oox/source/ole/axcontrolfragment.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 #include <oox/ole/axcontrolfragment.hxx>
  21
  22 #include <com/sun/star/io/XInputStream.hpp>
  23 #include <oox/core/xmlfilterbase.hxx>
  24 #include <oox/helper/attributelist.hxx>
  25 #include <oox/helper/binaryinputstream.hxx>
  26 #include <oox/ole/axcontrol.hxx>
  27 #include <oox/ole/olehelper.hxx>
  28 #include <oox/ole/olestorage.hxx>
  29 #include <oox/token/namespaces.hxx>
  30 #include <oox/token/tokens.hxx>
  31
  32 #include <osl/diagnose.h>
  33
  34 namespace oox::ole {
  35
  36 using namespace ::com::sun::star::io;
  37 using namespace ::com::sun::star::uno;
  38
  39 using ::oox::core::ContextHandler2;
  40 using ::oox::core::ContextHandlerRef;
  41 using ::oox::core::FragmentHandler2;
  42 using ::oox::core::XmlFilterBase;
  43
  44 AxControlPropertyContext::AxControlPropertyContext( FragmentHandler2 const & rFragment, ControlModelBase& rModel ) :
  45     ContextHandler2( rFragment ),
  46     mrModel( rModel ),
  47     mnPropId( XML_TOKEN_INVALID )
  48 {
  49 }
  50
  51 ContextHandlerRef AxControlPropertyContext::onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs )
  52 {
  53     switch( getCurrentElement() )
  54     {
  55         case AX_TOKEN( ocx ):
  56             if( nElement == AX_TOKEN( ocxPr ) )
  57             {
  58                 mnPropId = rAttribs.getToken( AX_TOKEN( name ), XML_TOKEN_INVALID );
  59                 switch( mnPropId )
  60                 {
  61                     case XML_TOKEN_INVALID:
  62                         return nullptr;
  63                     case XML_Picture:
  64                     case XML_MouseIcon:
  65                         return this;        // import picture path from ax:picture child element
  66                     default:
  67                         mrModel.importProperty( mnPropId, rAttribs.getStringDefaulted( AX_TOKEN( value )) );
  68                 }
  69             }
  70         break;
  71
  72         case AX_TOKEN( ocxPr ):
  73             if( nElement == AX_TOKEN( picture ) )
  74             {
  75                 OUString aPicturePath = getFragmentPathFromRelId( rAttribs.getStringDefaulted( R_TOKEN( id )) );
  76                 if( !aPicturePath.isEmpty() )
  77                 {
  78                     BinaryXInputStream aInStrm( getFilter().openInputStream( aPicturePath ), true );
  79                     mrModel.importPictureData( mnPropId, aInStrm );
  80                 }
  81             }
  82         break;
  83     }
  84     return nullptr;
  85 }
  86
  87 AxControlFragment::AxControlFragment( XmlFilterBase& rFilter, const OUString& rFragmentPath, EmbeddedControl& rControl ) :
  88     FragmentHandler2( rFilter, rFragmentPath, true ),
  89     mrControl( rControl )
  90 {
  91 }
  92
  93 ContextHandlerRef AxControlFragment::onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs )
  94 {
  95     if( isRootElement() && (nElement == AX_TOKEN( ocx )) )
  96     {
  97         OUString aClassId = rAttribs.getStringDefaulted( AX_TOKEN( classid ));
  98         switch( rAttribs.getToken( AX_TOKEN( persistence ), XML_TOKEN_INVALID ) )
  99         {
 100             case XML_persistPropertyBag:
 101                 if( ControlModelBase* pModel = mrControl.createModelFromGuid( aClassId ) )
 102                     return new AxControlPropertyContext( *this, *pModel );
 103             break;
 104
 105             case XML_persistStreamInit:
 106             {
 107                 OUString aFragmentPath = getFragmentPathFromRelId( rAttribs.getStringDefaulted( R_TOKEN( id )) );
 108                 if( !aFragmentPath.isEmpty() )
 109                 {
 110                     BinaryXInputStream aInStrm( getFilter().openInputStream( aFragmentPath ), true );
 111                     if( !aInStrm.isEof() )
 112                     {
 113                         // binary stream contains a copy of the class ID, must be equal to attribute value
 114                         OUString aStrmClassId = OleHelper::importGuid( aInStrm );
 115                         OSL_ENSURE( aClassId.equalsIgnoreAsciiCase( aStrmClassId ),
 116                             "AxControlFragment::importBinaryControl - form control class ID mismatch" );
 117                         if( ControlModelBase* pModel = mrControl.createModelFromGuid( aStrmClassId ) )
 118                             pModel->importBinaryModel( aInStrm );
 119                     }
 120                 }
 121             }
 122             break;
 123
 124             case XML_persistStorage:
 125             {
 126                 OUString aFragmentPath = getFragmentPathFromRelId( rAttribs.getStringDefaulted( R_TOKEN( id )) );
 127                 if( !aFragmentPath.isEmpty() )
 128                 {
 129                     Reference< XInputStream > xStrgStrm = getFilter().openInputStream( aFragmentPath );
 130                     if( xStrgStrm.is() )
 131                     {
 132                         // Try to import as a parent control
 133                         bool bImportedAsParent = false;
 134                         OleStorage aStorage( getFilter().getComponentContext(), xStrgStrm, false );
 135                         BinaryXInputStream aInStrm( aStorage.openInputStream( "f" ), true );
 136                         if( !aInStrm.isEof() )
 137                         {
 138                             if( AxContainerModelBase* pModel = dynamic_cast< AxContainerModelBase* >( mrControl.createModelFromGuid( aClassId ) ) )
 139                             {
 140                                 pModel->importBinaryModel( aInStrm );
 141                                 bImportedAsParent = true;
 142                             }
 143                         }
 144                         // Import it as a non-parent control
 145                         if(!bImportedAsParent)
 146                         {
 147                             BinaryXInputStream aInStrm2(aStorage.openInputStream("contents"), true);
 148                             if (!aInStrm2.isEof())
 149                             {
 150                                 if (ControlModelBase* pModel = mrControl.createModelFromGuid(aClassId))
 151                                 {
 152                                     pModel->importBinaryModel(aInStrm2);
 153                                 }
 154                             }
 155                         }
 156                     }
 157                 }
 158             }
 159             break;
 160         }
 161     }
 162     return nullptr;
 163 }
 164
 165 } // namespace oox::ole
 166
 167 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */