.isNull() ) return defaultValues;
QDomElement element = findChildElement(groupElement, key);
if ( element.isNull() ) return defaultValues;
QDomNodeList childs = element.childNodes();
if ( childs.count()==1 ) { // legacy compatibility
QDomText text = element.firstChild().toText();
if ( !text.isNull() ) return text.data();
}
for (uint i=0; i<childs.count(); i++) {
QDomText text = childs.item(i).toElement().firstChild().toText();
if ( text.isNull() ) continue;
list.append(text.data());
}
return list;
}
void XmlDataFile::appendListValue(const QString &group, const QString &key, const QString &value)
{
QDomElement root = _document.documentElement();
QDomElement groupElement = createChildElement(root, group);
QDomElement element = createChildElement(groupElement, key);
QDomElement item = _document.createElement("item");
element.appendChild(item);
QDomText text = _document.createTextNode(value);
item.appendChild(text);
}
void XmlDataFile::removeListValue(const QString &group, const QString &key, const QString &value)
{
QDomElement root = _document.documentElement();
QDomElement groupElement = createChildElement(root, group);
QDomElement element = createChildElement(groupElement, key);
QDomNodeList list = element.childNodes();
for (uint i=0; i<list.count(); i++) {
QDomElement item = list.item(i).toElement();
QDomText text = item.firstChild().toText();
if ( text.isNull() || text.data()!=value ) continue;
element.removeChild(item);
break;
}
}
void XmlDataFile::clearList(const QString &group, const QString &key)
{
QDomElement root = _document.documentElement();
QDomElement groupElement = createChildElement(root, group);
QDomElement element = createChildElement(groupElement, key);
groupElement.removeChild(element);
}
void XmlDataFile::setListValues(const QString &group, const QString &key, const QStringList &values)
{
clearList(group, key);
for (uint i=0; i<values.count(); i++) appendListValue(group, key, values[i]);
}
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