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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 "textmarkuphelper.hxx"
#include "accportions.hxx"
#include <vector>
#include <com/sun/star/text/TextMarkupType.hpp>
#include <com/sun/star/accessibility/TextSegment.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <comphelper/sequence.hxx>
#include <osl/diagnose.h>
#include <ndtxt.hxx>
#include <wrong.hxx>
using namespace com::sun::star;
// helper functions
namespace {
/// @throws css::lang::IllegalArgumentException
/// @throws css::uno::RuntimeException
SwWrongList const* (SwTextNode::*
getTextMarkupFunc(const sal_Int32 nTextMarkupType))() const
{
switch ( nTextMarkupType )
{
case text::TextMarkupType::SPELLCHECK:
{
return &SwTextNode::GetWrong;
}
break;
case text::TextMarkupType::PROOFREADING:
{
// support not implemented yet
return nullptr;
}
break;
case text::TextMarkupType::SMARTTAG:
{
// support not implemented yet
return nullptr;
}
break;
default:
{
throw lang::IllegalArgumentException();
}
}
}
}
// implementation of class <SwTextMarkupoHelper>
SwTextMarkupHelper::SwTextMarkupHelper( const SwAccessiblePortionData& rPortionData,
const SwTextFrame& rTextFrame)
: mrPortionData( rPortionData )
, m_pTextFrame(&rTextFrame)
, mpTextMarkupList( nullptr )
{
}
// #i108125#
SwTextMarkupHelper::SwTextMarkupHelper( const SwAccessiblePortionData& rPortionData,
const SwWrongList& rTextMarkupList )
: mrPortionData( rPortionData )
, m_pTextFrame( nullptr )
, mpTextMarkupList( &rTextMarkupList )
{
}
std::unique_ptr<sw::WrongListIteratorCounter> SwTextMarkupHelper::getIterator(sal_Int32 nTextMarkupType)
{
std::unique_ptr<sw::WrongListIteratorCounter> pIter;
if (mpTextMarkupList)
{
pIter.reset(new sw::WrongListIteratorCounter(*mpTextMarkupList));
}
else
{
assert(m_pTextFrame);
SwWrongList const* (SwTextNode::*const pGetWrongList)() const = getTextMarkupFunc(nTextMarkupType);
if (pGetWrongList)
{
pIter.reset(new sw::WrongListIteratorCounter(*m_pTextFrame, pGetWrongList));
}
}
return pIter;
}
sal_Int32 SwTextMarkupHelper::getTextMarkupCount( const sal_Int32 nTextMarkupType )
{
sal_Int32 nTextMarkupCount( 0 );
std::unique_ptr<sw::WrongListIteratorCounter> pIter = getIterator(nTextMarkupType);
// iterator may handle all items in the underlying text node in the model, which may be more
// than what is in the portion data (e.g. if a paragraph is split across multiple pages),
// only take into account those that are in the portion data
for (sal_uInt16 i = 0; i < pIter->GetElementCount(); i++)
{
std::optional<std::pair<TextFrameIndex, TextFrameIndex>> oIndices = pIter->GetElementAt(i);
if (oIndices && mrPortionData.IsValidCorePosition(oIndices->first) && mrPortionData.IsValidCorePosition(oIndices->second))
nTextMarkupCount++;
}
return nTextMarkupCount;
}
css::accessibility::TextSegment
SwTextMarkupHelper::getTextMarkup( const sal_Int32 nTextMarkupIndex,
const sal_Int32 nTextMarkupType )
{
if ( nTextMarkupIndex >= getTextMarkupCount( nTextMarkupType ) ||
nTextMarkupIndex < 0 )
{
throw lang::IndexOutOfBoundsException();
}
css::accessibility::TextSegment aTextMarkupSegment;
aTextMarkupSegment.SegmentStart = -1;
aTextMarkupSegment.SegmentEnd = -1;
std::unique_ptr<sw::WrongListIteratorCounter> pIter = getIterator(nTextMarkupType);
if (pIter)
{
std::optional<std::pair<TextFrameIndex, TextFrameIndex>> oElement;
const sal_uInt16 nIterElementCount = pIter->GetElementCount();
sal_Int32 nIndexInPortion = 0;
sal_uInt16 nIterIndex = 0;
while (!oElement && nIterIndex < nIterElementCount)
{
// iterator may handle all items in the underlying text node in the model, which may be more
// than what is in the portion data (e.g. if a paragraph is split across multiple pages),
// only take into account those that are in the portion data
std::optional<std::pair<TextFrameIndex, TextFrameIndex>> oIndices = pIter->GetElementAt(nIterIndex);
if (oIndices && mrPortionData.IsValidCorePosition(oIndices->first) && mrPortionData.IsValidCorePosition(oIndices->second))
{
if (nIndexInPortion == nTextMarkupIndex)
oElement = oIndices;
nIndexInPortion++;
}
nIterIndex++;
}
if (oElement)
{
const OUString& rText = mrPortionData.GetAccessibleString();
const sal_Int32 nStartPos =
mrPortionData.GetAccessiblePosition(oElement->first);
const sal_Int32 nEndPos =
mrPortionData.GetAccessiblePosition(oElement->second);
aTextMarkupSegment.SegmentText = rText.copy( nStartPos, nEndPos - nStartPos );
aTextMarkupSegment.SegmentStart = nStartPos;
aTextMarkupSegment.SegmentEnd = nEndPos;
}
else
{
OSL_FAIL( "<SwTextMarkupHelper::getTextMarkup(..)> - missing <SwWrongArea> instance" );
}
}
return aTextMarkupSegment;
}
css::uno::Sequence< css::accessibility::TextSegment >
SwTextMarkupHelper::getTextMarkupAtIndex( const sal_Int32 nCharIndex,
const sal_Int32 nTextMarkupType )
{
// assumption:
// value of <nCharIndex> is in range [0..length of accessible text)
const TextFrameIndex nCoreCharIndex = mrPortionData.GetCoreViewPosition(nCharIndex);
// Handling of portions with core length == 0 at the beginning of the
// paragraph - e.g. numbering portion.
if ( mrPortionData.GetAccessiblePosition( nCoreCharIndex ) > nCharIndex )
{
return uno::Sequence< css::accessibility::TextSegment >();
}
std::unique_ptr<sw::WrongListIteratorCounter> pIter = getIterator(nTextMarkupType);
std::vector< css::accessibility::TextSegment > aTmpTextMarkups;
if (pIter)
{
const OUString& rText = mrPortionData.GetAccessibleString();
sal_uInt16 count(pIter->GetElementCount());
for (sal_uInt16 i = 0; i < count; ++i)
{
auto const oElement(pIter->GetElementAt(i));
if (oElement &&
oElement->first <= nCoreCharIndex &&
nCoreCharIndex < oElement->second)
{
const sal_Int32 nStartPos =
mrPortionData.GetAccessiblePosition(oElement->first);
const sal_Int32 nEndPos =
mrPortionData.GetAccessiblePosition(oElement->second);
css::accessibility::TextSegment aTextMarkupSegment;
aTextMarkupSegment.SegmentText = rText.copy( nStartPos, nEndPos - nStartPos );
aTextMarkupSegment.SegmentStart = nStartPos;
aTextMarkupSegment.SegmentEnd = nEndPos;
aTmpTextMarkups.push_back( aTextMarkupSegment );
}
}
}
return comphelper::containerToSequence(aTmpTextMarkups );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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