xmloff/source/xforms/XFormsBindContext.cxx

   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 "XFormsBindContext.hxx"
  22
  23 #include "xformsapi.hxx"
  24
  25 #include <xmloff/xmlimp.hxx>
  26 #include <xmloff/xmlerror.hxx>
  27 #include <xmloff/xmltoken.hxx>
  28 #include <xmloff/xmlnamespace.hxx>
  29 #include <xmloff/namespacemap.hxx>
  30
  31 #include <com/sun/star/container/XNameContainer.hpp>
  32 #include <com/sun/star/xforms/XModel2.hpp>
  33
  34 #include <sal/log.hxx>
  35
  36 using com::sun::star::uno::Reference;
  37 using com::sun::star::uno::Any;
  38 using com::sun::star::uno::UNO_QUERY;
  39 using com::sun::star::container::XNameContainer;
  40 using com::sun::star::xml::sax::XFastAttributeList;
  41 using com::sun::star::xforms::XModel2;
  42 using namespace xmloff::token;
  43
  44 // helper function; see below
  45 static void lcl_fillNamespaceContainer( const SvXMLNamespaceMap&,
  46                                  Reference<XNameContainer> const & );
  47
  48 XFormsBindContext::XFormsBindContext(
  49     SvXMLImport& rImport,
  50     const Reference<XModel2>& xModel ) :
  51         TokenContext( rImport ),
  52         mxModel( xModel )
  53 {
  54     // attach binding to model
  55     mxBinding = mxModel->createBinding();
  56     SAL_WARN_IF( !mxBinding.is(), "xmloff", "can't create binding" );
  57     mxModel->getBindings()->insert( Any( mxBinding ) );
  58 }
  59
  60 void XFormsBindContext::HandleAttribute( const sax_fastparser::FastAttributeList::FastAttributeIter & aIter )
  61 {
  62     switch( aIter.getToken() & TOKEN_MASK )
  63     {
  64     case XML_NODESET:
  65         xforms_setValue( mxBinding, u"BindingExpression"_ustr, aIter.toString() );
  66         break;
  67     case XML_ID:
  68         xforms_setValue( mxBinding, u"BindingID"_ustr, aIter.toString() );
  69         break;
  70     case XML_READONLY:
  71         xforms_setValue( mxBinding, u"ReadonlyExpression"_ustr, aIter.toString() );
  72         break;
  73     case XML_RELEVANT:
  74         xforms_setValue( mxBinding, u"RelevantExpression"_ustr, aIter.toString() );
  75         break;
  76     case XML_REQUIRED:
  77         xforms_setValue( mxBinding, u"RequiredExpression"_ustr, aIter.toString() );
  78         break;
  79     case XML_CONSTRAINT:
  80         xforms_setValue( mxBinding, u"ConstraintExpression"_ustr, aIter.toString() );
  81         break;
  82     case XML_CALCULATE:
  83         xforms_setValue( mxBinding, u"CalculateExpression"_ustr, aIter.toString() );
  84         break;
  85     case XML_TYPE:
  86         xforms_setValue( mxBinding, u"Type"_ustr,
  87                          xforms_getTypeName( mxModel->getDataTypeRepository(),
  88                                        GetImport().GetNamespaceMap(),
  89                                        aIter.toString() ) );
  90         break;
  91     default:
  92         assert( false && "should not happen" );
  93         break;
  94     }
  95 }
  96
  97 void XFormsBindContext::startFastElement(
  98     sal_Int32 nElement,
  99     const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList )
 100 {
 101     // we need to register the namespaces
 102     Reference<XNameContainer> xContainer(
 103         mxBinding->getPropertyValue( u"BindingNamespaces"_ustr ),
 104         UNO_QUERY );
 105
 106     SAL_WARN_IF( !xContainer.is(), "xmloff", "binding should have a namespace container" );
 107     if( xContainer.is() )
 108         lcl_fillNamespaceContainer( GetImport().GetNamespaceMap(), xContainer);
 109
 110     // call super-class for attribute handling
 111     TokenContext::startFastElement( nElement, xAttrList );
 112 }
 113
 114 /** will be called for each child element */
 115 SvXMLImportContext* XFormsBindContext::HandleChild(
 116     sal_Int32,
 117     const Reference<XFastAttributeList>& )
 118 {
 119     assert( false && "no children supported" );
 120     return nullptr;
 121 }
 122
 123
 124 static void lcl_fillNamespaceContainer(
 125     const SvXMLNamespaceMap& aMap,
 126     Reference<XNameContainer> const & xContainer )
 127 {
 128     sal_uInt16 nKeyIter = aMap.GetFirstKey();
 129     do
 130     {
 131         // get prefix and namespace
 132         const OUString& sPrefix = aMap.GetPrefixByKey( nKeyIter );
 133         const OUString& sNamespace = aMap.GetNameByKey( nKeyIter );
 134
 135         // as a hack, we will ignore our own 'default' namespaces
 136         SAL_WARN_IF( sPrefix.isEmpty(), "xmloff", "no prefix?" );
 137         if( !sPrefix.startsWith("_") &&
 138             nKeyIter >= XML_NAMESPACE_META_SO52)
 139         {
 140             // insert prefix (use replace if already known)
 141             if( xContainer->hasByName( sPrefix ) )
 142                 xContainer->replaceByName( sPrefix, Any( sNamespace ) );
 143             else
 144                 xContainer->insertByName( sPrefix, Any( sNamespace ) );
 145         }
 146
 147         // proceed to next
 148         nKeyIter = aMap.GetNextKey( nKeyIter );
 149     }
 150     while( nKeyIter != XML_NAMESPACE_UNKNOWN );
 151 }
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */