1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #include "oox/core/contexthandler2.hxx" 29*cdf0e10cSrcweir #include <rtl/ustrbuf.hxx> 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir namespace oox { 32*cdf0e10cSrcweir namespace core { 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir // ============================================================================ 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir using namespace ::com::sun::star::uno; 37*cdf0e10cSrcweir using namespace ::com::sun::star::xml::sax; 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir using ::rtl::OUString; 40*cdf0e10cSrcweir using ::rtl::OUStringBuffer; 41*cdf0e10cSrcweir 42*cdf0e10cSrcweir // ============================================================================ 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir /** Information about a processed element. */ 45*cdf0e10cSrcweir struct ElementInfo 46*cdf0e10cSrcweir { 47*cdf0e10cSrcweir OUStringBuffer maChars; /// Collected element characters. 48*cdf0e10cSrcweir sal_Int32 mnElement; /// The element identifier. 49*cdf0e10cSrcweir bool mbTrimSpaces; /// True = trims leading/trailing spaces from text data. 50*cdf0e10cSrcweir 51*cdf0e10cSrcweir inline explicit ElementInfo() : mnElement( XML_TOKEN_INVALID ), mbTrimSpaces( false ) {} 52*cdf0e10cSrcweir }; 53*cdf0e10cSrcweir 54*cdf0e10cSrcweir // ============================================================================ 55*cdf0e10cSrcweir 56*cdf0e10cSrcweir ContextHandler2Helper::ContextHandler2Helper( bool bEnableTrimSpace ) : 57*cdf0e10cSrcweir mxContextStack( new ContextStack ), 58*cdf0e10cSrcweir mnRootStackSize( 0 ), 59*cdf0e10cSrcweir mbEnableTrimSpace( bEnableTrimSpace ) 60*cdf0e10cSrcweir { 61*cdf0e10cSrcweir pushElementInfo( XML_ROOT_CONTEXT ); 62*cdf0e10cSrcweir } 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir ContextHandler2Helper::ContextHandler2Helper( const ContextHandler2Helper& rParent ) : 65*cdf0e10cSrcweir mxContextStack( rParent.mxContextStack ), 66*cdf0e10cSrcweir mnRootStackSize( rParent.mxContextStack->size() ), 67*cdf0e10cSrcweir mbEnableTrimSpace( rParent.mbEnableTrimSpace ) 68*cdf0e10cSrcweir { 69*cdf0e10cSrcweir } 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir ContextHandler2Helper::~ContextHandler2Helper() 72*cdf0e10cSrcweir { 73*cdf0e10cSrcweir } 74*cdf0e10cSrcweir 75*cdf0e10cSrcweir sal_Int32 ContextHandler2Helper::getCurrentElement() const 76*cdf0e10cSrcweir { 77*cdf0e10cSrcweir return mxContextStack->empty() ? XML_ROOT_CONTEXT : mxContextStack->back().mnElement; 78*cdf0e10cSrcweir } 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir sal_Int32 ContextHandler2Helper::getParentElement( sal_Int32 nCountBack ) const 81*cdf0e10cSrcweir { 82*cdf0e10cSrcweir if( (nCountBack < 0) || (mxContextStack->size() < static_cast< size_t >( nCountBack )) ) 83*cdf0e10cSrcweir return XML_TOKEN_INVALID; 84*cdf0e10cSrcweir return (mxContextStack->size() == static_cast< size_t >( nCountBack )) ? 