LCOV - code coverage report
Current view: top level - libreoffice/xmloff/source/core - DomBuilderContext.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 64 0.0 %
Date: 2012-12-27 Functions: 0 11 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include "DomBuilderContext.hxx"
      22             : 
      23             : #include <xmloff/nmspmap.hxx>
      24             : #include <xmloff/xmlimp.hxx>
      25             : #include "xmloff/xmlerror.hxx"
      26             : 
      27             : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
      28             : #include <com/sun/star/uno/Reference.hxx>
      29             : #include <com/sun/star/uno/Sequence.hxx>
      30             : #include <com/sun/star/xml/dom/XAttr.hpp>
      31             : #include <com/sun/star/xml/dom/DocumentBuilder.hpp>
      32             : #include <com/sun/star/xml/dom/XNode.hpp>
      33             : #include <com/sun/star/xml/dom/XElement.hpp>
      34             : #include <com/sun/star/xml/sax/XAttributeList.hpp>
      35             : #include <com/sun/star/xml/dom/NodeType.hpp>
      36             : 
      37             : #include <rtl/ustring.hxx>
      38             : #include <tools/debug.hxx>
      39             : 
      40             : #include <comphelper/processfactory.hxx>
      41             : 
      42             : 
      43             : using com::sun::star::lang::XMultiServiceFactory;
      44             : using com::sun::star::uno::XComponentContext;
      45             : using com::sun::star::uno::Reference;
      46             : using com::sun::star::uno::Sequence;
      47             : using com::sun::star::uno::UNO_QUERY;
      48             : using com::sun::star::uno::UNO_QUERY_THROW;
      49             : using com::sun::star::xml::dom::DocumentBuilder;
      50             : using com::sun::star::xml::dom::XAttr;
      51             : using com::sun::star::xml::dom::XDocument;
      52             : using com::sun::star::xml::dom::XDocumentBuilder;
      53             : using com::sun::star::xml::dom::XNode;
      54             : using com::sun::star::xml::dom::XElement;
      55             : using com::sun::star::xml::sax::XAttributeList;
      56             : using com::sun::star::xml::dom::NodeType_ELEMENT_NODE;
      57             : using rtl::OUString;
      58             : 
      59             : 
      60             : // helper functions; implemented below
      61             : static Reference<XNode> lcl_createDomInstance();
      62             : static Reference<XNode> lcl_createElement( SvXMLImport& rImport,
      63             :                                     sal_uInt16 nPrefix,
      64             :                                     const OUString rLocalName,
      65             :                                     Reference<XNode> xParent);
      66             : 
      67             : 
      68           0 : DomBuilderContext::DomBuilderContext( SvXMLImport& rImport,
      69             :                                       sal_uInt16 nPrefix,
      70             :                                       const OUString& rLocalName ) :
      71             :     SvXMLImportContext( rImport, nPrefix, rLocalName ),
      72             :     mxNode( lcl_createElement( rImport, nPrefix, rLocalName,
      73           0 :                                lcl_createDomInstance() ) )
      74             : {
      75             :     DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
      76             :     DBG_ASSERT( Reference<XElement>( mxNode, UNO_QUERY ).is(), "need element" );
      77             :     DBG_ASSERT( mxNode->getNodeType() == NodeType_ELEMENT_NODE, "need element" );
      78           0 : }
      79             : 
      80           0 : DomBuilderContext::DomBuilderContext( SvXMLImport& rImport,
      81             :                                       sal_uInt16 nPrefix,
      82             :                                       const OUString& rLocalName,
      83             :                                       Reference<XNode>& xParent ) :
      84             :     SvXMLImportContext( rImport, nPrefix, rLocalName ),
      85           0 :     mxNode( lcl_createElement( rImport, nPrefix, rLocalName, xParent ) )
      86             : {
      87             :     DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
      88             :     DBG_ASSERT( Reference<XElement>( mxNode, UNO_QUERY ).is(), "need element" );
      89             :     DBG_ASSERT( mxNode->getNodeType() == NodeType_ELEMENT_NODE, "need element" );
      90           0 : }
      91             : 
      92           0 : DomBuilderContext::~DomBuilderContext()
      93             : {
      94           0 : }
      95             : 
      96           0 : Reference<XDocument> DomBuilderContext::getTree()
      97             : {
      98             :     DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
      99           0 :     return mxNode->getOwnerDocument();
     100             : }
     101             : 
     102           0 : SvXMLImportContext* DomBuilderContext::CreateChildContext(
     103             :     sal_uInt16 nPrefix,
     104             :     const OUString& rLocalName,
     105             :     const Reference<XAttributeList>& )
     106             : {
     107             :     // create DomBuilder for subtree
     108           0 :     return new DomBuilderContext( GetImport(), nPrefix, rLocalName, mxNode );
     109             : }
     110             : 
     111             : 
     112           0 : void DomBuilderContext::StartElement(
     113             :     const Reference<XAttributeList>& xAttrList )
     114             : {
     115             :     DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
     116             :     DBG_ASSERT( mxNode->getOwnerDocument().is(), "XNode must have XDocument" );
     117             : 
     118             :     // add attribute nodes to new node
     119           0 :     sal_Int16 nAttributeCount = xAttrList->getLength();
     120           0 :     for( sal_Int16 i = 0; i < nAttributeCount; i++ )
     121             :     {
     122             :         // get name & value for attribute
     123           0 :         const OUString& rName = xAttrList->getNameByIndex( i );
     124           0 :         const OUString& rValue = xAttrList->getValueByIndex( i );
     125             : 
     126             :         // namespace handling: determine namespace & namespace keykey
     127           0 :         OUString sNamespace;
     128             :         sal_uInt16 nNamespaceKey =
     129           0 :             GetImport().GetNamespaceMap()._GetKeyByAttrName(
     130           0 :                 rName, NULL, NULL, &sNamespace );
     131             : 
     132             :         // create attribute node and set value
     133           0 :         Reference<XElement> xElement( mxNode, UNO_QUERY_THROW );
     134           0 :         switch( nNamespaceKey )
     135             :         {
     136             :         case XML_NAMESPACE_NONE:
     137             :             // no namespace: create a non-namespaced attribute
     138           0 :             xElement->setAttribute( rName, rValue );
     139           0 :             break;
     140             :         case XML_NAMESPACE_XMLNS:
     141             :             // namespace declaration: ignore, since the DOM tree handles these
     142             :             // declarations implicitly
     143           0 :             break;
     144             :         case XML_NAMESPACE_UNKNOWN:
     145             :             // unknown namespace: illegal input. Raise Warning.
     146             :             {
     147           0 :                 Sequence<OUString> aSeq(2);
     148           0 :                 aSeq[0] = rName;
     149           0 :                 aSeq[1] = rValue;
     150           0 :                 GetImport().SetError(
     151           0 :                     XMLERROR_FLAG_WARNING | XMLERROR_NAMESPACE_TROUBLE, aSeq );
     152             :             }
     153           0 :             break;
     154             :         default:
     155             :             // a real and proper namespace: create namespaced attribute
     156           0 :             xElement->setAttributeNS( sNamespace, rName, rValue );
     157           0 :             break;
     158             :         }
     159           0 :     }
     160           0 : }
     161             : 
     162           0 : void DomBuilderContext::EndElement()
     163             : {
     164             :     // nothing to be done!
     165           0 : }
     166             : 
     167           0 : void DomBuilderContext::Characters( const OUString& rCharacters )
     168             : {
     169             :     DBG_ASSERT( mxNode.is(), "empty XNode not allowed" );
     170             : 
     171             :     // TODO: I assume adjacent text nodes should be joined, to preserve
     172             :     // processinf model? (I.e., if the SAX parser breaks a string into 2
     173             :     // Characters(..) calls, the DOM model would still see only one child.)
     174             : 
     175             :     // create text node and append to parent
     176             :     Reference<XNode> xNew(
     177           0 :         mxNode->getOwnerDocument()->createTextNode( rCharacters ),
     178           0 :         UNO_QUERY_THROW );
     179           0 :     mxNode->appendChild( xNew );
     180           0 : }
     181             : 
     182             : 
     183             : //
     184             : // helper function implementations
     185             : //
     186             : 
     187           0 : static Reference<XNode> lcl_createDomInstance()
     188             : {
     189           0 :     Reference<XComponentContext> xContext = comphelper::getProcessComponentContext();
     190             :     DBG_ASSERT( xContext.is(), "can't get service factory" );
     191             : 
     192           0 :     Reference<XDocumentBuilder> xBuilder( DocumentBuilder::create(xContext) );
     193             : 
     194           0 :     return Reference<XNode>( xBuilder->newDocument(), UNO_QUERY_THROW );
     195             : }
     196             : 
     197           0 : static Reference<XNode> lcl_createElement( SvXMLImport& rImport,
     198             :                                     sal_uInt16 nPrefix,
     199             :                                     const OUString rLocalName,
     200             :                                     Reference<XNode> xParent)
     201             : {
     202             :     DBG_ASSERT( xParent.is(), "need parent node" );
     203             : 
     204           0 :     Reference<XDocument> xDocument = xParent->getOwnerDocument();
     205             :     DBG_ASSERT( xDocument.is(), "no XDocument found!" );
     206             : 
     207             :     // TODO: come up with proper way of handling namespaces; re-creating the
     208             :     // namespace from the key is NOT a good idea, and will not work for
     209             :     // multiple prefixes for the same namespace. Fortunately, those are rare.
     210             : 
     211           0 :     Reference<XElement> xElement;
     212           0 :     switch( nPrefix )
     213             :     {
     214             :     case XML_NAMESPACE_NONE:
     215             :         // no namespace: use local name
     216           0 :         xElement = xDocument->createElement( rLocalName );
     217           0 :         break;
     218             :     case XML_NAMESPACE_XMLNS:
     219             :     case XML_NAMESPACE_UNKNOWN:
     220             :         // both cases are illegal; raise warning (and use only local name)
     221           0 :         xElement = xDocument->createElement( rLocalName );
     222             :         {
     223           0 :             Sequence<OUString> aSeq(1);
     224           0 :             aSeq[0] = rLocalName;
     225             :             rImport.SetError(
     226           0 :                 XMLERROR_FLAG_WARNING | XMLERROR_NAMESPACE_TROUBLE, aSeq );
     227             :         }
     228           0 :         break;
     229             :     default:
     230             :         // We are only given the prefix and the local name; thus we have to ask
     231             :         // the namespace map to create a qualified name for us. Technically,
     232             :         // this is a bug, since this will fail for multiple prefixes used for
     233             :         // the same namespace.
     234           0 :         xElement = xDocument->createElementNS(
     235           0 :             rImport.GetNamespaceMap().GetNameByKey( nPrefix ),
     236           0 :             rImport.GetNamespaceMap().GetQNameByKey( nPrefix, rLocalName ) );
     237           0 :         break;
     238             :     }
     239             :     DBG_ASSERT( xElement.is(), "can't create element" );
     240             : 
     241             :     // add new element to parent and return
     242           0 :     Reference<XNode> xNode( xElement, UNO_QUERY_THROW );
     243           0 :     xParent->appendChild( xNode );
     244           0 :     return xNode;
     245             : }
     246             : 
     247             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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