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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QUrl>
#include "qcommonsequencetypes_p.h"
#include "qnodebuilder_p.h"
#include "qqnamevalue_p.h"
#include "qattributeconstructor_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
AttributeConstructor::AttributeConstructor(const Expression::Ptr &op1,
const Expression::Ptr &op2) : PairContainer(op1, op2)
{
}
QString AttributeConstructor::processValue(const QXmlName name,
const Item &value)
{
if(!value)
return QString();
else if(name == QXmlName(StandardNamespaces::xml, StandardLocalNames::id))
return value.stringValue().simplified();
else
return value.stringValue();
}
Item AttributeConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
{
const Item nameItem(m_operand1->evaluateSingleton(context));
const Item content(m_operand2->evaluateSingleton(context));
const QXmlName name(nameItem.as<QNameValue>()->qName());
const QString value(processValue(name, content));
const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
nodeBuilder->attribute(name, QStringRef(&value));
const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
context->addNodeModel(nm);
return nm->root(QXmlNodeModelIndex());
}
void AttributeConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
{
QAbstractXmlReceiver *const receiver = context->outputReceiver();
const Item nameItem(m_operand1->evaluateSingleton(context));
const Item content(m_operand2->evaluateSingleton(context));
const QXmlName name(nameItem.as<QNameValue>()->qName());
const QString value(processValue(name, content));
receiver->attribute(name, QStringRef(&value));
}
SequenceType::Ptr AttributeConstructor::staticType() const
{
return CommonSequenceTypes::ExactlyOneAttribute;
}
SequenceType::List AttributeConstructor::expectedOperandTypes() const
{
SequenceType::List result;
result.append(CommonSequenceTypes::ExactlyOneQName);
result.append(CommonSequenceTypes::ZeroOrMoreItems);
return result;
}
Expression::Properties AttributeConstructor::properties() const
{
return DisableElimination | IsNodeConstructor;
}
ExpressionVisitorResult::Ptr
AttributeConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
{
return visitor->visit(this);
}
Expression::ID AttributeConstructor::id() const
{
return IDAttributeConstructor;
}
QT_END_NAMESPACE
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