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Diffstat (limited to 'shell/source/win32/ooofilereader/metainforeader.cxx')
| -rw-r--r-- | shell/source/win32/ooofilereader/metainforeader.cxx | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/shell/source/win32/ooofilereader/metainforeader.cxx b/shell/source/win32/ooofilereader/metainforeader.cxx new file mode 100644 index 000000000..9eab4d5e0 --- /dev/null +++ b/shell/source/win32/ooofilereader/metainforeader.cxx @@ -0,0 +1,285 @@ +/* -*- 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 <metainforeader.hxx> +#include "dummytag.hxx" +#include "simpletag.hxx" +#include "keywordstag.hxx" + +#include <assert.h> + +/** constructor. +*/ +CMetaInfoReader::CMetaInfoReader( const Filepath_t& DocumentName ): +CBaseReader( DocumentName ) +{ + try + { + m_pKeywords_Builder = new CKeywordsTag; + m_pSimple_Builder = new CSimpleTag( ); + m_pDummy_Builder = new CDummyTag; + + //retrieve all information that is useful + m_AllMetaInfo[META_INFO_AUTHOR] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_TITLE] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_SUBJECT] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_KEYWORDS] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_DESCRIPTION] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_DOCUMENT_STATISTIC] = EMPTY_XML_TAG; + + m_AllMetaInfo[META_INFO_GENERATOR] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_CREATION] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_CREATOR] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_MODIFIED] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_LANGUAGE] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_DOCUMENT_NUMBER] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_EDITING_TIME] = EMPTY_XML_TAG; + + Initialize( META_CONTENT_NAME ); + } + catch(xml_parser_exception&) + { + // OSL_ENSURE(false, ex.what()); + } + catch(...) + { + // OSL_ENSURE(false, "Unknown error"); + } +} + +CMetaInfoReader::CMetaInfoReader( StreamInterface* stream ) : +CBaseReader( stream ) +{ +try + { + m_pKeywords_Builder = new CKeywordsTag; + m_pSimple_Builder = new CSimpleTag( ); + m_pDummy_Builder = new CDummyTag; + + //retrieve all information that is useful + m_AllMetaInfo[META_INFO_AUTHOR] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_TITLE] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_SUBJECT] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_KEYWORDS] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_DESCRIPTION] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_DOCUMENT_STATISTIC] = EMPTY_XML_TAG; + + m_AllMetaInfo[META_INFO_GENERATOR] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_CREATION] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_CREATOR] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_MODIFIED] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_LANGUAGE] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_DOCUMENT_NUMBER] = EMPTY_XML_TAG; + m_AllMetaInfo[META_INFO_EDITING_TIME] = EMPTY_XML_TAG; + + Initialize( META_CONTENT_NAME ); + } + catch(xml_parser_exception&) + { + // OSL_ENSURE(false, ex.what()); + } + catch(...) + { + // OSL_ENSURE(false, "Unknown error"); + } + +} + +/** destructor. +*/ + +CMetaInfoReader::~CMetaInfoReader() +{ + delete m_pKeywords_Builder; + delete m_pSimple_Builder; + delete m_pDummy_Builder; +} + + +/*********************** export functions ***********************/ + +/** check if the Tag is in the target meta.xml file. + + @param TagName + the name of the tag that will be retrieve. +*/ +bool CMetaInfoReader::hasTag(const std::wstring& TagName) const +{ + return ( m_AllMetaInfo.find(TagName) != m_AllMetaInfo.end()); +} + +/** Get a specific tag content, compound tags will be returned as comma separated list. + + @param TagName + the name of the tag that will be retrieve. +*/ +std::wstring CMetaInfoReader::getTagData( const std::wstring& TagName) +{ + if( hasTag( TagName ) ) + return m_AllMetaInfo[TagName].first; + else + return EMPTY_STRING; +} + +/** check if the a tag has the specific attribute. + + @param TagName + the name of the tag. + @param AttributeName + the name of the attribute. +*/ +bool CMetaInfoReader::hasTagAttribute(const std::wstring& TagName, const std::wstring& AttributeName) +{ + return ( m_AllMetaInfo[TagName].second.find( AttributeName) != m_AllMetaInfo[TagName].second.end() ); +} + +/** Get a specific attribute content. + + @param TagName + the name of the tag. + @param AttributeName + the name of the attribute. +*/ +std::wstring CMetaInfoReader::getTagAttribute(const std::wstring& TagName, const std::wstring& AttributeName) +{ + if (hasTagAttribute(TagName, AttributeName)) + return m_AllMetaInfo[ TagName ].second[AttributeName]; + else + return EMPTY_STRING; +} + +/** helper function for getDefaultLocale(). +*/ +const LocaleSet_t EN_US_LOCALE( ::std::make_pair( ::std::wstring( L"en" ), ::std::wstring( L"US" ))); + +static bool isValidLocale(const ::std::wstring& Locale) +{ + return ( Locale.length() == 5 ); +} + +/** Get the default language of the whole document, if no such field, en-US is returned. +*/ +LocaleSet_t CMetaInfoReader::getDefaultLocale() +{ + if (hasTag(META_INFO_LANGUAGE)) + { + ::std::wstring locale = m_AllMetaInfo[META_INFO_LANGUAGE].first; + return isValidLocale(locale) ? ::std::make_pair(locale.substr( 0,2), locale.substr( 3,2)) : EN_US_LOCALE; + } + else + return EN_US_LOCALE; +} + +/*********************** tag related functions ***********************/ + +/** choose an appropriate tag reader +*/ + +ITag* CMetaInfoReader::chooseTagReader( const std::wstring& tag_name, const XmlTagAttributes_t& XmlAttributes ) +{ + if ( tag_name == META_INFO_KEYWORD ) + { + m_AllMetaInfo[META_INFO_KEYWORDS].second = XmlAttributes; + return m_pKeywords_Builder; + } + if (( tag_name == META_INFO_TITLE )||( tag_name == META_INFO_AUTHOR )||( tag_name == META_INFO_SUBJECT )||( tag_name == META_INFO_DESCRIPTION )|| + ( tag_name == META_INFO_DOCUMENT_STATISTIC )||( tag_name == META_INFO_GENERATOR )||( tag_name == META_INFO_CREATION )||( tag_name == META_INFO_CREATOR )|| + ( tag_name == META_INFO_MODIFIED )||( tag_name == META_INFO_LANGUAGE )||( tag_name == META_INFO_DOCUMENT_NUMBER )||( tag_name == META_INFO_EDITING_TIME ) ) + { + m_AllMetaInfo[tag_name].second = XmlAttributes; + return m_pSimple_Builder; + } + else + return m_pDummy_Builder; + +} + + +// save the received content into structure. + +void CMetaInfoReader::saveTagContent( const std::wstring& tag_name ) +{ + ITag* pTagBuilder; + if ( tag_name == META_INFO_KEYWORDS ) + pTagBuilder = m_pKeywords_Builder; + else if ( tag_name == META_INFO_KEYWORD ) + { + // added for support for OASIS xml file format. + m_AllMetaInfo[META_INFO_KEYWORDS].first =m_pKeywords_Builder->getTagContent( ); + return; + } + else if (( tag_name == META_INFO_TITLE )||( tag_name == META_INFO_AUTHOR )||( tag_name == META_INFO_SUBJECT )||( tag_name == META_INFO_DESCRIPTION )|| + ( tag_name == META_INFO_DOCUMENT_STATISTIC )||( tag_name == META_INFO_GENERATOR )||( tag_name == META_INFO_CREATION )||( tag_name == META_INFO_CREATOR )|| + ( tag_name == META_INFO_MODIFIED )||( tag_name == META_INFO_LANGUAGE )||( tag_name == META_INFO_DOCUMENT_NUMBER )||( tag_name == META_INFO_EDITING_TIME ) ) + pTagBuilder = m_pSimple_Builder; + else + pTagBuilder = m_pDummy_Builder; + + m_AllMetaInfo[tag_name].first =pTagBuilder->getTagContent( ); +} + + +/*********************** event handler functions ***********************/ + + +// start_element occurs when a tag is start + + +void CMetaInfoReader::start_element( + const string_t& /*raw_name*/, + const string_t& local_name, + const xml_tag_attribute_container_t& attributes) +{ + //get appropriate Xml Tag Builder using MetaInfoBuilderFactory; + ITag* pTagBuilder = chooseTagReader( local_name,attributes ); + assert( pTagBuilder!= nullptr ); + pTagBuilder->startTag( ); + m_TagBuilderStack.push( pTagBuilder ); + +} + + +// end_element occurs when a tag is closed + + +void CMetaInfoReader::end_element(const string_t& /*raw_name*/, const string_t& local_name) +{ + assert( !m_TagBuilderStack.empty() ); + ITag* pTagBuilder = m_TagBuilderStack.top(); + m_TagBuilderStack.pop(); + pTagBuilder->endTag(); + + saveTagContent( local_name ); + +} + + +// characters occurs when receiving characters + + +void CMetaInfoReader::characters( const string_t& character ) +{ + if ( character.length() > 0 && !HasOnlySpaces( character ) ) + { + ITag* pTagBuilder = m_TagBuilderStack.top(); + pTagBuilder->addCharacters( character ); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |