Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 911 insertions, 0 deletions

diff --git a/winaccessibility/source/UAccCOM/AccTextBase.cxx b/winaccessibility/source/UAccCOM/AccTextBase.cxx
new file mode 100644
index 000000000..a1f371a47
--- /dev/null
+++ b/winaccessibility/source/UAccCOM/AccTextBase.cxx
@@ -0,0 +1,911 @@
+/* -*- 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 .
+ */
+
+
+// AccTextBase.cpp: implementation of the CAccTextBase class.
+
+#include "stdafx.h"
+
+#include "AccTextBase.h"
+
+#include <rtl/ustrbuf.hxx>
+#include <sal/log.hxx>
+#include <vcl/svapp.hxx>
+#include <o3tl/char16_t2wchar_t.hxx>
+
+#include <com/sun/star/accessibility/AccessibleScrollType.hpp>
+#include <com/sun/star/accessibility/AccessibleTextType.hpp>
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#include <com/sun/star/accessibility/XAccessibleContext.hpp>
+#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
+#include <com/sun/star/accessibility/XAccessibleTextSelection.hpp>
+#include "MAccessible.h"
+
+using namespace css::accessibility;
+using namespace css::uno;
+
+namespace
+{
+sal_Int16 lcl_matchIA2TextBoundaryType(IA2TextBoundaryType boundaryType)
+{
+    switch (boundaryType)
+    {
+    case IA2_TEXT_BOUNDARY_CHAR:
+        return com::sun::star::accessibility::AccessibleTextType::CHARACTER;
+    case IA2_TEXT_BOUNDARY_WORD:
+       return com::sun::star::accessibility::AccessibleTextType::WORD;
+    case IA2_TEXT_BOUNDARY_SENTENCE:
+        return com::sun::star::accessibility::AccessibleTextType::SENTENCE;
+    case IA2_TEXT_BOUNDARY_PARAGRAPH:
+        return com::sun::star::accessibility::AccessibleTextType::PARAGRAPH;
+    case IA2_TEXT_BOUNDARY_LINE:
+        return com::sun::star::accessibility::AccessibleTextType::LINE;
+    case IA2_TEXT_BOUNDARY_ALL:
+        // assert here, better handle it directly at call site
+        assert(false
+               && "No match for IA2_TEXT_BOUNDARY_ALL, handle at call site.");
+        break;
+    default:
+        break;
+    }
+
+    SAL_WARN("iacc2", "Unmatched text boundary type: " << boundaryType);
+    return -1;
+}
+}
+
+
+// Construction/Destruction
+
+
+static OUString ReplaceFourChar(OUString const & oldOUString);
+
+CAccTextBase::CAccTextBase()
+{}
+
+CAccTextBase::~CAccTextBase()
+{}
+
+
+/**
+   * Get special selection.
+   * @param startOffset Start selection offset.
+   * @param endOffset   End selection offset.
+   * @param success     Variant to accept the result of if the method call is successful.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_addSelection(long startOffset, long endOffset)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    // #CHECK XInterface#
+    if(pUNOInterface == nullptr)
+        return E_FAIL;
+
+    Reference<XAccessibleContext> pRContext = pUNOInterface->getAccessibleContext();
+
+    Reference< XAccessibleTextSelection > pRExtension(pRContext,UNO_QUERY);
+
+    if( pRExtension.is() )
+    {
+        pRExtension->addSelection(0, startOffset, endOffset);
+        return S_OK;
+    }
+    else
+    {
+        GetXInterface()->setSelection(startOffset, endOffset);
+        return S_OK;
+    }
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get special attributes.
+   * @param offset Offset.
+   * @param startOffset Variant to accept start offset.
+   * @param endOffset   Variant to accept end offset.
+   * @param textAttributes     Variant to accept attributes.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_attributes(long offset, long * startOffset, long * endOffset, BSTR * textAttributes)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (startOffset == nullptr || endOffset == nullptr || textAttributes == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+    {
+        return E_FAIL;
+    }
+
+    if( offset < 0 || offset > GetXInterface()->getCharacterCount() )
+        return E_FAIL;
+
+    OUStringBuffer strAttrs("Version:1;");
+
+    Sequence< css::beans::PropertyValue > pValues = GetXInterface()->getCharacterAttributes(offset, Sequence< OUString >());
+    int nCount = pValues.getLength();
+
+    sal_Int16 numberingLevel = 0;
+    OUString numberingPrefix;
+    Any anyNumRule;
+    bool bHaveNumberingPrefixAttr = false;
+    bool bHaveNumberingLevel = false;
+    bool bHaveNumberingRules = false;
+    for(int i =0; i<nCount; i++)
+    {
+
+        const css::beans::PropertyValue &pValue = pValues[i];
+        if(pValue.Name == "NumberingLevel")
+        {
+            if (pValue.Value != Any())
+                pValue.Value >>= numberingLevel;
+            else
+                numberingLevel = -1;
+            bHaveNumberingLevel = true;
+            continue;
+        }
+        if(pValue.Name == "NumberingPrefix")
+        {
+            pValue.Value >>=numberingPrefix;
+            bHaveNumberingPrefixAttr = true;
+            continue;
+        }
+        if(pValue.Name == "NumberingRules")
+        {
+            bHaveNumberingRules = true;
+            anyNumRule = pValue.Value;
+            continue;
+        }
+        if (bHaveNumberingLevel && bHaveNumberingRules && bHaveNumberingPrefixAttr)
+        {
+            strAttrs.append(';');
+            numberingPrefix = ReplaceFourChar(numberingPrefix);
+            strAttrs.append(CMAccessible::get_String4Numbering(anyNumRule,numberingLevel,numberingPrefix));
+            bHaveNumberingLevel = false;
+            bHaveNumberingRules = false;
+        }
+        if( (bHaveNumberingPrefixAttr && i > 1 ) ||
+            (!bHaveNumberingPrefixAttr && i > 0 ) ) //element 0 is NumberingPrefix, not write alone
+        {
+            strAttrs.append(';');
+        }
+        strAttrs.append(pValue.Name);
+        strAttrs.append(':');
+
+        if (pValue.Name == "CharBackColor" ||
+                pValue.Name == "CharColor" ||
+                pValue.Name == "CharUnderlineColor" )
+        {
+            unsigned long nColor;
+            pValue.Value >>= nColor;
+            strAttrs.append('#');
+            OUString const hex = OUString::number(nColor, 16).toAsciiUpperCase();
+            for (sal_Int32 j = hex.getLength(); j < 8; ++j) {
+                strAttrs.append('0');
+            }
+            strAttrs.append(hex);
+        }
+        else
+        {
+            strAttrs.append(CMAccessible::get_StringFromAny(pValue.Value));
+        }
+    }
+    strAttrs.append(';');
+    // #CHECK#
+    if(*textAttributes)
+        SysFreeString(*textAttributes);
+    *textAttributes = SysAllocString(o3tl::toW(strAttrs.makeStringAndClear().getStr()));
+
+    if( offset < GetXInterface()->getCharacterCount() )
+    {
+        TextSegment textSeg = GetXInterface()->getTextAtIndex(offset, AccessibleTextType::ATTRIBUTE_RUN);
+        *startOffset = textSeg.SegmentStart;
+        *endOffset = textSeg.SegmentEnd;
+    }
+    else
+    {
+        *startOffset = offset;
+        *endOffset = offset;
+    }
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get caret position.
+   * @param offset     Variant to accept caret offset.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_caretOffset(long * offset)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (offset == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+    {
+        *offset = 0;
+        return S_OK;
+    }
+
+    *offset = GetXInterface()->getCaretPosition();
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get character count.
+   * @param nCharacters  Variant to accept character count.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_characterCount(long * nCharacters)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (nCharacters == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+    {
+        *nCharacters = 0;
+        return S_OK;
+    }
+
+    *nCharacters = GetXInterface()->getCharacterCount();
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get character extents.
+   * @param offset  Offset.
+   * @param x Variant to accept x position.
+   * @param y Variant to accept y position.
+   * @param width Variant to accept width.
+   * @param Height Variant to accept height.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_characterExtents(long offset, IA2CoordinateType coordType, long * x, long * y, long * width, long * height)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (x == nullptr || height == nullptr || y == nullptr || width == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    if(offset < 0 || offset > GetXInterface()->getCharacterCount() )
+        return E_FAIL;
+
+    css::awt::Rectangle rectangle;
+    rectangle = GetXInterface()->getCharacterBounds(offset);
+
+    //IA2Point aPoint;
+    css::awt::Point aPoint;
+
+    Reference<XAccessibleContext> pRContext = pUNOInterface->getAccessibleContext();
+    if( !pRContext.is() )
+    {
+        return E_FAIL;
+    }
+    Reference<XAccessibleComponent> pRComp(pRContext,UNO_QUERY);
+    if( pRComp.is() )
+    {
+        if(coordType == IA2_COORDTYPE_SCREEN_RELATIVE)
+        {
+            css::awt::Point pt = pRComp->getLocationOnScreen();
+            aPoint.X = pt.X;
+            aPoint.Y = pt.Y;
+        }
+        else if(coordType == IA2_COORDTYPE_PARENT_RELATIVE)
+        {
+            css::awt::Point pt = pRComp->getLocation();
+            aPoint.X = pt.X;
+            aPoint.Y = pt.Y;
+        }
+    }
+    rectangle.X = rectangle.X + aPoint.X;
+    rectangle.Y = rectangle.Y + aPoint.Y;
+
+    *x = rectangle.X;
+    *y = rectangle.Y;
+
+    // GetXInterface()->getCharacterBounds() have different implement in different acc component
+    // But we need return the width/height == 1 for every component when offset == text length.
+    // So we ignore the return result of GetXInterface()->getCharacterBounds() when offset == text length.
+    if( offset == GetXInterface()->getCharacterCount() )
+    {
+        *width = 1;
+        *height = 1;
+    }
+    else
+    {
+        *width = rectangle.Width;
+        *height = rectangle.Height;
+    }
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get selections count.
+   * @param nSelections Variant to accept selections count.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_nSelections(long * nSelections)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (nSelections == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(pUNOInterface == nullptr)
+    {
+        *nSelections = 0;
+        return S_OK;
+    }
+
+    Reference<XAccessibleContext> pRContext = pUNOInterface->getAccessibleContext();
+
+    Reference< XAccessibleTextSelection > pRExtension(pRContext,UNO_QUERY);
+
+    if( pRExtension.is() )
+    {
+        *nSelections = pRExtension->getSelectedPortionCount();
+        return S_OK;
+    }
+
+    long iLength = GetXInterface()->getSelectedText().getLength();
+    if( iLength> 0)
+    {
+        *nSelections = 1;
+        return S_OK;
+    }
+
+    *nSelections = 0;
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get offset of some special point.
+   * @param x X position of one point.
+   * @param x Y position of one point.
+   * @param coordType Type.
+   * @param offset Variant to accept offset.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_offsetAtPoint(long x, long y, IA2CoordinateType, long * offset)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (offset == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    css::awt::Point point;
+    point.X = x;
+    point.Y = y;
+    *offset = GetXInterface()->getIndexAtPoint(point);
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get selection range.
+   * @param selection selection count.
+   * @param startOffset Variant to accept the start offset of special selection.
+   * @param endOffset Variant to accept the end offset of special selection.
+   * @return Result.
+*/
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_selection(long selectionIndex, long * startOffset, long * endOffset)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (startOffset == nullptr || endOffset == nullptr )
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(pUNOInterface == nullptr )
+        return E_FAIL;
+
+    long nSelection = 0;
+    get_nSelections(&nSelection);
+
+    if(selectionIndex >= nSelection || selectionIndex < 0 )
+        return E_FAIL;
+
+    Reference<XAccessibleContext> pRContext = pUNOInterface->getAccessibleContext();
+
+    Reference< XAccessibleTextSelection > pRExtension(pRContext,UNO_QUERY);
+
+    if( pRExtension.is() )
+    {
+        *startOffset = pRExtension->getSeletedPositionStart(selectionIndex);
+        *endOffset = pRExtension->getSeletedPositionEnd(selectionIndex);
+        return S_OK;
+    }
+    else if(GetXInterface()->getSelectionEnd() > -1)
+    {
+        *startOffset = GetXInterface()->getSelectionStart();
+        *endOffset = GetXInterface()->getSelectionEnd();
+        return S_OK;
+    }
+
+    *startOffset = 0;
+    *endOffset = 0;
+    return E_FAIL;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get special text.
+   * @param startOffset Start position of special range.
+   * @param endOffset   End position of special range.
+   * @param text        Variant to accept the text of special range.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_text(long startOffset, long endOffset, BSTR * text)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (text == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    if (endOffset < -1 || endOffset < startOffset )
+    {
+        return E_FAIL;
+    }
+
+    OUString ouStr;
+    if (endOffset == -1 )
+    {
+        long nLen=0;
+        if(SUCCEEDED(get_characterCount(&nLen)))
+        {
+            ouStr = GetXInterface()->getTextRange( 0, nLen );
+        }
+    }
+    else
+    {
+        ouStr = GetXInterface()->getTextRange( startOffset, endOffset );
+    }
+
+    SysFreeString(*text);
+    *text = SysAllocString(o3tl::toW(ouStr.getStr()));
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get special text before some position.
+   * @param offset Special position.
+   * @param boundaryType Boundary type.
+   * @param startOffset Variant to accept the start offset.
+   * @param endOffset   Variant to accept the end offset.
+   * @param text        Variant to accept the special text.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_textBeforeOffset(long offset, IA2TextBoundaryType boundaryType, long * startOffset, long * endOffset, BSTR * text)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    // #CHECK#
+    if (startOffset == nullptr || endOffset == nullptr || text == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    if (boundaryType == IA2_TEXT_BOUNDARY_ALL)
+    {
+        long nChar;
+        get_nCharacters( &nChar );
+        *startOffset = 0;
+        *endOffset = nChar;
+        return get_text(0, nChar, text);
+    }
+
+    const sal_Int16 nUnoBoundaryType = lcl_matchIA2TextBoundaryType(boundaryType);
+    if (nUnoBoundaryType < 0)
+        return E_FAIL;
+
+    TextSegment segment = GetXInterface()->getTextBeforeIndex(offset, nUnoBoundaryType);
+    OUString ouStr = segment.SegmentText;
+    SysFreeString(*text);
+    *text = SysAllocString(o3tl::toW(ouStr.getStr()));
+    *startOffset = segment.SegmentStart;
+    *endOffset = segment.SegmentEnd;
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get special text after some position.
+   * @param offset Special position.
+   * @param boundaryType Boundary type.
+   * @param startOffset Variant to accept the start offset.
+   * @param endOffset   Variant to accept the end offset.
+   * @param text        Variant to accept the special text.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_textAfterOffset(long offset, IA2TextBoundaryType boundaryType, long * startOffset, long * endOffset, BSTR * text)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (startOffset == nullptr || endOffset == nullptr || text == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    if (boundaryType == IA2_TEXT_BOUNDARY_ALL)
+    {
+        long nChar;
+        get_nCharacters( &nChar );
+        *startOffset = 0;
+        *endOffset = nChar;
+        return get_text(0, nChar, text);
+    }
+
+    const sal_Int16 nUnoBoundaryType = lcl_matchIA2TextBoundaryType(boundaryType);
+    if (nUnoBoundaryType < 0)
+        return E_FAIL;
+
+    TextSegment segment = GetXInterface()->getTextBehindIndex(offset, nUnoBoundaryType);
+    OUString ouStr = segment.SegmentText;
+    SysFreeString(*text);
+    *text = SysAllocString(o3tl::toW(ouStr.getStr()));
+    *startOffset = segment.SegmentStart;
+    *endOffset = segment.SegmentEnd;
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get special text at some position.