85*cdf0e10cSrcweir XML_ROOT_CONTEXT : (*mxContextStack)[ mxContextStack->size() - nCountBack - 1 ].mnElement; 86*cdf0e10cSrcweir } 87*cdf0e10cSrcweir 88*cdf0e10cSrcweir bool ContextHandler2Helper::isRootElement() const 89*cdf0e10cSrcweir { 90*cdf0e10cSrcweir return mxContextStack->size() == mnRootStackSize + 1; 91*cdf0e10cSrcweir } 92*cdf0e10cSrcweir 93*cdf0e10cSrcweir Reference< XFastContextHandler > ContextHandler2Helper::implCreateChildContext( 94*cdf0e10cSrcweir sal_Int32 nElement, const Reference< XFastAttributeList >& rxAttribs ) 95*cdf0e10cSrcweir { 96*cdf0e10cSrcweir // #i76091# process collected characters (calls onCharacters() if needed) 97*cdf0e10cSrcweir processCollectedChars(); 98*cdf0e10cSrcweir ContextHandlerRef xContext = onCreateContext( nElement, AttributeList( rxAttribs ) ); 99*cdf0e10cSrcweir return Reference< XFastContextHandler >( xContext.get() ); 100*cdf0e10cSrcweir } 101*cdf0e10cSrcweir 102*cdf0e10cSrcweir void ContextHandler2Helper::implStartElement( sal_Int32 nElement, const Reference< XFastAttributeList >& rxAttribs ) 103*cdf0e10cSrcweir { 104*cdf0e10cSrcweir AttributeList aAttribs( rxAttribs ); 105*cdf0e10cSrcweir pushElementInfo( nElement ).mbTrimSpaces = aAttribs.getToken( XML_TOKEN( space ), XML_TOKEN_INVALID ) != XML_preserve; 106*cdf0e10cSrcweir onStartElement( aAttribs ); 107*cdf0e10cSrcweir } 108*cdf0e10cSrcweir 109*cdf0e10cSrcweir void ContextHandler2Helper::implCharacters( const OUString& rChars ) 110*cdf0e10cSrcweir { 111*cdf0e10cSrcweir // #i76091# collect characters until new element starts or this element ends 112*cdf0e10cSrcweir if( !mxContextStack->empty() ) 113*cdf0e10cSrcweir mxContextStack->back().maChars.append( rChars ); 114*cdf0e10cSrcweir } 115*cdf0e10cSrcweir 116*cdf0e10cSrcweir void ContextHandler2Helper::implEndElement( sal_Int32 nElement ) 117*cdf0e10cSrcweir { 118*cdf0e10cSrcweir (void)nElement; // prevent "unused parameter" warning in product build 119*cdf0e10cSrcweir OSL_ENSURE( getCurrentElement() == nElement, "ContextHandler2Helper::implEndElement - context stack broken" ); 120*cdf0e10cSrcweir if( !mxContextStack->empty() ) 121*cdf0e10cSrcweir { 122*cdf0e10cSrcweir // #i76091# process collected characters (calls onCharacters() if needed) 123*cdf0e10cSrcweir processCollectedChars(); 124*cdf0e10cSrcweir onEndElement(); 125*cdf0e10cSrcweir popElementInfo(); 126*cdf0e10cSrcweir } 127*cdf0e10cSrcweir } 128*cdf0e10cSrcweir 129*cdf0e10cSrcweir ContextHandlerRef ContextHandler2Helper::implCreateRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) 130*cdf0e10cSrcweir { 131*cdf0e10cSrcweir return onCreateRecordContext( nRecId, rStrm ); 132*cdf0e10cSrcweir } 133*cdf0e10cSrcweir 134*cdf0e10cSrcweir void ContextHandler2Helper::implStartRecord( sal_Int32 nRecId, SequenceInputStream& rStrm ) 135*cdf0e10cSrcweir { 136*cdf0e10cSrcweir pushElementInfo( nRecId ); 137*cdf0e10cSrcweir onStartRecord( rStrm ); 138*cdf0e10cSrcweir } 139*cdf0e10cSrcweir 140*cdf0e10cSrcweir