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| -rw-r--r-- | framework/source/xml/imagesdocumenthandler.cxx | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/framework/source/xml/imagesdocumenthandler.cxx b/framework/source/xml/imagesdocumenthandler.cxx new file mode 100644 index 000000000..51352b029 --- /dev/null +++ b/framework/source/xml/imagesdocumenthandler.cxx @@ -0,0 +1,386 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <xml/imagesdocumenthandler.hxx> + +#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp> +#include <com/sun/star/xml/sax/SAXException.hpp> + +#include <vcl/svapp.hxx> +#include <rtl/ustrbuf.hxx> + +#include <comphelper/attributelist.hxx> + +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::xml::sax; + +#define ELEMENT_IMAGECONTAINER "imagescontainer" +#define ELEMENT_IMAGES "images" +#define ELEMENT_ENTRY "entry" +#define ELEMENT_EXTERNALIMAGES "externalimages" +#define ELEMENT_EXTERNALENTRY "externalentry" + +#define ELEMENT_NS_IMAGESCONTAINER "image:imagescontainer" +#define ELEMENT_NS_IMAGES "image:images" +#define ELEMENT_NS_ENTRY "image:entry" + +#define ATTRIBUTE_HREF "href" +#define ATTRIBUTE_MASKCOLOR "maskcolor" +#define ATTRIBUTE_COMMAND "command" +#define ATTRIBUTE_BITMAPINDEX "bitmap-index" +#define ATTRIBUTE_MASKURL "maskurl" +#define ATTRIBUTE_MASKMODE "maskmode" +#define ATTRIBUTE_HIGHCONTRASTURL "highcontrasturl" +#define ATTRIBUTE_HIGHCONTRASTMASKURL "highcontrastmaskurl" +#define ATTRIBUTE_TYPE_CDATA "CDATA" + +#define ATTRIBUTE_XMLNS_IMAGE "xmlns:image" +#define ATTRIBUTE_XMLNS_XLINK "xmlns:xlink" + +#define ATTRIBUTE_XLINK_TYPE "xlink:type" +#define ATTRIBUTE_XLINK_TYPE_VALUE "simple" + +#define XMLNS_IMAGE "http://openoffice.org/2001/image" +#define XMLNS_XLINK "http://www.w3.org/1999/xlink" +#define XMLNS_IMAGE_PREFIX "image:" + +#define XMLNS_FILTER_SEPARATOR "^" + +#define IMAGES_DOCTYPE "<!DOCTYPE image:imagecontainer PUBLIC \"-//OpenOffice.org//DTD OfficeDocument 1.0//EN\" \"image.dtd\">" + +namespace framework +{ + +namespace { + +struct ImageXMLEntryProperty +{ + OReadImagesDocumentHandler::Image_XML_Namespace nNamespace; + char aEntryName[20]; +}; + +} + +ImageXMLEntryProperty const ImagesEntries[OReadImagesDocumentHandler::IMG_XML_ENTRY_COUNT] = +{ + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ELEMENT_IMAGECONTAINER }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ELEMENT_IMAGES }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ELEMENT_ENTRY }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ELEMENT_EXTERNALIMAGES }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ELEMENT_EXTERNALENTRY }, + { OReadImagesDocumentHandler::IMG_NS_XLINK, ATTRIBUTE_HREF }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_MASKCOLOR }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_COMMAND }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_BITMAPINDEX }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_MASKURL }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_MASKMODE }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_HIGHCONTRASTURL }, + { OReadImagesDocumentHandler::IMG_NS_IMAGE, ATTRIBUTE_HIGHCONTRASTMASKURL } +}; + +OReadImagesDocumentHandler::OReadImagesDocumentHandler( ImageItemDescriptorList& rItems ) : + m_rImageList( rItems ) +{ + // create hash map to speed up lookup + for ( int i = 0; i < int(IMG_XML_ENTRY_COUNT); i++ ) + { + OUStringBuffer temp( 20 ); + + if ( ImagesEntries[i].nNamespace == IMG_NS_IMAGE ) + temp.append( XMLNS_IMAGE ); + else + temp.append( XMLNS_XLINK ); + + temp.append( XMLNS_FILTER_SEPARATOR ); + temp.appendAscii( ImagesEntries[i].aEntryName ); + m_aImageMap.emplace( temp.makeStringAndClear(), static_cast<Image_XML_Entry>(i) ); + } + + // reset states + m_bImageContainerStartFound = false; + m_bImageContainerEndFound = false; + m_bImagesStartFound = false; +} + +OReadImagesDocumentHandler::~OReadImagesDocumentHandler() +{ +} + +// XDocumentHandler +void SAL_CALL OReadImagesDocumentHandler::startDocument() +{ +} + +void SAL_CALL OReadImagesDocumentHandler::endDocument() +{ + SolarMutexGuard g; + + if (m_bImageContainerStartFound != m_bImageContainerEndFound) + { + OUString aErrorMessage = getErrorLineString() + "No matching start or end element 'image:imagecontainer' found!"; + throw SAXException( aErrorMessage, Reference< XInterface >(), Any() ); + } +} + +void SAL_CALL OReadImagesDocumentHandler::startElement( + const OUString& aName, const Reference< XAttributeList > &xAttribs ) +{ + SolarMutexGuard g; + + ImageHashMap::const_iterator pImageEntry = m_aImageMap.find( aName ); + if ( pImageEntry == m_aImageMap.end() ) + return; + + switch ( pImageEntry->second ) + { + case IMG_ELEMENT_IMAGECONTAINER: + { + // image:imagecontainer element (container element for all further image elements) + if ( m_bImageContainerStartFound ) + { + OUString aErrorMessage = getErrorLineString() + "Element 'image:imagecontainer' cannot be embedded into 'image:imagecontainer'!"; + throw SAXException( aErrorMessage, Reference< XInterface >(), Any() ); + } + + m_bImageContainerStartFound = true; + } + break; + + case IMG_ELEMENT_IMAGES: + { + if ( !m_bImageContainerStartFound ) + { + OUString aErrorMessage = getErrorLineString() + "Element 'image:images' must be embedded into element 'image:imagecontainer'!"; + throw SAXException( aErrorMessage, Reference< XInterface >(), Any() ); + } + + if ( m_bImagesStartFound ) + { + OUString aErrorMessage = getErrorLineString() + "Element 'image:images' cannot be embedded into 'image:images'!"; + throw SAXException( aErrorMessage, Reference< XInterface >(), Any() ); + } + + m_bImagesStartFound = true; + } + break; + + case IMG_ELEMENT_ENTRY: + { + // Check that image:entry is embedded into image:images! + if ( !m_bImagesStartFound ) + { + OUString aErrorMessage = getErrorLineString() + "Element 'image:entry' must be embedded into element 'image:images'!"; + throw SAXException( aErrorMessage, Reference< XInterface >(), Any() ); + } + + // Create new image item descriptor + ImageItemDescriptor aItem; + + // Read attributes for this image definition + for ( sal_Int16 n = 0; n < xAttribs->getLength(); n++ ) + { + pImageEntry = m_aImageMap.find( xAttribs->getNameByIndex( n ) ); + if ( pImageEntry != m_aImageMap.end() ) + { + switch ( pImageEntry->second ) + { + case IMG_ATTRIBUTE_COMMAND: + { + aItem.aCommandURL = xAttribs->getValueByIndex( n ); + } + break; + + default: + break; + } + } + } + + // Check required attribute "command" + if ( aItem.aCommandURL.isEmpty() ) + { + OUString aErrorMessage = getErrorLineString() + "Required attribute 'image:command' must have a value!"; + throw SAXException( aErrorMessage, Reference< XInterface >(), Any() ); + } + + m_rImageList.push_back( aItem ); + } + break; + + default: + break; + } +} + +void SAL_CALL OReadImagesDocumentHandler::endElement(const OUString& aName) +{ + SolarMutexGuard g; + + ImageHashMap::const_iterator pImageEntry = m_aImageMap.find( aName ); + if ( pImageEntry == m_aImageMap.end() ) + return; + + switch ( pImageEntry->second ) + { + case IMG_ELEMENT_IMAGECONTAINER: + { + m_bImageContainerEndFound = true; + } + break; + + case IMG_ELEMENT_IMAGES: + { + m_bImagesStartFound = false; + } + break; + + default: break; + } +} + +void SAL_CALL OReadImagesDocumentHandler::characters(const OUString&) +{ +} + +void SAL_CALL OReadImagesDocumentHandler::ignorableWhitespace(const OUString&) +{ +} + +void SAL_CALL OReadImagesDocumentHandler::processingInstruction( + const OUString& /*aTarget*/, const OUString& /*aData*/ ) +{ +} + +void SAL_CALL OReadImagesDocumentHandler::setDocumentLocator( + const Reference< XLocator > &xLocator) +{ + SolarMutexGuard g; + m_xLocator = xLocator; +} + +OUString OReadImagesDocumentHandler::getErrorLineString() +{ + SolarMutexGuard g; + if ( m_xLocator.is() ) + { + OUStringBuffer buffer("Line: "); + buffer.append(m_xLocator->getLineNumber()); + buffer.append(" - "); + return buffer.makeStringAndClear(); + } + else + return OUString(); +} + +// OWriteImagesDocumentHandler + +OWriteImagesDocumentHandler::OWriteImagesDocumentHandler( + const ImageItemDescriptorList& rItems, + Reference< XDocumentHandler > const & rWriteDocumentHandler ) : + m_rImageItemList( rItems ), + m_xWriteDocumentHandler( rWriteDocumentHandler ) +{ + ::comphelper::AttributeList* pList = new ::comphelper::AttributeList; + m_xEmptyList.set( static_cast<XAttributeList *>(pList), UNO_QUERY ); + m_aAttributeType = ATTRIBUTE_TYPE_CDATA; + m_aXMLImageNS = XMLNS_IMAGE_PREFIX; + m_aAttributeXlinkType = ATTRIBUTE_XLINK_TYPE; + m_aAttributeValueSimple = ATTRIBUTE_XLINK_TYPE_VALUE; +} + +OWriteImagesDocumentHandler::~OWriteImagesDocumentHandler() +{ +} + +void OWriteImagesDocumentHandler::WriteImagesDocument() +{ + SolarMutexGuard g; + + m_xWriteDocumentHandler->startDocument(); + + // write DOCTYPE line! + Reference< XExtendedDocumentHandler > xExtendedDocHandler( m_xWriteDocumentHandler, UNO_QUERY ); + if ( xExtendedDocHandler.is() ) + { + xExtendedDocHandler->unknown( IMAGES_DOCTYPE ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); + } + + rtl::Reference<::comphelper::AttributeList> pList = new ::comphelper::AttributeList; + + pList->AddAttribute( ATTRIBUTE_XMLNS_IMAGE, + m_aAttributeType, + XMLNS_IMAGE ); + + pList->AddAttribute( ATTRIBUTE_XMLNS_XLINK, + m_aAttributeType, + XMLNS_XLINK ); + + m_xWriteDocumentHandler->startElement( ELEMENT_NS_IMAGESCONTAINER, pList.get() ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); + + WriteImageList( &m_rImageItemList ); + + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); + m_xWriteDocumentHandler->endElement( ELEMENT_NS_IMAGESCONTAINER ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); + m_xWriteDocumentHandler->endDocument(); +} + +// protected member functions + +void OWriteImagesDocumentHandler::WriteImageList( const ImageItemDescriptorList* pImageList ) +{ + ::comphelper::AttributeList* pList = new ::comphelper::AttributeList; + Reference< XAttributeList > xList( static_cast<XAttributeList *>(pList) , UNO_QUERY ); + + // save required attributes + pList->AddAttribute( m_aAttributeXlinkType, + m_aAttributeType, + m_aAttributeValueSimple ); + + m_xWriteDocumentHandler->startElement( ELEMENT_NS_IMAGES, xList ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); + + for (const ImageItemDescriptor & i : *pImageList) + WriteImage( &i ); + + m_xWriteDocumentHandler->endElement( ELEMENT_NS_IMAGES ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); +} + +void OWriteImagesDocumentHandler::WriteImage( const ImageItemDescriptor* pImage ) +{ + ::comphelper::AttributeList* pList = new ::comphelper::AttributeList; + Reference< XAttributeList > xList( static_cast<XAttributeList *>(pList) , UNO_QUERY ); + + pList->AddAttribute( m_aXMLImageNS + ATTRIBUTE_COMMAND, + m_aAttributeType, + pImage->aCommandURL ); + + m_xWriteDocumentHandler->startElement( ELEMENT_NS_ENTRY, xList ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); + + m_xWriteDocumentHandler->endElement( ELEMENT_NS_ENTRY ); + m_xWriteDocumentHandler->ignorableWhitespace( OUString() ); +} + +} // namespace framework + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |