1*2d785d7eSAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*2d785d7eSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*2d785d7eSAndrew Rist * or more contributor license agreements. See the NOTICE file 5*2d785d7eSAndrew Rist * distributed with this work for additional information 6*2d785d7eSAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*2d785d7eSAndrew Rist * to you under the Apache License, Version 2.0 (the 8*2d785d7eSAndrew Rist * "License"); you may not use this file except in compliance 9*2d785d7eSAndrew Rist * with the License. You may obtain a copy of the License at 10*2d785d7eSAndrew Rist * 11*2d785d7eSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*2d785d7eSAndrew Rist * 13*2d785d7eSAndrew Rist * Unless required by applicable law or agreed to in writing, 14*2d785d7eSAndrew Rist * software distributed under the License is distributed on an 15*2d785d7eSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*2d785d7eSAndrew Rist * KIND, either express or implied. See the License for the 17*2d785d7eSAndrew Rist * specific language governing permissions and limitations 18*2d785d7eSAndrew Rist * under the License. 19*2d785d7eSAndrew Rist * 20*2d785d7eSAndrew Rist *************************************************************/ 21*2d785d7eSAndrew Rist 22*2d785d7eSAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef _PATHEXPRESSION_HXX 25cdf0e10cSrcweir #define _PATHEXPRESSION_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir 28cdf0e10cSrcweir // include for parent class 29cdf0e10cSrcweir #include "computedexpression.hxx" 30cdf0e10cSrcweir 31cdf0e10cSrcweir // includes for member variables 32cdf0e10cSrcweir #include <vector> 33cdf0e10cSrcweir 34cdf0e10cSrcweir // forward declaractions 35cdf0e10cSrcweir namespace com { namespace sun { namespace star 36cdf0e10cSrcweir { 37cdf0e10cSrcweir namespace xml { namespace dom 38cdf0e10cSrcweir { 39cdf0e10cSrcweir class XNodeList; 40cdf0e10cSrcweir namespace events { class XEventListener; } 41cdf0e10cSrcweir } } 42cdf0e10cSrcweir } } } 43cdf0e10cSrcweir 44cdf0e10cSrcweir 45cdf0e10cSrcweir 46cdf0e10cSrcweir namespace xforms 47cdf0e10cSrcweir { 48cdf0e10cSrcweir 49cdf0e10cSrcweir /** PathExpression represents an XPath Expression and caches results */ 50cdf0e10cSrcweir class PathExpression : public ComputedExpression 51cdf0e10cSrcweir { 52cdf0e10cSrcweir public: 53cdf0e10cSrcweir typedef std::vector<com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> > NodeVector_t; 54cdf0e10cSrcweir 55cdf0e10cSrcweir private: 56cdf0e10cSrcweir /// the node-list result from the last bind (cached from mxResult) 57cdf0e10cSrcweir NodeVector_t maNodes; 58cdf0e10cSrcweir 59cdf0e10cSrcweir protected: 60cdf0e10cSrcweir /// get expression for evaluation 61cdf0e10cSrcweir const rtl::OUString _getExpressionForEvaluation() const; 62cdf0e10cSrcweir 63cdf0e10cSrcweir 64cdf0e10cSrcweir public: 65cdf0e10cSrcweir PathExpression(); 66cdf0e10cSrcweir ~PathExpression(); 67cdf0e10cSrcweir 68cdf0e10cSrcweir /// set the expression string 69cdf0e10cSrcweir /// (overridden to do remove old listeners) 70cdf0e10cSrcweir /// (also defines simple expressions) 71cdf0e10cSrcweir void setExpression( const rtl::OUString& rExpression ); 72cdf0e10cSrcweir 73cdf0e10cSrcweir 74cdf0e10cSrcweir /// evaluate the expression relative to the content node. 75cdf0e10cSrcweir bool evaluate( const xforms::EvaluationContext& rContext ); 76cdf0e10cSrcweir 77cdf0e10cSrcweir 78cdf0e10cSrcweir // get the result of this expression as node/node list/... 79cdf0e10cSrcweir com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> getNode() const; 80cdf0e10cSrcweir const NodeVector_t getNodeList() const; 81cdf0e10cSrcweir com::sun::star::uno::Reference<com::sun::star::xml::dom::XNodeList> getXNodeList() const; 82cdf0e10cSrcweir 83cdf0e10cSrcweir }; 84cdf0e10cSrcweir 85cdf0e10cSrcweir } // namespace xforms 86cdf0e10cSrcweir 87cdf0e10cSrcweir #endif 88