void ContextHandler2Helper::implEndRecord( sal_Int32 nRecId ) 141*cdf0e10cSrcweir { 142*cdf0e10cSrcweir (void)nRecId; // prevent "unused parameter" warning in product build 143*cdf0e10cSrcweir OSL_ENSURE( getCurrentElement() == nRecId, "ContextHandler2Helper::implEndRecord - context stack broken" ); 144*cdf0e10cSrcweir if( !mxContextStack->empty() ) 145*cdf0e10cSrcweir { 146*cdf0e10cSrcweir onEndRecord(); 147*cdf0e10cSrcweir popElementInfo(); 148*cdf0e10cSrcweir } 149*cdf0e10cSrcweir } 150*cdf0e10cSrcweir 151*cdf0e10cSrcweir ElementInfo& ContextHandler2Helper::pushElementInfo( sal_Int32 nElement ) 152*cdf0e10cSrcweir { 153*cdf0e10cSrcweir mxContextStack->resize( mxContextStack->size() + 1 ); 154*cdf0e10cSrcweir ElementInfo& rInfo = mxContextStack->back(); 155*cdf0e10cSrcweir rInfo.mnElement = nElement; 156*cdf0e10cSrcweir return rInfo; 157*cdf0e10cSrcweir } 158*cdf0e10cSrcweir 159*cdf0e10cSrcweir void ContextHandler2Helper::popElementInfo() 160*cdf0e10cSrcweir { 161*cdf0e10cSrcweir OSL_ENSURE( !mxContextStack->empty(), "ContextHandler2Helper::popElementInfo - context stack broken" ); 162*cdf0e10cSrcweir if( !mxContextStack->empty() ) 163*cdf0e10cSrcweir mxContextStack->pop_back(); 164*cdf0e10cSrcweir } 165*cdf0e10cSrcweir 166*cdf0e10cSrcweir void ContextHandler2Helper::processCollectedChars() 167*cdf0e10cSrcweir { 168*cdf0e10cSrcweir OSL_ENSURE( !mxContextStack->empty(), "ContextHandler2Helper::processCollectedChars - no context info" ); 169*cdf0e10cSrcweir ElementInfo& rInfo = mxContextStack->back(); 170*cdf0e10cSrcweir if( rInfo.maChars.getLength() > 0 ) 171*cdf0e10cSrcweir { 172*cdf0e10cSrcweir OUString aChars = rInfo.maChars.makeStringAndClear(); 173*cdf0e10cSrcweir if( mbEnableTrimSpace && rInfo.mbTrimSpaces ) 174*cdf0e10cSrcweir aChars = aChars.trim(); 175*cdf0e10cSrcweir if( aChars.getLength() > 0 ) 176*cdf0e10cSrcweir onCharacters( aChars ); 177*cdf0e10cSrcweir } 178*cdf0e10cSrcweir } 179*cdf0e10cSrcweir 180*cdf0e10cSrcweir // ============================================================================ 181*cdf0e10cSrcweir 182*cdf0e10cSrcweir ContextHandler2::ContextHandler2( ContextHandler2Helper& rParent ) : 183*cdf0e10cSrcweir ContextHandler( dynamic_cast< ContextHandler& >( rParent ) ), 184*cdf0e10cSrcweir ContextHandler2Helper( rParent ) 185*cdf0e10cSrcweir { 186*cdf0e10cSrcweir } 187*cdf0e10cSrcweir 188*cdf0e10cSrcweir ContextHandler2::~ContextHandler2() 189*cdf0e10cSrcweir { 190*cdf0e10cSrcweir } 191*cdf0e10cSrcweir 192*cdf0e10cSrcweir // com.sun.star.xml.sax.XFastContextHandler interface ------------------------- 193*cdf0e10cSrcweir 194*cdf0e10cSrcweir Reference< XFastContextHandler > SAL_CALL ContextHandler2::createFastChildContext( 195*cdf0e10cSrcweir sal_Int32 nElement, const Reference< XFastAttributeList >& rxAttribs ) throw( SAXException, RuntimeException ) 196*cdf0e10cSrcweir { 197*cdf0e10cSrcweir return implCreateChildContext( nElement, rxAttribs ); 198*cdf0e10cSrcweir } 199*cdf0e10cSrcweir 200*cdf0e10cSrcweir void SAL_CALL ContextHandler2::startFastElement( 201*cdf0e10cSrcweir sal_Int32 nElement, const Reference< XFastAttributeList >& rxAttribs ) throw( SAXException, RuntimeException ) 202*cdf0e10cSrcweir { 203*cdf0e10cSrcweir implStartElement( nElement, rxAttribs ); 204*cdf0e10cSrcweir } 205*cdf0e10cSrcweir 206*cdf0e10cSrcweir void SAL_CALL ContextHandler2::characters( const OUString& rChars ) throw( SAXException, RuntimeException ) 207*cdf0e10cSrcweir { 208*cdf0e10cSrcweir implCharacters( rChars ); 209*cdf0e10cSrcweir } 210*cdf0e10cSrcweir 211*cdf0e10cSrcweir void SAL_CALL ContextHandler2::endFastElement( sal_Int32 nElement ) throw( SAXException, RuntimeException ) 212*cdf0e10cSrcweir { 213*cdf0e10cSrcweir implEndElement( nElement ); 214*cdf0e10cSrcweir } 215*cdf0e10cSrcweir 216*cdf0e10cSrcweir // oox.core.RecordContext interface ------------------------------------------- 217*cdf0e10cSrcweir 218*cdf0e10cSrcweir ContextHandlerRef ContextHandler2::createRecordContext( sal_Int32 nRecId, SequenceInputStream& rStrm ) 219*cdf0e10cSrcweir { 220*cdf0e10cSrcweir return implCreateRecordContext( nRecId, rStrm ); 221*cdf0e10cSrcweir } 222*cdf0e10cSrcweir 223*cdf0e10cSrcweir void ContextHandler2::startRecord( sal_Int32 nRecId, SequenceInputStream& rStrm ) 224*cdf0e10cSrcweir { 225*cdf0e10cSrcweir implStartRecord( nRecId, rStrm ); 226*cdf0e10cSrcweir } 227*cdf0e10cSrcweir 228*cdf0e10cSrcweir void ContextHandler2::endRecord( sal_Int32 nRecId ) 229*cdf0e10cSrcweir { 230*cdf0e10cSrcweir implEndRecord( nRecId ); 231*cdf0e10cSrcweir } 232*cdf0e10cSrcweir 233*cdf0e10cSrcweir // oox.core.ContextHandler2Helper interface ----------------------------------- 234*cdf0e10cSrcweir 235*cdf0e10cSrcweir ContextHandlerRef ContextHandler2::onCreateContext( sal_Int32, const AttributeList& ) 236*cdf0e10cSrcweir { 237*cdf0e10cSrcweir return 0; 238*cdf0e10cSrcweir } 239*cdf0e10cSrcweir 240*cdf0e10cSrcweir void ContextHandler2::onStartElement( const AttributeList& ) 241*cdf0e10cSrcweir { 242*cdf0e10cSrcweir } 243*cdf0e10cSrcweir 244*cdf0e10cSrcweir void ContextHandler2::onCharacters( const OUString& ) 245*cdf0e10cSrcweir { 246*cdf0e10cSrcweir } 247*cdf0e10cSrcweir 248*cdf0e10cSrcweir void ContextHandler2::onEndElement() 249*cdf0e10cSrcweir { 250*cdf0e10cSrcweir } 251*cdf0e10cSrcweir 252*cdf0e10cSrcweir ContextHandlerRef ContextHandler2::onCreateRecordContext( sal_Int32, SequenceInputStream& ) 253*cdf0e10cSrcweir { 254*cdf0e10cSrcweir return 0; 255*cdf0e10cSrcweir } 256*cdf0e10cSrcweir 257*cdf0e10cSrcweir void ContextHandler2::onStartRecord( SequenceInputStream& ) 258*cdf0e10cSrcweir { 259*cdf0e10cSrcweir } 260*cdf0e10cSrcweir 261*cdf0e10cSrcweir void ContextHandler2::onEndRecord() 262*cdf0e10cSrcweir { 263*cdf0e10cSrcweir } 264*cdf0e10cSrcweir 265*cdf0e10cSrcweir // ============================================================================ 266*cdf0e10cSrcweir 267*cdf0e10cSrcweir } // namespace core 268*cdf0e10cSrcweir } // namespace oox 269