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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _PATHEXPRESSION_HXX
#define _PATHEXPRESSION_HXX
#include "computedexpression.hxx"
#include <vector>
// forward declaractions
namespace com { namespace sun { namespace star
{
namespace xml { namespace dom
{
class XNodeList;
namespace events { class XEventListener; }
} }
} } }
namespace xforms
{
/** PathExpression represents an XPath Expression and caches results */
class PathExpression : public ComputedExpression
{
public:
typedef std::vector<com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> > NodeVector_t;
private:
/// the node-list result from the last bind (cached from mxResult)
NodeVector_t maNodes;
protected:
/// get expression for evaluation
const OUString _getExpressionForEvaluation() const;
public:
PathExpression();
~PathExpression();
/// set the expression string
/// (overridden to do remove old listeners)
/// (also defines simple expressions)
void setExpression( const OUString& rExpression );
/// evaluate the expression relative to the content node.
bool evaluate( const xforms::EvaluationContext& rContext );
// get the result of this expression as node/node list/...
com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> getNode() const;
const NodeVector_t getNodeList() const;
com::sun::star::uno::Reference<com::sun::star::xml::dom::XNodeList> getXNodeList() const;
};
} // namespace xforms
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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