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Diffstat (limited to 'forms/source/xforms/pathexpression.hxx')
-rw-r--r-- | forms/source/xforms/pathexpression.hxx | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/forms/source/xforms/pathexpression.hxx b/forms/source/xforms/pathexpression.hxx new file mode 100644 index 000000000000..00f11b56d435 --- /dev/null +++ b/forms/source/xforms/pathexpression.hxx @@ -0,0 +1,91 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _PATHEXPRESSION_HXX +#define _PATHEXPRESSION_HXX + + +// include for parent class +#include "computedexpression.hxx" + +// includes for member variables +#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 rtl::OUString _getExpressionForEvaluation() const; + + +public: + PathExpression(); + ~PathExpression(); + + /// set the expression string + /// (overridden to do remove old listeners) + /// (also defines simple expressions) + void setExpression( const rtl::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 |