+   * @param offset Special position.
+   * @param boundaryType Boundary type.
+   * @param startOffset Variant to accept the start offset.
+   * @param endOffset   Variant to accept the end offset.
+   * @param text        Variant to accept the special text.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_textAtOffset(long offset, IA2TextBoundaryType boundaryType, long * startOffset, long * endOffset, BSTR * text)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (startOffset == nullptr || text == nullptr ||endOffset == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    if (boundaryType == IA2_TEXT_BOUNDARY_ALL)
+    {
+        long nChar;
+        get_nCharacters( &nChar );
+        *startOffset = 0;
+        *endOffset = nChar;
+        return get_text(0, nChar, text);
+    }
+
+    const sal_Int16 nUnoBoundaryType = lcl_matchIA2TextBoundaryType(boundaryType);
+    if (nUnoBoundaryType < 0)
+        return E_FAIL;
+
+    TextSegment segment = GetXInterface()->getTextAtIndex(offset, nUnoBoundaryType);
+    OUString ouStr = segment.SegmentText;
+    SysFreeString(*text);
+    *text = SysAllocString(o3tl::toW(ouStr.getStr()));
+    *startOffset = segment.SegmentStart;
+    *endOffset = segment.SegmentEnd;
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Remove selection.
+   * @param selectionIndex Special selection index
+   * @param success Variant to accept the method called result.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::removeSelection(long selectionIndex)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    // #CHECK XInterface#
+    if(pUNOInterface == nullptr)
+    {
+        return E_FAIL;
+    }
+
+    Reference<XAccessibleContext> pRContext = pUNOInterface->getAccessibleContext();
+
+    Reference< XAccessibleTextSelection > pRExtension(pRContext,UNO_QUERY);
+
+    if( pRExtension.is() )
+    {
+        pRExtension->removeSelection(selectionIndex);
+        return S_OK;
+    }
+    else
+    {
+        GetXInterface()->setSelection(0, 0);
+        return S_OK;
+    }
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Set caret position.
+   * @param offset Special position.
+   * @param success Variant to accept the method called result.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::setCaretOffset(long offset)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    GetXInterface()->setCaretPosition( offset);
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Set special selection.
+   * @param selectionIndex Special selection index.
+   * @param startOffset start position.
+   * @param endOffset end position.
+   * @param success Variant to accept the method called result.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::setSelection(long, long startOffset, long endOffset)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    // #CHECK XInterface#
+    if(!pRXText.is())
+    {
+        return E_FAIL;
+    }
+
+    GetXInterface()->setSelection( startOffset, endOffset );
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Get characters count.
+   * @param nCharacters Variant to accept the characters count.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_nCharacters(long * nCharacters)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    if (nCharacters == nullptr)
+        return E_INVALIDARG;
+    // #CHECK XInterface#
+    if(!pRXText.is())
+    {
+        *nCharacters = 0;
+        return S_OK;
+    }
+
+    *nCharacters = GetXInterface()->getCharacterCount();
+
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+// added by qiuhd, 2006/07/03, for direver 07/11
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_newText( IA2TextSegment *)
+{
+    return E_NOTIMPL;
+}
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::get_oldText( IA2TextSegment *)
+{
+    return E_NOTIMPL;
+}
+
+/**
+   * Scroll to special sub-string .
+   * @param startIndex Start index of sub string.
+   * @param endIndex   End index of sub string.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::scrollSubstringToPoint(long, long, IA2CoordinateType, long, long )
+{
+    return E_NOTIMPL;
+}
+
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::scrollSubstringTo(long startIndex, long endIndex, IA2ScrollType type)
+{
+    SolarMutexGuard g;
+
+    try {
+
+    // #CHECK XInterface#
+    if(!pRXText.is())
+        return E_FAIL;
+
+    AccessibleScrollType lUnoType;
+
+    switch(type)
+    {
+    case IA2_SCROLL_TYPE_TOP_LEFT:
+        lUnoType = AccessibleScrollType_SCROLL_TOP_LEFT;
+        break;
+    case IA2_SCROLL_TYPE_BOTTOM_RIGHT:
+        lUnoType = AccessibleScrollType_SCROLL_BOTTOM_RIGHT;
+        break;
+    case IA2_SCROLL_TYPE_TOP_EDGE:
+        lUnoType = AccessibleScrollType_SCROLL_TOP_EDGE;
+        break;
+    case IA2_SCROLL_TYPE_BOTTOM_EDGE:
+        lUnoType = AccessibleScrollType_SCROLL_BOTTOM_EDGE;
+        break;
+    case IA2_SCROLL_TYPE_LEFT_EDGE:
+        lUnoType = AccessibleScrollType_SCROLL_LEFT_EDGE;
+        break;
+    case IA2_SCROLL_TYPE_RIGHT_EDGE:
+        lUnoType = AccessibleScrollType_SCROLL_RIGHT_EDGE;
+        break;
+    case IA2_SCROLL_TYPE_ANYWHERE:
+        lUnoType = AccessibleScrollType_SCROLL_ANYWHERE;
+        break;
+    default:
+        return E_NOTIMPL;
+    }
+
+    if( GetXInterface()->scrollSubstringTo(startIndex, endIndex, lUnoType) )
+        return S_OK;
+
+    return E_NOTIMPL;
+
+    } catch(...) { return E_FAIL; }
+}
+
+/**
+   * Put UNO interface.
+   * @param pXInterface UNO interface.
+   * @return Result.
+*/
+COM_DECLSPEC_NOTHROW STDMETHODIMP CAccTextBase::put_XInterface(hyper pXInterface)
+{
+    // internal IUNOXWrapper - no mutex meeded
+
+    try {
+
+    CUNOXWrapper::put_XInterface(pXInterface);
+    //special query.
+    if(pUNOInterface == nullptr)
+        return E_FAIL;
+    Reference<XAccessibleContext> pRContext = pUNOInterface->getAccessibleContext();
+    if( !pRContext.is() )
+    {
+        return E_FAIL;
+    }
+    Reference<XAccessibleText> pRXI(pRContext,UNO_QUERY);
+    if( !pRXI.is() )
+        pRXText = nullptr;
+    else
+        pRXText = pRXI;
+    return S_OK;
+
+    } catch(...) { return E_FAIL; }
+}
+
+static OUString ReplaceOneChar(OUString const & oldOUString, sal_Unicode replacedChar, std::u16string_view replaceStr)
+{
+    auto s = oldOUString;
+    int iReplace = s.lastIndexOf(replacedChar);
+    if (iReplace > -1)
+    {
+        for(;iReplace>-1;)
+        {
+            s = s.replaceAt(iReplace,1, replaceStr);
+            iReplace=s.lastIndexOf(replacedChar,iReplace);
+        }
+    }
+    return s;
+}
+
+static OUString ReplaceFourChar(OUString const & oldOUString)
+{
+    auto s = oldOUString;
+    s = ReplaceOneChar(s, '\\', u"\\\\");
+    s = ReplaceOneChar(s, ';', u"\\;");
+    s = ReplaceOneChar(s, '=', u"\\=");
+    s = ReplaceOneChar(s, ',', u"\\,");
+    s = ReplaceOneChar(s, ':', u"\\:");
+    return s;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */