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/* -*- 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 <contentreader.hxx>
#include "dummytag.hxx"
#include "simpletag.hxx"
#include "autostyletag.hxx"
#include <assert.h>
/** constructor.
*/
CContentReader::CContentReader( const Filepath_t& DocumentName, LocaleSet_t const & DocumentLocale ):
CBaseReader( DocumentName )
{
try
{
m_DefaultLocale = DocumentLocale;
Initialize( DOC_CONTENT_NAME );
}
catch(xml_parser_exception&)
{
// OSL_ENSURE(false, ex.what());
}
catch(...)
{
// OSL_ENSURE(false, "Unknown error");
}
}
CContentReader::CContentReader( StreamInterface* stream, LocaleSet_t const & DocumentLocale ) :
CBaseReader( stream )
{
try
{
m_DefaultLocale = DocumentLocale;
Initialize( DOC_CONTENT_NAME );
}
catch(xml_parser_exception&)
{
// OSL_ENSURE(false, ex.what());
}
catch(...)
{
// OSL_ENSURE(false, "Unknown error");
}
}
/** destructor.
*/
CContentReader::~CContentReader()
{
}
/*********************** helper functions ***********************/
/** choose an appropriate tag reader
*/
ITag* CContentReader::chooseTagReader( const std::wstring& tag_name, const XmlTagAttributes_t& XmlAttributes )
{
if (( tag_name == CONTENT_TEXT_A )||( tag_name == CONTENT_TEXT_P )||
( tag_name == CONTENT_TEXT_SPAN ) ||( tag_name == CONTENT_TEXT_H )||
( tag_name == CONTENT_TEXT_SEQUENCE ) ||( tag_name == CONTENT_TEXT_BOOKMARK_REF )||
( tag_name == CONTENT_TEXT_INDEX_TITLE_TEMPLATE ) )
return new CSimpleTag(XmlAttributes);
else if ( tag_name == CONTENT_STYLE_STYLE )
{
// if style:style | style:name is exist,, fill the style field, otherwise do nothing;
if ( XmlAttributes.find(CONTENT_STYLE_STYLE_NAME) != XmlAttributes.end())
return new CAutoStyleTag(XmlAttributes);
else
return new CDummyTag;
}
else if ( ( tag_name == CONTENT_STYLE_PROPERTIES ) || ( tag_name == CONTENT_TEXT_STYLE_PROPERTIES ) )
{
assert( !m_TagBuilderStack.empty() );
//here we presume that if CONTENT_STYLE_PROPERTIES tag is present, it just follow CONTENT_STYLE_STYLE;
ITag* pTagBuilder = m_TagBuilderStack.top();
pTagBuilder->addAttributes( XmlAttributes );
return new CDummyTag;
}
else
return new CDummyTag;
}
/** get style of the current content.
*/
::std::wstring CContentReader::getCurrentContentStyle()
{
assert( !m_TagBuilderStack.empty() );
ITag* pTagBuilder = m_TagBuilderStack.top();
return pTagBuilder->getTagAttribute(CONTENT_TEXT_STYLENAME);
}
/** add chunk into Chunk Buffer.
*/
void CContentReader::addChunk( LocaleSet_t const & Locale, Content_t const & Content )
{
if ( Content == EMPTY_STRING )
return;
if ( ( ( m_ChunkBuffer.empty() ) || ( m_ChunkBuffer.back().first != Locale ) ) &&
( ( Content != SPACE ) && ( Content != LF ) ) )
{
// if met a new locale, add a blank new chunk;
Chunk_t Chunk;
Chunk.first = Locale;
Chunk.second = EMPTY_STRING;
m_ChunkBuffer.push_back( Chunk );
}
if ( !m_ChunkBuffer.empty() )
m_ChunkBuffer.back().second += Content;
}
/** get a style's locale field.
*/
LocaleSet_t const & CContentReader::getLocale( const StyleName_t& Style )
{
if ( m_StyleMap.empty() )
return m_DefaultLocale;
StyleLocaleMap_t::const_iterator style_Iter;
if ( ( style_Iter = m_StyleMap.find( Style ) ) == m_StyleMap.end( ) )
return m_DefaultLocale;
else
return style_Iter->second;
}
/*********************** event handler functions ***********************/
// start_element occurs when a tag is start
void CContentReader::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 CContentReader::end_element(const string_t& /*raw_name*/, const string_t& local_name)
{
assert( !m_TagBuilderStack.empty() );
ITag* pTagBuilder = m_TagBuilderStack.top();
if ( local_name == CONTENT_STYLE_STYLE )
{
StyleLocalePair_t StyleLocalePair = static_cast<CAutoStyleTag * >( pTagBuilder)->getStyleLocalePair();
if ( ( static_cast<CAutoStyleTag * >( pTagBuilder)->isFull() ) && ( StyleLocalePair.second != m_DefaultLocale ) )
m_StyleMap.insert( StyleLocalePair );
}
if (( local_name == CONTENT_TEXT_A )||( local_name == CONTENT_TEXT_SPAN ) ||
( local_name == CONTENT_TEXT_SEQUENCE )||( local_name == CONTENT_TEXT_BOOKMARK_REF ))
addChunk( getLocale( getCurrentContentStyle() ), ::std::wstring( SPACE ) );
if ((( local_name == CONTENT_TEXT_P )||( local_name == CONTENT_TEXT_H ) ||
( local_name == CONTENT_TEXT_INDEX_TITLE_TEMPLATE ) )&&
( EMPTY_STRING != pTagBuilder->getTagContent( ) ) )
addChunk( getLocale( getCurrentContentStyle() ), ::std::wstring( LF ) );
m_TagBuilderStack.pop();
pTagBuilder->endTag();
delete pTagBuilder;
}
// characters occurs when receiving characters
void CContentReader::characters( const string_t& character )
{
if ( character.length() > 0 && !HasOnlySpaces( character ) )
{
addChunk( getLocale( getCurrentContentStyle() ), character );
ITag* pTagBuilder = m_TagBuilderStack.top();
pTagBuilder->addCharacters( character );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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