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

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

53 files changed, 20516 insertions, 0 deletions

diff --git a/sw/source/core/access/AccessibilityCheck.cxx b/sw/source/core/access/AccessibilityCheck.cxx
new file mode 100644
index 000000000..50a37dc00
--- /dev/null
+++ b/sw/source/core/access/AccessibilityCheck.cxx
@@ -0,0 +1,969 @@
+/* -*- 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/.
+ *
+ */
+
+#include <AccessibilityCheck.hxx>
+#include <AccessibilityIssue.hxx>
+#include <AccessibilityCheckStrings.hrc>
+#include <ndnotxt.hxx>
+#include <ndtxt.hxx>
+#include <docsh.hxx>
+#include <IDocumentDrawModelAccess.hxx>
+#include <drawdoc.hxx>
+#include <svx/svdpage.hxx>
+#include <swtable.hxx>
+#include <com/sun/star/frame/XModel.hpp>
+#include <com/sun/star/text/XTextContent.hpp>
+#include <com/sun/star/document/XDocumentPropertiesSupplier.hpp>
+#include <unoparagraph.hxx>
+#include <tools/urlobj.hxx>
+#include <editeng/langitem.hxx>
+#include <charatr.hxx>
+#include <svx/xfillit0.hxx>
+#include <svx/xflclit.hxx>
+#include <ftnidx.hxx>
+#include <txtftn.hxx>
+#include <svl/itemiter.hxx>
+#include <o3tl/vector_utils.hxx>
+#include <svx/swframetypes.hxx>
+#include <fmtanchr.hxx>
+#include <dcontact.hxx>
+#include <svx/svdoashp.hxx>
+#include <svx/sdasitm.hxx>
+
+namespace sw
+{
+namespace
+{
+std::shared_ptr<sw::AccessibilityIssue>
+lclAddIssue(sfx::AccessibilityIssueCollection& rIssueCollection, OUString const& rText,
+            sfx::AccessibilityIssueID eIssue = sfx::AccessibilityIssueID::UNSPECIFIED)
+{
+    auto pIssue = std::make_shared<sw::AccessibilityIssue>(eIssue);
+    pIssue->m_aIssueText = rText;
+    rIssueCollection.getIssues().push_back(pIssue);
+    return pIssue;
+}
+
+class BaseCheck
+{
+protected:
+    sfx::AccessibilityIssueCollection& m_rIssueCollection;
+
+public:
+    BaseCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : m_rIssueCollection(rIssueCollection)
+    {
+    }
+    virtual ~BaseCheck() {}
+};
+
+class NodeCheck : public BaseCheck
+{
+public:
+    NodeCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : BaseCheck(rIssueCollection)
+    {
+    }
+
+    virtual void check(SwNode* pCurrent) = 0;
+};
+
+// Check NoTextNodes: Graphic, OLE for alt (title) text
+class NoTextNodeAltTextCheck : public NodeCheck
+{
+    void checkNoTextNode(SwNoTextNode* pNoTextNode)
+    {
+        if (!pNoTextNode)
+            return;
+
+        OUString sAlternative = pNoTextNode->GetTitle();
+        if (!sAlternative.isEmpty())
+            return;
+
+        OUString sName = pNoTextNode->GetFlyFormat()->GetName();
+
+        OUString sIssueText = SwResId(STR_NO_ALT).replaceAll("%OBJECT_NAME%", sName);
+
+        if (pNoTextNode->IsOLENode())
+        {
+            auto pIssue = lclAddIssue(m_rIssueCollection, sIssueText,
+                                      sfx::AccessibilityIssueID::NO_ALT_OLE);
+            pIssue->setDoc(pNoTextNode->GetDoc());
+            pIssue->setIssueObject(IssueObject::OLE);
+            pIssue->setObjectID(pNoTextNode->GetFlyFormat()->GetName());
+        }
+        else if (pNoTextNode->IsGrfNode())
+        {
+            auto pIssue = lclAddIssue(m_rIssueCollection, sIssueText,
+                                      sfx::AccessibilityIssueID::NO_ALT_GRAPHIC);
+            pIssue->setDoc(pNoTextNode->GetDoc());
+            pIssue->setIssueObject(IssueObject::GRAPHIC);
+            pIssue->setObjectID(pNoTextNode->GetFlyFormat()->GetName());
+        }
+    }
+
+public:
+    NoTextNodeAltTextCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (pCurrent->GetNodeType() & SwNodeType::NoTextMask)
+        {
+            SwNoTextNode* pNoTextNode = pCurrent->GetNoTextNode();
+            if (pNoTextNode)
+                checkNoTextNode(pNoTextNode);
+        }
+    }
+};
+
+// Check Table node if the table is merged and split.
+class TableNodeMergeSplitCheck : public NodeCheck
+{
+private:
+    void addTableIssue(SwTable const& rTable, SwDoc& rDoc)
+    {
+        const SwTableFormat* pFormat = rTable.GetFrameFormat();
+        OUString sName = pFormat->GetName();
+        OUString sIssueText = SwResId(STR_TABLE_MERGE_SPLIT).replaceAll("%OBJECT_NAME%", sName);
+        auto pIssue = lclAddIssue(m_rIssueCollection, sIssueText,
+                                  sfx::AccessibilityIssueID::TABLE_MERGE_SPLIT);
+        pIssue->setDoc(rDoc);
+        pIssue->setIssueObject(IssueObject::TABLE);
+        pIssue->setObjectID(sName);
+    }
+
+    void checkTableNode(SwTableNode* pTableNode)
+    {
+        if (!pTableNode)
+            return;
+
+        SwTable const& rTable = pTableNode->GetTable();
+        SwDoc& rDoc = pTableNode->GetDoc();
+        if (rTable.IsTableComplex())
+        {
+            addTableIssue(rTable, rDoc);
+        }
+        else
+        {
+            if (rTable.GetTabLines().size() > 1)
+            {
+                int i = 0;
+                size_t nFirstLineSize = 0;
+                bool bAllColumnsSameSize = true;
+                bool bCellSpansOverMoreRows = false;
+
+                for (SwTableLine const* pTableLine : rTable.GetTabLines())
+                {
+                    if (i == 0)
+                    {
+                        nFirstLineSize = pTableLine->GetTabBoxes().size();
+                    }
+                    else
+                    {
+                        size_t nLineSize = pTableLine->GetTabBoxes().size();
+                        if (nFirstLineSize != nLineSize)
+                        {
+                            bAllColumnsSameSize = false;
+                        }
+                    }
+                    i++;
+
+                    // Check for row span in each table box (cell)
+                    for (SwTableBox const* pBox : pTableLine->GetTabBoxes())
+                    {
+                        if (pBox->getRowSpan() > 1)
+                            bCellSpansOverMoreRows = true;
+                    }
+                }
+                if (!bAllColumnsSameSize || bCellSpansOverMoreRows)
+                {
+                    addTableIssue(rTable, rDoc);
+                }
+            }
+        }
+    }
+
+public:
+    TableNodeMergeSplitCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (pCurrent->GetNodeType() & SwNodeType::Table)
+        {
+            SwTableNode* pTableNode = pCurrent->GetTableNode();
+            if (pTableNode)
+                checkTableNode(pTableNode);
+        }
+    }
+};
+
+class NumberingCheck : public NodeCheck
+{
+private:
+    SwTextNode* m_pPreviousTextNode;
+
+    const std::vector<std::pair<OUString, OUString>> m_aNumberingCombinations{
+        { "1.", "2." }, { "(1)", "(2)" }, { "1)", "2)" },   { "a.", "b." }, { "(a)", "(b)" },
+        { "a)", "b)" }, { "A.", "B." },   { "(A)", "(B)" }, { "A)", "B)" }
+    };
+
+public:
+    NumberingCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+        , m_pPreviousTextNode(nullptr)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        if (m_pPreviousTextNode)
+        {
+            for (auto& rPair : m_aNumberingCombinations)
+            {
+                if (pCurrent->GetTextNode()->GetText().startsWith(rPair.second)
+                    && m_pPreviousTextNode->GetText().startsWith(rPair.first))
+                {
+                    OUString sNumbering = rPair.first + " " + rPair.second + "...";
+                    OUString sIssueText
+                        = SwResId(STR_FAKE_NUMBERING).replaceAll("%NUMBERING%", sNumbering);
+                    lclAddIssue(m_rIssueCollection, sIssueText);
+                }
+            }
+        }
+        m_pPreviousTextNode = pCurrent->GetTextNode();
+    }
+};
+
+class HyperlinkCheck : public NodeCheck
+{
+private:
+    void checkTextRange(uno::Reference<text::XTextRange> const& xTextRange)
+    {
+        uno::Reference<beans::XPropertySet> xProperties(xTextRange, uno::UNO_QUERY);
+        if (!xProperties->getPropertySetInfo()->hasPropertyByName("HyperLinkURL"))
+            return;
+
+        OUString sHyperlink;
+        xProperties->getPropertyValue("HyperLinkURL") >>= sHyperlink;
+        if (!sHyperlink.isEmpty())
+        {
+            OUString sText = xTextRange->getString();
+            if (INetURLObject(sText) == INetURLObject(sHyperlink))
+            {
+                OUString sIssueText
+                    = SwResId(STR_HYPERLINK_TEXT_IS_LINK).replaceFirst("%LINK%", sHyperlink);
+                lclAddIssue(m_rIssueCollection, sIssueText);
+            }
+        }
+    }
+
+public:
+    HyperlinkCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        SwTextNode* pTextNode = pCurrent->GetTextNode();
+        uno::Reference<text::XTextContent> xParagraph
+            = SwXParagraph::CreateXParagraph(pTextNode->GetDoc(), pTextNode);
+        if (!xParagraph.is())
+            return;
+
+        uno::Reference<container::XEnumerationAccess> xRunEnumAccess(xParagraph, uno::UNO_QUERY);
+        uno::Reference<container::XEnumeration> xRunEnum = xRunEnumAccess->createEnumeration();
+        while (xRunEnum->hasMoreElements())
+        {
+            uno::Reference<text::XTextRange> xRun(xRunEnum->nextElement(), uno::UNO_QUERY);
+            if (xRun.is())
+            {
+                checkTextRange(xRun);
+            }
+        }
+    }
+};
+
+// Based on https://www.w3.org/TR/WCAG21/#dfn-relative-luminance
+double calculateRelativeLuminance(Color const& rColor)
+{
+    // Convert to BColor which has R, G, B colors components
+    // represented by a floating point number from [0.0, 1.0]
+    const basegfx::BColor aBColor = rColor.getBColor();
+
+    double r = aBColor.getRed();
+    double g = aBColor.getGreen();
+    double b = aBColor.getBlue();
+
+    // Calculate the values according to the described algorithm
+    r = (r <= 0.03928) ? r / 12.92 : std::pow((r + 0.055) / 1.055, 2.4);
+    g = (g <= 0.03928) ? g / 12.92 : std::pow((g + 0.055) / 1.055, 2.4);
+    b = (b <= 0.03928) ? b / 12.92 : std::pow((b + 0.055) / 1.055, 2.4);
+
+    return 0.2126 * r + 0.7152 * g + 0.0722 * b;
+}
+
+// TODO move to common color tools (BColorTools maybe)
+// Based on https://www.w3.org/TR/WCAG21/#dfn-contrast-ratio
+double calculateContrastRatio(Color const& rColor1, Color const& rColor2)
+{
+    const double fLuminance1 = calculateRelativeLuminance(rColor1);
+    const double fLuminance2 = calculateRelativeLuminance(rColor2);
+    const std::pair<const double, const double> aMinMax = std::minmax(fLuminance1, fLuminance2);
+
+    // (L1 + 0.05) / (L2 + 0.05)
+    // L1 is the lighter color (greater luminance value)
+    // L2 is the darker color (smaller luminance value)
+    return (aMinMax.second + 0.05) / (aMinMax.first + 0.05);
+}
+
+class TextContrastCheck : public NodeCheck
+{
+private:
+    void checkTextRange(uno::Reference<text::XTextRange> const& xTextRange,
+                        uno::Reference<text::XTextContent> const& xParagraph,
+                        const SwTextNode* pTextNode)
+    {
+        Color nParaBackColor(COL_AUTO);
+        uno::Reference<beans::XPropertySet> xParagraphProperties(xParagraph, uno::UNO_QUERY);
+        if (!(xParagraphProperties->getPropertyValue("ParaBackColor") >>= nParaBackColor))
+        {
+            SAL_WARN("sw.a11y", "ParaBackColor void");
+            return;
+        }
+
+        uno::Reference<beans::XPropertySet> xProperties(xTextRange, uno::UNO_QUERY);
+        if (!xProperties.is())
+            return;
+
+        // Foreground color
+        sal_Int32 nCharColor = {}; // spurious -Werror=maybe-uninitialized
+        if (!(xProperties->getPropertyValue("CharColor") >>= nCharColor))
+        { // not sure this is impossible, can the default be void?
+            SAL_WARN("sw.a11y", "CharColor void");
+            return;
+        }
+        Color aForegroundColor(ColorTransparency, nCharColor);
+        if (aForegroundColor == COL_AUTO)
+            return;
+
+        const SwPageDesc* pPageDescription = pTextNode->FindPageDesc();
+        const SwFrameFormat& rPageFormat = pPageDescription->GetMaster();
+        const SwAttrSet& rPageSet = rPageFormat.GetAttrSet();
+
+        const XFillStyleItem* pXFillStyleItem(
+            rPageSet.GetItem<XFillStyleItem>(XATTR_FILLSTYLE, false));
+        Color aPageBackground(COL_AUTO);
+
+        if (pXFillStyleItem && pXFillStyleItem->GetValue() == css::drawing::FillStyle_SOLID)
+        {
+            const XFillColorItem* rXFillColorItem
+                = rPageSet.GetItem<XFillColorItem>(XATTR_FILLCOLOR, false);
+            aPageBackground = rXFillColorItem->GetColorValue();
+        }
+
+        Color nCharBackColor(COL_AUTO);
+
+        if (!(xProperties->getPropertyValue("CharBackColor") >>= nCharBackColor))
+        {
+            SAL_WARN("sw.a11y", "CharBackColor void");
+            return;
+        }
+        // Determine the background color
+        // Try Character background (highlight)
+        Color aBackgroundColor(nCharBackColor);
+
+        // If not character background color, try paragraph background color
+        if (aBackgroundColor == COL_AUTO)
+            aBackgroundColor = nParaBackColor;
+
+        // If not paragraph background color, try page color
+        if (aBackgroundColor == COL_AUTO)
+            aBackgroundColor = aPageBackground;
+
+        // If not page color, assume white background color
+        if (aBackgroundColor == COL_AUTO)
+            aBackgroundColor = COL_WHITE;
+
+        double fContrastRatio = calculateContrastRatio(aForegroundColor, aBackgroundColor);
+        if (fContrastRatio < 4.5)
+        {
+            lclAddIssue(m_rIssueCollection, SwResId(STR_TEXT_CONTRAST));
+        }
+    }
+
+public:
+    TextContrastCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        SwTextNode* pTextNode = pCurrent->GetTextNode();
+        uno::Reference<text::XTextContent> xParagraph;
+        xParagraph = SwXParagraph::CreateXParagraph(pTextNode->GetDoc(), pTextNode);
+        if (!xParagraph.is())
+            return;
+
+        uno::Reference<container::XEnumerationAccess> xRunEnumAccess(xParagraph, uno::UNO_QUERY);
+        uno::Reference<container::XEnumeration> xRunEnum = xRunEnumAccess->createEnumeration();
+        while (xRunEnum->hasMoreElements())
+        {
+            uno::Reference<text::XTextRange> xRun(xRunEnum->nextElement(), uno::UNO_QUERY);
+            if (xRun.is())
+                checkTextRange(xRun, xParagraph, pTextNode);
+        }
+    }
+};
+
+class TextFormattingCheck : public NodeCheck
+{
+private:
+public:
+    TextFormattingCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void checkAutoFormat(SwTextNode* pTextNode, const SwTextAttr* pTextAttr)
+    {
+        const SwFormatAutoFormat& rAutoFormat = pTextAttr->GetAutoFormat();
+        SfxItemIter aItemIter(*rAutoFormat.GetStyleHandle());
+        const SfxPoolItem* pItem = aItemIter.GetCurItem();
+        std::vector<OUString> aFormattings;
+        while (pItem)
+        {
+            OUString sFormattingType;
+            switch (pItem->Which())
+            {
+                case RES_CHRATR_WEIGHT:
+                case RES_CHRATR_CJK_WEIGHT:
+                case RES_CHRATR_CTL_WEIGHT:
+                    sFormattingType = "Weight";
+                    break;
+                case RES_CHRATR_POSTURE:
+                case RES_CHRATR_CJK_POSTURE:
+                case RES_CHRATR_CTL_POSTURE:
+                    sFormattingType = "Posture";
+                    break;
+
+                case RES_CHRATR_SHADOWED:
+                    sFormattingType = "Shadowed";
+                    break;
+
+                case RES_CHRATR_COLOR:
+                    sFormattingType = "Font Color";
+                    break;
+
+                case RES_CHRATR_FONTSIZE:
+                case RES_CHRATR_CJK_FONTSIZE:
+                case RES_CHRATR_CTL_FONTSIZE:
+                    sFormattingType = "Font Size";
+                    break;
+
+                case RES_CHRATR_FONT:
+                case RES_CHRATR_CJK_FONT:
+                case RES_CHRATR_CTL_FONT:
+                    sFormattingType = "Font";
+                    break;
+
+                case RES_CHRATR_EMPHASIS_MARK:
+                    sFormattingType = "Emphasis Mark";
+                    break;
+
+                case RES_CHRATR_UNDERLINE:
+                    sFormattingType = "Underline";
+                    break;
+
+                case RES_CHRATR_OVERLINE:
+                    sFormattingType = "Overline";
+                    break;
+
+                case RES_CHRATR_CROSSEDOUT:
+                    sFormattingType = "Strikethrough";
+                    break;
+
+                case RES_CHRATR_RELIEF:
+                    sFormattingType = "Relief";
+                    break;
+
+                case RES_CHRATR_CONTOUR:
+                    sFormattingType = "Outline";
+                    break;
+                default:
+                    break;
+            }
+            if (!sFormattingType.isEmpty())
+                aFormattings.push_back(sFormattingType);
+            pItem = aItemIter.NextItem();
+        }
+        if (aFormattings.empty())
+            return;
+
+        o3tl::remove_duplicates(aFormattings);
+        auto pIssue = lclAddIssue(m_rIssueCollection, SwResId(STR_TEXT_FORMATTING_CONVEYS_MEANING),
+                                  sfx::AccessibilityIssueID::TEXT_FORMATTING);
+        pIssue->setIssueObject(IssueObject::TEXT);
+        pIssue->setNode(pTextNode);
+        SwDoc& rDocument = pTextNode->GetDoc();
+        pIssue->setDoc(rDocument);
+        pIssue->setStart(pTextAttr->GetStart());
+        pIssue->setEnd(pTextAttr->GetAnyEnd());
+    }
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        SwTextNode* pTextNode = pCurrent->GetTextNode();
+        if (pTextNode->HasHints())
+        {
+            SwpHints& rHints = pTextNode->GetSwpHints();
+            for (size_t i = 0; i < rHints.Count(); ++i)
+            {
+                const SwTextAttr* pTextAttr = rHints.Get(i);
+                if (pTextAttr->Which() == RES_TXTATR_AUTOFMT)
+                {
+                    checkAutoFormat(pTextNode, pTextAttr);
+                }
+            }
+        }
+    }
+};
+
+class BlinkingTextCheck : public NodeCheck
+{
+private:
+    void checkTextRange(uno::Reference<text::XTextRange> const& xTextRange)
+    {
+        uno::Reference<beans::XPropertySet> xProperties(xTextRange, uno::UNO_QUERY);
+        if (xProperties.is() && xProperties->getPropertySetInfo()->hasPropertyByName("CharFlash"))
+        {
+            bool bBlinking = false;
+            xProperties->getPropertyValue("CharFlash") >>= bBlinking;
+
+            if (bBlinking)
+            {
+                lclAddIssue(m_rIssueCollection, SwResId(STR_TEXT_BLINKING));
+            }
+        }
+    }
+
+public:
+    BlinkingTextCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        SwTextNode* pTextNode = pCurrent->GetTextNode();
+        uno::Reference<text::XTextContent> xParagraph;
+        xParagraph = SwXParagraph::CreateXParagraph(pTextNode->GetDoc(), pTextNode);
+        if (!xParagraph.is())
+            return;
+
+        uno::Reference<container::XEnumerationAccess> xRunEnumAccess(xParagraph, uno::UNO_QUERY);
+        uno::Reference<container::XEnumeration> xRunEnum = xRunEnumAccess->createEnumeration();
+        while (xRunEnum->hasMoreElements())
+        {
+            uno::Reference<text::XTextRange> xRun(xRunEnum->nextElement(), uno::UNO_QUERY);
+            if (xRun.is())
+                checkTextRange(xRun);
+        }
+    }
+};
+
+class HeaderCheck : public NodeCheck
+{
+private:
+    int m_nPreviousLevel;
+
+public:
+    HeaderCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+        , m_nPreviousLevel(0)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        SwTextNode* pTextNode = pCurrent->GetTextNode();
+        SwTextFormatColl* pCollection = pTextNode->GetTextColl();
+        if (!pCollection->IsAssignedToListLevelOfOutlineStyle())
+            return;
+
+        int nLevel = pCollection->GetAssignedOutlineStyleLevel();
+        assert(nLevel >= 0);
+        if (nLevel > m_nPreviousLevel && std::abs(nLevel - m_nPreviousLevel) > 1)
+        {
+            lclAddIssue(m_rIssueCollection, SwResId(STR_HEADINGS_NOT_IN_ORDER));
+        }
+        m_nPreviousLevel = nLevel;
+    }
+};
+
+// ISO 142891-1 : 7.14
+class NonInteractiveFormCheck : public NodeCheck
+{
+public:
+    NonInteractiveFormCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!pCurrent->IsTextNode())
+            return;
+
+        const auto& text = pCurrent->GetTextNode()->GetText();
+
+        // Series of tests to detect if there are fake forms in the text.
+
+        bool bCheck = text.indexOf("___") == -1; // Repeated underscores.
+
+        if (bCheck)
+            bCheck = text.indexOf("....") == -1; // Repeated dots.
+
+        if (bCheck)
+            bCheck = text.indexOf(u"……") == -1; // Repeated ellipsis.
+
+        if (bCheck)
+            bCheck = text.indexOf(u"….") == -1; // A dot after an ellipsis.
+
+        if (bCheck)
+            bCheck = text.indexOf(u".…") == -1; // An ellipsis after a dot.
+
+        // Checking if all the tests are passed successfully. If not, adding a warning.
+        if (!bCheck)
+            lclAddIssue(m_rIssueCollection, SwResId(STR_NON_INTERACTIVE_FORMS));
+    }
+};
+
+/// Check for floating text frames, as it causes problems with reading order.
+class FloatingTextCheck : public NodeCheck
+{
+public:
+    FloatingTextCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        // if node is a text-node and if it has text, we proceed. Otherwise - return.
+        const SwTextNode* textNode = pCurrent->GetTextNode();
+        if (!textNode || textNode->GetText().isEmpty())
+            return;
+
+        // If a node is in fly and if it is not anchored as char, throw warning.
+        const SwNode* startFly = pCurrent->FindFlyStartNode();
+        if (startFly
+            && startFly->GetFlyFormat()->GetAnchor().GetAnchorId() != RndStdIds::FLY_AS_CHAR)
+            lclAddIssue(m_rIssueCollection, SwResId(STR_FLOATING_TEXT));
+    }
+};
+
+/// Heading paragraphs (with outline levels > 0) are not allowed in tables
+class TableHeadingCheck : public NodeCheck
+{
+private:
+    // Boolean indicating if heading-in-table warning is already triggered.
+    bool m_bPrevPassed;
+
+public:
+    TableHeadingCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+        , m_bPrevPassed(true)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        if (!m_bPrevPassed)
+            return;
+
+        const SwTextNode* textNode = pCurrent->GetTextNode();
+
+        if (textNode && textNode->GetAttrOutlineLevel() != 0)
+        {
+            const SwTableNode* parentTable = pCurrent->FindTableNode();
+
+            if (parentTable)
+            {
+                m_bPrevPassed = false;
+                lclAddIssue(m_rIssueCollection, SwResId(STR_HEADING_IN_TABLE));
+            }
+        }
+    }
+};
+
+/// Checking if headings are ordered correctly.
+class HeadingOrderCheck : public NodeCheck
+{
+public:
+    HeadingOrderCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : NodeCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwNode* pCurrent) override
+    {
+        const SwTextNode* pTextNode = pCurrent->GetTextNode();
+        if (!pTextNode)
+            return;
+
+        // If outline level stands for heading level...
+        const int currentLevel = pTextNode->GetAttrOutlineLevel();
+        if (!currentLevel)
+            return;
+
+        // ... and if is bigger than previous by more than 1, warn.
+        if (currentLevel - m_prevLevel > 1)
+        {
+            // Preparing and posting a warning.
+            OUString resultString = SwResId(STR_HEADING_ORDER);
+            resultString
+                = resultString.replaceAll("%LEVEL_CURRENT%", OUString::number(currentLevel));
+            resultString = resultString.replaceAll("%LEVEL_PREV%", OUString::number(m_prevLevel));
+
+            lclAddIssue(m_rIssueCollection, resultString);
+        }
+
+        // Updating previous level.
+        m_prevLevel = currentLevel;
+    }
+
+private:
+    // Previous heading level to compare with.
+    int m_prevLevel = 0;
+};
+
+class DocumentCheck : public BaseCheck
+{
+public:
+    DocumentCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : BaseCheck(rIssueCollection)
+    {
+    }
+
+    virtual void check(SwDoc* pDoc) = 0;
+};
+
+// Check default language
+class DocumentDefaultLanguageCheck : public DocumentCheck
+{
+public:
+    DocumentDefaultLanguageCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : DocumentCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwDoc* pDoc) override
+    {
+        // TODO maybe - also check RES_CHRATR_CJK_LANGUAGE, RES_CHRATR_CTL_LANGUAGE if CJK or CTL are enabled
+        const SvxLanguageItem& rLang = pDoc->GetDefault(RES_CHRATR_LANGUAGE);
+        LanguageType eLanguage = rLang.GetLanguage();
+        if (eLanguage == LANGUAGE_NONE)
+        {
+            lclAddIssue(m_rIssueCollection, SwResId(STR_DOCUMENT_DEFAULT_LANGUAGE),
+                        sfx::AccessibilityIssueID::DOCUMENT_LANGUAGE);
+        }
+        else
+        {
+            for (SwTextFormatColl* pTextFormatCollection : *pDoc->GetTextFormatColls())
+            {
+                const SwAttrSet& rAttrSet = pTextFormatCollection->GetAttrSet();
+                if (rAttrSet.GetLanguage(false).GetLanguage() == LANGUAGE_NONE)
+                {
+                    OUString sName = pTextFormatCollection->GetName();
+                    OUString sIssueText
+                        = SwResId(STR_STYLE_NO_LANGUAGE).replaceAll("%STYLE_NAME%", sName);
+                    lclAddIssue(m_rIssueCollection, sIssueText,
+                                sfx::AccessibilityIssueID::STYLE_LANGUAGE);
+                }
+            }
+        }
+    }
+};
+
+class DocumentTitleCheck : public DocumentCheck
+{
+public:
+    DocumentTitleCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : DocumentCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwDoc* pDoc) override
+    {
+        SwDocShell* pShell = pDoc->GetDocShell();
+        if (!pShell)
+            return;
+
+        const uno::Reference<document::XDocumentPropertiesSupplier> xDPS(pShell->GetModel(),
+                                                                         uno::UNO_QUERY_THROW);
+        const uno::Reference<document::XDocumentProperties> xDocumentProperties(
+            xDPS->getDocumentProperties());
+        OUString sTitle = xDocumentProperties->getTitle();
+        if (sTitle.trim().isEmpty())
+        {
+            lclAddIssue(m_rIssueCollection, SwResId(STR_DOCUMENT_TITLE),
+                        sfx::AccessibilityIssueID::DOCUMENT_TITLE);
+        }
+    }
+};
+
+class FootnoteEndnoteCheck : public DocumentCheck
+{
+public:
+    FootnoteEndnoteCheck(sfx::AccessibilityIssueCollection& rIssueCollection)
+        : DocumentCheck(rIssueCollection)
+    {
+    }
+
+    void check(SwDoc* pDoc) override
+    {
+        for (SwTextFootnote const* pTextFootnote : pDoc->GetFootnoteIdxs())
+        {
+            SwFormatFootnote const& rFootnote = pTextFootnote->GetFootnote();
+            if (rFootnote.IsEndNote())
+            {
+                lclAddIssue(m_rIssueCollection, SwResId(STR_AVOID_ENDNOTES));
+            }
+            else
+            {
+                lclAddIssue(m_rIssueCollection, SwResId(STR_AVOID_FOOTNOTES));
+            }
+        }
+    }
+};
+
+} // end anonymous namespace
+
+// Check Shapes, TextBox
+void AccessibilityCheck::checkObject(SdrObject* pObject)
+{
+    if (!pObject)
+        return;
+
+    // Check for fontworks.
+    if (SdrObjCustomShape* pCustomShape = dynamic_cast<SdrObjCustomShape*>(pObject))
+    {
+        const SdrCustomShapeGeometryItem& rGeometryItem
+            = pCustomShape->GetMergedItem(SDRATTR_CUSTOMSHAPE_GEOMETRY);
+
+        if (const uno::Any* pAny = rGeometryItem.GetPropertyValueByName("Type"))
+            if (pAny->get<OUString>().startsWith("fontwork-"))
+                lclAddIssue(m_aIssueCollection, SwResId(STR_FONTWORKS));
+    }
+
+    // Checking if there is floating Writer text draw object and if so, throwing a warning.
+    // (Floating objects with text create problems with reading order)
+    if (pObject->HasText()
+        && FindFrameFormat(pObject)->GetAnchor().GetAnchorId() != RndStdIds::FLY_AS_CHAR)
+        lclAddIssue(m_aIssueCollection, SwResId(STR_FLOATING_TEXT));
+
+    if (pObject->GetObjIdentifier() == SdrObjKind::CustomShape
+        || pObject->GetObjIdentifier() == SdrObjKind::Text)
+    {
+        OUString sAlternative = pObject->GetTitle();
+        if (sAlternative.isEmpty())
+        {
+            OUString sName = pObject->GetName();
+            OUString sIssueText = SwResId(STR_NO_ALT).replaceAll("%OBJECT_NAME%", sName);
+            lclAddIssue(m_aIssueCollection, sIssueText, sfx::AccessibilityIssueID::NO_ALT_SHAPE);
+        }
+    }
+}
+
+void AccessibilityCheck::check()
+{
+    if (m_pDoc == nullptr)
+        return;
+
+    std::vector<std::unique_ptr<DocumentCheck>> aDocumentChecks;
+    aDocumentChecks.push_back(std::make_unique<DocumentDefaultLanguageCheck>(m_aIssueCollection));
+    aDocumentChecks.push_back(std::make_unique<DocumentTitleCheck>(m_aIssueCollection));
+    aDocumentChecks.push_back(std::make_unique<FootnoteEndnoteCheck>(m_aIssueCollection));
+
+    for (std::unique_ptr<DocumentCheck>& rpDocumentCheck : aDocumentChecks)
+    {
+        rpDocumentCheck->check(m_pDoc);
+    }
+
+    std::vector<std::unique_ptr<NodeCheck>> aNodeChecks;
+    aNodeChecks.push_back(std::make_unique<NoTextNodeAltTextCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<TableNodeMergeSplitCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<NumberingCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<HyperlinkCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<TextContrastCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<BlinkingTextCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<HeaderCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<TextFormattingCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<NonInteractiveFormCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<FloatingTextCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<TableHeadingCheck>(m_aIssueCollection));
+    aNodeChecks.push_back(std::make_unique<HeadingOrderCheck>(m_aIssueCollection));
+
+    auto const& pNodes = m_pDoc->GetNodes();
+    SwNode* pNode = nullptr;
+    for (SwNodeOffset n(0); n < pNodes.Count(); ++n)
+    {
+        pNode = pNodes[n];
+        if (pNode)
+        {
+            for (std::unique_ptr<NodeCheck>& rpNodeCheck : aNodeChecks)
+            {
+                rpNodeCheck->check(pNode);
+            }
+        }
+    }
+
+    IDocumentDrawModelAccess& rDrawModelAccess = m_pDoc->getIDocumentDrawModelAccess();
+    auto* pModel = rDrawModelAccess.GetDrawModel();
+    for (sal_uInt16 nPage = 0; nPage < pModel->GetPageCount(); ++nPage)
+    {
+        SdrPage* pPage = pModel->GetPage(nPage);
+        for (size_t nObject = 0; nObject < pPage->GetObjCount(); ++nObject)
+        {
+            SdrObject* pObject = pPage->GetObj(nObject);
+            if (pObject)
+                checkObject(pObject);
+        }
+    }
+}
+
+} // end sw namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/AccessibilityIssue.cxx b/sw/source/core/access/AccessibilityIssue.cxx
new file mode 100644
index 000000000..f8b8e3858
--- /dev/null
+++ b/sw/source/core/access/AccessibilityIssue.cxx
@@ -0,0 +1,89 @@
+/* -*- 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/.
+ *
+ */
+
+#include <AccessibilityIssue.hxx>
+#include <wrtsh.hxx>
+#include <docsh.hxx>
+#include <comphelper/lok.hxx>
+
+namespace sw
+{
+AccessibilityIssue::AccessibilityIssue(sfx::AccessibilityIssueID eIssueID)
+    : sfx::AccessibilityIssue(eIssueID)
+    , m_eIssueObject(IssueObject::UNKNOWN)
+    , m_pDoc(nullptr)
+    , m_pNode(nullptr)
+    , m_nStart(0)
+    , m_nEnd(0)
+{
+}
+
+void AccessibilityIssue::setIssueObject(IssueObject eIssueObject) { m_eIssueObject = eIssueObject; }
+
+void AccessibilityIssue::setDoc(SwDoc& rDoc) { m_pDoc = &rDoc; }
+
+void AccessibilityIssue::setObjectID(OUString const& rID) { m_sObjectID = rID; }
+
+bool AccessibilityIssue::canGotoIssue() const
+{
+    if (m_eIssueObject != IssueObject::UNKNOWN)
+        return true;
+    return false;
+}
+
+void AccessibilityIssue::gotoIssue() const
+{
+    if (!m_pDoc)
+        return;
+
+    switch (m_eIssueObject)
+    {
+        case IssueObject::GRAPHIC:
+        case IssueObject::OLE:
+        {
+            SwWrtShell* pWrtShell = m_pDoc->GetDocShell()->GetWrtShell();
+            pWrtShell->GotoFly(m_sObjectID, FLYCNTTYPE_ALL, true);
+            if (comphelper::LibreOfficeKit::isActive())
+                pWrtShell->ShowCursor();
+        }
+        break;
+        case IssueObject::TABLE:
+        {
+            SwWrtShell* pWrtShell = m_pDoc->GetDocShell()->GetWrtShell();
+            pWrtShell->GotoTable(m_sObjectID);
+            if (comphelper::LibreOfficeKit::isActive())
+                pWrtShell->ShowCursor();
+        }
+        break;
+        case IssueObject::TEXT:
+        {
+            SwWrtShell* pWrtShell = m_pDoc->GetDocShell()->GetWrtShell();
+            SwContentNode* pContentNode = m_pNode->GetContentNode();
+            SwPosition aPoint(*pContentNode, m_nStart);
+            SwPosition aMark(*pContentNode, m_nEnd);
+            pWrtShell->EnterStdMode();
+            pWrtShell->StartAllAction();
+            SwPaM* pPaM = pWrtShell->GetCursor();
+            *pPaM->GetPoint() = aPoint;
+            pPaM->SetMark();
+            *pPaM->GetMark() = aMark;
+            pWrtShell->EndAllAction();
+            if (comphelper::LibreOfficeKit::isActive())
+                pWrtShell->ShowCursor();
+        }
+        break;
+        default:
+            break;
+    }
+}
+
+} // end sw namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acccell.cxx b/sw/source/core/access/acccell.cxx
new file mode 100644
index 000000000..546c0457c
--- /dev/null
+++ b/sw/source/core/access/acccell.cxx
@@ -0,0 +1,472 @@
+/* -*- 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 <sal/log.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/typeprovider.hxx>
+#include <vcl/svapp.hxx>
+#include <cellfrm.hxx>
+#include <tabfrm.hxx>
+#include <swtable.hxx>
+#include <crsrsh.hxx>
+#include <viscrs.hxx>
+#include "accfrmobj.hxx"
+#include "accfrmobjslist.hxx"
+#include <frmfmt.hxx>
+#include <cellatr.hxx>
+#include <accmap.hxx>
+#include "acccell.hxx"
+
+#include <cfloat>
+#include <string_view>
+
+#include <editeng/brushitem.hxx>
+#include <swatrset.hxx>
+#include <frmatr.hxx>
+#include "acctable.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using namespace sw::access;
+
+constexpr OUStringLiteral sImplementationName = u"com.sun.star.comp.Writer.SwAccessibleCellView";
+
+bool SwAccessibleCell::IsSelected()
+{
+    bool bRet = false;
+
+    assert(GetMap());
+    const SwViewShell *pVSh = GetMap()->GetShell();
+    assert(pVSh);
+    if( auto pCSh = dynamic_cast<const SwCursorShell*>(pVSh) )
+    {
+        if( pCSh->IsTableMode() )
+        {
+            const SwCellFrame *pCFrame =
+                static_cast< const SwCellFrame * >( GetFrame() );
+            SwTableBox *pBox =
+                const_cast< SwTableBox *>( pCFrame->GetTabBox() );
+            SwSelBoxes const& rBoxes(pCSh->GetTableCursor()->GetSelectedBoxes());
+            bRet = rBoxes.find(pBox) != rBoxes.end();
+        }
+    }
+
+    return bRet;
+}
+
+void SwAccessibleCell::GetStates( ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SwAccessibleContext::GetStates( rStateSet );
+
+    // SELECTABLE
+    const SwViewShell *pVSh = GetMap()->GetShell();
+    assert(pVSh);
+    if( dynamic_cast<const SwCursorShell*>( pVSh) !=  nullptr )
+        rStateSet.AddState( AccessibleStateType::SELECTABLE );
+    //Add resizable state to table cell.
+    rStateSet.AddState( AccessibleStateType::RESIZABLE );
+
+    if (IsDisposing()) // tdf#135098
+        return;
+
+    // SELECTED
+    if( IsSelected() )
+    {
+        rStateSet.AddState( AccessibleStateType::SELECTED );
+        SAL_WARN_IF(!m_bIsSelected, "sw.a11y", "bSelected out of sync");
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+}
+
+SwAccessibleCell::SwAccessibleCell(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                                    const SwCellFrame *pCellFrame )
+    : SwAccessibleContext( pInitMap, AccessibleRole::TABLE_CELL, pCellFrame )
+    , m_aSelectionHelper( *this )
+    , m_bIsSelected( false )
+{
+    OUString sBoxName( pCellFrame->GetTabBox()->GetName() );
+    SetName( sBoxName );
+
+    m_bIsSelected = IsSelected();
+
+    css::uno::Reference<css::accessibility::XAccessible> xTableReference(
+        getAccessibleParentImpl());
+    css::uno::Reference<css::accessibility::XAccessibleContext> xContextTable(
+        xTableReference, css::uno::UNO_QUERY);
+    SAL_WARN_IF(
+        (!xContextTable.is()
+         || xContextTable->getAccessibleRole() != AccessibleRole::TABLE),
+        "sw.a11y", "bad accessible context");
+    m_pAccTable = static_cast<SwAccessibleTable *>(xTableReference.get());
+}
+
+bool SwAccessibleCell::InvalidateMyCursorPos()
+{
+    bool bNew = IsSelected();
+    bool bOld;
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bOld = m_bIsSelected;
+        m_bIsSelected = bNew;
+    }
+    if( bNew )
+    {
+        // remember that object as the one that has the caret. This is
+        // necessary to notify that object if the cursor leaves it.
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+
+    bool bChanged = bOld != bNew;
+    if( bChanged )
+    {
+        FireStateChangedEvent( AccessibleStateType::SELECTED, bNew );
+        if (m_pAccTable.is())
+        {
+            m_pAccTable->AddSelectionCell(this,bNew);
+        }
+    }
+    return bChanged;
+}
+
+bool SwAccessibleCell::InvalidateChildrenCursorPos( const SwFrame *pFrame )
+{
+    bool bChanged = false;
+
+    const SwAccessibleChildSList aVisList( GetVisArea(), *pFrame, *GetMap() );
+    SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+    while( aIter != aVisList.end() )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwFrame *pLower = rLower.GetSwFrame();
+        if( pLower )
+        {
+            if( rLower.IsAccessible( GetMap()->GetShell()->IsPreview() )  )
+            {
+                ::rtl::Reference< SwAccessibleContext > xAccImpl(
+                    GetMap()->GetContextImpl( pLower, false ) );
+                if( xAccImpl.is() )
+                {
+                    assert(xAccImpl->GetFrame()->IsCellFrame());
+                    bChanged = static_cast< SwAccessibleCell *>(
+                            xAccImpl.get() )->InvalidateMyCursorPos();
+                }
+                else
+                    bChanged = true; // If the context is not know we
+                                         // don't know whether the selection
+                                         // changed or not.
+            }
+            else
+            {
+                // This is a box with sub rows.
+                bChanged |= InvalidateChildrenCursorPos( pLower );
+            }
+        }
+        ++aIter;
+    }
+
+    return bChanged;
+}
+
+void SwAccessibleCell::InvalidateCursorPos_()
+{
+    if (IsSelected())
+    {
+        const SwAccessibleChild aChild( GetChild( *(GetMap()), 0 ) );
+        if( aChild.IsValid()  && aChild.GetSwFrame() )
+        {
+            ::rtl::Reference < SwAccessibleContext > xChildImpl( GetMap()->GetContextImpl( aChild.GetSwFrame())  );
+            if (xChildImpl.is())
+            {
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::STATE_CHANGED;
+                aEvent.NewValue <<= AccessibleStateType::FOCUSED;
+                xChildImpl->FireAccessibleEvent( aEvent );
+            }
+        }
+    }
+
+    const SwFrame *pParent = GetParent( SwAccessibleChild(GetFrame()), IsInPagePreview() );
+    assert(pParent->IsTabFrame());
+    const SwTabFrame *pTabFrame = static_cast< const SwTabFrame * >( pParent );
+    if( pTabFrame->IsFollow() )
+        pTabFrame = pTabFrame->FindMaster();
+
+    while( pTabFrame )
+    {
+        InvalidateChildrenCursorPos( pTabFrame );
+        pTabFrame = pTabFrame->GetFollow();
+    }
+    if (m_pAccTable.is())
+    {
+        m_pAccTable->FireSelectionEvent();
+    }
+}
+
+bool SwAccessibleCell::HasCursor()
+{
+    std::scoped_lock aGuard( m_Mutex );
+    return m_bIsSelected;
+}
+
+SwAccessibleCell::~SwAccessibleCell()
+{
+}
+
+OUString SAL_CALL SwAccessibleCell::getAccessibleDescription()
+{
+    return GetName();
+}
+
+OUString SAL_CALL SwAccessibleCell::getImplementationName()
+{
+    return sImplementationName;
+}
+
+sal_Bool SAL_CALL SwAccessibleCell::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL SwAccessibleCell::getSupportedServiceNames()
+{
+    return { "com.sun.star.table.AccessibleCellView", sAccessibleServiceName };
+}
+
+void SwAccessibleCell::Dispose(bool bRecursive, bool bCanSkipInvisible)
+{
+    const SwFrame *pParent = GetParent( SwAccessibleChild(GetFrame()), IsInPagePreview() );
+    ::rtl::Reference< SwAccessibleContext > xAccImpl(
+            GetMap()->GetContextImpl( pParent, false ) );
+    if( xAccImpl.is() )
+        xAccImpl->DisposeChild(SwAccessibleChild(GetFrame()), bRecursive, bCanSkipInvisible);
+    SwAccessibleContext::Dispose( bRecursive );
+}
+
+void SwAccessibleCell::InvalidatePosOrSize( const SwRect& rOldBox )
+{
+    const SwFrame *pParent = GetParent( SwAccessibleChild(GetFrame()), IsInPagePreview() );
+    ::rtl::Reference< SwAccessibleContext > xAccImpl(
+            GetMap()->GetContextImpl( pParent, false ) );
+    if( xAccImpl.is() )
+        xAccImpl->InvalidateChildPosOrSize( SwAccessibleChild(GetFrame()), rOldBox );
+    SwAccessibleContext::InvalidatePosOrSize( rOldBox );
+}
+
+// XAccessibleInterface
+
+uno::Any SwAccessibleCell::queryInterface( const uno::Type& rType )
+{
+    if (rType == cppu::UnoType<XAccessibleExtendedAttributes>::get())
+    {
+        uno::Any aR;
+        aR <<= uno::Reference<XAccessibleExtendedAttributes>(this);
+        return aR;
+    }
+
+    if (rType == cppu::UnoType<XAccessibleSelection>::get())
+    {
+        uno::Any aR;
+        aR <<= uno::Reference<XAccessibleSelection>(this);
+        return aR;
+    }
+    if ( rType == ::cppu::UnoType<XAccessibleValue>::get() )
+    {
+        uno::Reference<XAccessibleValue> xValue = this;
+        uno::Any aRet;
+        aRet <<= xValue;
+        return aRet;
+    }
+    else
+    {
+        return SwAccessibleContext::queryInterface( rType );
+    }
+}
+
+// XTypeProvider
+uno::Sequence< uno::Type > SAL_CALL SwAccessibleCell::getTypes()
+{
+    return cppu::OTypeCollection(
+        ::cppu::UnoType<XAccessibleValue>::get(),
+        SwAccessibleContext::getTypes() ).getTypes();
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleCell::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XAccessibleValue
+
+SwFrameFormat* SwAccessibleCell::GetTableBoxFormat() const
+{
+    assert(GetFrame());
+    assert(GetFrame()->IsCellFrame());
+
+    const SwCellFrame* pCellFrame = static_cast<const SwCellFrame*>( GetFrame() );
+    return pCellFrame->GetTabBox()->GetFrameFormat();
+}
+
+//Implement TableCell currentValue
+uno::Any SwAccessibleCell::getCurrentValue( )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return uno::Any( GetTableBoxFormat()->GetTableBoxValue().GetValue() );
+}
+
+sal_Bool SwAccessibleCell::setCurrentValue( const uno::Any& aNumber )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    double fValue = 0;
+    bool bValid = (aNumber >>= fValue);
+    if( bValid )
+    {
+        SwTableBoxValue aValue( fValue );
+        GetTableBoxFormat()->SetFormatAttr( aValue );
+    }
+    return bValid;
+}
+
+uno::Any SwAccessibleCell::getMaximumValue( )
+{
+    return uno::Any(DBL_MAX);
+}
+
+uno::Any SwAccessibleCell::getMinimumValue(  )
+{
+    return uno::Any(-DBL_MAX);
+}
+
+uno::Any SwAccessibleCell::getMinimumIncrement(  )
+{
+    return uno::Any();
+}
+
+static OUString ReplaceOneChar(const OUString& oldOUString, std::u16string_view replacedChar, std::u16string_view replaceStr)
+{
+    int iReplace = oldOUString.lastIndexOf(replacedChar);
+    OUString aRet = oldOUString;
+    while(iReplace > -1)
+    {
+        aRet = aRet.replaceAt(iReplace,1, replaceStr);
+        iReplace = aRet.lastIndexOf(replacedChar,iReplace);
+    }
+    return aRet;
+}
+
+static OUString ReplaceFourChar(const OUString& oldOUString)
+{
+    OUString aRet = ReplaceOneChar(oldOUString, u"\\", u"\\\\");
+    aRet = ReplaceOneChar(aRet, u";", u"\\;");
+    aRet = ReplaceOneChar(aRet, u"=", u"\\=");
+    aRet = ReplaceOneChar(aRet, u",", u"\\,");
+    aRet = ReplaceOneChar(aRet, u":", u"\\:");
+    return aRet;
+}
+
+css::uno::Any SAL_CALL SwAccessibleCell::getExtendedAttributes()
+{
+    SolarMutexGuard g;
+
+    css::uno::Any strRet;
+    SwFrameFormat *pFrameFormat = GetTableBoxFormat();
+    assert(pFrameFormat);
+
+    const SwTableBoxFormula& tbl_formula = pFrameFormat->GetTableBoxFormula();
+
+    OUString strFormula = ReplaceFourChar(tbl_formula.GetFormula());
+    OUString strFor = "Formula:" + strFormula + ";";
+    strRet <<= strFor;
+
+    return strRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleCell::getBackground()
+{
+    SolarMutexGuard g;
+
+    const SvxBrushItem &rBack = GetFrame()->GetAttrSet()->GetBackground();
+    Color crBack = rBack.GetColor();
+
+    if (COL_AUTO == crBack)
+    {
+        uno::Reference<XAccessible> xAccDoc = getAccessibleParent();
+        if (xAccDoc.is())
+        {
+            uno::Reference<XAccessibleComponent> xComponentDoc(xAccDoc, uno::UNO_QUERY);
+            if (xComponentDoc.is())
+            {
+                crBack = Color(ColorTransparency, xComponentDoc->getBackground());
+            }
+        }
+    }
+    return sal_Int32(crBack);
+}
+
+// XAccessibleSelection
+void SwAccessibleCell::selectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    m_aSelectionHelper.selectAccessibleChild(nChildIndex);
+}
+
+sal_Bool SwAccessibleCell::isAccessibleChildSelected(
+    sal_Int32 nChildIndex )
+{
+    return m_aSelectionHelper.isAccessibleChildSelected(nChildIndex);
+}
+
+void SwAccessibleCell::clearAccessibleSelection(  )
+{
+}
+
+void SwAccessibleCell::selectAllAccessibleChildren(  )
+{
+    m_aSelectionHelper.selectAllAccessibleChildren();
+}
+
+sal_Int32 SwAccessibleCell::getSelectedAccessibleChildCount(  )
+{
+    return m_aSelectionHelper.getSelectedAccessibleChildCount();
+}
+
+uno::Reference<XAccessible> SwAccessibleCell::getSelectedAccessibleChild(
+    sal_Int32 nSelectedChildIndex )
+{
+    return m_aSelectionHelper.getSelectedAccessibleChild(nSelectedChildIndex);
+}
+
+void SwAccessibleCell::deselectAccessibleChild(
+    sal_Int32 nSelectedChildIndex )
+{
+    m_aSelectionHelper.deselectAccessibleChild(nSelectedChildIndex);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acccell.hxx b/sw/source/core/access/acccell.hxx
new file mode 100644
index 000000000..b000d4958
--- /dev/null
+++ b/sw/source/core/access/acccell.hxx
@@ -0,0 +1,133 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include "acccontext.hxx"
+#include <com/sun/star/accessibility/XAccessibleValue.hpp>
+#include "accselectionhelper.hxx"
+
+class SwCellFrame;
+class SwAccessibleTable;
+class SwFrameFormat;
+
+class SwAccessibleCell : public SwAccessibleContext,
+                  public css::accessibility::XAccessibleValue,
+                  public css::accessibility::XAccessibleSelection,
+                  public  css::accessibility::XAccessibleExtendedAttributes
+{
+    // Implementation for XAccessibleSelection interface
+    SwAccessibleSelectionHelper m_aSelectionHelper;
+    bool    m_bIsSelected;    // protected by base class mutex
+
+    bool    IsSelected();
+
+    bool InvalidateMyCursorPos();
+    bool InvalidateChildrenCursorPos( const SwFrame *pFrame );
+
+    rtl::Reference<SwAccessibleTable> m_pAccTable;
+
+protected:
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets SELECTABLE(1) and SELECTED(+)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    virtual void InvalidateCursorPos_() override;
+
+    virtual ~SwAccessibleCell() override;
+
+public:
+    SwAccessibleCell(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                     const SwCellFrame *pCellFrame);
+
+    virtual bool HasCursor() override;   // required by map to remember that object
+
+    // XAccessibleContext
+
+    /// Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    // XServiceInfo
+
+    // Returns an identifier for the implementation of this object.
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    // Return whether the specified service is supported by this class.
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    // Returns a list of all supported services.  In this case that is just
+    // the AccessibleContext service.
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true) override;
+
+    virtual void InvalidatePosOrSize( const SwRect& rFrame ) override;
+
+    // XInterface
+
+    // (XInterface methods need to be implemented to disambiguate
+    // between those inherited through SwAccessibleContext and
+    // XAccessibleValue).
+
+    virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) override;
+
+    virtual void SAL_CALL acquire(  ) noexcept override
+        { SwAccessibleContext::acquire(); };
+
+    virtual void SAL_CALL release(  ) noexcept override
+        { SwAccessibleContext::release(); };
+
+    // XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleExtendedAttributes
+    css::uno::Any SAL_CALL getExtendedAttributes() override ;
+private:
+    SwFrameFormat* GetTableBoxFormat() const;
+
+public:
+    // XAccessibleValue
+    virtual css::uno::Any SAL_CALL getCurrentValue( ) override;
+    virtual sal_Bool SAL_CALL setCurrentValue( const css::uno::Any& aNumber ) override;
+    virtual css::uno::Any SAL_CALL getMaximumValue(  ) override;
+    virtual css::uno::Any SAL_CALL getMinimumValue(  ) override;
+    virtual css::uno::Any SAL_CALL getMinimumIncrement(  ) override;
+
+    // XAccessibleComponent
+    sal_Int32 SAL_CALL getBackground() override;
+
+    // XAccessibleSelection
+    virtual void SAL_CALL selectAccessibleChild( sal_Int32 nChildIndex ) override;
+
+    virtual sal_Bool SAL_CALL isAccessibleChildSelected( sal_Int32 nChildIndex ) override;
+    virtual void SAL_CALL clearAccessibleSelection(  ) override;
+    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    virtual void SAL_CALL deselectAccessibleChild( sal_Int32 nSelectedChildIndex ) override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acccontext.cxx b/sw/source/core/access/acccontext.cxx
new file mode 100644
index 000000000..601e05a98
--- /dev/null
+++ b/sw/source/core/access/acccontext.cxx
@@ -0,0 +1,1519 @@
+/* -*- 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 <vcl/window.hxx>
+#include <swtypes.hxx>
+
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#include <com/sun/star/accessibility/XAccessibleStateSet.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <sal/log.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <viewsh.hxx>
+#include <crsrsh.hxx>
+#include <fesh.hxx>
+#include <wrtsh.hxx>
+#include <txtfrm.hxx>
+#include <ndtxt.hxx>
+#include <pagefrm.hxx>
+#include <flyfrm.hxx>
+#include <dflyobj.hxx>
+#include <pam.hxx>
+#include <accmap.hxx>
+#include "accfrmobjslist.hxx"
+#include "acccontext.hxx"
+#include <svx/AccessibleShape.hxx>
+#include <comphelper/accessibleeventnotifier.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <PostItMgr.hxx>
+
+using namespace sw::access;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+void SwAccessibleContext::InitStates()
+{
+    m_isShowingState = GetMap() && IsShowing( *(GetMap()) );
+
+    SwViewShell *pVSh = GetMap()->GetShell();
+    m_isEditableState = pVSh && IsEditable( pVSh );
+    m_isOpaqueState = pVSh && IsOpaque( pVSh );
+    m_isDefuncState = false;
+}
+
+void SwAccessibleContext::SetParent( SwAccessibleContext *pParent )
+{
+    std::scoped_lock aGuard( m_Mutex );
+
+    uno::Reference < XAccessible > xParent( pParent );
+    m_xWeakParent = xParent;
+}
+
+uno::Reference< XAccessible > SwAccessibleContext::GetWeakParent() const
+{
+    std::scoped_lock aGuard( m_Mutex );
+
+    uno::Reference< XAccessible > xParent( m_xWeakParent );
+    return xParent;
+}
+
+vcl::Window *SwAccessibleContext::GetWindow()
+{
+    vcl::Window *pWin = nullptr;
+
+    if( GetMap() )
+    {
+        const SwViewShell *pVSh = GetMap()->GetShell();
+        OSL_ENSURE( pVSh, "no view shell" );
+        if( pVSh )
+            pWin = pVSh->GetWin();
+
+        OSL_ENSURE( pWin, "no window" );
+    }
+
+    return pWin;
+}
+
+// get SwViewShell from accessibility map, and cast to cursor shell
+SwCursorShell* SwAccessibleContext::GetCursorShell()
+{
+    SwViewShell* pViewShell = GetMap() ? GetMap()->GetShell() : nullptr;
+    OSL_ENSURE( pViewShell, "no view shell" );
+    return dynamic_cast<SwCursorShell*>( pViewShell);
+}
+
+const SwCursorShell* SwAccessibleContext::GetCursorShell() const
+{
+    // just like non-const GetCursorShell
+    const SwViewShell* pViewShell = GetMap() ? GetMap()->GetShell() : nullptr;
+    OSL_ENSURE( pViewShell, "no view shell" );
+    return dynamic_cast<const SwCursorShell*>( pViewShell);
+}
+
+namespace {
+
+enum class Action { NONE, SCROLLED, SCROLLED_WITHIN,
+                          SCROLLED_IN, SCROLLED_OUT };
+
+}
+
+void SwAccessibleContext::ChildrenScrolled( const SwFrame *pFrame,
+                                            const SwRect& rOldVisArea )
+{
+    const SwRect& rNewVisArea = GetVisArea();
+    const bool bVisibleChildrenOnly = SwAccessibleChild( pFrame ).IsVisibleChildrenOnly();
+
+    const SwAccessibleChildSList aList( *pFrame, *(GetMap()) );
+    SwAccessibleChildSList::const_iterator aIter( aList.begin() );
+    while( aIter != aList.end() )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwRect aBox( rLower.GetBox( *(GetMap()) ) );
+        if( rLower.IsAccessible( GetShell()->IsPreview() ) )
+        {
+            Action eAction = Action::NONE;
+            if( aBox.Overlaps( rNewVisArea ) )
+            {
+                if( aBox.Overlaps( rOldVisArea ) )
+                {
+                    eAction = Action::SCROLLED_WITHIN;
+                }
+                else
+                {
+                    if ( bVisibleChildrenOnly &&
+                         !rLower.AlwaysIncludeAsChild() )
+                    {
+                        eAction = Action::SCROLLED_IN;
+                    }
+                    else
+                    {
+                        eAction = Action::SCROLLED;
+                    }
+                }
+            }
+            else if( aBox.Overlaps( rOldVisArea ) )
+            {
+                if ( bVisibleChildrenOnly &&
+                     !rLower.AlwaysIncludeAsChild() )
+                {
+                    eAction = Action::SCROLLED_OUT;
+                }
+                else
+                {
+                    eAction = Action::SCROLLED;
+                }
+            }
+            else if( !bVisibleChildrenOnly ||
+                     rLower.AlwaysIncludeAsChild() )
+            {
+                // This wouldn't be required if the SwAccessibleFrame,
+                // wouldn't know about the visible area.
+                eAction = Action::SCROLLED;
+            }
+            if( Action::NONE != eAction )
+            {
+                if ( rLower.GetSwFrame() )
+                {
+                    OSL_ENSURE( !rLower.AlwaysIncludeAsChild(),
+                            "<SwAccessibleContext::ChildrenScrolled(..)> - always included child not considered!" );
+                    const SwFrame* pLower( rLower.GetSwFrame() );
+                    ::rtl::Reference< SwAccessibleContext > xAccImpl =
+                        GetMap()->GetContextImpl( pLower );
+                    if( xAccImpl.is() )
+                    {
+                        switch( eAction )
+                        {
+                        case Action::SCROLLED:
+                            xAccImpl->Scrolled( rOldVisArea );
+                            break;
+                        case Action::SCROLLED_WITHIN:
+                            xAccImpl->ScrolledWithin( rOldVisArea );
+                            break;
+                        case Action::SCROLLED_IN:
+                            xAccImpl->ScrolledIn();
+                            break;
+                        case Action::SCROLLED_OUT:
+                            xAccImpl->ScrolledOut( rOldVisArea );
+                            break;
+                        case Action::NONE:
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        ChildrenScrolled( pLower, rOldVisArea );
+                    }
+                }
+                else if ( rLower.GetDrawObject() )
+                {
+                    OSL_ENSURE( !rLower.AlwaysIncludeAsChild(),
+                            "<SwAccessibleContext::ChildrenScrolled(..)> - always included child not considered!" );
+                    ::rtl::Reference< ::accessibility::AccessibleShape > xAccImpl =
+                        GetMap()->GetContextImpl( rLower.GetDrawObject(),
+                                                  this );
+                    if( xAccImpl.is() )
+                    {
+                        switch( eAction )
+                        {
+                        case Action::SCROLLED:
+                        case Action::SCROLLED_WITHIN:
+                            xAccImpl->ViewForwarderChanged();
+                            break;
+                        case Action::SCROLLED_IN:
+                            ScrolledInShape( xAccImpl.get() );
+                            break;
+                        case Action::SCROLLED_OUT:
+                            {
+                                xAccImpl->ViewForwarderChanged();
+                                // this DisposeShape call was removed by
+                                // IAccessibility2 implementation
+                                // without giving any reason why
+                                DisposeShape( rLower.GetDrawObject(),
+                                          xAccImpl.get() );
+                            }
+                            break;
+                        // coverity[dead_error_begin] - following conditions exist to avoid compiler warning
+                        case Action::NONE:
+                            break;
+                        }
+                    }
+                }
+                else if ( rLower.GetWindow() )
+                {
+                    // nothing to do - as such children are always included as children.
+                    OSL_ENSURE( rLower.AlwaysIncludeAsChild(),
+                            "<SwAccessibleContext::ChildrenScrolled(..)> - not always included child not considered!" );
+                }
+            }
+        }
+        else if ( rLower.GetSwFrame() &&
+                  ( !bVisibleChildrenOnly ||
+                    aBox.Overlaps( rOldVisArea ) ||
+                    aBox.Overlaps( rNewVisArea ) ) )
+        {
+            // There are no unaccessible SdrObjects that need to be notified
+            ChildrenScrolled( rLower.GetSwFrame(), rOldVisArea );
+        }
+        ++aIter;
+    }
+}
+
+void SwAccessibleContext::Scrolled( const SwRect& rOldVisArea )
+{
+    SetVisArea( GetMap()->GetVisArea() );
+
+    ChildrenScrolled( GetFrame(), rOldVisArea );
+
+    bool bIsOldShowingState;
+    bool bIsNewShowingState = IsShowing( *(GetMap()) );
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bIsOldShowingState = m_isShowingState;
+        m_isShowingState = bIsNewShowingState;
+    }
+
+    if( bIsOldShowingState != bIsNewShowingState )
+        FireStateChangedEvent( AccessibleStateType::SHOWING,
+                               bIsNewShowingState  );
+}
+
+void SwAccessibleContext::ScrolledWithin( const SwRect& rOldVisArea )
+{
+    SetVisArea( GetMap()->GetVisArea() );
+
+    ChildrenScrolled( GetFrame(), rOldVisArea );
+
+    FireVisibleDataEvent();
+}
+
+void SwAccessibleContext::ScrolledIn()
+{
+    // This accessible should be freshly created, because it
+    // was not visible before. Therefore, its visible area must already
+    // reflect the scrolling.
+    OSL_ENSURE( GetVisArea() == GetMap()->GetVisArea(),
+            "Visible area of child is wrong. Did it exist already?" );
+
+    // Send child event at parent. That's all we have to do here.
+    const SwFrame* pParent = GetParent();
+    ::rtl::Reference< SwAccessibleContext > xParentImpl(
+         GetMap()->GetContextImpl( pParent, false ) );
+    uno::Reference < XAccessibleContext > xThis( this );
+    if( !xParentImpl.is() )
+        return;
+
+    SetParent( xParentImpl.get() );
+
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::CHILD;
+    aEvent.NewValue <<= xThis;
+
+    xParentImpl->FireAccessibleEvent( aEvent );
+
+    if( HasCursor() )
+    {
+        vcl::Window *pWin = GetWindow();
+        if( pWin && pWin->HasFocus() )
+        {
+            FireStateChangedEvent( AccessibleStateType::FOCUSED, true );
+        }
+    }
+}
+
+void SwAccessibleContext::ScrolledOut( const SwRect& rOldVisArea )
+{
+    SetVisArea( GetMap()->GetVisArea() );
+
+    // First of all, update the children. That's required to dispose
+    // all children that are existing only if they are visible. They
+    // are not disposed by the recursive Dispose call that follows later on,
+    // because this call will only dispose children that are in the
+    // new visible area. The children we want to dispose however are in the
+    // old visible area all.
+    ChildrenScrolled( GetFrame(), rOldVisArea );
+
+    // Broadcast a state changed event for the showing state.
+    // It might be that the child is freshly created just to send
+    // the child event. In this case no listener will exist.
+    FireStateChangedEvent( AccessibleStateType::SHOWING, false );
+
+    // this Dispose call was removed by IAccessibility2 implementation
+    // without giving any reason why - without it we get stale
+    // entries in SwAccessibleMap::mpFrameMap.
+    Dispose(true);
+}
+
+// #i27301# - use new type definition for <_nStates>
+void SwAccessibleContext::InvalidateChildrenStates( const SwFrame* _pFrame,
+                                                    AccessibleStates _nStates )
+{
+    const SwAccessibleChildSList aVisList( GetVisArea(), *_pFrame, *(GetMap()) );
+
+    SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+    while( aIter != aVisList.end() )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwFrame* pLower = rLower.GetSwFrame();
+        if( pLower )
+        {
+            ::rtl::Reference< SwAccessibleContext > xAccImpl;
+            if( rLower.IsAccessible( GetShell()->IsPreview() ) )
+                xAccImpl = GetMap()->GetContextImpl( pLower, false );
+            if( xAccImpl.is() )
+                xAccImpl->InvalidateStates( _nStates );
+            else
+                InvalidateChildrenStates( pLower, _nStates );
+        }
+        else if ( rLower.GetDrawObject() )
+        {
+            // TODO: SdrObjects
+        }
+        else if ( rLower.GetWindow() )
+        {
+            // nothing to do ?
+        }
+
+        ++aIter;
+    }
+}
+
+void SwAccessibleContext::DisposeChildren(const SwFrame *pFrame,
+                                          bool bRecursive,
+                                          bool bCanSkipInvisible)
+{
+    const SwAccessibleChildSList aVisList( GetVisArea(), *pFrame, *(GetMap()) );
+    SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+    while( aIter != aVisList.end() )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwFrame* pLower = rLower.GetSwFrame();
+        if( pLower )
+        {
+            // tdf#117601 dispose the darn thing if it ever was accessible
+            ::rtl::Reference<SwAccessibleContext> xAccImpl = GetMap()->GetContextImpl(pLower, false);
+            if( xAccImpl.is() )
+                xAccImpl->Dispose( bRecursive );
+            else
+            {
+                // it's possible that the xAccImpl *does* exist with a
+                // ref-count of 0 and blocked in its dtor in another thread -
+                // this call here could be from SwAccessibleMap dtor so
+                // remove it from any maps now!
+                GetMap()->RemoveContext(pLower);
+                // in this case the context will check with a weak_ptr
+                // that the map is still alive so it's not necessary
+                // to clear its m_pMap here.
+                if (bRecursive)
+                {
+                    DisposeChildren(pLower, bRecursive, bCanSkipInvisible);
+                }
+            }
+        }
+        else if ( rLower.GetDrawObject() )
+        {
+            ::rtl::Reference< ::accessibility::AccessibleShape > xAccImpl(
+                    GetMap()->GetContextImpl( rLower.GetDrawObject(),
+                                          this, false )  );
+            if( xAccImpl.is() )
+                DisposeShape( rLower.GetDrawObject(), xAccImpl.get() );
+        }
+        else if ( rLower.GetWindow() )
+        {
+            DisposeChild(rLower, false, bCanSkipInvisible);
+        }
+        ++aIter;
+    }
+}
+
+void SwAccessibleContext::InvalidateContent_( bool )
+{
+}
+
+void SwAccessibleContext::InvalidateCursorPos_()
+{
+}
+
+void SwAccessibleContext::InvalidateFocus_()
+{
+}
+
+void SwAccessibleContext::FireAccessibleEvent( AccessibleEventObject& rEvent )
+{
+    OSL_ENSURE( GetFrame(), "fire event for disposed frame?" );
+    if( !GetFrame() )
+        return;
+
+    if( !rEvent.Source.is() )
+    {
+        uno::Reference < XAccessibleContext > xThis( this );
+        rEvent.Source = xThis;
+    }
+
+    if (m_nClientId)
+        comphelper::AccessibleEventNotifier::addEvent( m_nClientId, rEvent );
+}
+
+void SwAccessibleContext::FireVisibleDataEvent()
+{
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::VISIBLE_DATA_CHANGED;
+
+    FireAccessibleEvent( aEvent );
+}
+
+void SwAccessibleContext::FireStateChangedEvent( sal_Int16 nState,
+                                                 bool bNewState )
+{
+    AccessibleEventObject aEvent;
+
+    aEvent.EventId = AccessibleEventId::STATE_CHANGED;
+    if( bNewState )
+        aEvent.NewValue <<= nState;
+    else
+        aEvent.OldValue <<= nState;
+
+    FireAccessibleEvent( aEvent );
+}
+
+void SwAccessibleContext::GetStates(
+        ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SolarMutexGuard aGuard;
+
+    // SHOWING
+    if (m_isShowingState)
+        rStateSet.AddState( AccessibleStateType::SHOWING );
+
+    // EDITABLE
+    if (m_isEditableState)
+    //Set editable state to graphic and other object when the document is editable
+    {
+        rStateSet.AddState( AccessibleStateType::EDITABLE );
+        rStateSet.AddState( AccessibleStateType::RESIZABLE );
+        rStateSet.AddState( AccessibleStateType::MOVEABLE );
+    }
+    // ENABLED
+    rStateSet.AddState( AccessibleStateType::ENABLED );
+
+    // OPAQUE
+    if (m_isOpaqueState)
+        rStateSet.AddState( AccessibleStateType::OPAQUE );
+
+    // VISIBLE
+    rStateSet.AddState( AccessibleStateType::VISIBLE );
+
+    if (m_isDefuncState)
+        rStateSet.AddState( AccessibleStateType::DEFUNC );
+}
+
+bool SwAccessibleContext::IsEditableState()
+{
+    bool bRet;
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bRet = m_isEditableState;
+    }
+
+    return bRet;
+}
+
+void SwAccessibleContext::ThrowIfDisposed()
+{
+    if (!(GetFrame() && GetMap()))
+    {
+        throw lang::DisposedException("object is nonfunctional",
+                static_cast<cppu::OWeakObject*>(this));
+    }
+}
+
+SwAccessibleContext::SwAccessibleContext(std::shared_ptr<SwAccessibleMap> const& pMap,
+                                          sal_Int16 const nRole,
+                                          const SwFrame *pF )
+    : SwAccessibleFrame( pMap->GetVisArea(), pF,
+                         pMap->GetShell()->IsPreview() )
+    , m_pMap(pMap.get())
+    , m_wMap(pMap)
+    , m_nClientId(0)
+    , m_nRole(nRole)
+    , m_isDisposing( false )
+    , m_isRegisteredAtAccessibleMap( true )
+    , m_isSelectedInDoc(false)
+{
+    InitStates();
+}
+
+SwAccessibleContext::~SwAccessibleContext()
+{
+    // must have for 2 reasons: 2. as long as this thread has SolarMutex
+    // another thread cannot destroy the SwAccessibleMap so our temporary
+    // taking a hard ref to SwAccessibleMap won't delay its destruction
+    SolarMutexGuard aGuard;
+    // must check with weak_ptr that m_pMap is still alive
+    std::shared_ptr<SwAccessibleMap> pMap(m_wMap.lock());
+    if (m_isRegisteredAtAccessibleMap && GetFrame() && pMap)
+    {
+        pMap->RemoveContext( GetFrame() );
+    }
+}
+
+uno::Reference< XAccessibleContext > SAL_CALL
+    SwAccessibleContext::getAccessibleContext()
+{
+    uno::Reference < XAccessibleContext > xRet( this );
+    return xRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleContext::getAccessibleChildCount()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return m_isDisposing ? 0 : GetChildCount( *(GetMap()) );
+}
+
+uno::Reference< XAccessible> SAL_CALL
+    SwAccessibleContext::getAccessibleChild( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwAccessibleChild aChild( GetChild( *(GetMap()), nIndex ) );
+    if( !aChild.IsValid() )
+    {
+        uno::Reference < XAccessibleContext > xThis( this );
+        lang::IndexOutOfBoundsException aExcept(
+                "index out of bounds",
+                xThis );
+        throw aExcept;
+    }
+
+    uno::Reference< XAccessible > xChild;
+    if( aChild.GetSwFrame() )
+    {
+        ::rtl::Reference < SwAccessibleContext > xChildImpl(
+                GetMap()->GetContextImpl( aChild.GetSwFrame(), !m_isDisposing )  );
+        if( xChildImpl.is() )
+        {
+            xChildImpl->SetParent( this );
+            xChild = xChildImpl.get();
+        }
+    }
+    else if ( aChild.GetDrawObject() )
+    {
+        ::rtl::Reference < ::accessibility::AccessibleShape > xChildImpl(
+                GetMap()->GetContextImpl( aChild.GetDrawObject(),
+                                          this, !m_isDisposing) );
+        if( xChildImpl.is() )
+            xChild = xChildImpl.get();
+    }
+    else if ( aChild.GetWindow() )
+    {
+        xChild = aChild.GetWindow()->GetAccessible();
+    }
+
+    return xChild;
+}
+
+css::uno::Sequence<uno::Reference<XAccessible>> SAL_CALL
+    SwAccessibleContext::getAccessibleChildren()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    std::list< sw::access::SwAccessibleChild > aChildren;
+    GetChildren( *GetMap(), aChildren );
+
+    std::vector<uno::Reference<XAccessible>> aRet;
+    aRet.reserve(aChildren.size());
+    for (const auto & rSwChild : aChildren)
+    {
+        uno::Reference< XAccessible > xChild;
+        if( rSwChild.GetSwFrame() )
+        {
+            ::rtl::Reference < SwAccessibleContext > xChildImpl(
+                    GetMap()->GetContextImpl( rSwChild.GetSwFrame(), !m_isDisposing )  );
+            if( xChildImpl.is() )
+            {
+                xChildImpl->SetParent( this );
+                xChild = xChildImpl.get();
+            }
+        }
+        else if ( rSwChild.GetDrawObject() )
+        {
+            ::rtl::Reference < ::accessibility::AccessibleShape > xChildImpl(
+                    GetMap()->GetContextImpl( rSwChild.GetDrawObject(),
+                                              this, !m_isDisposing) );
+            if( xChildImpl.is() )
+                xChild = xChildImpl.get();
+        }
+        else if ( rSwChild.GetWindow() )
+        {
+            xChild = rSwChild.GetWindow()->GetAccessible();
+        }
+        aRet.push_back(xChild);
+    }
+    return comphelper::containerToSequence(aRet);
+}
+
+uno::Reference< XAccessible> SwAccessibleContext::getAccessibleParentImpl()
+{
+    SolarMutexGuard aGuard;
+
+    const SwFrame *pUpper = GetParent();
+    OSL_ENSURE( pUpper != nullptr || m_isDisposing, "no upper found" );
+
+    uno::Reference< XAccessible > xAcc;
+    if( pUpper )
+        xAcc = GetMap()->GetContext( pUpper, !m_isDisposing );
+
+    OSL_ENSURE( xAcc.is() || m_isDisposing, "no parent found" );
+
+    // Remember the parent as weak ref.
+    {
+        std::scoped_lock aWeakParentGuard( m_Mutex );
+        m_xWeakParent = xAcc;
+    }
+
+    return xAcc;
+}
+
+uno::Reference< XAccessible> SAL_CALL SwAccessibleContext::getAccessibleParent()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return getAccessibleParentImpl();
+}
+
+sal_Int32 SAL_CALL SwAccessibleContext::getAccessibleIndexInParent()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwFrame *pUpper = GetParent();
+    OSL_ENSURE( pUpper != nullptr || m_isDisposing, "no upper found" );
+
+    sal_Int32 nIndex = -1;
+    if( pUpper )
+    {
+        ::rtl::Reference < SwAccessibleContext > xAccImpl(
+            GetMap()->GetContextImpl(pUpper, !m_isDisposing) );
+        OSL_ENSURE( xAccImpl.is() || m_isDisposing, "no parent found" );
+        if( xAccImpl.is() )
+            nIndex = xAccImpl->GetChildIndex( *(GetMap()), SwAccessibleChild(GetFrame()) );
+    }
+
+    return nIndex;
+}
+
+sal_Int16 SAL_CALL SwAccessibleContext::getAccessibleRole()
+{
+    return m_nRole;
+}
+
+OUString SAL_CALL SwAccessibleContext::getAccessibleName()
+{
+    return m_sName;
+}
+
+uno::Reference< XAccessibleRelationSet> SAL_CALL
+    SwAccessibleContext::getAccessibleRelationSet()
+{
+    // by default there are no relations
+    uno::Reference< XAccessibleRelationSet> xRet( new utl::AccessibleRelationSetHelper() );
+    return xRet;
+}
+
+uno::Reference<XAccessibleStateSet> SAL_CALL
+    SwAccessibleContext::getAccessibleStateSet()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    rtl::Reference<::utl::AccessibleStateSetHelper> pStateSet =
+        new ::utl::AccessibleStateSetHelper;
+
+    if (m_isSelectedInDoc)
+        pStateSet->AddState( AccessibleStateType::SELECTED );
+
+    GetStates( *pStateSet );
+
+    return pStateSet;
+}
+
+lang::Locale SAL_CALL SwAccessibleContext::getLocale()
+{
+    SolarMutexGuard aGuard;
+
+    lang::Locale aLoc( Application::GetSettings().GetLanguageTag().getLocale() );
+    return aLoc;
+}
+
+void SAL_CALL SwAccessibleContext::addAccessibleEventListener(
+            const uno::Reference< XAccessibleEventListener >& xListener )
+{
+    if (xListener.is())
+    {
+        SolarMutexGuard aGuard;
+        if (!m_nClientId)
+            m_nClientId = comphelper::AccessibleEventNotifier::registerClient( );
+        comphelper::AccessibleEventNotifier::addEventListener( m_nClientId, xListener );
+    }
+}
+
+void SAL_CALL SwAccessibleContext::removeAccessibleEventListener(
+            const uno::Reference< XAccessibleEventListener >& xListener )
+{
+    if (!(xListener.is() && m_nClientId))
+        return;
+
+    SolarMutexGuard aGuard;
+    sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( m_nClientId, xListener );
+    if ( !nListenerCount )
+    {
+        // no listeners anymore
+        // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
+        // and at least to us not firing any events anymore, in case somebody calls
+        // NotifyAccessibleEvent, again
+        comphelper::AccessibleEventNotifier::revokeClient( m_nClientId );
+        m_nClientId = 0;
+    }
+}
+
+static bool lcl_PointInRectangle(const awt::Point & aPoint,
+                                     const awt::Rectangle & aRect)
+{
+    tools::Long nDiffX = aPoint.X - aRect.X;
+    tools::Long nDiffY = aPoint.Y - aRect.Y;
+
+    return
+        nDiffX >= 0 && nDiffX < aRect.Width && nDiffY >= 0 &&
+        nDiffY < aRect.Height;
+
+}
+
+sal_Bool SAL_CALL SwAccessibleContext::containsPoint(
+            const awt::Point& aPoint )
+{
+    awt::Rectangle aPixBounds = getBoundsImpl(true);
+    aPixBounds.X = 0;
+    aPixBounds.Y = 0;
+
+    return lcl_PointInRectangle(aPoint, aPixBounds);
+}
+
+uno::Reference< XAccessible > SAL_CALL SwAccessibleContext::getAccessibleAtPoint(
+                const awt::Point& aPoint )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    uno::Reference< XAccessible > xAcc;
+
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    Point aPixPoint( aPoint.X, aPoint.Y ); // px rel to parent
+    if( !GetFrame()->IsRootFrame() )
+    {
+        SwRect aLogBounds( GetBounds( *(GetMap()), GetFrame() ) ); // twip rel to doc root
+        Point aPixPos( GetMap()->CoreToPixel( aLogBounds ).TopLeft() );
+        aPixPoint.setX(aPixPoint.getX() + aPixPos.getX());
+        aPixPoint.setY(aPixPoint.getY() + aPixPos.getY());
+    }
+
+    const SwAccessibleChild aChild( GetChildAtPixel( aPixPoint, *(GetMap()) ) );
+    if( aChild.GetSwFrame() )
+    {
+        xAcc = GetMap()->GetContext( aChild.GetSwFrame() );
+    }
+    else if( aChild.GetDrawObject() )
+    {
+        xAcc = GetMap()->GetContext( aChild.GetDrawObject(), this );
+    }
+    else if ( aChild.GetWindow() )
+    {
+        xAcc = aChild.GetWindow()->GetAccessible();
+    }
+
+    return xAcc;
+}
+
+/**
+   Get bounding box.
+
+   There are two modes.
+
+   - relative
+
+     Return bounding box relative to parent if parent is no root
+     frame. Otherwise return the absolute bounding box.
+
+   - absolute
+
+     Return the absolute bounding box.
+
+   @param bRelative
+   true: Use relative mode.
+   false: Use absolute mode.
+*/
+awt::Rectangle SwAccessibleContext::getBoundsImpl(bool bRelative)
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwFrame *pParent = GetParent();
+    OSL_ENSURE( pParent, "no Parent found" );
+    vcl::Window *pWin = GetWindow();
+
+    if (!pParent)
+    {
+        throw uno::RuntimeException("no Parent", static_cast<cppu::OWeakObject*>(this));
+    }
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    SwRect aLogBounds( GetBounds( *(GetMap()), GetFrame() ) ); // twip relative to document root
+    tools::Rectangle aPixBounds( 0, 0, 0, 0 );
+    if( GetFrame()->IsPageFrame() &&
+        static_cast < const SwPageFrame * >( GetFrame() )->IsEmptyPage() )
+    {
+        OSL_ENSURE( GetShell()->IsPreview(), "empty page accessible?" );
+        if( GetShell()->IsPreview() )
+        {
+            // adjust method call <GetMap()->GetPreviewPageSize()>
+            sal_uInt16 nPageNum =
+                static_cast < const SwPageFrame * >( GetFrame() )->GetPhyPageNum();
+            aLogBounds.SSize( GetMap()->GetPreviewPageSize( nPageNum ) );
+        }
+    }
+    if( !aLogBounds.IsEmpty() )
+    {
+        aPixBounds = GetMap()->CoreToPixel( aLogBounds );
+        if( !pParent->IsRootFrame() && bRelative)
+        {
+            SwRect aParentLogBounds( GetBounds( *(GetMap()), pParent ) ); // twip rel to doc root
+            Point aParentPixPos( GetMap()->CoreToPixel( aParentLogBounds ).TopLeft() );
+            aPixBounds.Move( -aParentPixPos.getX(), -aParentPixPos.getY() );
+        }
+    }
+
+    awt::Rectangle aBox( aPixBounds.Left(), aPixBounds.Top(),
+                         aPixBounds.GetWidth(), aPixBounds.GetHeight() );
+
+    return aBox;
+}
+
+awt::Rectangle SAL_CALL SwAccessibleContext::getBounds()
+{
+    return getBoundsImpl(true);
+}
+
+awt::Point SAL_CALL SwAccessibleContext::getLocation()
+{
+    awt::Rectangle aRect = getBoundsImpl(true);
+    awt::Point aPoint(aRect.X, aRect.Y);
+
+    return aPoint;
+}
+
+awt::Point SAL_CALL SwAccessibleContext::getLocationOnScreen()
+{
+    awt::Rectangle aRect = getBoundsImpl(false);
+
+    Point aPixPos(aRect.X, aRect.Y);
+
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    aPixPos = pWin->OutputToAbsoluteScreenPixel(aPixPos);
+    awt::Point aPoint(aPixPos.getX(), aPixPos.getY());
+
+    return aPoint;
+}
+
+awt::Size SAL_CALL SwAccessibleContext::getSize()
+{
+    awt::Rectangle aRect = getBoundsImpl(false);
+    awt::Size aSize( aRect.Width, aRect.Height );
+
+    return aSize;
+}
+
+void SAL_CALL SwAccessibleContext::grabFocus()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if( GetFrame()->IsFlyFrame() )
+    {
+        const SdrObject *pObj =
+            static_cast < const SwFlyFrame * >( GetFrame() )->GetVirtDrawObj();
+        if( pObj )
+            Select( const_cast < SdrObject * >( pObj ), false );
+    }
+    else
+    {
+        const SwContentFrame *pCFrame = nullptr;
+        if( GetFrame()->IsContentFrame() )
+            pCFrame = static_cast< const SwContentFrame * >( GetFrame() );
+        else if( GetFrame()->IsLayoutFrame() )
+            pCFrame = static_cast< const SwLayoutFrame * >( GetFrame() )->ContainsContent();
+
+        if( pCFrame && pCFrame->IsTextFrame() )
+        {
+            const SwTextFrame *pTextFrame = static_cast< const SwTextFrame * >( pCFrame );
+            const SwTextNode *pTextNd = pTextFrame->GetTextNodeFirst();
+            assert(pTextNd); // can it actually be null? probably not=>simplify
+            if( pTextNd )
+            {
+                // create pam for selection
+                SwPosition const aStartPos(pTextFrame->MapViewToModelPos(pTextFrame->GetOffset()));
+                SwPaM aPaM( aStartPos );
+
+                // set PaM at cursor shell
+                Select( aPaM );
+            }
+        }
+    }
+}
+
+sal_Int32 SAL_CALL SwAccessibleContext::getForeground()
+{
+    return sal_Int32(COL_BLACK);
+}
+
+sal_Int32 SAL_CALL SwAccessibleContext::getBackground()
+{
+    return sal_Int32(COL_WHITE);
+}
+
+sal_Bool SAL_CALL SwAccessibleContext::supportsService (const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+void SwAccessibleContext::DisposeShape( const SdrObject *pObj,
+                                ::accessibility::AccessibleShape *pAccImpl )
+{
+    ::rtl::Reference< ::accessibility::AccessibleShape > xAccImpl( pAccImpl );
+    if( !xAccImpl.is() )
+        xAccImpl = GetMap()->GetContextImpl( pObj, this );
+
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::CHILD;
+    uno::Reference< XAccessible > xAcc( xAccImpl );
+    aEvent.OldValue <<= xAcc;
+    FireAccessibleEvent( aEvent );
+
+    GetMap()->RemoveContext( pObj );
+    xAccImpl->dispose();
+}
+
+void SwAccessibleContext::ScrolledInShape( ::accessibility::AccessibleShape *pAccImpl )
+{
+    if(nullptr == pAccImpl)
+    {
+        return ;
+    }
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::CHILD;
+    uno::Reference< XAccessible > xAcc( pAccImpl );
+    aEvent.NewValue <<= xAcc;
+    FireAccessibleEvent( aEvent );
+
+    if( !pAccImpl->GetState( AccessibleStateType::FOCUSED ) )
+        return;
+
+    vcl::Window *pWin = GetWindow();
+    if( pWin && pWin->HasFocus() )
+    {
+        AccessibleEventObject aStateChangedEvent;
+        aStateChangedEvent.EventId = AccessibleEventId::STATE_CHANGED;
+        aStateChangedEvent.NewValue <<= AccessibleStateType::FOCUSED;
+        aStateChangedEvent.Source = xAcc;
+
+        FireAccessibleEvent( aStateChangedEvent );
+    }
+}
+
+void SwAccessibleContext::Dispose(bool bRecursive, bool bCanSkipInvisible)
+{
+    SolarMutexGuard aGuard;
+
+    OSL_ENSURE( GetFrame() && GetMap(), "already disposed" );
+    OSL_ENSURE( GetMap()->GetVisArea() == GetVisArea(),
+                "invalid visible area for dispose" );
+
+    m_isDisposing = true;
+
+    // dispose children
+    if( bRecursive )
+        DisposeChildren(GetFrame(), bRecursive, bCanSkipInvisible);
+
+    // get parent
+    uno::Reference< XAccessible > xParent( GetWeakParent() );
+    uno::Reference < XAccessibleContext > xThis( this );
+
+    // send child event at parent
+    if( xParent.is() )
+    {
+        SwAccessibleContext *pAcc = static_cast<SwAccessibleContext *>(xParent.get());
+
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::CHILD;
+        aEvent.OldValue <<= xThis;
+        pAcc->FireAccessibleEvent( aEvent );
+    }
+
+    // set defunc state (it's not required to broadcast a state changed
+    // event if the object is disposed afterwards)
+    {
+        std::scoped_lock aDefuncStateGuard( m_Mutex );
+        m_isDefuncState = true;
+    }
+
+    // broadcast dispose event
+    if (m_nClientId)
+    {
+        comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( m_nClientId, *this );
+        m_nClientId =  0;
+    }
+
+    RemoveFrameFromAccessibleMap();
+    ClearFrame();
+    m_pMap = nullptr;
+    m_wMap.reset();
+
+    m_isDisposing = false;
+}
+
+void SwAccessibleContext::DisposeChild( const SwAccessibleChild& rChildFrameOrObj,
+                                        bool bRecursive, bool bCanSkipInvisible )
+{
+    SolarMutexGuard aGuard;
+
+    if ( !bCanSkipInvisible ||
+         rChildFrameOrObj.AlwaysIncludeAsChild() ||
+         IsShowing( *(GetMap()), rChildFrameOrObj ) ||
+         !SwAccessibleChild( GetFrame() ).IsVisibleChildrenOnly() )
+    {
+        // If the object could have existed before, then there is nothing to do,
+        // because no wrapper exists now and therefore no one is interested to
+        // get notified of the movement.
+        if( rChildFrameOrObj.GetSwFrame() )
+        {
+            ::rtl::Reference< SwAccessibleContext > xAccImpl =
+                    GetMap()->GetContextImpl( rChildFrameOrObj.GetSwFrame(), false );
+            if (xAccImpl)
+                xAccImpl->Dispose( bRecursive );
+        }
+        else if ( rChildFrameOrObj.GetDrawObject() )
+        {
+            ::rtl::Reference< ::accessibility::AccessibleShape > xAccImpl =
+                    GetMap()->GetContextImpl( rChildFrameOrObj.GetDrawObject(),
+                                              this, false );
+            if (xAccImpl)
+                DisposeShape( rChildFrameOrObj.GetDrawObject(),
+                              xAccImpl.get() );
+        }
+        else if ( rChildFrameOrObj.GetWindow() )
+        {
+            AccessibleEventObject aEvent;
+            aEvent.EventId = AccessibleEventId::CHILD;
+            uno::Reference< XAccessible > xAcc =
+                                    rChildFrameOrObj.GetWindow()->GetAccessible();
+            aEvent.OldValue <<= xAcc;
+            FireAccessibleEvent( aEvent );
+        }
+    }
+    else if( bRecursive && rChildFrameOrObj.GetSwFrame() )
+        DisposeChildren(rChildFrameOrObj.GetSwFrame(), bRecursive, bCanSkipInvisible);
+}
+
+void SwAccessibleContext::InvalidatePosOrSize( const SwRect& )
+{
+    SolarMutexGuard aGuard;
+
+    OSL_ENSURE( GetFrame() && !GetFrame()->getFrameArea().IsEmpty(), "context should have a size" );
+
+    bool bIsOldShowingState;
+    bool bIsNewShowingState = IsShowing( *(GetMap()) );
+    {
+        std::scoped_lock aShowingStateGuard( m_Mutex );
+        bIsOldShowingState = m_isShowingState;
+        m_isShowingState = bIsNewShowingState;
+    }
+
+    if( bIsOldShowingState != bIsNewShowingState )
+    {
+        FireStateChangedEvent( AccessibleStateType::SHOWING,
+                               bIsNewShowingState  );
+    }
+    else if( bIsNewShowingState )
+    {
+        // The frame stays visible -> broadcast event
+        FireVisibleDataEvent();
+    }
+
+    // note: InvalidatePosOrSize must call InvalidateContent_ so that
+    // SwAccessibleParagraph updates its portions, or dispose it
+    // (see accmap.cxx: INVALID_CONTENT is contained in POS_CHANGED)
+    if( !bIsNewShowingState &&
+        SwAccessibleChild( GetParent() ).IsVisibleChildrenOnly() )
+    {
+        // this Dispose call was removed by IAccessibility2 implementation
+        // without giving any reason why - without it we get stale
+        // entries in SwAccessibleMap::mpFrameMap.
+        Dispose(true);
+    }
+    else
+    {
+        InvalidateContent_( true );
+    }
+}
+
+void SwAccessibleContext::InvalidateChildPosOrSize(
+                    const SwAccessibleChild& rChildFrameOrObj,
+                    const SwRect& rOldFrame )
+{
+    SolarMutexGuard aGuard;
+
+    // this happens during layout, e.g. when a page is deleted and next page's
+    // header/footer moves backward such an event is generated
+    SAL_INFO_IF(rChildFrameOrObj.GetSwFrame() &&
+            rChildFrameOrObj.GetSwFrame()->getFrameArea().IsEmpty(),
+            "sw.a11y", "child context should have a size");
+
+    if ( rChildFrameOrObj.AlwaysIncludeAsChild() )
+    {
+        // nothing to do;
+        return;
+    }
+
+    const bool bVisibleChildrenOnly = SwAccessibleChild( GetFrame() ).IsVisibleChildrenOnly();
+    const bool bNew = rOldFrame.IsEmpty() ||
+                     ( rOldFrame.Left() == 0 && rOldFrame.Top() == 0 );
+    if( IsShowing( *(GetMap()), rChildFrameOrObj ) )
+    {
+        // If the object could have existed before, then there is nothing to do,
+        // because no wrapper exists now and therefore no one is interested to
+        // get notified of the movement.
+        if( bNew || (bVisibleChildrenOnly && !IsShowing( rOldFrame )) )
+        {
+            if( rChildFrameOrObj.GetSwFrame() )
+            {
+                // The frame becomes visible. A child event must be send.
+                ::rtl::Reference< SwAccessibleContext > xAccImpl =
+                    GetMap()->GetContextImpl( rChildFrameOrObj.GetSwFrame() );
+                xAccImpl->ScrolledIn();
+            }
+            else if ( rChildFrameOrObj.GetDrawObject() )
+            {
+                ::rtl::Reference< ::accessibility::AccessibleShape > xAccImpl =
+                        GetMap()->GetContextImpl( rChildFrameOrObj.GetDrawObject(),
+                                                  this );
+                // #i37790#
+                if ( xAccImpl.is() )
+                {
+                    ScrolledInShape( xAccImpl.get() );
+                }
+                else
+                {
+                    OSL_FAIL( "<SwAccessibleContext::InvalidateChildPosOrSize(..)> - no accessible shape found." );
+                }
+            }
+            else if ( rChildFrameOrObj.GetWindow() )
+            {
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::CHILD;
+                aEvent.NewValue <<= rChildFrameOrObj.GetWindow()->GetAccessible();
+                FireAccessibleEvent( aEvent );
+            }
+        }
+    }
+    else
+    {
+        // If the frame was visible before, then a child event for the parent
+        // needs to be send. However, there is no wrapper existing, and so
+        // no notifications for grandchildren are required. If the are
+        // grandgrandchildren, they would be notified by the layout.
+        if( bVisibleChildrenOnly &&
+            !bNew && IsShowing( rOldFrame ) )
+        {
+            if( rChildFrameOrObj.GetSwFrame() )
+            {
+                ::rtl::Reference< SwAccessibleContext > xAccImpl =
+                    GetMap()->GetContextImpl( rChildFrameOrObj.GetSwFrame() );
+                xAccImpl->SetParent( this );
+                xAccImpl->Dispose( true );
+            }
+            else if ( rChildFrameOrObj.GetDrawObject() )
+            {
+                ::rtl::Reference< ::accessibility::AccessibleShape > xAccImpl =
+                        GetMap()->GetContextImpl( rChildFrameOrObj.GetDrawObject(),
+                                                  this );
+                DisposeShape( rChildFrameOrObj.GetDrawObject(),
+                          xAccImpl.get() );
+            }
+            else if ( rChildFrameOrObj.GetWindow() )
+            {
+                OSL_FAIL( "<SwAccessibleContext::InvalidateChildPosOrSize(..)> - not expected to handle dispose of child of type <vcl::Window>." );
+            }
+        }
+    }
+}
+
+void SwAccessibleContext::InvalidateContent()
+{
+    SolarMutexGuard aGuard;
+
+    InvalidateContent_( false );
+}
+
+void SwAccessibleContext::InvalidateCursorPos()
+{
+    SolarMutexGuard aGuard;
+
+    InvalidateCursorPos_();
+}
+
+void SwAccessibleContext::InvalidateFocus()
+{
+    SolarMutexGuard aGuard;
+
+    InvalidateFocus_();
+}
+
+// #i27301# - use new type definition for <_nStates>
+void SwAccessibleContext::InvalidateStates( AccessibleStates _nStates )
+{
+    if( !GetMap() )
+        return;
+
+    SwViewShell *pVSh = GetMap()->GetShell();
+    if( pVSh )
+    {
+        if( _nStates & AccessibleStates::EDITABLE )
+        {
+            bool bIsOldEditableState;
+            bool bIsNewEditableState = IsEditable( pVSh );
+            {
+                std::scoped_lock aGuard( m_Mutex );
+                bIsOldEditableState = m_isEditableState;
+                m_isEditableState = bIsNewEditableState;
+            }
+
+            if( bIsOldEditableState != bIsNewEditableState )
+                FireStateChangedEvent( AccessibleStateType::EDITABLE,
+                                       bIsNewEditableState  );
+        }
+        if( _nStates & AccessibleStates::OPAQUE )
+        {
+            bool bIsOldOpaqueState;
+            bool bIsNewOpaqueState = IsOpaque( pVSh );
+            {
+                std::scoped_lock aGuard( m_Mutex );
+                bIsOldOpaqueState = m_isOpaqueState;
+                m_isOpaqueState = bIsNewOpaqueState;
+            }
+
+            if( bIsOldOpaqueState != bIsNewOpaqueState )
+                FireStateChangedEvent( AccessibleStateType::OPAQUE,
+                                       bIsNewOpaqueState  );
+        }
+    }
+
+    InvalidateChildrenStates( GetFrame(), _nStates );
+}
+
+void SwAccessibleContext::InvalidateRelation( sal_uInt16 nType )
+{
+    AccessibleEventObject aEvent;
+    aEvent.EventId = nType;
+
+    FireAccessibleEvent( aEvent );
+}
+
+/** #i27301# - text selection has changed */
+void SwAccessibleContext::InvalidateTextSelection()
+{
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::TEXT_SELECTION_CHANGED;
+
+    FireAccessibleEvent( aEvent );
+}
+
+/** #i88069# - attributes has changed */
+void SwAccessibleContext::InvalidateAttr()
+{
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::TEXT_ATTRIBUTE_CHANGED;
+
+    FireAccessibleEvent( aEvent );
+}
+
+bool SwAccessibleContext::HasCursor()
+{
+    return false;
+}
+
+bool SwAccessibleContext::Select( SwPaM *pPaM, SdrObject *pObj,
+                                  bool bAdd )
+{
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( !pCursorShell )
+        return false;
+
+    SwFEShell* pFEShell = dynamic_cast<SwFEShell*>(pCursorShell);
+    // Get rid of activated OLE object
+    if( pFEShell )
+        pFEShell->FinishOLEObj();
+
+    SwWrtShell* pWrtShell = dynamic_cast<SwWrtShell*>(pCursorShell);
+
+    bool bRet = false;
+    if( pObj )
+    {
+        if( pFEShell )
+        {
+            sal_uInt8 nFlags = bAdd ? SW_ADD_SELECT : 0;
+            pFEShell->SelectObj( Point(), nFlags, pObj );
+            bRet = true;
+        }
+    }
+    else if( pPaM )
+    {
+        // Get rid of frame selection. If there is one, make text cursor
+        // visible again.
+        bool bCallShowCursor = false;
+        if( pFEShell && (pFEShell->IsFrameSelected() ||
+                         pFEShell->IsObjSelected()) )
+        {
+            Point aPt( LONG_MIN, LONG_MIN );
+            pFEShell->SelectObj( aPt );
+            bCallShowCursor = true;
+        }
+        pCursorShell->KillPams();
+        if( pWrtShell && pPaM->HasMark() )
+            // We have to do this or SwWrtShell can't figure out that it needs
+            // to kill the selection later, when the user moves the cursor.
+            pWrtShell->SttSelect();
+        pCursorShell->SetSelection( *pPaM );
+        if( pPaM->HasMark() && *pPaM->GetPoint() == *pPaM->GetMark())
+            // Setting a "Selection" that starts and ends at the same spot
+            // should remove the selection rather than create an empty one, so
+            // that we get defined behavior if accessibility sets the cursor
+            // later.
+            pCursorShell->ClearMark();
+        if( bCallShowCursor )
+            pCursorShell->ShowCursor();
+        bRet = true;
+    }
+
+    return bRet;
+}
+
+OUString SwAccessibleContext::GetResource(TranslateId pResId,
+                                          const OUString *pArg1,
+                                          const OUString *pArg2)
+{
+    OUString sStr = SwResId(pResId);
+
+    if( pArg1 )
+    {
+        sStr = sStr.replaceFirst( "$(ARG1)", *pArg1 );
+    }
+    if( pArg2 )
+    {
+        sStr = sStr.replaceFirst( "$(ARG2)", *pArg2 );
+    }
+
+    return sStr;
+}
+
+void SwAccessibleContext::RemoveFrameFromAccessibleMap()
+{
+    assert(m_refCount > 0); // must be alive to do this without using m_wMap
+    if (m_isRegisteredAtAccessibleMap && GetFrame() && GetMap())
+        GetMap()->RemoveContext( GetFrame() );
+}
+
+bool SwAccessibleContext::HasAdditionalAccessibleChildren()
+{
+    bool bRet( false );
+
+    if ( GetFrame()->IsTextFrame() )
+    {
+        SwPostItMgr* pPostItMgr = GetMap()->GetShell()->GetPostItMgr();
+        if ( pPostItMgr && pPostItMgr->HasNotes() && pPostItMgr->ShowNotes() )
+        {
+            bRet = pPostItMgr->HasFrameConnectedSidebarWins( *(GetFrame()) );
+        }
+    }
+
+    return bRet;
+}
+
+/** #i88070# - get additional accessible child by index */
+vcl::Window* SwAccessibleContext::GetAdditionalAccessibleChild( const sal_Int32 nIndex )
+{
+    vcl::Window* pAdditionalAccessibleChild( nullptr );
+
+    if ( GetFrame()->IsTextFrame() )
+    {
+        SwPostItMgr* pPostItMgr = GetMap()->GetShell()->GetPostItMgr();
+        if ( pPostItMgr && pPostItMgr->HasNotes() && pPostItMgr->ShowNotes() )
+        {
+            pAdditionalAccessibleChild =
+                    pPostItMgr->GetSidebarWinForFrameByIndex( *(GetFrame()), nIndex );
+        }
+    }
+
+    return pAdditionalAccessibleChild;
+}
+
+/** #i88070# - get all additional accessible children */
+void SwAccessibleContext::GetAdditionalAccessibleChildren( std::vector< vcl::Window* >* pChildren )
+{
+    if ( GetFrame()->IsTextFrame() )
+    {
+        SwPostItMgr* pPostItMgr = GetMap()->GetShell()->GetPostItMgr();
+        if ( pPostItMgr && pPostItMgr->HasNotes() && pPostItMgr->ShowNotes() )
+        {
+            pPostItMgr->GetAllSidebarWinForFrame( *(GetFrame()), pChildren );
+        }
+    }
+}
+
+bool SwAccessibleContext::SetSelectedState(bool const bSelected)
+{
+    if (m_isSelectedInDoc != bSelected)
+    {
+        m_isSelectedInDoc = bSelected;
+        FireStateChangedEvent( AccessibleStateType::SELECTED, bSelected );
+        return true;
+    }
+    return false;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acccontext.hxx b/sw/source/core/access/acccontext.hxx
new file mode 100644
index 000000000..4faf8e237
--- /dev/null
+++ b/sw/source/core/access/acccontext.hxx
@@ -0,0 +1,362 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include "accframe.hxx"
+#include <accmap.hxx>
+#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
+#include <com/sun/star/accessibility/XAccessibleContext3.hpp>
+#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <unotools/resmgr.hxx>
+
+#include <memory>
+#include <mutex>
+
+namespace vcl { class Window; }
+class SwCursorShell;
+class SdrObject;
+class SwPaM;
+namespace utl {
+    class AccessibleStateSetHelper;
+}
+namespace accessibility {
+    class AccessibleShape;
+}
+
+inline constexpr OUStringLiteral sAccessibleServiceName = u"com.sun.star.accessibility.Accessible";
+
+class SwAccessibleContext :
+    public ::cppu::WeakImplHelper<
+                css::accessibility::XAccessible,
+                css::accessibility::XAccessibleContext,
+                css::accessibility::XAccessibleContext3,
+                css::accessibility::XAccessibleComponent,
+                css::accessibility::XAccessibleEventBroadcaster,
+                css::lang::XServiceInfo
+                >,
+    public SwAccessibleFrame
+{
+    // The implements for the XAccessibleSelection interface has been
+    // 'externalized' and wants access to the protected members like
+    // GetMap, GetChild, GetParent, and GetFrame.
+    friend class SwAccessibleSelectionHelper;
+#if OSL_DEBUG_LEVEL > 0
+    friend class SwAccessibleMap;
+#endif
+
+protected:
+    mutable std::mutex m_Mutex;
+
+private:
+    OUString m_sName;  // immutable outside constructor
+
+    // The parent if it has been retrieved. This is always an
+    // SwAccessibleContext. (protected by Mutex)
+    css::uno::WeakReference <
+        css::accessibility::XAccessible > m_xWeakParent;
+
+    SwAccessibleMap *m_pMap; // must be protected by solar mutex
+    /// note: the m_pMap is guaranteed to be valid until we hit the
+    /// dtor ~SwAccessibleContext, then m_wMap must be checked if it's still
+    /// alive, after locking SolarMutex (alternatively, Dispose clears m_pMap)
+    std::weak_ptr<SwAccessibleMap> m_wMap;
+
+    sal_uInt32 m_nClientId;  // client id in the AccessibleEventNotifier queue
+    sal_Int16 m_nRole;        // immutable outside constructor
+
+    // The current states (protected by mutex)
+    bool m_isShowingState : 1;
+    bool m_isEditableState : 1;
+    bool m_isOpaqueState : 1;
+    bool m_isDefuncState : 1;
+
+    // Are we currently disposing that object (protected by solar mutex)?
+    bool m_isDisposing : 1;
+
+    // #i85634# - boolean, indicating if the accessible context is
+    // in general registered at the accessible map.
+    bool m_isRegisteredAtAccessibleMap;
+
+    void InitStates();
+
+protected:
+    void SetName( const OUString& rName ) { m_sName = rName; }
+    sal_Int16 GetRole() const
+    {
+        return m_nRole;
+    }
+    //This flag is used to mark the object's selected state.
+    bool   m_isSelectedInDoc;
+    void SetParent( SwAccessibleContext *pParent );
+    css::uno::Reference< css::accessibility::XAccessible> GetWeakParent() const;
+
+    bool IsDisposing() const { return m_isDisposing; }
+
+    vcl::Window *GetWindow();
+    SwAccessibleMap *GetMap() { return m_pMap; }
+    const SwAccessibleMap *GetMap() const { return m_pMap; }
+
+    /** convenience method to get the SwViewShell through accessibility map */
+    SwViewShell* GetShell()
+    {
+        return GetMap()->GetShell();
+    }
+    const SwViewShell* GetShell() const
+    {
+        return GetMap()->GetShell();
+    }
+
+    /** convenience method to get SwCursorShell through accessibility map
+     * @returns SwCursorShell, or NULL if none is found */
+    SwCursorShell* GetCursorShell();
+    const SwCursorShell* GetCursorShell() const;
+
+    // Notify all children that the visible area has changed.
+    // The SwFrame might belong to the current object or to any other child or
+    // grandchild.
+    void ChildrenScrolled( const SwFrame *pFrame, const SwRect& rOldVisArea );
+
+    // The context's showing state changed. May only be called for context that
+    // exist even if they aren't visible.
+    void Scrolled( const SwRect& rOldVisArea );
+
+    // A child has been moved while setting the visible area
+    void ScrolledWithin( const SwRect& rOldVisArea );
+
+    // The has been added while setting the visible area
+    void ScrolledIn();
+
+    // The context has to be removed while setting the visible area
+    void ScrolledOut( const SwRect& rOldVisArea );
+
+    // Invalidate the states of all children of the specified SwFrame. The
+    // SwFrame might belong the current object or to any child or grandchild!
+    // #i27301# - use new type definition for <_nStates>
+    void InvalidateChildrenStates( const SwFrame* _pFrame,
+                                   AccessibleStates _nStates );
+
+    // Dispose children of the specified SwFrame. The SwFrame might belong to
+    // the current object or to any other child or grandchild.
+    void DisposeChildren(const SwFrame *pFrame,
+                         bool bRecursive, bool bCanSkipInvisible);
+
+    void DisposeShape( const SdrObject *pObj,
+                                ::accessibility::AccessibleShape *pAccImpl );
+    void ScrolledInShape( ::accessibility::AccessibleShape *pAccImpl );
+
+    virtual void InvalidateContent_( bool bVisibleDataFired );
+
+    virtual void InvalidateCursorPos_();
+    virtual void InvalidateFocus_();
+
+public:
+    void FireAccessibleEvent( css::accessibility::AccessibleEventObject& rEvent );
+
+protected:
+    // broadcast visual data event
+    void FireVisibleDataEvent();
+
+    // broadcast state change event
+    void FireStateChangedEvent( sal_Int16 nState, bool bNewState );
+
+    // Set states for getAccessibleStateSet.
+    // This base class sets DEFUNC(0/1), EDITABLE(0/1), ENABLED(1),
+    // SHOWING(0/1), OPAQUE(0/1) and VISIBLE(1).
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet );
+
+     bool IsEditableState();
+
+    /// @throws css::uno::RuntimeException
+    css::awt::Rectangle
+        getBoundsImpl(bool bRelative);
+
+    // #i85634#
+    void NotRegisteredAtAccessibleMap()
+    {
+        m_isRegisteredAtAccessibleMap = false;
+    }
+    void RemoveFrameFromAccessibleMap();
+
+    void ThrowIfDisposed();
+
+    virtual ~SwAccessibleContext() override;
+
+    // Return a reference to the parent.
+    css::uno::Reference< css::accessibility::XAccessible>
+        getAccessibleParentImpl();
+
+public:
+    SwAccessibleContext( std::shared_ptr<SwAccessibleMap> const& pMap,
+                         sal_Int16 nRole, const SwFrame *pFrame );
+
+    // XAccessible
+
+    // Return the XAccessibleContext.
+    virtual css::uno::Reference< css::accessibility::XAccessibleContext> SAL_CALL
+        getAccessibleContext() override;
+
+    // XAccessibleContext
+
+    // Return the number of currently visible children.
+    virtual sal_Int32 SAL_CALL getAccessibleChildCount() override;
+
+    // Return the specified child or NULL if index is invalid.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleChild (sal_Int32 nIndex) override;
+
+    virtual css::uno::Sequence<css::uno::Reference< css::accessibility::XAccessible>> SAL_CALL
+        getAccessibleChildren() override;
+
+    // Return a reference to the parent.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleParent() override;
+
+    // Return this objects index among the parents children.
+    virtual sal_Int32 SAL_CALL
+        getAccessibleIndexInParent() override;
+
+    // Return this object's role.
+    virtual sal_Int16 SAL_CALL
+        getAccessibleRole() override;
+
+    // getAccessibleDescription() is abstract
+
+    // Return the object's current name.
+    virtual OUString SAL_CALL
+        getAccessibleName() override;
+
+    // Return NULL to indicate that an empty relation set.
+    virtual css::uno::Reference<
+            css::accessibility::XAccessibleRelationSet> SAL_CALL
+        getAccessibleRelationSet() override;
+
+    // Return the set of current states.
+    virtual css::uno::Reference<
+            css::accessibility::XAccessibleStateSet> SAL_CALL
+        getAccessibleStateSet() override;
+
+    /** Return the parents locale or throw exception if this object has no
+        parent yet/anymore. */
+    virtual css::lang::Locale SAL_CALL
+        getLocale() override;
+
+    // XAccessibleEventBroadcaster
+
+    virtual void SAL_CALL addAccessibleEventListener(
+            const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
+    virtual void SAL_CALL removeAccessibleEventListener(
+            const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
+
+    // XAccessibleComponent
+    virtual sal_Bool SAL_CALL containsPoint(
+            const css::awt::Point& aPoint ) override;
+
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint(
+                const css::awt::Point& aPoint ) override;
+
+    virtual css::awt::Rectangle SAL_CALL getBounds() override;
+
+    virtual css::awt::Point SAL_CALL getLocation() override;
+
+    virtual css::awt::Point SAL_CALL getLocationOnScreen() override;
+
+    virtual css::awt::Size SAL_CALL getSize() override;
+
+    virtual void SAL_CALL grabFocus() override;
+
+    virtual sal_Int32 SAL_CALL getForeground() override;
+    virtual sal_Int32 SAL_CALL getBackground() override;
+
+    // XServiceInfo
+
+    // getImplementationName() and getSupportedServiceNames are abstract
+
+    /** Return whether the specified service is supported by this class. */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    // thread safe C++ interface
+
+    // The object is not visible any longer and should be destroyed
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true);
+
+    // The child object is not visible any longer and should be destroyed
+    virtual void DisposeChild(const sw::access::SwAccessibleChild& rFrameOrObj, bool bRecursive, bool bCanSkipInvisible);
+
+    // The object has been moved by the layout
+    virtual void InvalidatePosOrSize( const SwRect& rFrame );
+
+    // The child object has been moved by the layout
+    virtual void InvalidateChildPosOrSize( const sw::access::SwAccessibleChild& rFrameOrObj,
+                                           const SwRect& rFrame );
+
+    // The content may have changed (but it hasn't to have changed)
+    void InvalidateContent();
+
+    // The caretPos has changed
+    void InvalidateCursorPos();
+
+    // The Focus state has changed
+    void InvalidateFocus();
+
+    // Check states
+    // #i27301# - use new type definition for <_nStates>
+    void InvalidateStates( AccessibleStates _nStates );
+
+    // the XAccessibleRelationSet may have changed
+    void InvalidateRelation( sal_uInt16 nType );
+
+    void InvalidateTextSelection(); // #i27301# - text selection has changed
+    void InvalidateAttr(); // #i88069# - attributes has changed
+
+    bool HasAdditionalAccessibleChildren();
+
+    // #i88070# - get additional child by index
+    vcl::Window* GetAdditionalAccessibleChild( const sal_Int32 nIndex );
+
+    // #i88070# - get all additional accessible children
+    void GetAdditionalAccessibleChildren( std::vector< vcl::Window* >* pChildren );
+
+    const OUString& GetName() const { return m_sName; }
+
+    virtual bool HasCursor();   // required by map to remember that object
+
+    bool Select( SwPaM *pPaM, SdrObject *pObj, bool bAdd );
+    bool Select( SwPaM& rPaM )
+    {
+        return Select( &rPaM, nullptr, false );
+    }
+    bool Select( SdrObject *pObj, bool bAdd )
+    {
+        return Select( nullptr, pObj, bAdd );
+    }
+
+    //This method is used to update the selected state and fire the selected state changed event.
+    virtual bool SetSelectedState(bool bSelected);
+    bool  IsSelectedInDoc() const { return m_isSelectedInDoc; }
+
+    static OUString GetResource(TranslateId pResId,
+                                const OUString *pArg1 = nullptr,
+                                const OUString *pArg2 = nullptr);
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accdoc.cxx b/sw/source/core/access/accdoc.cxx
new file mode 100644
index 000000000..4eb719242
--- /dev/null
+++ b/sw/source/core/access/accdoc.cxx
@@ -0,0 +1,716 @@
+/* -*- 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 <vcl/window.hxx>
+#include <rootfrm.hxx>
+
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <cppuhelper/typeprovider.hxx>
+#include <vcl/svapp.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <viewsh.hxx>
+#include <doc.hxx>
+#include <accmap.hxx>
+#include "accdoc.hxx"
+#include <strings.hrc>
+#include <pagefrm.hxx>
+
+#include <swatrset.hxx>
+#include <docsh.hxx>
+#include <crsrsh.hxx>
+#include <fesh.hxx>
+#include <fmtclds.hxx>
+#include <flyfrm.hxx>
+#include <txtfrm.hxx>
+#include <sectfrm.hxx>
+#include <section.hxx>
+#include <swmodule.hxx>
+#include <svtools/colorcfg.hxx>
+
+#include <fmtanchr.hxx>
+#include <viewimp.hxx>
+#include <dview.hxx>
+#include <dcontact.hxx>
+#include <svx/svdmark.hxx>
+constexpr OUStringLiteral sServiceName = u"com.sun.star.text.AccessibleTextDocumentView";
+constexpr OUStringLiteral sImplementationName = u"com.sun.star.comp.Writer.SwAccessibleDocumentView";
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+using lang::IndexOutOfBoundsException;
+
+// SwAccessibleDocumentBase: base class for SwAccessibleDocument and
+// SwAccessiblePreview
+
+SwAccessibleDocumentBase::SwAccessibleDocumentBase(
+        std::shared_ptr<SwAccessibleMap> const& pMap)
+    : SwAccessibleContext(pMap, AccessibleRole::DOCUMENT_TEXT,
+                          pMap->GetShell()->GetLayout())
+    , mxParent(pMap->GetShell()->GetWin()->GetAccessibleParentWindow()->GetAccessible())
+    , mpChildWin(nullptr)
+{
+}
+
+SwAccessibleDocumentBase::~SwAccessibleDocumentBase()
+{
+}
+
+void SwAccessibleDocumentBase::SetVisArea()
+{
+    SolarMutexGuard aGuard;
+
+    SwRect aOldVisArea( GetVisArea() );
+    const SwRect& rNewVisArea = GetMap()->GetVisArea();
+    if( aOldVisArea != rNewVisArea )
+    {
+        SwAccessibleFrame::SetVisArea( GetMap()->GetVisArea() );
+        // #i58139# - showing state of document view needs also be updated.
+        // Thus, call method <Scrolled(..)> instead of <ChildrenScrolled(..)>
+        // ChildrenScrolled( GetFrame(), aOldVisArea );
+        Scrolled( aOldVisArea );
+    }
+}
+
+void SwAccessibleDocumentBase::AddChild( vcl::Window *pWin, bool bFireEvent )
+{
+    SolarMutexGuard aGuard;
+
+    OSL_ENSURE( !mpChildWin, "only one child window is supported" );
+    if( !mpChildWin )
+    {
+        mpChildWin = pWin;
+
+        if( bFireEvent )
+        {
+            AccessibleEventObject aEvent;
+            aEvent.EventId = AccessibleEventId::CHILD;
+            aEvent.NewValue <<= mpChildWin->GetAccessible();
+            FireAccessibleEvent( aEvent );
+        }
+    }
+}
+
+void SwAccessibleDocumentBase::RemoveChild( vcl::Window *pWin )
+{
+    SolarMutexGuard aGuard;
+
+    OSL_ENSURE( !mpChildWin || pWin == mpChildWin, "invalid child window to remove" );
+    if( mpChildWin && pWin == mpChildWin )
+    {
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::CHILD;
+        aEvent.OldValue <<= mpChildWin->GetAccessible();
+        FireAccessibleEvent( aEvent );
+
+        mpChildWin = nullptr;
+    }
+}
+
+sal_Int32 SAL_CALL SwAccessibleDocumentBase::getAccessibleChildCount()
+{
+    SolarMutexGuard aGuard;
+
+    // ThrowIfDisposed is called by parent
+
+    sal_Int32 nChildren = SwAccessibleContext::getAccessibleChildCount();
+    if( !IsDisposing() && mpChildWin )
+        nChildren++;
+
+    return nChildren;
+}
+
+uno::Reference< XAccessible> SAL_CALL
+    SwAccessibleDocumentBase::getAccessibleChild( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    if( mpChildWin  )
+    {
+        ThrowIfDisposed();
+
+        if ( nIndex == GetChildCount( *(GetMap()) ) )
+        {
+            return mpChildWin->GetAccessible();
+        }
+    }
+
+    return SwAccessibleContext::getAccessibleChild( nIndex );
+}
+
+uno::Reference< XAccessible> SAL_CALL SwAccessibleDocumentBase::getAccessibleParent()
+{
+    return mxParent;
+}
+
+sal_Int32 SAL_CALL SwAccessibleDocumentBase::getAccessibleIndexInParent()
+{
+    SolarMutexGuard aGuard;
+
+    uno::Reference < XAccessibleContext > xAcc( mxParent->getAccessibleContext() );
+    uno::Reference < XAccessible > xThis( this );
+    sal_Int32 nCount = xAcc->getAccessibleChildCount();
+
+    for( sal_Int32 i=0; i < nCount; i++ )
+    {
+        try
+        {
+            if( xAcc->getAccessibleChild( i ) == xThis )
+                return i;
+        }
+        catch(const css::lang::IndexOutOfBoundsException &)
+        {
+            return -1;
+        }
+    }
+    return -1;
+}
+
+OUString SAL_CALL SwAccessibleDocumentBase::getAccessibleDescription()
+{
+    return GetResource( STR_ACCESS_DOC_DESC );
+}
+
+OUString SAL_CALL SwAccessibleDocumentBase::getAccessibleName()
+{
+    SolarMutexGuard g;
+
+    OUString sAccName = GetResource( STR_ACCESS_DOC_WORDPROCESSING );
+    SwDoc *pDoc = GetMap() ? GetShell()->GetDoc() : nullptr;
+    if ( pDoc )
+    {
+        OUString sFileName = pDoc->getDocAccTitle();
+        if ( sFileName.isEmpty() )
+        {
+            SwDocShell* pDocSh = pDoc->GetDocShell();
+            if ( pDocSh )
+            {
+                sFileName = pDocSh->GetTitle( SFX_TITLE_APINAME );
+            }
+        }
+
+        if ( !sFileName.isEmpty() )
+        {
+            sAccName = sFileName + " - " + sAccName;
+        }
+    }
+
+    return sAccName;
+}
+
+awt::Rectangle SAL_CALL SwAccessibleDocumentBase::getBounds()
+{
+    try
+    {
+        SolarMutexGuard aGuard;
+
+        vcl::Window *pWin = GetWindow();
+        if (!pWin)
+        {
+            throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+        }
+
+        tools::Rectangle aPixBounds( pWin->GetWindowExtentsRelative( pWin->GetAccessibleParentWindow() ) );
+        awt::Rectangle aBox( aPixBounds.Left(), aPixBounds.Top(),
+                             aPixBounds.GetWidth(), aPixBounds.GetHeight() );
+
+        return aBox;
+    }
+    catch(const css::lang::IndexOutOfBoundsException &)
+    {
+        return awt::Rectangle();
+    }
+}
+
+awt::Point SAL_CALL SwAccessibleDocumentBase::getLocation()
+{
+    SolarMutexGuard aGuard;
+
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    Point aPixPos( pWin->GetWindowExtentsRelative( pWin->GetAccessibleParentWindow() ).TopLeft() );
+    awt::Point aLoc( aPixPos.getX(), aPixPos.getY() );
+
+    return aLoc;
+}
+
+css::awt::Point SAL_CALL SwAccessibleDocumentBase::getLocationOnScreen()
+{
+    SolarMutexGuard aGuard;
+
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    Point aPixPos( pWin->GetWindowExtentsRelative( nullptr ).TopLeft() );
+    awt::Point aLoc( aPixPos.getX(), aPixPos.getY() );
+
+    return aLoc;
+}
+
+css::awt::Size SAL_CALL SwAccessibleDocumentBase::getSize()
+{
+    SolarMutexGuard aGuard;
+
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    Size aPixSize( pWin->GetWindowExtentsRelative( nullptr ).GetSize() );
+    awt::Size aSize( aPixSize.Width(), aPixSize.Height() );
+
+    return aSize;
+}
+
+sal_Bool SAL_CALL SwAccessibleDocumentBase::containsPoint(
+            const awt::Point& aPoint )
+{
+    SolarMutexGuard aGuard;
+
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    tools::Rectangle aPixBounds( pWin->GetWindowExtentsRelative( nullptr ) );
+    aPixBounds.Move(-aPixBounds.Left(), -aPixBounds.Top());
+
+    Point aPixPoint( aPoint.X, aPoint.Y );
+    return aPixBounds.Contains( aPixPoint );
+}
+
+uno::Reference< XAccessible > SAL_CALL SwAccessibleDocumentBase::getAccessibleAtPoint(
+                const awt::Point& aPoint )
+{
+    SolarMutexGuard aGuard;
+
+    if( mpChildWin  )
+    {
+        ThrowIfDisposed();
+
+        vcl::Window *pWin = GetWindow();
+        if (!pWin)
+        {
+            throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+        }
+        if (pWin->isDisposed()) // tdf#147967
+            return nullptr;
+
+        Point aPixPoint( aPoint.X, aPoint.Y ); // px rel to window
+        if( mpChildWin->GetWindowExtentsRelative( pWin ).Contains( aPixPoint ) )
+            return mpChildWin->GetAccessible();
+    }
+
+    return SwAccessibleContext::getAccessibleAtPoint( aPoint );
+}
+
+// SwAccessibleDocument
+
+void SwAccessibleDocument::GetStates(
+        ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SwAccessibleContext::GetStates( rStateSet );
+
+    // MULTISELECTABLE
+    rStateSet.AddState( AccessibleStateType::MULTI_SELECTABLE );
+    rStateSet.AddState( AccessibleStateType::MANAGES_DESCENDANTS );
+}
+
+SwAccessibleDocument::SwAccessibleDocument(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap)
+    : SwAccessibleDocumentBase(pInitMap)
+    , maSelectionHelper(*this)
+{
+    SetName(pInitMap->GetDocName());
+    vcl::Window *pWin = pInitMap->GetShell()->GetWin();
+    if( pWin )
+    {
+        pWin->AddChildEventListener( LINK( this, SwAccessibleDocument, WindowChildEventListener ));
+        sal_uInt16 nCount =   pWin->GetChildCount();
+        for( sal_uInt16 i=0; i < nCount; i++ )
+        {
+            vcl::Window* pChildWin = pWin->GetChild( i );
+            if( pChildWin &&
+                AccessibleRole::EMBEDDED_OBJECT == pChildWin->GetAccessibleRole() )
+                AddChild( pChildWin, false );
+        }
+    }
+}
+
+SwAccessibleDocument::~SwAccessibleDocument()
+{
+    vcl::Window *pWin = GetMap() ? GetMap()->GetShell()->GetWin() : nullptr;
+    if( pWin )
+        pWin->RemoveChildEventListener( LINK( this, SwAccessibleDocument, WindowChildEventListener ));
+}
+
+void SwAccessibleDocument::Dispose(bool bRecursive, bool bCanSkipInvisible)
+{
+    OSL_ENSURE( GetFrame() && GetMap(), "already disposed" );
+
+    vcl::Window *pWin = GetMap() ? GetMap()->GetShell()->GetWin() : nullptr;
+    if( pWin )
+        pWin->RemoveChildEventListener( LINK( this, SwAccessibleDocument, WindowChildEventListener ));
+    SwAccessibleContext::Dispose(bRecursive, bCanSkipInvisible);
+}
+
+IMPL_LINK( SwAccessibleDocument, WindowChildEventListener, VclWindowEvent&, rEvent, void )
+{
+    OSL_ENSURE( rEvent.GetWindow(), "Window???" );
+    switch ( rEvent.GetId() )
+    {
+    case VclEventId::WindowShow:  // send create on show for direct accessible children
+        {
+            vcl::Window* pChildWin = static_cast< vcl::Window* >( rEvent.GetData() );
+            if( pChildWin && AccessibleRole::EMBEDDED_OBJECT == pChildWin->GetAccessibleRole() )
+            {
+                AddChild( pChildWin );
+            }
+        }
+        break;
+    case VclEventId::WindowHide:  // send destroy on hide for direct accessible children
+        {
+            vcl::Window* pChildWin = static_cast< vcl::Window* >( rEvent.GetData() );
+            if( pChildWin && AccessibleRole::EMBEDDED_OBJECT == pChildWin->GetAccessibleRole() )
+            {
+                RemoveChild( pChildWin );
+            }
+        }
+        break;
+    case VclEventId::ObjectDying:  // send destroy on hide for direct accessible children
+        {
+            vcl::Window* pChildWin = rEvent.GetWindow();
+            if( pChildWin && AccessibleRole::EMBEDDED_OBJECT == pChildWin->GetAccessibleRole() )
+            {
+                RemoveChild( pChildWin );
+            }
+        }
+        break;
+    default: break;
+    }
+}
+
+OUString SAL_CALL SwAccessibleDocument::getImplementationName()
+{
+    return sImplementationName;
+}
+
+sal_Bool SAL_CALL SwAccessibleDocument::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL SwAccessibleDocument::getSupportedServiceNames()
+{
+    return { sServiceName, sAccessibleServiceName };
+}
+
+// XInterface
+
+uno::Any SwAccessibleDocument::queryInterface(
+    const uno::Type& rType )
+{
+    uno::Any aRet;
+    if ( rType == cppu::UnoType<XAccessibleSelection>::get() )
+    {
+        uno::Reference<XAccessibleSelection> aSelect = this;
+        aRet <<= aSelect;
+    }
+    else  if ( rType == cppu::UnoType<XAccessibleExtendedAttributes>::get())
+    {
+        uno::Reference<XAccessibleExtendedAttributes> aAttribute = this;
+        aRet <<= aAttribute;
+    }
+    else
+        aRet = SwAccessibleContext::queryInterface( rType );
+    return aRet;
+}
+
+// XTypeProvider
+uno::Sequence< uno::Type > SAL_CALL SwAccessibleDocument::getTypes()
+{
+    return cppu::OTypeCollection(
+            cppu::UnoType<XAccessibleSelection>::get(),
+            SwAccessibleDocumentBase::getTypes() ).getTypes();
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleDocument::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XAccessibleSelection
+
+void SwAccessibleDocument::selectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    maSelectionHelper.selectAccessibleChild(nChildIndex);
+}
+
+sal_Bool SwAccessibleDocument::isAccessibleChildSelected(
+    sal_Int32 nChildIndex )
+{
+    return maSelectionHelper.isAccessibleChildSelected(nChildIndex);
+}
+
+void SwAccessibleDocument::clearAccessibleSelection(  )
+{
+}
+
+void SwAccessibleDocument::selectAllAccessibleChildren(  )
+{
+    maSelectionHelper.selectAllAccessibleChildren();
+}
+
+sal_Int32 SwAccessibleDocument::getSelectedAccessibleChildCount(  )
+{
+    return maSelectionHelper.getSelectedAccessibleChildCount();
+}
+
+uno::Reference<XAccessible> SwAccessibleDocument::getSelectedAccessibleChild(
+    sal_Int32 nSelectedChildIndex )
+{
+    return maSelectionHelper.getSelectedAccessibleChild(nSelectedChildIndex);
+}
+
+// index has to be treated as global child index.
+void SwAccessibleDocument::deselectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    maSelectionHelper.deselectAccessibleChild( nChildIndex );
+}
+
+uno::Any SAL_CALL SwAccessibleDocument::getExtendedAttributes()
+{
+    SolarMutexGuard g;
+
+    uno::Any anyAttribute;
+    SwDoc *pDoc = GetMap() ? GetShell()->GetDoc() : nullptr;
+
+    if (!pDoc)
+        return anyAttribute;
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( !pCursorShell )
+        return anyAttribute;
+
+    SwFEShell* pFEShell = dynamic_cast<SwFEShell*>(pCursorShell);
+    if( pFEShell )
+    {
+        OUString sDisplay;
+        sal_uInt16 nPage, nLogPage;
+        pFEShell->GetPageNumber(-1,true,nPage,nLogPage,sDisplay);
+
+        OUString sValue = "page-name:" + sDisplay +
+            ";page-number:" +
+            OUString::number( nPage ) +
+            ";total-pages:" +
+            OUString::number( pCursorShell->GetPageCnt() ) + ";";
+
+        SwContentFrame* pCurrFrame = pCursorShell->GetCurrFrame();
+        SwPageFrame* pCurrPage=static_cast<SwFrame*>(pCurrFrame)->FindPageFrame();
+        sal_uLong nLineNum = 0;
+        SwTextFrame* pTextFrame = nullptr;
+        SwTextFrame* pCurrTextFrame = nullptr;
+        pTextFrame = static_cast< SwTextFrame* >(pCurrPage->ContainsContent());
+        if (pCurrFrame->IsInFly())//such as, graphic,chart
+        {
+            SwFlyFrame *pFlyFrame = pCurrFrame->FindFlyFrame();
+            const SwFormatAnchor& rAnchor = pFlyFrame->GetFormat()->GetAnchor();
+            RndStdIds eAnchorId = rAnchor.GetAnchorId();
+            if(eAnchorId == RndStdIds::FLY_AS_CHAR)
+            {
+                const SwFrame *pSwFrame = pFlyFrame->GetAnchorFrame();
+                if(pSwFrame->IsTextFrame())
+                    pCurrTextFrame = const_cast<SwTextFrame*>(static_cast<const SwTextFrame*>(pSwFrame));
+            }
+        }
+        else
+        {
+            assert(dynamic_cast<SwTextFrame*>(pCurrFrame));
+            pCurrTextFrame = static_cast<SwTextFrame* >(pCurrFrame);
+        }
+        //check whether the text frame where the Graph/OLE/Frame anchored is in the Header/Footer
+        SwFrame* pFrame = pCurrTextFrame;
+        while ( pFrame && !pFrame->IsHeaderFrame() && !pFrame->IsFooterFrame() )
+            pFrame = pFrame->GetUpper();
+        if ( pFrame )
+            pCurrTextFrame = nullptr;
+        //check shape
+        if(pCursorShell->Imp()->GetDrawView())
+        {
+            const SdrMarkList &rMrkList = pCursorShell->Imp()->GetDrawView()->GetMarkedObjectList();
+            for ( size_t i = 0; i < rMrkList.GetMarkCount(); ++i )
+            {
+                SdrObject *pObj = rMrkList.GetMark(i)->GetMarkedSdrObj();
+                SwFrameFormat* pFormat = static_cast<SwDrawContact*>(pObj->GetUserCall())->GetFormat();
+                const SwFormatAnchor& rAnchor = pFormat->GetAnchor();
+                if( RndStdIds::FLY_AS_CHAR != rAnchor.GetAnchorId() )
+                    pCurrTextFrame = nullptr;
+            }
+        }
+        //calculate line number
+        if (pCurrTextFrame && pTextFrame)
+        {
+            if (!(pCurrTextFrame->IsInTab() || pCurrTextFrame->IsInFootnote()))
+            {
+                while( pTextFrame && pTextFrame != pCurrTextFrame )
+                {
+                    //check header/footer
+                    pFrame = pTextFrame;
+                    while ( pFrame && !pFrame->IsHeaderFrame() && !pFrame->IsFooterFrame() )
+                        pFrame = pFrame->GetUpper();
+                    if ( pFrame )
+                    {
+                        pTextFrame = static_cast< SwTextFrame*>(pTextFrame->GetNextContentFrame());
+                        continue;
+                    }
+                    if (!(pTextFrame->IsInTab() || pTextFrame->IsInFootnote() || pTextFrame->IsInFly()))
+                        nLineNum += pTextFrame->GetThisLines();
+                    pTextFrame = static_cast< SwTextFrame* >(pTextFrame ->GetNextContentFrame());
+                }
+                SwPaM* pCaret = pCursorShell->GetCursor();
+                if (!pCurrTextFrame->IsEmpty() && pCaret)
+                {
+                    assert(pCurrTextFrame->IsTextFrame());
+                    const SwPosition* pPoint = nullptr;
+                    if (pCurrTextFrame->IsInFly())
+                    {
+                        SwFlyFrame *pFlyFrame = pCurrTextFrame->FindFlyFrame();
+                        const SwFormatAnchor& rAnchor = pFlyFrame->GetFormat()->GetAnchor();
+                        pPoint = rAnchor.GetContentAnchor();
+                        SwContentNode *const pNode(pPoint->nNode.GetNode().GetContentNode());
+                        pCurrTextFrame = pNode
+                            ? static_cast<SwTextFrame*>(pNode->getLayoutFrame(
+                                        pCurrTextFrame->getRootFrame(), pPoint))
+                            : nullptr;
+                    }
+                    else
+                        pPoint = pCaret->GetPoint();
+                    if (pCurrTextFrame)
+                    {
+                        TextFrameIndex const nActPos(pCurrTextFrame->MapModelToViewPos(*pPoint));
+                        nLineNum += pCurrTextFrame->GetLineCount( nActPos );
+                    }
+                }
+                else
+                    ++nLineNum;
+            }
+        }
+
+        sValue += "line-number:" + OUString::number( nLineNum ) + ";";
+
+        SwFrame* pCurrCol=static_cast<SwFrame*>(pCurrFrame)->FindColFrame();
+
+        sValue += "column-number:";
+
+        int nCurrCol = 1;
+        if(pCurrCol!=nullptr)
+        {
+            //SwLayoutFrame* pParent = pCurrCol->GetUpper();
+            SwFrame* pCurrPageCol=static_cast<SwFrame*>(pCurrFrame)->FindColFrame();
+            while(pCurrPageCol && pCurrPageCol->GetUpper() && pCurrPageCol->GetUpper()->IsPageFrame())
+            {
+                pCurrPageCol = pCurrPageCol->GetUpper();
+            }
+
+            SwLayoutFrame* pParent = pCurrPageCol->GetUpper();
+
+            if(pParent!=nullptr)
+            {
+                SwFrame* pCol = pParent->Lower();
+                while(pCol&&(pCol!=pCurrPageCol))
+                {
+                    pCol = pCol->GetNext();
+                    ++nCurrCol;
+                }
+            }
+        }
+        sValue += OUString::number( nCurrCol ) + ";";
+
+        const SwFormatCol &rFormatCol=pCurrPage->GetAttrSet()->GetCol();
+        sal_uInt16 nColCount=rFormatCol.GetNumCols();
+        nColCount = nColCount>0?nColCount:1;
+        sValue += "total-columns:" + OUString::number( nColCount ) + ";";
+
+        SwSectionFrame* pCurrSctFrame=static_cast<SwFrame*>(pCurrFrame)->FindSctFrame();
+        if(pCurrSctFrame!=nullptr && pCurrSctFrame->GetSection()!=nullptr )
+        {
+            OUString sectionName = pCurrSctFrame->GetSection()->GetSectionName();
+
+            sectionName = sectionName.replaceFirst( "\\" , "\\\\" );
+            sectionName = sectionName.replaceFirst( "=" , "\\=" );
+            sectionName = sectionName.replaceFirst( ";" , "\\;" );
+            sectionName = sectionName.replaceFirst( "," , "\\," );
+            sectionName = sectionName.replaceFirst( ":" , "\\:" );
+
+            sValue += "section-name:" + sectionName + ";";
+
+            //section-columns-number
+
+            nCurrCol = 1;
+
+            if(pCurrCol!=nullptr)
+            {
+                SwLayoutFrame* pParent = pCurrCol->GetUpper();
+                if(pParent!=nullptr)
+                {
+                    SwFrame* pCol = pParent->Lower();
+                    while(pCol&&(pCol!=pCurrCol))
+                    {
+                        pCol = pCol->GetNext();
+                        nCurrCol +=1;
+                    }
+                }
+            }
+            sValue += "section-columns-number:" +
+                OUString::number( nCurrCol ) + ";";
+
+            //section-total-columns
+            const SwFormatCol &rFormatSctCol=pCurrSctFrame->GetAttrSet()->GetCol();
+            sal_uInt16 nSctColCount=rFormatSctCol.GetNumCols();
+            nSctColCount = nSctColCount>0?nSctColCount:1;
+            sValue += "section-total-columns:" +
+                OUString::number( nSctColCount ) + ";";
+        }
+
+        anyAttribute <<= sValue;
+    }
+    return anyAttribute;
+}
+
+sal_Int32 SAL_CALL SwAccessibleDocument::getBackground()
+{
+    SolarMutexGuard aGuard;
+    return sal_Int32(SW_MOD()->GetColorConfig().GetColorValue( ::svtools::DOCCOLOR ).nColor);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accdoc.hxx b/sw/source/core/access/accdoc.hxx
new file mode 100644
index 000000000..6f16cc585
--- /dev/null
+++ b/sw/source/core/access/accdoc.hxx
@@ -0,0 +1,173 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include "acccontext.hxx"
+#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
+#include <com/sun/star/accessibility/XAccessibleExtendedAttributes.hpp>
+#include "accselectionhelper.hxx"
+#include <vcl/window.hxx>
+
+// base class for SwAccessibleDocument (in this same header file) and
+// SwAccessiblePreview
+class SwAccessibleDocumentBase : public SwAccessibleContext
+{
+    css::uno::Reference< css::accessibility::XAccessible> mxParent;
+
+    VclPtr<vcl::Window> mpChildWin; // protected by solar mutex
+
+    using SwAccessibleFrame::SetVisArea;
+
+protected:
+    virtual ~SwAccessibleDocumentBase() override;
+
+public:
+    SwAccessibleDocumentBase(std::shared_ptr<SwAccessibleMap> const& pInitMap);
+
+    void SetVisArea();
+
+    void AddChild( vcl::Window *pWin, bool bFireEvent = true );
+    void RemoveChild( vcl::Window *pWin );
+
+    // XAccessibleContext
+
+    // Return the number of currently visible children.
+    virtual sal_Int32 SAL_CALL getAccessibleChildCount() override;
+
+    // Return the specified child or NULL if index is invalid.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleChild (sal_Int32 nIndex) override;
+
+    // Return a reference to the parent.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleParent() override;
+
+    // Return this objects index among the parents children.
+    virtual sal_Int32 SAL_CALL
+        getAccessibleIndexInParent() override;
+
+    // Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    virtual OUString SAL_CALL getAccessibleName() override;
+
+    // XAccessibleComponent
+    virtual sal_Bool SAL_CALL containsPoint(
+            const css::awt::Point& aPoint ) override;
+
+    virtual css::uno::Reference<
+        css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint(
+                const css::awt::Point& aPoint ) override;
+
+    virtual css::awt::Rectangle SAL_CALL getBounds() override;
+
+    virtual css::awt::Point SAL_CALL getLocation() override;
+
+    virtual css::awt::Point SAL_CALL getLocationOnScreen() override;
+
+    virtual css::awt::Size SAL_CALL getSize() override;
+};
+
+/**
+ * access to an accessible Writer document
+ */
+class SwAccessibleDocument : public SwAccessibleDocumentBase,
+                             public css::accessibility::XAccessibleSelection,
+                             public css::accessibility::XAccessibleExtendedAttributes
+{
+    // Implementation for XAccessibleSelection interface
+    SwAccessibleSelectionHelper maSelectionHelper;
+
+protected:
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets MULTISELECTABLE(1)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    virtual ~SwAccessibleDocument() override;
+
+public:
+    SwAccessibleDocument(std::shared_ptr<SwAccessibleMap> const& pInitMap);
+
+    DECL_LINK( WindowChildEventListener, VclWindowEvent&, void );
+
+    // XServiceInfo
+
+    // Returns an identifier for the implementation of this object.
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    // Return whether the specified service is supported by this class.
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    // Returns a list of all supported services.  In this case that is just
+    // the AccessibleContext service.
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XInterface
+
+    // XInterface is inherited through SwAccessibleContext and
+    // XAccessibleSelection. These methods are needed to avoid
+    // ambiguities.
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        const css::uno::Type& aType ) override;
+
+    virtual void SAL_CALL acquire(  ) noexcept override
+        { SwAccessibleContext::acquire(); };
+
+    virtual void SAL_CALL release(  ) noexcept override
+        { SwAccessibleContext::release(); };
+
+    // XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleSelection
+
+    virtual void SAL_CALL selectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual sal_Bool SAL_CALL isAccessibleChildSelected(
+        sal_Int32 nChildIndex ) override;
+    virtual void SAL_CALL clearAccessibleSelection(  ) override;
+    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    // index has to be treated as global child index.
+    virtual void SAL_CALL deselectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual css::uno::Any SAL_CALL getExtendedAttributes() override;
+
+    // thread safe C++ interface
+
+    // The object is not visible any longer and should be destroyed
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true) override;
+
+    // XAccessibleComponent
+    sal_Int32 SAL_CALL getBackground() override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accembedded.cxx b/sw/source/core/access/accembedded.cxx
new file mode 100644
index 000000000..1eb54cf25
--- /dev/null
+++ b/sw/source/core/access/accembedded.cxx
@@ -0,0 +1,121 @@
+/* -*- 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 <vcl/svapp.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <flyfrm.hxx>
+#include "accembedded.hxx"
+#include <cntfrm.hxx>
+#include <notxtfrm.hxx>
+#include <ndole.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::accessibility;
+
+constexpr OUStringLiteral sImplementationName = u"com.sun.star.comp.Writer.SwAccessibleEmbeddedObject";
+
+SwAccessibleEmbeddedObject::SwAccessibleEmbeddedObject(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwFlyFrame* pFlyFrame  ) :
+    SwAccessibleNoTextFrame( pInitMap, AccessibleRole::EMBEDDED_OBJECT, pFlyFrame )
+{
+}
+
+SwAccessibleEmbeddedObject::~SwAccessibleEmbeddedObject()
+{
+}
+
+// XInterface
+css::uno::Any SAL_CALL
+    SwAccessibleEmbeddedObject::queryInterface (const css::uno::Type & rType)
+{
+    css::uno::Any aReturn = SwAccessibleNoTextFrame::queryInterface (rType);
+    if ( ! aReturn.hasValue())
+        aReturn = ::cppu::queryInterface (rType,
+         static_cast< css::accessibility::XAccessibleExtendedAttributes* >(this) );
+    return aReturn;
+}
+
+void SAL_CALL
+    SwAccessibleEmbeddedObject::acquire()
+    noexcept
+{
+    SwAccessibleNoTextFrame::acquire ();
+}
+
+void SAL_CALL
+    SwAccessibleEmbeddedObject::release()
+    noexcept
+{
+    SwAccessibleNoTextFrame::release ();
+}
+
+OUString SAL_CALL SwAccessibleEmbeddedObject::getImplementationName()
+{
+    return sImplementationName;
+}
+
+sal_Bool SAL_CALL SwAccessibleEmbeddedObject::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL SwAccessibleEmbeddedObject::getSupportedServiceNames()
+{
+    return { "com.sun.star.text.AccessibleTextEmbeddedObject", sAccessibleServiceName };
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleEmbeddedObject::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XAccessibleExtendedAttributes
+css::uno::Any SAL_CALL SwAccessibleEmbeddedObject::getExtendedAttributes()
+{
+    SolarMutexGuard g;
+
+    css::uno::Any strRet;
+    OUString style;
+    SwFlyFrame* pFFrame = getFlyFrame();
+
+    if( pFFrame )
+    {
+        style = "style:";
+        SwContentFrame* pCFrame;
+        pCFrame = pFFrame->ContainsContent();
+        if( pCFrame )
+        {
+            assert(pCFrame->IsNoTextFrame());
+            SwContentNode *const pCNode = static_cast<SwNoTextFrame*>(pCFrame)->GetNode();
+            if( pCNode )
+            {
+                style += static_cast<SwOLENode*>(pCNode)->GetOLEObj().GetStyleString();
+            }
+        }
+        style += ";";
+    }
+    strRet <<= style;
+    return strRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accembedded.hxx b/sw/source/core/access/accembedded.hxx
new file mode 100644
index 000000000..ce82af9e2
--- /dev/null
+++ b/sw/source/core/access/accembedded.hxx
@@ -0,0 +1,72 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include "accnotextframe.hxx"
+
+#include <com/sun/star/accessibility/XAccessibleExtendedAttributes.hpp>
+
+class SwAccessibleEmbeddedObject : public   SwAccessibleNoTextFrame
+            , public css::accessibility::XAccessibleExtendedAttributes
+
+{
+protected:
+    virtual ~SwAccessibleEmbeddedObject() override;
+
+public:
+    SwAccessibleEmbeddedObject(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                                const SwFlyFrame* pFlyFrame );
+
+    // XInterface
+
+    virtual css::uno::Any SAL_CALL
+        queryInterface (const css::uno::Type & rType) override;
+
+    virtual void SAL_CALL
+        acquire()
+        noexcept override;
+
+    virtual void SAL_CALL
+        release()
+        noexcept override;
+
+    // XServiceInfo
+
+    // Returns an identifier for the implementation of this object.
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    // Return whether the specified service is supported by this class.
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    // Returns a list of all supported services.  In this case that is just
+    // the AccessibleContext service.
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleExtendedAttributes
+        virtual css::uno::Any SAL_CALL getExtendedAttributes() override ;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfootnote.cxx b/sw/source/core/access/accfootnote.cxx
new file mode 100644
index 000000000..6fb7ebca8
--- /dev/null
+++ b/sw/source/core/access/accfootnote.cxx
@@ -0,0 +1,120 @@
+/* -*- 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 <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <vcl/svapp.hxx>
+#include <ftnfrm.hxx>
+#include <fmtftn.hxx>
+#include <txtftn.hxx>
+#include <viewsh.hxx>
+#include <accmap.hxx>
+#include "accfootnote.hxx"
+#include <strings.hrc>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::accessibility;
+
+constexpr OUStringLiteral sImplementationNameFootnote
+    = u"com.sun.star.comp.Writer.SwAccessibleFootnoteView";
+constexpr OUStringLiteral sImplementationNameEndnote
+    = u"com.sun.star.comp.Writer.SwAccessibleEndnoteView";
+
+SwAccessibleFootnote::SwAccessibleFootnote(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        bool bIsEndnote,
+        const SwFootnoteFrame *pFootnoteFrame ) :
+    SwAccessibleContext( pInitMap,
+        bIsEndnote ? AccessibleRole::END_NOTE : AccessibleRole::FOOTNOTE,
+        pFootnoteFrame )
+{
+    TranslateId pResId = bIsEndnote ? STR_ACCESS_ENDNOTE_NAME
+                                   : STR_ACCESS_FOOTNOTE_NAME;
+
+    OUString sArg;
+    const SwTextFootnote *pTextFootnote =
+        static_cast< const SwFootnoteFrame *>( GetFrame() )->GetAttr();
+    if( pTextFootnote )
+    {
+        const SwDoc *pDoc = GetShell()->GetDoc();
+        sArg = pTextFootnote->GetFootnote().GetViewNumStr(*pDoc, pFootnoteFrame->getRootFrame());
+    }
+
+    SetName(GetResource(pResId, &sArg));
+}
+
+SwAccessibleFootnote::~SwAccessibleFootnote()
+{
+}
+
+OUString SAL_CALL SwAccessibleFootnote::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    TranslateId pResId = AccessibleRole::END_NOTE == GetRole()
+        ? STR_ACCESS_ENDNOTE_DESC
+        : STR_ACCESS_FOOTNOTE_DESC ;
+
+    OUString sArg;
+    const SwTextFootnote *pTextFootnote =
+        static_cast< const SwFootnoteFrame *>( GetFrame() )->GetAttr();
+    if( pTextFootnote )
+    {
+        const SwDoc *pDoc = GetMap()->GetShell()->GetDoc();
+        sArg = pTextFootnote->GetFootnote().GetViewNumStr(*pDoc, GetFrame()->getRootFrame());
+    }
+
+    return GetResource(pResId, &sArg);
+}
+
+OUString SAL_CALL SwAccessibleFootnote::getImplementationName()
+{
+    if( AccessibleRole::END_NOTE == GetRole() )
+        return sImplementationNameEndnote;
+    else
+        return sImplementationNameFootnote;
+}
+
+sal_Bool SAL_CALL SwAccessibleFootnote::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+Sequence< OUString > SAL_CALL SwAccessibleFootnote::getSupportedServiceNames()
+{
+    return { (AccessibleRole::END_NOTE == GetRole())?OUString("com.sun.star.text.AccessibleEndnoteView"):OUString("com.sun.star.text.AccessibleFootnoteView"),
+             sAccessibleServiceName };
+}
+
+Sequence< sal_Int8 > SAL_CALL SwAccessibleFootnote::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+bool SwAccessibleFootnote::IsEndnote( const SwFootnoteFrame *pFootnoteFrame )
+{
+    const SwTextFootnote *pTextFootnote = pFootnoteFrame ->GetAttr();
+    return pTextFootnote && pTextFootnote->GetFootnote().IsEndNote() ;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfootnote.hxx b/sw/source/core/access/accfootnote.hxx
new file mode 100644
index 000000000..ecc852cd5
--- /dev/null
+++ b/sw/source/core/access/accfootnote.hxx
@@ -0,0 +1,65 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <sal/types.h>
+#include "acccontext.hxx"
+
+class SwAccessibleMap;
+class SwFootnoteFrame;
+
+class SwAccessibleFootnote : public SwAccessibleContext
+{
+protected:
+    virtual ~SwAccessibleFootnote() override;
+
+public:
+    SwAccessibleFootnote( std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                          bool bIsEndnote,
+                          const SwFootnoteFrame *pFootnoteFrame );
+
+    // XAccessibleContext
+
+    /// Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object. */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class. */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service. */
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    static bool IsEndnote( const SwFootnoteFrame *pFrame );
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accframe.cxx b/sw/source/core/access/accframe.cxx
new file mode 100644
index 000000000..684953c6d
--- /dev/null
+++ b/sw/source/core/access/accframe.cxx
@@ -0,0 +1,479 @@
+/* -*- 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 <editeng/brushitem.hxx>
+#include <flyfrm.hxx>
+#include <sectfrm.hxx>
+#include <section.hxx>
+#include <viewsh.hxx>
+#include <viewopt.hxx>
+#include <frmatr.hxx>
+#include <pagefrm.hxx>
+#include <pagedesc.hxx>
+#include <fldbas.hxx>
+#include <accmap.hxx>
+#include "accfrmobjslist.hxx"
+#include "accfrmobjmap.hxx"
+#include "accframe.hxx"
+
+using namespace sw::access;
+
+// Regarding visibility (or in terms of accessibility: regarding the showing
+// state): A frame is visible and therefore contained in the tree if its frame
+// size overlaps with the visible area. The bounding box however is the
+// frame's paint area.
+sal_Int32 SwAccessibleFrame::GetChildCount( SwAccessibleMap& rAccMap,
+                                            const SwRect& rVisArea,
+                                            const SwFrame *pFrame,
+                                            bool bInPagePreview )
+{
+    sal_Int32 nCount = 0;
+
+    const SwAccessibleChildSList aVisList( rVisArea, *pFrame, rAccMap );
+
+    SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+    while( aIter != aVisList.end() )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        if( rLower.IsAccessible( bInPagePreview ) )
+        {
+            nCount++;
+        }
+        else if( rLower.GetSwFrame() )
+        {
+            // There are no unaccessible SdrObjects that count
+            nCount += GetChildCount( rAccMap,
+                                     rVisArea, rLower.GetSwFrame(),
+                                     bInPagePreview );
+        }
+        ++aIter;
+    }
+
+    return nCount;
+}
+
+SwAccessibleChild SwAccessibleFrame::GetChild(
+                                   SwAccessibleMap& rAccMap,
+                                   const SwRect& rVisArea,
+                                   const SwFrame& rFrame,
+                                   sal_Int32& rPos,
+                                   bool bInPagePreview )
+{
+    SwAccessibleChild aRet;
+
+    if( rPos >= 0 )
+    {
+        if( SwAccessibleChildMap::IsSortingRequired( rFrame ) )
+        {
+            // We need a sorted list here
+            const SwAccessibleChildMap aVisMap( rVisArea, rFrame, rAccMap );
+            SwAccessibleChildMap::const_iterator aIter( aVisMap.cbegin() );
+            while( aIter != aVisMap.cend() && !aRet.IsValid() )
+            {
+                const SwAccessibleChild& rLower = (*aIter).second;
+                if( rLower.IsAccessible( bInPagePreview ) )
+                {
+                    if( 0 == rPos )
+                        aRet = rLower;
+                    else
+                        rPos--;
+                }
+                else if( rLower.GetSwFrame() )
+                {
+                    // There are no unaccessible SdrObjects that count
+                    aRet = GetChild( rAccMap,
+                                     rVisArea, *(rLower.GetSwFrame()), rPos,
+                                     bInPagePreview );
+                }
+                ++aIter;
+            }
+        }
+        else
+        {
+            // The unsorted list is sorted enough, because it returns lower
+            // frames in the correct order.
+            const SwAccessibleChildSList aVisList( rVisArea, rFrame, rAccMap );
+            SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+            while( aIter != aVisList.end() && !aRet.IsValid() )
+            {
+                const SwAccessibleChild& rLower = *aIter;
+                if( rLower.IsAccessible( bInPagePreview ) )
+                {
+                    if( 0 == rPos )
+                        aRet = rLower;
+                    else
+                        rPos--;
+                }
+                else if( rLower.GetSwFrame() )
+                {
+                    // There are no unaccessible SdrObjects that count
+                    aRet = GetChild( rAccMap,
+                                     rVisArea, *(rLower.GetSwFrame()), rPos,
+                                     bInPagePreview );
+                }
+                ++aIter;
+            }
+        }
+    }
+
+    return aRet;
+}
+
+bool SwAccessibleFrame::GetChildIndex(
+                                   SwAccessibleMap& rAccMap,
+                                   const SwRect& rVisArea,
+                                   const SwFrame& rFrame,
+                                   const SwAccessibleChild& rChild,
+                                   sal_Int32& rPos,
+                                   bool bInPagePreview )
+{
+    bool bFound = false;
+
+    if( SwAccessibleChildMap::IsSortingRequired( rFrame ) )
+    {
+        // We need a sorted list here
+        const SwAccessibleChildMap aVisMap( rVisArea, rFrame, rAccMap );
+        SwAccessibleChildMap::const_iterator aIter( aVisMap.cbegin() );
+        while( aIter != aVisMap.cend() && !bFound )
+        {
+            const SwAccessibleChild& rLower = (*aIter).second;
+            if( rLower.IsAccessible( bInPagePreview ) )
+            {
+                if( rChild == rLower )
+                    bFound = true;
+                else
+                    rPos++;
+            }
+            else if( rLower.GetSwFrame() )
+            {
+                // There are no unaccessible SdrObjects that count
+                bFound = GetChildIndex( rAccMap,
+                                        rVisArea, *(rLower.GetSwFrame()), rChild,
+                                        rPos, bInPagePreview );
+            }
+            ++aIter;
+        }
+    }
+    else
+    {
+        // The unsorted list is sorted enough, because it returns lower
+        // frames in the correct order.
+
+        const SwAccessibleChildSList aVisList( rVisArea, rFrame, rAccMap );
+        SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+        while( aIter != aVisList.end() && !bFound )
+        {
+            const SwAccessibleChild& rLower = *aIter;
+            if( rLower.IsAccessible( bInPagePreview ) )
+            {
+                if( rChild == rLower )
+                    bFound = true;
+                else
+                    rPos++;
+            }
+            else if( rLower.GetSwFrame() )
+            {
+                // There are no unaccessible SdrObjects that count
+                bFound = GetChildIndex( rAccMap,
+                                        rVisArea, *(rLower.GetSwFrame()), rChild,
+                                        rPos, bInPagePreview );
+            }
+            ++aIter;
+        }
+    }
+
+    return bFound;
+}
+
+SwAccessibleChild SwAccessibleFrame::GetChildAtPixel( const SwRect& rVisArea,
+                                          const SwFrame& rFrame,
+                                          const Point& rPixPos,
+                                          bool bInPagePreview,
+                                          SwAccessibleMap& rAccMap )
+{
+    SwAccessibleChild aRet;
+
+    if( SwAccessibleChildMap::IsSortingRequired( rFrame ) )
+    {
+        // We need a sorted list here, and we have to reverse iterate,
+        // because objects in front should be returned.
+        const SwAccessibleChildMap aVisMap( rVisArea, rFrame, rAccMap );
+        SwAccessibleChildMap::const_reverse_iterator aRIter( aVisMap.crbegin() );
+        while( aRIter != aVisMap.crend() && !aRet.IsValid() )
+        {
+            const SwAccessibleChild& rLower = (*aRIter).second;
+            // A frame is returned if it's frame size is inside the visarea
+            // and the position is inside the frame's paint area.
+            if( rLower.IsAccessible( bInPagePreview ) )
+            {
+                SwRect aLogBounds( rLower.GetBounds( rAccMap ) );
+                if( !aLogBounds.IsEmpty() )
+                {
+                    tools::Rectangle aPixBounds( rAccMap.CoreToPixel( aLogBounds ) );
+                    if( aPixBounds.Contains( rPixPos ) )
+                        aRet = rLower;
+                }
+            }
+            else if( rLower.GetSwFrame() )
+            {
+                // There are no unaccessible SdrObjects that count
+                aRet = GetChildAtPixel( rVisArea, *(rLower.GetSwFrame()), rPixPos,
+                                        bInPagePreview, rAccMap );
+            }
+            ++aRIter;
+        }
+    }
+    else
+    {
+        // The unsorted list is sorted enough, because it returns lower
+        // frames in the correct order. Moreover, we can iterate forward,
+        // because the lowers don't overlap!
+        const SwAccessibleChildSList aVisList( rVisArea, rFrame, rAccMap );
+        SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+        while( aIter != aVisList.end() && !aRet.IsValid() )
+        {
+            const SwAccessibleChild& rLower = *aIter;
+            // A frame is returned if it's frame size is inside the visarea
+            // and the position is inside the frame's paint area.
+            if( rLower.IsAccessible( bInPagePreview ) )
+            {
+                SwRect aLogBounds( rLower.GetBounds( rAccMap ) );
+                if( !aLogBounds.IsEmpty() )
+                {
+                    tools::Rectangle aPixBounds( rAccMap.CoreToPixel( aLogBounds ) );
+                    if( aPixBounds.Contains( rPixPos ) )
+                        aRet = rLower;
+                }
+            }
+            else if( rLower.GetSwFrame() )
+            {
+                // There are no unaccessible SdrObjects that count
+                aRet = GetChildAtPixel( rVisArea, *(rLower.GetSwFrame()), rPixPos,
+                                   bInPagePreview, rAccMap );
+            }
+            ++aIter;
+        }
+    }
+
+    return aRet;
+}
+
+void SwAccessibleFrame::GetChildren( SwAccessibleMap& rAccMap,
+                                     const SwRect& rVisArea,
+                                     const SwFrame& rFrame,
+                                     std::list< SwAccessibleChild >& rChildren,
+                                     bool bInPagePreview )
+{
+    if( SwAccessibleChildMap::IsSortingRequired( rFrame ) )
+    {
+        // We need a sorted list here
+        const SwAccessibleChildMap aVisMap( rVisArea, rFrame, rAccMap );
+        SwAccessibleChildMap::const_iterator aIter( aVisMap.cbegin() );
+        while( aIter != aVisMap.cend() )
+        {
+            const SwAccessibleChild& rLower = (*aIter).second;
+            if( rLower.IsAccessible( bInPagePreview ) )
+            {
+                rChildren.push_back( rLower );
+            }
+            else if( rLower.GetSwFrame() )
+            {
+                // There are no unaccessible SdrObjects that count
+                GetChildren( rAccMap, rVisArea, *(rLower.GetSwFrame()),
+                             rChildren, bInPagePreview );
+            }
+            ++aIter;
+        }
+    }
+    else
+    {
+        // The unsorted list is sorted enough, because it returns lower
+        // frames in the correct order.
+        const SwAccessibleChildSList aVisList( rVisArea, rFrame, rAccMap );
+        SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+        while( aIter != aVisList.end() )
+        {
+            const SwAccessibleChild& rLower = *aIter;
+            if( rLower.IsAccessible( bInPagePreview ) )
+            {
+                rChildren.push_back( rLower );
+            }
+            else if( rLower.GetSwFrame() )
+            {
+                // There are no unaccessible SdrObjects that count
+                GetChildren( rAccMap, rVisArea, *(rLower.GetSwFrame()),
+                             rChildren, bInPagePreview );
+            }
+            ++aIter;
+        }
+    }
+}
+
+SwRect SwAccessibleFrame::GetBounds( const SwAccessibleMap& rAccMap,
+                                     const SwFrame *pFrame )
+{
+    if( !pFrame )
+        pFrame = GetFrame();
+
+    SwAccessibleChild aFrame( pFrame );
+    SwRect aBounds( aFrame.GetBounds( rAccMap ).Intersection( maVisArea ) );
+    return aBounds;
+}
+
+bool SwAccessibleFrame::IsEditable( SwViewShell const *pVSh ) const
+{
+    const SwFrame *pFrame = GetFrame();
+    if( !pFrame )
+        return false;
+
+    OSL_ENSURE( pVSh, "no view shell" );
+    if( pVSh && (pVSh->GetViewOptions()->IsReadonly() ||
+                 pVSh->IsPreview()) )
+        return false;
+
+    if( !pFrame->IsRootFrame() && pFrame->IsProtected() )
+        return false;
+
+    return true;
+}
+
+bool SwAccessibleFrame::IsOpaque( SwViewShell const *pVSh ) const
+{
+    SwAccessibleChild aFrame( GetFrame() );
+    if( !aFrame.GetSwFrame() )
+        return false;
+
+    OSL_ENSURE( pVSh, "no view shell" );
+    if( !pVSh )
+        return false;
+
+    const SwViewOption *pVOpt = pVSh->GetViewOptions();
+    do
+    {
+        const SwFrame *pFrame = aFrame.GetSwFrame();
+        if( pFrame->IsRootFrame() )
+            return true;
+
+        if( pFrame->IsPageFrame() && !pVOpt->IsPageBack() )
+            return false;
+
+        const SvxBrushItem &rBack = pFrame->GetAttrSet()->GetBackground();
+        if( !rBack.GetColor().IsTransparent() ||
+             rBack.GetGraphicPos() != GPOS_NONE )
+            return true;
+
+        // If a fly frame has a transparent background color, we have to consider the background.
+        // But a background color "no fill"/"auto fill" should *not* be considered.
+        if( pFrame->IsFlyFrame() &&
+            rBack.GetColor().IsTransparent() &&
+            rBack.GetColor() != COL_TRANSPARENT
+          )
+            return true;
+
+        if( pFrame->IsSctFrame() )
+        {
+            const SwSection* pSection = static_cast<const SwSectionFrame*>(pFrame)->GetSection();
+            if( pSection && ( SectionType::ToxHeader == pSection->GetType() ||
+                SectionType::ToxContent == pSection->GetType() ) &&
+                !pVOpt->IsReadonly() &&
+                SwViewOption::IsIndexShadings() )
+                return true;
+        }
+        if( pFrame->IsFlyFrame() )
+            aFrame = static_cast<const SwFlyFrame*>(pFrame)->GetAnchorFrame();
+        else
+            aFrame = pFrame->GetUpper();
+    } while( aFrame.GetSwFrame() && !aFrame.IsAccessible( IsInPagePreview() ) );
+
+    return false;
+}
+
+SwAccessibleFrame::SwAccessibleFrame( const SwRect& rVisArea,
+                                      const SwFrame *pF,
+                                      bool bIsPagePreview ) :
+    maVisArea( rVisArea ),
+    mpFrame( pF ),
+    mbIsInPagePreview( bIsPagePreview )
+{
+    assert(mpFrame);
+}
+
+SwAccessibleFrame::~SwAccessibleFrame()
+{
+}
+
+const SwFrame* SwAccessibleFrame::GetParent( const SwAccessibleChild& rFrameOrObj,
+                                           bool bInPagePreview )
+{
+    return rFrameOrObj.GetParent( bInPagePreview );
+}
+
+OUString SwAccessibleFrame::GetFormattedPageNumber() const
+{
+    sal_uInt16 nPageNum = GetFrame()->GetVirtPageNum();
+    SvxNumType nFormat = GetFrame()->FindPageFrame()->GetPageDesc()
+                              ->GetNumType().GetNumberingType();
+    if( SVX_NUM_NUMBER_NONE == nFormat )
+        nFormat = SVX_NUM_ARABIC;
+
+    OUString sRet( FormatNumber( nPageNum, nFormat ) );
+    return sRet;
+}
+
+sal_Int32 SwAccessibleFrame::GetChildCount( SwAccessibleMap& rAccMap ) const
+{
+    return GetChildCount( rAccMap, maVisArea, mpFrame, IsInPagePreview() );
+}
+
+sw::access::SwAccessibleChild SwAccessibleFrame::GetChild(
+                                                SwAccessibleMap& rAccMap,
+                                                sal_Int32 nPos ) const
+{
+    return SwAccessibleFrame::GetChild( rAccMap, maVisArea, *mpFrame, nPos, IsInPagePreview() );
+}
+
+sal_Int32 SwAccessibleFrame::GetChildIndex( SwAccessibleMap& rAccMap,
+                                            const sw::access::SwAccessibleChild& rChild ) const
+{
+    sal_Int32 nPos = 0;
+    return GetChildIndex( rAccMap, maVisArea, *mpFrame, rChild, nPos, IsInPagePreview() )
+           ? nPos
+           : -1;
+}
+
+sw::access::SwAccessibleChild SwAccessibleFrame::GetChildAtPixel(
+                                                const Point& rPos,
+                                                SwAccessibleMap& rAccMap ) const
+{
+    return GetChildAtPixel( maVisArea, *mpFrame, rPos, IsInPagePreview(), rAccMap );
+}
+
+void SwAccessibleFrame::GetChildren( SwAccessibleMap& rAccMap,
+                                     std::list< sw::access::SwAccessibleChild >& rChildren ) const
+{
+    GetChildren( rAccMap, maVisArea, *mpFrame, rChildren, IsInPagePreview() );
+}
+
+bool SwAccessibleFrame::IsShowing( const SwAccessibleMap& rAccMap,
+                                       const sw::access::SwAccessibleChild& rFrameOrObj ) const
+{
+    return IsShowing( rFrameOrObj.GetBox( rAccMap ) );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accframe.hxx b/sw/source/core/access/accframe.hxx
new file mode 100644
index 000000000..6f2dff0ae
--- /dev/null
+++ b/sw/source/core/access/accframe.hxx
@@ -0,0 +1,163 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRAME_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRAME_HXX
+
+#include <swrect.hxx>
+
+#include <sal/types.h>
+#include <rtl/ustring.hxx>
+
+#include <list>
+#include "accfrmobj.hxx"
+
+class SwAccessibleMap;
+class SwFrame;
+class SwViewShell;
+
+// Any method of this class must be called with an acquired solar mutex!
+
+class SwAccessibleFrame
+{
+    SwRect maVisArea;
+    const SwFrame* mpFrame;
+    const bool mbIsInPagePreview;
+
+protected:
+    // #i77106# - method needs to be called by new class <SwAccessibleTableColHeaders>
+    static sal_Int32 GetChildCount( SwAccessibleMap& rAccMap,
+                                    const SwRect& rVisArea,
+                                    const SwFrame *pFrame,
+                                    bool bInPagePreviewr );
+
+// private:
+    static sw::access::SwAccessibleChild GetChild( SwAccessibleMap& rAccMap,
+                                                   const SwRect& rVisArea,
+                                                   const SwFrame& rFrame,
+                                                   sal_Int32& rPos,
+                                                   bool bInPagePreview);
+
+    static bool GetChildIndex( SwAccessibleMap& rAccMap,
+                               const SwRect& rVisArea,
+                               const SwFrame& rFrame,
+                               const sw::access::SwAccessibleChild& rChild,
+                               sal_Int32& rPos,
+                               bool bInPagePreview );
+
+    static sw::access::SwAccessibleChild GetChildAtPixel( const SwRect& rVisArea,
+                                                          const SwFrame& rFrame,
+                                                          const Point& rPos,
+                                                          bool bInPagePreview,
+                                                          SwAccessibleMap& rAccMap );
+
+    static void GetChildren( SwAccessibleMap& rAccMap,
+                             const SwRect& rVisArea,
+                             const SwFrame& rFrame,
+                             std::list< sw::access::SwAccessibleChild >& rChildren,
+                             bool bInPagePreview );
+
+    bool IsEditable( SwViewShell const *pVSh ) const;
+
+    bool IsOpaque( SwViewShell const *pVSh ) const;
+
+public:
+    bool IsShowing( const SwAccessibleMap& rAccMap,
+                        const sw::access::SwAccessibleChild& rFrameOrObj ) const;
+    inline bool IsShowing( const SwRect& rFrame ) const;
+    inline bool IsShowing( const SwAccessibleMap& rAccMap ) const;
+
+protected:
+    bool IsInPagePreview() const
+    {
+        return mbIsInPagePreview;
+    }
+
+    void ClearFrame()
+    {
+        mpFrame = nullptr;
+    }
+
+    SwAccessibleFrame( const SwRect& rVisArea,
+                       const SwFrame *pFrame,
+                       bool bIsPagePreview );
+    virtual ~SwAccessibleFrame();
+public:
+    // Return the SwFrame this context is attached to.
+    const SwFrame* GetFrame() const { return mpFrame; };
+
+    static const SwFrame* GetParent( const sw::access::SwAccessibleChild& rFrameOrObj,
+                                   bool bInPagePreview );
+
+    sal_Int32 GetChildIndex( SwAccessibleMap& rAccMap,
+                             const sw::access::SwAccessibleChild& rChild ) const;
+
+protected:
+    // Return the bounding box of the frame clipped to the visible area.
+    // If no frame is specified, use this' frame.
+    SwRect GetBounds( const SwAccessibleMap& rAccMap,
+                      const SwFrame *pFrame = nullptr );
+
+    // Return the upper that has a context attached. This might be
+    // another one than the immediate upper.
+    inline const SwFrame *GetParent() const;
+
+    // Return the lower count or the nth lower, there the lowers have a
+    // not be same one as the SwFrame's lowers
+    sal_Int32 GetChildCount( SwAccessibleMap& rAccMap ) const;
+    sw::access::SwAccessibleChild GetChild( SwAccessibleMap& rAccMap,
+                                            sal_Int32 nPos ) const;
+    sw::access::SwAccessibleChild GetChildAtPixel( const Point& rPos,
+                                                   SwAccessibleMap& rAccMap ) const;
+    void GetChildren( SwAccessibleMap& rAccMap,
+                      std::list< sw::access::SwAccessibleChild >& rChildren ) const;
+
+    void SetVisArea( const SwRect& rNewVisArea )
+    {
+        maVisArea = rNewVisArea;
+    }
+
+    const SwRect& GetVisArea() const
+    {
+        return maVisArea;
+    }
+
+    OUString GetFormattedPageNumber() const;
+};
+
+inline bool SwAccessibleFrame::IsShowing( const SwRect& rFrame ) const
+{
+    return !rFrame.IsEmpty() && rFrame.Overlaps( maVisArea );
+}
+
+inline bool SwAccessibleFrame::IsShowing( const SwAccessibleMap& rAccMap ) const
+{
+    sw::access::SwAccessibleChild aFrameOrObj( GetFrame() );
+    return IsShowing( rAccMap, aFrameOrObj );
+}
+
+inline const SwFrame *SwAccessibleFrame::GetParent() const
+{
+    sw::access::SwAccessibleChild aFrameOrObj( GetFrame() );
+    return GetParent( aFrameOrObj, IsInPagePreview()  );
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accframebase.cxx b/sw/source/core/access/accframebase.cxx
new file mode 100644
index 000000000..c9a1ea73e
--- /dev/null
+++ b/sw/source/core/access/accframebase.cxx
@@ -0,0 +1,373 @@
+/* -*- 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 <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <frmfmt.hxx>
+#include <flyfrm.hxx>
+#include <fmtcntnt.hxx>
+#include <ndindex.hxx>
+#include <fesh.hxx>
+#include <hints.hxx>
+#include <accmap.hxx>
+#include "accframebase.hxx"
+
+#include <crsrsh.hxx>
+#include <notxtfrm.hxx>
+#include <ndtxt.hxx>
+#include <undobj.hxx>
+#include <fmtanchr.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+bool SwAccessibleFrameBase::IsSelected()
+{
+    bool bRet = false;
+
+    assert(GetMap());
+    const SwViewShell *pVSh = GetMap()->GetShell();
+    assert(pVSh);
+    if( auto pFESh = dynamic_cast<const SwFEShell*>(pVSh) )
+    {
+        const SwFrame *pFlyFrame = pFESh->GetSelectedFlyFrame();
+        if( pFlyFrame == GetFrame() )
+            bRet = true;
+    }
+
+    return bRet;
+}
+
+void SwAccessibleFrameBase::GetStates(
+        ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SwAccessibleContext::GetStates( rStateSet );
+
+    const SwViewShell *pVSh = GetMap()->GetShell();
+    assert(pVSh);
+
+    if (dynamic_cast<const SwFEShell*>(pVSh))
+    {
+        // SELECTABLE
+        rStateSet.AddState(AccessibleStateType::SELECTABLE);
+        // FOCUSABLE
+        rStateSet.AddState(AccessibleStateType::FOCUSABLE);
+    }
+
+    // SELECTED and FOCUSED
+    if( IsSelected() )
+    {
+        rStateSet.AddState( AccessibleStateType::SELECTED );
+        SAL_WARN_IF(!m_bIsSelected, "sw.a11y", "bSelected out of sync");
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+
+        vcl::Window *pWin = GetWindow();
+        if( pWin && pWin->HasFocus() )
+            rStateSet.AddState( AccessibleStateType::FOCUSED );
+    }
+    if( GetSelectedState() )
+        rStateSet.AddState( AccessibleStateType::SELECTED );
+}
+
+SwNodeType SwAccessibleFrameBase::GetNodeType( const SwFlyFrame *pFlyFrame )
+{
+    SwNodeType nType = SwNodeType::Text;
+    if( pFlyFrame->Lower() )
+    {
+        if( pFlyFrame->Lower()->IsNoTextFrame() )
+        {
+            const SwNoTextFrame *const pContentFrame =
+                static_cast<const SwNoTextFrame *>(pFlyFrame->Lower());
+            nType = pContentFrame->GetNode()->GetNodeType();
+        }
+    }
+    else
+    {
+        const SwFrameFormat *pFrameFormat = pFlyFrame->GetFormat();
+        const SwFormatContent& rContent = pFrameFormat->GetContent();
+        const SwNodeIndex *pNdIdx = rContent.GetContentIdx();
+        if( pNdIdx )
+        {
+            const SwContentNode *pCNd =
+                (pNdIdx->GetNodes())[pNdIdx->GetIndex()+1]->GetContentNode();
+            if( pCNd )
+                nType = pCNd->GetNodeType();
+        }
+    }
+
+    return nType;
+}
+
+SwAccessibleFrameBase::SwAccessibleFrameBase(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        sal_Int16 nInitRole,
+        const SwFlyFrame* pFlyFrame  ) :
+    SwAccessibleContext( pInitMap, nInitRole, pFlyFrame ),
+    m_bIsSelected( false )
+{
+    const SwFrameFormat* pFrameFormat = pFlyFrame->GetFormat();
+    if(pFrameFormat)
+        StartListening(const_cast<SwFrameFormat*>(pFrameFormat)->GetNotifier());
+
+    SetName( pFrameFormat->GetName() );
+
+    m_bIsSelected = IsSelected();
+}
+
+void SwAccessibleFrameBase::InvalidateCursorPos_()
+{
+    bool bNewSelected = IsSelected();
+    bool bOldSelected;
+
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bOldSelected = m_bIsSelected;
+        m_bIsSelected = bNewSelected;
+    }
+
+    if( bNewSelected )
+    {
+        // remember that object as the one that has the caret. This is
+        // necessary to notify that object if the cursor leaves it.
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+
+    if( bOldSelected == bNewSelected )
+        return;
+
+    vcl::Window *pWin = GetWindow();
+    if( pWin && pWin->HasFocus() && bNewSelected )
+        FireStateChangedEvent( AccessibleStateType::FOCUSED, bNewSelected );
+    if( pWin && pWin->HasFocus() && !bNewSelected )
+        FireStateChangedEvent( AccessibleStateType::FOCUSED, bNewSelected );
+    if(!bNewSelected)
+        return;
+
+    uno::Reference< XAccessible > xParent( GetWeakParent() );
+    if( xParent.is() )
+    {
+        SwAccessibleContext *pAcc =
+            static_cast <SwAccessibleContext *>( xParent.get() );
+
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED;
+        uno::Reference< XAccessible > xChild(this);
+        aEvent.NewValue <<= xChild;
+        pAcc->FireAccessibleEvent( aEvent );
+    }
+}
+
+void SwAccessibleFrameBase::InvalidateFocus_()
+{
+    vcl::Window *pWin = GetWindow();
+    if( !pWin )
+        return;
+
+    bool bSelected;
+
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bSelected = m_bIsSelected;
+    }
+    assert(bSelected && "focus object should be selected");
+
+    FireStateChangedEvent( AccessibleStateType::FOCUSED,
+                           pWin->HasFocus() && bSelected );
+}
+
+bool SwAccessibleFrameBase::HasCursor()
+{
+    std::scoped_lock aGuard( m_Mutex );
+    return m_bIsSelected;
+}
+
+SwAccessibleFrameBase::~SwAccessibleFrameBase()
+{
+}
+
+void SwAccessibleFrameBase::Notify(const SfxHint& rHint)
+{
+    if(rHint.GetId() == SfxHintId::Dying)
+    {
+        EndListeningAll();
+    }
+    else if (rHint.GetId() == SfxHintId::SwLegacyModify)
+    {
+        auto pLegacyModifyHint = static_cast<const sw::LegacyModifyHint*>(&rHint);
+        const sal_uInt16 nWhich = pLegacyModifyHint->GetWhich();
+        const SwFlyFrame* pFlyFrame = static_cast<const SwFlyFrame*>(GetFrame());
+        if(nWhich == RES_NAME_CHANGED && pFlyFrame)
+        {
+            const SwFrameFormat* pFrameFormat = pFlyFrame->GetFormat();
+
+            const OUString sOldName( GetName() );
+            assert( !pLegacyModifyHint->m_pOld ||
+                    static_cast<const SwStringMsgPoolItem *>(pLegacyModifyHint->m_pOld)->GetString() == GetName());
+
+            SetName( pFrameFormat->GetName() );
+            assert( !pLegacyModifyHint->m_pNew ||
+                    static_cast<const SwStringMsgPoolItem *>(pLegacyModifyHint->m_pNew)->GetString() == GetName());
+
+            if( sOldName != GetName() )
+            {
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::NAME_CHANGED;
+                aEvent.OldValue <<= sOldName;
+                aEvent.NewValue <<= GetName();
+                FireAccessibleEvent( aEvent );
+            }
+        }
+    }
+}
+
+void SwAccessibleFrameBase::Dispose(bool bRecursive, bool bCanSkipInvisible)
+{
+    SolarMutexGuard aGuard;
+    EndListeningAll();
+    SwAccessibleContext::Dispose(bRecursive, bCanSkipInvisible);
+}
+
+//Get the selection cursor of the document.
+SwPaM* SwAccessibleFrameBase::GetCursor()
+{
+    // get the cursor shell; if we don't have any, we don't have a
+    // cursor/selection either
+    SwPaM* pCursor = nullptr;
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell != nullptr && !pCursorShell->IsTableMode() )
+    {
+        SwFEShell *pFESh = dynamic_cast<SwFEShell*>( pCursorShell);
+        if( !pFESh ||
+            !(pFESh->IsFrameSelected() || pFESh->IsObjSelected() > 0) )
+        {
+            // get the selection, and test whether it affects our text node
+            pCursor = pCursorShell->GetCursor( false /* ??? */ );
+        }
+    }
+
+    return pCursor;
+}
+
+//Return the selected state of the object.
+//when the object's anchor are in the selection cursor, we should return true.
+bool SwAccessibleFrameBase::GetSelectedState( )
+{
+    SolarMutexGuard aGuard;
+
+    if(GetMap()->IsDocumentSelAll())
+    {
+        return true;
+    }
+
+    // SELECTED.
+    SwFlyFrame* pFlyFrame = getFlyFrame();
+    const SwFrameFormat *pFrameFormat = pFlyFrame->GetFormat();
+    const SwFormatAnchor& rAnchor = pFrameFormat->GetAnchor();
+    const SwPosition *pPos = rAnchor.GetContentAnchor();
+    if( !pPos )
+        return false;
+    int nIndex = pPos->nContent.GetIndex();
+    if( pPos->nNode.GetNode().GetTextNode() )
+    {
+        SwPaM* pCursor = GetCursor();
+        if( pCursor != nullptr )
+        {
+            const SwTextNode* pNode = pPos->nNode.GetNode().GetTextNode();
+            SwNodeOffset nHere = pNode->GetIndex();
+
+            // iterate over ring
+            SwPaM* pRingStart = pCursor;
+            do
+            {
+                // ignore, if no mark
+                if( pCursor->HasMark() )
+                {
+                    // check whether nHere is 'inside' pCursor
+                    SwPosition* pStart = pCursor->Start();
+                    SwNodeOffset nStartIndex = pStart->nNode.GetIndex();
+                    SwPosition* pEnd = pCursor->End();
+                    SwNodeOffset nEndIndex = pEnd->nNode.GetIndex();
+                    if( ( nHere >= nStartIndex ) && (nHere <= nEndIndex)  )
+                    {
+                        if( rAnchor.GetAnchorId() == RndStdIds::FLY_AS_CHAR )
+                        {
+                            if( ((nHere == nStartIndex) && (nIndex >= pStart->nContent.GetIndex())) || (nHere > nStartIndex) )
+                                if( ((nHere == nEndIndex) && (nIndex < pEnd->nContent.GetIndex())) || (nHere < nEndIndex) )
+                                    return true;
+                        }
+                        else if( rAnchor.GetAnchorId() == RndStdIds::FLY_AT_PARA )
+                        {
+                            if (IsSelectFrameAnchoredAtPara(*pPos, *pStart, *pEnd))
+                                return true;
+                        }
+                        else if (rAnchor.GetAnchorId() == RndStdIds::FLY_AT_CHAR)
+                        {
+                            if (IsDestroyFrameAnchoredAtChar(*pPos, *pStart, *pEnd))
+                            {
+                                return true;
+                            }
+                        }
+                        break;
+                    }
+                    // else: this PaM doesn't point to this paragraph
+                }
+                // else: this PaM is collapsed and doesn't select anything
+
+                // next PaM in ring
+                pCursor = pCursor->GetNext();
+            }
+            while( pCursor != pRingStart );
+        }
+    }
+    return false;
+}
+
+SwFlyFrame* SwAccessibleFrameBase::getFlyFrame() const
+{
+    SwFlyFrame* pFlyFrame = nullptr;
+
+    const SwFrame* pFrame = GetFrame();
+    assert(pFrame);
+    if( pFrame->IsFlyFrame() )
+    {
+        pFlyFrame = static_cast<SwFlyFrame*>( const_cast<SwFrame*>( pFrame ) );
+    }
+
+    return pFlyFrame;
+}
+
+bool SwAccessibleFrameBase::SetSelectedState( bool )
+{
+    bool bParaSelected = GetSelectedState() || IsSelected();
+
+    if (m_isSelectedInDoc != bParaSelected)
+    {
+        m_isSelectedInDoc = bParaSelected;
+        FireStateChangedEvent( AccessibleStateType::SELECTED, bParaSelected );
+        return true;
+    }
+    return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accframebase.hxx b/sw/source/core/access/accframebase.hxx
new file mode 100644
index 000000000..12af1f52d
--- /dev/null
+++ b/sw/source/core/access/accframebase.hxx
@@ -0,0 +1,65 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRAMEBASE_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRAMEBASE_HXX
+
+#include "acccontext.hxx"
+#include <svl/listener.hxx>
+#include <ndtyp.hxx>
+
+class SwFlyFrame;
+
+class SwAccessibleFrameBase : public SwAccessibleContext, public SvtListener
+{
+    bool    m_bIsSelected;    // protected by base class mutex
+    bool    IsSelected();
+
+protected:
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets SELECTABLE(1), SELECTED(+),
+    // FOCUSABLE(1) and FOCUSED(+)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+    SwFlyFrame* getFlyFrame() const;
+    bool GetSelectedState( );
+    SwPaM* GetCursor();
+
+    virtual void InvalidateCursorPos_() override;
+    virtual void InvalidateFocus_() override;
+
+    virtual ~SwAccessibleFrameBase() override;
+    virtual void Notify(const SfxHint&) override;
+
+public:
+    SwAccessibleFrameBase(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                           sal_Int16 nInitRole,
+                           const SwFlyFrame *pFlyFrame );
+
+    virtual bool HasCursor() override;   // required by map to remember that object
+
+    static SwNodeType GetNodeType( const SwFlyFrame *pFlyFrame );
+
+    // The object is not visible any longer and should be destroyed
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true) override;
+    virtual bool SetSelectedState( bool bSelected ) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfrmobj.cxx b/sw/source/core/access/accfrmobj.cxx
new file mode 100644
index 000000000..c09c0215e
--- /dev/null
+++ b/sw/source/core/access/accfrmobj.cxx
@@ -0,0 +1,408 @@
+/* -*- 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 "accfrmobj.hxx"
+
+#include <accmap.hxx>
+#include "acccontext.hxx"
+
+#include <viewsh.hxx>
+#include <rootfrm.hxx>
+#include <flyfrm.hxx>
+#include <pagefrm.hxx>
+#include <cellfrm.hxx>
+#include <swtable.hxx>
+#include <dflyobj.hxx>
+#include <frmfmt.hxx>
+#include <fmtanchr.hxx>
+#include <dcontact.hxx>
+
+#include <vcl/window.hxx>
+
+namespace sw::access {
+
+SwAccessibleChild::SwAccessibleChild()
+    : mpFrame( nullptr )
+    , mpDrawObj( nullptr )
+    , mpWindow( nullptr )
+{}
+
+SwAccessibleChild::SwAccessibleChild( const SdrObject* pDrawObj )
+    : mpFrame( nullptr )
+    , mpDrawObj( nullptr )
+    , mpWindow( nullptr )
+{
+    Init( pDrawObj );
+}
+
+SwAccessibleChild::SwAccessibleChild( const SwFrame* pFrame )
+    : mpFrame( nullptr )
+    , mpDrawObj( nullptr )
+    , mpWindow( nullptr )
+{
+    Init( pFrame );
+}
+
+SwAccessibleChild::SwAccessibleChild( vcl::Window* pWindow )
+    : mpFrame( nullptr )
+    , mpDrawObj( nullptr )
+    , mpWindow( nullptr )
+{
+    Init( pWindow );
+}
+
+SwAccessibleChild::SwAccessibleChild( const SwFrame* pFrame,
+                                      const SdrObject* pDrawObj,
+                                      vcl::Window* pWindow )
+    : mpFrame( nullptr )
+    , mpDrawObj( nullptr )
+    , mpWindow( nullptr )
+{
+    if ( pFrame )
+    {
+        Init( pFrame );
+    }
+    else if ( pDrawObj )
+    {
+        Init( pDrawObj );
+    }
+    else if ( pWindow )
+    {
+        Init( pWindow );
+    }
+    OSL_ENSURE( (!pFrame || pFrame == mpFrame) &&
+            (!pDrawObj || pDrawObj == mpDrawObj) &&
+            (!pWindow || pWindow == mpWindow),
+            "invalid frame/object/window combination" );
+
+}
+
+SwAccessibleChild::~SwAccessibleChild() = default;
+
+void SwAccessibleChild::Init( const SdrObject* pDrawObj )
+{
+    mpDrawObj = pDrawObj;
+    const SwVirtFlyDrawObj* pFlyDrawObj = dynamic_cast<const SwVirtFlyDrawObj*>(mpDrawObj);
+    mpFrame = pFlyDrawObj ? pFlyDrawObj->GetFlyFrame() : nullptr;
+    mpWindow = nullptr;
+}
+
+void SwAccessibleChild::Init( const SwFrame* pFrame )
+{
+    mpFrame = pFrame;
+    mpDrawObj = mpFrame && mpFrame->IsFlyFrame()
+                ? static_cast < const SwFlyFrame * >( mpFrame )->GetVirtDrawObj()
+                : nullptr;
+    mpWindow = nullptr;
+}
+
+void SwAccessibleChild::Init( vcl::Window* pWindow )
+{
+    mpWindow = pWindow;
+    mpFrame = nullptr;
+    mpDrawObj = nullptr;
+}
+
+bool SwAccessibleChild::IsAccessible( bool bPagePreview ) const
+{
+    bool bRet( false );
+
+    if ( mpFrame )
+    {
+        bRet = mpFrame->IsAccessibleFrame() &&
+               ( !mpFrame->IsCellFrame() ||
+                 static_cast<const SwCellFrame *>( mpFrame )->GetTabBox()->GetSttNd() != nullptr ) &&
+               !mpFrame->IsInCoveredCell() &&
+               ( bPagePreview ||
+                 !mpFrame->IsPageFrame() );
+    }
+    else if ( mpDrawObj )
+    {
+        bRet = true;
+    }
+    else if ( mpWindow )
+    {
+        bRet = true;
+    }
+
+    return bRet;
+}
+
+bool SwAccessibleChild::IsBoundAsChar() const
+{
+    bool bRet( false );
+
+    if ( mpFrame )
+    {
+        bRet = mpFrame->IsFlyFrame() &&
+               static_cast< const SwFlyFrame *>(mpFrame)->IsFlyInContentFrame();
+    }
+    else if ( mpDrawObj )
+    {
+        const SwFrameFormat* pFrameFormat = ::FindFrameFormat( mpDrawObj );
+        bRet = pFrameFormat
+               && (RndStdIds::FLY_AS_CHAR == pFrameFormat->GetAnchor().GetAnchorId());
+    }
+    else if ( mpWindow )
+    {
+        bRet = false;
+    }
+
+    return bRet;
+}
+
+SwAccessibleChild& SwAccessibleChild::operator=( const SdrObject* pDrawObj )
+{
+    Init( pDrawObj );
+    return *this;
+}
+
+SwAccessibleChild& SwAccessibleChild::operator=( const SwFrame* pFrame )
+{
+    Init( pFrame );
+    return *this;
+}
+
+SwAccessibleChild& SwAccessibleChild::operator=( vcl::Window* pWindow )
+{
+    Init( pWindow );
+    return *this;
+}
+
+bool SwAccessibleChild::operator==( const SwAccessibleChild& r ) const
+{
+    return mpFrame == r.mpFrame &&
+           mpDrawObj == r.mpDrawObj &&
+           mpWindow == r.mpWindow;
+}
+
+bool SwAccessibleChild::IsValid() const
+{
+    return mpFrame != nullptr ||
+           mpDrawObj != nullptr ||
+           mpWindow != nullptr;
+}
+
+bool SwAccessibleChild::IsVisibleChildrenOnly() const
+{
+    bool bRet( false );
+
+    if ( !mpFrame )
+    {
+        bRet = true;
+    }
+    else
+    {
+        bRet = mpFrame->IsRootFrame() ||
+               !( mpFrame->IsTabFrame() ||
+                  mpFrame->IsInTab() ||
+                  ( IsBoundAsChar() &&
+                    static_cast<const SwFlyFrame*>(mpFrame)->GetAnchorFrame()->IsInTab() ) );
+    }
+
+    return bRet;
+}
+
+SwRect SwAccessibleChild::GetBox( const SwAccessibleMap& rAccMap ) const
+{
+    SwRect aBox;
+
+    if ( mpFrame )
+    {
+        if ( mpFrame->IsPageFrame() &&
+             static_cast< const SwPageFrame * >( mpFrame )->IsEmptyPage() )
+        {
+            aBox = SwRect( mpFrame->getFrameArea().Left(), mpFrame->getFrameArea().Top()-1, 1, 1 );
+        }
+        else if ( mpFrame->IsTabFrame() )
+        {
+            aBox = mpFrame->getFrameArea();
+            aBox.Intersection( mpFrame->GetUpper()->getFrameArea() );
+        }
+        else
+        {
+            aBox = mpFrame->getFrameArea();
+        }
+    }
+    else if( mpDrawObj )
+    {
+        const SwContact* const pContact = ::GetUserCall(mpDrawObj);
+        // assume that a) the SwVirt* objects that don't have this are handled
+        // by the mpFrame case above b) for genuine SdrObject this must be set
+        // if it's connected to layout
+        assert(dynamic_cast<SwDrawContact const*>(pContact));
+        SwPageFrame const*const pPage(const_cast<SwAnchoredObject *>(
+            pContact->GetAnchoredObj(mpDrawObj))->FindPageFrameOfAnchor());
+        if (pPage) // may end up here with partial layout -> not visible
+        {
+            aBox = SwRect( mpDrawObj->GetCurrentBoundRect() );
+            // tdf#91260 drawing object may be partially off-page
+            aBox.Intersection(pPage->getFrameArea());
+        }
+    }
+    else if ( mpWindow )
+    {
+        vcl::Window *pWin = rAccMap.GetShell()->GetWin();
+        if (pWin)
+        {
+            aBox = SwRect( pWin->PixelToLogic(
+                                            tools::Rectangle( mpWindow->GetPosPixel(),
+                                                       mpWindow->GetSizePixel() ) ) );
+        }
+    }
+
+    return aBox;
+}
+
+SwRect SwAccessibleChild::GetBounds( const SwAccessibleMap& rAccMap ) const
+{
+    SwRect aBound;
+
+    if( mpFrame )
+    {
+        if( mpFrame->IsPageFrame() &&
+            static_cast< const SwPageFrame * >( mpFrame )->IsEmptyPage() )
+        {
+            aBound = SwRect( mpFrame->getFrameArea().Left(), mpFrame->getFrameArea().Top()-1, 0, 0 );
+        }
+        else
+            aBound = mpFrame->GetPaintArea();
+    }
+    else if( mpDrawObj )
+    {
+        aBound = GetBox( rAccMap );
+    }
+    else if ( mpWindow )
+    {
+        aBound = GetBox( rAccMap );
+    }
+
+    return aBound;
+}
+
+bool SwAccessibleChild::AlwaysIncludeAsChild() const
+{
+    bool bAlwaysIncludedAsChild( false );
+
+    if ( mpWindow )
+    {
+        bAlwaysIncludedAsChild = true;
+    }
+
+    return bAlwaysIncludedAsChild;
+}
+
+const SwFrame* SwAccessibleChild::GetParent( const bool bInPagePreview ) const
+{
+    const SwFrame* pParent( nullptr );
+
+    if ( mpFrame )
+    {
+        if( mpFrame->IsFlyFrame() )
+        {
+            const SwFlyFrame* pFly = static_cast< const SwFlyFrame *>( mpFrame );
+            if( pFly->IsFlyInContentFrame() )
+            {
+                // For RndStdIds::FLY_AS_CHAR the parent is the anchor
+                pParent = pFly->GetAnchorFrame();
+                OSL_ENSURE( SwAccessibleChild( pParent ).IsAccessible( bInPagePreview ),
+                        "parent is not accessible" );
+            }
+            else
+            {
+                // In any other case the parent is the root frm
+                // (in page preview, the page frame)
+                if( bInPagePreview )
+                    pParent = pFly->FindPageFrame();
+                else
+                    pParent = pFly->getRootFrame();
+            }
+        }
+        else
+        {
+            SwAccessibleChild aUpper( mpFrame->GetUpper() );
+            while( aUpper.GetSwFrame() && !aUpper.IsAccessible(bInPagePreview) )
+            {
+                aUpper = aUpper.GetSwFrame()->GetUpper();
+            }
+            pParent = aUpper.GetSwFrame();
+        }
+    }
+    else if( mpDrawObj )
+    {
+        const SwDrawContact *pContact =
+            static_cast< const SwDrawContact* >( GetUserCall( mpDrawObj ) );
+        OSL_ENSURE( pContact, "sdr contact is missing" );
+        if( pContact )
+        {
+            const SwFrameFormat *pFrameFormat = pContact->GetFormat();
+            OSL_ENSURE( pFrameFormat, "frame format is missing" );
+            if( pFrameFormat && RndStdIds::FLY_AS_CHAR == pFrameFormat->GetAnchor().GetAnchorId() )
+            {
+                // For RndStdIds::FLY_AS_CHAR the parent is the anchor
+                pParent = pContact->GetAnchorFrame();
+                OSL_ENSURE( SwAccessibleChild( pParent ).IsAccessible( bInPagePreview ),
+                        "parent is not accessible" );
+
+            }
+            else
+            {
+                // In any other case the parent is the root frm
+                SwFrame const*const pAnchor(pContact->GetAnchorFrame());
+                if (pAnchor) // null if object removed from layout
+                {
+                    if (bInPagePreview)
+                        pParent = pAnchor->FindPageFrame();
+                    else
+                        pParent = pAnchor->getRootFrame();
+                }
+            }
+        }
+    }
+    else if ( mpWindow )
+    {
+        css::uno::Reference < css::accessibility::XAccessible > xAcc =
+                                                    mpWindow->GetAccessible();
+        if ( xAcc.is() )
+        {
+            css::uno::Reference < css::accessibility::XAccessibleContext > xAccContext =
+                                                xAcc->getAccessibleContext();
+            if ( xAccContext.is() )
+            {
+                css::uno::Reference < css::accessibility::XAccessible > xAccParent =
+                                                xAccContext->getAccessibleParent();
+                if ( xAccParent.is() )
+                {
+                    SwAccessibleContext* pAccParentImpl =
+                                dynamic_cast< SwAccessibleContext *>( xAccParent.get() );
+                    if ( pAccParentImpl )
+                    {
+                        pParent = pAccParentImpl->GetFrame();
+                    }
+                }
+            }
+        }
+    }
+
+    return pParent;
+}
+
+} // namespace sw::access
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfrmobj.hxx b/sw/source/core/access/accfrmobj.hxx
new file mode 100644
index 000000000..cb5fdfb7b
--- /dev/null
+++ b/sw/source/core/access/accfrmobj.hxx
@@ -0,0 +1,89 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRMOBJ_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRMOBJ_HXX
+
+#include <vcl/vclptr.hxx>
+
+class SwAccessibleMap;
+class SwFrame;
+class SdrObject;
+namespace vcl { class Window; }
+class SwRect;
+
+namespace sw::access {
+
+class SwAccessibleChild
+{
+    public:
+        SwAccessibleChild();
+        ~SwAccessibleChild();
+        explicit SwAccessibleChild( const SdrObject* pDrawObj );
+        explicit SwAccessibleChild( const SwFrame* pFrame );
+        explicit SwAccessibleChild( vcl::Window* pWindow );
+        SwAccessibleChild( const SwFrame* pFrame,
+                           const SdrObject* pDrawObj,
+                           vcl::Window* pWindow );
+
+        SwAccessibleChild(SwAccessibleChild const &) = default;
+        SwAccessibleChild(SwAccessibleChild &&) = default;
+        SwAccessibleChild & operator =(SwAccessibleChild const &) = default;
+        SwAccessibleChild & operator =(SwAccessibleChild &&) = default;
+
+        SwAccessibleChild& operator=( const SdrObject* pDrawObj );
+        SwAccessibleChild& operator=( const SwFrame* pFrame );
+        SwAccessibleChild& operator=( vcl::Window* pWindow );
+
+        bool operator==( const SwAccessibleChild& r ) const;
+
+        bool IsValid() const;
+
+        const SwFrame* GetSwFrame() const { return mpFrame; }
+        const SdrObject* GetDrawObject() const { return mpDrawObj; }
+        vcl::Window* GetWindow() const { return mpWindow; }
+
+        const SwFrame* GetParent( const bool bInPagePreview ) const;
+
+        bool IsAccessible( bool bPagePreview ) const;
+        bool IsBoundAsChar() const;
+
+        bool IsVisibleChildrenOnly() const;
+        SwRect GetBox( const SwAccessibleMap& rAccMap ) const;
+        SwRect GetBounds( const SwAccessibleMap& rAccMap ) const;
+
+        /** indicating, if accessible child is included even, if the corresponding
+            object is not visible. */
+        bool AlwaysIncludeAsChild() const;
+
+    private:
+        const SwFrame* mpFrame;
+        const SdrObject* mpDrawObj;
+        VclPtr<vcl::Window> mpWindow;
+
+        void Init( const SdrObject* pDrawObj );
+        void Init( const SwFrame* pFrame );
+        void Init( vcl::Window* pWindow );
+};
+
+} // eof of namespace sw::access
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfrmobjmap.cxx b/sw/source/core/access/accfrmobjmap.cxx
new file mode 100644
index 000000000..5da8dad1a
--- /dev/null
+++ b/sw/source/core/access/accfrmobjmap.cxx
@@ -0,0 +1,149 @@
+/* -*- 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 "accfrmobjmap.hxx"
+#include <accmap.hxx>
+#include "acccontext.hxx"
+
+#include <viewsh.hxx>
+#include <doc.hxx>
+#include <IDocumentDrawModelAccess.hxx>
+#include <pagefrm.hxx>
+#include <sortedobjs.hxx>
+#include <anchoredobject.hxx>
+
+#include <svx/svdobj.hxx>
+
+using namespace sw::access;
+
+SwAccessibleChildMap::SwAccessibleChildMap( const SwRect& rVisArea,
+                                            const SwFrame& rFrame,
+                                            SwAccessibleMap& rAccMap )
+    : mnHellId( rAccMap.GetShell()->GetDoc()->getIDocumentDrawModelAccess().GetHellId() )
+    , mnControlsId( rAccMap.GetShell()->GetDoc()->getIDocumentDrawModelAccess().GetControlsId() )
+{
+    const bool bVisibleChildrenOnly = SwAccessibleChild( &rFrame ).IsVisibleChildrenOnly();
+
+    sal_uInt32 nPos = 0;
+    SwAccessibleChild aLower( rFrame.GetLower() );
+    while( aLower.GetSwFrame() )
+    {
+        if ( !bVisibleChildrenOnly ||
+             aLower.AlwaysIncludeAsChild() ||
+             aLower.GetBox( rAccMap ).Overlaps( rVisArea ) )
+        {
+            insert( nPos++, SwAccessibleChildMapKey::TEXT, aLower );
+        }
+
+        aLower = aLower.GetSwFrame()->GetNext();
+    }
+
+    if ( rFrame.IsPageFrame() )
+    {
+        OSL_ENSURE( bVisibleChildrenOnly, "page frame within tab frame???" );
+        const SwPageFrame *pPgFrame =
+            static_cast< const SwPageFrame * >( &rFrame );
+        const SwSortedObjs *pObjs = pPgFrame->GetSortedObjs();
+        if ( pObjs )
+        {
+            for(const SwAnchoredObject* pObj : *pObjs)
+            {
+                aLower = pObj->GetDrawObj();
+                if ( aLower.GetBox( rAccMap ).Overlaps( rVisArea ) )
+                {
+                    insert( aLower.GetDrawObject(), aLower );
+                }
+            }
+        }
+    }
+    else if( rFrame.IsTextFrame() )
+    {
+        const SwSortedObjs *pObjs = rFrame.GetDrawObjs();
+        if ( pObjs )
+        {
+            for(const SwAnchoredObject* pObj : *pObjs)
+            {
+                aLower = pObj->GetDrawObj();
+                if ( aLower.IsBoundAsChar() &&
+                     ( !bVisibleChildrenOnly ||
+                       aLower.AlwaysIncludeAsChild() ||
+                       aLower.GetBox( rAccMap ).Overlaps( rVisArea ) ) )
+                {
+                    insert( aLower.GetDrawObject(), aLower );
+                }
+            }
+        }
+
+        {
+            ::rtl::Reference < SwAccessibleContext > xAccImpl =
+                                rAccMap.GetContextImpl( &rFrame, false );
+            if( xAccImpl.is() )
+            {
+                SwAccessibleContext* pAccImpl = xAccImpl.get();
+                if ( pAccImpl &&
+                     pAccImpl->HasAdditionalAccessibleChildren() )
+                {
+                    std::vector< vcl::Window* > aAdditionalChildren;
+                    pAccImpl->GetAdditionalAccessibleChildren( &aAdditionalChildren );
+
+                    sal_Int32 nCounter( 0 );
+                    for ( const auto& rpChild : aAdditionalChildren )
+                    {
+                        aLower = rpChild;
+                        insert( ++nCounter, SwAccessibleChildMapKey::XWINDOW, aLower );
+                    }
+                }
+            }
+        }
+    }
+}
+
+std::pair< SwAccessibleChildMap::iterator, bool > SwAccessibleChildMap::insert(
+                                                const sal_uInt32 nPos,
+                                                const SwAccessibleChildMapKey::LayerId eLayerId,
+                                                const SwAccessibleChild& rLower )
+{
+    SwAccessibleChildMapKey aKey( eLayerId, nPos );
+    return emplace( aKey, rLower );
+}
+
+std::pair< SwAccessibleChildMap::iterator, bool > SwAccessibleChildMap::insert(
+                                                const SdrObject *pObj,
+                                                const SwAccessibleChild& rLower )
+{
+    const SdrLayerID nLayer = pObj->GetLayer();
+    SwAccessibleChildMapKey::LayerId eLayerId =
+                    (mnHellId == nLayer)
+                    ? SwAccessibleChildMapKey::HELL
+                    : ( (mnControlsId == nLayer)
+                        ? SwAccessibleChildMapKey::CONTROLS
+                        : SwAccessibleChildMapKey::HEAVEN );
+    SwAccessibleChildMapKey aKey( eLayerId, pObj->GetOrdNum() );
+    return emplace( aKey, rLower );
+}
+
+bool SwAccessibleChildMap::IsSortingRequired( const SwFrame& rFrame )
+{
+    return ( rFrame.IsPageFrame() &&
+             static_cast< const SwPageFrame& >( rFrame ).GetSortedObjs() ) ||
+           ( rFrame.IsTextFrame() &&
+             rFrame.GetDrawObjs() );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfrmobjmap.hxx b/sw/source/core/access/accfrmobjmap.hxx
new file mode 100644
index 000000000..ed4ecafec
--- /dev/null
+++ b/sw/source/core/access/accfrmobjmap.hxx
@@ -0,0 +1,126 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRMOBJMAP_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRMOBJMAP_HXX
+
+#include <tools/gen.hxx>
+#include <svx/svdtypes.hxx>
+#include "accfrmobj.hxx"
+#include <map>
+
+class SwAccessibleMap;
+class SwRect;
+class SwFrame;
+class SdrObject;
+
+class SwAccessibleChildMapKey
+{
+public:
+    enum LayerId { INVALID, HELL, TEXT, HEAVEN, CONTROLS, XWINDOW };
+
+    SwAccessibleChildMapKey()
+        : m_eLayerId( INVALID )
+        , m_nOrdNum( 0 )
+        , m_nPosNum( 0, 0 )
+    {}
+
+    SwAccessibleChildMapKey( LayerId eId, sal_uInt32 nOrd )
+        : m_eLayerId( eId )
+        , m_nOrdNum( nOrd )
+        , m_nPosNum( 0, 0 )
+    {}
+
+    bool operator()( const SwAccessibleChildMapKey& r1,
+                            const SwAccessibleChildMapKey& r2 ) const
+    {
+        if(r1.m_eLayerId == r2.m_eLayerId)
+        {
+            if(r1.m_nPosNum == r2.m_nPosNum)
+                return r1.m_nOrdNum < r2.m_nOrdNum;
+            else
+            {
+                if(r1.m_nPosNum.getY() == r2.m_nPosNum.getY())
+                    return r1.m_nPosNum.getX() < r2.m_nPosNum.getX();
+                else
+                    return r1.m_nPosNum.getY() < r2.m_nPosNum.getY();
+            }
+        }
+        else
+            return r1.m_eLayerId < r2.m_eLayerId;
+    }
+
+    /* MT: Need to get this position parameter stuff in dev300 somehow...
+    //This methods are used to insert an object to the map, adding a position parameter.
+    std::pair< iterator, bool > insert( sal_uInt32 nOrd, Point nPos,
+                                          const SwFrameOrObj& rLower );
+    std::pair< iterator, bool > insert( const SdrObject *pObj,
+                                          const SwFrameOrObj& rLower,
+                                          const SwDoc *pDoc,
+                                          Point nPos);
+    */
+
+private:
+    LayerId m_eLayerId;
+    sal_uInt32 m_nOrdNum;
+    Point m_nPosNum;
+};
+
+
+class SwAccessibleChildMap
+{
+public:
+    typedef SwAccessibleChildMapKey                                             key_type;
+    typedef sw::access::SwAccessibleChild                                       mapped_type;
+    typedef std::pair<const key_type,mapped_type>                               value_type;
+    typedef SwAccessibleChildMapKey                                             key_compare;
+    typedef std::map<key_type,mapped_type,key_compare>::iterator                iterator;
+    typedef std::map<key_type,mapped_type,key_compare>::const_iterator          const_iterator;
+    typedef std::map<key_type,mapped_type,key_compare>::const_reverse_iterator  const_reverse_iterator;
+
+private:
+    const SdrLayerID mnHellId;
+    const SdrLayerID mnControlsId;
+    std::map<key_type,mapped_type,key_compare> maMap;
+
+    std::pair< iterator, bool > insert( const sal_uInt32 nPos,
+                                          const SwAccessibleChildMapKey::LayerId eLayerId,
+                                          const sw::access::SwAccessibleChild& rLower );
+    std::pair< iterator, bool > insert( const SdrObject* pObj,
+                                          const sw::access::SwAccessibleChild& rLower );
+
+public:
+    SwAccessibleChildMap( const SwRect& rVisArea,
+                          const SwFrame& rFrame,
+                          SwAccessibleMap& rAccMap );
+
+    static bool IsSortingRequired( const SwFrame& rFrame );
+
+    const_iterator cbegin() const { return maMap.cbegin(); }
+    const_iterator cend() const { return maMap.cend(); }
+    const_reverse_iterator crbegin() const { return maMap.crbegin(); }
+    const_reverse_iterator crend() const { return maMap.crend(); }
+
+    template<class... Args>
+    std::pair<iterator,bool> emplace(Args&&... args) { return maMap.emplace(std::forward<Args>(args)...); }
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfrmobjslist.cxx b/sw/source/core/access/accfrmobjslist.cxx
new file mode 100644
index 000000000..c62987798
--- /dev/null
+++ b/sw/source/core/access/accfrmobjslist.cxx
@@ -0,0 +1,163 @@
+/* -*- 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 "accfrmobjslist.hxx"
+#include <accmap.hxx>
+#include "acccontext.hxx"
+
+#include <pagefrm.hxx>
+#include <sortedobjs.hxx>
+#include <anchoredobject.hxx>
+
+using namespace ::sw::access;
+
+SwAccessibleChildSList_const_iterator::SwAccessibleChildSList_const_iterator(
+    const SwAccessibleChildSList& rLst,
+    SwAccessibleMap& rAccMap )
+    : m_rList( rLst ),
+      m_aCurr( m_rList.GetFrame().GetLower() ),
+      m_nNextObj( 0 )
+{
+    if( !m_aCurr.GetSwFrame() )
+    {
+        const SwFrame& rFrame = m_rList.GetFrame();
+        if( rFrame.IsPageFrame() )
+        {
+            const SwPageFrame& rPgFrame = static_cast< const SwPageFrame& >( rFrame );
+            const SwSortedObjs *pObjs = rPgFrame.GetSortedObjs();
+            if( pObjs && pObjs->size() )
+            {
+                m_aCurr = (*pObjs)[m_nNextObj++]->GetDrawObj();
+            }
+        }
+        else if( rFrame.IsTextFrame() )
+        {
+            const SwSortedObjs *pObjs = rFrame.GetDrawObjs();
+            if ( pObjs && pObjs->size() )
+            {
+                m_aCurr = (*pObjs)[m_nNextObj++]->GetDrawObj();
+                while( m_aCurr.IsValid() && !m_aCurr.IsBoundAsChar() )
+                {
+                    m_aCurr = (m_nNextObj < pObjs->size())
+                            ? (*pObjs)[m_nNextObj++]->GetDrawObj()
+                            : static_cast< const SdrObject *>( nullptr );
+                }
+            }
+            if ( !m_aCurr.IsValid() )
+            {
+                ::rtl::Reference < SwAccessibleContext > xAccImpl =
+                                    rAccMap.GetContextImpl( &rFrame, false );
+                if( xAccImpl.is() )
+                {
+                    SwAccessibleContext* pAccImpl = xAccImpl.get();
+                    m_aCurr = SwAccessibleChild( pAccImpl->GetAdditionalAccessibleChild( 0 ) );
+                    ++m_nNextObj;
+                }
+            }
+        }
+    }
+
+    if( m_rList.IsVisibleChildrenOnly() )
+    {
+        // Find the first visible
+        while( m_aCurr.IsValid() &&
+               !m_aCurr.AlwaysIncludeAsChild() &&
+               !m_aCurr.GetBox( rAccMap ).Overlaps( m_rList.GetVisArea() ) )
+        {
+            next();
+        }
+    }
+}
+
+SwAccessibleChildSList_const_iterator& SwAccessibleChildSList_const_iterator::next()
+{
+    bool bNextTaken( true );
+    if( m_aCurr.GetDrawObject() || m_aCurr.GetWindow() )
+    {
+        bNextTaken = false;
+    }
+    else if( m_aCurr.GetSwFrame() )
+    {
+        m_aCurr = m_aCurr.GetSwFrame()->GetNext();
+        if( !m_aCurr.GetSwFrame() )
+        {
+            bNextTaken = false;
+        }
+    }
+
+    if( !bNextTaken )
+    {
+        const SwFrame& rFrame = m_rList.GetFrame();
+        if( rFrame.IsPageFrame() )
+        {
+            const SwPageFrame& rPgFrame = static_cast< const SwPageFrame& >( rFrame );
+            const SwSortedObjs *pObjs = rPgFrame.GetSortedObjs();
+            m_aCurr = ( pObjs && m_nNextObj < pObjs->size() )
+                    ? (*pObjs)[m_nNextObj++]->GetDrawObj()
+                    : static_cast< const SdrObject *>( nullptr );
+        }
+        else if( rFrame.IsTextFrame() )
+        {
+            const SwSortedObjs* pObjs = rFrame.GetDrawObjs();
+            const size_t nObjsCount = pObjs ? pObjs->size() : 0;
+            m_aCurr = ( pObjs && m_nNextObj < nObjsCount )
+                    ? (*pObjs)[m_nNextObj++]->GetDrawObj()
+                    : static_cast< const SdrObject *>( nullptr );
+            while( m_aCurr.IsValid() && !m_aCurr.IsBoundAsChar() )
+            {
+                m_aCurr = ( m_nNextObj < nObjsCount )
+                        ? (*pObjs)[m_nNextObj++]->GetDrawObj()
+                        : static_cast< const SdrObject *>( nullptr );
+            }
+            if ( !m_aCurr.IsValid() )
+            {
+                ::rtl::Reference < SwAccessibleContext > xAccImpl =
+                                    m_rList.GetAccMap().GetContextImpl( &rFrame, false );
+                if( xAccImpl.is() )
+                {
+                    SwAccessibleContext* pAccImpl = xAccImpl.get();
+                    m_aCurr = SwAccessibleChild( pAccImpl->GetAdditionalAccessibleChild( m_nNextObj - nObjsCount ) );
+                    ++m_nNextObj;
+                }
+            }
+        }
+    }
+
+    return *this;
+}
+
+SwAccessibleChildSList_const_iterator& SwAccessibleChildSList_const_iterator::next_visible()
+{
+    next();
+    while( m_aCurr.IsValid() &&
+           !m_aCurr.AlwaysIncludeAsChild() &&
+           !m_aCurr.GetBox( m_rList.GetAccMap() ).Overlaps( m_rList.GetVisArea() ) )
+    {
+        next();
+    }
+
+    return *this;
+}
+
+SwAccessibleChildSList_const_iterator& SwAccessibleChildSList_const_iterator::operator++()
+{
+    return m_rList.IsVisibleChildrenOnly() ? next_visible() : next();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accfrmobjslist.hxx b/sw/source/core/access/accfrmobjslist.hxx
new file mode 100644
index 000000000..9df293d71
--- /dev/null
+++ b/sw/source/core/access/accfrmobjslist.hxx
@@ -0,0 +1,131 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRMOBJSLIST_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCFRMOBJSLIST_HXX
+
+#include "accfrmobj.hxx"
+#include <swrect.hxx>
+
+class SwAccessibleMap;
+class SwAccessibleChildSList;
+
+class SwAccessibleChildSList_const_iterator
+{
+private:
+    friend class SwAccessibleChildSList;
+
+    const SwAccessibleChildSList& m_rList;    // The frame we are iterating over
+    sw::access::SwAccessibleChild m_aCurr;    // The current object
+    size_t m_nNextObj;                        // The index of the current sdr object
+
+    SwAccessibleChildSList_const_iterator( const SwAccessibleChildSList& rLst )
+        : m_rList( rLst )
+        , m_nNextObj( 0 )
+    {}
+
+    SwAccessibleChildSList_const_iterator( const SwAccessibleChildSList& rLst,
+                                           SwAccessibleMap& rAccMap );
+
+    SwAccessibleChildSList_const_iterator& next();
+    SwAccessibleChildSList_const_iterator& next_visible();
+
+public:
+    bool operator==( const SwAccessibleChildSList_const_iterator& r ) const
+    {
+        return m_aCurr == r.m_aCurr;
+    }
+
+    bool operator!=(
+            const SwAccessibleChildSList_const_iterator& r ) const
+    {
+        return !(*this == r);
+    }
+
+    SwAccessibleChildSList_const_iterator& operator++();
+
+    const sw::access::SwAccessibleChild& operator*() const
+    {
+        return m_aCurr;
+    }
+};
+
+// An iterator to iterate over a frame's child in any order
+class SwAccessibleChildSList
+{
+    const SwRect maVisArea;
+    const SwFrame& mrFrame;
+    const bool mbVisibleChildrenOnly;
+    SwAccessibleMap& mrAccMap;
+
+public:
+    typedef SwAccessibleChildSList_const_iterator const_iterator;
+
+    SwAccessibleChildSList( const SwFrame& rFrame,
+                                   SwAccessibleMap& rAccMap )
+        : maVisArea()
+        , mrFrame( rFrame )
+        , mbVisibleChildrenOnly( false )
+        , mrAccMap( rAccMap )
+    {}
+
+    SwAccessibleChildSList( const SwRect& rVisArea,
+                                   const SwFrame& rFrame,
+                                   SwAccessibleMap& rAccMap )
+        : maVisArea( rVisArea )
+        , mrFrame( rFrame )
+        , mbVisibleChildrenOnly( sw::access::SwAccessibleChild( &rFrame ).IsVisibleChildrenOnly() )
+        , mrAccMap( rAccMap )
+    {
+    }
+
+    const_iterator begin() const
+    {
+        return SwAccessibleChildSList_const_iterator( *this, mrAccMap );
+    }
+
+    const_iterator end() const
+    {
+        return SwAccessibleChildSList_const_iterator( *this );
+    }
+
+    const SwFrame& GetFrame() const
+    {
+        return mrFrame;
+    }
+
+    bool IsVisibleChildrenOnly() const
+    {
+        return mbVisibleChildrenOnly;
+    }
+
+    const SwRect& GetVisArea() const
+    {
+        return maVisArea;
+    }
+
+    SwAccessibleMap& GetAccMap() const
+    {
+        return mrAccMap;
+    }
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accgraphic.cxx b/sw/source/core/access/accgraphic.cxx
new file mode 100644
index 000000000..d6d115d78
--- /dev/null
+++ b/sw/source/core/access/accgraphic.cxx
@@ -0,0 +1,75 @@
+/* -*- 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 <vcl/svapp.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <flyfrm.hxx>
+#include <fmturl.hxx>
+#include "accgraphic.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::accessibility;
+
+SwAccessibleGraphic::SwAccessibleGraphic(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwFlyFrame* pFlyFrame  ) :
+    SwAccessibleNoTextFrame( pInitMap, AccessibleRole::GRAPHIC, pFlyFrame )
+{
+}
+
+SwAccessibleGraphic::~SwAccessibleGraphic()
+{
+}
+
+OUString SAL_CALL SwAccessibleGraphic::getImplementationName()
+{
+    return "com.sun.star.comp.Writer.SwAccessibleGraphic";
+}
+
+sal_Bool SAL_CALL SwAccessibleGraphic::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+Sequence< OUString > SAL_CALL SwAccessibleGraphic::getSupportedServiceNames()
+{
+    return { "com.sun.star.text.AccessibleTextGraphicObject", sAccessibleServiceName };
+}
+
+Sequence< sal_Int8 > SAL_CALL SwAccessibleGraphic::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+//  Return this object's role.
+sal_Int16 SAL_CALL SwAccessibleGraphic::getAccessibleRole()
+{
+    SolarMutexGuard g;
+
+    SwFormatURL aURL( static_cast<const SwLayoutFrame*>(GetFrame())->GetFormat()->GetURL() );
+
+    if (aURL.GetMap())
+        return AccessibleRole::IMAGE_MAP;
+    return AccessibleRole::GRAPHIC;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accgraphic.hxx b/sw/source/core/access/accgraphic.hxx
new file mode 100644
index 000000000..dc21201bc
--- /dev/null
+++ b/sw/source/core/access/accgraphic.hxx
@@ -0,0 +1,57 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCGRAPHIC_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCGRAPHIC_HXX
+
+#include "accnotextframe.hxx"
+
+class SwAccessibleGraphic : public  SwAccessibleNoTextFrame
+{
+protected:
+    virtual ~SwAccessibleGraphic() override;
+
+public:
+    SwAccessibleGraphic(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                         const SwFlyFrame *pFlyFrame );
+
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object. */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class. */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service. */
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+    /// Return this object's role.
+    virtual sal_Int16 SAL_CALL getAccessibleRole() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accheaderfooter.cxx b/sw/source/core/access/accheaderfooter.cxx
new file mode 100644
index 000000000..d07b2c802
--- /dev/null
+++ b/sw/source/core/access/accheaderfooter.cxx
@@ -0,0 +1,112 @@
+/* -*- 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 <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <vcl/svapp.hxx>
+#include <hffrm.hxx>
+#include "accheaderfooter.hxx"
+#include <strings.hrc>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::accessibility;
+
+constexpr OUStringLiteral sImplementationNameHeader
+    = u"com.sun.star.comp.Writer.SwAccessibleHeaderView";
+constexpr OUStringLiteral sImplementationNameFooter
+    = u"com.sun.star.comp.Writer.SwAccessibleFooterView";
+
+SwAccessibleHeaderFooter::SwAccessibleHeaderFooter(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwHeaderFrame* pHdFrame    ) :
+    SwAccessibleContext( pInitMap, AccessibleRole::HEADER, pHdFrame )
+{
+    OUString sArg( OUString::number( pHdFrame->GetPhyPageNum() ) );
+    SetName( GetResource( STR_ACCESS_HEADER_NAME, &sArg ) );
+}
+
+SwAccessibleHeaderFooter::SwAccessibleHeaderFooter(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwFooterFrame* pFtFrame    ) :
+    SwAccessibleContext( pInitMap, AccessibleRole::FOOTER, pFtFrame )
+{
+    OUString sArg( OUString::number( pFtFrame->GetPhyPageNum() ) );
+    SetName( GetResource( STR_ACCESS_FOOTER_NAME, &sArg ) );
+}
+
+SwAccessibleHeaderFooter::~SwAccessibleHeaderFooter()
+{
+}
+
+OUString SAL_CALL SwAccessibleHeaderFooter::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    TranslateId pResId = AccessibleRole::HEADER == GetRole()
+        ? STR_ACCESS_HEADER_DESC
+        : STR_ACCESS_FOOTER_DESC ;
+
+    OUString sArg( GetFormattedPageNumber() );
+
+    return GetResource(pResId, &sArg);
+}
+
+OUString SAL_CALL SwAccessibleHeaderFooter::getImplementationName()
+{
+    if( AccessibleRole::HEADER == GetRole() )
+        return sImplementationNameHeader;
+    else
+        return sImplementationNameFooter;
+}
+
+sal_Bool SAL_CALL SwAccessibleHeaderFooter::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+Sequence< OUString > SAL_CALL SwAccessibleHeaderFooter::getSupportedServiceNames()
+{
+    return { (AccessibleRole::HEADER == GetRole())?OUString("com.sun.star.text.AccessibleHeaderView"):OUString("com.sun.star.text.AccessibleFooterView"),
+             sAccessibleServiceName };
+}
+
+Sequence< sal_Int8 > SAL_CALL SwAccessibleHeaderFooter::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+sal_Int32 SAL_CALL SwAccessibleHeaderFooter::getBackground()
+{
+    Reference< XAccessible > xParent =  getAccessibleParent();
+    if (xParent.is())
+    {
+        Reference< XAccessibleComponent > xAccContext (xParent,UNO_QUERY);
+        if(xAccContext.is())
+        {
+            return xAccContext->getBackground();
+        }
+    }
+    return SwAccessibleContext::getBackground();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accheaderfooter.hxx b/sw/source/core/access/accheaderfooter.hxx
new file mode 100644
index 000000000..821ed9883
--- /dev/null
+++ b/sw/source/core/access/accheaderfooter.hxx
@@ -0,0 +1,64 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCHEADERFOOTER_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCHEADERFOOTER_HXX
+
+#include "acccontext.hxx"
+
+class SwHeaderFrame;
+class SwFooterFrame;
+
+class SwAccessibleHeaderFooter : public SwAccessibleContext
+{
+protected:
+    virtual ~SwAccessibleHeaderFooter() override;
+
+public:
+    SwAccessibleHeaderFooter(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                             const SwHeaderFrame* pHdFrame);
+    SwAccessibleHeaderFooter(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                             const SwFooterFrame* pFtFrame);
+
+    // XAccessibleContext
+
+    /// Return this object's description.
+    virtual OUString SAL_CALL getAccessibleDescription() override;
+
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object. */
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class. */
+    virtual sal_Bool SAL_CALL supportsService(const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service. */
+    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence<sal_Int8> SAL_CALL getImplementationId() override;
+    // XAccessibleComponent
+    sal_Int32 SAL_CALL getBackground() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acchyperlink.cxx b/sw/source/core/access/acchyperlink.cxx
new file mode 100644
index 000000000..76a2721ec
--- /dev/null
+++ b/sw/source/core/access/acchyperlink.cxx
@@ -0,0 +1,236 @@
+/* -*- 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 <comphelper/accessiblekeybindinghelper.hxx>
+#include <comphelper/processfactory.hxx>
+#include <com/sun/star/frame/XDesktop.hpp>
+#include <com/sun/star/document/XLinkTargetSupplier.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <swurl.hxx>
+#include <vcl/keycodes.hxx>
+#include <vcl/svapp.hxx>
+#include <txtinet.hxx>
+#include "accpara.hxx"
+#include "acchyperlink.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using ::com::sun::star::lang::IndexOutOfBoundsException;
+
+SwAccessibleHyperlink::SwAccessibleHyperlink(const SwTextAttr & rTextAttr,
+        SwAccessibleParagraph & rAccPara,
+        sal_Int32 const nStt, sal_Int32 const nEnd)
+    : m_pHyperlink(const_cast<SwFormatINetFormat*>(&rTextAttr.GetINetFormat()))
+    , m_xParagraph(&rAccPara)
+    , m_nStartIndex( nStt )
+    , m_nEndIndex( nEnd )
+{
+    StartListening(m_pHyperlink->GetNotifier());
+}
+
+SwAccessibleHyperlink::~SwAccessibleHyperlink()
+{
+    Invalidate(); // with SolarMutex!
+}
+
+// when the pool item dies, invalidate! this is the only reason for Listener...
+void SwAccessibleHyperlink::Notify(SfxHint const& rHint)
+{
+    if (rHint.GetId() == SfxHintId::Dying)
+    {
+        Invalidate();
+    }
+}
+
+// both the parent SwAccessibleParagraph and the pool-item must be valid
+const SwFormatINetFormat *SwAccessibleHyperlink::GetTextAttr() const
+{
+    return (m_xParagraph.is() && m_xParagraph->GetMap())
+        ? m_pHyperlink
+        : nullptr;
+}
+
+// XAccessibleAction
+sal_Int32 SAL_CALL SwAccessibleHyperlink::getAccessibleActionCount()
+{
+     return isValid() ? 1 : 0;
+}
+
+sal_Bool SAL_CALL SwAccessibleHyperlink::doAccessibleAction( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    bool bRet = false;
+
+    if(nIndex != 0)
+        throw lang::IndexOutOfBoundsException();
+    SwFormatINetFormat const*const pINetFormat = GetTextAttr();
+    if (pINetFormat && !pINetFormat->GetValue().isEmpty())
+    {
+        SwViewShell *pVSh = m_xParagraph->GetShell();
+        if (pVSh)
+        {
+            LoadURL(*pVSh, pINetFormat->GetValue(), LoadUrlFlags::NONE,
+                     pINetFormat->GetTargetFrame());
+            const SwTextINetFormat *const pTextAttr = pINetFormat->GetTextINetFormat();
+            if (pTextAttr)
+            {
+                const_cast<SwTextINetFormat*>(pTextAttr)->SetVisited(true);
+                const_cast<SwTextINetFormat*>(pTextAttr)->SetVisitedValid(true);
+            }
+            bRet = true;
+        }
+    }
+
+    return bRet;
+}
+
+OUString SAL_CALL SwAccessibleHyperlink::getAccessibleActionDescription(
+        sal_Int32 nIndex )
+{
+    if(nIndex != 0)
+        throw lang::IndexOutOfBoundsException();
+
+    SolarMutexGuard g;
+    if (SwFormatINetFormat const*const pINetFormat = GetTextAttr())
+    {
+        return pINetFormat->GetValue();
+    }
+
+    return OUString();
+}
+
+uno::Reference< XAccessibleKeyBinding > SAL_CALL
+    SwAccessibleHyperlink::getAccessibleActionKeyBinding( sal_Int32 )
+{
+    uno::Reference< XAccessibleKeyBinding > xKeyBinding;
+
+    if( isValid() )
+    {
+        rtl::Reference<::comphelper::OAccessibleKeyBindingHelper> pKeyBindingHelper =
+               new ::comphelper::OAccessibleKeyBindingHelper();
+        xKeyBinding = pKeyBindingHelper;
+
+        awt::KeyStroke aKeyStroke;
+        aKeyStroke.Modifiers = 0;
+        aKeyStroke.KeyCode = KEY_RETURN;
+        aKeyStroke.KeyChar = 0;
+        aKeyStroke.KeyFunc = 0;
+        pKeyBindingHelper->AddKeyBinding( aKeyStroke );
+    }
+
+    return xKeyBinding;
+}
+
+// XAccessibleHyperlink
+uno::Any SAL_CALL SwAccessibleHyperlink::getAccessibleActionAnchor(
+        sal_Int32 nIndex)
+{
+    SolarMutexGuard g;
+
+    uno::Any aRet;
+    if(nIndex != 0)
+        throw lang::IndexOutOfBoundsException();
+    OUString text( m_xParagraph->GetString() );
+    OUString retText =  text.copy(m_nStartIndex, m_nEndIndex - m_nStartIndex);
+    aRet <<= retText;
+    return aRet;
+}
+
+uno::Any SAL_CALL SwAccessibleHyperlink::getAccessibleActionObject(
+            sal_Int32 nIndex )
+{
+    SolarMutexGuard g;
+
+    if(nIndex != 0)
+        throw lang::IndexOutOfBoundsException();
+    OUString retText;
+    if (SwFormatINetFormat const*const pINetFormat = GetTextAttr())
+    {
+        retText = pINetFormat->GetValue();
+    }
+    uno::Any aRet;
+    aRet <<= retText;
+    return aRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleHyperlink::getStartIndex()
+{
+    return m_nStartIndex;
+}
+
+sal_Int32 SAL_CALL SwAccessibleHyperlink::getEndIndex()
+{
+    return m_nEndIndex;
+}
+
+sal_Bool SAL_CALL SwAccessibleHyperlink::isValid(  )
+{
+    SolarMutexGuard aGuard;
+    if (m_xParagraph.is())
+    {
+        if (SwFormatINetFormat const*const pINetFormat = GetTextAttr())
+        {
+            OUString const sText(pINetFormat->GetValue());
+            sal_Int32 nPos = sText.indexOf("#");
+            if (nPos==0)//document link
+            {
+                uno::Reference< lang::XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory() );
+                if( ! xFactory.is() )
+                    return false;
+                uno::Reference< css::frame::XDesktop > xDesktop( xFactory->createInstance( "com.sun.star.frame.Desktop" ),
+                    uno::UNO_QUERY );
+                if( !xDesktop.is() )
+                    return false;
+                uno::Reference< lang::XComponent > xComp = xDesktop->getCurrentComponent();
+                if( !xComp.is() )
+                    return false;
+                uno::Reference< css::document::XLinkTargetSupplier >  xLTS(xComp, uno::UNO_QUERY);
+                if ( !xLTS.is())
+                    return false;
+
+                uno::Reference< css::container::XNameAccess > xLinks = xLTS->getLinks();
+                uno::Reference< css::container::XNameAccess > xSubLinks;
+                const uno::Sequence< OUString > aNames( xLinks->getElementNames() );
+
+                for( const OUString& aLink : aNames )
+                {
+                    uno::Any aAny = xLinks->getByName( aLink );
+                    aAny >>= xSubLinks;
+                    if (xSubLinks->hasByName(sText.copy(1)) )
+                        return true;
+                }
+            }
+            else//internet
+                return true;
+        }
+    }//xpara valid
+    return false;
+}
+
+void SwAccessibleHyperlink::Invalidate()
+{
+    SolarMutexGuard aGuard;
+    m_xParagraph = nullptr;
+    m_pHyperlink = nullptr;
+    EndListeningAll();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acchyperlink.hxx b/sw/source/core/access/acchyperlink.hxx
new file mode 100644
index 000000000..68116d99d
--- /dev/null
+++ b/sw/source/core/access/acchyperlink.hxx
@@ -0,0 +1,75 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCHYPERLINK_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCHYPERLINK_HXX
+
+#include <com/sun/star/accessibility/XAccessibleHyperlink.hpp>
+#include <rtl/ref.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <svl/listener.hxx>
+
+class SwFormatINetFormat;
+class SwAccessibleParagraph;
+class SwTextAttr;
+
+class SwAccessibleHyperlink
+    : public ::cppu::WeakImplHelper<css::accessibility::XAccessibleHyperlink>
+    , public SvtListener
+{
+    friend class SwAccessibleParagraph;
+    friend class SwAccessibleHyperTextData;
+    SwFormatINetFormat * m_pHyperlink;
+    ::rtl::Reference< SwAccessibleParagraph > m_xParagraph;
+    sal_Int32 m_nStartIndex;
+    sal_Int32 m_nEndIndex;
+
+    SwAccessibleHyperlink(const SwTextAttr &,
+                          SwAccessibleParagraph &,
+                          sal_Int32 nStt, sal_Int32 nEnd    );
+    virtual ~SwAccessibleHyperlink() override;
+
+    const SwFormatINetFormat* GetTextAttr() const;
+    void Invalidate();
+
+    virtual void Notify(SfxHint const& rHint) override;
+
+public:
+    // XAccessibleAction
+    virtual sal_Int32 SAL_CALL getAccessibleActionCount() override;
+    virtual sal_Bool SAL_CALL doAccessibleAction( sal_Int32 nIndex ) override;
+    virtual OUString SAL_CALL getAccessibleActionDescription(
+                sal_Int32 nIndex ) override;
+    virtual css::uno::Reference<
+            css::accessibility::XAccessibleKeyBinding > SAL_CALL
+               getAccessibleActionKeyBinding( sal_Int32 nIndex ) override;
+
+    // XAccessibleHyperlink
+    virtual css::uno::Any SAL_CALL getAccessibleActionAnchor(
+                sal_Int32 nIndex ) override;
+    virtual css::uno::Any SAL_CALL getAccessibleActionObject(
+            sal_Int32 nIndex ) override;
+    virtual sal_Int32 SAL_CALL getStartIndex() override;
+    virtual sal_Int32 SAL_CALL getEndIndex() override;
+    virtual sal_Bool SAL_CALL isValid(  ) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acchypertextdata.cxx b/sw/source/core/access/acchypertextdata.cxx
new file mode 100644
index 000000000..918bcc631
--- /dev/null
+++ b/sw/source/core/access/acchypertextdata.cxx
@@ -0,0 +1,46 @@
+/* -*- 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 "acchyperlink.hxx"
+#include "acchypertextdata.hxx"
+
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star::uno;
+
+SwAccessibleHyperTextData::SwAccessibleHyperTextData()
+{
+}
+
+SwAccessibleHyperTextData::~SwAccessibleHyperTextData()
+{
+    iterator aIter = begin();
+    while( aIter != end() )
+    {
+        Reference < XAccessibleHyperlink > xTmp = (*aIter).second;
+        if( xTmp.is() )
+        {
+            SwAccessibleHyperlink *pTmp =
+                static_cast< SwAccessibleHyperlink * >( xTmp.get() );
+            pTmp->Invalidate();
+        }
+        ++aIter;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acchypertextdata.hxx b/sw/source/core/access/acchypertextdata.hxx
new file mode 100644
index 000000000..01833885a
--- /dev/null
+++ b/sw/source/core/access/acchypertextdata.hxx
@@ -0,0 +1,54 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCHYPERTEXTDATA_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCHYPERTEXTDATA_HXX
+
+#include <cppuhelper/weakref.hxx>
+#include <map>
+
+class SwTextAttr;
+namespace com::sun::star::accessibility {
+    class XAccessibleHyperlink;
+}
+
+class SwAccessibleHyperTextData
+{
+public:
+    typedef const SwTextAttr *                                          key_type;
+    typedef css::uno::WeakReference< css::accessibility::XAccessibleHyperlink > mapped_type;
+    typedef std::pair<const key_type,mapped_type>                       value_type;
+    typedef std::less< const SwTextAttr * >                             key_compare;
+    typedef std::map<key_type,mapped_type,key_compare>::iterator        iterator;
+private:
+    std::map<key_type,mapped_type,key_compare> maMap;
+public:
+    SwAccessibleHyperTextData();
+    ~SwAccessibleHyperTextData();
+
+    iterator begin() { return maMap.begin(); }
+    iterator end() { return maMap.end(); }
+    iterator find(const key_type& key) { return maMap.find(key); }
+    template<class... Args>
+    std::pair<iterator,bool> emplace(Args&&... args) { return maMap.emplace(std::forward<Args>(args)...); }
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accmap.cxx b/sw/source/core/access/accmap.cxx
new file mode 100644
index 000000000..d5c30b9d9
--- /dev/null
+++ b/sw/source/core/access/accmap.cxx
@@ -0,0 +1,3440 @@
+/* -*- 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 <rtl/ref.hxx>
+#include <cppuhelper/weakref.hxx>
+#include <vcl/window.hxx>
+#include <svx/svdmodel.hxx>
+#include <svx/unomod.hxx>
+#include <algorithm>
+#include <map>
+#include <unordered_map>
+#include <list>
+#include <vector>
+#include <accmap.hxx>
+#include "acccontext.hxx"
+#include "accdoc.hxx"
+#include <strings.hrc>
+#include "accpreview.hxx"
+#include "accpage.hxx"
+#include "accpara.hxx"
+#include "accheaderfooter.hxx"
+#include "accfootnote.hxx"
+#include "acctextframe.hxx"
+#include "accgraphic.hxx"
+#include "accembedded.hxx"
+#include "acccell.hxx"
+#include "acctable.hxx"
+#include <fesh.hxx>
+#include <istype.hxx>
+#include <rootfrm.hxx>
+#include <txtfrm.hxx>
+#include <hffrm.hxx>
+#include <ftnfrm.hxx>
+#include <cellfrm.hxx>
+#include <tabfrm.hxx>
+#include <pagefrm.hxx>
+#include <flyfrm.hxx>
+#include <ndtyp.hxx>
+#include <IDocumentDrawModelAccess.hxx>
+#include <svx/AccessibleShapeInfo.hxx>
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/SvxShapeTypes.hxx>
+#include <svx/svdpage.hxx>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/document/XShapeEventBroadcaster.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <comphelper/interfacecontainer3.hxx>
+#include <pagepreviewlayout.hxx>
+#include <dcontact.hxx>
+#include <svx/svdmark.hxx>
+#include <doc.hxx>
+#include <drawdoc.hxx>
+#include <pam.hxx>
+#include <ndtxt.hxx>
+#include <dflyobj.hxx>
+#include <prevwpage.hxx>
+#include <calbck.hxx>
+#include <undobj.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/debug.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using namespace ::sw::access;
+
+class SwAccessibleContextMap_Impl
+{
+public:
+    typedef const SwFrame *                                               key_type;
+    typedef uno::WeakReference < XAccessible >                          mapped_type;
+    typedef std::pair<const key_type,mapped_type>                       value_type;
+    typedef std::map<key_type, mapped_type>::iterator iterator;
+    typedef std::map<key_type, mapped_type>::const_iterator const_iterator;
+private:
+    std::map <key_type, mapped_type> maMap;
+public:
+
+#if OSL_DEBUG_LEVEL > 0
+    bool mbLocked;
+#endif
+
+    SwAccessibleContextMap_Impl()
+#if OSL_DEBUG_LEVEL > 0
+        : mbLocked( false )
+#endif
+    {}
+
+    iterator begin() { return maMap.begin(); }
+    iterator end() { return maMap.end(); }
+    bool empty() const { return maMap.empty(); }
+    void clear() { maMap.clear(); }
+    iterator find(const key_type& key) { return maMap.find(key); }
+    template<class... Args>
+    std::pair<iterator,bool> emplace(Args&&... args) { return maMap.emplace(std::forward<Args>(args)...); }
+    iterator erase(const_iterator const & pos) { return maMap.erase(pos); }
+};
+
+namespace {
+
+class SwDrawModellListener_Impl : public SfxListener,
+    public ::cppu::WeakImplHelper< document::XShapeEventBroadcaster >
+{
+    mutable ::osl::Mutex maListenerMutex;
+    ::comphelper::OInterfaceContainerHelper3<css::document::XEventListener> maEventListeners;
+    std::unordered_multimap<css::uno::Reference< css::drawing::XShape >, css::uno::Reference< css::document::XShapeEventListener >> maShapeListeners;
+    SdrModel *mpDrawModel;
+protected:
+    virtual ~SwDrawModellListener_Impl() override;
+
+public:
+    explicit SwDrawModellListener_Impl( SdrModel *pDrawModel );
+
+    // css::document::XEventBroadcaster
+    virtual void SAL_CALL addEventListener( const uno::Reference< document::XEventListener >& xListener ) override;
+    virtual void SAL_CALL removeEventListener( const uno::Reference< document::XEventListener >& xListener ) override;
+    // css::document::XShapeEventBroadcaster
+    virtual void SAL_CALL addShapeEventListener( const css::uno::Reference< css::drawing::XShape >& xShape, const css::uno::Reference< css::document::XShapeEventListener >& xListener ) override;
+    virtual void SAL_CALL removeShapeEventListener( const css::uno::Reference< css::drawing::XShape >& xShape, const css::uno::Reference< css::document::XShapeEventListener >& xListener ) override;
+
+    virtual void        Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+    void Dispose();
+};
+
+}
+
+SwDrawModellListener_Impl::SwDrawModellListener_Impl( SdrModel *pDrawModel ) :
+    maEventListeners( maListenerMutex ),
+    mpDrawModel( pDrawModel )
+{
+    StartListening( *mpDrawModel );
+}
+
+SwDrawModellListener_Impl::~SwDrawModellListener_Impl()
+{
+    Dispose();
+}
+
+void SAL_CALL SwDrawModellListener_Impl::addEventListener( const uno::Reference< document::XEventListener >& xListener )
+{
+    maEventListeners.addInterface( xListener );
+}
+
+void SAL_CALL SwDrawModellListener_Impl::removeEventListener( const uno::Reference< document::XEventListener >& xListener )
+{
+    maEventListeners.removeInterface( xListener );
+}
+
+void SAL_CALL SwDrawModellListener_Impl::addShapeEventListener(
+                const css::uno::Reference< css::drawing::XShape >& xShape,
+                const uno::Reference< document::XShapeEventListener >& xListener )
+{
+    assert(xShape.is() && "no shape?");
+    osl::MutexGuard aGuard(maListenerMutex);
+    maShapeListeners.emplace(xShape, xListener);
+}
+
+void SAL_CALL SwDrawModellListener_Impl::removeShapeEventListener(
+                const css::uno::Reference< css::drawing::XShape >& xShape,
+                const uno::Reference< document::XShapeEventListener >& xListener )
+{
+    osl::MutexGuard aGuard(maListenerMutex);
+    auto [itBegin, itEnd] = maShapeListeners.equal_range(xShape);
+    for (auto it = itBegin; it != itEnd; ++it)
+        if (it->second == xListener)
+        {
+            maShapeListeners.erase(it);
+            return;
+        }
+}
+
+void SwDrawModellListener_Impl::Notify( SfxBroadcaster& /*rBC*/,
+        const SfxHint& rHint )
+{
+    // do not broadcast notifications for writer fly frames, because there
+    // are no shapes that need to know about them.
+    if (rHint.GetId() != SfxHintId::ThisIsAnSdrHint)
+        return;
+    const SdrHint *pSdrHint = static_cast<const SdrHint*>( &rHint );
+    if (pSdrHint->GetObject() &&
+           ( dynamic_cast< const SwFlyDrawObj* >(pSdrHint->GetObject()) !=  nullptr ||
+              dynamic_cast< const SwVirtFlyDrawObj* >(pSdrHint->GetObject()) !=  nullptr ||
+             isType<SdrObject>(pSdrHint->GetObject()) ) )
+    {
+        return;
+    }
+
+    OSL_ENSURE( mpDrawModel, "draw model listener is disposed" );
+    if( !mpDrawModel )
+        return;
+
+    document::EventObject aEvent;
+    if( !SvxUnoDrawMSFactory::createEvent( mpDrawModel, pSdrHint, aEvent ) )
+        return;
+
+    ::comphelper::OInterfaceIteratorHelper3 aIter( maEventListeners );
+    while( aIter.hasMoreElements() )
+    {
+        try
+        {
+            aIter.next()->notifyEvent( aEvent );
+        }
+        catch( uno::RuntimeException const & )
+        {
+            TOOLS_WARN_EXCEPTION("sw.a11y", "Runtime exception caught while notifying shape");
+        }
+    }
+
+    // right now, we're only handling the specific event necessary to fix this performance problem
+    if (pSdrHint->GetKind() == SdrHintKind::ObjectChange)
+    {
+        auto pSdrObject = const_cast<SdrObject*>(pSdrHint->GetObject());
+        uno::Reference<drawing::XShape> xShape(pSdrObject->getUnoShape(), uno::UNO_QUERY);
+        osl::MutexGuard aGuard(maListenerMutex);
+        auto [itBegin, itEnd] = maShapeListeners.equal_range(xShape);
+        for (auto it = itBegin; it != itEnd; ++it)
+            it->second->notifyShapeEvent(aEvent);
+    }
+}
+
+void SwDrawModellListener_Impl::Dispose()
+{
+    if (mpDrawModel != nullptr) {
+        EndListening( *mpDrawModel );
+    }
+    mpDrawModel = nullptr;
+}
+
+typedef std::pair < const SdrObject *, ::rtl::Reference < ::accessibility::AccessibleShape > > SwAccessibleObjShape_Impl;
+
+class SwAccessibleShapeMap_Impl
+{
+public:
+
+    typedef const SdrObject *                                           key_type;
+    typedef uno::WeakReference<XAccessible>                             mapped_type;
+    typedef std::pair<const key_type,mapped_type>                       value_type;
+    typedef std::map<key_type, mapped_type>::iterator iterator;
+    typedef std::map<key_type, mapped_type>::const_iterator const_iterator;
+
+private:
+
+    ::accessibility::AccessibleShapeTreeInfo    maInfo;
+    std::map<key_type, mapped_type> maMap;
+
+public:
+
+    explicit SwAccessibleShapeMap_Impl( SwAccessibleMap const *pMap )
+    {
+        maInfo.SetSdrView( pMap->GetShell()->GetDrawView() );
+        maInfo.SetWindow( pMap->GetShell()->GetWin() );
+        maInfo.SetViewForwarder( pMap );
+        uno::Reference < document::XShapeEventBroadcaster > xModelBroadcaster =
+            new SwDrawModellListener_Impl(
+                    pMap->GetShell()->getIDocumentDrawModelAccess().GetOrCreateDrawModel() );
+        maInfo.SetModelBroadcaster( xModelBroadcaster );
+    }
+
+    ~SwAccessibleShapeMap_Impl();
+
+    const ::accessibility::AccessibleShapeTreeInfo& GetInfo() const { return maInfo; }
+
+    std::unique_ptr<SwAccessibleObjShape_Impl[]> Copy( size_t& rSize,
+        const SwFEShell *pFESh,
+        SwAccessibleObjShape_Impl  **pSelShape ) const;
+
+    iterator end() { return maMap.end(); }
+    const_iterator cbegin() const { return maMap.cbegin(); }
+    const_iterator cend() const { return maMap.cend(); }
+    bool empty() const { return maMap.empty(); }
+    iterator find(const key_type& key) { return maMap.find(key); }
+    template<class... Args>
+    std::pair<iterator,bool> emplace(Args&&... args) { return maMap.emplace(std::forward<Args>(args)...); }
+    iterator erase(const_iterator const & pos) { return maMap.erase(pos); }
+};
+
+SwAccessibleShapeMap_Impl::~SwAccessibleShapeMap_Impl()
+{
+    uno::Reference < document::XEventBroadcaster > xBrd( maInfo.GetModelBroadcaster() );
+    if( xBrd.is() )
+        static_cast < SwDrawModellListener_Impl * >( xBrd.get() )->Dispose();
+}
+
+std::unique_ptr<SwAccessibleObjShape_Impl[]>
+    SwAccessibleShapeMap_Impl::Copy(
+            size_t& rSize, const SwFEShell *pFESh,
+            SwAccessibleObjShape_Impl **pSelStart ) const
+{
+    std::unique_ptr<SwAccessibleObjShape_Impl[]> pShapes;
+    SwAccessibleObjShape_Impl *pSelShape = nullptr;
+
+    size_t nSelShapes = pFESh ? pFESh->IsObjSelected() : 0;
+    rSize = maMap.size();
+
+    if( rSize > 0 )
+    {
+        pShapes.reset(new SwAccessibleObjShape_Impl[rSize]);
+
+        SwAccessibleObjShape_Impl *pShape = pShapes.get();
+        pSelShape = &(pShapes[rSize]);
+        for( const auto& rEntry : maMap )
+        {
+            const SdrObject *pObj = rEntry.first;
+            uno::Reference < XAccessible > xAcc( rEntry.second );
+            if( nSelShapes && pFESh && pFESh->IsObjSelected( *pObj ) )
+            {
+                // selected objects are inserted from the back
+                --pSelShape;
+                pSelShape->first = pObj;
+                pSelShape->second =
+                    static_cast < ::accessibility::AccessibleShape* >(
+                                                    xAcc.get() );
+                --nSelShapes;
+            }
+            else
+            {
+                pShape->first = pObj;
+                pShape->second =
+                    static_cast < ::accessibility::AccessibleShape* >(
+                                                    xAcc.get() );
+                ++pShape;
+            }
+        }
+        assert(pSelShape == pShape);
+    }
+
+    if( pSelStart )
+        *pSelStart = pSelShape;
+
+    return pShapes;
+}
+
+struct SwAccessibleEvent_Impl
+{
+public:
+    enum EventType { CARET_OR_STATES,
+                     INVALID_CONTENT,
+                     POS_CHANGED,
+                     CHILD_POS_CHANGED,
+                     SHAPE_SELECTION,
+                     DISPOSE,
+                     INVALID_ATTR };
+
+private:
+    SwRect      maOldBox;                       // the old bounds for CHILD_POS_CHANGED
+                                                // and POS_CHANGED
+    uno::WeakReference < XAccessible > mxAcc;   // The object that fires the event
+    SwAccessibleChild maFrameOrObj;             // the child for CHILD_POS_CHANGED and
+                                                // the same as xAcc for any other
+                                                // event type
+    EventType   meType;                         // The event type
+    AccessibleStates mnStates;                 // check states or update caret pos
+
+public:
+    const SwFrame* mpParentFrame;   // The object that fires the event
+    bool IsNoXaccParentFrame() const
+    {
+        return CHILD_POS_CHANGED == meType && mpParentFrame != nullptr;
+    }
+
+public:
+    SwAccessibleEvent_Impl( EventType eT,
+                            SwAccessibleContext *pA,
+                            const SwAccessibleChild& rFrameOrObj )
+        : mxAcc( pA ),
+          maFrameOrObj( rFrameOrObj ),
+          meType( eT ),
+          mnStates( AccessibleStates::NONE ),
+          mpParentFrame( nullptr )
+    {}
+
+    SwAccessibleEvent_Impl( EventType eT,
+                            const SwAccessibleChild& rFrameOrObj )
+        : maFrameOrObj( rFrameOrObj ),
+          meType( eT ),
+          mnStates( AccessibleStates::NONE ),
+          mpParentFrame( nullptr )
+    {
+        assert(SwAccessibleEvent_Impl::DISPOSE == meType &&
+                "wrong event constructor, DISPOSE only");
+    }
+
+    explicit SwAccessibleEvent_Impl( EventType eT )
+        : meType( eT ),
+          mnStates( AccessibleStates::NONE ),
+          mpParentFrame( nullptr )
+    {
+        assert(SwAccessibleEvent_Impl::SHAPE_SELECTION == meType &&
+                "wrong event constructor, SHAPE_SELECTION only" );
+    }
+
+    SwAccessibleEvent_Impl( EventType eT,
+                            SwAccessibleContext *pA,
+                            const SwAccessibleChild& rFrameOrObj,
+                            const SwRect& rR )
+        : maOldBox( rR ),
+          mxAcc( pA ),
+          maFrameOrObj( rFrameOrObj ),
+          meType( eT ),
+          mnStates( AccessibleStates::NONE ),
+          mpParentFrame( nullptr )
+    {
+        assert((SwAccessibleEvent_Impl::CHILD_POS_CHANGED == meType ||
+                SwAccessibleEvent_Impl::POS_CHANGED == meType) &&
+                "wrong event constructor, (CHILD_)POS_CHANGED only" );
+    }
+
+    SwAccessibleEvent_Impl( EventType eT,
+                            SwAccessibleContext *pA,
+                            const SwAccessibleChild& rFrameOrObj,
+                            const AccessibleStates _nStates )
+        : mxAcc( pA ),
+          maFrameOrObj( rFrameOrObj ),
+          meType( eT ),
+          mnStates( _nStates ),
+          mpParentFrame( nullptr )
+    {
+        assert( SwAccessibleEvent_Impl::CARET_OR_STATES == meType &&
+                "wrong event constructor, CARET_OR_STATES only" );
+    }
+
+    SwAccessibleEvent_Impl( EventType eT, const SwFrame *pParentFrame,
+                const SwAccessibleChild& rFrameOrObj, const SwRect& rR ) :
+        maOldBox( rR ),
+        maFrameOrObj( rFrameOrObj ),
+        meType( eT ),
+        mnStates( AccessibleStates::NONE ),
+        mpParentFrame( pParentFrame )
+    {
+        assert( SwAccessibleEvent_Impl::CHILD_POS_CHANGED == meType &&
+            "wrong event constructor, CHILD_POS_CHANGED only" );
+    }
+
+    // <SetType(..)> only used in method <SwAccessibleMap::AppendEvent(..)>
+    void SetType( EventType eT )
+    {
+        meType = eT;
+    }
+    EventType GetType() const
+    {
+        return meType;
+    }
+
+    ::rtl::Reference < SwAccessibleContext > GetContext() const
+    {
+        uno::Reference < XAccessible > xTmp( mxAcc );
+        ::rtl::Reference < SwAccessibleContext > xAccImpl(
+                            static_cast<SwAccessibleContext*>( xTmp.get() ) );
+
+        return xAccImpl;
+    }
+
+    const SwRect& GetOldBox() const
+    {
+        return maOldBox;
+    }
+    // <SetOldBox(..)> only used in method <SwAccessibleMap::AppendEvent(..)>
+    void SetOldBox( const SwRect& rOldBox )
+    {
+        maOldBox = rOldBox;
+    }
+
+    const SwAccessibleChild& GetFrameOrObj() const
+    {
+        return maFrameOrObj;
+    }
+
+    // <SetStates(..)> only used in method <SwAccessibleMap::AppendEvent(..)>
+    void SetStates( AccessibleStates _nStates )
+    {
+        mnStates |= _nStates;
+    }
+
+    bool IsUpdateCursorPos() const
+    {
+        return bool(mnStates & AccessibleStates::CARET);
+    }
+    bool IsInvalidateStates() const
+    {
+        return bool(mnStates & (AccessibleStates::EDITABLE | AccessibleStates::OPAQUE));
+    }
+    bool IsInvalidateRelation() const
+    {
+        return bool(mnStates & (AccessibleStates::RELATION_FROM | AccessibleStates::RELATION_TO));
+    }
+    bool IsInvalidateTextSelection() const
+    {
+        return bool( mnStates & AccessibleStates::TEXT_SELECTION_CHANGED );
+    }
+
+    bool IsInvalidateTextAttrs() const
+    {
+        return bool( mnStates & AccessibleStates::TEXT_ATTRIBUTE_CHANGED );
+    }
+
+    AccessibleStates GetStates() const
+    {
+        return mnStates;
+    }
+
+    AccessibleStates GetAllStates() const
+    {
+        return mnStates;
+    }
+};
+
+class SwAccessibleEventList_Impl
+{
+    std::list<SwAccessibleEvent_Impl> maEvents;
+    bool mbFiring;
+
+public:
+    SwAccessibleEventList_Impl()
+        : mbFiring( false )
+    {}
+
+    void SetFiring()
+    {
+        mbFiring = true;
+    }
+    bool IsFiring() const
+    {
+        return mbFiring;
+    }
+
+    void MoveMissingXAccToEnd();
+
+    size_t size() const { return maEvents.size(); }
+    std::list<SwAccessibleEvent_Impl>::iterator begin() { return maEvents.begin(); }
+    std::list<SwAccessibleEvent_Impl>::iterator end() { return maEvents.end(); }
+    std::list<SwAccessibleEvent_Impl>::iterator insert( const std::list<SwAccessibleEvent_Impl>::iterator& aIter,
+                                                        const SwAccessibleEvent_Impl& rEvent )
+    {
+        return maEvents.insert( aIter, rEvent );
+    }
+    std::list<SwAccessibleEvent_Impl>::iterator erase( const std::list<SwAccessibleEvent_Impl>::iterator& aPos )
+    {
+        return maEvents.erase( aPos );
+    }
+};
+
+// see comment in SwAccessibleMap::InvalidatePosOrSize()
+// last case "else if(pParent)" for why this surprising hack exists
+void SwAccessibleEventList_Impl::MoveMissingXAccToEnd()
+{
+    size_t nSize = size();
+    if (nSize < 2 )
+    {
+        return;
+    }
+    SwAccessibleEventList_Impl lstEvent;
+    for (auto li = begin(); li != end(); )
+    {
+        if (li->IsNoXaccParentFrame())
+        {
+            lstEvent.insert(lstEvent.end(), *li);
+            li = erase(li);
+        }
+        else
+            ++li;
+    }
+    assert(size() + lstEvent.size() == nSize);
+    maEvents.insert(end(),lstEvent.begin(),lstEvent.end());
+    assert(size() == nSize);
+}
+
+namespace {
+
+struct SwAccessibleChildFunc
+{
+    bool operator()( const SwAccessibleChild& r1,
+                         const SwAccessibleChild& r2 ) const
+    {
+        const void *p1 = r1.GetSwFrame()
+                         ? static_cast < const void * >( r1.GetSwFrame())
+                         : ( r1.GetDrawObject()
+                             ? static_cast < const void * >( r1.GetDrawObject() )
+                             : static_cast < const void * >( r1.GetWindow() ) );
+        const void *p2 = r2.GetSwFrame()
+                         ? static_cast < const void * >( r2.GetSwFrame())
+                         : ( r2.GetDrawObject()
+                             ? static_cast < const void * >( r2.GetDrawObject() )
+                             : static_cast < const void * >( r2.GetWindow() ) );
+        return p1 < p2;
+    }
+};
+
+}
+
+class SwAccessibleEventMap_Impl
+{
+public:
+    typedef SwAccessibleChild                                           key_type;
+    typedef std::list<SwAccessibleEvent_Impl>::iterator                 mapped_type;
+    typedef std::pair<const key_type,mapped_type>                       value_type;
+    typedef SwAccessibleChildFunc                                       key_compare;
+    typedef std::map<key_type,mapped_type,key_compare>::iterator        iterator;
+    typedef std::map<key_type,mapped_type,key_compare>::const_iterator  const_iterator;
+private:
+    std::map <key_type,mapped_type,key_compare> maMap;
+public:
+    iterator end() { return maMap.end(); }
+    iterator find(const key_type& key) { return maMap.find(key); }
+    template<class... Args>
+    std::pair<iterator,bool> emplace(Args&&... args) { return maMap.emplace(std::forward<Args>(args)...); }
+    iterator erase(const_iterator const & pos) { return maMap.erase(pos); }
+};
+
+namespace {
+
+struct SwAccessibleParaSelection
+{
+    TextFrameIndex nStartOfSelection;
+    TextFrameIndex nEndOfSelection;
+
+    SwAccessibleParaSelection(const TextFrameIndex nStartOfSelection_,
+                              const TextFrameIndex nEndOfSelection_)
+        : nStartOfSelection(nStartOfSelection_)
+        , nEndOfSelection(nEndOfSelection_)
+    {}
+};
+
+struct SwXAccWeakRefComp
+{
+    bool operator()( const uno::WeakReference<XAccessible>& _rXAccWeakRef1,
+                         const uno::WeakReference<XAccessible>& _rXAccWeakRef2 ) const
+    {
+        return _rXAccWeakRef1.get() < _rXAccWeakRef2.get();
+    }
+};
+
+}
+
+class SwAccessibleSelectedParas_Impl
+{
+public:
+    typedef uno::WeakReference < XAccessible >                          key_type;
+    typedef SwAccessibleParaSelection                                   mapped_type;
+    typedef std::pair<const key_type,mapped_type>                       value_type;
+    typedef SwXAccWeakRefComp                                           key_compare;
+    typedef std::map<key_type,mapped_type,key_compare>::iterator        iterator;
+    typedef std::map<key_type,mapped_type,key_compare>::const_iterator  const_iterator;
+private:
+    std::map<key_type,mapped_type,key_compare> maMap;
+public:
+    iterator begin() { return maMap.begin(); }
+    iterator end() { return maMap.end(); }
+    iterator find(const key_type& key) { return maMap.find(key); }
+    template<class... Args>
+    std::pair<iterator,bool> emplace(Args&&... args) { return maMap.emplace(std::forward<Args>(args)...); }
+    iterator erase(const_iterator const & pos) { return maMap.erase(pos); }
+};
+
+// helper class that stores preview data
+class SwAccPreviewData
+{
+    typedef std::vector<tools::Rectangle> Rectangles;
+    Rectangles maPreviewRects;
+    Rectangles maLogicRects;
+
+    SwRect maVisArea;
+    Fraction maScale;
+
+    const SwPageFrame *mpSelPage;
+
+    /** adjust logic page rectangle to its visible part
+
+        @param _iorLogicPgSwRect
+        input/output parameter - reference to the logic page rectangle, which
+        has to be adjusted.
+
+        @param _rPreviewPgSwRect
+        input parameter - constant reference to the corresponding preview page
+        rectangle; needed to determine the visible part of the logic page rectangle.
+
+        @param _rPreviewWinSize
+        input parameter - constant reference to the preview window size in TWIP;
+        needed to determine the visible part of the logic page rectangle
+    */
+    static void AdjustLogicPgRectToVisibleArea( SwRect&         _iorLogicPgSwRect,
+                                         const SwRect&   _rPreviewPgSwRect,
+                                         const Size&     _rPreviewWinSize );
+
+public:
+    SwAccPreviewData();
+
+    void Update( const SwAccessibleMap& rAccMap,
+                 const std::vector<std::unique_ptr<PreviewPage>>& _rPreviewPages,
+                 const Fraction&  _rScale,
+                 const SwPageFrame* _pSelectedPageFrame,
+                 const Size&      _rPreviewWinSize );
+
+    void InvalidateSelection( const SwPageFrame* _pSelectedPageFrame );
+
+    const SwRect& GetVisArea() const { return maVisArea;}
+
+    /** Adjust the MapMode so that the preview page appears at the
+     * proper position. rPoint identifies the page for which the
+     * MapMode should be adjusted. If bFromPreview is true, rPoint is
+     * a preview coordinate; else it's a document coordinate. */
+    void AdjustMapMode( MapMode& rMapMode,
+                        const Point& rPoint ) const;
+
+    const SwPageFrame *GetSelPage() const { return mpSelPage; }
+
+    void DisposePage(const SwPageFrame *pPageFrame );
+};
+
+SwAccPreviewData::SwAccPreviewData() :
+    mpSelPage( nullptr )
+{
+}
+
+void SwAccPreviewData::Update( const SwAccessibleMap& rAccMap,
+                               const std::vector<std::unique_ptr<PreviewPage>>& _rPreviewPages,
+                               const Fraction&  _rScale,
+                               const SwPageFrame* _pSelectedPageFrame,
+                               const Size&      _rPreviewWinSize )
+{
+    // store preview scaling, maximal preview page size and selected page
+    maScale = _rScale;
+    mpSelPage = _pSelectedPageFrame;
+
+    // prepare loop on preview pages
+    maPreviewRects.clear();
+    maLogicRects.clear();
+    SwAccessibleChild aPage;
+    maVisArea.Clear();
+
+    // loop on preview pages to calculate <maPreviewRects>, <maLogicRects> and
+    // <maVisArea>
+    for ( auto & rpPreviewPage : _rPreviewPages )
+    {
+        aPage = rpPreviewPage->pPage;
+
+        // add preview page rectangle to <maPreviewRects>
+        tools::Rectangle aPreviewPgRect( rpPreviewPage->aPreviewWinPos, rpPreviewPage->aPageSize );
+        maPreviewRects.push_back( aPreviewPgRect );
+
+        // add logic page rectangle to <maLogicRects>
+        SwRect aLogicPgSwRect( aPage.GetBox( rAccMap ) );
+        tools::Rectangle aLogicPgRect( aLogicPgSwRect.SVRect() );
+        maLogicRects.push_back( aLogicPgRect );
+        // union visible area with visible part of logic page rectangle
+        if ( rpPreviewPage->bVisible )
+        {
+            if ( !rpPreviewPage->pPage->IsEmptyPage() )
+            {
+                AdjustLogicPgRectToVisibleArea( aLogicPgSwRect,
+                                                SwRect( aPreviewPgRect ),
+                                                _rPreviewWinSize );
+            }
+            if ( maVisArea.IsEmpty() )
+                maVisArea = aLogicPgSwRect;
+            else
+                maVisArea.Union( aLogicPgSwRect );
+        }
+    }
+}
+
+void SwAccPreviewData::InvalidateSelection( const SwPageFrame* _pSelectedPageFrame )
+{
+    mpSelPage = _pSelectedPageFrame;
+    assert(mpSelPage);
+}
+
+namespace {
+
+struct ContainsPredicate
+{
+    const Point& mrPoint;
+    explicit ContainsPredicate( const Point& rPoint ) : mrPoint(rPoint) {}
+    bool operator() ( const tools::Rectangle& rRect ) const
+    {
+        return rRect.Contains( mrPoint );
+    }
+};
+
+}
+
+void SwAccPreviewData::AdjustMapMode( MapMode& rMapMode,
+                                      const Point& rPoint ) const
+{
+    // adjust scale
+    rMapMode.SetScaleX( maScale );
+    rMapMode.SetScaleY( maScale );
+
+    // find proper rectangle
+    Rectangles::const_iterator aBegin = maLogicRects.begin();
+    Rectangles::const_iterator aEnd = maLogicRects.end();
+    Rectangles::const_iterator aFound = std::find_if( aBegin, aEnd,
+                                                 ContainsPredicate( rPoint ) );
+
+    if( aFound != aEnd )
+    {
+        // found! set new origin
+        Point aPoint = (maPreviewRects.begin() + (aFound - aBegin))->TopLeft();
+        aPoint -= (maLogicRects.begin() + (aFound-aBegin))->TopLeft();
+        rMapMode.SetOrigin( aPoint );
+    }
+    // else: don't adjust MapMode
+}
+
+void SwAccPreviewData::DisposePage(const SwPageFrame *pPageFrame )
+{
+    if( mpSelPage == pPageFrame )
+        mpSelPage = nullptr;
+}
+
+// adjust logic page rectangle to its visible part
+void SwAccPreviewData::AdjustLogicPgRectToVisibleArea(
+                            SwRect&         _iorLogicPgSwRect,
+                            const SwRect&   _rPreviewPgSwRect,
+                            const Size&     _rPreviewWinSize )
+{
+    // determine preview window rectangle
+    const SwRect aPreviewWinSwRect( Point( 0, 0 ), _rPreviewWinSize );
+    // calculate visible preview page rectangle
+    SwRect aVisPreviewPgSwRect( _rPreviewPgSwRect );
+    aVisPreviewPgSwRect.Intersection( aPreviewWinSwRect );
+    // adjust logic page rectangle
+    SwTwips nTmpDiff;
+    // left
+    nTmpDiff = aVisPreviewPgSwRect.Left() - _rPreviewPgSwRect.Left();
+    _iorLogicPgSwRect.AddLeft( nTmpDiff );
+    // top
+    nTmpDiff = aVisPreviewPgSwRect.Top() - _rPreviewPgSwRect.Top();
+    _iorLogicPgSwRect.AddTop( nTmpDiff );
+    // right
+    nTmpDiff = _rPreviewPgSwRect.Right() - aVisPreviewPgSwRect.Right();
+    _iorLogicPgSwRect.AddRight( - nTmpDiff );
+    // bottom
+    nTmpDiff = _rPreviewPgSwRect.Bottom() - aVisPreviewPgSwRect.Bottom();
+    _iorLogicPgSwRect.AddBottom( - nTmpDiff );
+}
+
+static bool AreInSameTable( const uno::Reference< XAccessible >& rAcc,
+                                  const SwFrame *pFrame )
+{
+    bool bRet = false;
+
+    if( pFrame && pFrame->IsCellFrame() && rAcc.is() )
+    {
+        // Is it in the same table? We check that
+        // by comparing the last table frame in the
+        // follow chain, because that's cheaper than
+        // searching the first one.
+        SwAccessibleContext *pAccImpl =
+            static_cast< SwAccessibleContext *>( rAcc.get() );
+        if( pAccImpl->GetFrame()->IsCellFrame() )
+        {
+            const SwTabFrame *pTabFrame1 = pAccImpl->GetFrame()->FindTabFrame();
+            if (pTabFrame1)
+            {
+                while (pTabFrame1->GetFollow())
+                    pTabFrame1 = pTabFrame1->GetFollow();
+            }
+
+            const SwTabFrame *pTabFrame2 = pFrame->FindTabFrame();
+            if (pTabFrame2)
+            {
+                while (pTabFrame2->GetFollow())
+                    pTabFrame2 = pTabFrame2->GetFollow();
+            }
+
+            bRet = (pTabFrame1 == pTabFrame2);
+        }
+    }
+
+    return bRet;
+}
+
+void SwAccessibleMap::FireEvent( const SwAccessibleEvent_Impl& rEvent )
+{
+    ::rtl::Reference < SwAccessibleContext > xAccImpl( rEvent.GetContext() );
+    if (!xAccImpl.is() && rEvent.mpParentFrame != nullptr)
+    {
+        SwAccessibleContextMap_Impl::iterator aIter =
+            mpFrameMap->find( rEvent.mpParentFrame );
+        if( aIter != mpFrameMap->end() )
+        {
+            uno::Reference < XAccessible > xAcc( (*aIter).second );
+            if (xAcc.is())
+            {
+                uno::Reference < XAccessibleContext >  xContext(xAcc,uno::UNO_QUERY);
+                if (xContext.is() && xContext->getAccessibleRole() == AccessibleRole::PARAGRAPH)
+                {
+                    xAccImpl = static_cast< SwAccessibleContext *>( xAcc.get() );
+                }
+            }
+        }
+    }
+    if( SwAccessibleEvent_Impl::SHAPE_SELECTION == rEvent.GetType() )
+    {
+        DoInvalidateShapeSelection();
+    }
+    else if( xAccImpl.is() && xAccImpl->GetFrame() )
+    {
+        if ( rEvent.GetType() != SwAccessibleEvent_Impl::DISPOSE &&
+             rEvent.IsInvalidateTextAttrs() )
+        {
+            xAccImpl->InvalidateAttr();
+        }
+        switch( rEvent.GetType() )
+        {
+        case SwAccessibleEvent_Impl::INVALID_CONTENT:
+            xAccImpl->InvalidateContent();
+            break;
+        case SwAccessibleEvent_Impl::POS_CHANGED:
+            xAccImpl->InvalidatePosOrSize( rEvent.GetOldBox() );
+            break;
+        case SwAccessibleEvent_Impl::CHILD_POS_CHANGED:
+            xAccImpl->InvalidateChildPosOrSize( rEvent.GetFrameOrObj(),
+                                       rEvent.GetOldBox() );
+            break;
+        case SwAccessibleEvent_Impl::DISPOSE:
+            assert(!"dispose event has been stored");
+            break;
+        case SwAccessibleEvent_Impl::INVALID_ATTR:
+            // nothing to do here - handled above
+            break;
+        default:
+            break;
+        }
+        if( SwAccessibleEvent_Impl::DISPOSE != rEvent.GetType() )
+        {
+            if( rEvent.IsUpdateCursorPos() )
+                xAccImpl->InvalidateCursorPos();
+            if( rEvent.IsInvalidateStates() )
+                xAccImpl->InvalidateStates( rEvent.GetStates() );
+            if( rEvent.IsInvalidateRelation() )
+            {
+                // both events CONTENT_FLOWS_FROM_RELATION_CHANGED and
+                // CONTENT_FLOWS_TO_RELATION_CHANGED are possible
+                if ( rEvent.GetAllStates() & AccessibleStates::RELATION_FROM )
+                {
+                    xAccImpl->InvalidateRelation(
+                        AccessibleEventId::CONTENT_FLOWS_FROM_RELATION_CHANGED );
+                }
+                if ( rEvent.GetAllStates() & AccessibleStates::RELATION_TO )
+                {
+                    xAccImpl->InvalidateRelation(
+                        AccessibleEventId::CONTENT_FLOWS_TO_RELATION_CHANGED );
+                }
+            }
+
+            if ( rEvent.IsInvalidateTextSelection() )
+            {
+                xAccImpl->InvalidateTextSelection();
+            }
+        }
+    }
+}
+
+void SwAccessibleMap::AppendEvent( const SwAccessibleEvent_Impl& rEvent )
+{
+    osl::MutexGuard aGuard( maEventMutex );
+
+    if( !mpEvents )
+        mpEvents.reset(new SwAccessibleEventList_Impl);
+    if( !mpEventMap )
+        mpEventMap.reset(new SwAccessibleEventMap_Impl);
+
+    if( mpEvents->IsFiring() )
+    {
+        // While events are fired new ones are generated. They have to be fired
+        // now. This does not work for DISPOSE events!
+        OSL_ENSURE( rEvent.GetType() != SwAccessibleEvent_Impl::DISPOSE,
+                "dispose event while firing events" );
+        FireEvent( rEvent );
+    }
+    else
+    {
+
+        SwAccessibleEventMap_Impl::iterator aIter =
+                                        mpEventMap->find( rEvent.GetFrameOrObj() );
+        if( aIter != mpEventMap->end() )
+        {
+            SwAccessibleEvent_Impl aEvent( *(*aIter).second );
+            assert( aEvent.GetType() != SwAccessibleEvent_Impl::DISPOSE &&
+                    "dispose events should not be stored" );
+            bool bAppendEvent = true;
+            switch( rEvent.GetType() )
+            {
+            case SwAccessibleEvent_Impl::CARET_OR_STATES:
+                // A CARET_OR_STATES event is added to any other
+                // event only. It is broadcasted after any other event, so the
+                // event should be put to the back.
+                OSL_ENSURE( aEvent.GetType() != SwAccessibleEvent_Impl::CHILD_POS_CHANGED,
+                        "invalid event combination" );
+                aEvent.SetStates( rEvent.GetAllStates() );
+                break;
+            case SwAccessibleEvent_Impl::INVALID_CONTENT:
+                // An INVALID_CONTENT event overwrites a CARET_OR_STATES
+                // event (but keeps its flags) and it is contained in a
+                // POS_CHANGED event.
+                // Therefore, the event's type has to be adapted and the event
+                // has to be put at the end.
+                //
+                // fdo#56031 An INVALID_CONTENT event overwrites a INVALID_ATTR
+                // event and overwrites its flags
+                OSL_ENSURE( aEvent.GetType() != SwAccessibleEvent_Impl::CHILD_POS_CHANGED,
+                        "invalid event combination" );
+                if( aEvent.GetType() == SwAccessibleEvent_Impl::CARET_OR_STATES )
+                    aEvent.SetType( SwAccessibleEvent_Impl::INVALID_CONTENT );
+                else if ( aEvent.GetType() == SwAccessibleEvent_Impl::INVALID_ATTR )
+                {
+                    aEvent.SetType( SwAccessibleEvent_Impl::INVALID_CONTENT );
+                    aEvent.SetStates( rEvent.GetAllStates() );
+                }
+
+                break;
+            case SwAccessibleEvent_Impl::POS_CHANGED:
+                // A pos changed event overwrites CARET_STATES (keeping its
+                // flags) as well as INVALID_CONTENT. The old box position
+                // has to be stored however if the old event is not a
+                // POS_CHANGED itself.
+                OSL_ENSURE( aEvent.GetType() != SwAccessibleEvent_Impl::CHILD_POS_CHANGED,
+                        "invalid event combination" );
+                if( aEvent.GetType() != SwAccessibleEvent_Impl::POS_CHANGED )
+                    aEvent.SetOldBox( rEvent.GetOldBox() );
+                aEvent.SetType( SwAccessibleEvent_Impl::POS_CHANGED );
+                break;
+            case SwAccessibleEvent_Impl::CHILD_POS_CHANGED:
+                // CHILD_POS_CHANGED events can only follow CHILD_POS_CHANGED
+                // events. The only action that needs to be done again is
+                // to put the old event to the back. The new one cannot be used,
+                // because we are interested in the old frame bounds.
+                OSL_ENSURE( aEvent.GetType() == SwAccessibleEvent_Impl::CHILD_POS_CHANGED,
+                        "invalid event combination" );
+                break;
+            case SwAccessibleEvent_Impl::SHAPE_SELECTION:
+                OSL_ENSURE( aEvent.GetType() == SwAccessibleEvent_Impl::SHAPE_SELECTION,
+                        "invalid event combination" );
+                break;
+            case SwAccessibleEvent_Impl::DISPOSE:
+                // DISPOSE events overwrite all others. They are not stored
+                // but executed immediately to avoid broadcasting of
+                // nonfunctional objects. So what needs to be done here is to
+                // remove all events for the frame in question.
+                bAppendEvent = false;
+                break;
+            case SwAccessibleEvent_Impl::INVALID_ATTR:
+                OSL_ENSURE( aEvent.GetType() == SwAccessibleEvent_Impl::INVALID_ATTR,
+                        "invalid event combination" );
+                break;
+            }
+            if( bAppendEvent )
+            {
+                mpEvents->erase( (*aIter).second );
+                (*aIter).second = mpEvents->insert( mpEvents->end(), aEvent );
+            }
+            else
+            {
+                mpEvents->erase( (*aIter).second );
+                mpEventMap->erase( aIter );
+            }
+        }
+        else if( SwAccessibleEvent_Impl::DISPOSE != rEvent.GetType() )
+        {
+            mpEventMap->emplace( rEvent.GetFrameOrObj(),
+                    mpEvents->insert( mpEvents->end(), rEvent ) );
+        }
+    }
+}
+
+void SwAccessibleMap::InvalidateCursorPosition(
+        const uno::Reference< XAccessible >& rAcc )
+{
+    SwAccessibleContext *pAccImpl =
+        static_cast< SwAccessibleContext *>( rAcc.get() );
+    assert(pAccImpl);
+    assert(pAccImpl->GetFrame());
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent( SwAccessibleEvent_Impl::CARET_OR_STATES,
+                                       pAccImpl,
+                                       SwAccessibleChild(pAccImpl->GetFrame()),
+                                       AccessibleStates::CARET );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        // While firing events the current frame might have
+        // been disposed because it moved out of the visible area.
+        // Setting the cursor for such frames is useless and even
+        // causes asserts.
+        if( pAccImpl->GetFrame() )
+            pAccImpl->InvalidateCursorPos();
+    }
+}
+
+void SwAccessibleMap::InvalidateShapeSelection()
+{
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent(
+            SwAccessibleEvent_Impl::SHAPE_SELECTION );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        DoInvalidateShapeSelection();
+    }
+}
+
+//This method should implement the following functions:
+//1.find the shape objects and set the selected state.
+//2.find the Swframe objects and set the selected state.
+//3.find the paragraph objects and set the selected state.
+void SwAccessibleMap::InvalidateShapeInParaSelection()
+{
+    std::unique_ptr<SwAccessibleObjShape_Impl[]> pShapes;
+    SwAccessibleObjShape_Impl *pSelShape = nullptr;
+    size_t nShapes = 0;
+
+    const SwViewShell *pVSh = GetShell();
+    const SwFEShell *pFESh = dynamic_cast<const SwFEShell*>(pVSh);
+    SwPaM* pCursor = pFESh ? pFESh->GetCursor( false /* ??? */ ) : nullptr;
+
+    //const size_t nSelShapes = pFESh ? pFESh->IsObjSelected() : 0;
+
+    {
+        osl::MutexGuard aGuard( maMutex );
+        if( mpShapeMap )
+            pShapes = mpShapeMap->Copy( nShapes, pFESh, &pSelShape );
+    }
+
+    bool bIsSelAll =IsDocumentSelAll();
+
+    if( mpShapeMap )
+    {
+        //Checked for shapes.
+        SwAccessibleShapeMap_Impl::const_iterator aIter = mpShapeMap->cbegin();
+        SwAccessibleShapeMap_Impl::const_iterator aEndIter = mpShapeMap->cend();
+
+        if( bIsSelAll)
+        {
+            while( aIter != aEndIter )
+            {
+                uno::Reference < XAccessible > xAcc( (*aIter).second );
+                if( xAcc.is() )
+                    static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->SetState( AccessibleStateType::SELECTED );
+
+                ++aIter;
+            }
+        }
+        else
+        {
+            while( aIter != aEndIter )
+            {
+                const SwFrameFormat *pFrameFormat = (*aIter).first ? ::FindFrameFormat( (*aIter).first ) : nullptr;
+                if( !pFrameFormat )
+                {
+                    ++aIter;
+                    continue;
+                }
+                const SwFormatAnchor& rAnchor = pFrameFormat->GetAnchor();
+                const SwPosition *pPos = rAnchor.GetContentAnchor();
+
+                if(rAnchor.GetAnchorId() == RndStdIds::FLY_AT_PAGE)
+                {
+                    uno::Reference < XAccessible > xAcc( (*aIter).second );
+                    if(xAcc.is())
+                        static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->ResetState( AccessibleStateType::SELECTED );
+
+                    ++aIter;
+                    continue;
+                }
+
+                if( !pPos )
+                {
+                    ++aIter;
+                    continue;
+                }
+                if( pPos->nNode.GetNode().GetTextNode() )
+                {
+                    int nIndex = pPos->nContent.GetIndex();
+                    bool bMarked = false;
+                    if( pCursor != nullptr )
+                    {
+                        const SwTextNode* pNode = pPos->nNode.GetNode().GetTextNode();
+                        SwTextFrame const*const pFrame(static_cast<SwTextFrame*>(pNode->getLayoutFrame(pVSh->GetLayout())));
+                        SwNodeOffset nFirstNode(pFrame->GetTextNodeFirst()->GetIndex());
+                        SwNodeOffset nLastNode;
+                        if (sw::MergedPara const*const pMerged = pFrame->GetMergedPara())
+                        {
+                            nLastNode = pMerged->pLastNode->GetIndex();
+                        }
+                        else
+                        {
+                            nLastNode = nFirstNode;
+                        }
+
+                        SwNodeOffset nHere = pNode->GetIndex();
+
+                        for(SwPaM& rTmpCursor : pCursor->GetRingContainer())
+                        {
+                            // ignore, if no mark
+                            if( rTmpCursor.HasMark() )
+                            {
+                                bMarked = true;
+                                // check whether nHere is 'inside' pCursor
+                                SwPosition* pStart = rTmpCursor.Start();
+                                SwNodeOffset nStartIndex = pStart->nNode.GetIndex();
+                                SwPosition* pEnd = rTmpCursor.End();
+                                SwNodeOffset nEndIndex = pEnd->nNode.GetIndex();
+                                if ((nStartIndex <= nLastNode) && (nFirstNode <= nEndIndex))
+                                {
+                                    if( rAnchor.GetAnchorId() == RndStdIds::FLY_AS_CHAR )
+                                    {
+                                        if( ( ((nHere == nStartIndex) && (nIndex >= pStart->nContent.GetIndex())) || (nHere > nStartIndex) )
+                                            &&( ((nHere == nEndIndex) && (nIndex < pEnd->nContent.GetIndex())) || (nHere < nEndIndex) ) )
+                                        {
+                                            uno::Reference < XAccessible > xAcc( (*aIter).second );
+                                            if( xAcc.is() )
+                                                static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->SetState( AccessibleStateType::SELECTED );
+                                        }
+                                        else
+                                        {
+                                            uno::Reference < XAccessible > xAcc( (*aIter).second );
+                                            if( xAcc.is() )
+                                                static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->ResetState( AccessibleStateType::SELECTED );
+                                        }
+                                    }
+                                    else if( rAnchor.GetAnchorId() == RndStdIds::FLY_AT_PARA )
+                                    {
+                                        uno::Reference<XAccessible> const xAcc((*aIter).second);
+                                        if (xAcc.is())
+                                        {
+                                            if (IsSelectFrameAnchoredAtPara(*pPos, *pStart, *pEnd))
+                                            {
+                                                static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->SetState( AccessibleStateType::SELECTED );
+                                            }
+                                            else
+                                            {
+                                                static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->ResetState( AccessibleStateType::SELECTED );
+                                            }
+                                        }
+                                    }
+                                    else if (rAnchor.GetAnchorId() == RndStdIds::FLY_AT_CHAR)
+                                    {
+                                        uno::Reference<XAccessible> const xAcc((*aIter).second);
+                                        if (xAcc.is())
+                                        {
+                                            if (IsDestroyFrameAnchoredAtChar(*pPos, *pStart, *pEnd))
+                                            {
+                                                static_cast<::accessibility::AccessibleShape*>(xAcc.get())->SetState( AccessibleStateType::SELECTED );
+                                            }
+                                            else
+                                            {
+                                                static_cast<::accessibility::AccessibleShape*>(xAcc.get())->ResetState( AccessibleStateType::SELECTED );
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    if( !bMarked )
+                    {
+                        SwAccessibleObjShape_Impl  *pShape = pShapes.get();
+                        size_t nNumShapes = nShapes;
+                        while( nNumShapes )
+                        {
+                            if( pShape < pSelShape && (pShape->first==(*aIter).first) )
+                            {
+                                uno::Reference < XAccessible > xAcc( (*aIter).second );
+                                if(xAcc.is())
+                                    static_cast < ::accessibility::AccessibleShape* >(xAcc.get())->ResetState( AccessibleStateType::SELECTED );
+                            }
+                            --nNumShapes;
+                            ++pShape;
+                        }
+                    }
+                }
+
+                ++aIter;
+            }//while( aIter != aEndIter )
+        }//else
+    }
+
+    pShapes.reset();
+
+    //Checked for FlyFrame
+    if (mpFrameMap)
+    {
+        SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->begin();
+        while( aIter != mpFrameMap->end() )
+        {
+            const SwFrame *pFrame = (*aIter).first;
+            if(pFrame->IsFlyFrame())
+            {
+                uno::Reference < XAccessible > xAcc = (*aIter).second;
+
+                if(xAcc.is())
+                {
+                    SwAccessibleFrameBase *pAccFrame = static_cast< SwAccessibleFrameBase * >(xAcc.get());
+                    bool bFrameChanged = pAccFrame->SetSelectedState( true );
+                    if (bFrameChanged)
+                    {
+                        const SwFlyFrame *pFlyFrame = static_cast< const SwFlyFrame * >( pFrame );
+                        const SwFrameFormat *pFrameFormat = pFlyFrame->GetFormat();
+                        if (pFrameFormat)
+                        {
+                            const SwFormatAnchor& rAnchor = pFrameFormat->GetAnchor();
+                            if( rAnchor.GetAnchorId() == RndStdIds::FLY_AS_CHAR )
+                            {
+                                uno::Reference< XAccessible > xAccParent = pAccFrame->getAccessibleParent();
+                                if (xAccParent.is())
+                                {
+                                    uno::Reference< XAccessibleContext > xAccContext = xAccParent->getAccessibleContext();
+                                    if(xAccContext.is() && xAccContext->getAccessibleRole() == AccessibleRole::PARAGRAPH)
+                                    {
+                                        SwAccessibleParagraph* pAccPara = static_cast< SwAccessibleParagraph *>(xAccContext.get());
+                                        if(pAccFrame->IsSelectedInDoc())
+                                        {
+                                            m_setParaAdd.insert(pAccPara);
+                                        }
+                                        else if(m_setParaAdd.count(pAccPara) == 0)
+                                        {
+                                            m_setParaRemove.insert(pAccPara);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            ++aIter;
+        }
+    }
+
+    typedef std::vector< SwAccessibleContext* > VEC_PARA;
+    VEC_PARA vecAdd;
+    VEC_PARA vecRemove;
+    //Checked for Paras.
+    bool bMarkChanged = false;
+    SwAccessibleContextMap_Impl mapTemp;
+    if( pCursor != nullptr )
+    {
+        for(SwPaM& rTmpCursor : pCursor->GetRingContainer())
+        {
+            if( rTmpCursor.HasMark() )
+            {
+                SwNodeIndex nStartIndex( rTmpCursor.Start()->nNode );
+                SwNodeIndex nEndIndex( rTmpCursor.End()->nNode );
+                for (; nStartIndex <= nEndIndex; ++nStartIndex)
+                {
+                    SwFrame *pFrame = nullptr;
+                    if(nStartIndex.GetNode().IsContentNode())
+                    {
+                        SwContentNode* pCNd = static_cast<SwContentNode*>(&(nStartIndex.GetNode()));
+                        pFrame = SwIterator<SwFrame, SwContentNode, sw::IteratorMode::UnwrapMulti>(*pCNd).First();
+                        if (mapTemp.find(pFrame) != mapTemp.end())
+                        {
+                            continue; // sw_redlinehide: once is enough
+                        }
+                    }
+                    else if( nStartIndex.GetNode().IsTableNode() )
+                    {
+                        SwTableNode * pTable = static_cast<SwTableNode *>(&(nStartIndex.GetNode()));
+                        SwTableFormat* pFormat = pTable->GetTable().GetFrameFormat();
+                        pFrame = SwIterator<SwFrame, SwTableFormat>(*pFormat).First();
+                    }
+
+                    if( pFrame && mpFrameMap)
+                    {
+                        SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->find( pFrame );
+                        if( aIter != mpFrameMap->end() )
+                        {
+                            uno::Reference < XAccessible > xAcc = (*aIter).second;
+                            bool isChanged = false;
+                            if( xAcc.is() )
+                            {
+                                isChanged = static_cast< SwAccessibleContext * >(xAcc.get())->SetSelectedState( true );
+                            }
+                            if(!isChanged)
+                            {
+                                SwAccessibleContextMap_Impl::iterator aEraseIter = mpSelectedFrameMap->find( pFrame );
+                                if(aEraseIter != mpSelectedFrameMap->end())
+                                    mpSelectedFrameMap->erase(aEraseIter);
+                            }
+                            else
+                            {
+                                bMarkChanged = true;
+                                vecAdd.push_back(static_cast< SwAccessibleContext * >(xAcc.get()));
+                            }
+
+                            mapTemp.emplace( pFrame, xAcc );
+                        }
+                    }
+                }
+            }
+        }
+    }
+    if( !mpSelectedFrameMap )
+        mpSelectedFrameMap.reset( new SwAccessibleContextMap_Impl );
+    if( !mpSelectedFrameMap->empty() )
+    {
+        SwAccessibleContextMap_Impl::iterator aIter = mpSelectedFrameMap->begin();
+        while( aIter != mpSelectedFrameMap->end() )
+        {
+            uno::Reference < XAccessible > xAcc = (*aIter).second;
+            if(xAcc.is())
+                static_cast< SwAccessibleContext * >(xAcc.get())->SetSelectedState( false );
+            ++aIter;
+            vecRemove.push_back(static_cast< SwAccessibleContext * >(xAcc.get()));
+        }
+        bMarkChanged = true;
+        mpSelectedFrameMap->clear();
+    }
+
+    SwAccessibleContextMap_Impl::iterator aIter = mapTemp.begin();
+    while( aIter != mapTemp.end() )
+    {
+        mpSelectedFrameMap->emplace( (*aIter).first, (*aIter).second );
+        ++aIter;
+    }
+    mapTemp.clear();
+
+    if( !(bMarkChanged && mpFrameMap))
+        return;
+
+    for (SwAccessibleContext* pAccPara : vecAdd)
+    {
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED;
+        if (pAccPara)
+        {
+            pAccPara->FireAccessibleEvent( aEvent );
+        }
+    }
+    for (SwAccessibleContext* pAccPara : vecRemove)
+    {
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_REMOVE;
+        if (pAccPara)
+        {
+            pAccPara->FireAccessibleEvent( aEvent );
+        }
+    }
+}
+
+//Merge with DoInvalidateShapeFocus
+void SwAccessibleMap::DoInvalidateShapeSelection(bool bInvalidateFocusMode /*=false*/)
+{
+    std::unique_ptr<SwAccessibleObjShape_Impl[]> pShapes;
+    SwAccessibleObjShape_Impl *pSelShape = nullptr;
+    size_t nShapes = 0;
+
+    const SwViewShell *pVSh = GetShell();
+    const SwFEShell *pFESh = dynamic_cast<const SwFEShell*>(pVSh);
+    const size_t nSelShapes = pFESh ? pFESh->IsObjSelected() : 0;
+
+    //when InvalidateFocus Call this function ,and the current selected shape count is not 1 ,
+    //return
+    if (bInvalidateFocusMode && nSelShapes != 1)
+    {
+        return;
+    }
+    {
+        osl::MutexGuard aGuard( maMutex );
+        if( mpShapeMap )
+            pShapes = mpShapeMap->Copy( nShapes, pFESh, &pSelShape );
+    }
+
+    if( !pShapes )
+        return;
+
+    typedef std::vector< ::rtl::Reference < ::accessibility::AccessibleShape >  >  VEC_SHAPE;
+    VEC_SHAPE vecxShapeAdd;
+    VEC_SHAPE vecxShapeRemove;
+    int nCountSelectedShape=0;
+
+    vcl::Window *pWin = GetShell()->GetWin();
+    bool bFocused = pWin && pWin->HasFocus();
+    SwAccessibleObjShape_Impl *pShape = pShapes.get();
+    int nShapeCount = nShapes;
+    while( nShapeCount )
+    {
+        if (pShape->second.is() && IsInSameLevel(pShape->first, pFESh))
+        {
+            if( pShape < pSelShape )
+            {
+                if(pShape->second->ResetState( AccessibleStateType::SELECTED ))
+                {
+                    vecxShapeRemove.push_back(pShape->second);
+                }
+                pShape->second->ResetState( AccessibleStateType::FOCUSED );
+            }
+        }
+        --nShapeCount;
+        ++pShape;
+    }
+
+    for (const auto& rpShape : vecxShapeRemove)
+    {
+        ::accessibility::AccessibleShape *pAccShape = rpShape.get();
+        if (pAccShape)
+        {
+            pAccShape->CommitChange(AccessibleEventId::SELECTION_CHANGED_REMOVE, uno::Any(), uno::Any());
+        }
+    }
+
+    pShape = pShapes.get();
+
+    while( nShapes )
+    {
+        if (pShape->second.is() && IsInSameLevel(pShape->first, pFESh))
+        {
+            if( pShape >= pSelShape )
+            {
+                //first fire focus event
+                if( bFocused && 1 == nSelShapes )
+                    pShape->second->SetState( AccessibleStateType::FOCUSED );
+                else
+                    pShape->second->ResetState( AccessibleStateType::FOCUSED );
+
+                if(pShape->second->SetState( AccessibleStateType::SELECTED ))
+                {
+                    vecxShapeAdd.push_back(pShape->second);
+                }
+                ++nCountSelectedShape;
+            }
+        }
+
+        --nShapes;
+        ++pShape;
+    }
+
+    const unsigned int SELECTION_WITH_NUM = 10;
+    if (vecxShapeAdd.size() > SELECTION_WITH_NUM )
+    {
+         uno::Reference< XAccessible > xDoc = GetDocumentView( );
+         SwAccessibleContext * pCont = static_cast<SwAccessibleContext *>(xDoc.get());
+         if (pCont)
+         {
+             AccessibleEventObject aEvent;
+             aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_WITHIN;
+             pCont->FireAccessibleEvent(aEvent);
+         }
+    }
+    else
+    {
+        short nEventID = AccessibleEventId::SELECTION_CHANGED_ADD;
+        if (nCountSelectedShape <= 1 && vecxShapeAdd.size() == 1 )
+        {
+            nEventID = AccessibleEventId::SELECTION_CHANGED;
+        }
+        for (const auto& rpShape : vecxShapeAdd)
+        {
+            ::accessibility::AccessibleShape *pAccShape = rpShape.get();
+            if (pAccShape)
+            {
+                pAccShape->CommitChange(nEventID, uno::Any(), uno::Any());
+            }
+        }
+    }
+
+    for (const auto& rpShape : vecxShapeAdd)
+    {
+        ::accessibility::AccessibleShape *pAccShape = rpShape.get();
+        if (pAccShape)
+        {
+            SdrObject *pObj = SdrObject::getSdrObjectFromXShape(pAccShape->GetXShape());
+            SwFrameFormat *pFrameFormat = pObj ? FindFrameFormat( pObj ) : nullptr;
+            if (pFrameFormat)
+            {
+                const SwFormatAnchor& rAnchor = pFrameFormat->GetAnchor();
+                if( rAnchor.GetAnchorId() == RndStdIds::FLY_AS_CHAR )
+                {
+                    uno::Reference< XAccessible > xPara = pAccShape->getAccessibleParent();
+                    if (xPara.is())
+                    {
+                        uno::Reference< XAccessibleContext > xParaContext = xPara->getAccessibleContext();
+                        if (xParaContext.is() && xParaContext->getAccessibleRole() == AccessibleRole::PARAGRAPH)
+                        {
+                            SwAccessibleParagraph* pAccPara = static_cast< SwAccessibleParagraph *>(xPara.get());
+                            if (pAccPara)
+                            {
+                                m_setParaAdd.insert(pAccPara);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    for (const auto& rpShape : vecxShapeRemove)
+    {
+        ::accessibility::AccessibleShape *pAccShape = rpShape.get();
+        if (pAccShape && !pAccShape->IsDisposed())
+        {
+            uno::Reference< XAccessible > xPara = pAccShape->getAccessibleParent();
+            uno::Reference< XAccessibleContext > xParaContext = xPara->getAccessibleContext();
+            if (xParaContext.is() && xParaContext->getAccessibleRole() == AccessibleRole::PARAGRAPH)
+            {
+                SwAccessibleParagraph* pAccPara = static_cast< SwAccessibleParagraph *>(xPara.get());
+                if (m_setParaAdd.count(pAccPara) == 0 )
+                {
+                    m_setParaRemove.insert(pAccPara);
+                }
+            }
+        }
+    }
+}
+
+SwAccessibleMap::SwAccessibleMap( SwViewShell *pSh ) :
+    mpVSh( pSh ),
+    mbShapeSelected( false ),
+    maDocName(SwAccessibleContext::GetResource(STR_ACCESS_DOC_NAME))
+{
+    pSh->GetLayout()->AddAccessibleShell();
+}
+
+SwAccessibleMap::~SwAccessibleMap()
+{
+    DBG_TESTSOLARMUTEX();
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+        if( mpFrameMap )
+        {
+            const SwRootFrame *pRootFrame = GetShell()->GetLayout();
+            SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->find( pRootFrame );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+            if( !xAcc.is() )
+                assert(false); // let's hope this can't happen? the vcl::Window apparently owns the top-level
+                //xAcc = new SwAccessibleDocument(shared_from_this());
+        }
+    }
+
+    if(xAcc.is())
+    {
+        SwAccessibleDocumentBase *const pAcc =
+            static_cast<SwAccessibleDocumentBase *>(xAcc.get());
+        pAcc->Dispose( true );
+    }
+#if OSL_DEBUG_LEVEL > 0 && !defined NDEBUG
+    if( mpFrameMap )
+    {
+        SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->begin();
+        while( aIter != mpFrameMap->end() )
+        {
+            uno::Reference < XAccessible > xTmp = (*aIter).second;
+            if( xTmp.is() )
+            {
+                SwAccessibleContext *pTmp = static_cast< SwAccessibleContext * >( xTmp.get() );
+                assert(pTmp->GetMap() == nullptr); // must be disposed
+            }
+            ++aIter;
+        }
+    }
+#endif
+    {
+        osl::MutexGuard aGuard( maMutex );
+        assert((!mpFrameMap || mpFrameMap->empty()) &&
+                "Frame map should be empty after disposing the root frame");
+        assert((!mpShapeMap || mpShapeMap->empty()) &&
+                "Object map should be empty after disposing the root frame");
+        mpFrameMap.reset();
+        mpShapeMap.reset();
+        mvShapes.clear();
+        mpSelectedParas.reset();
+    }
+
+    mpPreview.reset();
+
+    {
+        osl::MutexGuard aGuard( maEventMutex );
+        assert(!mpEvents);
+        assert(!mpEventMap);
+        mpEventMap.reset();
+        mpEvents.reset();
+    }
+    mpVSh->GetLayout()->RemoveAccessibleShell();
+}
+
+uno::Reference< XAccessible > SwAccessibleMap::GetDocumentView_(
+    bool bPagePreview )
+{
+    uno::Reference < XAccessible > xAcc;
+    bool bSetVisArea = false;
+
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( !mpFrameMap )
+        {
+            mpFrameMap.reset(new SwAccessibleContextMap_Impl);
+#if OSL_DEBUG_LEVEL > 0
+            mpFrameMap->mbLocked = false;
+#endif
+        }
+
+#if OSL_DEBUG_LEVEL > 0
+        assert(!mpFrameMap->mbLocked);
+        mpFrameMap->mbLocked = true;
+#endif
+
+        const SwRootFrame *pRootFrame = GetShell()->GetLayout();
+        SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->find( pRootFrame );
+        if( aIter != mpFrameMap->end() )
+            xAcc = (*aIter).second;
+        if( xAcc.is() )
+        {
+            bSetVisArea = true; // Set VisArea when map mutex is not locked
+        }
+        else
+        {
+            if( bPagePreview )
+                xAcc = new SwAccessiblePreview(shared_from_this());
+            else
+                xAcc = new SwAccessibleDocument(shared_from_this());
+
+            if( aIter != mpFrameMap->end() )
+            {
+                (*aIter).second = xAcc;
+            }
+            else
+            {
+                mpFrameMap->emplace( pRootFrame, xAcc );
+            }
+        }
+
+#if OSL_DEBUG_LEVEL > 0
+        mpFrameMap->mbLocked = false;
+#endif
+    }
+
+    if( bSetVisArea )
+    {
+        SwAccessibleDocumentBase *pAcc =
+            static_cast< SwAccessibleDocumentBase * >( xAcc.get() );
+        pAcc->SetVisArea();
+    }
+
+    return xAcc;
+}
+
+uno::Reference< XAccessible > SwAccessibleMap::GetDocumentView( )
+{
+    return GetDocumentView_( false );
+}
+
+uno::Reference<XAccessible> SwAccessibleMap::GetDocumentPreview(
+                                    const std::vector<std::unique_ptr<PreviewPage>>& _rPreviewPages,
+                                    const Fraction&  _rScale,
+                                    const SwPageFrame* _pSelectedPageFrame,
+                                    const Size&      _rPreviewWinSize )
+{
+    // create & update preview data object
+    if( mpPreview == nullptr )
+        mpPreview.reset( new SwAccPreviewData() );
+    mpPreview->Update( *this, _rPreviewPages, _rScale, _pSelectedPageFrame, _rPreviewWinSize );
+
+    uno::Reference<XAccessible> xAcc = GetDocumentView_( true );
+    return xAcc;
+}
+
+uno::Reference< XAccessible> SwAccessibleMap::GetContext( const SwFrame *pFrame,
+                                                     bool bCreate )
+{
+    DBG_TESTSOLARMUTEX();
+    uno::Reference < XAccessible > xAcc;
+    uno::Reference < XAccessible > xOldCursorAcc;
+    bool bOldShapeSelected = false;
+
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( !mpFrameMap && bCreate )
+            mpFrameMap.reset(new SwAccessibleContextMap_Impl);
+        if( mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->find( pFrame );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+
+            if( !xAcc.is() && bCreate )
+            {
+                rtl::Reference<SwAccessibleContext> pAcc;
+                switch( pFrame->GetType() )
+                {
+                case SwFrameType::Txt:
+                    pAcc = new SwAccessibleParagraph(shared_from_this(),
+                                    static_cast< const SwTextFrame& >( *pFrame ) );
+                    break;
+                case SwFrameType::Header:
+                    pAcc = new SwAccessibleHeaderFooter(shared_from_this(),
+                                    static_cast< const SwHeaderFrame *>( pFrame ) );
+                    break;
+                case SwFrameType::Footer:
+                    pAcc = new SwAccessibleHeaderFooter(shared_from_this(),
+                                    static_cast< const SwFooterFrame *>( pFrame ) );
+                    break;
+                case SwFrameType::Ftn:
+                    {
+                        const SwFootnoteFrame *pFootnoteFrame =
+                            static_cast < const SwFootnoteFrame * >( pFrame );
+                        bool bIsEndnote =
+                            SwAccessibleFootnote::IsEndnote( pFootnoteFrame );
+                        pAcc = new SwAccessibleFootnote(shared_from_this(), bIsEndnote,
+                                    /*(bIsEndnote ? mnEndnote++ : mnFootnote++),*/
+                                    pFootnoteFrame );
+                    }
+                    break;
+                case SwFrameType::Fly:
+                    {
+                        const SwFlyFrame *pFlyFrame =
+                            static_cast < const SwFlyFrame * >( pFrame );
+                        switch( SwAccessibleFrameBase::GetNodeType( pFlyFrame ) )
+                        {
+                        case SwNodeType::Grf:
+                            pAcc = new SwAccessibleGraphic(shared_from_this(), pFlyFrame );
+                            break;
+                        case SwNodeType::Ole:
+                            pAcc = new SwAccessibleEmbeddedObject(shared_from_this(), pFlyFrame );
+                            break;
+                        default:
+                            pAcc = new SwAccessibleTextFrame(shared_from_this(), *pFlyFrame );
+                            break;
+                        }
+                    }
+                    break;
+                case SwFrameType::Cell:
+                    pAcc = new SwAccessibleCell(shared_from_this(),
+                                    static_cast< const SwCellFrame *>( pFrame ) );
+                    break;
+                case SwFrameType::Tab:
+                    pAcc = new SwAccessibleTable(shared_from_this(),
+                                    static_cast< const SwTabFrame *>( pFrame ) );
+                    break;
+                case SwFrameType::Page:
+                    OSL_ENSURE( GetShell()->IsPreview(),
+                                "accessible page frames only in PagePreview" );
+                    pAcc = new SwAccessiblePage(shared_from_this(), pFrame);
+                    break;
+                default: break;
+                }
+                xAcc = pAcc;
+                assert(xAcc.is());
+
+                if( aIter != mpFrameMap->end() )
+                {
+                    (*aIter).second = xAcc;
+                }
+                else
+                {
+                    mpFrameMap->emplace( pFrame, xAcc );
+                }
+
+                if( pAcc->HasCursor() &&
+                    !AreInSameTable( mxCursorContext, pFrame ) )
+                {
+                    // If the new context has the focus, and if we know
+                    // another context that had the focus, then the focus
+                    // just moves from the old context to the new one. We
+                    // then have to send a focus event and a caret event for
+                    // the old context. We have to do that now,
+                    // because after we have left this method, anyone might
+                    // call getStates for the new context and will get a
+                    // focused state then. Sending the focus changes event
+                    // after that seems to be strange. However, we cannot
+                    // send a focus event for the new context now, because
+                    // no one except us knows it. In any case, we remember
+                    // the new context as the one that has the focus
+                    // currently.
+
+                    xOldCursorAcc = mxCursorContext;
+                    mxCursorContext = xAcc;
+
+                    bOldShapeSelected = mbShapeSelected;
+                    mbShapeSelected = false;
+                }
+            }
+        }
+    }
+
+    // Invalidate focus for old object when map is not locked
+    if( xOldCursorAcc.is() )
+        InvalidateCursorPosition( xOldCursorAcc );
+    if( bOldShapeSelected )
+        InvalidateShapeSelection();
+
+    return xAcc;
+}
+
+::rtl::Reference < SwAccessibleContext > SwAccessibleMap::GetContextImpl(
+            const SwFrame *pFrame,
+            bool bCreate )
+{
+    uno::Reference < XAccessible > xAcc( GetContext( pFrame, bCreate ) );
+
+    ::rtl::Reference < SwAccessibleContext > xAccImpl(
+         static_cast< SwAccessibleContext * >( xAcc.get() ) );
+
+    return xAccImpl;
+}
+
+uno::Reference< XAccessible> SwAccessibleMap::GetContext(
+        const SdrObject *pObj,
+        SwAccessibleContext *pParentImpl,
+        bool bCreate )
+{
+    uno::Reference < XAccessible > xAcc;
+    uno::Reference < XAccessible > xOldCursorAcc;
+
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( !mpShapeMap && bCreate )
+            mpShapeMap.reset(new SwAccessibleShapeMap_Impl( this ));
+        if( mpShapeMap )
+        {
+            SwAccessibleShapeMap_Impl::iterator aIter = mpShapeMap->find( pObj );
+            if( aIter != mpShapeMap->end() )
+                xAcc = (*aIter).second;
+
+            if( !xAcc.is() && bCreate )
+            {
+                rtl::Reference< ::accessibility::AccessibleShape> pAcc;
+                uno::Reference < drawing::XShape > xShape(
+                    const_cast< SdrObject * >( pObj )->getUnoShape(),
+                    uno::UNO_QUERY );
+                if( xShape.is() )
+                {
+                    ::accessibility::ShapeTypeHandler& rShapeTypeHandler =
+                                ::accessibility::ShapeTypeHandler::Instance();
+                    uno::Reference < XAccessible > xParent( pParentImpl );
+                    ::accessibility::AccessibleShapeInfo aShapeInfo(
+                            xShape, xParent, this );
+
+                    pAcc = rShapeTypeHandler.CreateAccessibleObject(
+                                aShapeInfo, mpShapeMap->GetInfo() );
+                }
+                xAcc = pAcc.get();
+                assert(xAcc.is());
+                pAcc->Init();
+                if( aIter != mpShapeMap->end() )
+                {
+                    (*aIter).second = xAcc;
+                }
+                else
+                {
+                    mpShapeMap->emplace( pObj, xAcc );
+                }
+                // TODO: focus!!!
+                AddGroupContext(pObj, xAcc);
+            }
+        }
+    }
+
+    // Invalidate focus for old object when map is not locked
+    if( xOldCursorAcc.is() )
+        InvalidateCursorPosition( xOldCursorAcc );
+
+    return xAcc;
+}
+
+bool SwAccessibleMap::IsInSameLevel(const SdrObject* pObj, const SwFEShell* pFESh)
+{
+    if (pFESh)
+        return pFESh->IsObjSameLevelWithMarked(pObj);
+    return false;
+}
+
+void SwAccessibleMap::AddShapeContext(const SdrObject *pObj, uno::Reference < XAccessible > const & xAccShape)
+{
+    osl::MutexGuard aGuard( maMutex );
+
+    if( mpShapeMap )
+    {
+        mpShapeMap->emplace( pObj, xAccShape );
+    }
+
+}
+
+//Added by yanjun for sym2_6407
+void SwAccessibleMap::RemoveGroupContext(const SdrObject *pParentObj)
+{
+    osl::MutexGuard aGuard( maMutex );
+    // TODO: Why are sub-shapes of group shapes even added to our map?
+    //       Doesn't the AccessibleShape of the top-level shape create them
+    //       on demand anyway? Why does SwAccessibleMap need to know them?
+    // We cannot rely on getAccessibleChild here to remove the sub-shapes
+    // from mpShapes because the top-level shape may not only be disposed here
+    // but also by visibility checks in svx, then it doesn't return children.
+    if (mpShapeMap && pParentObj && pParentObj->IsGroupObject())
+    {
+        SdrObjList *const pChildren(pParentObj->GetSubList());
+        for (size_t i = 0; pChildren && i < pChildren->GetObjCount(); ++i)
+        {
+            SdrObject *const pChild(pChildren->GetObj(i));
+            assert(pChild);
+            RemoveContext(pChild);
+        }
+    }
+}
+//End
+
+void SwAccessibleMap::AddGroupContext(const SdrObject *pParentObj, uno::Reference < XAccessible > const & xAccParent)
+{
+    osl::MutexGuard aGuard( maMutex );
+    if( !mpShapeMap )
+        return;
+
+    //here get all the sub list.
+    if (!pParentObj->IsGroupObject())
+        return;
+
+    if (!xAccParent.is())
+        return;
+
+    uno::Reference < XAccessibleContext > xContext = xAccParent->getAccessibleContext();
+    if (!xContext.is())
+        return;
+
+    sal_Int32 nChildren = xContext->getAccessibleChildCount();
+    for(sal_Int32 i = 0; i<nChildren; i++)
+    {
+        uno::Reference < XAccessible > xChild = xContext->getAccessibleChild(i);
+        if (xChild.is())
+        {
+            uno::Reference < XAccessibleContext > xChildContext = xChild->getAccessibleContext();
+            if (xChildContext.is())
+            {
+                short nRole = xChildContext->getAccessibleRole();
+                if (nRole == AccessibleRole::SHAPE)
+                {
+                    ::accessibility::AccessibleShape* pAccShape = static_cast < ::accessibility::AccessibleShape* >( xChild.get());
+                    uno::Reference < drawing::XShape > xShape = pAccShape->GetXShape();
+                    if (xShape.is())
+                    {
+                        SdrObject* pObj = SdrObject::getSdrObjectFromXShape(xShape);
+                        AddShapeContext(pObj, xChild);
+                        AddGroupContext(pObj,xChild);
+                    }
+                }
+            }
+        }
+    }
+}
+
+::rtl::Reference < ::accessibility::AccessibleShape > SwAccessibleMap::GetContextImpl(
+            const SdrObject *pObj,
+            SwAccessibleContext *pParentImpl,
+            bool bCreate )
+{
+    uno::Reference < XAccessible > xAcc( GetContext( pObj, pParentImpl, bCreate ) );
+
+    ::rtl::Reference < ::accessibility::AccessibleShape > xAccImpl(
+         static_cast< ::accessibility::AccessibleShape* >( xAcc.get() ) );
+
+    return xAccImpl;
+}
+
+void SwAccessibleMap::RemoveContext( const SwFrame *pFrame )
+{
+    osl::MutexGuard aGuard( maMutex );
+
+    if( !mpFrameMap )
+        return;
+
+    SwAccessibleContextMap_Impl::iterator aIter =
+        mpFrameMap->find( pFrame );
+    if( aIter == mpFrameMap->end() )
+        return;
+
+    mpFrameMap->erase( aIter );
+
+    // Remove reference to old caret object. Though mxCursorContext
+    // is a weak reference and cleared automatically, clearing it
+    // directly makes sure to not keep a non-functional object.
+    uno::Reference < XAccessible > xOldAcc( mxCursorContext );
+    if( xOldAcc.is() )
+    {
+        SwAccessibleContext *pOldAccImpl =
+            static_cast< SwAccessibleContext *>( xOldAcc.get() );
+        OSL_ENSURE( pOldAccImpl->GetFrame(), "old caret context is disposed" );
+        if( pOldAccImpl->GetFrame() == pFrame )
+        {
+            xOldAcc.clear();    // get an empty ref
+            mxCursorContext = xOldAcc;
+        }
+    }
+
+    if( mpFrameMap->empty() )
+    {
+        mpFrameMap.reset();
+    }
+}
+
+void SwAccessibleMap::RemoveContext( const SdrObject *pObj )
+{
+    osl::MutexGuard aGuard( maMutex );
+
+    if( !mpShapeMap )
+        return;
+
+    SwAccessibleShapeMap_Impl::iterator aIter = mpShapeMap->find( pObj );
+    if( aIter == mpShapeMap->end() )
+        return;
+
+    uno::Reference < XAccessible > xTempHold( (*aIter).second );
+    mpShapeMap->erase( aIter );
+    RemoveGroupContext(pObj);
+    // The shape selection flag is not cleared, but one might do
+    // so but has to make sure that the removed context is the one
+    // that is selected.
+
+    if( mpShapeMap && mpShapeMap->empty() )
+    {
+        mpShapeMap.reset();
+    }
+}
+
+bool SwAccessibleMap::Contains(const SwFrame *pFrame) const
+{
+    return (pFrame && mpFrameMap && mpFrameMap->find(pFrame) != mpFrameMap->end());
+}
+
+void SwAccessibleMap::A11yDispose( const SwFrame *pFrame,
+                                   const SdrObject *pObj,
+                                   vcl::Window* pWindow,
+                                   bool bRecursive,
+                                   bool bCanSkipInvisible )
+{
+    SwAccessibleChild aFrameOrObj( pFrame, pObj, pWindow );
+
+    // Indeed, the following assert checks the frame's accessible flag,
+    // because that's the one that is evaluated in the layout. The frame
+    // might not be accessible anyway. That's the case for cell frames that
+    // contain further cells.
+    OSL_ENSURE( !aFrameOrObj.GetSwFrame() || aFrameOrObj.GetSwFrame()->IsAccessibleFrame(),
+            "non accessible frame should be disposed" );
+
+    if (!(aFrameOrObj.IsAccessible(GetShell()->IsPreview())
+               // fdo#87199 dispose the darn thing if it ever was accessible
+            || Contains(pFrame)))
+        return;
+
+    ::rtl::Reference< SwAccessibleContext > xAccImpl;
+    ::rtl::Reference< SwAccessibleContext > xParentAccImpl;
+    ::rtl::Reference< ::accessibility::AccessibleShape > xShapeAccImpl;
+    // get accessible context for frame
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        // First of all look for an accessible context for a frame
+        if( aFrameOrObj.GetSwFrame() && mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+            if( aIter != mpFrameMap->end() )
+            {
+                uno::Reference < XAccessible > xAcc( (*aIter).second );
+                xAccImpl = static_cast< SwAccessibleContext *>( xAcc.get() );
+            }
+        }
+        if( !xAccImpl.is() && mpFrameMap )
+        {
+            // If there is none, look if the parent is accessible.
+            const SwFrame *pParent =
+                    SwAccessibleFrame::GetParent( aFrameOrObj,
+                                                  GetShell()->IsPreview());
+
+            if( pParent )
+            {
+                SwAccessibleContextMap_Impl::iterator aIter =
+                    mpFrameMap->find( pParent );
+                if( aIter != mpFrameMap->end() )
+                {
+                    uno::Reference < XAccessible > xAcc( (*aIter).second );
+                    xParentAccImpl =
+                        static_cast< SwAccessibleContext *>( xAcc.get() );
+                }
+            }
+        }
+        if( !xParentAccImpl.is() && !aFrameOrObj.GetSwFrame() && mpShapeMap )
+        {
+            SwAccessibleShapeMap_Impl::iterator aIter =
+                mpShapeMap->find( aFrameOrObj.GetDrawObject() );
+            if( aIter != mpShapeMap->end() )
+            {
+                uno::Reference < XAccessible > xAcc( (*aIter).second );
+                xShapeAccImpl =
+                    static_cast< ::accessibility::AccessibleShape *>( xAcc.get() );
+            }
+        }
+        if( pObj && GetShell()->ActionPend() &&
+            (xParentAccImpl.is() || xShapeAccImpl.is()) )
+        {
+            // Keep a reference to the XShape to avoid that it
+            // is deleted with a SwFrameFormat::SwClientNotify.
+            uno::Reference < drawing::XShape > xShape(
+                const_cast< SdrObject * >( pObj )->getUnoShape(),
+                uno::UNO_QUERY );
+            if( xShape.is() )
+            {
+                mvShapes.push_back( xShape );
+            }
+        }
+    }
+
+    // remove events stored for the frame
+    {
+        osl::MutexGuard aGuard( maEventMutex );
+        if( mpEvents )
+        {
+            SwAccessibleEventMap_Impl::iterator aIter =
+                mpEventMap->find( aFrameOrObj );
+            if( aIter != mpEventMap->end() )
+            {
+                SwAccessibleEvent_Impl aEvent(
+                        SwAccessibleEvent_Impl::DISPOSE, aFrameOrObj );
+                AppendEvent( aEvent );
+            }
+        }
+    }
+
+    // If the frame is accessible and there is a context for it, dispose
+    // the frame. If the frame is no context for it but disposing should
+    // take place recursive, the frame's children have to be disposed
+    // anyway, so we have to create the context then.
+    if( xAccImpl.is() )
+    {
+        xAccImpl->Dispose( bRecursive );
+    }
+    else if( xParentAccImpl.is() )
+    {
+        // If the frame is a cell frame, the table must be notified.
+        // If we are in an action, a table model change event will
+        // be broadcasted at the end of the action to give the table
+        // a chance to generate a single table change event.
+
+        xParentAccImpl->DisposeChild( aFrameOrObj, bRecursive, bCanSkipInvisible );
+    }
+    else if( xShapeAccImpl.is() )
+    {
+        RemoveContext( aFrameOrObj.GetDrawObject() );
+        xShapeAccImpl->dispose();
+    }
+
+    if( mpPreview && pFrame && pFrame->IsPageFrame() )
+        mpPreview->DisposePage( static_cast< const SwPageFrame *>( pFrame ) );
+}
+
+void SwAccessibleMap::InvalidatePosOrSize( const SwFrame *pFrame,
+                                           const SdrObject *pObj,
+                                           vcl::Window* pWindow,
+                                           const SwRect& rOldBox )
+{
+    SwAccessibleChild aFrameOrObj( pFrame, pObj, pWindow );
+    if( !aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+        return;
+
+    ::rtl::Reference< SwAccessibleContext > xAccImpl;
+    ::rtl::Reference< SwAccessibleContext > xParentAccImpl;
+    const SwFrame *pParent =nullptr;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( mpFrameMap )
+        {
+            if( aFrameOrObj.GetSwFrame() )
+            {
+                SwAccessibleContextMap_Impl::iterator aIter =
+                    mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+                if( aIter != mpFrameMap->end() )
+                {
+                    // If there is an accessible object already it is
+                    // notified directly.
+                    uno::Reference < XAccessible > xAcc( (*aIter).second );
+                    xAccImpl =
+                        static_cast< SwAccessibleContext *>( xAcc.get() );
+                }
+            }
+            if( !xAccImpl.is() )
+            {
+                // Otherwise we look if the parent is accessible.
+                // If not, there is nothing to do.
+                pParent =
+                    SwAccessibleFrame::GetParent( aFrameOrObj,
+                                                  GetShell()->IsPreview());
+
+                if( pParent )
+                {
+                    SwAccessibleContextMap_Impl::iterator aIter =
+                        mpFrameMap->find( pParent );
+                    if( aIter != mpFrameMap->end() )
+                    {
+                        uno::Reference < XAccessible > xAcc( (*aIter).second );
+                        xParentAccImpl =
+                            static_cast< SwAccessibleContext *>( xAcc.get() );
+                    }
+                }
+            }
+        }
+    }
+
+    if( xAccImpl.is() )
+    {
+        if( GetShell()->ActionPend() )
+        {
+            SwAccessibleEvent_Impl aEvent(
+                SwAccessibleEvent_Impl::POS_CHANGED, xAccImpl.get(),
+                aFrameOrObj, rOldBox );
+            AppendEvent( aEvent );
+        }
+        else
+        {
+            FireEvents();
+            if (xAccImpl->GetFrame()) // not if disposed by FireEvents()
+            {
+                xAccImpl->InvalidatePosOrSize(rOldBox);
+            }
+        }
+    }
+    else if( xParentAccImpl.is() )
+    {
+        if( GetShell()->ActionPend() )
+        {
+            assert(pParent);
+            // tdf#99722 faster not to buffer events that won't be sent
+            if (!SwAccessibleChild(pParent).IsVisibleChildrenOnly()
+                || xParentAccImpl->IsShowing(rOldBox)
+                || xParentAccImpl->IsShowing(*this, aFrameOrObj))
+            {
+                SwAccessibleEvent_Impl aEvent(
+                    SwAccessibleEvent_Impl::CHILD_POS_CHANGED,
+                    xParentAccImpl.get(), aFrameOrObj, rOldBox );
+                AppendEvent( aEvent );
+            }
+        }
+        else
+        {
+            FireEvents();
+            xParentAccImpl->InvalidateChildPosOrSize( aFrameOrObj,
+                                                      rOldBox );
+        }
+    }
+    else if(pParent)
+    {
+/*
+For child graphic and its parent paragraph,if split 2 graphic to 2 paragraph,
+will delete one graphic swfrm and new create 1 graphic swfrm ,
+then the new paragraph and the new graphic SwFrame will add .
+but when add graphic SwFrame ,the accessible of the new Paragraph is not created yet.
+so the new graphic accessible 'parent is NULL,
+so run here: save the parent's SwFrame not the accessible object parent,
+*/
+        bool bIsValidFrame = false;
+        bool bIsTextParent = false;
+        if (aFrameOrObj.GetSwFrame())
+        {
+            if (SwFrameType::Fly == pFrame->GetType())
+            {
+                bIsValidFrame =true;
+            }
+        }
+        else if(pObj)
+        {
+            if (SwFrameType::Txt == pParent->GetType())
+            {
+                bIsTextParent =true;
+            }
+        }
+        if( bIsValidFrame || bIsTextParent )
+        {
+            if( GetShell()->ActionPend() )
+            {
+                SwAccessibleEvent_Impl aEvent(
+                    SwAccessibleEvent_Impl::CHILD_POS_CHANGED,
+                    pParent, aFrameOrObj, rOldBox );
+                AppendEvent( aEvent );
+            }
+            else
+            {
+                OSL_ENSURE(false,"");
+            }
+        }
+    }
+}
+
+void SwAccessibleMap::InvalidateContent( const SwFrame *pFrame )
+{
+    SwAccessibleChild aFrameOrObj( pFrame );
+    if( !aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+        return;
+
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+        }
+    }
+
+    if( !xAcc.is() )
+        return;
+
+    SwAccessibleContext *pAccImpl =
+        static_cast< SwAccessibleContext *>( xAcc.get() );
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent(
+            SwAccessibleEvent_Impl::INVALID_CONTENT, pAccImpl,
+            aFrameOrObj );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        pAccImpl->InvalidateContent();
+    }
+}
+
+void SwAccessibleMap::InvalidateAttr( const SwTextFrame& rTextFrame )
+{
+    SwAccessibleChild aFrameOrObj( &rTextFrame );
+    if( !aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+        return;
+
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+        }
+    }
+
+    if( !xAcc.is() )
+        return;
+
+    SwAccessibleContext *pAccImpl =
+        static_cast< SwAccessibleContext *>( xAcc.get() );
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent( SwAccessibleEvent_Impl::INVALID_ATTR,
+                                       pAccImpl, aFrameOrObj );
+        aEvent.SetStates( AccessibleStates::TEXT_ATTRIBUTE_CHANGED );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        pAccImpl->InvalidateAttr();
+    }
+}
+
+void SwAccessibleMap::InvalidateCursorPosition( const SwFrame *pFrame )
+{
+    SwAccessibleChild aFrameOrObj( pFrame );
+    bool bShapeSelected = false;
+    const SwViewShell *pVSh = GetShell();
+    if( auto pCSh = dynamic_cast<const SwCursorShell*>(pVSh) )
+    {
+        if( pCSh->IsTableMode() )
+        {
+            while( aFrameOrObj.GetSwFrame() && !aFrameOrObj.GetSwFrame()->IsCellFrame() )
+                aFrameOrObj = aFrameOrObj.GetSwFrame()->GetUpper();
+        }
+        else if( auto pFESh = dynamic_cast<const SwFEShell*>(pVSh) )
+        {
+            const SwFrame *pFlyFrame = pFESh->GetSelectedFlyFrame();
+            if( pFlyFrame )
+            {
+                OSL_ENSURE( !pFrame || pFrame->FindFlyFrame() == pFlyFrame,
+                        "cursor is not contained in fly frame" );
+                aFrameOrObj = pFlyFrame;
+            }
+            else if( pFESh->IsObjSelected() > 0 )
+            {
+                bShapeSelected = true;
+                aFrameOrObj = static_cast<const SwFrame *>( nullptr );
+            }
+        }
+    }
+
+    OSL_ENSURE( bShapeSelected || aFrameOrObj.IsAccessible(GetShell()->IsPreview()),
+            "frame is not accessible" );
+
+    uno::Reference < XAccessible > xOldAcc;
+    uno::Reference < XAccessible > xAcc;
+    bool bOldShapeSelected = false;
+
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        xOldAcc = mxCursorContext;
+        mxCursorContext = xAcc; // clear reference
+
+        bOldShapeSelected = mbShapeSelected;
+        mbShapeSelected = bShapeSelected;
+
+        if( aFrameOrObj.GetSwFrame() && mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+            else
+            {
+                SwRect rcEmpty;
+                const SwTabFrame* pTabFrame = aFrameOrObj.GetSwFrame()->FindTabFrame();
+                if (pTabFrame)
+                {
+                    InvalidatePosOrSize(pTabFrame, nullptr, nullptr, rcEmpty);
+                }
+                else
+                {
+                    InvalidatePosOrSize(aFrameOrObj.GetSwFrame(), nullptr, nullptr, rcEmpty);
+                }
+
+                aIter = mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+                if( aIter != mpFrameMap->end() )
+                {
+                    xAcc = (*aIter).second;
+                }
+            }
+
+            // For cells, some extra thoughts are necessary,
+            // because invalidating the cursor for one cell
+            // invalidates the cursor for all cells of the same
+            // table. For this reason, we don't want to
+            // invalidate the cursor for the old cursor object
+            // and the new one if they are within the same table,
+            // because this would result in doing the work twice.
+            // Moreover, we have to make sure to invalidate the
+            // cursor even if the current cell has no accessible object.
+            // If the old cursor objects exists and is in the same
+            // table, it's the best choice, because using it avoids
+            // an unnecessary cursor invalidation cycle when creating
+            // a new object for the current cell.
+            if( aFrameOrObj.GetSwFrame()->IsCellFrame() )
+            {
+                if( xOldAcc.is() &&
+                    AreInSameTable( xOldAcc, aFrameOrObj.GetSwFrame() ) )
+                {
+                    if( xAcc.is() )
+                        xOldAcc = xAcc; // avoid extra invalidation
+                    else
+                        xAcc = xOldAcc; // make sure at least one
+                }
+                if( !xAcc.is() )
+                    xAcc = GetContext( aFrameOrObj.GetSwFrame() );
+            }
+        }
+        else if (bShapeSelected)
+        {
+            const SwFEShell *pFESh = static_cast< const SwFEShell * >( pVSh );
+            const SdrMarkList *pMarkList = pFESh->GetMarkList();
+            if (pMarkList != nullptr && pMarkList->GetMarkCount() == 1)
+            {
+                SdrObject *pObj = pMarkList->GetMark( 0 )->GetMarkedSdrObj();
+                ::rtl::Reference < ::accessibility::AccessibleShape > pAccShapeImpl = GetContextImpl(pObj,nullptr,false);
+                if (!pAccShapeImpl.is())
+                {
+                    while (pObj && pObj->getParentSdrObjectFromSdrObject())
+                    {
+                        pObj = pObj->getParentSdrObjectFromSdrObject();
+                    }
+                    if (pObj != nullptr)
+                    {
+                        const SwFrame *pParent = SwAccessibleFrame::GetParent( SwAccessibleChild(pObj), GetShell()->IsPreview() );
+                        if( pParent )
+                        {
+                            ::rtl::Reference< SwAccessibleContext > xParentAccImpl = GetContextImpl(pParent,false);
+                            if (!xParentAccImpl.is())
+                            {
+                                const SwTabFrame* pTabFrame = pParent->FindTabFrame();
+                                if (pTabFrame)
+                                {
+                                    //The Table should not add in acc.because the "pParent" is not add to acc .
+                                    uno::Reference< XAccessible>  xAccParentTab = GetContext(pTabFrame);//Should Create.
+
+                                    const SwFrame *pParentRoot = SwAccessibleFrame::GetParent( SwAccessibleChild(pTabFrame), GetShell()->IsPreview() );
+                                    if (pParentRoot)
+                                    {
+                                        ::rtl::Reference< SwAccessibleContext > xParentAccImplRoot = GetContextImpl(pParentRoot,false);
+                                        if(xParentAccImplRoot.is())
+                                        {
+                                            AccessibleEventObject aEvent;
+                                            aEvent.EventId = AccessibleEventId::CHILD;
+                                            aEvent.NewValue <<= xAccParentTab;
+                                            xParentAccImplRoot->FireAccessibleEvent( aEvent );
+                                        }
+                                    }
+
+                                    //Get "pParent" acc again.
+                                    xParentAccImpl = GetContextImpl(pParent,false);
+                                }
+                                else
+                                {
+                                    //directly create this acc para .
+                                    xParentAccImpl = GetContextImpl(pParent);//Should Create.
+
+                                    const SwFrame *pParentRoot = SwAccessibleFrame::GetParent( SwAccessibleChild(pParent), GetShell()->IsPreview() );
+
+                                    ::rtl::Reference< SwAccessibleContext > xParentAccImplRoot = GetContextImpl(pParentRoot,false);
+                                    if(xParentAccImplRoot.is())
+                                    {
+                                        AccessibleEventObject aEvent;
+                                        aEvent.EventId = AccessibleEventId::CHILD;
+                                        aEvent.NewValue <<= uno::Reference< XAccessible>(xParentAccImpl);
+                                        xParentAccImplRoot->FireAccessibleEvent( aEvent );
+                                    }
+                                }
+                            }
+                            if (xParentAccImpl.is())
+                            {
+                                uno::Reference< XAccessible>  xAccShape =
+                                    GetContext(pObj,xParentAccImpl.get());
+
+                                AccessibleEventObject aEvent;
+                                aEvent.EventId = AccessibleEventId::CHILD;
+                                aEvent.NewValue <<= xAccShape;
+                                xParentAccImpl->FireAccessibleEvent( aEvent );
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    m_setParaAdd.clear();
+    m_setParaRemove.clear();
+    if( xOldAcc.is() && xOldAcc != xAcc )
+        InvalidateCursorPosition( xOldAcc );
+    if( bOldShapeSelected || bShapeSelected )
+        InvalidateShapeSelection();
+    if( xAcc.is() )
+        InvalidateCursorPosition( xAcc );
+
+    InvalidateShapeInParaSelection();
+
+    for (SwAccessibleParagraph* pAccPara : m_setParaRemove)
+    {
+        if(pAccPara && pAccPara->getSelectedAccessibleChildCount() == 0 && pAccPara->getSelectedText().getLength() == 0)
+        {
+            if(pAccPara->SetSelectedState(false))
+            {
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_REMOVE;
+                pAccPara->FireAccessibleEvent( aEvent );
+            }
+        }
+    }
+    for (SwAccessibleParagraph* pAccPara : m_setParaAdd)
+    {
+        if(pAccPara && pAccPara->SetSelectedState(true))
+        {
+            AccessibleEventObject aEvent;
+            aEvent.EventId = AccessibleEventId::SELECTION_CHANGED;
+            pAccPara->FireAccessibleEvent( aEvent );
+        }
+    }
+}
+
+void SwAccessibleMap::InvalidateFocus()
+{
+    if(GetShell()->IsPreview())
+    {
+        uno::Reference<XAccessible> xAcc = GetDocumentView_( true );
+        if (xAcc)
+        {
+            SwAccessiblePreview *pAccPreview = static_cast<SwAccessiblePreview *>(xAcc.get());
+            if (pAccPreview)
+            {
+                pAccPreview->InvalidateFocus();
+                return ;
+            }
+        }
+    }
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        xAcc = mxCursorContext;
+    }
+
+    if( xAcc.is() )
+    {
+        SwAccessibleContext *pAccImpl = static_cast< SwAccessibleContext *>( xAcc.get() );
+        pAccImpl->InvalidateFocus();
+    }
+    else
+    {
+        DoInvalidateShapeSelection(true);
+    }
+}
+
+void SwAccessibleMap::SetCursorContext(
+        const ::rtl::Reference < SwAccessibleContext >& rCursorContext )
+{
+    osl::MutexGuard aGuard( maMutex );
+    uno::Reference < XAccessible > xAcc( rCursorContext );
+    mxCursorContext = xAcc;
+}
+
+void SwAccessibleMap::InvalidateEditableStates( const SwFrame* _pFrame )
+{
+    // Start with the frame or the first upper that is accessible
+    SwAccessibleChild aFrameOrObj( _pFrame );
+    while( aFrameOrObj.GetSwFrame() &&
+            !aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+        aFrameOrObj = aFrameOrObj.GetSwFrame()->GetUpper();
+    if( !aFrameOrObj.GetSwFrame() )
+        aFrameOrObj = GetShell()->GetLayout();
+
+    uno::Reference< XAccessible > xAcc( GetContext( aFrameOrObj.GetSwFrame() ) );
+    SwAccessibleContext *pAccImpl = static_cast< SwAccessibleContext *>( xAcc.get() );
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent( SwAccessibleEvent_Impl::CARET_OR_STATES,
+                                       pAccImpl,
+                                       SwAccessibleChild(pAccImpl->GetFrame()),
+                                       AccessibleStates::EDITABLE );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        pAccImpl->InvalidateStates( AccessibleStates::EDITABLE );
+    }
+}
+
+void SwAccessibleMap::InvalidateRelationSet_( const SwFrame* pFrame,
+                                              bool bFrom )
+{
+    // first, see if this frame is accessible, and if so, get the respective
+    SwAccessibleChild aFrameOrObj( pFrame );
+    if( !aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+        return;
+
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                                    mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+            if( aIter != mpFrameMap->end() )
+            {
+                xAcc = (*aIter).second;
+            }
+        }
+    }
+
+    // deliver event directly, or queue event
+    if( !xAcc.is() )
+        return;
+
+    SwAccessibleContext *pAccImpl =
+                    static_cast< SwAccessibleContext *>( xAcc.get() );
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent( SwAccessibleEvent_Impl::CARET_OR_STATES,
+                                       pAccImpl, SwAccessibleChild(pFrame),
+                                       ( bFrom
+                                         ? AccessibleStates::RELATION_FROM
+                                         : AccessibleStates::RELATION_TO ) );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        pAccImpl->InvalidateRelation( bFrom
+                ? AccessibleEventId::CONTENT_FLOWS_FROM_RELATION_CHANGED
+                : AccessibleEventId::CONTENT_FLOWS_TO_RELATION_CHANGED );
+    }
+}
+
+void SwAccessibleMap::InvalidateRelationSet( const SwFrame* pMaster,
+                                             const SwFrame* pFollow )
+{
+    InvalidateRelationSet_( pMaster, false );
+    InvalidateRelationSet_( pFollow, true );
+}
+
+// invalidation of CONTENT_FLOW_FROM/_TO relation of a paragraph
+void SwAccessibleMap::InvalidateParaFlowRelation( const SwTextFrame& _rTextFrame,
+                                                  const bool _bFrom )
+{
+    InvalidateRelationSet_( &_rTextFrame, _bFrom );
+}
+
+// invalidation of text selection of a paragraph
+void SwAccessibleMap::InvalidateParaTextSelection( const SwTextFrame& _rTextFrame )
+{
+    // first, see if this frame is accessible, and if so, get the respective
+    SwAccessibleChild aFrameOrObj( &_rTextFrame );
+    if( !aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+        return;
+
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                                    mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+            if( aIter != mpFrameMap->end() )
+            {
+                xAcc = (*aIter).second;
+            }
+        }
+    }
+
+    // deliver event directly, or queue event
+    if( !xAcc.is() )
+        return;
+
+    SwAccessibleContext *pAccImpl =
+                    static_cast< SwAccessibleContext *>( xAcc.get() );
+    if( GetShell()->ActionPend() )
+    {
+        SwAccessibleEvent_Impl aEvent(
+            SwAccessibleEvent_Impl::CARET_OR_STATES,
+            pAccImpl,
+            SwAccessibleChild( &_rTextFrame ),
+            AccessibleStates::TEXT_SELECTION_CHANGED );
+        AppendEvent( aEvent );
+    }
+    else
+    {
+        FireEvents();
+        pAccImpl->InvalidateTextSelection();
+    }
+}
+
+sal_Int32 SwAccessibleMap::GetChildIndex( const SwFrame& rParentFrame,
+                                          vcl::Window& rChild ) const
+{
+    sal_Int32 nIndex( -1 );
+
+    SwAccessibleChild aFrameOrObj( &rParentFrame );
+    if( aFrameOrObj.IsAccessible( GetShell()->IsPreview() ) )
+    {
+        uno::Reference < XAccessible > xAcc;
+        {
+            osl::MutexGuard aGuard( maMutex );
+
+            if( mpFrameMap )
+            {
+                SwAccessibleContextMap_Impl::iterator aIter =
+                                        mpFrameMap->find( aFrameOrObj.GetSwFrame() );
+                if( aIter != mpFrameMap->end() )
+                {
+                    xAcc = (*aIter).second;
+                }
+            }
+        }
+
+        if( xAcc.is() )
+        {
+            SwAccessibleContext *pAccImpl =
+                            static_cast< SwAccessibleContext *>( xAcc.get() );
+
+            nIndex = pAccImpl->GetChildIndex( const_cast<SwAccessibleMap&>(*this),
+                                              SwAccessibleChild( &rChild ) );
+        }
+    }
+
+    return nIndex;
+}
+
+void SwAccessibleMap::UpdatePreview( const std::vector<std::unique_ptr<PreviewPage>>& _rPreviewPages,
+                                     const Fraction&  _rScale,
+                                     const SwPageFrame* _pSelectedPageFrame,
+                                     const Size&      _rPreviewWinSize )
+{
+    assert(GetShell()->IsPreview() && "no preview?");
+    assert(mpPreview != nullptr && "no preview data?");
+
+    mpPreview->Update( *this, _rPreviewPages, _rScale, _pSelectedPageFrame, _rPreviewWinSize );
+
+    // propagate change of VisArea through the document's
+    // accessibility tree; this will also send appropriate scroll
+    // events
+    SwAccessibleContext* pDoc =
+        GetContextImpl( GetShell()->GetLayout() ).get();
+    static_cast<SwAccessibleDocumentBase*>( pDoc )->SetVisArea();
+
+    uno::Reference < XAccessible > xOldAcc;
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        xOldAcc = mxCursorContext;
+
+        const SwPageFrame *pSelPage = mpPreview->GetSelPage();
+        if( pSelPage && mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter =
+                mpFrameMap->find( pSelPage );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+        }
+    }
+
+    if( xOldAcc.is() && xOldAcc != xAcc )
+        InvalidateCursorPosition( xOldAcc );
+    if( xAcc.is() )
+        InvalidateCursorPosition( xAcc );
+}
+
+void SwAccessibleMap::InvalidatePreviewSelection( sal_uInt16 nSelPage )
+{
+    assert(GetShell()->IsPreview());
+    assert(mpPreview != nullptr);
+
+    mpPreview->InvalidateSelection( GetShell()->GetLayout()->GetPageByPageNum( nSelPage ) );
+
+    uno::Reference < XAccessible > xOldAcc;
+    uno::Reference < XAccessible > xAcc;
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        xOldAcc = mxCursorContext;
+
+        const SwPageFrame *pSelPage = mpPreview->GetSelPage();
+        if( pSelPage && mpFrameMap )
+        {
+            SwAccessibleContextMap_Impl::iterator aIter = mpFrameMap->find( pSelPage );
+            if( aIter != mpFrameMap->end() )
+                xAcc = (*aIter).second;
+        }
+    }
+
+    if( xOldAcc.is() && xOldAcc != xAcc )
+        InvalidateCursorPosition( xOldAcc );
+    if( xAcc.is() )
+        InvalidateCursorPosition( xAcc );
+}
+
+bool SwAccessibleMap::IsPageSelected( const SwPageFrame *pPageFrame ) const
+{
+    return mpPreview && mpPreview->GetSelPage() == pPageFrame;
+}
+
+void SwAccessibleMap::FireEvents()
+{
+    {
+        osl::MutexGuard aGuard( maEventMutex );
+        if( mpEvents )
+        {
+            if (mpEvents->IsFiring())
+            {
+                return; // prevent recursive FireEvents()
+            }
+
+            mpEvents->SetFiring();
+            mpEvents->MoveMissingXAccToEnd();
+            for( auto const& aEvent : *mpEvents )
+                 FireEvent(aEvent);
+
+            mpEventMap.reset();
+            mpEvents.reset();
+        }
+    }
+    {
+        osl::MutexGuard aGuard( maMutex );
+        mvShapes.clear();
+    }
+
+}
+
+tools::Rectangle SwAccessibleMap::GetVisibleArea() const
+{
+    return o3tl::convert( GetVisArea().SVRect(), o3tl::Length::twip, o3tl::Length::mm100 );
+}
+
+// Convert a MM100 value relative to the document root into a pixel value
+// relative to the screen!
+Point SwAccessibleMap::LogicToPixel( const Point& rPoint ) const
+{
+    Point aPoint = o3tl::toTwips( rPoint, o3tl::Length::mm100 );
+    if (const vcl::Window* pWin = GetShell()->GetWin())
+    {
+        MapMode aMapMode;
+        GetMapMode( aPoint, aMapMode );
+        aPoint = pWin->LogicToPixel( aPoint, aMapMode );
+        aPoint = pWin->OutputToAbsoluteScreenPixel( aPoint );
+    }
+
+    return aPoint;
+}
+
+Size SwAccessibleMap::LogicToPixel( const Size& rSize ) const
+{
+    Size aSize( o3tl::toTwips( rSize, o3tl::Length::mm100 ) );
+    if (const OutputDevice* pWin = GetShell()->GetWin()->GetOutDev())
+    {
+        MapMode aMapMode;
+        GetMapMode( Point(0,0), aMapMode );
+        aSize = pWin->LogicToPixel( aSize, aMapMode );
+    }
+
+    return aSize;
+}
+
+bool SwAccessibleMap::ReplaceChild (
+        ::accessibility::AccessibleShape* pCurrentChild,
+        const uno::Reference< drawing::XShape >& _rxShape,
+        const tools::Long /*_nIndex*/,
+        const ::accessibility::AccessibleShapeTreeInfo& /*_rShapeTreeInfo*/
+    )
+{
+    const SdrObject *pObj = nullptr;
+    {
+        osl::MutexGuard aGuard( maMutex );
+        if( mpShapeMap )
+        {
+            SwAccessibleShapeMap_Impl::const_iterator aIter = mpShapeMap->cbegin();
+            SwAccessibleShapeMap_Impl::const_iterator aEndIter = mpShapeMap->cend();
+            while( aIter != aEndIter && !pObj )
+            {
+                uno::Reference < XAccessible > xAcc( (*aIter).second );
+                ::accessibility::AccessibleShape *pAccShape =
+                    static_cast < ::accessibility::AccessibleShape* >( xAcc.get() );
+                if( pAccShape == pCurrentChild )
+                {
+                    pObj = (*aIter).first;
+                }
+                ++aIter;
+            }
+        }
+    }
+    if( !pObj )
+        return false;
+
+    uno::Reference < drawing::XShape > xShape( _rxShape );  // keep reference to shape, because
+                                                            // we might be the only one that
+                                                            // holds it.
+    // Also get keep parent.
+    uno::Reference < XAccessible > xParent( pCurrentChild->getAccessibleParent() );
+    pCurrentChild = nullptr;  // will be released by dispose
+    A11yDispose( nullptr, pObj, nullptr );
+
+    {
+        osl::MutexGuard aGuard( maMutex );
+
+        if( !mpShapeMap )
+            mpShapeMap.reset(new SwAccessibleShapeMap_Impl( this ));
+
+        // create the new child
+        ::accessibility::ShapeTypeHandler& rShapeTypeHandler =
+                        ::accessibility::ShapeTypeHandler::Instance();
+        ::accessibility::AccessibleShapeInfo aShapeInfo(
+                                            xShape, xParent, this );
+        rtl::Reference< ::accessibility::AccessibleShape> pReplacement(
+            rShapeTypeHandler.CreateAccessibleObject (
+                aShapeInfo, mpShapeMap->GetInfo() ));
+
+        uno::Reference < XAccessible > xAcc( pReplacement );
+        if( xAcc.is() )
+        {
+            pReplacement->Init();
+
+            SwAccessibleShapeMap_Impl::iterator aIter = mpShapeMap->find( pObj );
+            if( aIter != mpShapeMap->end() )
+            {
+                (*aIter).second = xAcc;
+            }
+            else
+            {
+                mpShapeMap->emplace( pObj, xAcc );
+            }
+        }
+    }
+
+    SwRect aEmptyRect;
+    InvalidatePosOrSize( nullptr, pObj, nullptr, aEmptyRect );
+
+    return true;
+}
+
+//Get the accessible control shape from the model object, here model object is with XPropertySet type
+::accessibility::AccessibleControlShape * SwAccessibleMap::GetAccControlShapeFromModel(css::beans::XPropertySet* pSet)
+{
+    if( mpShapeMap )
+    {
+        SwAccessibleShapeMap_Impl::const_iterator aIter = mpShapeMap->cbegin();
+        SwAccessibleShapeMap_Impl::const_iterator aEndIter = mpShapeMap->cend();
+        while( aIter != aEndIter)
+        {
+            uno::Reference < XAccessible > xAcc( (*aIter).second );
+            ::accessibility::AccessibleShape *pAccShape =
+                static_cast < ::accessibility::AccessibleShape* >( xAcc.get() );
+            if(pAccShape && ::accessibility::ShapeTypeHandler::Instance().GetTypeId (pAccShape->GetXShape()) == ::accessibility::DRAWING_CONTROL)
+            {
+                ::accessibility::AccessibleControlShape *pCtlAccShape = static_cast < ::accessibility::AccessibleControlShape* >(pAccShape);
+                if (pCtlAccShape->GetControlModel() == pSet)
+                    return pCtlAccShape;
+            }
+            ++aIter;
+        }
+    }
+    return nullptr;
+}
+
+css::uno::Reference< XAccessible >
+    SwAccessibleMap::GetAccessibleCaption (const css::uno::Reference< css::drawing::XShape >&)
+{
+    return nullptr;
+}
+
+Point SwAccessibleMap::PixelToCore( const Point& rPoint ) const
+{
+    Point aPoint;
+    if (const OutputDevice* pWin = GetShell()->GetWin()->GetOutDev())
+    {
+        MapMode aMapMode;
+        GetMapMode( rPoint, aMapMode );
+        aPoint = pWin->PixelToLogic( rPoint, aMapMode );
+    }
+    return aPoint;
+}
+
+static tools::Long lcl_CorrectCoarseValue(tools::Long aCoarseValue, tools::Long aFineValue,
+                                          tools::Long aRefValue, bool bToLower)
+{
+    tools::Long aResult = aCoarseValue;
+
+    if (bToLower)
+    {
+        if (aFineValue < aRefValue)
+            aResult -= 1;
+    }
+    else
+    {
+        if (aFineValue > aRefValue)
+            aResult += 1;
+    }
+
+    return aResult;
+}
+
+static void lcl_CorrectRectangle(tools::Rectangle & rRect,
+                                        const tools::Rectangle & rSource,
+                                        const tools::Rectangle & rInGrid)
+{
+    rRect.SetLeft( lcl_CorrectCoarseValue(rRect.Left(), rSource.Left(),
+                                          rInGrid.Left(), false) );
+    rRect.SetTop( lcl_CorrectCoarseValue(rRect.Top(), rSource.Top(),
+                                         rInGrid.Top(), false) );
+    rRect.SetRight( lcl_CorrectCoarseValue(rRect.Right(), rSource.Right(),
+                                           rInGrid.Right(), true) );
+    rRect.SetBottom( lcl_CorrectCoarseValue(rRect.Bottom(), rSource.Bottom(),
+                                            rInGrid.Bottom(), true) );
+}
+
+tools::Rectangle SwAccessibleMap::CoreToPixel( const SwRect& rRect ) const
+{
+    tools::Rectangle aRect;
+    if (const OutputDevice* pWin = GetShell()->GetWin()->GetOutDev())
+    {
+        MapMode aMapMode;
+        GetMapMode( rRect.TopLeft(), aMapMode );
+        aRect = pWin->LogicToPixel( rRect.SVRect(), aMapMode );
+
+        tools::Rectangle aTmpRect = pWin->PixelToLogic( aRect, aMapMode );
+        lcl_CorrectRectangle(aRect, rRect.SVRect(), aTmpRect);
+    }
+
+    return aRect;
+}
+
+/** get mapping mode for LogicToPixel and PixelToLogic conversions
+
+    Method returns mapping mode of current output device and adjusts it,
+    if the shell is in page/print preview.
+    Necessary, because <PreviewAdjust(..)> changes mapping mode at current
+    output device for mapping logic document positions to page preview window
+    positions and vice versa and doesn't take care to recover its changes.
+*/
+void SwAccessibleMap::GetMapMode( const Point& _rPoint,
+                                  MapMode&     _orMapMode ) const
+{
+    MapMode aMapMode = GetShell()->GetWin()->GetMapMode();
+    if( GetShell()->IsPreview() )
+    {
+        assert(mpPreview != nullptr);
+        mpPreview->AdjustMapMode( aMapMode, _rPoint );
+    }
+    _orMapMode = aMapMode;
+}
+
+Size SwAccessibleMap::GetPreviewPageSize(sal_uInt16 const nPreviewPageNum) const
+{
+    assert(mpVSh->IsPreview());
+    assert(mpPreview != nullptr);
+    return mpVSh->PagePreviewLayout()->GetPreviewPageSizeByPageNum(nPreviewPageNum);
+}
+
+/** method to build up a new data structure of the accessible paragraphs,
+    which have a selection
+    Important note: method has to be used inside a mutual exclusive section
+*/
+std::unique_ptr<SwAccessibleSelectedParas_Impl> SwAccessibleMap::BuildSelectedParas()
+{
+    // no accessible contexts, no selection
+    if ( !mpFrameMap )
+    {
+        return nullptr;
+    }
+
+    // get cursor as an instance of its base class <SwPaM>
+    SwPaM* pCursor( nullptr );
+    {
+        SwCursorShell* pCursorShell = dynamic_cast<SwCursorShell*>(GetShell());
+        if ( pCursorShell )
+        {
+            SwFEShell* pFEShell = dynamic_cast<SwFEShell*>(pCursorShell);
+            if ( !pFEShell ||
+                 ( !pFEShell->IsFrameSelected() &&
+                   pFEShell->IsObjSelected() == 0 ) )
+            {
+                // get cursor without updating an existing table cursor.
+                pCursor = pCursorShell->GetCursor( false );
+            }
+        }
+    }
+    // no cursor, no selection
+    if ( !pCursor )
+    {
+        return nullptr;
+    }
+
+    std::unique_ptr<SwAccessibleSelectedParas_Impl> pRetSelectedParas;
+
+    // loop on all cursors
+    SwPaM* pRingStart = pCursor;
+    do {
+
+        // for a selection the cursor has to have a mark.
+        // for safety reasons assure that point and mark are in text nodes
+        if ( pCursor->HasMark() &&
+             pCursor->GetPoint()->nNode.GetNode().IsTextNode() &&
+             pCursor->GetMark()->nNode.GetNode().IsTextNode() )
+        {
+            SwPosition* pStartPos = pCursor->Start();
+            SwPosition* pEndPos = pCursor->End();
+            // loop on all text nodes inside the selection
+            SwNodeIndex aIdx( pStartPos->nNode );
+            for ( ; aIdx.GetIndex() <= pEndPos->nNode.GetIndex(); ++aIdx )
+            {
+                SwTextNode* pTextNode( aIdx.GetNode().GetTextNode() );
+                if ( pTextNode )
+                {
+                    // loop on all text frames registered at the text node.
+                    SwIterator<SwTextFrame, SwTextNode, sw::IteratorMode::UnwrapMulti> aIter(*pTextNode);
+                    for( SwTextFrame* pTextFrame = aIter.First(); pTextFrame; pTextFrame = aIter.Next() )
+                    {
+                            uno::WeakReference < XAccessible > xWeakAcc;
+                            SwAccessibleContextMap_Impl::iterator aMapIter =
+                                                    mpFrameMap->find( pTextFrame );
+                            if( aMapIter != mpFrameMap->end() )
+                            {
+                                xWeakAcc = (*aMapIter).second;
+                                SwAccessibleParaSelection aDataEntry(
+                                    sw::FrameContainsNode(*pTextFrame, pStartPos->nNode.GetIndex())
+                                        ? pTextFrame->MapModelToViewPos(*pStartPos)
+                                        : TextFrameIndex(0),
+
+                                    sw::FrameContainsNode(*pTextFrame, pEndPos->nNode.GetIndex())
+                                        ? pTextFrame->MapModelToViewPos(*pEndPos)
+                                        : TextFrameIndex(COMPLETE_STRING));
+                                if ( !pRetSelectedParas )
+                                {
+                                    pRetSelectedParas.reset(
+                                            new SwAccessibleSelectedParas_Impl);
+                                }
+                                // sw_redlinehide: should be idempotent for multiple nodes in a merged para
+                                pRetSelectedParas->emplace( xWeakAcc, aDataEntry );
+                            }
+                    }
+                }
+            }
+        }
+
+        // prepare next turn: get next cursor in ring
+        pCursor = pCursor->GetNext();
+    } while ( pCursor != pRingStart );
+
+    return pRetSelectedParas;
+}
+
+void SwAccessibleMap::InvalidateTextSelectionOfAllParas()
+{
+    osl::MutexGuard aGuard( maMutex );
+
+    // keep previously known selected paragraphs
+    std::unique_ptr<SwAccessibleSelectedParas_Impl> pPrevSelectedParas( std::move(mpSelectedParas) );
+
+    // determine currently selected paragraphs
+    mpSelectedParas = BuildSelectedParas();
+
+    // compare currently selected paragraphs with the previously selected
+    // paragraphs and submit corresponding TEXT_SELECTION_CHANGED events.
+    // first, search for new and changed selections.
+    // on the run remove selections from previously known ones, if they are
+    // also in the current ones.
+    if ( mpSelectedParas )
+    {
+        SwAccessibleSelectedParas_Impl::iterator aIter = mpSelectedParas->begin();
+        for ( ; aIter != mpSelectedParas->end(); ++aIter )
+        {
+            bool bSubmitEvent( false );
+            if ( !pPrevSelectedParas )
+            {
+                // new selection
+                bSubmitEvent = true;
+            }
+            else
+            {
+                SwAccessibleSelectedParas_Impl::iterator aPrevSelected =
+                                        pPrevSelectedParas->find( (*aIter).first );
+                if ( aPrevSelected != pPrevSelectedParas->end() )
+                {
+                    // check, if selection has changed
+                    if ( (*aIter).second.nStartOfSelection !=
+                                    (*aPrevSelected).second.nStartOfSelection ||
+                         (*aIter).second.nEndOfSelection !=
+                                    (*aPrevSelected).second.nEndOfSelection )
+                    {
+                        // changed selection
+                        bSubmitEvent = true;
+                    }
+                    pPrevSelectedParas->erase( aPrevSelected );
+                }
+                else
+                {
+                    // new selection
+                    bSubmitEvent = true;
+                }
+            }
+
+            if ( bSubmitEvent )
+            {
+                uno::Reference < XAccessible > xAcc( (*aIter).first );
+                if ( xAcc.is() )
+                {
+                    ::rtl::Reference < SwAccessibleContext > xAccImpl(
+                                static_cast<SwAccessibleContext*>( xAcc.get() ) );
+                    if ( xAccImpl.is() && xAccImpl->GetFrame() )
+                    {
+                        const SwTextFrame* pTextFrame = xAccImpl->GetFrame()->DynCastTextFrame();
+                        OSL_ENSURE( pTextFrame,
+                                "<SwAccessibleMap::_SubmitTextSelectionChangedEvents()> - unexpected type of frame" );
+                        if ( pTextFrame )
+                        {
+                            InvalidateParaTextSelection( *pTextFrame );
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // second, handle previous selections - after the first step the data
+    // structure of the previously known only contains the 'old' selections
+    if ( !pPrevSelectedParas )
+        return;
+
+    SwAccessibleSelectedParas_Impl::iterator aIter = pPrevSelectedParas->begin();
+    for ( ; aIter != pPrevSelectedParas->end(); ++aIter )
+    {
+        uno::Reference < XAccessible > xAcc( (*aIter).first );
+        if ( xAcc.is() )
+        {
+            ::rtl::Reference < SwAccessibleContext > xAccImpl(
+                        static_cast<SwAccessibleContext*>( xAcc.get() ) );
+            if ( xAccImpl.is() && xAccImpl->GetFrame() )
+            {
+                const SwTextFrame* pTextFrame = xAccImpl->GetFrame()->DynCastTextFrame();
+                OSL_ENSURE( pTextFrame,
+                        "<SwAccessibleMap::_SubmitTextSelectionChangedEvents()> - unexpected type of frame" );
+                if ( pTextFrame )
+                {
+                    InvalidateParaTextSelection( *pTextFrame );
+                }
+            }
+        }
+    }
+}
+
+const SwRect& SwAccessibleMap::GetVisArea() const
+{
+    assert(!GetShell()->IsPreview() || (mpPreview != nullptr));
+
+    return GetShell()->IsPreview()
+           ? mpPreview->GetVisArea()
+           : GetShell()->VisArea();
+}
+
+bool SwAccessibleMap::IsDocumentSelAll()
+{
+    return GetShell()->GetDoc()->IsPrepareSelAll();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accnotextframe.cxx b/sw/source/core/access/accnotextframe.cxx
new file mode 100644
index 000000000..0f1454602
--- /dev/null
+++ b/sw/source/core/access/accnotextframe.cxx
@@ -0,0 +1,315 @@
+/* -*- 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 <vcl/svapp.hxx>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <cppuhelper/typeprovider.hxx>
+#include <frmfmt.hxx>
+#include <ndnotxt.hxx>
+#include <flyfrm.hxx>
+#include <notxtfrm.hxx>
+#include <hints.hxx>
+#include "accnotextframe.hxx"
+#include <fmturl.hxx>
+#include "accnotexthyperlink.hxx"
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <com/sun/star/accessibility/XAccessibleRelationSet.hpp>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using utl::AccessibleRelationSetHelper;
+
+const SwNoTextNode *SwAccessibleNoTextFrame::GetNoTextNode() const
+{
+    const SwNoTextNode *pNd  = nullptr;
+    const SwFlyFrame *pFlyFrame = static_cast< const SwFlyFrame *>( GetFrame() );
+    if( pFlyFrame->Lower() && pFlyFrame->Lower()->IsNoTextFrame() )
+    {
+        const SwNoTextFrame *pContentFrame =
+            static_cast<const SwNoTextFrame *>(pFlyFrame->Lower());
+        const SwContentNode* pSwContentNode = pContentFrame->GetNode();
+        if(pSwContentNode != nullptr)
+        {
+            pNd = pSwContentNode->GetNoTextNode();
+        }
+    }
+
+    return pNd;
+}
+
+SwAccessibleNoTextFrame::SwAccessibleNoTextFrame(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        sal_Int16 nInitRole,
+        const SwFlyFrame* pFlyFrame  ) :
+    SwAccessibleFrameBase( pInitMap, nInitRole, pFlyFrame )
+{
+    const SwNoTextNode* pNd = GetNoTextNode();
+    // #i73249#
+    // consider new attributes Title and Description
+    if( pNd )
+    {
+        StartListening(const_cast<SwNoTextNode*>(pNd)->GetNotifier());
+        msTitle = pNd->GetTitle();
+
+        msDesc = pNd->GetDescription();
+        if ( msDesc.isEmpty() &&
+             msTitle != GetName() )
+        {
+            msDesc = msTitle;
+        }
+    }
+}
+
+SwAccessibleNoTextFrame::~SwAccessibleNoTextFrame()
+{
+}
+
+void SwAccessibleNoTextFrame::Notify(const SfxHint& rHint)
+{
+    if(rHint.GetId() == SfxHintId::Dying)
+        EndListeningAll();
+    else if (rHint.GetId() == SfxHintId::SwLegacyModify)
+    {
+        auto pLegacyModifyHint = static_cast<const sw::LegacyModifyHint*>(&rHint);
+        const sal_uInt16 nWhich = pLegacyModifyHint->GetWhich();
+        if (nWhich != RES_TITLE_CHANGED && nWhich != RES_DESCRIPTION_CHANGED)
+            return;
+        const SwNoTextNode* pNd = GetNoTextNode();
+        switch(nWhich)
+        {
+            // #i73249#
+            case RES_TITLE_CHANGED:
+            {
+                OUString sOldTitle, sNewTitle;
+                const SwStringMsgPoolItem* pOldItem = dynamic_cast<const SwStringMsgPoolItem*>(pLegacyModifyHint->m_pOld);
+                if(pOldItem)
+                    sOldTitle = pOldItem->GetString();
+                const SwStringMsgPoolItem* pNewItem = dynamic_cast<const SwStringMsgPoolItem*>(pLegacyModifyHint->m_pNew);
+                if(pNewItem)
+                    sNewTitle = pNewItem->GetString();
+                if(sOldTitle == sNewTitle)
+                    break;
+                msTitle = sNewTitle;
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::NAME_CHANGED;
+                aEvent.OldValue <<= sOldTitle;
+                aEvent.NewValue <<= msTitle;
+                FireAccessibleEvent(aEvent);
+
+                if(!pNd->GetDescription().isEmpty())
+                    break;
+                [[fallthrough]];
+            }
+            case RES_DESCRIPTION_CHANGED:
+            {
+                if(pNd && GetFrame())
+                {
+                    const OUString sOldDesc(msDesc);
+
+                    const OUString& rDesc = pNd->GetDescription();
+                    msDesc = rDesc;
+                    if(msDesc.isEmpty() && msTitle != GetName())
+                        msDesc = msTitle;
+
+                    if(msDesc != sOldDesc)
+                    {
+                        AccessibleEventObject aEvent;
+                        aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED;
+                        aEvent.OldValue <<= sOldDesc;
+                        aEvent.NewValue <<= msDesc;
+                        FireAccessibleEvent(aEvent);
+                    }
+                }
+            }
+        }
+    }
+}
+
+void SwAccessibleNoTextFrame::Dispose(bool bRecursive, bool bCanSkipInvisible)
+{
+    SolarMutexGuard aGuard;
+    EndListeningAll();
+    SwAccessibleFrameBase::Dispose(bRecursive, bCanSkipInvisible);
+}
+
+// #i73249#
+OUString SAL_CALL SwAccessibleNoTextFrame::getAccessibleName()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if ( !msTitle.isEmpty() )
+    {
+        return msTitle;
+    }
+
+    return SwAccessibleFrameBase::getAccessibleName();
+}
+
+OUString SAL_CALL SwAccessibleNoTextFrame::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return msDesc;
+}
+
+// XInterface
+
+uno::Any SAL_CALL SwAccessibleNoTextFrame::queryInterface( const uno::Type& aType )
+{
+    if( aType ==
+        ::cppu::UnoType<XAccessibleImage>::get() )
+    {
+        uno::Reference<XAccessibleImage> xImage = this;
+        return uno::Any(xImage);
+    }
+    else if ( aType == cppu::UnoType<XAccessibleHypertext>::get())
+    {
+        uno::Reference<XAccessibleHypertext> aAccHypertext = this;
+        return uno::Any( aAccHypertext );
+    }
+    else
+        return SwAccessibleContext::queryInterface( aType );
+}
+
+// XTypeProvider
+
+uno::Sequence< uno::Type > SAL_CALL SwAccessibleNoTextFrame::getTypes()
+{
+    return cppu::OTypeCollection(
+        ::cppu::UnoType<XAccessibleImage>::get(),
+        SwAccessibleFrameBase::getTypes() ).getTypes();
+}
+
+/// XAccessibleImage
+/** implementation of the XAccessibleImage methods is a no-brainer, as
+    all relevant information is already accessible through other
+    methods. So we just delegate to those. */
+
+OUString SAL_CALL SwAccessibleNoTextFrame::getAccessibleImageDescription()
+{
+    return getAccessibleDescription();
+}
+
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getAccessibleImageHeight(  )
+{
+    return getSize().Height;
+}
+
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getAccessibleImageWidth(  )
+{
+    return getSize().Width;
+}
+
+// XAccessibleText
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getCaretPosition(  ){return 0;}
+sal_Bool SAL_CALL SwAccessibleNoTextFrame::setCaretPosition( sal_Int32 ){return false;}
+sal_Unicode SAL_CALL SwAccessibleNoTextFrame::getCharacter( sal_Int32 ){return 0;}
+css::uno::Sequence< css::beans::PropertyValue > SAL_CALL SwAccessibleNoTextFrame::getCharacterAttributes( sal_Int32 , const css::uno::Sequence< OUString >& )
+{
+    return uno::Sequence<beans::PropertyValue>();
+}
+css::awt::Rectangle SAL_CALL SwAccessibleNoTextFrame::getCharacterBounds( sal_Int32 )
+{
+    return css::awt::Rectangle(0, 0, 0, 0 );
+}
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getCharacterCount(  ){return 0;}
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getIndexAtPoint( const css::awt::Point& ){return 0;}
+OUString SAL_CALL SwAccessibleNoTextFrame::getSelectedText(  ){return OUString();}
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getSelectionStart(  ){return 0;}
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getSelectionEnd(  ){return 0;}
+sal_Bool SAL_CALL SwAccessibleNoTextFrame::setSelection( sal_Int32 , sal_Int32 ){return true;}
+OUString SAL_CALL SwAccessibleNoTextFrame::getText(  ){return OUString();}
+OUString SAL_CALL SwAccessibleNoTextFrame::getTextRange( sal_Int32 , sal_Int32 ){return OUString();}
+css::accessibility::TextSegment SAL_CALL SwAccessibleNoTextFrame::getTextAtIndex( sal_Int32 , sal_Int16 )
+{
+    css::accessibility::TextSegment aResult;
+    return aResult;
+}
+css::accessibility::TextSegment SAL_CALL SwAccessibleNoTextFrame::getTextBeforeIndex( sal_Int32, sal_Int16 )
+{
+    css::accessibility::TextSegment aResult;
+    return aResult;
+}
+css::accessibility::TextSegment SAL_CALL SwAccessibleNoTextFrame::getTextBehindIndex( sal_Int32 , sal_Int16 )
+{
+    css::accessibility::TextSegment aResult;
+    return aResult;
+}
+
+sal_Bool SAL_CALL SwAccessibleNoTextFrame::copyText( sal_Int32, sal_Int32 ){return true;}
+sal_Bool SAL_CALL SwAccessibleNoTextFrame::scrollSubstringTo( sal_Int32, sal_Int32, AccessibleScrollType ){return false;}
+
+//  XAccessibleHyperText
+
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getHyperLinkCount()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nCount = 0;
+    SwFormatURL aURL( static_cast<const SwLayoutFrame*>(GetFrame())->GetFormat()->GetURL() );
+
+    if(aURL.GetMap() || !aURL.GetURL().isEmpty())
+        nCount = 1;
+
+    return nCount;
+}
+
+uno::Reference< XAccessibleHyperlink > SAL_CALL
+    SwAccessibleNoTextFrame::getHyperLink( sal_Int32 nLinkIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    SwFormatURL aURL( static_cast<const SwLayoutFrame*>(GetFrame())->GetFormat()->GetURL() );
+
+    if( nLinkIndex > 0 )
+        throw lang::IndexOutOfBoundsException();
+
+    if( aURL.GetMap() || !aURL.GetURL().isEmpty() )
+    {
+        if ( !m_xHyperlink.is() )
+        {
+            m_xHyperlink = new SwAccessibleNoTextHyperlink( this, GetFrame() );
+        }
+
+        return m_xHyperlink;
+    }
+
+    return nullptr;
+}
+
+sal_Int32 SAL_CALL SwAccessibleNoTextFrame::getHyperLinkIndex( sal_Int32 )
+{
+    return 0;
+}
+
+uno::Reference<XAccessibleRelationSet> SAL_CALL SwAccessibleNoTextFrame::getAccessibleRelationSet( )
+{
+    return new AccessibleRelationSetHelper();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accnotextframe.hxx b/sw/source/core/access/accnotextframe.hxx
new file mode 100644
index 000000000..13680ffa5
--- /dev/null
+++ b/sw/source/core/access/accnotextframe.hxx
@@ -0,0 +1,125 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCNOTEXTFRAME_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCNOTEXTFRAME_HXX
+
+#include "accframebase.hxx"
+#include <com/sun/star/accessibility/AccessibleScrollType.hpp>
+#include <com/sun/star/accessibility/XAccessibleImage.hpp>
+#include <com/sun/star/accessibility/XAccessibleHypertext.hpp>
+
+class SwFlyFrame;
+class SwNoTextNode;
+
+class SwAccessibleNoTextFrame : public  SwAccessibleFrameBase,
+                                public css::accessibility::XAccessibleImage,
+                                public css::accessibility::XAccessibleHypertext//Added by yangzhh for HyperLink
+{
+    friend class SwAccessibleNoTextHyperlink;
+    css::uno::Reference< css::accessibility::XAccessibleHyperlink > m_xHyperlink;
+    OUString msTitle;
+    OUString msDesc;
+
+protected:
+    virtual ~SwAccessibleNoTextFrame() override;
+
+    const SwNoTextNode *GetNoTextNode() const;
+
+    virtual void Notify(const SfxHint&) override;
+
+public:
+    SwAccessibleNoTextFrame( std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                             sal_Int16 nInitRole,
+                             const SwFlyFrame *pFlyFrame );
+
+    // XAccessibleContext
+
+    // #i73249# - Return the object's current name.
+    virtual OUString SAL_CALL
+        getAccessibleName() override;
+
+    /// Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    // XInterface methods need to be implemented to disambiguate
+    // between those inherited through SwAccessibleContext and
+    // XAccessibleImage.
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        const css::uno::Type& aType ) override;
+
+    virtual void SAL_CALL acquire(  ) noexcept override
+        { SwAccessibleContext::acquire(); };
+
+    virtual void SAL_CALL release(  ) noexcept override
+        { SwAccessibleContext::release(); };
+
+    // XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+
+    // XAccessibleImage
+    virtual OUString SAL_CALL
+        getAccessibleImageDescription(  ) override;
+
+    virtual sal_Int32 SAL_CALL
+        getAccessibleImageHeight(  ) override;
+
+    virtual sal_Int32 SAL_CALL
+        getAccessibleImageWidth(  ) override;
+
+    // The object is not visible any longer and should be destroyed
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true) override;
+
+    virtual sal_Int32 SAL_CALL getCaretPosition(  ) override;
+    virtual sal_Bool SAL_CALL setCaretPosition( sal_Int32 nIndex ) override;
+    virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) override;//Shen Zhen Jie changed sal_Unicode to sal_uInt32
+    virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& aRequestedAttributes ) override;
+    virtual css::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) override;
+    virtual sal_Int32 SAL_CALL getCharacterCount(  ) override;
+    virtual sal_Int32 SAL_CALL getIndexAtPoint( const css::awt::Point& aPoint ) override;
+    virtual OUString SAL_CALL getSelectedText(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectionStart(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectionEnd(  ) override;
+    virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual OUString SAL_CALL getText(  ) override;
+    virtual OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual sal_Bool SAL_CALL scrollSubstringTo( sal_Int32 nStartIndex, sal_Int32 nEndIndex, css::accessibility::AccessibleScrollType aScrollType) override;
+
+    // XAccessibleHypertext
+    virtual sal_Int32 SAL_CALL getHyperLinkCount() override;
+    virtual css::uno::Reference< css::accessibility::XAccessibleHyperlink >
+    SAL_CALL getHyperLink( sal_Int32 nLinkIndex ) override;
+    virtual sal_Int32 SAL_CALL getHyperLinkIndex( sal_Int32 nCharIndex ) override;
+
+    SwAccessibleMap *GetAccessibleMap(){ return GetMap();}
+
+public:
+    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet> SAL_CALL
+        getAccessibleRelationSet() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accnotexthyperlink.cxx b/sw/source/core/access/accnotexthyperlink.cxx
new file mode 100644
index 000000000..36ded7390
--- /dev/null
+++ b/sw/source/core/access/accnotexthyperlink.cxx
@@ -0,0 +1,234 @@
+/* -*- 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 <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+
+#include <comphelper/accessiblekeybindinghelper.hxx>
+#include <swurl.hxx>
+#include <vcl/svapp.hxx>
+#include <frmfmt.hxx>
+
+#include "accnotexthyperlink.hxx"
+
+#include <fmturl.hxx>
+
+#include <vcl/imap.hxx>
+#include <vcl/imapobj.hxx>
+#include <vcl/keycodes.hxx>
+
+#include <accmap.hxx>
+
+using namespace css;
+using namespace css::lang;
+using namespace css::uno;
+using namespace css::accessibility;
+
+SwAccessibleNoTextHyperlink::SwAccessibleNoTextHyperlink( SwAccessibleNoTextFrame *p, const SwFrame *aFrame ) :
+    mxFrame( p ),
+    mpFrame( aFrame )
+{
+}
+
+// XAccessibleAction
+sal_Int32 SAL_CALL SwAccessibleNoTextHyperlink::getAccessibleActionCount()
+{
+    SolarMutexGuard g;
+
+    SwFormatURL aURL( GetFormat()->GetURL() );
+    ImageMap* pMap = aURL.GetMap();
+    if( pMap != nullptr )
+    {
+        return pMap->GetIMapObjectCount();
+    }
+    else if( !aURL.GetURL().isEmpty() )
+    {
+        return 1;
+    }
+
+    return 0;
+}
+
+sal_Bool SAL_CALL SwAccessibleNoTextHyperlink::doAccessibleAction( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    if(nIndex < 0 || nIndex >= getAccessibleActionCount())
+        throw lang::IndexOutOfBoundsException();
+
+    bool bRet = false;
+    SwFormatURL aURL( GetFormat()->GetURL() );
+    ImageMap* pMap = aURL.GetMap();
+    if( pMap != nullptr )
+    {
+        IMapObject* pMapObj = pMap->GetIMapObject(nIndex);
+        if (!pMapObj->GetURL().isEmpty())
+        {
+            SwViewShell *pVSh = mxFrame->GetShell();
+            if( pVSh )
+            {
+                LoadURL( *pVSh, pMapObj->GetURL(), LoadUrlFlags::NONE,
+                         pMapObj->GetTarget() );
+                bRet = true;
+            }
+        }
+    }
+    else if (!aURL.GetURL().isEmpty())
+    {
+        SwViewShell *pVSh = mxFrame->GetShell();
+        if( pVSh )
+        {
+            LoadURL( *pVSh, aURL.GetURL(), LoadUrlFlags::NONE,
+                     aURL.GetTargetFrameName() );
+            bRet = true;
+        }
+    }
+
+    return bRet;
+}
+
+OUString SAL_CALL SwAccessibleNoTextHyperlink::getAccessibleActionDescription(
+        sal_Int32 nIndex )
+{
+    SolarMutexGuard g;
+
+    OUString sDesc;
+
+    if(nIndex < 0 || nIndex >= getAccessibleActionCount())
+        throw lang::IndexOutOfBoundsException();
+
+    SwFormatURL aURL( GetFormat()->GetURL() );
+    ImageMap* pMap = aURL.GetMap();
+    if( pMap != nullptr )
+    {
+        IMapObject* pMapObj = pMap->GetIMapObject(nIndex);
+        if (!pMapObj->GetDesc().isEmpty())
+            sDesc = pMapObj->GetDesc();
+        else if (!pMapObj->GetURL().isEmpty())
+            sDesc = pMapObj->GetURL();
+    }
+    else if( !aURL.GetURL().isEmpty() )
+        sDesc = aURL.GetName();
+
+    return sDesc;
+}
+
+Reference< XAccessibleKeyBinding > SAL_CALL
+    SwAccessibleNoTextHyperlink::getAccessibleActionKeyBinding( sal_Int32 nIndex )
+{
+    SolarMutexGuard g;
+
+    Reference< XAccessibleKeyBinding > xKeyBinding;
+
+    if(nIndex < 0 || nIndex >= getAccessibleActionCount())
+        throw lang::IndexOutOfBoundsException();
+
+    bool bIsValid = false;
+    SwFormatURL aURL( GetFormat()->GetURL() );
+    ImageMap* pMap = aURL.GetMap();
+    if( pMap != nullptr )
+    {
+        IMapObject* pMapObj = pMap->GetIMapObject(nIndex);
+        if (!pMapObj->GetURL().isEmpty())
+            bIsValid = true;
+    }
+    else if (!aURL.GetURL().isEmpty())
+        bIsValid = true;
+
+    if(bIsValid)
+    {
+        rtl::Reference<::comphelper::OAccessibleKeyBindingHelper> pKeyBindingHelper =
+            new ::comphelper::OAccessibleKeyBindingHelper();
+        xKeyBinding = pKeyBindingHelper;
+
+        css::awt::KeyStroke aKeyStroke;
+        aKeyStroke.Modifiers = 0;
+        aKeyStroke.KeyCode = KEY_RETURN;
+        aKeyStroke.KeyChar = 0;
+        aKeyStroke.KeyFunc = 0;
+        pKeyBindingHelper->AddKeyBinding( aKeyStroke );
+    }
+
+    return xKeyBinding;
+}
+
+// XAccessibleHyperlink
+Any SAL_CALL SwAccessibleNoTextHyperlink::getAccessibleActionAnchor(
+        sal_Int32 nIndex )
+{
+    SolarMutexGuard g;
+
+    if(nIndex < 0 || nIndex >= getAccessibleActionCount())
+        throw lang::IndexOutOfBoundsException();
+
+    Any aRet;
+    //SwFrame* pAnchor = static_cast<SwFlyFrame*>(mpFrame)->GetAnchor();
+    Reference< XAccessible > xAnchor = mxFrame->GetAccessibleMap()->GetContext(mpFrame);
+    //SwAccessibleNoTextFrame* pFrame = xFrame.get();
+    //Reference< XAccessible > xAnchor = (XAccessible*)pFrame;
+    aRet <<= xAnchor;
+    return aRet;
+}
+
+Any SAL_CALL SwAccessibleNoTextHyperlink::getAccessibleActionObject(
+            sal_Int32 nIndex )
+{
+    SolarMutexGuard g;
+
+    if(nIndex < 0 || nIndex >= getAccessibleActionCount())
+        throw lang::IndexOutOfBoundsException();
+
+    SwFormatURL aURL( GetFormat()->GetURL() );
+    OUString retText;
+    ImageMap* pMap = aURL.GetMap();
+    if( pMap != nullptr )
+    {
+        IMapObject* pMapObj = pMap->GetIMapObject(nIndex);
+        if (!pMapObj->GetURL().isEmpty())
+            retText = pMapObj->GetURL();
+    }
+    else if ( !aURL.GetURL().isEmpty() )
+        retText = aURL.GetURL();
+
+    Any aRet;
+    aRet <<= retText;
+    return aRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleNoTextHyperlink::getStartIndex()
+{
+    return 0;
+}
+
+sal_Int32 SAL_CALL SwAccessibleNoTextHyperlink::getEndIndex()
+{
+    return 0;
+}
+
+sal_Bool SAL_CALL SwAccessibleNoTextHyperlink::isValid(  )
+{
+    SolarMutexGuard g;
+
+    SwFormatURL aURL( GetFormat()->GetURL() );
+
+    if( aURL.GetMap() || !aURL.GetURL().isEmpty() )
+        return true;
+    return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accnotexthyperlink.hxx b/sw/source/core/access/accnotexthyperlink.hxx
new file mode 100644
index 000000000..b986abc87
--- /dev/null
+++ b/sw/source/core/access/accnotexthyperlink.hxx
@@ -0,0 +1,65 @@
+/* -*- 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 .
+ */
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCNOTEXTHYPERLINK_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCNOTEXTHYPERLINK_HXX
+
+#include <com/sun/star/accessibility/XAccessibleHyperlink.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <layfrm.hxx>
+
+#include "accnotextframe.hxx"
+
+class SwAccessibleNoTextHyperlink :
+        public ::cppu::WeakImplHelper<
+        css::accessibility::XAccessibleHyperlink >
+{
+    friend class SwAccessibleNoTextFrame;
+
+    ::rtl::Reference< SwAccessibleNoTextFrame > mxFrame;
+    const SwFrame *mpFrame;
+
+    SwFrameFormat *GetFormat()
+    {
+        return const_cast<SwLayoutFrame*>(static_cast<const SwLayoutFrame*>(mpFrame))->GetFormat();
+    }
+public:
+
+    SwAccessibleNoTextHyperlink( SwAccessibleNoTextFrame *p, const SwFrame* aFrame );
+
+    // XAccessibleAction
+    virtual sal_Int32 SAL_CALL getAccessibleActionCount() override;
+    virtual sal_Bool SAL_CALL doAccessibleAction( sal_Int32 nIndex ) override;
+    virtual OUString SAL_CALL getAccessibleActionDescription(
+                sal_Int32 nIndex ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessibleKeyBinding > SAL_CALL
+            getAccessibleActionKeyBinding( sal_Int32 nIndex ) override;
+
+    // XAccessibleHyperlink
+    virtual css::uno::Any SAL_CALL getAccessibleActionAnchor(
+                sal_Int32 nIndex ) override;
+    virtual css::uno::Any SAL_CALL getAccessibleActionObject(
+            sal_Int32 nIndex ) override;
+    virtual sal_Int32 SAL_CALL getStartIndex() override;
+    virtual sal_Int32 SAL_CALL getEndIndex() override;
+    virtual sal_Bool SAL_CALL isValid(  ) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accpage.cxx b/sw/source/core/access/accpage.cxx
new file mode 100644
index 000000000..a22b01970
--- /dev/null
+++ b/sw/source/core/access/accpage.cxx
@@ -0,0 +1,160 @@
+/* -*- 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 <vcl/window.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include "accpage.hxx"
+
+#include <strings.hrc>
+#include <pagefrm.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+using uno::Sequence;
+
+constexpr OUStringLiteral sImplementationName = u"com.sun.star.comp.Writer.SwAccessiblePageView";
+
+bool SwAccessiblePage::IsSelected()
+{
+    return GetMap()->IsPageSelected( static_cast < const SwPageFrame * >( GetFrame() ) );
+}
+
+void SwAccessiblePage::GetStates(
+        ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SwAccessibleContext::GetStates( rStateSet );
+
+    // FOCUSABLE
+    rStateSet.AddState( AccessibleStateType::FOCUSABLE );
+
+    // FOCUSED
+    if( IsSelected() )
+    {
+        OSL_ENSURE( m_bIsSelected, "bSelected out of sync" );
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+
+        vcl::Window *pWin = GetWindow();
+        if( pWin && pWin->HasFocus() )
+            rStateSet.AddState( AccessibleStateType::FOCUSED );
+    }
+}
+
+void SwAccessiblePage::InvalidateCursorPos_()
+{
+    bool bNewSelected = IsSelected();
+    bool bOldSelected;
+
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bOldSelected = m_bIsSelected;
+        m_bIsSelected = bNewSelected;
+    }
+
+    if( bNewSelected )
+    {
+        // remember that object as the one that has the caret. This is
+        // necessary to notify that object if the cursor leaves it.
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+
+    if( bOldSelected != bNewSelected )
+    {
+        vcl::Window *pWin = GetWindow();
+        if( pWin && pWin->HasFocus() )
+            FireStateChangedEvent( AccessibleStateType::FOCUSED, bNewSelected );
+    }
+}
+
+void SwAccessiblePage::InvalidateFocus_()
+{
+    vcl::Window *pWin = GetWindow();
+    if( !pWin )
+        return;
+
+    bool bSelected;
+
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bSelected = m_bIsSelected;
+    }
+    OSL_ENSURE( bSelected, "focus object should be selected" );
+
+    FireStateChangedEvent( AccessibleStateType::FOCUSED,
+                           pWin->HasFocus() && bSelected );
+}
+
+SwAccessiblePage::SwAccessiblePage(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                                    const SwFrame* pFrame )
+    : SwAccessibleContext( pInitMap, AccessibleRole::PANEL, pFrame )
+    , m_bIsSelected( false )
+{
+    assert(pFrame != nullptr);
+    assert(pInitMap != nullptr);
+    assert(pFrame->IsPageFrame());
+
+    OUString sPage = OUString::number(
+        static_cast<const SwPageFrame*>( GetFrame() )->GetPhyPageNum() );
+    SetName( GetResource( STR_ACCESS_PAGE_NAME, &sPage ) );
+}
+
+SwAccessiblePage::~SwAccessiblePage()
+{
+}
+
+bool SwAccessiblePage::HasCursor()
+{
+    std::scoped_lock aGuard( m_Mutex );
+    return m_bIsSelected;
+}
+
+OUString SwAccessiblePage::getImplementationName( )
+{
+    return sImplementationName;
+}
+
+sal_Bool SwAccessiblePage::supportsService( const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+Sequence<OUString> SwAccessiblePage::getSupportedServiceNames( )
+{
+    return { "com.sun.star.text.AccessiblePageView", sAccessibleServiceName };
+}
+
+Sequence< sal_Int8 > SAL_CALL SwAccessiblePage::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+OUString SwAccessiblePage::getAccessibleDescription( )
+{
+    ThrowIfDisposed();
+
+    OUString sArg( GetFormattedPageNumber() );
+    return GetResource( STR_ACCESS_PAGE_DESC, &sArg );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accpage.hxx b/sw/source/core/access/accpage.hxx
new file mode 100644
index 000000000..006eda746
--- /dev/null
+++ b/sw/source/core/access/accpage.hxx
@@ -0,0 +1,77 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPAGE_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPAGE_HXX
+
+#include "acccontext.hxx"
+
+/**
+ * accessibility implementation for the page (SwPageFrame)
+ * The page is _only_ visible in the page preview. For the regular
+ * document view, it doesn't make sense to add this additional element
+ * into the hierarchy. For the page preview, however, the page is the
+ * important.
+ */
+class SwAccessiblePage : public SwAccessibleContext
+{
+    bool    m_bIsSelected;    // protected by base class mutex
+
+    bool    IsSelected();
+
+    using SwAccessibleFrame::GetBounds;
+
+protected:
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets
+    // FOCUSABLE(1) and FOCUSED(+)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    virtual void InvalidateCursorPos_() override;
+    virtual void InvalidateFocus_() override;
+
+    virtual ~SwAccessiblePage() override;
+
+public:
+    // convenience constructor to avoid typecast;
+    // may only be called with SwPageFrame argument
+    SwAccessiblePage(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                     const SwFrame* pFrame);
+
+    // XAccessibleContext methods that need to be overridden
+
+    virtual OUString SAL_CALL getAccessibleDescription() override;
+
+    // XServiceInfo
+
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService (
+        const OUString& sServiceName) override;
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    virtual bool HasCursor() override;   // required by map to remember that object
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accpara.cxx b/sw/source/core/access/accpara.cxx
new file mode 100644
index 000000000..f3b0d9070
--- /dev/null
+++ b/sw/source/core/access/accpara.cxx
@@ -0,0 +1,3546 @@
+/* -*- 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 <memory>
+#include <numeric>
+#include <txtfrm.hxx>
+#include <flyfrm.hxx>
+#include <mdiexp.hxx>
+#include <ndtxt.hxx>
+#include <pam.hxx>
+#include <unotextrange.hxx>
+#include <unocrsrhelper.hxx>
+#include <crstate.hxx>
+#include <accmap.hxx>
+#include <fesh.hxx>
+#include <viewopt.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <sal/log.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleScrollType.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleTextType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <com/sun/star/i18n/Boundary.hpp>
+#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
+#include <com/sun/star/i18n/WordType.hpp>
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/beans/UnknownPropertyException.hpp>
+#include <breakit.hxx>
+#include "accpara.hxx"
+#include "accportions.hxx"
+#include <sfx2/viewsh.hxx>
+#include <sfx2/viewfrm.hxx>
+#include <sfx2/dispatch.hxx>
+#include <unocrsr.hxx>
+#include <unoport.hxx>
+#include <doc.hxx>
+#include <IDocumentRedlineAccess.hxx>
+#include "acchyperlink.hxx"
+#include "acchypertextdata.hxx"
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
+#include <comphelper/accessibletexthelper.hxx>
+#include <algorithm>
+#include <docufld.hxx>
+#include <txtfld.hxx>
+#include <fmtfld.hxx>
+#include <modcfg.hxx>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <swmodule.hxx>
+#include <redline.hxx>
+#include <com/sun/star/awt/FontWeight.hpp>
+#include <com/sun/star/awt/FontStrikeout.hpp>
+#include <com/sun/star/awt/FontSlant.hpp>
+#include <wrong.hxx>
+#include <editeng/brushitem.hxx>
+#include <editeng/unoprnms.hxx>
+#include <editeng/lrspitem.hxx>
+#include <editeng/ulspitem.hxx>
+#include <swatrset.hxx>
+#include <unosett.hxx>
+#include <unomap.hxx>
+#include <unoprnms.hxx>
+#include <com/sun/star/text/WritingMode2.hpp>
+#include <viewimp.hxx>
+#include "textmarkuphelper.hxx"
+#include "parachangetrackinginfo.hxx"
+#include <com/sun/star/text/TextMarkupType.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/typeprovider.hxx>
+#include <svx/colorwindow.hxx>
+#include <o3tl/string_view.hxx>
+#include <editeng/editids.hrc>
+
+#include <reffld.hxx>
+#include <flddat.hxx>
+#include "../../uibase/inc/fldmgr.hxx"
+#include <fldbas.hxx>      // SwField
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star::container;
+
+using beans::PropertyValue;
+using beans::XMultiPropertySet;
+using beans::UnknownPropertyException;
+using beans::PropertyState_DIRECT_VALUE;
+
+using std::max;
+using std::min;
+using std::sort;
+
+namespace com::sun::star::text {
+    class XText;
+}
+
+constexpr OUStringLiteral sServiceName = u"com.sun.star.text.AccessibleParagraphView";
+constexpr OUStringLiteral sImplementationName = u"com.sun.star.comp.Writer.SwAccessibleParagraphView";
+
+OUString const & SwAccessibleParagraph::GetString()
+{
+    return GetPortionData().GetAccessibleString();
+}
+
+OUString SwAccessibleParagraph::GetDescription()
+{
+    return OUString(); // provide empty description for paragraphs
+}
+
+sal_Int32 SwAccessibleParagraph::GetCaretPos()
+{
+    sal_Int32 nRet = -1;
+
+    // get the selection's point, and test whether it's in our node
+    // #i27301# - consider adjusted method signature
+    SwPaM* pCaret = GetCursor( false );  // caret is first PaM in PaM-ring
+
+    if( pCaret != nullptr )
+    {
+        SwTextFrame const*const pTextFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        assert(pTextFrame);
+
+        // check whether the point points into 'our' node
+        SwPosition* pPoint = pCaret->GetPoint();
+        if (sw::FrameContainsNode(*pTextFrame, pPoint->nNode.GetIndex()))
+        {
+            // same node? Then check whether it's also within 'our' part
+            // of the paragraph
+            const TextFrameIndex nIndex = pTextFrame->MapModelToViewPos(*pPoint);
+            if(!GetPortionData().IsValidCorePosition( nIndex ) ||
+                (GetPortionData().IsZeroCorePositionData()
+                  && nIndex == TextFrameIndex(0)))
+            {
+                bool bFormat = pTextFrame->HasPara();
+                if(bFormat)
+                {
+                    ClearPortionData();
+                    UpdatePortionData();
+                }
+            }
+            if( GetPortionData().IsValidCorePosition( nIndex ) )
+            {
+                // Yes, it's us!
+                // consider that cursor/caret is in front of the list label
+                if ( pCaret->IsInFrontOfLabel() )
+                {
+                    nRet = 0;
+                }
+                else
+                {
+                    nRet = GetPortionData().GetAccessiblePosition( nIndex );
+                }
+
+                OSL_ENSURE( nRet >= 0, "invalid cursor?" );
+                OSL_ENSURE( nRet <= GetPortionData().GetAccessibleString().
+                                              getLength(), "invalid cursor?" );
+            }
+            // else: in this paragraph, but in different frame
+        }
+        // else: not in this paragraph
+    }
+    // else: no cursor -> no caret
+
+    return nRet;
+}
+
+// #i27301# - new parameter <_bForSelection>
+SwPaM* SwAccessibleParagraph::GetCursor( const bool _bForSelection )
+{
+    // get the cursor shell; if we don't have any, we don't have a
+    // cursor/selection either
+    SwPaM* pCursor = nullptr;
+    SwCursorShell* pCursorShell = SwAccessibleParagraph::GetCursorShell();
+    // #i27301# - if cursor is retrieved for selection, the cursors for
+    // a table selection has to be returned.
+    if ( pCursorShell != nullptr &&
+         ( _bForSelection || !pCursorShell->IsTableMode() ) )
+    {
+        SwFEShell *pFESh = dynamic_cast<SwFEShell*>(pCursorShell);
+        if( !pFESh ||
+            !(pFESh->IsFrameSelected() || pFESh->IsObjSelected() > 0) )
+        {
+            // get the selection, and test whether it affects our text node
+            pCursor = pCursorShell->GetCursor( false /* ??? */ );
+        }
+    }
+
+    return pCursor;
+}
+
+bool SwAccessibleParagraph::IsHeading() const
+{
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    const SwTextNode *pTextNd = pFrame->GetTextNodeForParaProps();
+    return pTextNd->IsOutline();
+}
+
+void SwAccessibleParagraph::GetStates(
+        ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SwAccessibleContext::GetStates( rStateSet );
+
+    // MULTILINE
+    rStateSet.AddState( AccessibleStateType::MULTI_LINE );
+
+    if (GetCursorShell())
+    {
+        // MULTISELECTABLE
+        rStateSet.AddState(AccessibleStateType::MULTI_SELECTABLE);
+        // FOCUSABLE
+        rStateSet.AddState(AccessibleStateType::FOCUSABLE);
+    }
+
+    // FOCUSED (simulates node index of cursor)
+    SwPaM* pCaret = GetCursor( false ); // #i27301# - consider adjusted method signature
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    assert(pFrame);
+    if (pCaret != nullptr &&
+        sw::FrameContainsNode(*pFrame, pCaret->GetPoint()->nNode.GetIndex()) &&
+        m_nOldCaretPos != -1)
+    {
+        vcl::Window *pWin = GetWindow();
+        if( pWin && pWin->HasFocus() )
+            rStateSet.AddState( AccessibleStateType::FOCUSED );
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+}
+
+void SwAccessibleParagraph::InvalidateContent_( bool bVisibleDataFired )
+{
+    OUString sOldText( GetString() );
+
+    ClearPortionData();
+
+    const OUString& rText = GetString();
+
+    if( rText != sOldText )
+    {
+        // The text is changed
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::TEXT_CHANGED;
+
+        // determine exact changes between sOldText and rText
+        (void)comphelper::OCommonAccessibleText::implInitTextChangedEvent(sOldText, rText,
+                                                                          aEvent.OldValue,
+                                                                          aEvent.NewValue);
+
+        FireAccessibleEvent( aEvent );
+        uno::Reference< XAccessible > xparent = getAccessibleParent();
+        uno::Reference< XAccessibleContext > xAccContext(xparent,uno::UNO_QUERY);
+        if (xAccContext.is() && xAccContext->getAccessibleRole() == AccessibleRole::TABLE_CELL)
+        {
+            SwAccessibleContext* pPara = static_cast< SwAccessibleContext* >(xparent.get());
+            if(pPara)
+            {
+                AccessibleEventObject aParaEvent;
+                aParaEvent.EventId = AccessibleEventId::VALUE_CHANGED;
+                pPara->FireAccessibleEvent(aParaEvent);
+            }
+        }
+    }
+    else if( !bVisibleDataFired )
+    {
+        FireVisibleDataEvent();
+    }
+
+    bool bNewIsHeading = IsHeading();
+    //Get the real heading level, Heading1 ~ Heading10
+    m_nHeadingLevel = GetRealHeadingLevel();
+    bool bOldIsHeading;
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        bOldIsHeading = m_bIsHeading;
+        if( m_bIsHeading != bNewIsHeading )
+            m_bIsHeading = bNewIsHeading;
+    }
+
+    if( bNewIsHeading != bOldIsHeading )
+    {
+        // The role has changed
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::ROLE_CHANGED;
+
+        FireAccessibleEvent( aEvent );
+    }
+
+    if( rText == sOldText )
+        return;
+
+    OUString sNewDesc( GetDescription() );
+    OUString sOldDesc;
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        sOldDesc = m_sDesc;
+        if( m_sDesc != sNewDesc )
+            m_sDesc = sNewDesc;
+    }
+
+    if( sNewDesc != sOldDesc )
+    {
+        // The text is changed
+        AccessibleEventObject aEvent;
+        aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED;
+        aEvent.OldValue <<= sOldDesc;
+        aEvent.NewValue <<= sNewDesc;
+
+        FireAccessibleEvent( aEvent );
+    }
+}
+
+void SwAccessibleParagraph::InvalidateCursorPos_()
+{
+    // The text is changed
+    sal_Int32 nNew = GetCaretPos();
+    sal_Int32 nOld;
+    {
+        std::scoped_lock aGuard( m_Mutex );
+        nOld = m_nOldCaretPos;
+        m_nOldCaretPos = nNew;
+    }
+    if( -1 != nNew )
+    {
+        // remember that object as the one that has the caret. This is
+        // necessary to notify that object if the cursor leaves it.
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+
+    vcl::Window *pWin = GetWindow();
+    if( nOld == nNew )
+        return;
+
+    // The cursor's node position is simulated by the focus!
+    if( pWin && pWin->HasFocus() && -1 == nOld )
+        FireStateChangedEvent( AccessibleStateType::FOCUSED, true );
+
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::CARET_CHANGED;
+    aEvent.OldValue <<= nOld;
+    aEvent.NewValue <<= nNew;
+
+    FireAccessibleEvent( aEvent );
+
+    if( pWin && pWin->HasFocus() && -1 == nNew )
+        FireStateChangedEvent( AccessibleStateType::FOCUSED, false );
+    //To send TEXT_SELECTION_CHANGED event
+    sal_Int32 nStart=0;
+    sal_Int32 nEnd  =0;
+    bool bCurSelection = GetSelection(nStart,nEnd);
+    if(m_bLastHasSelection || bCurSelection )
+    {
+        aEvent.EventId = AccessibleEventId::TEXT_SELECTION_CHANGED;
+        aEvent.OldValue.clear();
+        aEvent.NewValue.clear();
+        FireAccessibleEvent(aEvent);
+    }
+    m_bLastHasSelection =bCurSelection;
+
+}
+
+void SwAccessibleParagraph::InvalidateFocus_()
+{
+    vcl::Window *pWin = GetWindow();
+    if( pWin )
+    {
+        sal_Int32 nPos;
+        {
+            std::scoped_lock aGuard( m_Mutex );
+            nPos = m_nOldCaretPos;
+        }
+        OSL_ENSURE( nPos != -1, "focus object should be selected" );
+
+        FireStateChangedEvent( AccessibleStateType::FOCUSED,
+                               pWin->HasFocus() && nPos != -1 );
+    }
+}
+
+SwAccessibleParagraph::SwAccessibleParagraph(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwTextFrame& rTextFrame )
+    : SwAccessibleContext( pInitMap, AccessibleRole::PARAGRAPH, &rTextFrame )
+    , m_nOldCaretPos( -1 )
+    , m_bIsHeading( false )
+    //Get the real heading level, Heading1 ~ Heading10
+    , m_nHeadingLevel (-1)
+    , m_aSelectionHelper( *this )
+    , mpParaChangeTrackInfo( new SwParaChangeTrackingInfo( rTextFrame ) ) // #i108125#
+    , m_bLastHasSelection(false)  //To add TEXT_SELECTION_CHANGED event
+{
+    StartListening(const_cast<SwTextFrame&>(rTextFrame));
+    m_bIsHeading = IsHeading();
+    //Get the real heading level, Heading1 ~ Heading10
+    m_nHeadingLevel = GetRealHeadingLevel();
+    SetName( OUString() ); // set an empty accessibility name for paragraphs
+}
+
+SwAccessibleParagraph::~SwAccessibleParagraph()
+{
+    SolarMutexGuard aGuard;
+
+    m_pPortionData.reset();
+    m_pHyperTextData.reset();
+    mpParaChangeTrackInfo.reset(); // #i108125#
+    EndListeningAll();
+}
+
+bool SwAccessibleParagraph::HasCursor()
+{
+    std::scoped_lock aGuard( m_Mutex );
+    return m_nOldCaretPos != -1;
+}
+
+void SwAccessibleParagraph::UpdatePortionData()
+{
+    // obtain the text frame
+    const SwTextFrame* pFrame = static_cast<const SwTextFrame*>( GetFrame() );
+    OSL_ENSURE( pFrame != nullptr, "The text frame has vanished!" );
+    if (!pFrame)
+        ClearPortionData();
+    else
+    {
+        OSL_ENSURE( pFrame->IsTextFrame(), "The text frame has mutated!" );
+        // build new portion data
+        m_pPortionData.reset( new SwAccessiblePortionData(
+            pFrame, GetMap()->GetShell()->GetViewOptions()) );
+        pFrame->VisitPortions( *m_pPortionData );
+    }
+    OSL_ENSURE( m_pPortionData != nullptr, "UpdatePortionData() failed" );
+}
+
+void SwAccessibleParagraph::ClearPortionData()
+{
+    m_pPortionData.reset();
+    m_pHyperTextData.reset();
+}
+
+void SwAccessibleParagraph::ExecuteAtViewShell( sal_uInt16 nSlot )
+{
+    OSL_ENSURE( GetMap() != nullptr, "no map?" );
+    SwViewShell* pViewShell = GetMap()->GetShell();
+
+    OSL_ENSURE( pViewShell != nullptr, "View shell expected!" );
+    SfxViewShell* pSfxShell = pViewShell->GetSfxViewShell();
+
+    OSL_ENSURE( pSfxShell != nullptr, "SfxViewShell shell expected!" );
+    if( !pSfxShell )
+        return;
+
+    SfxViewFrame *pFrame = pSfxShell->GetViewFrame();
+    OSL_ENSURE( pFrame != nullptr, "View frame expected!" );
+    if( !pFrame )
+        return;
+
+    SfxDispatcher *pDispatcher = pFrame->GetDispatcher();
+    OSL_ENSURE( pDispatcher != nullptr, "Dispatcher expected!" );
+    if( !pDispatcher )
+        return;
+
+    pDispatcher->Execute( nSlot );
+}
+
+rtl::Reference<SwXTextPortion> SwAccessibleParagraph::CreateUnoPortion(
+    sal_Int32 nStartIndex,
+    sal_Int32 nEndIndex )
+{
+    OSL_ENSURE( (IsValidChar(nStartIndex, GetString().getLength()) &&
+                 (nEndIndex == -1)) ||
+                IsValidRange(nStartIndex, nEndIndex, GetString().getLength()),
+                "please check parameters before calling this method" );
+
+    const TextFrameIndex nStart = GetPortionData().GetCoreViewPosition(nStartIndex);
+    const TextFrameIndex nEnd = (nEndIndex == -1)
+            ? (nStart + TextFrameIndex(1))
+            : GetPortionData().GetCoreViewPosition(nEndIndex);
+
+    // create UNO cursor
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    SwPosition aStartPos(pFrame->MapViewToModelPos(nStart));
+    auto pUnoCursor(const_cast<SwDoc&>(pFrame->GetDoc()).CreateUnoCursor(aStartPos));
+    pUnoCursor->SetMark();
+    *pUnoCursor->GetMark() = pFrame->MapViewToModelPos(nEnd);
+
+    // create a (dummy) text portion to be returned
+    uno::Reference<text::XText> aEmpty;
+    return new SwXTextPortion ( pUnoCursor.get(), aEmpty, PORTION_TEXT);
+}
+
+// range checking for parameter
+
+bool SwAccessibleParagraph::IsValidChar(
+    sal_Int32 nPos, sal_Int32 nLength)
+{
+    return (nPos >= 0) && (nPos < nLength);
+}
+
+bool SwAccessibleParagraph::IsValidPosition(
+    sal_Int32 nPos, sal_Int32 nLength)
+{
+    return (nPos >= 0) && (nPos <= nLength);
+}
+
+bool SwAccessibleParagraph::IsValidRange(
+    sal_Int32 nBegin, sal_Int32 nEnd, sal_Int32 nLength)
+{
+    return IsValidPosition(nBegin, nLength) && IsValidPosition(nEnd, nLength);
+}
+
+//the function is to check whether the position is in a redline range.
+const SwRangeRedline* SwAccessibleParagraph::GetRedlineAtIndex()
+{
+    const SwRangeRedline* pRedline = nullptr;
+    SwPaM* pCrSr = GetCursor( true );
+    if ( pCrSr )
+    {
+        SwPosition* pStart = pCrSr->Start();
+        pRedline = pStart->GetDoc().getIDocumentRedlineAccess().GetRedline(*pStart, nullptr);
+    }
+
+    return pRedline;
+}
+
+// text boundaries
+
+bool SwAccessibleParagraph::GetCharBoundary(
+    i18n::Boundary& rBound,
+    sal_Int32 nPos )
+{
+    if( GetPortionData().FillBoundaryIFDateField( rBound,  nPos) )
+        return true;
+
+    rBound.startPos = nPos;
+    rBound.endPos = nPos+1;
+    return true;
+}
+
+bool SwAccessibleParagraph::GetWordBoundary(
+    i18n::Boundary& rBound,
+    const OUString& rText,
+    sal_Int32 nPos )
+{
+    // now ask the Break-Iterator for the word
+    assert(g_pBreakIt && g_pBreakIt->GetBreakIter().is());
+
+    // get locale for this position
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    const TextFrameIndex nCorePos = GetPortionData().GetCoreViewPosition(nPos);
+    lang::Locale aLocale = g_pBreakIt->GetLocale(pFrame->GetLangOfChar(nCorePos, 0, true));
+
+    // which type of word are we interested in?
+    // (DICTIONARY_WORD includes punctuation, ANY_WORD doesn't.)
+    const sal_Int16 nWordType = i18n::WordType::ANY_WORD;
+
+    // get word boundary, as the Break-Iterator sees fit.
+    rBound = g_pBreakIt->GetBreakIter()->getWordBoundary(
+        rText, nPos, aLocale, nWordType, true );
+
+    return true;
+}
+
+bool SwAccessibleParagraph::GetSentenceBoundary(
+    i18n::Boundary& rBound,
+    const OUString& rText,
+    sal_Int32 nPos )
+{
+    const sal_Unicode* pStr = rText.getStr();
+    while( nPos < rText.getLength() && pStr[nPos] == u' ' )
+        nPos++;
+
+    GetPortionData().GetSentenceBoundary( rBound, nPos );
+    return true;
+}
+
+bool SwAccessibleParagraph::GetLineBoundary(
+    i18n::Boundary& rBound,
+    const OUString& rText,
+    sal_Int32 nPos )
+{
+    if( rText.getLength() == nPos )
+        GetPortionData().GetLastLineBoundary( rBound );
+    else
+        GetPortionData().GetLineBoundary( rBound, nPos );
+    return true;
+}
+
+bool SwAccessibleParagraph::GetParagraphBoundary(
+    i18n::Boundary& rBound,
+    const OUString& rText )
+{
+    rBound.startPos = 0;
+    rBound.endPos = rText.getLength();
+    return true;
+}
+
+bool SwAccessibleParagraph::GetAttributeBoundary(
+    i18n::Boundary& rBound,
+    sal_Int32 nPos )
+{
+    GetPortionData().GetAttributeBoundary( rBound, nPos );
+    return true;
+}
+
+bool SwAccessibleParagraph::GetGlyphBoundary(
+    i18n::Boundary& rBound,
+    const OUString& rText,
+    sal_Int32 nPos )
+{
+    // ask the Break-Iterator for the glyph by moving one cell
+    // forward, and then one cell back
+    assert(g_pBreakIt && g_pBreakIt->GetBreakIter().is());
+
+    // get locale for this position
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    const TextFrameIndex nCorePos = GetPortionData().GetCoreViewPosition(nPos);
+    lang::Locale aLocale = g_pBreakIt->GetLocale(pFrame->GetLangOfChar(nCorePos, 0, true));
+
+    // get word boundary, as the Break-Iterator sees fit.
+    const sal_Int16 nIterMode = i18n::CharacterIteratorMode::SKIPCELL;
+    sal_Int32 nDone = 0;
+    rBound.endPos = g_pBreakIt->GetBreakIter()->nextCharacters(
+         rText, nPos, aLocale, nIterMode, 1, nDone );
+    rBound.startPos = g_pBreakIt->GetBreakIter()->previousCharacters(
+         rText, rBound.endPos, aLocale, nIterMode, 1, nDone );
+    bool bRet = ((rBound.startPos <= nPos) && (nPos <= rBound.endPos));
+    OSL_ENSURE( rBound.startPos <= nPos, "start pos too high" );
+    OSL_ENSURE( rBound.endPos >= nPos, "end pos too low" );
+
+    return bRet;
+}
+
+bool SwAccessibleParagraph::GetTextBoundary(
+    i18n::Boundary& rBound,
+    const OUString& rText,
+    sal_Int32 nPos,
+    sal_Int16 nTextType )
+{
+    // error checking
+    if( !( AccessibleTextType::LINE == nTextType
+                ? IsValidPosition( nPos, rText.getLength() )
+                : IsValidChar( nPos, rText.getLength() ) ) )
+        throw lang::IndexOutOfBoundsException();
+
+    bool bRet;
+
+    switch( nTextType )
+    {
+        case AccessibleTextType::WORD:
+            bRet = GetWordBoundary(rBound, rText, nPos);
+            break;
+
+        case AccessibleTextType::SENTENCE:
+            bRet = GetSentenceBoundary( rBound, rText, nPos );
+            break;
+
+        case AccessibleTextType::PARAGRAPH:
+            bRet = GetParagraphBoundary( rBound, rText );
+            break;
+
+        case AccessibleTextType::CHARACTER:
+            bRet = GetCharBoundary( rBound, nPos );
+            break;
+
+        case AccessibleTextType::LINE:
+            //Solve the problem of returning wrong LINE and PARAGRAPH
+            if((nPos == rText.getLength()) && nPos > 0)
+                bRet = GetLineBoundary( rBound, rText, nPos - 1);
+            else
+                bRet = GetLineBoundary( rBound, rText, nPos );
+            break;
+
+        case AccessibleTextType::ATTRIBUTE_RUN:
+            bRet = GetAttributeBoundary( rBound, nPos );
+            break;
+
+        case AccessibleTextType::GLYPH:
+            bRet = GetGlyphBoundary( rBound, rText, nPos );
+            break;
+
+        default:
+            throw lang::IllegalArgumentException( );
+    }
+
+    return bRet;
+}
+
+OUString SAL_CALL SwAccessibleParagraph::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    std::scoped_lock aGuard2( m_Mutex );
+    if( m_sDesc.isEmpty() )
+        m_sDesc = GetDescription();
+
+    return m_sDesc;
+}
+
+lang::Locale SAL_CALL SwAccessibleParagraph::getLocale()
+{
+    SolarMutexGuard aGuard;
+
+    const SwTextFrame *pTextFrame = GetFrame()->DynCastTextFrame();
+    if( !pTextFrame )
+    {
+        throw uno::RuntimeException("no SwTextFrame", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    lang::Locale aLoc(g_pBreakIt->GetLocale(pTextFrame->GetLangOfChar(TextFrameIndex(0), 0, true)));
+
+    return aLoc;
+}
+
+// #i27138# - paragraphs are in relation CONTENT_FLOWS_FROM and/or CONTENT_FLOWS_TO
+uno::Reference<XAccessibleRelationSet> SAL_CALL SwAccessibleParagraph::getAccessibleRelationSet()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    rtl::Reference<utl::AccessibleRelationSetHelper> pHelper = new utl::AccessibleRelationSetHelper();
+
+    const SwTextFrame* pTextFrame = GetFrame()->DynCastTextFrame();
+    OSL_ENSURE( pTextFrame,
+            "<SwAccessibleParagraph::getAccessibleRelationSet()> - missing text frame");
+    if ( pTextFrame )
+    {
+        const SwContentFrame* pPrevContentFrame( pTextFrame->FindPrevCnt() );
+        if ( pPrevContentFrame )
+        {
+            uno::Sequence< uno::Reference<XInterface> > aSequence { GetMap()->GetContext( pPrevContentFrame ) };
+            AccessibleRelation aAccRel( AccessibleRelationType::CONTENT_FLOWS_FROM,
+                                        aSequence );
+            pHelper->AddRelation( aAccRel );
+        }
+
+        const SwContentFrame* pNextContentFrame( pTextFrame->FindNextCnt( true ) );
+        if ( pNextContentFrame )
+        {
+            uno::Sequence< uno::Reference<XInterface> > aSequence { GetMap()->GetContext( pNextContentFrame ) };
+            AccessibleRelation aAccRel( AccessibleRelationType::CONTENT_FLOWS_TO,
+                                        aSequence );
+            pHelper->AddRelation( aAccRel );
+        }
+    }
+
+    return pHelper;
+}
+
+void SAL_CALL SwAccessibleParagraph::grabFocus()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // get cursor shell
+    SwCursorShell *pCursorSh = GetCursorShell();
+    SwPaM *pCursor = GetCursor( false ); // #i27301# - consider new method signature
+    const SwTextFrame *pTextFrame = static_cast<const SwTextFrame*>( GetFrame() );
+
+    if (pCursorSh != nullptr &&
+        ( pCursor == nullptr ||
+          !sw::FrameContainsNode(*pTextFrame, pCursor->GetPoint()->nNode.GetIndex()) ||
+          !pTextFrame->IsInside(pTextFrame->MapModelToViewPos(*pCursor->GetPoint()))))
+    {
+        // create pam for selection
+        SwPosition const aStartPos(pTextFrame->MapViewToModelPos(pTextFrame->GetOffset()));
+        SwPaM aPaM( aStartPos );
+
+        // set PaM at cursor shell
+        Select( aPaM );
+
+    }
+
+    // ->#i13955#
+    vcl::Window * pWindow = GetWindow();
+
+    if (pWindow != nullptr)
+        pWindow->GrabFocus();
+    // <-#i13955#
+}
+
+// #i71385#
+static bool lcl_GetBackgroundColor( Color & rColor,
+                             const SwFrame* pFrame,
+                             SwCursorShell* pCursorSh )
+{
+    const SvxBrushItem* pBackgroundBrush = nullptr;
+    std::optional<Color> xSectionTOXColor;
+    SwRect aDummyRect;
+    drawinglayer::attribute::SdrAllFillAttributesHelperPtr aFillAttributes;
+
+    if ( pFrame &&
+         pFrame->GetBackgroundBrush( aFillAttributes, pBackgroundBrush, xSectionTOXColor, aDummyRect, false, /*bConsiderTextBox=*/false ) )
+    {
+        if ( xSectionTOXColor )
+        {
+            rColor = *xSectionTOXColor;
+            return true;
+        }
+        else
+        {
+            rColor =  pBackgroundBrush->GetColor();
+            return true;
+        }
+    }
+    else if ( pCursorSh )
+    {
+        rColor = pCursorSh->Imp()->GetRetoucheColor();
+        return true;
+    }
+
+    return false;
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getForeground()
+{
+    SolarMutexGuard g;
+
+    Color aBackgroundCol;
+
+    if ( lcl_GetBackgroundColor( aBackgroundCol, GetFrame(), GetCursorShell() ) )
+    {
+        if ( aBackgroundCol.IsDark() )
+        {
+            return sal_Int32(COL_WHITE);
+        }
+        else
+        {
+            return sal_Int32(COL_BLACK);
+        }
+    }
+
+    return SwAccessibleContext::getForeground();
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getBackground()
+{
+    SolarMutexGuard g;
+
+    Color aBackgroundCol;
+
+    if ( lcl_GetBackgroundColor( aBackgroundCol, GetFrame(), GetCursorShell() ) )
+    {
+        return sal_Int32(aBackgroundCol);
+    }
+
+    return SwAccessibleContext::getBackground();
+}
+
+OUString SAL_CALL SwAccessibleParagraph::getImplementationName()
+{
+    return sImplementationName;
+}
+
+sal_Bool SAL_CALL SwAccessibleParagraph::supportsService(
+        const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL SwAccessibleParagraph::getSupportedServiceNames()
+{
+    return { sServiceName, sAccessibleServiceName };
+}
+
+static uno::Sequence< OUString > const & getAttributeNames()
+{
+    static uno::Sequence< OUString > const aNames
+    {
+        // Add the font name to attribute list
+        // sorted list of strings
+        UNO_NAME_CHAR_BACK_COLOR,
+        UNO_NAME_CHAR_COLOR,
+        UNO_NAME_CHAR_CONTOURED,
+        UNO_NAME_CHAR_EMPHASIS,
+        UNO_NAME_CHAR_ESCAPEMENT,
+        UNO_NAME_CHAR_FONT_NAME,
+        UNO_NAME_CHAR_HEIGHT,
+        UNO_NAME_CHAR_POSTURE,
+        UNO_NAME_CHAR_SHADOWED,
+        UNO_NAME_CHAR_STRIKEOUT,
+        UNO_NAME_CHAR_UNDERLINE,
+        UNO_NAME_CHAR_UNDERLINE_COLOR,
+        UNO_NAME_CHAR_WEIGHT,
+    };
+    return aNames;
+}
+
+static uno::Sequence< OUString > const & getSupplementalAttributeNames()
+{
+    static uno::Sequence< OUString > const aNames
+    {
+        // sorted list of strings
+        UNO_NAME_NUMBERING_LEVEL,
+        UNO_NAME_NUMBERING_RULES,
+        UNO_NAME_PARA_ADJUST,
+        UNO_NAME_PARA_BOTTOM_MARGIN,
+        UNO_NAME_PARA_FIRST_LINE_INDENT,
+        UNO_NAME_PARA_LEFT_MARGIN,
+        UNO_NAME_PARA_LINE_SPACING,
+        UNO_NAME_PARA_RIGHT_MARGIN,
+        UNO_NAME_TABSTOPS,
+    };
+    return aNames;
+}
+
+// XInterface
+
+uno::Any SwAccessibleParagraph::queryInterface( const uno::Type& rType )
+{
+    uno::Any aRet;
+    if ( rType == cppu::UnoType<XAccessibleText>::get())
+    {
+        uno::Reference<XAccessibleText> aAccText = static_cast<XAccessibleText *>(*this); // resolve ambiguity
+        aRet <<= aAccText;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleEditableText>::get())
+    {
+        uno::Reference<XAccessibleEditableText> aAccEditText = this;
+        aRet <<= aAccEditText;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleSelection>::get())
+    {
+        uno::Reference<XAccessibleSelection> aAccSel = this;
+        aRet <<= aAccSel;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleHypertext>::get())
+    {
+        uno::Reference<XAccessibleHypertext> aAccHyp = this;
+        aRet <<= aAccHyp;
+    }
+    // #i63870#
+    // add interface com::sun:star:accessibility::XAccessibleTextAttributes
+    else if ( rType == cppu::UnoType<XAccessibleTextAttributes>::get())
+    {
+        uno::Reference<XAccessibleTextAttributes> aAccTextAttr = this;
+        aRet <<= aAccTextAttr;
+    }
+    // #i89175#
+    // add interface com::sun:star:accessibility::XAccessibleTextMarkup
+    else if ( rType == cppu::UnoType<XAccessibleTextMarkup>::get())
+    {
+        uno::Reference<XAccessibleTextMarkup> aAccTextMarkup = this;
+        aRet <<= aAccTextMarkup;
+    }
+    // add interface com::sun:star:accessibility::XAccessibleMultiLineText
+    else if ( rType == cppu::UnoType<XAccessibleMultiLineText>::get())
+    {
+        uno::Reference<XAccessibleMultiLineText> aAccMultiLineText = this;
+        aRet <<= aAccMultiLineText;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleTextSelection>::get())
+    {
+        uno::Reference< css::accessibility::XAccessibleTextSelection > aTextExtension = this;
+        aRet <<= aTextExtension;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleExtendedAttributes>::get())
+    {
+        uno::Reference<XAccessibleExtendedAttributes> xAttr = this;
+        aRet <<= xAttr;
+    }
+    else
+    {
+        aRet = SwAccessibleContext::queryInterface(rType);
+    }
+
+    return aRet;
+}
+
+// XTypeProvider
+uno::Sequence< uno::Type > SAL_CALL SwAccessibleParagraph::getTypes()
+{
+    // #i63870# - add type accessibility::XAccessibleTextAttributes
+    // #i89175# - add type accessibility::XAccessibleTextMarkup and
+    return cppu::OTypeCollection(
+            cppu::UnoType<XAccessibleEditableText>::get(),
+            cppu::UnoType<XAccessibleTextAttributes>::get(),
+            ::cppu::UnoType<XAccessibleSelection>::get(),
+            cppu::UnoType<XAccessibleTextMarkup>::get(),
+            cppu::UnoType<XAccessibleMultiLineText>::get(),
+            cppu::UnoType<XAccessibleHypertext>::get(),
+            SwAccessibleContext::getTypes() ).getTypes();
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleParagraph::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XAccessibleText
+
+sal_Int32 SwAccessibleParagraph::getCaretPosition()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nRet = GetCaretPos();
+    {
+        std::scoped_lock aOldCaretPosGuard( m_Mutex );
+        OSL_ENSURE( nRet == m_nOldCaretPos, "caret pos out of sync" );
+        m_nOldCaretPos = nRet;
+    }
+    if( -1 != nRet )
+    {
+        ::rtl::Reference < SwAccessibleContext > xThis( this );
+        GetMap()->SetCursorContext( xThis );
+    }
+
+    return nRet;
+}
+
+sal_Bool SAL_CALL SwAccessibleParagraph::setCaretPosition( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // parameter checking
+    sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidPosition( nIndex, nLength ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    bool bRet = false;
+
+    // get cursor shell
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell != nullptr )
+    {
+        // create pam for selection
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        TextFrameIndex const nFrameIndex(GetPortionData().GetCoreViewPosition(nIndex));
+        SwPosition aStartPos(pFrame->MapViewToModelPos(nFrameIndex));
+        SwPaM aPaM( aStartPos );
+
+        // set PaM at cursor shell
+        bRet = Select( aPaM );
+    }
+
+    return bRet;
+}
+
+sal_Unicode SwAccessibleParagraph::getCharacter( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    OUString sText( GetString() );
+
+    // return character (if valid)
+    if( !IsValidChar(nIndex, sText.getLength() ) )
+        throw lang::IndexOutOfBoundsException();
+
+    return sText[nIndex];
+}
+
+css::uno::Sequence< css::style::TabStop > SwAccessibleParagraph::GetCurrentTabStop( sal_Int32 nIndex  )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    /*  #i12332# The position after the string needs special treatment.
+        IsValidChar -> IsValidPosition
+    */
+    if( ! (IsValidPosition( nIndex, GetString().getLength() ) ) )
+        throw lang::IndexOutOfBoundsException();
+
+    /*  #i12332#  */
+    bool bBehindText = false;
+    if ( nIndex == GetString().getLength() )
+        bBehindText = true;
+
+    // get model position & prepare GetCharRect() arguments
+    SwCursorMoveState aMoveState;
+    aMoveState.m_bRealHeight = true;
+    aMoveState.m_bRealWidth = true;
+    SwSpecialPos aSpecialPos;
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+
+    /*  #i12332# FillSpecialPos does not accept nIndex ==
+         GetString().getLength(). In that case nPos is set to the
+         length of the string in the core. This way GetCharRect
+         returns the rectangle for a cursor at the end of the
+         paragraph. */
+    const TextFrameIndex nPos = bBehindText
+        ? TextFrameIndex(pFrame->GetText().getLength())
+        : GetPortionData().FillSpecialPos(nIndex, aSpecialPos, aMoveState.m_pSpecialPos );
+
+    // call GetCharRect
+    SwRect aCoreRect;
+    SwPosition aPosition(pFrame->MapViewToModelPos(nPos));
+    GetFrame()->GetCharRect( aCoreRect, aPosition, &aMoveState );
+
+    // already get the caret position
+    css::uno::Sequence< css::style::TabStop > tabs;
+    const sal_Int32 nStrLen = pFrame->GetText().getLength();
+    if( nStrLen > 0 )
+    {
+        SwFrame* pTFrame = const_cast<SwFrame*>(GetFrame());
+        tabs = pTFrame->GetTabStopInfo(aCoreRect.Left());
+    }
+
+    if( tabs.hasElements() )
+    {
+        // translate core coordinates into accessibility coordinates
+        vcl::Window *pWin = GetWindow();
+        if (!pWin)
+        {
+            throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+        }
+
+        SwRect aTmpRect(0, 0, tabs[0].Position, 0);
+
+        tools::Rectangle aScreenRect( GetMap()->CoreToPixel( aTmpRect ));
+        SwRect aFrameLogBounds( GetBounds( *(GetMap()) ) ); // twip rel to doc root
+
+        Point aFramePixPos( GetMap()->CoreToPixel( aFrameLogBounds ).TopLeft() );
+        aScreenRect.Move( -aFramePixPos.X(), -aFramePixPos.Y() );
+
+        tabs.getArray()[0].Position = aScreenRect.GetWidth();
+    }
+
+    return tabs;
+}
+
+namespace {
+
+struct IndexCompare
+{
+    const PropertyValue* pValues;
+    explicit IndexCompare( const PropertyValue* pVals ) : pValues(pVals) {}
+    bool operator() ( sal_Int32 a, sal_Int32 b ) const
+    {
+        return (pValues[a].Name < pValues[b].Name);
+    }
+};
+
+}
+
+OUString SwAccessibleParagraph::GetFieldTypeNameAtIndex(sal_Int32 nIndex)
+{
+    OUString strTypeName;
+    SwFieldMgr aMgr;
+    SwTextField* pTextField = nullptr;
+    sal_Int32 nFieldIndex = GetPortionData().GetFieldIndex(nIndex);
+    if (nFieldIndex >= 0)
+    {
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        sw::MergedAttrIter iter(*pFrame);
+        while (SwTextAttr const*const pHt = iter.NextAttr())
+        {
+            if ((pHt->Which() == RES_TXTATR_FIELD
+                   || pHt->Which() == RES_TXTATR_ANNOTATION
+                   || pHt->Which() == RES_TXTATR_INPUTFIELD)
+                 && (nFieldIndex-- == 0))
+            {
+                pTextField = const_cast<SwTextField*>(
+                            static_txtattr_cast<SwTextField const*>(pHt));
+                break;
+            }
+            else if (pHt->Which() == RES_TXTATR_REFMARK
+                     && (nFieldIndex-- == 0))
+            {
+                strTypeName = "set reference";
+            }
+        }
+    }
+    if (pTextField)
+    {
+        const SwField* pField = pTextField->GetFormatField().GetField();
+        if (pField)
+        {
+            strTypeName = SwFieldType::GetTypeStr(pField->GetTypeId());
+            const SwFieldIds nWhich = pField->GetTyp()->Which();
+            OUString sEntry;
+            sal_uInt32 subType = 0;
+            switch (nWhich)
+            {
+            case SwFieldIds::DocStat:
+                subType = static_cast<const SwDocStatField*>(pField)->GetSubType();
+                break;
+            case SwFieldIds::GetRef:
+                {
+                    switch( pField->GetSubType() )
+                    {
+                    case REF_BOOKMARK:
+                        {
+                            const SwGetRefField* pRefField = dynamic_cast<const SwGetRefField*>(pField);
+                            if ( pRefField && pRefField->IsRefToHeadingCrossRefBookmark() )
+                                sEntry = "Headings";
+                            else if ( pRefField && pRefField->IsRefToNumItemCrossRefBookmark() )
+                                sEntry = "Numbered Paragraphs";
+                            else
+                                sEntry = "Bookmarks";
+                        }
+                        break;
+                    case REF_FOOTNOTE:
+                        sEntry = "Footnotes";
+                        break;
+                    case REF_ENDNOTE:
+                        sEntry = "Endnotes";
+                        break;
+                    case REF_SETREFATTR:
+                        sEntry = "Insert Reference";
+                        break;
+                    case REF_SEQUENCEFLD:
+                        sEntry = static_cast<const SwGetRefField*>(pField)->GetSetRefName();
+                        break;
+                    }
+                    //Get format string
+                    strTypeName = sEntry;
+                    // <pField->GetFormat() >= 0> is always true as <pField->GetFormat()> is unsigned
+//                    if (pField->GetFormat() >= 0)
+                    {
+                        sEntry = aMgr.GetFormatStr( pField->GetTypeId(), pField->GetFormat() );
+                        if (sEntry.getLength() > 0)
+                        {
+                            strTypeName += "-" + sEntry;
+                        }
+                    }
+                }
+                break;
+            case SwFieldIds::DateTime:
+                subType = static_cast<const SwDateTimeField*>(pField)->GetSubType();
+                break;
+            case SwFieldIds::JumpEdit:
+                {
+                    const sal_uInt32 nFormat= pField->GetFormat();
+                    const sal_uInt16 nSize = aMgr.GetFormatCount(pField->GetTypeId(), false);
+                    if (nFormat < nSize)
+                    {
+                        sEntry = aMgr.GetFormatStr(pField->GetTypeId(), nFormat);
+                        if (sEntry.getLength() > 0)
+                        {
+                            strTypeName += "-" + sEntry;
+                        }
+                    }
+                }
+                break;
+            case SwFieldIds::ExtUser:
+                subType = static_cast<const SwExtUserField*>(pField)->GetSubType();
+                break;
+            case SwFieldIds::HiddenText:
+            case SwFieldIds::SetExp:
+                {
+                    sEntry = pField->GetTyp()->GetName();
+                    if (sEntry.getLength() > 0)
+                    {
+                        strTypeName += "-" + sEntry;
+                    }
+                }
+                break;
+            case SwFieldIds::DocInfo:
+                subType = pField->GetSubType();
+                subType &= 0x00ff;
+                break;
+            case SwFieldIds::RefPageSet:
+                {
+                    const SwRefPageSetField* pRPld = static_cast<const SwRefPageSetField*>(pField);
+                    bool bOn = pRPld->IsOn();
+                    strTypeName += "-";
+                    if (bOn)
+                        strTypeName += "on";
+                    else
+                        strTypeName += "off";
+                }
+                break;
+            case SwFieldIds::Author:
+                {
+                    strTypeName += "-" + aMgr.GetFormatStr(pField->GetTypeId(), pField->GetFormat() & 0xff);
+                }
+                break;
+            default: break;
+            }
+            if (subType > 0 || nWhich == SwFieldIds::DocInfo || nWhich == SwFieldIds::ExtUser || nWhich == SwFieldIds::DocStat)
+            {
+                std::vector<OUString> aLst;
+                aMgr.GetSubTypes(pField->GetTypeId(), aLst);
+                if (subType < aLst.size())
+                    sEntry = aLst[subType];
+                if (sEntry.getLength() > 0)
+                {
+                    if (nWhich == SwFieldIds::DocInfo)
+                    {
+                        strTypeName = sEntry;
+                        sal_uInt16 nSize = aMgr.GetFormatCount(pField->GetTypeId(), false);
+                        const sal_uInt16 nExSub = pField->GetSubType() & 0xff00;
+                        if (nSize > 0 && nExSub > 0)
+                        {
+                            //Get extra subtype string
+                            strTypeName += "-";
+                            sEntry = aMgr.GetFormatStr(pField->GetTypeId(), nExSub/0x0100-1);
+                            strTypeName += sEntry;
+                        }
+                    }
+                    else
+                    {
+                        strTypeName += "-" + sEntry;
+                    }
+                }
+            }
+        }
+    }
+    return strTypeName;
+}
+
+// #i63870# - re-implement method on behalf of methods
+// <_getDefaultAttributesImpl(..)> and <_getRunAttributesImpl(..)>
+uno::Sequence<PropertyValue> SwAccessibleParagraph::getCharacterAttributes(
+    sal_Int32 nIndex,
+    const uno::Sequence< OUString >& aRequestedAttributes )
+{
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const OUString& rText = GetString();
+
+    if (!IsValidPosition(nIndex, rText.getLength()))
+        throw lang::IndexOutOfBoundsException();
+
+    bool bSupplementalMode = false;
+    uno::Sequence< OUString > aNames = aRequestedAttributes;
+    if (!aNames.hasElements())
+    {
+        bSupplementalMode = true;
+        aNames = getAttributeNames();
+    }
+    // retrieve default character attributes
+    tAccParaPropValMap aDefAttrSeq;
+    _getDefaultAttributesImpl( aNames, aDefAttrSeq, true );
+
+    // retrieved run character attributes
+    tAccParaPropValMap aRunAttrSeq;
+    _getRunAttributesImpl( nIndex, aNames, aRunAttrSeq );
+
+    // merge default and run attributes
+    std::vector< PropertyValue > aValues( aDefAttrSeq.size() );
+    sal_Int32 i = 0;
+    for ( const auto& rDefEntry : aDefAttrSeq )
+    {
+        tAccParaPropValMap::const_iterator aRunIter =
+                                        aRunAttrSeq.find( rDefEntry.first );
+        if ( aRunIter != aRunAttrSeq.end() )
+        {
+            aValues[i] = aRunIter->second;
+        }
+        else
+        {
+            aValues[i] = rDefEntry.second;
+        }
+        ++i;
+    }
+    if( bSupplementalMode )
+    {
+        uno::Sequence< OUString > aSupplementalNames = aRequestedAttributes;
+        if (!aSupplementalNames.hasElements())
+            aSupplementalNames = getSupplementalAttributeNames();
+
+        tAccParaPropValMap aSupplementalAttrSeq;
+        _getSupplementalAttributesImpl( aSupplementalNames, aSupplementalAttrSeq );
+
+        aValues.resize( aValues.size() + aSupplementalAttrSeq.size() );
+
+        for ( const auto& rSupplementalEntry : aSupplementalAttrSeq )
+        {
+            aValues[i] = rSupplementalEntry.second;
+            ++i;
+        }
+
+        _correctValues( nIndex, aValues );
+
+        aValues.emplace_back();
+
+        OUString strTypeName = GetFieldTypeNameAtIndex(nIndex);
+        if (!strTypeName.isEmpty())
+        {
+            aValues.emplace_back();
+            PropertyValue& rValueFT = aValues.back();
+            rValueFT.Name = "FieldType";
+            rValueFT.Value <<= strTypeName.toAsciiLowerCase();
+            rValueFT.Handle = -1;
+            rValueFT.State = PropertyState_DIRECT_VALUE;
+        }
+
+        //sort property values
+        // build sorted index array
+        sal_Int32 nLength = aValues.size();
+        std::vector<sal_Int32> aIndices;
+        aIndices.reserve(nLength);
+        for (i = 0; i < nLength; ++i)
+            aIndices.push_back(i);
+        std::sort(aIndices.begin(), aIndices.end(), IndexCompare(aValues.data()));
+        // create sorted sequences according to index array
+        uno::Sequence<PropertyValue> aNewValues( nLength );
+        PropertyValue* pNewValues = aNewValues.getArray();
+        for (i = 0; i < nLength; ++i)
+        {
+            pNewValues[i] = aValues[aIndices[i]];
+        }
+        return aNewValues;
+    }
+
+    return comphelper::containerToSequence(aValues);
+}
+
+static void SetPutRecursive(SfxItemSet &targetSet, const SfxItemSet &sourceSet)
+{
+    const SfxItemSet *const pParentSet = sourceSet.GetParent();
+    if (pParentSet)
+        SetPutRecursive(targetSet, *pParentSet);
+    targetSet.Put(sourceSet);
+}
+
+// #i63870#
+void SwAccessibleParagraph::_getDefaultAttributesImpl(
+        const uno::Sequence< OUString >& aRequestedAttributes,
+        tAccParaPropValMap& rDefAttrSeq,
+        const bool bOnlyCharAttrs )
+{
+    // retrieve default attributes
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    const SwTextNode *const pTextNode(pFrame->GetTextNodeForParaProps());
+    std::optional<SfxItemSet> pSet;
+    if ( !bOnlyCharAttrs )
+    {
+        pSet.emplace( const_cast<SwAttrPool&>(pTextNode->GetDoc().GetAttrPool()),
+                               svl::Items<RES_CHRATR_BEGIN, RES_CHRATR_END - 1,
+                               RES_PARATR_BEGIN, RES_PARATR_END - 1,
+                               RES_FRMATR_BEGIN, RES_FRMATR_END - 1> );
+    }
+    else
+    {
+        pSet.emplace( const_cast<SwAttrPool&>(pTextNode->GetDoc().GetAttrPool()),
+                               svl::Items<RES_CHRATR_BEGIN, RES_CHRATR_END - 1> );
+    }
+    // #i82637# - From the perspective of the a11y API the default character
+    // attributes are the character attributes, which are set at the paragraph style
+    // of the paragraph. The character attributes set at the automatic paragraph
+    // style of the paragraph are treated as run attributes.
+    //    pTextNode->SwContentNode::GetAttr( *pSet );
+    // get default paragraph attributes, if needed, and merge these into <pSet>
+    if ( !bOnlyCharAttrs )
+    {
+        SfxItemSetFixed<RES_PARATR_BEGIN, RES_PARATR_END - 1,
+                        RES_FRMATR_BEGIN, RES_FRMATR_END - 1>
+             aParaSet( const_cast<SwAttrPool&>(pTextNode->GetDoc().GetAttrPool()) );
+        pTextNode->SwContentNode::GetAttr( aParaSet );
+        pSet->Put( aParaSet );
+    }
+    // get default character attributes and merge these into <pSet>
+    OSL_ENSURE( pTextNode->GetTextColl(),
+            "<SwAccessibleParagraph::_getDefaultAttributesImpl(..)> - missing paragraph style. Serious defect!" );
+    if ( pTextNode->GetTextColl() )
+    {
+        SfxItemSetFixed<RES_CHRATR_BEGIN, RES_CHRATR_END - 1>
+            aCharSet( const_cast<SwAttrPool&>(pTextNode->GetDoc().GetAttrPool()) );
+        SetPutRecursive( aCharSet, pTextNode->GetTextColl()->GetAttrSet() );
+        pSet->Put( aCharSet );
+    }
+
+    // build-up sequence containing the run attributes <rDefAttrSeq>
+    tAccParaPropValMap aDefAttrSeq;
+    {
+        const SfxItemPropertyMap& rPropMap =
+                    aSwMapProvider.GetPropertySet( PROPERTY_MAP_TEXT_CURSOR )->getPropertyMap();
+        for ( const auto pEntry : rPropMap.getPropertyEntries() )
+        {
+            const SfxPoolItem* pItem = pSet->GetItem( pEntry->nWID );
+            if ( pItem )
+            {
+                uno::Any aVal;
+                pItem->QueryValue( aVal, pEntry->nMemberId );
+
+                PropertyValue rPropVal;
+                rPropVal.Name = pEntry->aName;
+                rPropVal.Value = aVal;
+                rPropVal.Handle = -1;
+                rPropVal.State = beans::PropertyState_DEFAULT_VALUE;
+
+                aDefAttrSeq[rPropVal.Name] = rPropVal;
+            }
+        }
+
+        // #i72800#
+        // add property value entry for the paragraph style
+        if ( !bOnlyCharAttrs && pTextNode->GetTextColl() )
+        {
+            if ( aDefAttrSeq.find( UNO_NAME_PARA_STYLE_NAME ) == aDefAttrSeq.end() )
+            {
+                PropertyValue rPropVal;
+                rPropVal.Name = UNO_NAME_PARA_STYLE_NAME;
+                uno::Any aVal( uno::Any( pTextNode->GetTextColl()->GetName() ) );
+                rPropVal.Value = aVal;
+                rPropVal.Handle = -1;
+                rPropVal.State = beans::PropertyState_DEFAULT_VALUE;
+
+                aDefAttrSeq[rPropVal.Name] = rPropVal;
+            }
+        }
+
+        // #i73371#
+        // resolve value text::WritingMode2::PAGE of property value entry WritingMode
+        if ( !bOnlyCharAttrs && GetFrame() )
+        {
+            tAccParaPropValMap::iterator aIter = aDefAttrSeq.find( UNO_NAME_WRITING_MODE );
+            if ( aIter != aDefAttrSeq.end() )
+            {
+                PropertyValue rPropVal( aIter->second );
+                sal_Int16 nVal = rPropVal.Value.get<sal_Int16>();
+                if ( nVal == text::WritingMode2::PAGE )
+                {
+                    const SwFrame* pUpperFrame( GetFrame()->GetUpper() );
+                    while ( pUpperFrame )
+                    {
+                        if ( pUpperFrame->GetType() &
+                               ( SwFrameType::Page | SwFrameType::Fly | SwFrameType::Section | SwFrameType::Tab | SwFrameType::Cell ) )
+                        {
+                            if ( pUpperFrame->IsVertical() )
+                            {
+                                nVal = text::WritingMode2::TB_RL;
+                            }
+                            else if ( pUpperFrame->IsRightToLeft() )
+                            {
+                                nVal = text::WritingMode2::RL_TB;
+                            }
+                            else
+                            {
+                                nVal = text::WritingMode2::LR_TB;
+                            }
+                            rPropVal.Value <<= nVal;
+                            aDefAttrSeq[rPropVal.Name] = rPropVal;
+                            break;
+                        }
+
+                        if ( pUpperFrame->IsFlyFrame() )
+                        {
+                            pUpperFrame = static_cast<const SwFlyFrame*>(pUpperFrame)->GetAnchorFrame();
+                        }
+                        else
+                        {
+                            pUpperFrame = pUpperFrame->GetUpper();
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    if ( !aRequestedAttributes.hasElements() )
+    {
+        rDefAttrSeq = aDefAttrSeq;
+    }
+    else
+    {
+        for( const OUString& rReqAttr : aRequestedAttributes )
+        {
+            tAccParaPropValMap::const_iterator const aIter = aDefAttrSeq.find( rReqAttr );
+            if ( aIter != aDefAttrSeq.end() )
+            {
+                rDefAttrSeq[ aIter->first ] = aIter->second;
+            }
+        }
+    }
+}
+
+uno::Sequence< PropertyValue > SwAccessibleParagraph::getDefaultAttributes(
+        const uno::Sequence< OUString >& aRequestedAttributes )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    tAccParaPropValMap aDefAttrSeq;
+    _getDefaultAttributesImpl( aRequestedAttributes, aDefAttrSeq );
+
+    // #i92233#
+    constexpr OUStringLiteral sMMToPixelRatio = u"MMToPixelRatio";
+    bool bProvideMMToPixelRatio( !aRequestedAttributes.hasElements() ||
+                                 (comphelper::findValue(aRequestedAttributes, sMMToPixelRatio) != -1) );
+
+    uno::Sequence< PropertyValue > aValues( aDefAttrSeq.size() +
+                                            ( bProvideMMToPixelRatio ? 1 : 0 ) );
+    auto pValues = aValues.getArray();
+    std::transform(aDefAttrSeq.begin(), aDefAttrSeq.end(), pValues,
+        [](const auto& rEntry) -> PropertyValue { return rEntry.second; });
+
+    // #i92233#
+    if ( bProvideMMToPixelRatio )
+    {
+        PropertyValue rPropVal;
+        rPropVal.Name = sMMToPixelRatio;
+        const Size a100thMMSize( 1000, 1000 );
+        const Size aPixelSize = GetMap()->LogicToPixel( a100thMMSize );
+        const float fRatio = (static_cast<float>(a100thMMSize.Width())/100)/aPixelSize.Width();
+        rPropVal.Value <<= fRatio;
+        rPropVal.Handle = -1;
+        rPropVal.State = beans::PropertyState_DEFAULT_VALUE;
+        pValues[ aValues.getLength() - 1 ] = rPropVal;
+    }
+
+    return aValues;
+}
+
+void SwAccessibleParagraph::_getRunAttributesImpl(
+        const sal_Int32 nIndex,
+        const uno::Sequence< OUString >& aRequestedAttributes,
+        tAccParaPropValMap& rRunAttrSeq )
+{
+    // create PaM for character at position <nIndex>
+    std::optional<SwPaM> pPaM;
+    const TextFrameIndex nCorePos(GetPortionData().GetCoreViewPosition(nIndex));
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    SwPosition const aModelPos(pFrame->MapViewToModelPos(nCorePos));
+    SwTextNode *const pTextNode(aModelPos.nNode.GetNode().GetTextNode());
+    {
+        SwPosition const aEndPos(*pTextNode,
+            aModelPos.nContent.GetIndex() == pTextNode->Len()
+                ? pTextNode->Len() // ???
+                : aModelPos.nContent.GetIndex() + 1);
+        pPaM.emplace(aModelPos, aEndPos);
+    }
+
+    // retrieve character attributes for the created PaM <pPaM>
+    SfxItemSetFixed<RES_CHRATR_BEGIN, RES_CHRATR_END -1> aSet( pPaM->GetDoc().GetAttrPool() );
+    // #i82637#
+    // From the perspective of the a11y API the character attributes, which
+    // are set at the automatic paragraph style of the paragraph, are treated
+    // as run attributes.
+    //    SwXTextCursor::GetCursorAttr( *pPaM, aSet, sal_True, sal_True );
+    // get character attributes from automatic paragraph style and merge these into <aSet>
+    {
+        if ( pTextNode->HasSwAttrSet() )
+        {
+            SfxItemSetFixed<RES_CHRATR_BEGIN, RES_CHRATR_END -1> aAutomaticParaStyleCharAttrs( pPaM->GetDoc().GetAttrPool());
+            aAutomaticParaStyleCharAttrs.Put( *(pTextNode->GetpSwAttrSet()), false );
+            aSet.Put( aAutomaticParaStyleCharAttrs );
+        }
+    }
+    // get character attributes at <pPaM> and merge these into <aSet>
+    {
+        SfxItemSetFixed<RES_CHRATR_BEGIN, RES_CHRATR_END -1> aCharAttrsAtPaM( pPaM->GetDoc().GetAttrPool() );
+        SwUnoCursorHelper::GetCursorAttr(*pPaM, aCharAttrsAtPaM, true);
+        aSet.Put( aCharAttrsAtPaM );
+    }
+
+    // build-up sequence containing the run attributes <rRunAttrSeq>
+    {
+        tAccParaPropValMap aRunAttrSeq;
+        {
+            tAccParaPropValMap aDefAttrSeq;
+            uno::Sequence< OUString > aDummy;
+            _getDefaultAttributesImpl( aDummy, aDefAttrSeq, true ); // #i82637#
+
+            const SfxItemPropertyMap& rPropMap =
+                    aSwMapProvider.GetPropertySet( PROPERTY_MAP_TEXT_CURSOR )->getPropertyMap();
+            for ( const auto pEntry : rPropMap.getPropertyEntries() )
+            {
+                const SfxPoolItem* pItem( nullptr );
+                // #i82637# - Found character attributes, whose value equals the value of
+                // the corresponding default character attributes, are excluded.
+                if ( aSet.GetItemState( pEntry->nWID, true, &pItem ) == SfxItemState::SET )
+                {
+                    uno::Any aVal;
+                    pItem->QueryValue( aVal, pEntry->nMemberId );
+
+                    PropertyValue rPropVal;
+                    rPropVal.Name = pEntry->aName;
+                    rPropVal.Value = aVal;
+                    rPropVal.Handle = -1;
+                    rPropVal.State = PropertyState_DIRECT_VALUE;
+
+                    tAccParaPropValMap::const_iterator aDefIter =
+                                            aDefAttrSeq.find( rPropVal.Name );
+                    if ( aDefIter == aDefAttrSeq.end() ||
+                         rPropVal.Value != aDefIter->second.Value )
+                    {
+                        aRunAttrSeq[rPropVal.Name] = rPropVal;
+                    }
+                }
+            }
+        }
+
+        if ( !aRequestedAttributes.hasElements() )
+        {
+            rRunAttrSeq = aRunAttrSeq;
+        }
+        else
+        {
+            for( const OUString& rReqAttr : aRequestedAttributes )
+            {
+                tAccParaPropValMap::iterator aIter = aRunAttrSeq.find( rReqAttr );
+                if ( aIter != aRunAttrSeq.end() )
+                {
+                    rRunAttrSeq[ (*aIter).first ] = (*aIter).second;
+                }
+            }
+        }
+    }
+}
+
+uno::Sequence< PropertyValue > SwAccessibleParagraph::getRunAttributes(
+        sal_Int32 nIndex,
+        const uno::Sequence< OUString >& aRequestedAttributes )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    {
+        const OUString& rText = GetString();
+        if (!IsValidPosition(nIndex, rText.getLength()))
+        {
+            throw lang::IndexOutOfBoundsException();
+        }
+    }
+
+    tAccParaPropValMap aRunAttrSeq;
+    _getRunAttributesImpl( nIndex, aRequestedAttributes, aRunAttrSeq );
+
+    return comphelper::mapValuesToSequence( aRunAttrSeq );
+}
+
+void SwAccessibleParagraph::_getSupplementalAttributesImpl(
+        const uno::Sequence< OUString >& aRequestedAttributes,
+        tAccParaPropValMap& rSupplementalAttrSeq )
+{
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    const SwTextNode *const pTextNode(pFrame->GetTextNodeForParaProps());
+    SfxItemSetFixed<
+                RES_PARATR_LINESPACING, RES_PARATR_ADJUST,
+                RES_PARATR_TABSTOP, RES_PARATR_TABSTOP,
+                RES_PARATR_NUMRULE, RES_PARATR_NUMRULE,
+                RES_PARATR_LIST_BEGIN, RES_PARATR_LIST_END - 1,
+                RES_LR_SPACE, RES_UL_SPACE>
+        aSet( const_cast<SwAttrPool&>(pTextNode->GetDoc().GetAttrPool()) );
+
+    if ( pTextNode->HasBullet() || pTextNode->HasNumber() )
+    {
+        aSet.Put( pTextNode->GetAttr(RES_PARATR_LIST_LEVEL) );
+    }
+    aSet.Put( pTextNode->SwContentNode::GetAttr(RES_UL_SPACE) );
+    aSet.Put( pTextNode->SwContentNode::GetAttr(RES_LR_SPACE) );
+    aSet.Put( pTextNode->SwContentNode::GetAttr(RES_PARATR_ADJUST) );
+
+    tAccParaPropValMap aSupplementalAttrSeq;
+    {
+        const SfxItemPropertyMapEntry* pPropMap(
+                aSwMapProvider.GetPropertyMapEntries( PROPERTY_MAP_ACCESSIBILITY_TEXT_ATTRIBUTE ) );
+        while ( !pPropMap->aName.isEmpty() )
+        {
+            const SfxPoolItem* pItem = aSet.GetItem( pPropMap->nWID );
+            if ( pItem )
+            {
+                uno::Any aVal;
+                pItem->QueryValue( aVal, pPropMap->nMemberId );
+
+                PropertyValue rPropVal;
+                rPropVal.Name = pPropMap->aName;
+                rPropVal.Value = aVal;
+                rPropVal.Handle = -1;
+                rPropVal.State = beans::PropertyState_DEFAULT_VALUE;
+
+                aSupplementalAttrSeq[rPropVal.Name] = rPropVal;
+            }
+
+            ++pPropMap;
+        }
+    }
+
+    for( const OUString& rSupplementalAttr : aRequestedAttributes )
+    {
+        tAccParaPropValMap::const_iterator const aIter = aSupplementalAttrSeq.find( rSupplementalAttr );
+        if ( aIter != aSupplementalAttrSeq.end() )
+        {
+            rSupplementalAttrSeq[ aIter->first ] = aIter->second;
+        }
+    }
+}
+
+void SwAccessibleParagraph::_correctValues( const sal_Int32 nIndex,
+                                            std::vector< PropertyValue >& rValues)
+{
+    PropertyValue ChangeAttr, ChangeAttrColor;
+
+    const SwRangeRedline* pRedline = GetRedlineAtIndex();
+    if ( pRedline )
+    {
+
+        const SwModuleOptions *pOpt = SW_MOD()->GetModuleConfig();
+        AuthorCharAttr aChangeAttr;
+        if ( pOpt )
+        {
+            switch( pRedline->GetType())
+            {
+            case RedlineType::Insert:
+                aChangeAttr = pOpt->GetInsertAuthorAttr();
+                break;
+            case RedlineType::Delete:
+                aChangeAttr = pOpt->GetDeletedAuthorAttr();
+                break;
+            case RedlineType::Format:
+                aChangeAttr = pOpt->GetFormatAuthorAttr();
+                break;
+            default: break;
+            }
+        }
+        switch( aChangeAttr.m_nItemId )
+        {
+        case SID_ATTR_CHAR_WEIGHT:
+            ChangeAttr.Name = UNO_NAME_CHAR_WEIGHT;
+            ChangeAttr.Value <<= awt::FontWeight::BOLD;
+            break;
+        case SID_ATTR_CHAR_POSTURE:
+            ChangeAttr.Name = UNO_NAME_CHAR_POSTURE;
+            ChangeAttr.Value <<= awt::FontSlant_ITALIC; //char posture
+            break;
+        case SID_ATTR_CHAR_STRIKEOUT:
+            ChangeAttr.Name = UNO_NAME_CHAR_STRIKEOUT;
+            ChangeAttr.Value <<= awt::FontStrikeout::SINGLE; //char strikeout
+            break;
+        case SID_ATTR_CHAR_UNDERLINE:
+            ChangeAttr.Name = UNO_NAME_CHAR_UNDERLINE;
+            ChangeAttr.Value <<= aChangeAttr.m_nAttr; //underline line
+            break;
+        }
+        if( aChangeAttr.m_nColor != COL_NONE_COLOR )
+        {
+            if( aChangeAttr.m_nItemId == SID_ATTR_BRUSH )
+            {
+                ChangeAttrColor.Name = UNO_NAME_CHAR_BACK_COLOR;
+                if( aChangeAttr.m_nColor == COL_TRANSPARENT )//char backcolor
+                    ChangeAttrColor.Value <<= COL_BLUE;
+                else
+                    ChangeAttrColor.Value <<= aChangeAttr.m_nColor;
+            }
+            else
+            {
+                ChangeAttrColor.Name = UNO_NAME_CHAR_COLOR;
+                if( aChangeAttr.m_nColor == COL_TRANSPARENT )//char color
+                    ChangeAttrColor.Value <<= COL_BLUE;
+                else
+                    ChangeAttrColor.Value <<= aChangeAttr.m_nColor;
+            }
+        }
+    }
+
+    // sw_redlinehide: this function only needs SwWrongList for 1 character,
+    // and the end is excluded by InWrongWord(),
+    // so it ought to work to just pick the wrong-list/node that contains
+    // the character following the given nIndex
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+    TextFrameIndex const nCorePos(GetPortionData().GetCoreViewPosition(nIndex));
+    std::pair<SwTextNode*, sal_Int32> pos(pFrame->MapViewToModel(nCorePos));
+    if (pos.first->Len() == pos.second
+        && nCorePos != TextFrameIndex(pFrame->GetText().getLength()))
+    {
+        pos = pFrame->MapViewToModel(nCorePos + TextFrameIndex(1)); // try this one instead
+        assert(pos.first->Len() != pos.second);
+    }
+    const SwTextNode *const pTextNode(pos.first);
+
+    sal_Int32 nValues = rValues.size();
+    for (sal_Int32 i = 0;  i < nValues;  ++i)
+    {
+        PropertyValue& rValue = rValues[i];
+
+        if (rValue.Name == ChangeAttr.Name )
+        {
+            rValue.Value = ChangeAttr.Value;
+            continue;
+        }
+
+        if (rValue.Name == ChangeAttrColor.Name )
+        {
+            rValue.Value = ChangeAttrColor.Value;
+            continue;
+        }
+
+        //back color
+        if (rValue.Name == UNO_NAME_CHAR_BACK_COLOR)
+        {
+            uno::Any &anyChar = rValue.Value;
+            sal_uInt32 crBack = static_cast<sal_uInt32>( reinterpret_cast<sal_uIntPtr>(anyChar.pReserved));
+            if (COL_AUTO == Color(ColorTransparency, crBack))
+            {
+                uno::Reference<XAccessibleComponent> xComponent(this);
+                if (xComponent.is())
+                {
+                    crBack = static_cast<sal_uInt32>(xComponent->getBackground());
+                }
+                rValue.Value <<= crBack;
+            }
+            continue;
+        }
+
+        //char color
+        if (rValue.Name == UNO_NAME_CHAR_COLOR)
+        {
+            if( GetPortionData().IsInGrayPortion( nIndex ) )
+                 rValue.Value <<= SwViewOption::GetFieldShadingsColor();
+            uno::Any &anyChar = rValue.Value;
+            sal_uInt32 crChar = static_cast<sal_uInt32>( reinterpret_cast<sal_uIntPtr>(anyChar.pReserved));
+
+            if( COL_AUTO == Color(ColorTransparency, crChar) )
+            {
+                uno::Reference<XAccessibleComponent> xComponent(this);
+                if (xComponent.is())
+                {
+                    Color cr(ColorTransparency, xComponent->getBackground());
+                    crChar = sal_uInt32(cr.IsDark() ? COL_WHITE : COL_BLACK);
+                    rValue.Value <<= crChar;
+                }
+            }
+            continue;
+        }
+
+        // UnderLine
+        if (rValue.Name == UNO_NAME_CHAR_UNDERLINE)
+        {
+            //misspelled word
+            SwCursorShell* pCursorShell = GetCursorShell();
+            if( pCursorShell != nullptr && pCursorShell->GetViewOptions() && pCursorShell->GetViewOptions()->IsOnlineSpell())
+            {
+                const SwWrongList* pWrongList = pTextNode->GetWrong();
+                if( nullptr != pWrongList )
+                {
+                    sal_Int32 nBegin = pos.second;
+                    sal_Int32 nLen = 1;
+                    if (pWrongList->InWrongWord(nBegin, nLen) && !pTextNode->IsSymbolAt(nBegin))
+                    {
+                        rValue.Value <<= sal_uInt16(LINESTYLE_WAVE);
+                    }
+                }
+            }
+            continue;
+        }
+
+        // UnderLineColor
+        if (rValue.Name == UNO_NAME_CHAR_UNDERLINE_COLOR)
+        {
+            //misspelled word
+            SwCursorShell* pCursorShell = GetCursorShell();
+            if( pCursorShell != nullptr && pCursorShell->GetViewOptions() && pCursorShell->GetViewOptions()->IsOnlineSpell())
+            {
+                const SwWrongList* pWrongList = pTextNode->GetWrong();
+                if( nullptr != pWrongList )
+                {
+                    sal_Int32 nBegin = pos.second;
+                    sal_Int32 nLen = 1;
+                    if (pWrongList->InWrongWord(nBegin, nLen) && !pTextNode->IsSymbolAt(nBegin))
+                    {
+                        rValue.Value <<= sal_Int32(0x00ff0000);
+                        continue;
+                    }
+                }
+            }
+
+            uno::Any &anyChar = rValue.Value;
+            sal_uInt32 crUnderline = static_cast<sal_uInt32>( reinterpret_cast<sal_uIntPtr>(anyChar.pReserved));
+            if ( COL_AUTO == Color(ColorTransparency, crUnderline) )
+            {
+                uno::Reference<XAccessibleComponent> xComponent(this);
+                if (xComponent.is())
+                {
+                    Color cr(ColorTransparency, xComponent->getBackground());
+                    crUnderline = sal_uInt32(cr.IsDark() ? COL_WHITE : COL_BLACK);
+                    rValue.Value <<= crUnderline;
+                }
+            }
+
+            continue;
+        }
+
+        //tab stop
+        if (rValue.Name == UNO_NAME_TABSTOPS)
+        {
+            css::uno::Sequence< css::style::TabStop > tabs = GetCurrentTabStop( nIndex );
+            if( !tabs.hasElements() )
+            {
+                css::style::TabStop ts;
+                css::awt::Rectangle rc0 = getCharacterBounds(0);
+                css::awt::Rectangle rc1 = getCharacterBounds(nIndex);
+                if( rc1.X - rc0.X >= 48 )
+                    ts.Position = (rc1.X - rc0.X) - (rc1.X - rc0.X - 48)% 47 + 47;
+                else
+                    ts.Position = 48;
+                ts.DecimalChar = ' ';
+                ts.FillChar = ' ';
+                ts.Alignment = css::style::TabAlign_LEFT;
+                tabs = { ts };
+            }
+            rValue.Value <<= tabs;
+            continue;
+        }
+
+        //footnote & endnote
+        if (rValue.Name == UNO_NAME_CHAR_ESCAPEMENT)
+        {
+            if ( GetPortionData().IsIndexInFootnode(nIndex) )
+            {
+                rValue.Value <<= sal_Int32(101);
+            }
+            continue;
+        }
+    }
+}
+
+awt::Rectangle SwAccessibleParagraph::getCharacterBounds(
+    sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // #i12332# The position after the string needs special treatment.
+    // IsValidChar -> IsValidPosition
+    if( ! (IsValidPosition( nIndex, GetString().getLength() ) ) )
+        throw lang::IndexOutOfBoundsException();
+
+    // #i12332#
+    bool bBehindText = false;
+    if ( nIndex == GetString().getLength() )
+        bBehindText = true;
+
+    // get model position & prepare GetCharRect() arguments
+    SwCursorMoveState aMoveState;
+    aMoveState.m_bRealHeight = true;
+    aMoveState.m_bRealWidth = true;
+    SwSpecialPos aSpecialPos;
+    SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+
+    /**  #i12332# FillSpecialPos does not accept nIndex ==
+         GetString().getLength(). In that case nPos is set to the
+         length of the string in the core. This way GetCharRect
+         returns the rectangle for a cursor at the end of the
+         paragraph. */
+    const TextFrameIndex nPos = bBehindText
+        ? TextFrameIndex(pFrame->GetText().getLength())
+        : GetPortionData().FillSpecialPos(nIndex, aSpecialPos, aMoveState.m_pSpecialPos );
+
+    // call GetCharRect
+    SwRect aCoreRect;
+    SwPosition aPosition(pFrame->MapViewToModelPos(nPos));
+    GetFrame()->GetCharRect( aCoreRect, aPosition, &aMoveState );
+
+    // translate core coordinates into accessibility coordinates
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+
+    tools::Rectangle aScreenRect( GetMap()->CoreToPixel( aCoreRect ));
+    SwRect aFrameLogBounds( GetBounds( *(GetMap()) ) ); // twip rel to doc root
+
+    Point aFramePixPos( GetMap()->CoreToPixel( aFrameLogBounds ).TopLeft() );
+    aScreenRect.Move( -aFramePixPos.getX(), -aFramePixPos.getY() );
+
+    // convert into AWT Rectangle
+    return awt::Rectangle(
+        aScreenRect.Left(), aScreenRect.Top(),
+        aScreenRect.GetWidth(), aScreenRect.GetHeight() );
+}
+
+sal_Int32 SwAccessibleParagraph::getCharacterCount()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return GetString().getLength();
+}
+
+sal_Int32 SwAccessibleParagraph::getIndexAtPoint( const awt::Point& rPoint )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // construct Point (translate into layout coordinates)
+    vcl::Window *pWin = GetWindow();
+    if (!pWin)
+    {
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+    }
+    Point aPoint( rPoint.X, rPoint.Y );
+    SwRect aLogBounds( GetBounds( *(GetMap()), GetFrame() ) ); // twip rel to doc root
+    Point aPixPos( GetMap()->CoreToPixel( aLogBounds ).TopLeft() );
+    aPoint.setX(aPoint.getX() + aPixPos.getX());
+    aPoint.setY(aPoint.getY() + aPixPos.getY());
+    Point aCorePoint( GetMap()->PixelToCore( aPoint ) );
+    if( !aLogBounds.Contains( aCorePoint ) )
+    {
+        // #i12332# rPoint is may also be in rectangle returned by
+        // getCharacterBounds(getCharacterCount()
+
+        awt::Rectangle aRectEndPos =
+            getCharacterBounds(getCharacterCount());
+
+        if (rPoint.X - aRectEndPos.X >= 0 &&
+            rPoint.X - aRectEndPos.X < aRectEndPos.Width &&
+            rPoint.Y - aRectEndPos.Y >= 0 &&
+            rPoint.Y - aRectEndPos.Y < aRectEndPos.Height)
+            return getCharacterCount();
+
+        return -1;
+    }
+
+    // ask core for position
+    OSL_ENSURE( GetFrame() != nullptr, "The text frame has vanished!" );
+    OSL_ENSURE( GetFrame()->IsTextFrame(), "The text frame has mutated!" );
+    const SwTextFrame* pFrame = static_cast<const SwTextFrame*>( GetFrame() );
+    // construct SwPosition (where GetModelPositionForViewPoint() will put the result into)
+    SwTextNode* pNode = const_cast<SwTextNode*>(pFrame->GetTextNodeFirst());
+    SwPosition aPos(*pNode, 0);
+    SwCursorMoveState aMoveState;
+    aMoveState.m_bPosMatchesBounds = true;
+    const bool bSuccess = pFrame->GetModelPositionForViewPoint( &aPos, aCorePoint, &aMoveState );
+
+    TextFrameIndex nIndex = pFrame->MapModelToViewPos(aPos);
+    if (TextFrameIndex(0) < nIndex)
+    {
+        assert(bSuccess);
+        SwRect aResultRect;
+        pFrame->GetCharRect( aResultRect, aPos );
+        bool bVert = pFrame->IsVertical();
+        bool bR2L = pFrame->IsRightToLeft();
+
+        if ( (!bVert && aResultRect.Pos().getX() > aCorePoint.getX()) ||
+             ( bVert && aResultRect.Pos().getY() > aCorePoint.getY()) ||
+             ( bR2L  && aResultRect.Right()   < aCorePoint.getX()) )
+        {
+            SwPosition aPosPrev(pFrame->MapViewToModelPos(nIndex - TextFrameIndex(1)));
+            SwRect aResultRectPrev;
+            pFrame->GetCharRect( aResultRectPrev, aPosPrev );
+            if ( (!bVert && aResultRectPrev.Pos().getX() < aCorePoint.getX() && aResultRect.Pos().getY() == aResultRectPrev.Pos().getY()) ||
+                 ( bVert && aResultRectPrev.Pos().getY() < aCorePoint.getY() && aResultRect.Pos().getX() == aResultRectPrev.Pos().getX()) ||
+                 (  bR2L && aResultRectPrev.Right()   > aCorePoint.getX() && aResultRect.Pos().getY() == aResultRectPrev.Pos().getY()) )
+            {
+                --nIndex;
+            }
+        }
+    }
+
+    return bSuccess
+        ? GetPortionData().GetAccessiblePosition(nIndex)
+        : -1;
+}
+
+OUString SwAccessibleParagraph::getSelectedText()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nStart, nEnd;
+    bool bSelected = GetSelection( nStart, nEnd );
+    return bSelected
+           ? GetString().copy( nStart, nEnd - nStart )
+           : OUString();
+}
+
+sal_Int32 SwAccessibleParagraph::getSelectionStart()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nStart, nEnd;
+    GetSelection( nStart, nEnd );
+    return nStart;
+}
+
+sal_Int32 SwAccessibleParagraph::getSelectionEnd()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nStart, nEnd;
+    GetSelection( nStart, nEnd );
+    return nEnd;
+}
+
+sal_Bool SwAccessibleParagraph::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // parameter checking
+    sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidRange( nStartIndex, nEndIndex, nLength ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    bool bRet = false;
+
+    // get cursor shell
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell != nullptr )
+    {
+        // create pam for selection
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        TextFrameIndex const nStart(GetPortionData().GetCoreViewPosition(nStartIndex));
+        TextFrameIndex const nEnd(GetPortionData().GetCoreViewPosition(nEndIndex));
+        SwPaM aPaM(pFrame->MapViewToModelPos(nStart));
+        aPaM.SetMark();
+        *aPaM.GetPoint() = pFrame->MapViewToModelPos(nEnd);
+
+        // set PaM at cursor shell
+        bRet = Select( aPaM );
+    }
+
+    return bRet;
+}
+
+OUString SwAccessibleParagraph::getText()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return GetString();
+}
+
+OUString SwAccessibleParagraph::getTextRange(
+    sal_Int32 nStartIndex, sal_Int32 nEndIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    OUString sText( GetString() );
+
+    if ( !IsValidRange( nStartIndex, nEndIndex, sText.getLength() ) )
+        throw lang::IndexOutOfBoundsException();
+
+    OrderRange( nStartIndex, nEndIndex );
+    return sText.copy(nStartIndex, nEndIndex-nStartIndex );
+}
+
+/*accessibility::*/TextSegment SwAccessibleParagraph::getTextAtIndex( sal_Int32 nIndex, sal_Int16 nTextType )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    /*accessibility::*/TextSegment aResult;
+    aResult.SegmentStart = -1;
+    aResult.SegmentEnd = -1;
+
+    const OUString rText = GetString();
+    // implement the silly specification that first position after
+    // text must return an empty string, rather than throwing an
+    // IndexOutOfBoundsException, except for LINE, where the last
+    // line is returned
+    if( nIndex == rText.getLength() && AccessibleTextType::LINE != nTextType )
+        return aResult;
+
+    // with error checking
+    i18n::Boundary aBound;
+    bool bWord = GetTextBoundary( aBound, rText, nIndex, nTextType );
+
+    OSL_ENSURE( aBound.startPos >= 0,               "illegal boundary" );
+    OSL_ENSURE( aBound.startPos <= aBound.endPos,   "illegal boundary" );
+
+    // return word (if present)
+    if ( bWord )
+    {
+        aResult.SegmentText = rText.copy( aBound.startPos, aBound.endPos - aBound.startPos );
+        aResult.SegmentStart = aBound.startPos;
+        aResult.SegmentEnd = aBound.endPos;
+    }
+
+    return aResult;
+}
+
+/*accessibility::*/TextSegment SwAccessibleParagraph::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 nTextType )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const OUString rText = GetString();
+
+    /*accessibility::*/TextSegment aResult;
+    aResult.SegmentStart = -1;
+    aResult.SegmentEnd = -1;
+    //If nIndex = 0, then nobefore text so return -1 directly.
+    if( nIndex == 0 )
+            return aResult;
+    //Tab will be return when call WORDTYPE
+
+    // get starting pos
+    i18n::Boundary aBound;
+    if (nIndex ==  rText.getLength())
+        aBound.startPos = aBound.endPos = nIndex;
+    else
+    {
+        bool bTmp = GetTextBoundary( aBound, rText, nIndex, nTextType );
+
+        if ( ! bTmp )
+            aBound.startPos = aBound.endPos = nIndex;
+    }
+
+    // now skip to previous word
+    if (nTextType==2 || nTextType == 3)
+    {
+        i18n::Boundary preBound = aBound;
+        while(preBound.startPos==aBound.startPos && nIndex > 0)
+        {
+            nIndex = min( nIndex, preBound.startPos ) - 1;
+            if( nIndex < 0 ) break;
+            GetTextBoundary( preBound, rText, nIndex, nTextType );
+        }
+        //if (nIndex>0)
+        if (nIndex>=0)
+        //Tab will be return when call WORDTYPE
+        {
+            aResult.SegmentText = rText.copy( preBound.startPos, preBound.endPos - preBound.startPos );
+            aResult.SegmentStart = preBound.startPos;
+            aResult.SegmentEnd = preBound.endPos;
+        }
+    }
+    else
+    {
+        bool bWord = false;
+        while( !bWord )
+        {
+            nIndex = min( nIndex, aBound.startPos ) - 1;
+            if( nIndex >= 0 )
+            {
+                bWord = GetTextBoundary( aBound, rText, nIndex, nTextType );
+            }
+            else
+                break;  // exit if beginning of string is reached
+        }
+
+        if (bWord && nIndex<rText.getLength())
+        {
+            aResult.SegmentText = rText.copy( aBound.startPos, aBound.endPos - aBound.startPos );
+            aResult.SegmentStart = aBound.startPos;
+            aResult.SegmentEnd = aBound.endPos;
+        }
+    }
+    return aResult;
+}
+
+/*accessibility::*/TextSegment SwAccessibleParagraph::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 nTextType )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    /*accessibility::*/TextSegment aResult;
+    aResult.SegmentStart = -1;
+    aResult.SegmentEnd = -1;
+    const OUString rText = GetString();
+
+    // implement the silly specification that first position after
+    // text must return an empty string, rather than throwing an
+    // IndexOutOfBoundsException
+    if( nIndex == rText.getLength() )
+        return aResult;
+
+    // get first word, then skip to next word
+    i18n::Boundary aBound;
+    GetTextBoundary( aBound, rText, nIndex, nTextType );
+    bool bWord = false;
+    while( !bWord )
+    {
+        nIndex = max( sal_Int32(nIndex+1), aBound.endPos );
+        if( nIndex < rText.getLength() )
+            bWord = GetTextBoundary( aBound, rText, nIndex, nTextType );
+        else
+            break;  // exit if end of string is reached
+    }
+
+    if ( bWord )
+    {
+        aResult.SegmentText = rText.copy( aBound.startPos, aBound.endPos - aBound.startPos );
+        aResult.SegmentStart = aBound.startPos;
+        aResult.SegmentEnd = aBound.endPos;
+    }
+
+/*
+        sal_Bool bWord = sal_False;
+    bWord = GetTextBoundary( aBound, rText, nIndex, nTextType );
+
+        if (nTextType==2)
+        {
+                Boundary nexBound=aBound;
+
+        // real current word
+        if( nIndex <= aBound.endPos && nIndex >= aBound.startPos )
+        {
+            while(nexBound.endPos==aBound.endPos&&nIndex<rText.getLength())
+            {
+                // nIndex = max( (sal_Int32)(nIndex), nexBound.endPos) + 1;
+                nIndex = max( (sal_Int32)(nIndex), nexBound.endPos) ;
+                const sal_Unicode* pStr = rText.getStr();
+                if (pStr)
+                {
+                    if( pStr[nIndex] == sal_Unicode(' ') )
+                        nIndex++;
+                }
+                if( nIndex < rText.getLength() )
+                {
+                    bWord = GetTextBoundary( nexBound, rText, nIndex, nTextType );
+                }
+            }
+        }
+
+        if (bWord && nIndex<rText.getLength())
+        {
+            aResult.SegmentText = rText.copy( nexBound.startPos, nexBound.endPos - nexBound.startPos );
+            aResult.SegmentStart = nexBound.startPos;
+            aResult.SegmentEnd = nexBound.endPos;
+        }
+
+    }
+    else
+    {
+        bWord = sal_False;
+        while( !bWord )
+        {
+            nIndex = max( (sal_Int32)(nIndex+1), aBound.endPos );
+            if( nIndex < rText.getLength() )
+            {
+                bWord = GetTextBoundary( aBound, rText, nIndex, nTextType );
+            }
+            else
+                break;  // exit if end of string is reached
+        }
+        if (bWord && nIndex<rText.getLength())
+        {
+            aResult.SegmentText = rText.copy( aBound.startPos, aBound.endPos - aBound.startPos );
+            aResult.SegmentStart = aBound.startPos;
+            aResult.SegmentEnd = aBound.endPos;
+        }
+    }
+*/
+    return aResult;
+}
+
+sal_Bool SwAccessibleParagraph::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // select and copy (through dispatch mechanism)
+    setSelection( nStartIndex, nEndIndex );
+    ExecuteAtViewShell( SID_COPY );
+    return true;
+}
+
+sal_Bool SwAccessibleParagraph::scrollSubstringTo( sal_Int32 nStartIndex,
+    sal_Int32 nEndIndex, AccessibleScrollType aScrollType )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // parameter checking
+    sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidRange( nStartIndex, nEndIndex, nLength ) )
+        throw lang::IndexOutOfBoundsException();
+
+    vcl::Window *pWin = GetWindow();
+    if ( ! pWin )
+        throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+
+    /* Start and end character bounds, in pixels, relative to the paragraph */
+    awt::Rectangle startR, endR;
+    startR = getCharacterBounds(nStartIndex);
+    endR = getCharacterBounds(nEndIndex);
+
+    /* Adjust points to fit the bounding box of both bounds. */
+    Point sP(std::min(startR.X, endR.X), startR.Y);
+    Point eP(std::max(startR.X + startR.Width, endR.X + endR.Width), endR.Y + endR.Height);
+
+    /* Offset the values relative to the view shell frame */
+    SwRect aFrameLogBounds( GetBounds( *(GetMap()) ) ); // twip rel to doc root
+    Point aFramePixPos( GetMap()->CoreToPixel( aFrameLogBounds ).TopLeft() );
+    sP += aFramePixPos;
+    eP += aFramePixPos;
+
+    Point startPoint(GetMap()->PixelToCore(sP));
+    Point endPoint(GetMap()->PixelToCore(eP));
+
+    switch (aScrollType)
+    {
+#ifdef notyet
+        case AccessibleScrollType_SCROLL_TOP_LEFT:
+            break;
+        case AccessibleScrollType_SCROLL_BOTTOM_RIGHT:
+            break;
+        case AccessibleScrollType_SCROLL_TOP_EDGE:
+            break;
+        case AccessibleScrollType_SCROLL_BOTTOM_EDGE:
+            break;
+        case AccessibleScrollType_SCROLL_LEFT_EDGE:
+            break;
+        case AccessibleScrollType_SCROLL_RIGHT_EDGE:
+            break;
+#endif
+        case AccessibleScrollType_SCROLL_ANYWHERE:
+            break;
+        default:
+            return false;
+    }
+
+    const SwRect aRect(startPoint, endPoint);
+    SwViewShell* pViewShell = GetMap()->GetShell();
+    OSL_ENSURE( pViewShell != nullptr, "View shell expected!" );
+
+    ScrollMDI(pViewShell, aRect, USHRT_MAX, USHRT_MAX);
+
+    return true;
+}
+
+// XAccessibleEditableText
+
+sal_Bool SwAccessibleParagraph::cutText( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if( !IsEditableState() )
+        return false;
+
+    // select and cut (through dispatch mechanism)
+    setSelection( nStartIndex, nEndIndex );
+    ExecuteAtViewShell( SID_CUT );
+    return true;
+}
+
+sal_Bool SwAccessibleParagraph::pasteText( sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if( !IsEditableState() )
+        return false;
+
+    // select and paste (through dispatch mechanism)
+    setSelection( nIndex, nIndex );
+    ExecuteAtViewShell( SID_PASTE );
+    return true;
+}
+
+sal_Bool SwAccessibleParagraph::deleteText( sal_Int32 nStartIndex, sal_Int32 nEndIndex )
+{
+    return replaceText( nStartIndex, nEndIndex, OUString() );
+}
+
+sal_Bool SwAccessibleParagraph::insertText( const OUString& sText, sal_Int32 nIndex )
+{
+    return replaceText( nIndex, nIndex, sText );
+}
+
+sal_Bool SwAccessibleParagraph::replaceText(
+    sal_Int32 nStartIndex, sal_Int32 nEndIndex,
+    const OUString& sReplacement )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const OUString& rText = GetString();
+
+    if( !IsValidRange( nStartIndex, nEndIndex, rText.getLength() ) )
+        throw lang::IndexOutOfBoundsException();
+
+    if( !IsEditableState() )
+        return false;
+
+    // translate positions
+    TextFrameIndex nStart;
+    TextFrameIndex nEnd;
+    bool bSuccess = GetPortionData().GetEditableRange(
+                                    nStartIndex, nEndIndex, nStart, nEnd );
+
+    // edit only if the range is editable
+    if( bSuccess )
+    {
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        // create SwPosition for nStartIndex
+        SwPosition aStartPos(pFrame->MapViewToModelPos(nStart));
+
+        // create SwPosition for nEndIndex
+        SwPosition aEndPos(pFrame->MapViewToModelPos(nEnd));
+
+        // now create XTextRange as helper and set string
+        const uno::Reference<text::XTextRange> xRange(
+            SwXTextRange::CreateXTextRange(
+                const_cast<SwDoc&>(pFrame->GetDoc()), aStartPos, &aEndPos));
+        xRange->setString(sReplacement);
+
+        // delete portion data
+        ClearPortionData();
+    }
+
+    return bSuccess;
+
+}
+
+sal_Bool SwAccessibleParagraph::setAttributes(
+    sal_Int32 nStartIndex,
+    sal_Int32 nEndIndex,
+    const uno::Sequence<PropertyValue>& rAttributeSet )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const OUString& rText = GetString();
+
+    if( ! IsValidRange( nStartIndex, nEndIndex, rText.getLength() ) )
+        throw lang::IndexOutOfBoundsException();
+
+    if( !IsEditableState() )
+        return false;
+
+    // create a (dummy) text portion for the sole purpose of calling
+    // setPropertyValue on it
+    rtl::Reference<SwXTextPortion> xPortion = CreateUnoPortion( nStartIndex,
+                                                              nEndIndex );
+
+    // build sorted index array
+    sal_Int32 nLength = rAttributeSet.getLength();
+    const PropertyValue* pPairs = rAttributeSet.getConstArray();
+    std::vector<sal_Int32> aIndices(nLength);
+    std::iota(aIndices.begin(), aIndices.end(), 0);
+    std::sort(aIndices.begin(), aIndices.end(), IndexCompare(pPairs));
+
+    // create sorted sequences according to index array
+    uno::Sequence< OUString > aNames( nLength );
+    OUString* pNames = aNames.getArray();
+    uno::Sequence< uno::Any > aValues( nLength );
+    uno::Any* pValues = aValues.getArray();
+    for (sal_Int32 i = 0; i < nLength; ++i)
+    {
+        const PropertyValue& rVal = pPairs[aIndices[i]];
+        pNames[i]  = rVal.Name;
+        pValues[i] = rVal.Value;
+    }
+    aIndices.clear();
+
+    // now set the values
+    bool bRet = true;
+    try
+    {
+        xPortion->setPropertyValues( aNames, aValues );
+    }
+    catch (const UnknownPropertyException&)
+    {
+        // error handling through return code!
+        bRet = false;
+    }
+
+    return bRet;
+}
+
+sal_Bool SwAccessibleParagraph::setText( const OUString& sText )
+{
+    return replaceText(0, GetString().getLength(), sText);
+}
+
+// XAccessibleSelection
+
+void SwAccessibleParagraph::selectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    ThrowIfDisposed();
+
+    m_aSelectionHelper.selectAccessibleChild(nChildIndex);
+}
+
+sal_Bool SwAccessibleParagraph::isAccessibleChildSelected(
+    sal_Int32 nChildIndex )
+{
+    ThrowIfDisposed();
+
+    return m_aSelectionHelper.isAccessibleChildSelected(nChildIndex);
+}
+
+void SwAccessibleParagraph::clearAccessibleSelection(  )
+{
+    ThrowIfDisposed();
+}
+
+void SwAccessibleParagraph::selectAllAccessibleChildren(  )
+{
+    ThrowIfDisposed();
+
+    m_aSelectionHelper.selectAllAccessibleChildren();
+}
+
+sal_Int32 SwAccessibleParagraph::getSelectedAccessibleChildCount(  )
+{
+    ThrowIfDisposed();
+
+    return m_aSelectionHelper.getSelectedAccessibleChildCount();
+}
+
+uno::Reference<XAccessible> SwAccessibleParagraph::getSelectedAccessibleChild(
+    sal_Int32 nSelectedChildIndex )
+{
+    ThrowIfDisposed();
+
+    return m_aSelectionHelper.getSelectedAccessibleChild(nSelectedChildIndex);
+}
+
+// index has to be treated as global child index.
+void SwAccessibleParagraph::deselectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    ThrowIfDisposed();
+
+    m_aSelectionHelper.deselectAccessibleChild( nChildIndex );
+}
+
+// XAccessibleHypertext
+
+namespace {
+
+class SwHyperlinkIter_Impl
+{
+    SwTextFrame const& m_rFrame;
+    sw::MergedAttrIter m_Iter;
+    TextFrameIndex m_nStt;
+    TextFrameIndex m_nEnd;
+
+public:
+    explicit SwHyperlinkIter_Impl(const SwTextFrame & rTextFrame);
+    const SwTextAttr *next(SwTextNode const** ppNode = nullptr);
+
+    TextFrameIndex startIdx() const { return m_nStt; }
+    TextFrameIndex endIdx() const { return m_nEnd; }
+};
+
+}
+
+SwHyperlinkIter_Impl::SwHyperlinkIter_Impl(const SwTextFrame & rTextFrame)
+    : m_rFrame(rTextFrame)
+    , m_Iter(rTextFrame)
+    , m_nStt(rTextFrame.GetOffset())
+{
+    const SwTextFrame *const pFollFrame = rTextFrame.GetFollow();
+    m_nEnd = pFollFrame ? pFollFrame->GetOffset() : TextFrameIndex(rTextFrame.GetText().getLength());
+}
+
+const SwTextAttr *SwHyperlinkIter_Impl::next(SwTextNode const** ppNode)
+{
+    const SwTextAttr *pAttr = nullptr;
+    if (ppNode)
+    {
+        *ppNode = nullptr;
+    }
+
+    SwTextNode const* pNode(nullptr);
+    while (SwTextAttr const*const pHt = m_Iter.NextAttr(&pNode))
+    {
+        if (RES_TXTATR_INETFMT == pHt->Which())
+        {
+            const TextFrameIndex nHtStt(m_rFrame.MapModelToView(pNode, pHt->GetStart()));
+            const TextFrameIndex nHtEnd(m_rFrame.MapModelToView(pNode, pHt->GetAnyEnd()));
+            if (nHtEnd > nHtStt &&
+                ((nHtStt >= m_nStt && nHtStt < m_nEnd) ||
+                 (nHtEnd > m_nStt && nHtEnd <= m_nEnd)))
+            {
+                pAttr = pHt;
+                if (ppNode)
+                {
+                    *ppNode = pNode;
+                }
+                break;
+            }
+        }
+    }
+
+    return pAttr;
+};
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getHyperLinkCount()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nCount = 0;
+    // #i77108# - provide hyperlinks also in editable documents.
+
+    const SwTextFrame *pTextFrame = static_cast<const SwTextFrame*>( GetFrame() );
+    SwHyperlinkIter_Impl aIter(*pTextFrame);
+    while( aIter.next() )
+        nCount++;
+
+    return nCount;
+}
+
+uno::Reference< XAccessibleHyperlink > SAL_CALL
+    SwAccessibleParagraph::getHyperLink( sal_Int32 nLinkIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    uno::Reference< XAccessibleHyperlink > xRet;
+
+    const SwTextFrame *pTextFrame = static_cast<const SwTextFrame*>( GetFrame() );
+    SwHyperlinkIter_Impl aHIter(*pTextFrame);
+    SwTextNode const* pNode(nullptr);
+    SwTextAttr* pHt = const_cast<SwTextAttr*>(aHIter.next(&pNode));
+    for (sal_Int32 nTIndex = 0; pHt && nTIndex <= nLinkIndex; ++nTIndex)
+    {
+        if( nTIndex == nLinkIndex )
+        {   // found
+            if (!m_pHyperTextData)
+                m_pHyperTextData.reset( new SwAccessibleHyperTextData );
+            SwAccessibleHyperTextData::iterator aIter =
+                m_pHyperTextData ->find( pHt );
+            if (aIter != m_pHyperTextData->end())
+            {
+                xRet = (*aIter).second;
+            }
+            if (!xRet.is())
+            {
+                TextFrameIndex const nHintStart(pTextFrame->MapModelToView(pNode, pHt->GetStart()));
+                TextFrameIndex const nHintEnd(pTextFrame->MapModelToView(pNode, pHt->GetAnyEnd()));
+                const sal_Int32 nTmpHStt = GetPortionData().GetAccessiblePosition(
+                    max(aHIter.startIdx(), nHintStart));
+                const sal_Int32 nTmpHEnd = GetPortionData().GetAccessiblePosition(
+                    min(aHIter.endIdx(), nHintEnd));
+                xRet = new SwAccessibleHyperlink(*pHt,
+                    *this, nTmpHStt, nTmpHEnd );
+                if (aIter != m_pHyperTextData->end())
+                {
+                    (*aIter).second = xRet;
+                }
+                else
+                {
+                    m_pHyperTextData->emplace( pHt, xRet );
+                }
+            }
+            break;
+        }
+
+        // iterate next hyperlink
+        pHt = const_cast<SwTextAttr*>(aHIter.next(&pNode));
+    }
+    if( !xRet.is() )
+        throw lang::IndexOutOfBoundsException();
+
+    return xRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getHyperLinkIndex( sal_Int32 nCharIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // parameter checking
+    sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidPosition( nCharIndex, nLength ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    sal_Int32 nRet = -1;
+    // #i77108#
+    {
+        const SwTextFrame *pTextFrame = static_cast<const SwTextFrame*>( GetFrame() );
+        SwHyperlinkIter_Impl aHIter(*pTextFrame);
+
+        const TextFrameIndex nIdx = GetPortionData().GetCoreViewPosition(nCharIndex);
+        sal_Int32 nPos = 0;
+        SwTextNode const* pNode(nullptr);
+        const SwTextAttr *pHt = aHIter.next(&pNode);
+        while (pHt && (nIdx < pTextFrame->MapModelToView(pNode, pHt->GetStart())
+                       || nIdx >= pTextFrame->MapModelToView(pNode, pHt->GetAnyEnd())))
+        {
+            pHt = aHIter.next(&pNode);
+            nPos++;
+        }
+
+        if( pHt )
+            nRet = nPos;
+    }
+
+    if (nRet == -1)
+        throw lang::IndexOutOfBoundsException();
+    return nRet;
+}
+
+// #i71360#, #i108125# - adjustments for change tracking text markup
+sal_Int32 SAL_CALL SwAccessibleParagraph::getTextMarkupCount( sal_Int32 nTextMarkupType )
+{
+    SolarMutexGuard g;
+
+    std::unique_ptr<SwTextMarkupHelper> pTextMarkupHelper;
+    switch ( nTextMarkupType )
+    {
+        case text::TextMarkupType::TRACK_CHANGE_INSERTION:
+        case text::TextMarkupType::TRACK_CHANGE_DELETION:
+        case text::TextMarkupType::TRACK_CHANGE_FORMATCHANGE:
+        {
+            pTextMarkupHelper.reset( new SwTextMarkupHelper(
+                GetPortionData(),
+                *(mpParaChangeTrackInfo->getChangeTrackingTextMarkupList( nTextMarkupType ) )) );
+        }
+        break;
+        default:
+        {
+            SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+            pTextMarkupHelper.reset(new SwTextMarkupHelper(GetPortionData(), *pFrame));
+        }
+    }
+
+    return pTextMarkupHelper->getTextMarkupCount( nTextMarkupType );
+}
+
+//MSAA Extension Implementation in app  module
+sal_Bool SAL_CALL SwAccessibleParagraph::scrollToPosition( const css::awt::Point&, sal_Bool )
+{
+    return false;
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getSelectedPortionCount(  )
+{
+    SolarMutexGuard g;
+
+    sal_Int32 nSelected = 0;
+    SwPaM* pCursor = GetCursor( true );
+    if( pCursor != nullptr )
+    {
+        // get SwPosition for my node
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        SwNodeOffset nFirstNode(pFrame->GetTextNodeFirst()->GetIndex());
+        SwNodeOffset nLastNode;
+        if (sw::MergedPara const*const pMerged = pFrame->GetMergedPara())
+        {
+            nLastNode = pMerged->pLastNode->GetIndex();
+        }
+        else
+        {
+            nLastNode = nFirstNode;
+        }
+
+        // iterate over ring
+        for(SwPaM& rTmpCursor : pCursor->GetRingContainer())
+        {
+            // ignore, if no mark
+            if( rTmpCursor.HasMark() )
+            {
+                // check whether frame's node(s) are 'inside' pCursor
+                SwPosition* pStart = rTmpCursor.Start();
+                SwNodeOffset nStartIndex = pStart->nNode.GetIndex();
+                SwPosition* pEnd = rTmpCursor.End();
+                SwNodeOffset nEndIndex = pEnd->nNode.GetIndex();
+                if ((nStartIndex <= nLastNode) && (nFirstNode <= nEndIndex))
+                {
+                    nSelected++;
+                }
+                // else: this PaM doesn't point to this paragraph
+            }
+            // else: this PaM is collapsed and doesn't select anything
+        }
+    }
+    return nSelected;
+
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getSeletedPositionStart( sal_Int32 nSelectedPortionIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nStart=-1, nEnd=-1;
+    /*sal_Bool bSelected = */GetSelectionAtIndex(&nSelectedPortionIndex, nStart, nEnd );
+    return nStart;
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getSeletedPositionEnd( sal_Int32 nSelectedPortionIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nStart=-1, nEnd=-1;
+    /*sal_Bool bSelected = */GetSelectionAtIndex(&nSelectedPortionIndex, nStart, nEnd );
+    return nEnd;
+}
+
+sal_Bool SAL_CALL SwAccessibleParagraph::removeSelection( sal_Int32 selectionIndex )
+{
+    SolarMutexGuard g;
+
+    if(selectionIndex < 0) return false;
+
+    sal_Int32 nSelected = selectionIndex;
+
+    // get the selection, and test whether it affects our text node
+    SwPaM* pCursor = GetCursor( true );
+
+    if( pCursor != nullptr )
+    {
+        bool bRet = false;
+
+        // get SwPosition for my node
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        SwNodeOffset nFirstNode(pFrame->GetTextNodeFirst()->GetIndex());
+        SwNodeOffset nLastNode;
+        if (sw::MergedPara const*const pMerged = pFrame->GetMergedPara())
+        {
+            nLastNode = pMerged->pLastNode->GetIndex();
+        }
+        else
+        {
+            nLastNode = nFirstNode;
+        }
+
+        // iterate over ring
+        SwPaM* pRingStart = pCursor;
+        do
+        {
+            // ignore, if no mark
+            if( pCursor->HasMark() )
+            {
+                // check whether frame's node(s) are 'inside' pCursor
+                SwPosition* pStart = pCursor->Start();
+                SwNodeOffset nStartIndex = pStart->nNode.GetIndex();
+                SwPosition* pEnd = pCursor->End();
+                SwNodeOffset nEndIndex = pEnd->nNode.GetIndex();
+                if ((nStartIndex <= nLastNode) && (nFirstNode <= nEndIndex))
+                {
+                    if( nSelected == 0 )
+                    {
+                        pCursor->MoveTo(nullptr);
+                        delete pCursor;
+                        bRet = true;
+                    }
+                    else
+                    {
+                        nSelected--;
+                    }
+                }
+            }
+            // else: this PaM is collapsed and doesn't select anything
+            if(!bRet)
+                pCursor = pCursor->GetNext();
+        }
+        while( !bRet && (pCursor != pRingStart) );
+    }
+    return true;
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::addSelection( sal_Int32, sal_Int32 startOffset, sal_Int32 endOffset)
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // parameter checking
+    sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidRange( startOffset, endOffset, nLength ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    sal_Int32 nSelectedCount = getSelectedPortionCount();
+    for ( sal_Int32 i = nSelectedCount ; i >= 0 ; i--)
+    {
+        sal_Int32 nStart, nEnd;
+        bool bSelected = GetSelectionAtIndex(&i, nStart, nEnd );
+        if(bSelected)
+        {
+            if(nStart <= nEnd )
+            {
+                if (( startOffset>=nStart && startOffset <=nEnd ) ||     //startOffset in a selection
+                       ( endOffset>=nStart && endOffset <=nEnd )     ||  //endOffset in a selection
+                    ( startOffset <= nStart && endOffset >=nEnd)  ||       //start and  end include the old selection
+                    ( startOffset >= nStart && endOffset <=nEnd) )
+                {
+                    removeSelection(i);
+                }
+
+            }
+            else
+            {
+                if (( startOffset>=nEnd && startOffset <=nStart ) ||     //startOffset in a selection
+                       ( endOffset>=nEnd && endOffset <=nStart )     || //endOffset in a selection
+                    ( startOffset <= nStart && endOffset >=nEnd)  ||       //start and  end include the old selection
+                    ( startOffset >= nStart && endOffset <=nEnd) )
+
+                {
+                    removeSelection(i);
+                }
+            }
+        }
+
+    }
+
+    // get cursor shell
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell != nullptr )
+    {
+        // create pam for selection
+        pCursorShell->StartAction();
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        SwPaM* aPaM = pCursorShell->CreateCursor();
+        aPaM->SetMark();
+        *aPaM->GetPoint() = pFrame->MapViewToModelPos(GetPortionData().GetCoreViewPosition(startOffset));
+        *aPaM->GetMark() = pFrame->MapViewToModelPos(GetPortionData().GetCoreViewPosition(endOffset));
+        pCursorShell->EndAction();
+    }
+
+    return 0;
+}
+
+/*accessibility::*/TextSegment SAL_CALL
+        SwAccessibleParagraph::getTextMarkup( sal_Int32 nTextMarkupIndex,
+                                              sal_Int32 nTextMarkupType )
+{
+    SolarMutexGuard g;
+
+    std::unique_ptr<SwTextMarkupHelper> pTextMarkupHelper;
+    switch ( nTextMarkupType )
+    {
+        case text::TextMarkupType::TRACK_CHANGE_INSERTION:
+        case text::TextMarkupType::TRACK_CHANGE_DELETION:
+        case text::TextMarkupType::TRACK_CHANGE_FORMATCHANGE:
+        {
+            pTextMarkupHelper.reset( new SwTextMarkupHelper(
+                GetPortionData(),
+                *(mpParaChangeTrackInfo->getChangeTrackingTextMarkupList( nTextMarkupType ) )) );
+        }
+        break;
+        default:
+        {
+            SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+            pTextMarkupHelper.reset(new SwTextMarkupHelper(GetPortionData(), *pFrame));
+        }
+    }
+
+    return pTextMarkupHelper->getTextMarkup( nTextMarkupIndex, nTextMarkupType );
+}
+
+uno::Sequence< /*accessibility::*/TextSegment > SAL_CALL
+        SwAccessibleParagraph::getTextMarkupAtIndex( sal_Int32 nCharIndex,
+                                                     sal_Int32 nTextMarkupType )
+{
+    SolarMutexGuard g;
+
+    // parameter checking
+    const sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidPosition( nCharIndex, nLength ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    std::unique_ptr<SwTextMarkupHelper> pTextMarkupHelper;
+    switch ( nTextMarkupType )
+    {
+        case text::TextMarkupType::TRACK_CHANGE_INSERTION:
+        case text::TextMarkupType::TRACK_CHANGE_DELETION:
+        case text::TextMarkupType::TRACK_CHANGE_FORMATCHANGE:
+        {
+            pTextMarkupHelper.reset( new SwTextMarkupHelper(
+                GetPortionData(),
+                *(mpParaChangeTrackInfo->getChangeTrackingTextMarkupList( nTextMarkupType ) )) );
+        }
+        break;
+        default:
+        {
+            SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+            pTextMarkupHelper.reset(new SwTextMarkupHelper(GetPortionData(), *pFrame));
+        }
+    }
+
+    return pTextMarkupHelper->getTextMarkupAtIndex( nCharIndex, nTextMarkupType );
+}
+
+// #i89175#
+sal_Int32 SAL_CALL SwAccessibleParagraph::getLineNumberAtIndex( sal_Int32 nIndex )
+{
+    SolarMutexGuard g;
+
+    // parameter checking
+    const sal_Int32 nLength = GetString().getLength();
+    if ( ! IsValidPosition( nIndex, nLength ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    const sal_Int32 nLineNo = GetPortionData().GetLineNo( nIndex );
+    return nLineNo;
+}
+
+/*accessibility::*/TextSegment SAL_CALL
+        SwAccessibleParagraph::getTextAtLineNumber( sal_Int32 nLineNo )
+{
+    SolarMutexGuard g;
+
+    // parameter checking
+    if ( nLineNo < 0 ||
+         nLineNo >= GetPortionData().GetLineCount() )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    i18n::Boundary aLineBound;
+    GetPortionData().GetBoundaryOfLine( nLineNo, aLineBound );
+
+    /*accessibility::*/TextSegment aTextAtLine;
+    const OUString rText = GetString();
+    aTextAtLine.SegmentText = rText.copy( aLineBound.startPos,
+                                          aLineBound.endPos - aLineBound.startPos );
+    aTextAtLine.SegmentStart = aLineBound.startPos;
+    aTextAtLine.SegmentEnd = aLineBound.endPos;
+
+    return aTextAtLine;
+}
+
+/*accessibility::*/TextSegment SAL_CALL SwAccessibleParagraph::getTextAtLineWithCaret()
+{
+    SolarMutexGuard g;
+
+    const sal_Int32 nLineNoOfCaret = getNumberOfLineWithCaret();
+
+    if ( nLineNoOfCaret >= 0 &&
+         nLineNoOfCaret < GetPortionData().GetLineCount() )
+    {
+        return getTextAtLineNumber( nLineNoOfCaret );
+    }
+
+    return /*accessibility::*/TextSegment();
+}
+
+sal_Int32 SAL_CALL SwAccessibleParagraph::getNumberOfLineWithCaret()
+{
+    SolarMutexGuard g;
+
+    const sal_Int32 nCaretPos = getCaretPosition();
+    const sal_Int32 nLength = GetString().getLength();
+    if ( !IsValidPosition( nCaretPos, nLength ) )
+    {
+        return -1;
+    }
+
+    sal_Int32 nLineNo = GetPortionData().GetLineNo( nCaretPos );
+
+    // special handling for cursor positioned at end of text line via End key
+    if ( nCaretPos != 0 )
+    {
+        i18n::Boundary aLineBound;
+        GetPortionData().GetBoundaryOfLine( nLineNo, aLineBound );
+        if ( nCaretPos == aLineBound.startPos )
+        {
+            SwCursorShell* pCursorShell = SwAccessibleParagraph::GetCursorShell();
+            if ( pCursorShell != nullptr )
+            {
+                const awt::Rectangle aCharRect = getCharacterBounds( nCaretPos );
+
+                const SwRect& aCursorCoreRect = pCursorShell->GetCharRect();
+                // translate core coordinates into accessibility coordinates
+                vcl::Window *pWin = GetWindow();
+                if (!pWin)
+                {
+                    throw uno::RuntimeException("no Window", static_cast<cppu::OWeakObject*>(this));
+                }
+
+                tools::Rectangle aScreenRect( GetMap()->CoreToPixel( aCursorCoreRect ));
+
+                SwRect aFrameLogBounds( GetBounds( *(GetMap()) ) ); // twip rel to doc root
+                Point aFramePixPos( GetMap()->CoreToPixel( aFrameLogBounds ).TopLeft() );
+                aScreenRect.Move( -aFramePixPos.getX(), -aFramePixPos.getY() );
+
+                // convert into AWT Rectangle
+                const awt::Rectangle aCursorRect( aScreenRect.Left(),
+                                                  aScreenRect.Top(),
+                                                  aScreenRect.GetWidth(),
+                                                  aScreenRect.GetHeight() );
+
+                if ( aCharRect.X != aCursorRect.X ||
+                     aCharRect.Y != aCursorRect.Y )
+                {
+                    --nLineNo;
+                }
+            }
+        }
+    }
+
+    return nLineNo;
+}
+
+// #i108125#
+void SwAccessibleParagraph::Notify(SfxBroadcaster&, const SfxHint&)
+{
+    mpParaChangeTrackInfo->reset();
+}
+
+bool SwAccessibleParagraph::GetSelectionAtIndex(
+    sal_Int32 * pSelection, sal_Int32& nStart, sal_Int32& nEnd)
+{
+    if (pSelection && *pSelection < 0) return false;
+
+    bool bRet = false;
+    nStart = -1;
+    nEnd = -1;
+
+    // get the selection, and test whether it affects our text node
+    SwPaM* pCursor = GetCursor( true );
+    if( pCursor != nullptr )
+    {
+        // get SwPosition for my node
+        SwTextFrame const*const pFrame(static_cast<SwTextFrame const*>(GetFrame()));
+        SwNodeOffset nFirstNode(pFrame->GetTextNodeFirst()->GetIndex());
+        SwNodeOffset nLastNode;
+        if (sw::MergedPara const*const pMerged = pFrame->GetMergedPara())
+        {
+            nLastNode = pMerged->pLastNode->GetIndex();
+        }
+        else
+        {
+            nLastNode = nFirstNode;
+        }
+
+        // iterate over ring
+        for(SwPaM& rTmpCursor : pCursor->GetRingContainer())
+        {
+            // ignore, if no mark
+            if( rTmpCursor.HasMark() )
+            {
+                // check whether frame's node(s) are 'inside' pCursor
+                SwPosition* pStart = rTmpCursor.Start();
+                SwNodeOffset nStartIndex = pStart->nNode.GetIndex();
+                SwPosition* pEnd = rTmpCursor.End();
+                SwNodeOffset nEndIndex = pEnd->nNode.GetIndex();
+                if ((nStartIndex <= nLastNode) && (nFirstNode <= nEndIndex))
+                {
+                    if (!pSelection || *pSelection == 0)
+                    {
+                        // translate start and end positions
+
+                        // start position
+                        sal_Int32 nLocalStart = -1;
+                        if (nStartIndex < nFirstNode)
+                        {
+                            // selection starts in previous node:
+                            // then our local selection starts with the paragraph
+                            nLocalStart = 0;
+                        }
+                        else
+                        {
+                            assert(FrameContainsNode(*pFrame, nStartIndex));
+
+                            // selection starts in this node:
+                            // then check whether it's before or inside our part of
+                            // the paragraph, and if so, get the proper position
+                            const TextFrameIndex nCoreStart =
+                                pFrame->MapModelToViewPos(*pStart);
+                            if( nCoreStart <
+                                GetPortionData().GetFirstValidCorePosition() )
+                            {
+                                nLocalStart = 0;
+                            }
+                            else if( nCoreStart <=
+                                     GetPortionData().GetLastValidCorePosition() )
+                            {
+                                SAL_WARN_IF(
+                                    !GetPortionData().IsValidCorePosition(
+                                                                  nCoreStart),
+                                    "sw.a11y",
+                                    "problem determining valid core position");
+
+                                nLocalStart =
+                                    GetPortionData().GetAccessiblePosition(
+                                                                      nCoreStart );
+                            }
+                        }
+
+                        // end position
+                        sal_Int32 nLocalEnd = -1;
+                        if (nLastNode < nEndIndex)
+                        {
+                            // selection ends in following node:
+                            // then our local selection extends to the end
+                            nLocalEnd = GetPortionData().GetAccessibleString().
+                                                                       getLength();
+                        }
+                        else
+                        {
+                            assert(FrameContainsNode(*pFrame, nEndIndex));
+
+                            // selection ends in this node: then select everything
+                            // before our part of the node
+                            const TextFrameIndex nCoreEnd =
+                                pFrame->MapModelToViewPos(*pEnd);
+                            if( nCoreEnd >
+                                    GetPortionData().GetLastValidCorePosition() )
+                            {
+                                // selection extends beyond out part of this para
+                                nLocalEnd = GetPortionData().GetAccessibleString().
+                                                                       getLength();
+                            }
+                            else if( nCoreEnd >=
+                                     GetPortionData().GetFirstValidCorePosition() )
+                            {
+                                // selection is inside our part of this para
+                                SAL_WARN_IF(
+                                    !GetPortionData().IsValidCorePosition(
+                                                                  nCoreEnd),
+                                    "sw.a11y",
+                                    "problem determining valid core position");
+
+                                nLocalEnd = GetPortionData().GetAccessiblePosition(
+                                                                       nCoreEnd );
+                            }
+                        }
+
+                        if( ( nLocalStart != -1 ) && ( nLocalEnd != -1 ) )
+                        {
+                            nStart = nLocalStart;
+                            nEnd = nLocalEnd;
+                            bRet = true;
+                        }
+                    } // if hit the index
+                    else
+                    {
+                        --*pSelection;
+                    }
+                }
+                // else: this PaM doesn't point to this paragraph
+            }
+            // else: this PaM is collapsed and doesn't select anything
+            if(bRet)
+                break;
+        }
+    }
+    // else: nocursor -> no selection
+
+    if (pSelection && bRet)
+    {
+        sal_Int32 nCaretPos = GetCaretPos();
+        if( nStart == nCaretPos )
+        {
+            sal_Int32 tmp = nStart;
+            nStart = nEnd;
+            nEnd = tmp;
+        }
+    }
+    return bRet;
+}
+
+sal_Int16 SAL_CALL SwAccessibleParagraph::getAccessibleRole()
+{
+    SolarMutexGuard g;
+
+    //Get the real heading level, Heading1 ~ Heading10
+    if (m_nHeadingLevel > 0)
+    {
+        return AccessibleRole::HEADING;
+    }
+    else
+    {
+        return AccessibleRole::PARAGRAPH;
+    }
+}
+
+//Get the real heading level, Heading1 ~ Heading10
+sal_Int32 SwAccessibleParagraph::GetRealHeadingLevel()
+{
+    uno::Reference< css::beans::XPropertySet > xPortion = CreateUnoPortion( 0, 0 );
+    uno::Any styleAny = xPortion->getPropertyValue( "ParaStyleName" );
+    OUString sValue;
+    if (styleAny >>= sValue)
+    {
+        sal_Int32 length = sValue.getLength();
+        if (length == 9 || length == 10)
+        {
+            if (sValue.startsWith("Heading"))
+            {
+                std::u16string_view intStr = sValue.subView(8);
+                sal_Int32 headingLevel = o3tl::toInt32(intStr);
+                return headingLevel;
+            }
+        }
+    }
+    return -1;
+}
+
+uno::Any SAL_CALL SwAccessibleParagraph::getExtendedAttributes()
+{
+    SolarMutexGuard g;
+
+    uno::Any Ret;
+    OUString strHeading("heading-level:");
+    if( m_nHeadingLevel >= 0 )
+        strHeading += OUString::number(m_nHeadingLevel);
+    // tdf#84102: expose the same attribute with the name "level"
+    strHeading += ";level:";
+    if( m_nHeadingLevel >= 0 )
+        strHeading += OUString::number(m_nHeadingLevel);
+    strHeading += ";";
+
+    Ret <<= strHeading;
+
+    return Ret;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accpara.hxx b/sw/source/core/access/accpara.hxx
new file mode 100644
index 000000000..ade2df47d
--- /dev/null
+++ b/sw/source/core/access/accpara.hxx
@@ -0,0 +1,399 @@
+/* -*- 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 .
+ */
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPARA_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPARA_HXX
+
+#include "acccontext.hxx"
+#include <com/sun/star/accessibility/AccessibleScrollType.hpp>
+#include <com/sun/star/accessibility/XAccessibleEditableText.hpp>
+#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
+#include <com/sun/star/accessibility/XAccessibleHypertext.hpp>
+#include <com/sun/star/accessibility/XAccessibleTextMarkup.hpp>
+#include <com/sun/star/accessibility/XAccessibleMultiLineText.hpp>
+#include <com/sun/star/accessibility/XAccessibleTextSelection.hpp>
+#include <com/sun/star/accessibility/XAccessibleExtendedAttributes.hpp>
+#include <com/sun/star/accessibility/XAccessibleTextAttributes.hpp>
+#include "accselectionhelper.hxx"
+#include <unordered_map>
+#include <svl/lstner.hxx>
+
+class SwTextFrame;
+class SwPaM;
+class SwAccessiblePortionData;
+class SwAccessibleHyperTextData;
+class SwRangeRedline;
+class SwXTextPortion;
+class SwParaChangeTrackingInfo; //#i108125#
+
+namespace com::sun::star {
+    namespace i18n { struct Boundary; }
+    namespace accessibility { class XAccessibleHyperlink; }
+    namespace style { struct TabStop; }
+}
+
+typedef std::unordered_map< OUString,
+                         css::beans::PropertyValue > tAccParaPropValMap;
+
+class SwAccessibleParagraph :
+        public SfxListener,
+        public SwAccessibleContext,
+        public css::accessibility::XAccessibleEditableText,
+        public css::accessibility::XAccessibleSelection,
+        public css::accessibility::XAccessibleHypertext,
+        public css::accessibility::XAccessibleTextMarkup,
+        public css::accessibility::XAccessibleMultiLineText,
+        public css::accessibility::XAccessibleTextAttributes,
+        public css::accessibility::XAccessibleTextSelection,
+        public css::accessibility::XAccessibleExtendedAttributes
+{
+    friend class SwAccessibleHyperlink;
+
+    OUString m_sDesc;  // protected by base classes mutex
+
+    // data for this paragraph's text portions; this contains the
+    // mapping from the core 'model string' to the accessible text
+    // string.
+    // pPortionData may be NULL; it should only be accessed through the
+    // Get/Clear/Has/UpdatePortionData() methods
+    std::unique_ptr<SwAccessiblePortionData> m_pPortionData;
+    std::unique_ptr<SwAccessibleHyperTextData> m_pHyperTextData;
+
+    sal_Int32 m_nOldCaretPos; // The 'old' caret pos. It's only valid as long
+                            // as the cursor is inside this object (protected by
+                            // mutex)
+
+    bool m_bIsHeading;    // protected by base classes mutex
+    sal_Int32 m_nHeadingLevel;
+
+    // implementation for XAccessibleSelection
+    SwAccessibleSelectionHelper m_aSelectionHelper;
+
+    std::unique_ptr<SwParaChangeTrackingInfo> mpParaChangeTrackInfo; // #i108125#
+
+    // XAccessibleComponent
+    bool m_bLastHasSelection;
+
+    /// get the (accessible) text string (requires frame; check before)
+    OUString const & GetString();
+
+    static OUString GetDescription();
+
+    // get the current care position
+    sal_Int32 GetCaretPos();
+
+    // determine the current selection. Fill the values with
+    // -1 if there is no selection in the this paragraph
+    // @param pSelection (optional) check only Nth selection in ring
+    bool GetSelectionAtIndex(sal_Int32 * pSelection, sal_Int32& nStart, sal_Int32& nEnd);
+    bool GetSelection(sal_Int32& nStart, sal_Int32& nEnd) {
+        return GetSelectionAtIndex(nullptr, nStart, nEnd);
+    }
+
+    // helper for GetSelection and getCaretPosition
+    // #i27301# - add parameter <_bForSelection>, which indicates,
+    // if the cursor is retrieved for selection or for caret position.
+    SwPaM* GetCursor( const bool _bForSelection );
+
+    // for cut/copy/paste: execute a particular slot at the view shell
+    void ExecuteAtViewShell( sal_uInt16 nSlot );
+
+    // helper method for get/setAttributes
+    // (for the special case of (nEndIndex==-1) a single character will
+    //  be selected)
+    rtl::Reference<SwXTextPortion> CreateUnoPortion( sal_Int32 nStart, sal_Int32 nEnd );
+
+    // methods for checking the parameter range:
+
+    // does nPos point to a char?
+    static bool IsValidChar(sal_Int32 nPos, sal_Int32 nLength);
+
+    // does nPos point to a position? (may be behind the last character)
+    static bool IsValidPosition(sal_Int32 nPos, sal_Int32 nLength);
+
+    // is nBegin...nEnd a valid range? (nEnd points past the last character)
+    static bool IsValidRange(sal_Int32 nBegin, sal_Int32 nEnd, sal_Int32 nLength);
+
+    // Ensure ordered range (i.e. nBegin is smaller then nEnd)
+    static void OrderRange(sal_Int32& nBegin, sal_Int32& nEnd)
+    {
+        if( nBegin > nEnd )
+        {
+            sal_Int32 nTmp = nBegin; nBegin = nEnd; nEnd = nTmp;
+        }
+    }
+
+    const SwRangeRedline* GetRedlineAtIndex();
+    OUString GetFieldTypeNameAtIndex(sal_Int32 nIndex);
+
+    // #i63870#
+    void _getDefaultAttributesImpl(
+            const css::uno::Sequence< OUString >& aRequestedAttributes,
+            tAccParaPropValMap& rDefAttrSeq,
+            const bool bOnlyCharAttrs = false );
+    void _getRunAttributesImpl(
+            const sal_Int32 nIndex,
+            const css::uno::Sequence< OUString >& aRequestedAttributes,
+            tAccParaPropValMap& rRunAttrSeq );
+
+    void _getSupplementalAttributesImpl(
+            const css::uno::Sequence< OUString >& aRequestedAttributes,
+            tAccParaPropValMap& rSupplementalAttrSeq );
+
+    void _correctValues(
+            const sal_Int32 nIndex,
+            std::vector< css::beans::PropertyValue >& rValues );
+
+public:
+    bool IsHeading() const;
+
+protected:
+
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets MULTILINE(1), MULTISELECTABLE(+),
+    // FOCUSABLE(+) and FOCUSED(+)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    virtual void InvalidateContent_( bool bVisibleDataFired ) override;
+
+    virtual void InvalidateCursorPos_() override;
+    virtual void InvalidateFocus_() override;
+
+    virtual ~SwAccessibleParagraph() override;
+
+    // handling of data for the text portions
+
+    // force update of new portion data
+    /// @throws css::uno::RuntimeException
+    void UpdatePortionData();
+
+    // remove the current portion data
+    void ClearPortionData();
+
+    // get portion data; update if necessary
+    /// @throws css::uno::RuntimeException
+    SwAccessiblePortionData& GetPortionData()
+    {
+        if( m_pPortionData == nullptr )
+            UpdatePortionData();
+        return *m_pPortionData;
+    }
+
+    //helpers for word boundaries
+
+    bool GetCharBoundary( css::i18n::Boundary& rBound,
+                              sal_Int32 nPos );
+    bool GetWordBoundary( css::i18n::Boundary& rBound,
+                              const OUString& rText,
+                              sal_Int32 nPos );
+    bool GetSentenceBoundary( css::i18n::Boundary& rBound,
+                                  const OUString& rText,
+                                  sal_Int32 nPos );
+    bool GetLineBoundary( css::i18n::Boundary& rBound,
+                              const OUString& rText,
+                              sal_Int32 nPos );
+    static bool GetParagraphBoundary( css::i18n::Boundary& rBound,
+                                   const OUString& rText );
+    bool GetAttributeBoundary( css::i18n::Boundary& rBound,
+                                   sal_Int32 nPos );
+    bool GetGlyphBoundary( css::i18n::Boundary& rBound,
+                               const OUString& rText,
+                               sal_Int32 nPos );
+
+    // get boundaries of word/sentence/etc. for specified text type
+    // Does all argument checking, and then delegates to helper methods above.
+    /// @throws css::lang::IndexOutOfBoundsException
+    /// @throws css::lang::IllegalArgumentException
+    /// @throws css::uno::RuntimeException
+    bool GetTextBoundary( css::i18n::Boundary& rBound,
+                              const OUString& rText,
+                              sal_Int32 nPos,
+                              sal_Int16 aTextType );
+
+    virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
+
+public:
+
+    SwAccessibleParagraph( std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                           const SwTextFrame& rTextFrame );
+
+    inline operator css::accessibility::XAccessibleText *();
+
+    virtual bool HasCursor() override;   // required by map to remember that object
+
+    css::uno::Sequence< css::style::TabStop > GetCurrentTabStop( sal_Int32 nIndex  );
+    virtual sal_Int16 SAL_CALL getAccessibleRole() override;
+
+    // XAccessibleContext
+
+    // Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    // Return the parents locale or throw exception if this object has no
+    // parent yet/anymore.
+    virtual css::lang::Locale SAL_CALL
+        getLocale() override;
+
+    // #i27138# - paragraphs are in relation CONTENT_FLOWS_FROM and/or CONTENT_FLOWS_TO
+    virtual css::uno::Reference<
+            css::accessibility::XAccessibleRelationSet> SAL_CALL
+        getAccessibleRelationSet() override;
+
+    // XAccessibleComponent
+
+    virtual void SAL_CALL grabFocus() override;
+    // #i71385#
+    virtual sal_Int32 SAL_CALL getForeground() override;
+    virtual sal_Int32 SAL_CALL getBackground() override;
+
+    // XServiceInfo
+
+    // Returns an identifier for the implementation of this object.
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    // Return whether the specified service is supported by this class.
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    // Returns a list of all supported services.  In this case that is just
+    // the AccessibleContext service.
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XInterface
+
+    // (XInterface methods need to be implemented to disambiguate
+    // between those inherited through SwAccessibleContext and
+    // XAccessibleEditableText).
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        const css::uno::Type& aType ) override;
+
+    virtual void SAL_CALL acquire(  ) noexcept override
+        { SwAccessibleContext::acquire(); };
+
+    virtual void SAL_CALL release(  ) noexcept override
+        { SwAccessibleContext::release(); };
+
+    // XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleText
+    virtual sal_Int32 SAL_CALL getCaretPosition() override;
+    virtual sal_Bool SAL_CALL setCaretPosition( sal_Int32 nIndex ) override;
+    virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) override;
+    virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& aRequestedAttributes ) override;
+    virtual css::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) override;
+    virtual sal_Int32 SAL_CALL getCharacterCount(  ) override;
+    virtual sal_Int32 SAL_CALL getIndexAtPoint( const css::awt::Point& aPoint ) override;
+    virtual OUString SAL_CALL getSelectedText(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectionStart() override;
+    virtual sal_Int32 SAL_CALL getSelectionEnd() override;
+    virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual OUString SAL_CALL getText(  ) override;
+    virtual OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual css::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override;
+    virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual sal_Bool SAL_CALL scrollSubstringTo( sal_Int32 nStartIndex, sal_Int32 nEndIndex, css::accessibility::AccessibleScrollType aScrollType) override;
+
+    // XAccessibleEditableText
+    virtual sal_Bool SAL_CALL cutText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual sal_Bool SAL_CALL pasteText( sal_Int32 nIndex ) override;
+    virtual sal_Bool SAL_CALL deleteText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+    virtual sal_Bool SAL_CALL insertText( const OUString& sText, sal_Int32 nIndex ) override;
+    virtual sal_Bool SAL_CALL replaceText( sal_Int32 nStartIndex, sal_Int32 nEndIndex, const OUString& sReplacement ) override;
+    virtual sal_Bool SAL_CALL setAttributes( sal_Int32 nStartIndex, sal_Int32 nEndIndex, const css::uno::Sequence< css::beans::PropertyValue >& aAttributeSet ) override;
+    virtual sal_Bool SAL_CALL setText( const OUString& sText ) override;
+
+    // XAccessibleSelection
+    virtual void SAL_CALL selectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual sal_Bool SAL_CALL isAccessibleChildSelected(
+        sal_Int32 nChildIndex ) override;
+    virtual void SAL_CALL clearAccessibleSelection(  ) override;
+    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+    virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    // index has to be treated as global child index.
+    virtual void SAL_CALL deselectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    // XAccessibleHypertext
+    virtual sal_Int32 SAL_CALL getHyperLinkCount() override;
+    virtual css::uno::Reference<
+            css::accessibility::XAccessibleHyperlink >
+        SAL_CALL getHyperLink( sal_Int32 nLinkIndex ) override;
+    virtual sal_Int32 SAL_CALL getHyperLinkIndex( sal_Int32 nCharIndex ) override;
+
+    // #i71360#
+    // XAccessibleTextMarkup
+    virtual sal_Int32 SAL_CALL getTextMarkupCount( sal_Int32 nTextMarkupType ) override;
+
+    virtual css::accessibility::TextSegment SAL_CALL
+            getTextMarkup( sal_Int32 nTextMarkupIndex,
+                           sal_Int32 nTextMarkupType ) override;
+
+    virtual css::uno::Sequence< css::accessibility::TextSegment > SAL_CALL
+            getTextMarkupAtIndex( sal_Int32 nCharIndex,
+                                  sal_Int32 nTextMarkupType ) override;
+
+    // XAccessibleTextSelection
+    virtual sal_Bool SAL_CALL scrollToPosition( const css::awt::Point& aPoint, sal_Bool isLeftTop ) override;
+    virtual sal_Int32 SAL_CALL getSelectedPortionCount(  ) override;
+    virtual sal_Int32 SAL_CALL getSeletedPositionStart( sal_Int32 nSelectedPortionIndex ) override;
+    virtual sal_Int32 SAL_CALL getSeletedPositionEnd( sal_Int32 nSelectedPortionIndex ) override;
+    virtual sal_Bool SAL_CALL removeSelection( sal_Int32 selectionIndex ) override;
+    virtual sal_Int32 SAL_CALL  addSelection( sal_Int32 selectionIndex, sal_Int32 startOffset, sal_Int32 endOffset) override;
+    // XAccessibleExtendedAttributes
+    virtual css::uno::Any SAL_CALL getExtendedAttributes() override ;
+    sal_Int32 GetRealHeadingLevel();
+
+    // #i89175#
+    // XAccessibleMultiLineText
+    virtual sal_Int32 SAL_CALL getLineNumberAtIndex( sal_Int32 nIndex ) override;
+
+    virtual css::accessibility::TextSegment SAL_CALL
+            getTextAtLineNumber( sal_Int32 nLineNo ) override;
+
+    virtual css::accessibility::TextSegment SAL_CALL
+            getTextAtLineWithCaret() override;
+
+    virtual sal_Int32 SAL_CALL getNumberOfLineWithCaret() override;
+
+    // #i63870#
+    // XAccessibleTextAttributes
+    virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getDefaultAttributes( const css::uno::Sequence< OUString >& aRequestedAttributes ) override;
+    virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getRunAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& aRequestedAttributes ) override;
+};
+
+inline SwAccessibleParagraph::operator css::accessibility::XAccessibleText *()
+{
+    return static_cast< css::accessibility::XAccessibleEditableText * >( this );
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accportions.cxx b/sw/source/core/access/accportions.cxx
new file mode 100644
index 000000000..186e61124
--- /dev/null
+++ b/sw/source/core/access/accportions.cxx
@@ -0,0 +1,752 @@
+/* -*- 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 <sal/config.h>
+
+#include "accportions.hxx"
+#include <osl/diagnose.h>
+#include <rtl/ustring.hxx>
+#include <com/sun/star/i18n/Boundary.hpp>
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+#include <txttypes.hxx>
+
+// for portion replacement in Special()
+#include <viewopt.hxx>
+
+// for GetWordBoundary(...), GetSentenceBoundary(...):
+#include <breakit.hxx>
+#include <txtfrm.hxx>
+
+// for FillSpecialPos(...)
+#include <crstate.hxx>
+
+using namespace ::com::sun::star;
+
+using i18n::Boundary;
+
+// 'portion type' for terminating portions
+#define POR_TERMINATE PortionType::NONE
+
+// portion attributes
+#define PORATTR_SPECIAL     1
+#define PORATTR_READONLY    2
+#define PORATTR_GRAY        4
+#define PORATTR_TERM        128
+
+/// returns the index of the first position whose value is smaller
+/// or equal, and whose following value is equal or larger
+template<typename T>
+static size_t FindBreak(const std::vector<T>& rPositions, T nValue);
+
+/// like FindBreak, but finds the last equal or larger position
+template<typename T>
+static size_t FindLastBreak(const std::vector<T>& rPositions, T nValue);
+
+
+SwAccessiblePortionData::SwAccessiblePortionData(
+    const SwTextFrame *const pTextFrame,
+    const SwViewOption* pViewOpt ) :
+    m_pTextFrame(pTextFrame),
+    m_nViewPosition( 0 ),
+    m_pViewOptions( pViewOpt ),
+    m_nBeforePortions( 0 ),
+    m_bFinished( false )
+{
+    OSL_ENSURE( m_pTextFrame != nullptr, "Need SwTextFrame!" );
+
+    // reserve some space to reduce memory allocations
+    m_aLineBreaks.reserve( 5 );
+    m_ViewPositions.reserve( 10 );
+    m_aAccessiblePositions.reserve( 10 );
+
+    // always include 'first' line-break position
+    m_aLineBreaks.push_back( 0 );
+}
+
+SwAccessiblePortionData::~SwAccessiblePortionData()
+{
+}
+
+void SwAccessiblePortionData::Text(TextFrameIndex const nLength,
+        PortionType nType, sal_Int32 /*nHeight*/, sal_Int32 /*nWidth*/)
+{
+    OSL_ENSURE((m_nViewPosition + nLength) <= TextFrameIndex(m_pTextFrame->GetText().getLength()),
+                "portion exceeds model string!" );
+
+    OSL_ENSURE( !m_bFinished, "We are already done!" );
+
+    // ignore zero-length portions
+    if (nLength == TextFrameIndex(0))
+        return;
+
+    // store 'old' positions
+    m_ViewPositions.push_back( m_nViewPosition );
+    m_aAccessiblePositions.push_back( m_aBuffer.getLength() );
+
+    // store portion attributes
+    sal_uInt8 nAttr = IsGrayPortionType(nType) ? PORATTR_GRAY : 0;
+    m_aPortionAttrs.push_back( nAttr );
+
+    // update buffer + nViewPosition
+    m_aBuffer.append(m_pTextFrame->GetText().subView(sal_Int32(m_nViewPosition), sal_Int32(nLength)));
+    m_nViewPosition += nLength;
+}
+
+void SwAccessiblePortionData::Special(
+    TextFrameIndex const nLength, const OUString& rText, PortionType nType,
+    sal_Int32 /*nHeight*/, sal_Int32 /*nWidth*/, const SwFont* /*pFont*/)
+{
+    OSL_ENSURE(m_nViewPosition >= TextFrameIndex(0), "illegal position");
+    OSL_ENSURE((m_nViewPosition + nLength) <= TextFrameIndex(m_pTextFrame->GetText().getLength()),
+                "portion exceeds model string!" );
+
+    OSL_ENSURE( !m_bFinished, "We are already done!" );
+
+    // construct string with representation; either directly from
+    // rText, or use resources for special case portions
+    OUString sDisplay;
+    switch( nType )
+    {
+        case PortionType::PostIts:
+        case PortionType::FlyCnt:
+            sDisplay = OUString(u'\xfffc');
+            break;
+        case PortionType::Field:
+        case PortionType::Hidden:
+        case PortionType::Combined:
+        case PortionType::IsoRef:
+            // When the field content is empty, input a special character.
+            if (rText.isEmpty())
+                sDisplay = OUString(u'\xfffc');
+            else
+                sDisplay = rText;
+            m_aFieldPosition.push_back(m_aBuffer.getLength());
+            m_aFieldPosition.push_back(m_aBuffer.getLength() + rText.getLength());
+            break;
+        case PortionType::FootnoteNum:
+            break;
+        case PortionType::Footnote:
+            {
+                sDisplay = rText;
+                sal_Int32 nStart=m_aBuffer.getLength();
+                sal_Int32 nEnd=nStart + rText.getLength();
+                m_vecPairPos.emplace_back(nStart,nEnd);
+                break;
+            }
+            break;
+        case PortionType::Number:
+        case PortionType::Bullet:
+            sDisplay = rText + " ";
+            break;
+        // There should probably be some special treatment to graphical bullets
+        case PortionType::GrfNum:
+            break;
+        // #i111768# - apply patch from kstribley:
+        // Include the control characters.
+        case PortionType::ControlChar:
+            sDisplay = rText + OUStringChar(m_pTextFrame->GetText()[sal_Int32(m_nViewPosition)]);
+            break;
+        case PortionType::Bookmark:
+            // TODO
+            break;
+        default:
+            sDisplay = rText;
+            break;
+    }
+
+    // ignore zero/zero portions (except for terminators)
+    if ((nLength == TextFrameIndex(0)) && (sDisplay.getLength() == 0) && (nType != POR_TERMINATE))
+        return;
+
+    // special treatment for zero length portion at the beginning:
+    // count as 'before' portion
+    if ((nLength == TextFrameIndex(0)) && (m_nViewPosition == TextFrameIndex(0)))
+        m_nBeforePortions++;
+
+    // store the 'old' positions
+    m_ViewPositions.push_back( m_nViewPosition );
+    m_aAccessiblePositions.push_back( m_aBuffer.getLength() );
+
+    // store portion attributes
+    sal_uInt8 nAttr = PORATTR_SPECIAL;
+    if( IsGrayPortionType(nType) )      nAttr |= PORATTR_GRAY;
+    if (nLength == TextFrameIndex(0))   nAttr |= PORATTR_READONLY;
+    if( nType == POR_TERMINATE )        nAttr |= PORATTR_TERM;
+    m_aPortionAttrs.push_back( nAttr );
+
+    // update buffer + nViewPosition
+    m_aBuffer.append( sDisplay );
+    m_nViewPosition += nLength;
+}
+
+void SwAccessiblePortionData::LineBreak(sal_Int32 /*nWidth*/)
+{
+    OSL_ENSURE( !m_bFinished, "We are already done!" );
+
+    m_aLineBreaks.push_back( m_aBuffer.getLength() );
+}
+
+void SwAccessiblePortionData::Skip(TextFrameIndex const nLength)
+{
+    OSL_ENSURE( !m_bFinished, "We are already done!" );
+    OSL_ENSURE( m_ViewPositions.empty(), "Never Skip() after portions" );
+    OSL_ENSURE(nLength <= TextFrameIndex(m_pTextFrame->GetText().getLength()),
+            "skip exceeds model string!" );
+
+    m_nViewPosition += nLength;
+}
+
+void SwAccessiblePortionData::Finish()
+{
+    OSL_ENSURE( !m_bFinished, "We are already done!" );
+
+    // include terminator values: always include two 'last character'
+    // markers in the position arrays to make sure we always find one
+    // position before the end
+    Special( TextFrameIndex(0), OUString(), POR_TERMINATE );
+    Special( TextFrameIndex(0), OUString(), POR_TERMINATE );
+    LineBreak(0);
+    LineBreak(0);
+
+    m_sAccessibleString = m_aBuffer.makeStringAndClear();
+    m_bFinished = true;
+}
+
+bool SwAccessiblePortionData::IsPortionAttrSet(
+    size_t nPortionNo, sal_uInt8 nAttr ) const
+{
+    OSL_ENSURE( nPortionNo < m_aPortionAttrs.size(),
+                "Illegal portion number" );
+    return (m_aPortionAttrs[nPortionNo] & nAttr) != 0;
+}
+
+bool SwAccessiblePortionData::IsSpecialPortion( size_t nPortionNo ) const
+{
+    return IsPortionAttrSet(nPortionNo, PORATTR_SPECIAL);
+}
+
+bool SwAccessiblePortionData::IsGrayPortionType( PortionType nType ) const
+{
+    // gray portions?
+    // Compare with: inftxt.cxx, SwTextPaintInfo::DrawViewOpt(...)
+    bool bGray = false;
+    switch( nType )
+    {
+        case PortionType::Footnote:
+        case PortionType::IsoRef:
+        case PortionType::Ref:
+        case PortionType::QuoVadis:
+        case PortionType::Number:
+        case PortionType::Field:
+        case PortionType::InputField:
+        case PortionType::IsoTox:
+        case PortionType::Tox:
+        case PortionType::Hidden:
+            bGray = !m_pViewOptions->IsPagePreview() &&
+                !m_pViewOptions->IsReadonly() && SwViewOption::IsFieldShadings();
+            break;
+        case PortionType::Tab:       bGray = m_pViewOptions->IsTab();          break;
+        case PortionType::SoftHyphen:  bGray = m_pViewOptions->IsSoftHyph();     break;
+        case PortionType::Blank:     bGray = m_pViewOptions->IsHardBlank();    break;
+        default:
+            break; // bGray is false
+    }
+    return bGray;
+}
+
+const OUString& SwAccessiblePortionData::GetAccessibleString() const
+{
+    OSL_ENSURE( m_bFinished, "Shouldn't call this before we are done!" );
+
+    return m_sAccessibleString;
+}
+
+void SwAccessiblePortionData::GetLineBoundary(
+    Boundary& rBound,
+    sal_Int32 nPos ) const
+{
+    FillBoundary( rBound, m_aLineBreaks,
+                  FindBreak( m_aLineBreaks, nPos ) );
+}
+
+// #i89175#
+sal_Int32 SwAccessiblePortionData::GetLineCount() const
+{
+    size_t nBreaks = m_aLineBreaks.size();
+    // A non-empty paragraph has at least 4 breaks: one for each line3 and
+    // 3 additional ones.
+    // An empty paragraph has 3 breaks.
+    // Less than 3 breaks is an error case.
+    sal_Int32 nLineCount = ( nBreaks > 3 )
+                           ? nBreaks - 3
+                           : ( ( nBreaks == 3 ) ? 1 : 0 );
+    return nLineCount;
+}
+
+sal_Int32 SwAccessiblePortionData::GetLineNo( const sal_Int32 nPos ) const
+{
+    sal_Int32 nLineNo = FindBreak( m_aLineBreaks, nPos );
+
+    // handling of position after last character
+    const sal_Int32 nLineCount( GetLineCount() );
+    if ( nLineNo >= nLineCount )
+    {
+        nLineNo = nLineCount - 1;
+    }
+
+    return nLineNo;
+}
+
+void SwAccessiblePortionData::GetBoundaryOfLine( const sal_Int32 nLineNo,
+                                                 i18n::Boundary& rLineBound )
+{
+    FillBoundary( rLineBound, m_aLineBreaks, nLineNo );
+}
+
+void SwAccessiblePortionData::GetLastLineBoundary(
+    Boundary& rBound ) const
+{
+    OSL_ENSURE( m_aLineBreaks.size() >= 2, "need min + max value" );
+
+    // The last two positions except the two delimiters are the ones
+    // we are looking for, except for empty paragraphs (nBreaks==3)
+    size_t nBreaks = m_aLineBreaks.size();
+    FillBoundary( rBound, m_aLineBreaks, nBreaks <= 3 ? 0 : nBreaks-4 );
+}
+
+TextFrameIndex SwAccessiblePortionData::GetCoreViewPosition(sal_Int32 const nPos) const
+{
+    OSL_ENSURE( nPos >= 0, "illegal position" );
+    OSL_ENSURE( nPos <= m_sAccessibleString.getLength(), "illegal position" );
+
+    // find the portion number
+    size_t nPortionNo = FindBreak( m_aAccessiblePositions, nPos );
+
+    // get core view portion size
+    TextFrameIndex nStartPos = m_ViewPositions[nPortionNo];
+
+    // if it's a non-special portion, move into the portion, else
+    // return the portion start
+    if( ! IsSpecialPortion( nPortionNo ) )
+    {
+        // text portions have to be of the same width
+        OSL_ENSURE( sal_Int32(m_ViewPositions[nPortionNo+1] - nStartPos) ==
+                    ( m_aAccessiblePositions[nPortionNo+1] -
+                      m_aAccessiblePositions[nPortionNo] ),
+                    "accessibility portion disagrees with text model" );
+
+        nStartPos += TextFrameIndex(nPos - m_aAccessiblePositions[nPortionNo]);
+    }
+    // else: return nStartPos unmodified
+
+    OSL_ENSURE(nStartPos >= TextFrameIndex(0), "There's something weird in number of characters of SwTextFrame");
+    return nStartPos;
+}
+
+void SwAccessiblePortionData::FillBoundary(
+    Boundary& rBound,
+    const AccessiblePositions& rPositions,
+    size_t nPos )
+{
+    rBound.startPos = rPositions[nPos];
+    rBound.endPos = rPositions[nPos+1];
+}
+
+template<typename T>
+static size_t FindBreak(const std::vector<T>& rPositions, T const nValue)
+{
+    OSL_ENSURE( rPositions.size() >= 2, "need min + max value" );
+    OSL_ENSURE( rPositions[0] <= nValue, "need min value" );
+    OSL_ENSURE( rPositions[rPositions.size()-1] >= nValue,
+                "need first terminator value" );
+    OSL_ENSURE( rPositions[rPositions.size()-2] >= nValue,
+                "need second terminator value" );
+
+    size_t nMin = 0;
+    size_t nMax = rPositions.size()-2;
+
+    // loop until no more than two candidates are left
+    while( nMin+1 < nMax )
+    {
+        // check loop invariants
+        OSL_ENSURE( ( (nMin == 0) && (rPositions[nMin] <= nValue) ) ||
+                    ( (nMin != 0) && (rPositions[nMin] < nValue) ),
+                    "minvalue not minimal" );
+        OSL_ENSURE( nValue <= rPositions[nMax], "max value not maximal" );
+
+        // get middle (and ensure progress)
+        size_t nMiddle = (nMin + nMax)/2;
+        OSL_ENSURE( nMin < nMiddle, "progress?" );
+        OSL_ENSURE( nMiddle < nMax, "progress?" );
+
+        // check array
+        OSL_ENSURE( rPositions[nMin] <= rPositions[nMiddle],
+                    "garbled positions array" );
+        OSL_ENSURE( rPositions[nMiddle] <= rPositions[nMax],
+                    "garbled positions array" );
+
+        if( nValue > rPositions[nMiddle] )
+            nMin = nMiddle;
+        else
+            nMax = nMiddle;
+    }
+
+    // only two are left; we only need to check which one is the winner
+    OSL_ENSURE( (nMax == nMin) || (nMax == nMin+1), "only two left" );
+    if( (rPositions[nMin] < nValue) && (rPositions[nMin+1] <= nValue) )
+        nMin = nMin+1;
+
+    // finally, check to see whether the returned value is the 'right' position
+    OSL_ENSURE( rPositions[nMin] <= nValue, "not smaller or equal" );
+    OSL_ENSURE( nValue <= rPositions[nMin+1], "not equal or larger" );
+    OSL_ENSURE( (nMin == 0) || (rPositions[nMin-1] <= nValue),
+                "earlier value should have been returned" );
+
+    OSL_ENSURE( nMin < rPositions.size()-1,
+                "shouldn't return last position (due to terminator values)" );
+
+    return nMin;
+}
+
+template<typename T>
+static size_t FindLastBreak(const std::vector<T>& rPositions, T const nValue)
+{
+    size_t nResult = FindBreak( rPositions, nValue );
+
+    // skip 'zero-length' portions
+    // #i70538# consider size of <rPosition> and ignore last entry
+    while ( nResult < rPositions.size() - 2 &&
+            rPositions[nResult+1] <= nValue )
+    {
+        nResult++;
+    }
+
+    return nResult;
+}
+
+void SwAccessiblePortionData::GetSentenceBoundary(
+    Boundary& rBound,
+    sal_Int32 nPos )
+{
+    OSL_ENSURE( nPos >= 0, "illegal position; check before" );
+    OSL_ENSURE( nPos < m_sAccessibleString.getLength(), "illegal position" );
+
+    if( m_pSentences == nullptr )
+    {
+        assert(g_pBreakIt && g_pBreakIt->GetBreakIter().is());
+
+        m_pSentences.reset(new AccessiblePositions);
+        m_pSentences->reserve(10);
+
+        // use xBreak->endOfSentence to iterate over all words; store
+        // positions in pSentences
+        sal_Int32 nCurrent = 0;
+        sal_Int32 nLength = m_sAccessibleString.getLength();
+        do
+        {
+            m_pSentences->push_back( nCurrent );
+
+            const TextFrameIndex nFramePos = GetCoreViewPosition(nCurrent);
+
+            sal_Int32 nNew = g_pBreakIt->GetBreakIter()->endOfSentence(
+                m_sAccessibleString, nCurrent,
+                g_pBreakIt->GetLocale(m_pTextFrame->GetLangOfChar(nFramePos, 0, true))) + 1;
+
+            if( (nNew < 0) && (nNew > nLength) )
+                nNew = nLength;
+            else if (nNew <= nCurrent)
+                nNew = nCurrent + 1;   // ensure forward progress
+
+            nCurrent = nNew;
+        }
+        while (nCurrent < nLength);
+
+        // finish with two terminators
+        m_pSentences->push_back( nLength );
+        m_pSentences->push_back( nLength );
+    }
+
+    FillBoundary( rBound, *m_pSentences, FindBreak( *m_pSentences, nPos ) );
+}
+
+void SwAccessiblePortionData::GetAttributeBoundary(
+    Boundary& rBound,
+    sal_Int32 nPos) const
+{
+    OSL_ENSURE( m_pTextFrame != nullptr, "Need SwTextNode!" );
+
+    // attribute boundaries can only occur on portion boundaries
+    FillBoundary( rBound, m_aAccessiblePositions,
+                  FindBreak( m_aAccessiblePositions, nPos ) );
+}
+
+sal_Int32 SwAccessiblePortionData::GetAccessiblePosition(TextFrameIndex const nPos) const
+{
+    OSL_ENSURE(nPos <= TextFrameIndex(m_pTextFrame->GetText().getLength()), "illegal position");
+
+    // find the portion number
+    // #i70538# - consider "empty" model portions - e.g. number portion
+    size_t nPortionNo = FindLastBreak( m_ViewPositions, nPos );
+
+    sal_Int32 nRet = m_aAccessiblePositions[nPortionNo];
+
+    // if the view portion has more than one position, go into it;
+    // else return that position
+    TextFrameIndex nStartPos = m_ViewPositions[nPortionNo];
+    TextFrameIndex nEndPos = m_ViewPositions[nPortionNo+1];
+    if (!IsSpecialPortion(nPortionNo))
+    {
+        // text portions have to be of the same width
+        OSL_ENSURE( sal_Int32(nEndPos - nStartPos) ==
+                    ( m_aAccessiblePositions[nPortionNo+1] -
+                      m_aAccessiblePositions[nPortionNo] ),
+                    "accessibility portion disagrees with text model" );
+
+        TextFrameIndex nWithinPortion = nPos - m_ViewPositions[nPortionNo];
+        nRet += sal_Int32(nWithinPortion);
+    }
+    // else: return nRet unmodified
+
+    OSL_ENSURE( (nRet >= 0) && (nRet <= m_sAccessibleString.getLength()),
+                "too long!" );
+    return nRet;
+}
+
+TextFrameIndex SwAccessiblePortionData::FillSpecialPos(
+    sal_Int32 nPos,
+    SwSpecialPos& rPos,
+    SwSpecialPos*& rpPos ) const
+{
+    size_t nPortionNo = FindLastBreak( m_aAccessiblePositions, nPos );
+
+    SwSPExtendRange nExtend(SwSPExtendRange::NONE);
+    sal_Int32 nRefPos(0);
+    TextFrameIndex nCorePos(0);
+
+    if( nPortionNo < m_nBeforePortions )
+    {
+        nExtend = SwSPExtendRange::BEFORE;
+        rpPos = &rPos;
+    }
+    else
+    {
+        TextFrameIndex nCoreEndPos = m_ViewPositions[nPortionNo+1];
+        nCorePos = m_ViewPositions[nPortionNo];
+
+        // skip backwards over zero-length portions, since GetCharRect()
+        // counts all model-zero-length portions as belonging to the
+        // previous portion
+        size_t nCorePortionNo = nPortionNo;
+        while (nCorePos == nCoreEndPos)
+        {
+            nCorePortionNo--;
+            nCoreEndPos = nCorePos;
+            nCorePos = m_ViewPositions[nCorePortionNo];
+
+            OSL_ENSURE( nCorePos >= TextFrameIndex(0), "Can't happen." );
+            OSL_ENSURE( nCorePortionNo >= m_nBeforePortions, "Can't happen." );
+        }
+        OSL_ENSURE( nCorePos != nCoreEndPos,
+                    "portion with core-representation expected" );
+
+        // if we have anything except plain text, compute nExtend + nRefPos
+        if (IsSpecialPortion(nCorePortionNo))
+        {
+            // case 1: a non-text portion
+            // reference position is the first accessibility for our
+            // core portion
+            nRefPos = m_aAccessiblePositions[ nCorePortionNo ];
+            nExtend = SwSPExtendRange::NONE;
+            rpPos = &rPos;
+        }
+        else if(nPortionNo != nCorePortionNo)
+        {
+            // case 2: a multi-character (text!) portion, followed by
+            // zero-length portions
+            // reference position is the first character of the next
+            // portion, and we are 'behind'
+            nRefPos = m_aAccessiblePositions[ nCorePortionNo+1 ];
+            nExtend = SwSPExtendRange::BEHIND;
+            rpPos = &rPos;
+        }
+        else
+        {
+            // case 3: regular text portion
+            OSL_ENSURE( sal_Int32(nCoreEndPos - nCorePos) ==
+                        ( m_aAccessiblePositions[nPortionNo+1] -
+                          m_aAccessiblePositions[nPortionNo] ),
+                        "text portion expected" );
+
+            nCorePos += TextFrameIndex(nPos - m_aAccessiblePositions[nPortionNo]);
+            rpPos = nullptr;
+        }
+    }
+    if( rpPos != nullptr )
+    {
+        OSL_ENSURE( rpPos == &rPos, "Yes!" );
+        OSL_ENSURE( nRefPos <= nPos, "wrong reference" );
+
+        // get the line number, and adjust nRefPos for the line
+        // (if necessary)
+        size_t nRefLine = FindBreak( m_aLineBreaks, nRefPos );
+        size_t nMyLine  = FindBreak( m_aLineBreaks, nPos );
+        sal_uInt16 nLineOffset = o3tl::narrowing<sal_uInt16>( nMyLine - nRefLine );
+        if( nLineOffset != 0 )
+            nRefPos = m_aLineBreaks[ nMyLine ];
+
+        // fill char offset and 'special position'
+        rPos.nCharOfst = nPos - nRefPos;
+        rPos.nExtendRange = nExtend;
+        rPos.nLineOfst = nLineOffset;
+    }
+
+    return nCorePos;
+}
+
+bool SwAccessiblePortionData::FillBoundaryIFDateField( css::i18n::Boundary& rBound, const sal_Int32 nPos )
+{
+    if( m_aFieldPosition.size() < 2 )
+        return false;
+    for( size_t i = 0; i < m_aFieldPosition.size() - 1; i += 2 )
+    {
+        if( nPos < m_aFieldPosition[ i + 1 ]  &&  nPos >= m_aFieldPosition[ i ] )
+        {
+            rBound.startPos = m_aFieldPosition[i];
+            rBound.endPos =  m_aFieldPosition[i + 1];
+            return true;
+        }
+    }
+    return false;
+}
+
+void SwAccessiblePortionData::AdjustAndCheck(
+    sal_Int32 nPos,
+    size_t& nPortionNo,
+    TextFrameIndex& rCorePos,
+    bool& bEdit) const
+{
+    // find portion and get mode position
+    nPortionNo = FindBreak( m_aAccessiblePositions, nPos );
+    rCorePos = m_ViewPositions[ nPortionNo ];
+
+    // for special portions, make sure we're on a portion boundary
+    // for text portions, add the in-portion offset
+    if( IsSpecialPortion( nPortionNo ) )
+        bEdit &= nPos == m_aAccessiblePositions[nPortionNo];
+    else
+        rCorePos += TextFrameIndex(nPos - m_aAccessiblePositions[nPortionNo]);
+}
+
+bool SwAccessiblePortionData::GetEditableRange(
+    sal_Int32 nStart, sal_Int32 nEnd,
+    TextFrameIndex& rCoreStart, TextFrameIndex& rCoreEnd) const
+{
+    bool bIsEditable = true;
+
+    // get start and end portions
+    size_t nStartPortion, nEndPortion;
+    AdjustAndCheck( nStart, nStartPortion, rCoreStart, bIsEditable );
+    AdjustAndCheck( nEnd,   nEndPortion,   rCoreEnd,   bIsEditable );
+
+    // iterate over portions, and make sure there is no read-only portion
+    // in-between
+    size_t nLastPortion = nEndPortion;
+
+    // don't count last portion if we're in front of a special portion
+    if( IsSpecialPortion(nLastPortion) )
+    {
+        if (nLastPortion > 0)
+            nLastPortion--;
+        else
+            // special case: because size_t is usually unsigned, we can't just
+            // decrease nLastPortion to -1 (which would normally do the job, so
+            // this whole if wouldn't be needed). Instead, we'll do this
+            // special case and just increase the start portion beyond the last
+            // portion to make sure the loop below will have zero iteration.
+            nStartPortion = nLastPortion + 1;
+    }
+
+    for( size_t nPor = nStartPortion; nPor <= nLastPortion; nPor++ )
+    {
+        bIsEditable &= ! IsPortionAttrSet(nPor, PORATTR_READONLY);
+    }
+
+    return bIsEditable;
+}
+
+bool SwAccessiblePortionData::IsValidCorePosition(TextFrameIndex const nPos) const
+{
+    // a position is valid if it's within the core view positions that we know
+    return (m_ViewPositions[0] <= nPos) && (nPos <= m_ViewPositions.back());
+}
+
+bool SwAccessiblePortionData::IsZeroCorePositionData()
+{
+    if (m_ViewPositions.empty()) return true;
+    return m_ViewPositions[0] == TextFrameIndex(0)
+        && m_ViewPositions.back() == TextFrameIndex(0);
+}
+
+bool SwAccessiblePortionData::IsIndexInFootnode(sal_Int32 nIndex)
+{
+    for (const auto & pairPos : m_vecPairPos)
+    {
+        if(nIndex >= pairPos.first && nIndex < pairPos.second )
+        {
+            return true;
+        }
+    }
+    return false;
+}
+
+bool SwAccessiblePortionData::IsInGrayPortion( sal_Int32 nPos )
+{
+//    return IsGrayPortion( FindBreak( aAccessiblePositions, nPos ) );
+    return IsPortionAttrSet( FindBreak( m_aAccessiblePositions, nPos ),
+                             PORATTR_GRAY );
+}
+
+sal_Int32 SwAccessiblePortionData::GetFieldIndex(sal_Int32 nPos) const
+{
+    sal_Int32 nIndex = -1;
+    if( m_aFieldPosition.size() >= 2 )
+    {
+        for( size_t i = 0; i < m_aFieldPosition.size() - 1; i += 2 )
+        {
+            if( nPos <= m_aFieldPosition[ i + 1 ]  &&  nPos >= m_aFieldPosition[ i ] )
+            {
+                nIndex = i/2;
+                break;
+            }
+        }
+    }
+    return nIndex;
+}
+
+TextFrameIndex SwAccessiblePortionData::GetFirstValidCorePosition() const
+{
+    return m_ViewPositions[0];
+}
+
+TextFrameIndex SwAccessiblePortionData::GetLastValidCorePosition() const
+{
+    return m_ViewPositions.back();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accportions.hxx b/sw/source/core/access/accportions.hxx
new file mode 100644
index 000000000..5598699a6
--- /dev/null
+++ b/sw/source/core/access/accportions.hxx
@@ -0,0 +1,171 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPORTIONS_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPORTIONS_HXX
+
+#include <SwPortionHandler.hxx>
+#include <sal/types.h>
+#include <rtl/ustrbuf.hxx>
+#include <memory>
+#include <vector>
+
+class SwTextFrame;
+struct SwSpecialPos;
+class SwViewOption;
+namespace com::sun::star {
+    namespace i18n { struct Boundary; }
+}
+
+/**
+ * collect text portion data from the layout through SwPortionHandler interface
+ */
+class SwAccessiblePortionData : public SwPortionHandler
+{
+    // the frame this portion is referring to
+    SwTextFrame const* m_pTextFrame;
+
+    // variables used while collecting the data
+    OUStringBuffer m_aBuffer;
+    TextFrameIndex m_nViewPosition;
+    const SwViewOption* m_pViewOptions;
+
+    /// the accessible string
+    /// note that the content is different both from the string in the text
+    /// node(s) as well as the string in the text frame, so there are 3
+    /// different index spaces involved.
+    OUString m_sAccessibleString;
+
+    // positions array
+    // instances of Position_t must always include the minimum and
+    // maximum positions as first/last elements (to simplify the
+    // algorithms)
+    typedef std::vector<sal_Int32> AccessiblePositions;
+    typedef std::vector<TextFrameIndex> FramePositions;
+
+    AccessiblePositions m_aLineBreaks; /// position of line breaks
+    FramePositions m_ViewPositions; /// position of portion breaks in the core view
+    AccessiblePositions m_aAccessiblePositions; /// portion breaks in m_sAccessibleString
+    AccessiblePositions m_aFieldPosition;
+
+    std::vector<sal_uInt8> m_aPortionAttrs;   /// additional portion attributes
+
+    std::unique_ptr<AccessiblePositions> m_pSentences; /// positions of sentence breaks
+
+    size_t m_nBeforePortions;     /// # of portions before first core character
+    bool m_bFinished;
+
+    /// fill the boundary with the values from rPositions[nPos]
+    static void FillBoundary(css::i18n::Boundary& rBound,
+                      const AccessiblePositions& rPositions,
+                      size_t nPos );
+
+    /// Access to portion attributes
+    bool IsPortionAttrSet( size_t nPortionNo, sal_uInt8 nAttr ) const;
+    bool IsSpecialPortion( size_t nPortionNo ) const;
+    bool IsGrayPortionType( PortionType nType ) const;
+
+    // helper method for GetEditableRange(...):
+    void AdjustAndCheck( sal_Int32 nPos, size_t& nPortionNo,
+                         TextFrameIndex& rCorePos, bool& bEdit) const;
+
+public:
+    SwAccessiblePortionData( const SwTextFrame* pTextFrame,
+                             const SwViewOption* pViewOpt );
+    virtual ~SwAccessiblePortionData() override;
+
+    // SwPortionHandler methods
+    virtual void Text(TextFrameIndex nLength, PortionType nType, sal_Int32 nHeight = 0, sal_Int32 nWidth = 0) override;
+    virtual void Special(TextFrameIndex nLength, const OUString& rText, PortionType nType, sal_Int32 nHeight = 0, sal_Int32 nWidth = 0, const SwFont* pFont = nullptr) override;
+    virtual void LineBreak(sal_Int32 nWidth) override;
+    virtual void Skip(TextFrameIndex nLength) override;
+    virtual void Finish() override;
+
+    bool FillBoundaryIFDateField( css::i18n::Boundary& rBound, const sal_Int32 nPos );
+    bool IsIndexInFootnode(sal_Int32 nIndex);
+    bool IsInGrayPortion( sal_Int32 nPos );
+    sal_Int32 GetFieldIndex(sal_Int32 nPos) const;
+
+    bool IsZeroCorePositionData();
+
+    // access to the portion data
+
+    /// get the text string, as presented by the layout
+    const OUString& GetAccessibleString() const;
+
+    /// get the start & end positions of the sentence
+    void GetLineBoundary( css::i18n::Boundary& rBound,
+                          sal_Int32 nPos ) const;
+
+    // get start and end position of the last line
+    void GetLastLineBoundary( css::i18n::Boundary& rBound ) const;
+
+    /// Determine whether this core position is valid for these portions.
+    /// (A paragraph may be split into several frames, e.g. at page
+    ///  boundaries. In this case, only part of a paragraph is represented
+    ///  through this object. This method determines whether one particular
+    ///  position is valid for this object or not.)
+    bool IsValidCorePosition(TextFrameIndex nPos) const;
+    TextFrameIndex GetFirstValidCorePosition() const;
+    TextFrameIndex GetLastValidCorePosition() const;
+
+    /// get the position in the accessibility string for a given view position
+    sal_Int32 GetAccessiblePosition(TextFrameIndex nPos) const;
+
+    // #i89175#
+    sal_Int32 GetLineCount() const;
+    sal_Int32 GetLineNo( const sal_Int32 nPos ) const;
+    void GetBoundaryOfLine( const sal_Int32 nLineNo,
+                            css::i18n::Boundary& rLineBound );
+
+    /// get the position in the core view string for a given
+    /// (accessibility) position
+    TextFrameIndex GetCoreViewPosition(sal_Int32 nPos) const;
+
+    /// fill a SwSpecialPos structure, suitable for calling
+    /// SwTextFrame->GetCharRect
+    /// Returns the core position, and fills rpPos either with NULL or
+    /// with the &rPos, after putting the appropriate data into it.
+    TextFrameIndex FillSpecialPos(sal_Int32 nPos,
+                           SwSpecialPos& rPos,
+                           SwSpecialPos*& rpPos ) const;
+
+    // get boundaries of words/sentences. The data structures are
+    // created on-demand.
+    void GetSentenceBoundary( css::i18n::Boundary& rBound,
+                              sal_Int32 nPos );
+
+    // get (a) boundary for attribute change
+    void GetAttributeBoundary( css::i18n::Boundary& rBound,
+                               sal_Int32 nPos ) const;
+
+    /// Convert start and end positions into core positions.
+    /// @returns true if 'special' portions are included either completely
+    ///          or not at all. This can be used to test whether editing
+    ///          that range would be legal
+    bool GetEditableRange( sal_Int32 nStart, sal_Int32 nEnd,
+           TextFrameIndex& rCoreStart, TextFrameIndex& rCoreEnd) const;
+
+private:
+    std::vector< std::pair<sal_Int32,sal_Int32> > m_vecPairPos;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accpreview.cxx b/sw/source/core/access/accpreview.cxx
new file mode 100644
index 000000000..503cc543e
--- /dev/null
+++ b/sw/source/core/access/accpreview.cxx
@@ -0,0 +1,76 @@
+/* -*- 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 <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <strings.hrc>
+#include "accpreview.hxx"
+
+constexpr OUStringLiteral sImplementationName
+    = u"com.sun.star.comp.Writer.SwAccessibleDocumentPageView";
+
+using ::com::sun::star::uno::Sequence;
+
+SwAccessiblePreview::SwAccessiblePreview(std::shared_ptr<SwAccessibleMap> const& pMap)
+    : SwAccessibleDocumentBase(pMap)
+{
+    SetName( GetResource( STR_ACCESS_PREVIEW_DOC_NAME ) );
+}
+
+SwAccessiblePreview::~SwAccessiblePreview()
+{
+}
+
+OUString SwAccessiblePreview::getImplementationName( )
+{
+    return sImplementationName;
+}
+
+sal_Bool SwAccessiblePreview::supportsService( const OUString& rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+Sequence<OUString> SwAccessiblePreview::getSupportedServiceNames( )
+{
+    return {"com.sun.star.text.AccessibleTextDocumentPageView",
+            sAccessibleServiceName};
+}
+
+Sequence< sal_Int8 > SAL_CALL SwAccessiblePreview::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+OUString SAL_CALL SwAccessiblePreview::getAccessibleDescription()
+{
+    return GetResource( STR_ACCESS_PREVIEW_DOC_NAME );
+}
+
+OUString SAL_CALL SwAccessiblePreview::getAccessibleName()
+{
+    return SwAccessibleDocumentBase::getAccessibleName() + " " + GetResource( STR_ACCESS_PREVIEW_DOC_SUFFIX );
+}
+
+void SwAccessiblePreview::InvalidateFocus_()
+{
+    FireStateChangedEvent( css::accessibility::AccessibleStateType::FOCUSED, true );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accpreview.hxx b/sw/source/core/access/accpreview.hxx
new file mode 100644
index 000000000..a60254f6a
--- /dev/null
+++ b/sw/source/core/access/accpreview.hxx
@@ -0,0 +1,68 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPREVIEW_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCPREVIEW_HXX
+
+#include "accdoc.hxx"
+
+/**
+ * accessibility implementation for the page preview.
+ * The children of the page preview are the pages that are visible in the
+ * preview.
+ *
+ * The vast majority of the implementation logic is inherited from
+ * SwAccessibleDocumentBase.
+ */
+class SwAccessiblePreview : public  SwAccessibleDocumentBase
+{
+    virtual ~SwAccessiblePreview() override;
+
+public:
+    SwAccessiblePreview(std::shared_ptr<SwAccessibleMap> const& pMap);
+
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object.
+    */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class.
+    */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service.
+    */
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    OUString SAL_CALL getAccessibleDescription() override;
+    OUString SAL_CALL getAccessibleName() override;
+    virtual void InvalidateFocus_() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accselectionhelper.cxx b/sw/source/core/access/accselectionhelper.cxx
new file mode 100644
index 000000000..96a622ece
--- /dev/null
+++ b/sw/source/core/access/accselectionhelper.cxx
@@ -0,0 +1,341 @@
+/* -*- 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 <com/sun/star/accessibility/XAccessibleSelection.hpp>
+#include "accselectionhelper.hxx"
+
+#include "acccontext.hxx"
+#include <accmap.hxx>
+#include <o3tl/safeint.hxx>
+#include <svx/AccessibleShape.hxx>
+#include <viewsh.hxx>
+#include <fesh.hxx>
+#include <vcl/svapp.hxx>
+#include <flyfrm.hxx>
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/XAccessibleStateSet.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <fmtanchr.hxx>
+
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+using ::com::sun::star::accessibility::XAccessible;
+using ::com::sun::star::accessibility::XAccessibleContext;
+using ::com::sun::star::accessibility::XAccessibleSelection;
+
+using namespace ::sw::access;
+
+SwAccessibleSelectionHelper::SwAccessibleSelectionHelper(
+    SwAccessibleContext& rContext ) :
+        m_rContext( rContext )
+{
+}
+
+SwFEShell* SwAccessibleSelectionHelper::GetFEShell()
+{
+    OSL_ENSURE( m_rContext.GetMap() != nullptr, "no map?" );
+    SwViewShell* pViewShell = m_rContext.GetMap()->GetShell();
+    OSL_ENSURE( pViewShell != nullptr,
+                "No view shell? Then what are you looking at?" );
+
+    SwFEShell* pFEShell = dynamic_cast<SwFEShell*>( pViewShell );
+
+    return pFEShell;
+}
+
+void SwAccessibleSelectionHelper::throwIndexOutOfBoundsException()
+{
+    Reference < XAccessibleContext > xThis( &m_rContext );
+    Reference < XAccessibleSelection >xSelThis( xThis, UNO_QUERY );
+    lang::IndexOutOfBoundsException aExcept(
+                "index out of bounds",
+                xSelThis );
+    throw aExcept;
+}
+
+// XAccessibleSelection
+void SwAccessibleSelectionHelper::selectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    // Get the respective child as SwFrame (also do index checking), ...
+    const SwAccessibleChild aChild = m_rContext.GetChild( *(m_rContext.GetMap()),
+                                                        nChildIndex );
+    if( !aChild.IsValid() )
+        throwIndexOutOfBoundsException();
+
+    // we can only select fly frames, so we ignore (should: return
+    // false) all other attempts at child selection
+    if (GetFEShell())
+    {
+        const SdrObject *pObj = aChild.GetDrawObject();
+        if( pObj )
+            m_rContext.Select( const_cast< SdrObject *>( pObj ), nullptr==aChild.GetSwFrame());
+    }
+    // no frame shell, or no frame, or no fly frame -> can't select
+}
+
+//When the selected state of the SwFrameOrObj is set, return true.
+static bool lcl_getSelectedState(const SwAccessibleChild& aChild,
+                                     SwAccessibleContext* pContext,
+                                     SwAccessibleMap* pMap)
+{
+    Reference< XAccessible > xAcc;
+    if ( aChild.GetSwFrame() )
+    {
+        xAcc = pMap->GetContext( aChild.GetSwFrame(), false );
+    }
+    else if ( aChild.GetDrawObject() )
+    {
+        xAcc = pMap->GetContext( aChild.GetDrawObject(), pContext, false );
+    }
+
+    if( xAcc.is() )
+    {
+        Reference< XAccessibleContext > pRContext = xAcc->getAccessibleContext();
+        if(!pRContext.is())
+            return false;
+        Reference<XAccessibleStateSet> pRStateSet = pRContext->getAccessibleStateSet();
+        if( pRStateSet.is() )
+        {
+            const Sequence<short> aStates = pRStateSet->getStates();
+            if (std::find(aStates.begin(), aStates.end(), AccessibleStateType::SELECTED) != aStates.end())
+                return true;
+        }
+    }
+    return false;
+}
+
+bool SwAccessibleSelectionHelper::isAccessibleChildSelected(
+    sal_Int32 nChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    // Get the respective child as SwFrame (also do index checking), ...
+    const SwAccessibleChild aChild = m_rContext.GetChild( *(m_rContext.GetMap()),
+                                                        nChildIndex );
+    if( !aChild.IsValid() )
+        throwIndexOutOfBoundsException();
+
+    // ... and compare to the currently selected frame
+    bool bRet = false;
+    if (const SwFEShell* pFEShell = GetFEShell())
+    {
+        if ( aChild.GetSwFrame() != nullptr )
+        {
+            bRet = (pFEShell->GetSelectedFlyFrame() == aChild.GetSwFrame());
+        }
+        else if ( aChild.GetDrawObject() )
+        {
+            bRet = pFEShell->IsObjSelected( *aChild.GetDrawObject() );
+        }
+        //If the SwFrameOrObj is not selected directly in the UI, we should check whether it is selected in the selection cursor.
+        if( !bRet )
+        {
+            if( lcl_getSelectedState( aChild, &m_rContext, m_rContext.GetMap() ) )
+                bRet = true;
+        }
+    }
+
+    return bRet;
+}
+
+void SwAccessibleSelectionHelper::selectAllAccessibleChildren(  )
+{
+    SolarMutexGuard aGuard;
+
+    // We can select only one. So iterate over the children to find
+    // the first we can select, and select it.
+
+    SwFEShell* pFEShell = GetFEShell();
+    if (!pFEShell)
+        return;
+
+    std::list< SwAccessibleChild > aChildren;
+    m_rContext.GetChildren( *(m_rContext.GetMap()), aChildren );
+
+    for( const SwAccessibleChild& rChild : aChildren )
+    {
+        const SdrObject* pObj = rChild.GetDrawObject();
+        const SwFrame* pFrame = rChild.GetSwFrame();
+        if( pObj && !(pFrame != nullptr && pFEShell->IsObjSelected()) )
+        {
+            m_rContext.Select( const_cast< SdrObject *>( pObj ), nullptr==pFrame );
+            if( pFrame )
+                break;
+        }
+    }
+}
+
+sal_Int32 SwAccessibleSelectionHelper::getSelectedAccessibleChildCount(  )
+{
+    SolarMutexGuard aGuard;
+
+    sal_Int32 nCount = 0;
+    // Only one frame can be selected at a time, and we only frames
+    // for selectable children.
+    if (const SwFEShell* pFEShell = GetFEShell())
+    {
+        const SwFlyFrame* pFlyFrame = pFEShell->GetSelectedFlyFrame();
+        if( pFlyFrame )
+        {
+            nCount = 1;
+        }
+        else
+        {
+            const size_t nSelObjs = pFEShell->IsObjSelected();
+            if( nSelObjs > 0 )
+            {
+                std::list< SwAccessibleChild > aChildren;
+                m_rContext.GetChildren( *(m_rContext.GetMap()), aChildren );
+
+                for( const SwAccessibleChild& rChild : aChildren )
+                {
+                    if( rChild.GetDrawObject() && !rChild.GetSwFrame() &&
+                        SwAccessibleFrame::GetParent(rChild, m_rContext.IsInPagePreview())
+                           == m_rContext.GetFrame() &&
+                        pFEShell->IsObjSelected( *rChild.GetDrawObject() ) )
+                    {
+                        nCount++;
+                    }
+                    if (o3tl::make_unsigned(nCount) >= nSelObjs)
+                        break;
+                }
+            }
+        }
+        //If the SwFrameOrObj is not selected directly in the UI,
+        //we should check whether it is selected in the selection cursor.
+        if( nCount == 0 )
+        {
+            std::list< SwAccessibleChild > aChildren;
+            m_rContext.GetChildren( *(m_rContext.GetMap()), aChildren );
+            nCount = static_cast<sal_Int32>(std::count_if(aChildren.begin(), aChildren.end(),
+                [this](const SwAccessibleChild& aChild) { return lcl_getSelectedState(aChild, &m_rContext, m_rContext.GetMap()); }));
+        }
+    }
+    return nCount;
+}
+
+Reference<XAccessible> SwAccessibleSelectionHelper::getSelectedAccessibleChild(
+    sal_Int32 nSelectedChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    // Since the index is relative to the selected children, and since
+    // there can be at most one selected frame child, the index must
+    // be 0, and a selection must exist, otherwise we have to throw an
+    // lang::IndexOutOfBoundsException
+    SwFEShell* pFEShell = GetFEShell();
+    if (!pFEShell)
+        throwIndexOutOfBoundsException();
+
+    SwAccessibleChild aChild;
+    const SwFlyFrame *pFlyFrame = pFEShell->GetSelectedFlyFrame();
+    if( pFlyFrame )
+    {
+        if( 0 == nSelectedChildIndex )
+        {
+            if(SwAccessibleFrame::GetParent( SwAccessibleChild(pFlyFrame), m_rContext.IsInPagePreview()) == m_rContext.GetFrame() )
+            {
+                aChild = pFlyFrame;
+            }
+            else
+            {
+                const SwFrameFormat *pFrameFormat = pFlyFrame->GetFormat();
+                if (pFrameFormat)
+                {
+                    const SwFormatAnchor& rAnchor = pFrameFormat->GetAnchor();
+                    if( rAnchor.GetAnchorId() == RndStdIds::FLY_AS_CHAR )
+                    {
+                        const SwFrame *pParaFrame = SwAccessibleFrame::GetParent( SwAccessibleChild(pFlyFrame), m_rContext.IsInPagePreview() );
+                        aChild = pParaFrame;
+                    }
+                }
+            }
+        }
+    }
+    else
+    {
+        const size_t nSelObjs = pFEShell->IsObjSelected();
+        if( 0 == nSelObjs || o3tl::make_unsigned(nSelectedChildIndex) >= nSelObjs )
+            throwIndexOutOfBoundsException();
+
+        std::list< SwAccessibleChild > aChildren;
+        m_rContext.GetChildren( *(m_rContext.GetMap()), aChildren );
+
+        for( const SwAccessibleChild& rChild : aChildren )
+        {
+            if( rChild.GetDrawObject() && !rChild.GetSwFrame() &&
+                SwAccessibleFrame::GetParent(rChild, m_rContext.IsInPagePreview()) ==
+                    m_rContext.GetFrame() &&
+                pFEShell->IsObjSelected( *rChild.GetDrawObject() ) )
+            {
+                if( 0 == nSelectedChildIndex )
+                    aChild = rChild;
+                else
+                    --nSelectedChildIndex;
+            }
+            if (aChild.IsValid())
+                break;
+        }
+    }
+
+    if( !aChild.IsValid() )
+        throwIndexOutOfBoundsException();
+
+    OSL_ENSURE( m_rContext.GetMap() != nullptr, "We need the map." );
+    Reference< XAccessible > xChild;
+    if( aChild.GetSwFrame() )
+    {
+        ::rtl::Reference < SwAccessibleContext > xChildImpl(
+                m_rContext.GetMap()->GetContextImpl( aChild.GetSwFrame() ) );
+        if( xChildImpl.is() )
+        {
+            xChildImpl->SetParent( &m_rContext );
+            xChild = xChildImpl.get();
+        }
+    }
+    else if ( aChild.GetDrawObject() )
+    {
+        ::rtl::Reference < ::accessibility::AccessibleShape > xChildImpl(
+                m_rContext.GetMap()->GetContextImpl( aChild.GetDrawObject(),
+                                          &m_rContext )  );
+        if( xChildImpl.is() )
+            xChild = xChildImpl.get();
+    }
+    return xChild;
+}
+
+// index has to be treated as global child index.
+void SwAccessibleSelectionHelper::deselectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    SolarMutexGuard g;
+
+    if( nChildIndex < 0 ||
+        nChildIndex >= m_rContext.GetChildCount( *(m_rContext.GetMap()) ) )
+        throwIndexOutOfBoundsException();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/accselectionhelper.hxx b/sw/source/core/access/accselectionhelper.hxx
new file mode 100644
index 000000000..ceaa2a784
--- /dev/null
+++ b/sw/source/core/access/accselectionhelper.hxx
@@ -0,0 +1,73 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCSELECTIONHELPER_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCSELECTIONHELPER_HXX
+
+#include <sal/types.h>
+#include <com/sun/star/uno/Reference.h>
+
+namespace com::sun::star::accessibility { class XAccessible; }
+
+class SwAccessibleContext;
+class SwFEShell;
+
+class SwAccessibleSelectionHelper
+{
+    /// the context on which this helper works
+    SwAccessibleContext& m_rContext;
+
+    /// get FE-Shell
+    SwFEShell* GetFEShell();
+
+    /// @throws css::lang::IndexOutOfBoundsException
+    void throwIndexOutOfBoundsException();
+
+public:
+    SwAccessibleSelectionHelper( SwAccessibleContext& rContext );
+
+    // XAccessibleSelection
+
+    /// @throws css::lang::IndexOutOfBoundsException
+    /// @throws css::uno::RuntimeException
+    void selectAccessibleChild(
+        sal_Int32 nChildIndex );
+
+    /// @throws css::lang::IndexOutOfBoundsException
+    /// @throws css::uno::RuntimeException
+    bool isAccessibleChildSelected(
+        sal_Int32 nChildIndex );
+    /// @throws css::uno::RuntimeException
+    void selectAllAccessibleChildren(  );
+    /// @throws css::uno::RuntimeException
+    sal_Int32 getSelectedAccessibleChildCount(  );
+    /// @throws css::lang::IndexOutOfBoundsException
+    /// @throws css::uno::RuntimeException
+    css::uno::Reference< css::accessibility::XAccessible > getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex );
+    // index has to be treated as global child index.
+    /// @throws css::lang::IndexOutOfBoundsException
+    /// @throws css::uno::RuntimeException
+    void deselectAccessibleChild(
+        sal_Int32 nChildIndex );
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acctable.cxx b/sw/source/core/access/acctable.cxx
new file mode 100644
index 000000000..0fd373754
--- /dev/null
+++ b/sw/source/core/access/acctable.cxx
@@ -0,0 +1,1739 @@
+/* -*- 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 <sal/log.hxx>
+
+#include <algorithm>
+#include <vector>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleTableModelChange.hpp>
+#include <com/sun/star/accessibility/AccessibleTableModelChangeType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <o3tl/safeint.hxx>
+#include <unotools/accessiblestatesethelper.hxx>
+#include <vcl/svapp.hxx>
+#include <frmfmt.hxx>
+#include <tabfrm.hxx>
+#include <cellfrm.hxx>
+#include <swtable.hxx>
+#include <crsrsh.hxx>
+#include <viscrs.hxx>
+#include "accfrmobjslist.hxx"
+#include <accmap.hxx>
+#include <strings.hrc>
+#include "acctable.hxx"
+
+#include <com/sun/star/accessibility/XAccessibleText.hpp>
+
+#include <editeng/brushitem.hxx>
+#include <swatrset.hxx>
+#include <frmatr.hxx>
+
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/typeprovider.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using namespace ::sw::access;
+
+typedef o3tl::sorted_vector< sal_Int32 > Int32Set_Impl;
+
+const unsigned int SELECTION_WITH_NUM = 10;
+
+namespace {
+
+class SwAccTableSelHandler_Impl
+{
+public:
+    virtual void Unselect( sal_Int32 nRowOrCol, sal_Int32 nExt ) = 0;
+
+protected:
+    ~SwAccTableSelHandler_Impl() {}
+};
+
+}
+
+class SwAccessibleTableData_Impl
+{
+    SwAccessibleMap& mrAccMap;
+    Int32Set_Impl   maRows;
+    Int32Set_Impl   maColumns;
+    Point   maTabFramePos;
+    const SwTabFrame *mpTabFrame;
+    bool mbIsInPagePreview;
+    bool mbOnlyTableColumnHeader;
+
+    void CollectData( const SwFrame *pFrame );
+
+    bool FindCell( const Point& rPos, const SwFrame *pFrame ,
+                           bool bExact, const SwFrame *& rFrame ) const;
+
+    void GetSelection( const Point& rTabPos, const SwRect& rArea,
+                       const SwSelBoxes& rSelBoxes, const SwFrame *pFrame,
+                       SwAccTableSelHandler_Impl& rSelHdl,
+                       bool bColumns ) const;
+
+    // #i77106#
+    bool IncludeRow( const SwFrame& rFrame ) const
+    {
+        return !mbOnlyTableColumnHeader ||
+               mpTabFrame->IsInHeadline( rFrame );
+    }
+public:
+    // #i77106# - add third optional parameter <bOnlyTableColumnHeader>, default value <false>
+    SwAccessibleTableData_Impl( SwAccessibleMap& rAccMap,
+                                const SwTabFrame *pTabFrame,
+                                bool bIsInPagePreview,
+                                bool bOnlyTableColumnHeader = false );
+
+    const Int32Set_Impl& GetRows() const { return maRows; }
+    const Int32Set_Impl& GetColumns() const { return maColumns; }
+
+    inline Int32Set_Impl::const_iterator GetRowIter( sal_Int32 nRow ) const;
+    inline Int32Set_Impl::const_iterator GetColumnIter( sal_Int32 nCol ) const;
+
+    /// @throws lang::IndexOutOfBoundsException
+    /// @throws  uno::RuntimeException
+    const SwFrame *GetCell( sal_Int32 nRow, sal_Int32 nColumn, SwAccessibleTable *pThis ) const;
+    const SwFrame *GetCellAtPos( sal_Int32 nLeft, sal_Int32 nTop ) const;
+    inline sal_Int32 GetRowCount() const;
+    inline sal_Int32 GetColumnCount() const;
+    bool CompareExtents( const SwAccessibleTableData_Impl& r ) const;
+
+    void GetSelection( sal_Int32 nStart, sal_Int32 nEnd,
+                       const SwSelBoxes& rSelBoxes,
+                          SwAccTableSelHandler_Impl& rSelHdl,
+                       bool bColumns ) const;
+
+    /// @throws lang::IndexOutOfBoundsException
+    void CheckRowAndCol( sal_Int32 nRow, sal_Int32 nCol,
+                         SwAccessibleTable *pThis ) const;
+
+    const Point& GetTablePos() const { return maTabFramePos; }
+    void SetTablePos( const Point& rPos ) { maTabFramePos = rPos; }
+};
+
+void SwAccessibleTableData_Impl::CollectData( const SwFrame *pFrame )
+{
+    const SwAccessibleChildSList aList( *pFrame, mrAccMap );
+    SwAccessibleChildSList::const_iterator aIter( aList.begin() );
+    SwAccessibleChildSList::const_iterator aEndIter( aList.end() );
+    while( aIter != aEndIter )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwFrame *pLower = rLower.GetSwFrame();
+        if( pLower )
+        {
+            if( pLower->IsRowFrame() )
+            {
+                // #i77106#
+                if ( IncludeRow( *pLower ) )
+                {
+                    maRows.insert( pLower->getFrameArea().Top() - maTabFramePos.getY() );
+                    CollectData( pLower );
+                }
+            }
+            else if( pLower->IsCellFrame() &&
+                     rLower.IsAccessible( mbIsInPagePreview ) )
+            {
+                maColumns.insert( pLower->getFrameArea().Left() - maTabFramePos.getX() );
+            }
+            else
+            {
+                CollectData( pLower );
+            }
+        }
+        ++aIter;
+    }
+}
+
+bool SwAccessibleTableData_Impl::FindCell(
+        const Point& rPos, const SwFrame *pFrame, bool bExact,
+        const SwFrame *& rRet ) const
+{
+    bool bFound = false;
+
+    const SwAccessibleChildSList aList( *pFrame, mrAccMap );
+    SwAccessibleChildSList::const_iterator aIter( aList.begin() );
+    SwAccessibleChildSList::const_iterator aEndIter( aList.end() );
+    while( !bFound && aIter != aEndIter )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwFrame *pLower = rLower.GetSwFrame();
+        OSL_ENSURE( pLower, "child should be a frame" );
+        if( pLower )
+        {
+            if( rLower.IsAccessible( mbIsInPagePreview ) )
+            {
+                OSL_ENSURE( pLower->IsCellFrame(), "lower is not a cell frame" );
+                const SwRect& rFrame = pLower->getFrameArea();
+                if( rFrame.Right() >= rPos.X() && rFrame.Bottom() >= rPos.Y() )
+                {
+                    // We have found the cell
+                    OSL_ENSURE( rFrame.Left() <= rPos.X() && rFrame.Top() <= rPos.Y(),
+                            "find frame moved to far!" );
+                    bFound = true;
+                    if( !bExact ||
+                        (rFrame.Top() == rPos.Y() && rFrame.Left() == rPos.Y() ) )
+                    {
+                        rRet = pLower;
+                    }
+                }
+            }
+            else
+            {
+                // #i77106#
+                if ( !pLower->IsRowFrame() ||
+                     IncludeRow( *pLower ) )
+                {
+                    bFound = FindCell( rPos, pLower, bExact, rRet );
+                }
+            }
+        }
+        ++aIter;
+    }
+
+    return bFound;
+}
+
+void SwAccessibleTableData_Impl::GetSelection(
+            const Point& rTabPos,
+            const SwRect& rArea,
+            const SwSelBoxes& rSelBoxes,
+            const SwFrame *pFrame,
+            SwAccTableSelHandler_Impl& rSelHdl,
+            bool bColumns ) const
+{
+    const SwAccessibleChildSList aList( *pFrame, mrAccMap );
+    SwAccessibleChildSList::const_iterator aIter( aList.begin() );
+    SwAccessibleChildSList::const_iterator aEndIter( aList.end() );
+    while( aIter != aEndIter )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        const SwFrame *pLower = rLower.GetSwFrame();
+        OSL_ENSURE( pLower, "child should be a frame" );
+        const SwRect& rBox = rLower.GetBox( mrAccMap );
+        if( pLower && rBox.Overlaps( rArea ) )
+        {
+            if( rLower.IsAccessible( mbIsInPagePreview ) )
+            {
+                OSL_ENSURE( pLower->IsCellFrame(), "lower is not a cell frame" );
+                const SwCellFrame *pCFrame =
+                        static_cast < const SwCellFrame * >( pLower );
+                SwTableBox *pBox =
+                    const_cast< SwTableBox *>( pCFrame->GetTabBox() );
+                if( rSelBoxes.find( pBox ) == rSelBoxes.end() )
+                {
+                    const Int32Set_Impl rRowsOrCols =
+                        bColumns ? maColumns : maRows;
+
+                    sal_Int32 nPos = bColumns ? (rBox.Left() - rTabPos.X())
+                                              : (rBox.Top() - rTabPos.Y());
+                    Int32Set_Impl::const_iterator aSttRowOrCol(
+                        rRowsOrCols.lower_bound( nPos ) );
+                    sal_Int32 nRowOrCol =
+                        static_cast< sal_Int32 >( std::distance(
+                            rRowsOrCols.begin(), aSttRowOrCol ) );
+
+                    nPos = bColumns ? (rBox.Right() - rTabPos.X())
+                                    : (rBox.Bottom() - rTabPos.Y());
+                    Int32Set_Impl::const_iterator aEndRowOrCol(
+                        rRowsOrCols.upper_bound( nPos ) );
+                    sal_Int32 nExt =
+                        static_cast< sal_Int32 >( std::distance(
+                            aSttRowOrCol, aEndRowOrCol ) );
+
+                    rSelHdl.Unselect( nRowOrCol, nExt );
+                }
+            }
+            else
+            {
+                // #i77106#
+                if ( !pLower->IsRowFrame() ||
+                     IncludeRow( *pLower ) )
+                {
+                    GetSelection( rTabPos, rArea, rSelBoxes, pLower, rSelHdl,
+                                  bColumns );
+                }
+            }
+        }
+        ++aIter;
+    }
+}
+
+const SwFrame *SwAccessibleTableData_Impl::GetCell(
+        sal_Int32 nRow, sal_Int32 nColumn,
+        SwAccessibleTable *pThis ) const
+{
+    CheckRowAndCol( nRow, nColumn, pThis );
+
+    Int32Set_Impl::const_iterator aSttCol( GetColumnIter( nColumn ) );
+    Int32Set_Impl::const_iterator aSttRow( GetRowIter( nRow ) );
+    const SwFrame *pCellFrame = GetCellAtPos( *aSttCol, *aSttRow );
+
+    return pCellFrame;
+}
+
+void SwAccessibleTableData_Impl::GetSelection(
+                       sal_Int32 nStart, sal_Int32 nEnd,
+                       const SwSelBoxes& rSelBoxes,
+                          SwAccTableSelHandler_Impl& rSelHdl,
+                       bool bColumns ) const
+{
+    SwRect aArea( mpTabFrame->getFrameArea() );
+    Point aPos( aArea.Pos() );
+
+    const Int32Set_Impl& rRowsOrColumns = bColumns ? maColumns : maRows;
+    if( nStart > 0 )
+    {
+        Int32Set_Impl::const_iterator aStt( rRowsOrColumns.begin() );
+        std::advance( aStt,
+            static_cast< Int32Set_Impl::difference_type >( nStart ) );
+        if( bColumns )
+            aArea.Left( *aStt + aPos.getX() );
+        else
+            aArea.Top( *aStt + aPos.getY() );
+    }
+    if( nEnd < static_cast< sal_Int32 >( rRowsOrColumns.size() ) )
+    {
+        Int32Set_Impl::const_iterator aEnd( rRowsOrColumns.begin() );
+        std::advance( aEnd,
+            static_cast< Int32Set_Impl::difference_type >( nEnd ) );
+        if( bColumns )
+            aArea.Right( *aEnd + aPos.getX() - 1 );
+        else
+            aArea.Bottom( *aEnd + aPos.getY() - 1 );
+    }
+
+    GetSelection( aPos, aArea, rSelBoxes, mpTabFrame, rSelHdl, bColumns );
+}
+
+const SwFrame *SwAccessibleTableData_Impl::GetCellAtPos(
+        sal_Int32 nLeft, sal_Int32 nTop ) const
+{
+    Point aPos( mpTabFrame->getFrameArea().Pos() );
+    aPos.Move( nLeft, nTop );
+    const SwFrame *pRet = nullptr;
+    FindCell( aPos, mpTabFrame, false/*bExact*/, pRet );
+
+    return pRet;
+}
+
+inline sal_Int32 SwAccessibleTableData_Impl::GetRowCount() const
+{
+    sal_Int32 count =  static_cast< sal_Int32 >( maRows.size() ) ;
+    count = (count <=0)? 1:count;
+    return count;
+}
+
+inline sal_Int32 SwAccessibleTableData_Impl::GetColumnCount() const
+{
+    return static_cast< sal_Int32 >( maColumns.size() );
+}
+
+bool SwAccessibleTableData_Impl::CompareExtents(
+                                const SwAccessibleTableData_Impl& rCmp ) const
+{
+    return maRows == rCmp.maRows
+        && maColumns == rCmp.maColumns;
+}
+
+SwAccessibleTableData_Impl::SwAccessibleTableData_Impl( SwAccessibleMap& rAccMap,
+                                                        const SwTabFrame *pTabFrame,
+                                                        bool bIsInPagePreview,
+                                                        bool bOnlyTableColumnHeader )
+    : mrAccMap( rAccMap )
+    , maTabFramePos( pTabFrame->getFrameArea().Pos() )
+    , mpTabFrame( pTabFrame )
+    , mbIsInPagePreview( bIsInPagePreview )
+    , mbOnlyTableColumnHeader( bOnlyTableColumnHeader )
+{
+    CollectData( mpTabFrame );
+}
+
+inline Int32Set_Impl::const_iterator SwAccessibleTableData_Impl::GetRowIter(
+        sal_Int32 nRow ) const
+{
+    Int32Set_Impl::const_iterator aCol( GetRows().begin() );
+    if( nRow > 0 )
+    {
+        std::advance( aCol,
+                    static_cast< Int32Set_Impl::difference_type >( nRow ) );
+    }
+    return aCol;
+}
+
+inline Int32Set_Impl::const_iterator SwAccessibleTableData_Impl::GetColumnIter(
+        sal_Int32 nColumn ) const
+{
+    Int32Set_Impl::const_iterator aCol = GetColumns().begin();
+    if( nColumn > 0 )
+    {
+        std::advance( aCol,
+                    static_cast< Int32Set_Impl::difference_type >( nColumn ) );
+    }
+    return aCol;
+}
+
+void SwAccessibleTableData_Impl::CheckRowAndCol(
+        sal_Int32 nRow, sal_Int32 nCol, SwAccessibleTable *pThis ) const
+{
+    if( ( nRow < 0 || o3tl::make_unsigned(nRow) >= maRows.size() ) ||
+        ( nCol < 0 || o3tl::make_unsigned(nCol) >= maColumns.size() ) )
+    {
+        uno::Reference < XAccessibleTable > xThis( pThis );
+        lang::IndexOutOfBoundsException aExcept(
+               "row or column index out of range",
+               xThis );
+        throw aExcept;
+    }
+}
+
+namespace {
+
+class SwAccSingleTableSelHandler_Impl : public SwAccTableSelHandler_Impl
+{
+    bool m_bSelected;
+
+public:
+
+    inline SwAccSingleTableSelHandler_Impl();
+
+    virtual ~SwAccSingleTableSelHandler_Impl() {}
+
+    bool IsSelected() const { return m_bSelected; }
+
+    virtual void Unselect( sal_Int32, sal_Int32 ) override;
+};
+
+}
+
+inline SwAccSingleTableSelHandler_Impl::SwAccSingleTableSelHandler_Impl() :
+    m_bSelected( true )
+{
+}
+
+void SwAccSingleTableSelHandler_Impl::Unselect( sal_Int32, sal_Int32 )
+{
+    m_bSelected = false;
+}
+
+namespace {
+
+class SwAccAllTableSelHandler_Impl : public SwAccTableSelHandler_Impl
+
+{
+    std::vector< bool > m_aSelected;
+    sal_Int32 m_nCount;
+
+public:
+    explicit SwAccAllTableSelHandler_Impl(sal_Int32 nSize)
+        : m_aSelected(nSize, true)
+        , m_nCount(nSize)
+    {
+    }
+
+    uno::Sequence < sal_Int32 > GetSelSequence();
+
+    virtual void Unselect( sal_Int32 nRowOrCol, sal_Int32 nExt ) override;
+    virtual ~SwAccAllTableSelHandler_Impl();
+};
+
+}
+
+SwAccAllTableSelHandler_Impl::~SwAccAllTableSelHandler_Impl()
+{
+}
+
+uno::Sequence < sal_Int32 > SwAccAllTableSelHandler_Impl::GetSelSequence()
+{
+    OSL_ENSURE( m_nCount >= 0, "underflow" );
+    uno::Sequence < sal_Int32 > aRet( m_nCount );
+    sal_Int32 *pRet = aRet.getArray();
+    sal_Int32 nPos = 0;
+    size_t nSize = m_aSelected.size();
+    for( size_t i=0; i < nSize && nPos < m_nCount; i++ )
+    {
+        if( m_aSelected[i] )
+        {
+            *pRet++ = i;
+            nPos++;
+        }
+    }
+
+    OSL_ENSURE( nPos == m_nCount, "count is wrong" );
+
+    return aRet;
+}
+
+void SwAccAllTableSelHandler_Impl::Unselect( sal_Int32 nRowOrCol,
+                                            sal_Int32 nExt )
+{
+    OSL_ENSURE( o3tl::make_unsigned( nRowOrCol ) < m_aSelected.size(),
+             "index too large" );
+    OSL_ENSURE( o3tl::make_unsigned( nRowOrCol+nExt ) <= m_aSelected.size(),
+             "extent too large" );
+    while( nExt )
+    {
+        if( m_aSelected[static_cast< size_t >( nRowOrCol )] )
+        {
+            m_aSelected[static_cast< size_t >( nRowOrCol )] = false;
+            m_nCount--;
+        }
+        nExt--;
+        nRowOrCol++;
+    }
+}
+
+const SwSelBoxes *SwAccessibleTable::GetSelBoxes() const
+{
+    const SwSelBoxes *pSelBoxes = nullptr;
+    const SwCursorShell *pCSh = GetCursorShell();
+    if( (pCSh != nullptr) && pCSh->IsTableMode() )
+    {
+        pSelBoxes = &pCSh->GetTableCursor()->GetSelectedBoxes();
+    }
+
+    return pSelBoxes;
+}
+
+void SwAccessibleTable::FireTableChangeEvent(
+        const SwAccessibleTableData_Impl& rTableData )
+{
+    AccessibleTableModelChange aModelChange;
+    aModelChange.Type = AccessibleTableModelChangeType::UPDATE;
+    aModelChange.FirstRow = 0;
+    aModelChange.LastRow = rTableData.GetRowCount() - 1;
+    aModelChange.FirstColumn = 0;
+    aModelChange.LastColumn = rTableData.GetColumnCount() - 1;
+
+    AccessibleEventObject aEvent;
+    aEvent.EventId = AccessibleEventId::TABLE_MODEL_CHANGED;
+    aEvent.NewValue <<= aModelChange;
+
+    FireAccessibleEvent( aEvent );
+}
+
+const SwTableBox* SwAccessibleTable::GetTableBox( sal_Int32 nChildIndex ) const
+{
+    OSL_ENSURE( nChildIndex >= 0, "Illegal child index." );
+    OSL_ENSURE( nChildIndex < const_cast<SwAccessibleTable*>(this)->getAccessibleChildCount(), "Illegal child index." ); // #i77106#
+
+    const SwTableBox* pBox = nullptr;
+
+    // get table box for 'our' table cell
+    SwAccessibleChild aCell( GetChild( *const_cast<SwAccessibleMap*>(GetMap()), nChildIndex ) );
+    if( aCell.GetSwFrame()  )
+    {
+        const SwFrame* pChildFrame = aCell.GetSwFrame();
+        if( (pChildFrame != nullptr) && pChildFrame->IsCellFrame() )
+        {
+            const SwCellFrame* pCellFrame =
+                static_cast<const SwCellFrame*>( pChildFrame );
+            pBox = pCellFrame->GetTabBox();
+        }
+    }
+
+    OSL_ENSURE( pBox != nullptr, "We need the table box." );
+    return pBox;
+}
+
+bool SwAccessibleTable::IsChildSelected( sal_Int32 nChildIndex ) const
+{
+    bool bRet = false;
+    const SwSelBoxes* pSelBoxes = GetSelBoxes();
+    if( pSelBoxes )
+    {
+        const SwTableBox* pBox = GetTableBox( nChildIndex );
+        OSL_ENSURE( pBox != nullptr, "We need the table box." );
+        bRet = pSelBoxes->find( const_cast<SwTableBox*>( pBox ) ) != pSelBoxes->end();
+    }
+
+    return bRet;
+}
+
+sal_Int32 SwAccessibleTable::GetIndexOfSelectedChild(
+                sal_Int32 nSelectedChildIndex ) const
+{
+    // iterate over all children to n-th isAccessibleChildSelected()
+    sal_Int32 nChildren = const_cast<SwAccessibleTable*>(this)->getAccessibleChildCount(); // #i77106#
+    if( nSelectedChildIndex >= nChildren )
+        return -1;
+
+    sal_Int32 n = 0;
+    while( n < nChildren )
+    {
+        if( IsChildSelected( n ) )
+        {
+            if( 0 == nSelectedChildIndex )
+                break;
+            else
+                --nSelectedChildIndex;
+        }
+        ++n;
+    }
+
+    return n < nChildren ? n : -1;
+}
+
+void SwAccessibleTable::GetStates(
+        ::utl::AccessibleStateSetHelper& rStateSet )
+{
+    SwAccessibleContext::GetStates( rStateSet );
+    //Add resizable state to table
+    rStateSet.AddState( AccessibleStateType::RESIZABLE );
+    // MULTISELECTABLE
+    rStateSet.AddState( AccessibleStateType::MULTI_SELECTABLE );
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell  )
+        rStateSet.AddState( AccessibleStateType::MULTI_SELECTABLE );
+}
+
+SwAccessibleTable::SwAccessibleTable(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwTabFrame* pTabFrame  ) :
+    SwAccessibleContext( pInitMap, AccessibleRole::TABLE, pTabFrame )
+{
+    const SwFrameFormat* pFrameFormat = pTabFrame->GetFormat();
+    if(pFrameFormat)
+        StartListening(const_cast<SwFrameFormat*>(pFrameFormat)->GetNotifier());
+
+    SetName( pFrameFormat->GetName() + "-" + OUString::number( pTabFrame->GetPhyPageNum() ) );
+
+    const OUString sArg1( static_cast< const SwTabFrame * >( GetFrame() )->GetFormat()->GetName() );
+    const OUString sArg2( GetFormattedPageNumber() );
+
+    m_sDesc = GetResource( STR_ACCESS_TABLE_DESC, &sArg1, &sArg2 );
+    UpdateTableData();
+}
+
+SwAccessibleTable::~SwAccessibleTable()
+{
+    SolarMutexGuard aGuard;
+
+    mpTableData.reset();
+}
+
+void SwAccessibleTable::Notify(const SfxHint& rHint)
+{
+    if(rHint.GetId() == SfxHintId::Dying)
+    {
+        EndListeningAll();
+    }
+    else if (rHint.GetId() == SfxHintId::SwLegacyModify)
+    {
+        auto pLegacyHint = static_cast<const sw::LegacyModifyHint*>(&rHint);
+        const sal_uInt16 nWhich = pLegacyHint->GetWhich();
+        const SwTabFrame* pTabFrame = static_cast<const SwTabFrame*>(GetFrame());
+        if(nWhich == RES_NAME_CHANGED && pTabFrame)
+        {
+            const SwFrameFormat *pFrameFormat = pTabFrame->GetFormat();
+
+            const OUString sOldName( GetName() );
+            const OUString sNewTabName = pFrameFormat->GetName();
+
+            SetName( sNewTabName + "-" + OUString::number( pTabFrame->GetPhyPageNum() ) );
+
+            if( sOldName != GetName() )
+            {
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::NAME_CHANGED;
+                aEvent.OldValue <<= sOldName;
+                aEvent.NewValue <<= GetName();
+                FireAccessibleEvent( aEvent );
+            }
+
+            const OUString sOldDesc( m_sDesc );
+            const OUString sArg2( GetFormattedPageNumber() );
+
+            m_sDesc = GetResource( STR_ACCESS_TABLE_DESC, &sNewTabName, &sArg2 );
+            if( m_sDesc != sOldDesc )
+            {
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED;
+                aEvent.OldValue <<= sOldDesc;
+                aEvent.NewValue <<= m_sDesc;
+                FireAccessibleEvent( aEvent );
+            }
+        }
+    }
+}
+
+uno::Any SwAccessibleTable::queryInterface( const uno::Type& rType )
+{
+    uno::Any aRet;
+    if ( rType == cppu::UnoType<XAccessibleTable>::get() )
+    {
+        uno::Reference<XAccessibleTable> xThis( this );
+        aRet <<= xThis;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleSelection>::get() )
+    {
+        uno::Reference<XAccessibleSelection> xSelection( this );
+        aRet <<= xSelection;
+    }
+    else if ( rType == cppu::UnoType<XAccessibleTableSelection>::get() )
+    {
+        uno::Reference<XAccessibleTableSelection> xTableExtent( this );
+        aRet <<= xTableExtent;
+    }
+    else
+    {
+        aRet = SwAccessibleContext::queryInterface(rType);
+    }
+
+    return aRet;
+}
+
+// XTypeProvider
+uno::Sequence< uno::Type > SAL_CALL SwAccessibleTable::getTypes()
+{
+    return cppu::OTypeCollection(
+        cppu::UnoType<XAccessibleSelection>::get(),
+        cppu::UnoType<XAccessibleTable>::get(),
+        SwAccessibleContext::getTypes() ).getTypes();
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleTable::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// #i77106#
+std::unique_ptr<SwAccessibleTableData_Impl> SwAccessibleTable::CreateNewTableData()
+{
+    const SwTabFrame* pTabFrame = static_cast<const SwTabFrame*>( GetFrame() );
+    return std::unique_ptr<SwAccessibleTableData_Impl>(new SwAccessibleTableData_Impl( *GetMap(), pTabFrame, IsInPagePreview() ));
+}
+
+void SwAccessibleTable::UpdateTableData()
+{
+    // #i77106# - usage of new method <CreateNewTableData()>
+    mpTableData = CreateNewTableData();
+}
+
+void SwAccessibleTable::ClearTableData()
+{
+    mpTableData.reset();
+}
+
+OUString SAL_CALL SwAccessibleTable::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return m_sDesc;
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleRowCount()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return  GetTableData().GetRowCount();
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleColumnCount(  )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return GetTableData().GetColumnCount();
+}
+
+OUString SAL_CALL SwAccessibleTable::getAccessibleRowDescription(
+            sal_Int32 nRow )
+{
+    // #i87532# - determine table cell in <nRow>th row and
+    // in first column of row header table and return its text content.
+    OUString sRowDesc;
+
+    GetTableData().CheckRowAndCol(nRow, 0, this);
+
+    uno::Reference< XAccessibleTable > xTableRowHeader = getAccessibleRowHeaders();
+    if ( xTableRowHeader.is() )
+    {
+        uno::Reference< XAccessible > xRowHeaderCell =
+                        xTableRowHeader->getAccessibleCellAt( nRow, 0 );
+        OSL_ENSURE( xRowHeaderCell.is(),
+                "<SwAccessibleTable::getAccessibleRowDescription(..)> - missing row header cell -> serious issue." );
+        uno::Reference< XAccessibleContext > xRowHeaderCellContext =
+                                    xRowHeaderCell->getAccessibleContext();
+        const sal_Int32 nCellChildCount( xRowHeaderCellContext->getAccessibleChildCount() );
+        for ( sal_Int32 nChildIndex = 0; nChildIndex < nCellChildCount; ++nChildIndex )
+        {
+            uno::Reference< XAccessible > xChild = xRowHeaderCellContext->getAccessibleChild( nChildIndex );
+            uno::Reference< XAccessibleText > xChildText( xChild, uno::UNO_QUERY );
+            if ( xChildText.is() )
+            {
+                sRowDesc += xChildText->getText();
+            }
+        }
+    }
+
+    return sRowDesc;
+}
+
+OUString SAL_CALL SwAccessibleTable::getAccessibleColumnDescription(
+            sal_Int32 nColumn )
+{
+    // #i87532# - determine table cell in first row and
+    // in <nColumn>th column of column header table and return its text content.
+    OUString sColumnDesc;
+
+    GetTableData().CheckRowAndCol(0, nColumn, this);
+
+    uno::Reference< XAccessibleTable > xTableColumnHeader = getAccessibleColumnHeaders();
+    if ( xTableColumnHeader.is() )
+    {
+        uno::Reference< XAccessible > xColumnHeaderCell =
+                        xTableColumnHeader->getAccessibleCellAt( 0, nColumn );
+        OSL_ENSURE( xColumnHeaderCell.is(),
+                "<SwAccessibleTable::getAccessibleColumnDescription(..)> - missing column header cell -> serious issue." );
+        uno::Reference< XAccessibleContext > xColumnHeaderCellContext =
+                                    xColumnHeaderCell->getAccessibleContext();
+        const sal_Int32 nCellChildCount( xColumnHeaderCellContext->getAccessibleChildCount() );
+        for ( sal_Int32 nChildIndex = 0; nChildIndex < nCellChildCount; ++nChildIndex )
+        {
+            uno::Reference< XAccessible > xChild = xColumnHeaderCellContext->getAccessibleChild( nChildIndex );
+            uno::Reference< XAccessibleText > xChildText( xChild, uno::UNO_QUERY );
+            if ( xChildText.is() )
+            {
+                sColumnDesc += xChildText->getText();
+            }
+        }
+    }
+
+    return sColumnDesc;
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleRowExtentAt(
+            sal_Int32 nRow, sal_Int32 nColumn )
+{
+    sal_Int32 nExtend = -1;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    UpdateTableData();
+    GetTableData().CheckRowAndCol( nRow, nColumn, this );
+
+    Int32Set_Impl::const_iterator aSttCol(
+                                    GetTableData().GetColumnIter( nColumn ) );
+    Int32Set_Impl::const_iterator aSttRow(
+                                    GetTableData().GetRowIter( nRow ) );
+    const SwFrame *pCellFrame = GetTableData().GetCellAtPos( *aSttCol, *aSttRow );
+    if( pCellFrame )
+    {
+        sal_Int32 nBottom = pCellFrame->getFrameArea().Bottom();
+        nBottom -= GetFrame()->getFrameArea().Top();
+        Int32Set_Impl::const_iterator aEndRow(
+                GetTableData().GetRows().upper_bound( nBottom ) );
+        nExtend =
+             static_cast< sal_Int32 >( std::distance( aSttRow, aEndRow ) );
+    }
+
+    return nExtend;
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleColumnExtentAt(
+               sal_Int32 nRow, sal_Int32 nColumn )
+{
+    sal_Int32 nExtend = -1;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+    UpdateTableData();
+
+    GetTableData().CheckRowAndCol( nRow, nColumn, this );
+
+    Int32Set_Impl::const_iterator aSttCol(
+                                    GetTableData().GetColumnIter( nColumn ) );
+    Int32Set_Impl::const_iterator aSttRow(
+                                    GetTableData().GetRowIter( nRow ) );
+    const SwFrame *pCellFrame = GetTableData().GetCellAtPos( *aSttCol, *aSttRow );
+    if( pCellFrame )
+    {
+        sal_Int32 nRight = pCellFrame->getFrameArea().Right();
+        nRight -= GetFrame()->getFrameArea().Left();
+        Int32Set_Impl::const_iterator aEndCol(
+                GetTableData().GetColumns().upper_bound( nRight ) );
+        nExtend =
+             static_cast< sal_Int32 >( std::distance( aSttCol, aEndCol ) );
+    }
+
+    return nExtend;
+}
+
+uno::Reference< XAccessibleTable > SAL_CALL
+        SwAccessibleTable::getAccessibleRowHeaders(  )
+{
+    // Row headers aren't supported
+    return uno::Reference< XAccessibleTable >();
+}
+
+uno::Reference< XAccessibleTable > SAL_CALL
+        SwAccessibleTable::getAccessibleColumnHeaders(  )
+{
+    SolarMutexGuard aGuard;
+
+    // #i87532# - assure that return accessible object is empty,
+    // if no column header exists.
+    rtl::Reference<SwAccessibleTableColHeaders> pTableColHeaders =
+        new SwAccessibleTableColHeaders(GetMap()->shared_from_this(),
+                    static_cast<const SwTabFrame *>(GetFrame()));
+    if ( pTableColHeaders->getAccessibleChildCount() <= 0 )
+    {
+        return uno::Reference< XAccessibleTable >();
+    }
+
+    return pTableColHeaders;
+}
+
+uno::Sequence< sal_Int32 > SAL_CALL SwAccessibleTable::getSelectedAccessibleRows()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwSelBoxes *pSelBoxes = GetSelBoxes();
+    if( pSelBoxes )
+    {
+        sal_Int32 nRows = GetTableData().GetRowCount();
+        SwAccAllTableSelHandler_Impl aSelRows( nRows  );
+
+        GetTableData().GetSelection( 0, nRows, *pSelBoxes, aSelRows,
+                                      false );
+
+        return aSelRows.GetSelSequence();
+    }
+    else
+    {
+        return uno::Sequence< sal_Int32 >( 0 );
+    }
+}
+
+uno::Sequence< sal_Int32 > SAL_CALL SwAccessibleTable::getSelectedAccessibleColumns()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwSelBoxes *pSelBoxes = GetSelBoxes();
+    if( pSelBoxes )
+    {
+        sal_Int32 nCols = GetTableData().GetColumnCount();
+        SwAccAllTableSelHandler_Impl aSelCols( nCols );
+
+        GetTableData().GetSelection( 0, nCols, *pSelBoxes, aSelCols, true );
+
+        return aSelCols.GetSelSequence();
+    }
+    else
+    {
+        return uno::Sequence< sal_Int32 >( 0 );
+    }
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::isAccessibleRowSelected( sal_Int32 nRow )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    GetTableData().CheckRowAndCol( nRow, 0, this );
+
+    bool bRet;
+    const SwSelBoxes *pSelBoxes = GetSelBoxes();
+    if( pSelBoxes )
+    {
+        SwAccSingleTableSelHandler_Impl aSelRow;
+        GetTableData().GetSelection( nRow, nRow+1, *pSelBoxes, aSelRow,
+                                     false );
+        bRet = aSelRow.IsSelected();
+    }
+    else
+    {
+        bRet = false;
+    }
+
+    return bRet;
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::isAccessibleColumnSelected(
+        sal_Int32 nColumn )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    GetTableData().CheckRowAndCol( 0, nColumn, this );
+
+    bool bRet;
+    const SwSelBoxes *pSelBoxes = GetSelBoxes();
+    if( pSelBoxes )
+    {
+        SwAccSingleTableSelHandler_Impl aSelCol;
+
+        GetTableData().GetSelection( nColumn, nColumn+1, *pSelBoxes, aSelCol,
+                                     true );
+        bRet = aSelCol.IsSelected();
+    }
+    else
+    {
+        bRet = false;
+    }
+
+    return bRet;
+}
+
+uno::Reference< XAccessible > SAL_CALL SwAccessibleTable::getAccessibleCellAt(
+        sal_Int32 nRow, sal_Int32 nColumn )
+{
+    uno::Reference< XAccessible > xRet;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwFrame *pCellFrame =
+                    GetTableData().GetCell( nRow, nColumn, this );
+    if( pCellFrame )
+        xRet = GetMap()->GetContext( pCellFrame );
+
+    return xRet;
+}
+
+uno::Reference< XAccessible > SAL_CALL SwAccessibleTable::getAccessibleCaption()
+{
+    // captions aren't supported
+    return uno::Reference< XAccessible >();
+}
+
+uno::Reference< XAccessible > SAL_CALL SwAccessibleTable::getAccessibleSummary()
+{
+    // summaries aren't supported
+    return uno::Reference< XAccessible >();
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::isAccessibleSelected(
+            sal_Int32 nRow, sal_Int32 nColumn )
+{
+    bool bRet = false;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    const SwFrame *pFrame =
+                    GetTableData().GetCell( nRow, nColumn, this );
+    if( pFrame && pFrame->IsCellFrame() )
+    {
+        const SwSelBoxes *pSelBoxes = GetSelBoxes();
+        if( pSelBoxes )
+        {
+            const SwCellFrame *pCFrame = static_cast < const SwCellFrame * >( pFrame );
+            SwTableBox *pBox =
+                const_cast< SwTableBox *>( pCFrame->GetTabBox() );
+            bRet = pSelBoxes->find( pBox ) != pSelBoxes->end();
+        }
+    }
+
+    return bRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleIndex(
+            sal_Int32 nRow, sal_Int32 nColumn )
+{
+    sal_Int32 nRet = -1;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    SwAccessibleChild aCell( GetTableData().GetCell( nRow, nColumn, this ));
+    if ( aCell.IsValid() )
+    {
+        nRet = GetChildIndex( *(GetMap()), aCell );
+    }
+
+    return nRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleRow( sal_Int32 nChildIndex )
+{
+    sal_Int32 nRet = -1;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // #i77106#
+    if ( ( nChildIndex < 0 ) ||
+         ( nChildIndex >= getAccessibleChildCount() ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    SwAccessibleChild aCell( GetChild( *(GetMap()), nChildIndex ) );
+    if ( aCell.GetSwFrame()  )
+    {
+        sal_Int32 nTop = aCell.GetSwFrame()->getFrameArea().Top();
+        nTop -= GetFrame()->getFrameArea().Top();
+        Int32Set_Impl::const_iterator aRow(
+                GetTableData().GetRows().lower_bound( nTop ) );
+        nRet = static_cast< sal_Int32 >( std::distance(
+                    GetTableData().GetRows().begin(), aRow ) );
+    }
+    else
+    {
+        OSL_ENSURE( !aCell.IsValid(), "SwAccessibleTable::getAccessibleColumn:"
+                "aCell not expected to be valid.");
+
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    return nRet;
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getAccessibleColumn(
+        sal_Int32 nChildIndex )
+{
+    sal_Int32 nRet = -1;
+
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // #i77106#
+    if ( ( nChildIndex < 0 ) ||
+         ( nChildIndex >= getAccessibleChildCount() ) )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    SwAccessibleChild aCell( GetChild( *(GetMap()), nChildIndex ) );
+    if ( aCell.GetSwFrame()  )
+    {
+        sal_Int32 nLeft = aCell.GetSwFrame()->getFrameArea().Left();
+        nLeft -= GetFrame()->getFrameArea().Left();
+        Int32Set_Impl::const_iterator aCol(
+                GetTableData().GetColumns().lower_bound( nLeft ) );
+        nRet = static_cast< sal_Int32 >( std::distance(
+                    GetTableData().GetColumns().begin(), aCol ) );
+    }
+    else
+    {
+        OSL_ENSURE( !aCell.IsValid(), "SwAccessibleTable::getAccessibleColumn:"
+                "aCell not expected to be valid.");
+
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    return nRet;
+}
+
+OUString SAL_CALL SwAccessibleTable::getImplementationName()
+{
+    return "com.sun.star.comp.Writer.SwAccessibleTableView";
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::supportsService(
+        const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL SwAccessibleTable::getSupportedServiceNames()
+{
+    return { "com.sun.star.table.AccessibleTableView", sAccessibleServiceName };
+}
+
+void SwAccessibleTable::InvalidatePosOrSize( const SwRect& rOldBox )
+{
+    SolarMutexGuard aGuard;
+
+    //need to update children
+    std::unique_ptr<SwAccessibleTableData_Impl> pNewTableData = CreateNewTableData();
+    if( !pNewTableData->CompareExtents( GetTableData() ) )
+    {
+        mpTableData = std::move(pNewTableData);
+        FireTableChangeEvent(*mpTableData);
+    }
+    if( HasTableData() )
+        GetTableData().SetTablePos( GetFrame()->getFrameArea().Pos() );
+
+    SwAccessibleContext::InvalidatePosOrSize( rOldBox );
+}
+
+void SwAccessibleTable::Dispose(bool bRecursive, bool bCanSkipInvisible)
+{
+    SolarMutexGuard aGuard;
+    EndListeningAll();
+    SwAccessibleContext::Dispose(bRecursive, bCanSkipInvisible);
+}
+
+void SwAccessibleTable::DisposeChild( const SwAccessibleChild& rChildFrameOrObj,
+                                      bool bRecursive, bool bCanSkipInvisible )
+{
+    SolarMutexGuard aGuard;
+
+    const SwFrame *pFrame = rChildFrameOrObj.GetSwFrame();
+    OSL_ENSURE( pFrame, "frame expected" );
+    if( HasTableData() )
+    {
+        FireTableChangeEvent( GetTableData() );
+        ClearTableData();
+    }
+
+    // There are two reason why this method has been called. The first one
+    // is there is no context for pFrame. The method is then called by
+    // the map, and we have to call our superclass.
+    // The other situation is that we have been call by a call to get notified
+    // about its change. We then must not call the superclass
+    uno::Reference< XAccessible > xAcc( GetMap()->GetContext( pFrame, false ) );
+    if( !xAcc.is() )
+        SwAccessibleContext::DisposeChild( rChildFrameOrObj, bRecursive, bCanSkipInvisible );
+}
+
+void SwAccessibleTable::InvalidateChildPosOrSize( const SwAccessibleChild& rChildFrameOrObj,
+                                                  const SwRect& rOldBox )
+{
+    SolarMutexGuard aGuard;
+
+    if( HasTableData() )
+    {
+        SAL_WARN_IF( HasTableData() &&
+                GetFrame()->getFrameArea().Pos() != GetTableData().GetTablePos(),
+                "sw.a11y", "table has invalid position" );
+        if( HasTableData() )
+        {
+            std::unique_ptr<SwAccessibleTableData_Impl> pNewTableData = CreateNewTableData(); // #i77106#
+            if( !pNewTableData->CompareExtents( GetTableData() ) )
+            {
+                if (pNewTableData->GetRowCount() != mpTableData->GetRowCount()
+                    && 1 < GetTableData().GetRowCount())
+                {
+                    Int32Set_Impl::const_iterator aSttCol( GetTableData().GetColumnIter( 0 ) );
+                    Int32Set_Impl::const_iterator aSttRow( GetTableData().GetRowIter( 1 ) );
+                    const SwFrame *pCellFrame = GetTableData().GetCellAtPos( *aSttCol, *aSttRow );
+                    Int32Set_Impl::const_iterator aSttCol2( pNewTableData->GetColumnIter( 0 ) );
+                    Int32Set_Impl::const_iterator aSttRow2( pNewTableData->GetRowIter( 0 ) );
+                    const SwFrame *pCellFrame2 = pNewTableData->GetCellAtPos( *aSttCol2, *aSttRow2 );
+
+                    if(pCellFrame == pCellFrame2)
+                    {
+                        AccessibleTableModelChange aModelChange;
+                        aModelChange.Type = AccessibleTableModelChangeType::UPDATE;
+                        aModelChange.FirstRow = 0;
+                        aModelChange.LastRow = mpTableData->GetRowCount() - 1;
+                        aModelChange.FirstColumn = 0;
+                        aModelChange.LastColumn = mpTableData->GetColumnCount() - 1;
+
+                        AccessibleEventObject aEvent;
+                        aEvent.EventId = AccessibleEventId::TABLE_COLUMN_HEADER_CHANGED;
+                        aEvent.NewValue <<= aModelChange;
+
+                        FireAccessibleEvent( aEvent );
+                    }
+                }
+                else
+                    FireTableChangeEvent( GetTableData() );
+                ClearTableData();
+                mpTableData = std::move(pNewTableData);
+            }
+        }
+    }
+
+    // #i013961# - always call super class method
+    SwAccessibleContext::InvalidateChildPosOrSize( rChildFrameOrObj, rOldBox );
+}
+
+// XAccessibleSelection
+
+void SAL_CALL SwAccessibleTable::selectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if( (nChildIndex < 0) || (nChildIndex >= getAccessibleChildCount()) ) // #i77106#
+        throw lang::IndexOutOfBoundsException();
+
+    // preliminaries: get 'our' table box, and get the cursor shell
+    const SwTableBox* pBox = GetTableBox( nChildIndex );
+    OSL_ENSURE( pBox != nullptr, "We need the table box." );
+
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell == nullptr )
+        return;
+
+    // assure, that child, identified by the given index, isn't already selected.
+    if ( IsChildSelected( nChildIndex ) )
+    {
+        return;
+    }
+
+    // now we can start to do the work: check whether we already have
+    // a table selection (in 'our' table). If so, extend the
+    // selection, else select the current cell.
+
+    // if we have a selection in a table, check if it's in the
+    // same table that we're trying to select in
+    const SwTableNode* pSelectedTable = pCursorShell->IsCursorInTable();
+    if( pSelectedTable != nullptr )
+    {
+        // get top-most table line
+        const SwTableLine* pUpper = pBox->GetUpper();
+        while( pUpper->GetUpper() != nullptr )
+            pUpper = pUpper->GetUpper()->GetUpper();
+        sal_uInt16 nPos =
+            pSelectedTable->GetTable().GetTabLines().GetPos( pUpper );
+        if( nPos == USHRT_MAX )
+            pSelectedTable = nullptr;
+    }
+
+    // create the new selection
+    const SwStartNode* pStartNode = pBox->GetSttNd();
+    if( pSelectedTable == nullptr || !pCursorShell->GetTableCrs() )
+    {
+        pCursorShell->StartAction();
+        // Set cursor into current cell. This deletes any table cursor.
+        SwPaM aPaM( *pStartNode );
+        aPaM.Move( fnMoveForward, GoInNode );
+        Select( aPaM );
+        // Move cursor to the end of the table creating a selection and a table
+        // cursor.
+        pCursorShell->SetMark();
+        pCursorShell->MoveTable( GotoCurrTable, fnTableEnd );
+        // now set the cursor into the cell again.
+        SwPaM *pPaM = pCursorShell->GetTableCrs() ? pCursorShell->GetTableCrs()
+                                                    : pCursorShell->GetCursor();
+        *pPaM->GetPoint() = *pPaM->GetMark();
+        pCursorShell->EndAction();
+        // we now have one cell selected!
+    }
+    else
+    {
+        // if the cursor is already in this table,
+        // expand the current selection (i.e., set
+        // point to new position; keep mark)
+        SwPaM aPaM( *pStartNode );
+        aPaM.Move( fnMoveForward, GoInNode );
+        aPaM.SetMark();
+        const SwPaM *pPaM = pCursorShell->GetTableCrs() ? pCursorShell->GetTableCrs()
+                                                    : pCursorShell->GetCursor();
+        *(aPaM.GetMark()) = *pPaM->GetMark();
+        Select( aPaM );
+
+    }
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::isAccessibleChildSelected(
+    sal_Int32 nChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if( (nChildIndex < 0) || (nChildIndex >= getAccessibleChildCount()) ) // #i77106#
+        throw lang::IndexOutOfBoundsException();
+
+    return IsChildSelected( nChildIndex );
+}
+
+void SAL_CALL SwAccessibleTable::clearAccessibleSelection(  )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    SwCursorShell* pCursorShell = GetCursorShell();
+    if( pCursorShell != nullptr )
+    {
+        pCursorShell->StartAction();
+        pCursorShell->ClearMark();
+        pCursorShell->EndAction();
+    }
+}
+
+void SAL_CALL SwAccessibleTable::selectAllAccessibleChildren(  )
+{
+    // first clear selection, then select first and last child
+    clearAccessibleSelection();
+    selectAccessibleChild( 0 );
+    selectAccessibleChild( getAccessibleChildCount()-1 ); // #i77106#
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getSelectedAccessibleChildCount(  )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // iterate over all children and count isAccessibleChildSelected()
+    sal_Int32 nCount = 0;
+
+    sal_Int32 nChildren = getAccessibleChildCount(); // #i71106#
+    for( sal_Int32 n = 0; n < nChildren; n++ )
+        if( IsChildSelected( n ) )
+            nCount++;
+
+    return nCount;
+}
+
+uno::Reference<XAccessible> SAL_CALL SwAccessibleTable::getSelectedAccessibleChild(
+    sal_Int32 nSelectedChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // parameter checking (part 1): index lower 0
+    if( nSelectedChildIndex < 0 )
+        throw lang::IndexOutOfBoundsException();
+
+    sal_Int32 nChildIndex = GetIndexOfSelectedChild( nSelectedChildIndex );
+
+    // parameter checking (part 2): index higher than selected children?
+    if( nChildIndex < 0 )
+        throw lang::IndexOutOfBoundsException();
+
+    // #i77106#
+    if ( nChildIndex >= getAccessibleChildCount() )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    return getAccessibleChild( nChildIndex );
+}
+
+// index has to be treated as global child index.
+void SAL_CALL SwAccessibleTable::deselectAccessibleChild(
+    sal_Int32 nChildIndex )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    SwCursorShell* pCursorShell = GetCursorShell();
+
+    // index has to be treated as global child index
+    if ( !pCursorShell )
+        throw lang::IndexOutOfBoundsException();
+
+    // assure, that given child index is in bounds.
+    if ( nChildIndex < 0 || nChildIndex >= getAccessibleChildCount() ) // #i77106#
+        throw lang::IndexOutOfBoundsException();
+
+    // assure, that child, identified by the given index, is selected.
+    if ( !IsChildSelected( nChildIndex ) )
+        return;
+
+    const SwTableBox* pBox = GetTableBox( nChildIndex );
+    OSL_ENSURE( pBox != nullptr, "We need the table box." );
+
+    // If we unselect point, then set cursor to mark. If we clear another
+    // selected box, then set cursor to point.
+    // reduce selection to mark.
+    SwPaM *pPaM = pCursorShell->GetTableCrs() ? pCursorShell->GetTableCrs()
+                                                : pCursorShell->GetCursor();
+    bool bDeselectPoint =
+        pBox->GetSttNd() ==
+            pPaM->GetPoint()->nNode.GetNode().FindTableBoxStartNode();
+
+    SwPaM aPaM( bDeselectPoint ? *pPaM->GetMark() : *pPaM->GetPoint() );
+
+    pCursorShell->StartAction();
+
+    // Set cursor into either point or mark
+    Select( aPaM );
+    // Move cursor to the end of the table creating a selection and a table
+    // cursor.
+    pCursorShell->SetMark();
+    pCursorShell->MoveTable( GotoCurrTable, fnTableEnd );
+    // now set the cursor into the cell again.
+    pPaM = pCursorShell->GetTableCrs() ? pCursorShell->GetTableCrs()
+                                        : pCursorShell->GetCursor();
+    *pPaM->GetPoint() = *pPaM->GetMark();
+    pCursorShell->EndAction();
+}
+
+sal_Int32 SAL_CALL SwAccessibleTable::getBackground()
+{
+    const SvxBrushItem &rBack = GetFrame()->GetAttrSet()->GetBackground();
+    Color crBack = rBack.GetColor();
+
+    if (COL_AUTO == crBack)
+    {
+        uno::Reference<XAccessible> xAccDoc = getAccessibleParent();
+        if (xAccDoc.is())
+        {
+            uno::Reference<XAccessibleComponent> xComponentDoc(xAccDoc,uno::UNO_QUERY);
+            if (xComponentDoc.is())
+            {
+                crBack = Color(ColorTransparency, xComponentDoc->getBackground());
+            }
+        }
+    }
+    return sal_Int32(crBack);
+}
+
+void SwAccessibleTable::FireSelectionEvent( )
+{
+    AccessibleEventObject aEvent;
+
+    aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_REMOVE;
+
+    for (const auto& rCell : m_vecCellRemove)
+    {
+        // fdo#57197: check if the object is still alive
+        uno::Reference<XAccessible> const xAcc(rCell.second);
+        if (xAcc.is())
+        {
+            SwAccessibleContext *const pAccCell(rCell.first);
+            assert(pAccCell);
+            pAccCell->FireAccessibleEvent(aEvent);
+        }
+    }
+
+    if (m_vecCellAdd.size() <= SELECTION_WITH_NUM)
+    {
+        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_ADD;
+        for (const auto& rCell : m_vecCellAdd)
+        {
+            // fdo#57197: check if the object is still alive
+            uno::Reference<XAccessible> const xAcc(rCell.second);
+            if (xAcc.is())
+            {
+                SwAccessibleContext *const pAccCell(rCell.first);
+                assert(pAccCell);
+                pAccCell->FireAccessibleEvent(aEvent);
+            }
+        }
+        return ;
+    }
+    else
+    {
+        aEvent.EventId = AccessibleEventId::SELECTION_CHANGED_WITHIN;
+        FireAccessibleEvent(aEvent);
+    }
+}
+
+void SwAccessibleTable::AddSelectionCell(
+        SwAccessibleContext *const pAccCell, bool const bAddOrRemove)
+{
+    uno::Reference<XAccessible> const xTmp(pAccCell);
+    if (bAddOrRemove)
+    {
+        m_vecCellAdd.emplace_back(pAccCell, xTmp);
+    }
+    else
+    {
+        m_vecCellRemove.emplace_back(pAccCell, xTmp);
+    }
+}
+
+// XAccessibleTableSelection
+sal_Bool SAL_CALL SwAccessibleTable::selectRow( sal_Int32 row )
+{
+    SolarMutexGuard g;
+
+    if( isAccessibleColumnSelected( row ) )
+        return true;
+
+    tools::Long lColumnCount = getAccessibleColumnCount();
+    for(tools::Long lCol = 0; lCol < lColumnCount; lCol ++)
+    {
+        tools::Long lChildIndex = getAccessibleIndex(row, lCol);
+        selectAccessibleChild(lChildIndex);
+    }
+
+    return true;
+}
+sal_Bool SAL_CALL SwAccessibleTable::selectColumn( sal_Int32 column )
+{
+    SolarMutexGuard g;
+
+    if( isAccessibleColumnSelected( column ) )
+        return true;
+
+    sal_Int32 lRowCount = getAccessibleRowCount();
+
+    for(sal_Int32 lRow = 0; lRow < lRowCount; lRow ++)
+    {
+        sal_Int32 lChildIndex = getAccessibleIndex(lRow, column);
+        selectAccessibleChild(lChildIndex);
+    }
+    return true;
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::unselectRow( sal_Int32 row )
+{
+    SolarMutexGuard g;
+
+    if( isAccessibleSelected( row , 0 ) &&  isAccessibleSelected( row , getAccessibleColumnCount()-1 ) )
+    {
+        SwCursorShell* pCursorShell = GetCursorShell();
+        if( pCursorShell != nullptr )
+        {
+            pCursorShell->StartAction();
+            pCursorShell->ClearMark();
+            pCursorShell->EndAction();
+            return true;
+        }
+    }
+    return true;
+}
+
+sal_Bool SAL_CALL SwAccessibleTable::unselectColumn( sal_Int32 column )
+{
+    SolarMutexGuard g;
+
+    if( isAccessibleSelected( 0 , column ) &&  isAccessibleSelected( getAccessibleRowCount()-1,column))
+    {
+        SwCursorShell* pCursorShell = GetCursorShell();
+        if( pCursorShell != nullptr )
+        {
+            pCursorShell->StartAction();
+            pCursorShell->ClearMark();
+            pCursorShell->EndAction();
+            return true;
+        }
+    }
+    return true;
+}
+
+// #i77106# - implementation of class <SwAccessibleTableColHeaders>
+SwAccessibleTableColHeaders::SwAccessibleTableColHeaders(
+        std::shared_ptr<SwAccessibleMap> const& pMap,
+        const SwTabFrame *const pTabFrame)
+    : SwAccessibleTable(pMap, pTabFrame)
+{
+    SolarMutexGuard aGuard;
+
+    const SwFrameFormat* pFrameFormat = pTabFrame->GetFormat();
+    if(pFrameFormat)
+        StartListening(const_cast<SwFrameFormat*>(pFrameFormat)->GetNotifier());
+    const OUString aName = pFrameFormat->GetName() + "-ColumnHeaders";
+
+    SetName( aName + "-" + OUString::number( pTabFrame->GetPhyPageNum() ) );
+
+    const OUString sArg2( GetFormattedPageNumber() );
+
+    SetDesc( GetResource( STR_ACCESS_TABLE_DESC, &aName, &sArg2 ) );
+
+    NotRegisteredAtAccessibleMap(); // #i85634#
+}
+
+std::unique_ptr<SwAccessibleTableData_Impl> SwAccessibleTableColHeaders::CreateNewTableData()
+{
+    const SwTabFrame* pTabFrame = static_cast<const SwTabFrame*>( GetFrame() );
+    return std::unique_ptr<SwAccessibleTableData_Impl>(new SwAccessibleTableData_Impl( *(GetMap()), pTabFrame, IsInPagePreview(), true ));
+}
+
+void SwAccessibleTableColHeaders::Notify(const SfxHint& )
+{
+}
+
+// XInterface
+uno::Any SAL_CALL SwAccessibleTableColHeaders::queryInterface( const uno::Type& aType )
+{
+    return SwAccessibleTable::queryInterface( aType );
+}
+
+// XAccessibleContext
+sal_Int32 SAL_CALL SwAccessibleTableColHeaders::getAccessibleChildCount()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    sal_Int32 nCount = 0;
+
+    const SwTabFrame* pTabFrame = static_cast<const SwTabFrame*>( GetFrame() );
+    const SwAccessibleChildSList aVisList( GetVisArea(), *pTabFrame, *(GetMap()) );
+    SwAccessibleChildSList::const_iterator aIter( aVisList.begin() );
+    while( aIter != aVisList.end() )
+    {
+        const SwAccessibleChild& rLower = *aIter;
+        if( rLower.IsAccessible( IsInPagePreview() ) )
+        {
+            nCount++;
+        }
+        else if( rLower.GetSwFrame() )
+        {
+            // There are no unaccessible SdrObjects that count
+            if ( !rLower.GetSwFrame()->IsRowFrame() ||
+                 pTabFrame->IsInHeadline( *(rLower.GetSwFrame()) ) )
+            {
+                nCount += SwAccessibleFrame::GetChildCount( *(GetMap()),
+                                                            GetVisArea(),
+                                                            rLower.GetSwFrame(),
+                                                            IsInPagePreview() );
+            }
+        }
+        ++aIter;
+    }
+
+    return nCount;
+}
+
+uno::Reference< XAccessible> SAL_CALL
+        SwAccessibleTableColHeaders::getAccessibleChild (sal_Int32 nIndex)
+{
+    if ( nIndex < 0 || nIndex >= getAccessibleChildCount() )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    return SwAccessibleTable::getAccessibleChild( nIndex );
+}
+
+// XAccessibleTable
+uno::Reference< XAccessibleTable >
+        SAL_CALL SwAccessibleTableColHeaders::getAccessibleRowHeaders()
+{
+    return uno::Reference< XAccessibleTable >();
+}
+
+uno::Reference< XAccessibleTable >
+        SAL_CALL SwAccessibleTableColHeaders::getAccessibleColumnHeaders()
+{
+    return uno::Reference< XAccessibleTable >();
+}
+
+// XServiceInfo
+
+OUString SAL_CALL SwAccessibleTableColHeaders::getImplementationName()
+{
+    static constexpr OUStringLiteral sImplName
+        = u"com.sun.star.comp.Writer.SwAccessibleTableColumnHeadersView";
+    return sImplName;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acctable.hxx b/sw/source/core/access/acctable.hxx
new file mode 100644
index 000000000..c31ecca95
--- /dev/null
+++ b/sw/source/core/access/acctable.hxx
@@ -0,0 +1,277 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/accessibility/XAccessibleTable.hpp>
+#include <com/sun/star/accessibility/XAccessibleTableSelection.hpp>
+#include <vector>
+#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
+
+#include <svl/listener.hxx>
+
+#include "acccontext.hxx"
+
+class SwTabFrame;
+class SwAccessibleTableData_Impl;
+class SwTableBox;
+class SwSelBoxes;
+
+namespace sw::access {
+    class SwAccessibleChild;
+}
+
+class SwAccessibleTable :
+        public SwAccessibleContext,
+        public css::accessibility::XAccessibleTable,
+        public css::accessibility::XAccessibleSelection,
+        public css::accessibility::XAccessibleTableSelection,
+        public SvtListener
+{
+    std::unique_ptr<SwAccessibleTableData_Impl> mpTableData;    // the table's data, protected by SolarMutex
+    OUString m_sDesc;
+    const SwSelBoxes *GetSelBoxes() const;
+
+    void FireTableChangeEvent( const SwAccessibleTableData_Impl& rTableData );
+
+    /** get the SwTableBox* for the given child */
+    const SwTableBox* GetTableBox( sal_Int32 ) const;
+
+    bool IsChildSelected( sal_Int32 nChildIndex ) const;
+
+    sal_Int32 GetIndexOfSelectedChild( sal_Int32 nSelectedChildIndex ) const;
+
+protected:
+    // Set states for getAccessibleStateSet.
+    // This derived class additionally sets MULTISELECTABLE(+)
+    virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet ) override;
+
+    virtual ~SwAccessibleTable() override;
+
+    // #i77106#
+    void SetDesc( const OUString& sNewDesc )
+    {
+        m_sDesc = sNewDesc;
+    }
+
+    virtual std::unique_ptr<SwAccessibleTableData_Impl> CreateNewTableData(); // #i77106#
+
+    // force update of table data
+    void UpdateTableData();
+
+    // remove the current table data
+    void ClearTableData();
+
+    // get table data, update if necessary
+    inline SwAccessibleTableData_Impl& GetTableData();
+
+    // Is table data evailable?
+    bool HasTableData() const { return (mpTableData != nullptr); }
+
+    virtual void Notify(const SfxHint&) override;
+
+public:
+    SwAccessibleTable(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                      const SwTabFrame* pTableFrame);
+
+    // XInterface
+
+    // (XInterface methods need to be implemented to disambiguate
+    // between those inherited through SwAccessibleContext and
+    // XAccessibleTable).
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        const css::uno::Type& aType ) override;
+
+    virtual void SAL_CALL acquire(  ) noexcept override
+        { SwAccessibleContext::acquire(); };
+
+    virtual void SAL_CALL release(  ) noexcept override
+        { SwAccessibleContext::release(); };
+
+    // XTypeProvider
+    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleContext
+
+    /// Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    // XAccessibleTable
+
+    virtual sal_Int32 SAL_CALL getAccessibleRowCount() override;
+    virtual sal_Int32 SAL_CALL getAccessibleColumnCount(  ) override;
+    virtual OUString SAL_CALL getAccessibleRowDescription(
+            sal_Int32 nRow ) override;
+    virtual OUString SAL_CALL getAccessibleColumnDescription(
+            sal_Int32 nColumn ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleRowExtentAt(
+            sal_Int32 nRow, sal_Int32 nColumn ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleColumnExtentAt(
+               sal_Int32 nRow, sal_Int32 nColumn ) override;
+    virtual css::uno::Reference<
+                css::accessibility::XAccessibleTable >
+        SAL_CALL getAccessibleRowHeaders(  ) override;
+    virtual css::uno::Reference<
+                css::accessibility::XAccessibleTable >
+        SAL_CALL getAccessibleColumnHeaders(  ) override;
+    virtual css::uno::Sequence< sal_Int32 > SAL_CALL
+        getSelectedAccessibleRows(  ) override;
+    virtual css::uno::Sequence< sal_Int32 > SAL_CALL
+        getSelectedAccessibleColumns(  ) override;
+    virtual sal_Bool SAL_CALL isAccessibleRowSelected( sal_Int32 nRow ) override;
+    virtual sal_Bool SAL_CALL isAccessibleColumnSelected( sal_Int32 nColumn ) override;
+    virtual css::uno::Reference<
+        css::accessibility::XAccessible > SAL_CALL
+        getAccessibleCellAt( sal_Int32 nRow, sal_Int32 nColumn ) override;
+    virtual css::uno::Reference<
+        css::accessibility::XAccessible > SAL_CALL
+        getAccessibleCaption(  ) override;
+    virtual css::uno::Reference<
+        css::accessibility::XAccessible > SAL_CALL
+        getAccessibleSummary(  ) override;
+    virtual sal_Bool SAL_CALL isAccessibleSelected(
+            sal_Int32 nRow, sal_Int32 nColumn ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleIndex(
+            sal_Int32 nRow, sal_Int32 nColumn ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleRow( sal_Int32 nChildIndex ) override;
+    virtual sal_Int32 SAL_CALL getAccessibleColumn( sal_Int32 nChildIndex ) override;
+    // XAccessibleTableSelection
+    virtual sal_Bool SAL_CALL selectRow( sal_Int32 row ) override ;
+    virtual sal_Bool SAL_CALL selectColumn( sal_Int32 column ) override ;
+    virtual sal_Bool SAL_CALL unselectRow( sal_Int32 row ) override;
+    virtual sal_Bool SAL_CALL unselectColumn( sal_Int32 column ) override;
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object.
+    */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class.
+    */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service.
+    */
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // C++ interface
+
+    // The object has been moved by the layout
+    virtual void InvalidatePosOrSize( const SwRect& rOldBox ) override;
+
+    // The object is not visible any longer and should be destroyed
+    virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true) override;
+
+    virtual void DisposeChild( const sw::access::SwAccessibleChild& rFrameOrObj,
+                               bool bRecursive, bool bCanSkipInvisible ) override;
+    virtual void InvalidateChildPosOrSize( const sw::access::SwAccessibleChild& rFrameOrObj,
+                                           const SwRect& rFrame ) override;
+
+    // XAccessibleSelection
+
+    virtual void SAL_CALL selectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual sal_Bool SAL_CALL isAccessibleChildSelected(
+        sal_Int32 nChildIndex ) override;
+
+    virtual void SAL_CALL clearAccessibleSelection(  ) override;
+
+    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+
+    virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    // index has to be treated as global child index.
+    virtual void SAL_CALL deselectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    // XAccessibleComponent
+    sal_Int32 SAL_CALL getBackground() override;
+    typedef std::vector< std::pair<SwAccessibleContext*,
+        css::uno::WeakReference<css::accessibility::XAccessible> > > Cells_t;
+    Cells_t m_vecCellAdd;
+    Cells_t m_vecCellRemove;
+    void FireSelectionEvent( );
+    void AddSelectionCell(SwAccessibleContext*, bool bAddOrRemove);
+};
+
+inline SwAccessibleTableData_Impl& SwAccessibleTable::GetTableData()
+{
+    if( !mpTableData )
+        UpdateTableData();
+    return *mpTableData;
+}
+
+// #i77106# - subclass to represent table column headers
+class SwAccessibleTableColHeaders : public SwAccessibleTable
+{
+protected:
+    virtual ~SwAccessibleTableColHeaders() override
+    {}
+
+    virtual std::unique_ptr<SwAccessibleTableData_Impl> CreateNewTableData() override;
+    virtual void Notify(const SfxHint&) override;
+
+public:
+    SwAccessibleTableColHeaders(std::shared_ptr<SwAccessibleMap> const& pMap,
+                                const SwTabFrame *pTabFrame);
+
+    // XInterface
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        const css::uno::Type& aType ) override;
+
+    // XAccessibleContext
+
+    /// Return the number of currently visible children.
+    virtual sal_Int32 SAL_CALL getAccessibleChildCount() override;
+
+    /// Return the specified child or NULL if index is invalid.
+    virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
+        getAccessibleChild (sal_Int32 nIndex) override;
+
+    // XAccessibleTable
+
+    virtual css::uno::Reference<
+                css::accessibility::XAccessibleTable >
+        SAL_CALL getAccessibleRowHeaders(  ) override;
+    virtual css::uno::Reference<
+                css::accessibility::XAccessibleTable >
+        SAL_CALL getAccessibleColumnHeaders(  ) override;
+
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object.
+    */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acctextframe.cxx b/sw/source/core/access/acctextframe.cxx
new file mode 100644
index 000000000..a5d6d43df
--- /dev/null
+++ b/sw/source/core/access/acctextframe.cxx
@@ -0,0 +1,319 @@
+/* -*- 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 <com/sun/star/accessibility/XAccessibleContext.hpp>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <vcl/svapp.hxx>
+#include <sal/log.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleRelation.hpp>
+#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
+#include <com/sun/star/accessibility/XAccessibleRelationSet.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <frmfmt.hxx>
+#include <flyfrm.hxx>
+#include <accmap.hxx>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <hints.hxx>
+#include "acctextframe.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+using utl::AccessibleRelationSetHelper;
+using ::com::sun::star::accessibility::XAccessibleContext;
+
+SwAccessibleTextFrame::SwAccessibleTextFrame(
+        std::shared_ptr<SwAccessibleMap> const& pInitMap,
+        const SwFlyFrame& rFlyFrame  ) :
+    SwAccessibleFrameBase( pInitMap, AccessibleRole::TEXT_FRAME, &rFlyFrame )
+{
+    const SwFlyFrameFormat* pFlyFrameFormat = rFlyFrame.GetFormat();
+    msTitle = pFlyFrameFormat->GetObjTitle();
+
+    msDesc = pFlyFrameFormat->GetObjDescription();
+    if ( msDesc.isEmpty() &&
+         msTitle != GetName() )
+    {
+        msDesc = msTitle;
+    }
+}
+
+SwAccessibleTextFrame::~SwAccessibleTextFrame()
+{
+}
+
+void SwAccessibleTextFrame::Notify(const SfxHint& rHint)
+{
+    if(rHint.GetId() == SfxHintId::Dying)
+        EndListeningAll();
+    else if (rHint.GetId() == SfxHintId::SwLegacyModify)
+    {
+        auto pLegacyModifyHint = static_cast<const sw::LegacyModifyHint*>(&rHint);
+        const sal_uInt16 nWhich = pLegacyModifyHint->GetWhich();
+        const SwFlyFrame* pFlyFrame = static_cast<const SwFlyFrame*>(GetFrame());
+        switch(nWhich)
+        {
+            // #i73249#
+            case RES_TITLE_CHANGED:
+            {
+                OUString sOldTitle, sNewTitle;
+                const SwStringMsgPoolItem *pOldItem = dynamic_cast<const SwStringMsgPoolItem*>(pLegacyModifyHint->m_pOld);
+                if(pOldItem)
+                    sOldTitle = pOldItem->GetString();
+                const SwStringMsgPoolItem *pNewItem = dynamic_cast<const SwStringMsgPoolItem*>(pLegacyModifyHint->m_pNew);
+                if(pNewItem)
+                    sNewTitle = pNewItem->GetString();
+                if(sOldTitle == sNewTitle)
+                    break;
+                msTitle = sNewTitle;
+                AccessibleEventObject aEvent;
+                aEvent.EventId = AccessibleEventId::NAME_CHANGED;
+                aEvent.OldValue <<= sOldTitle;
+                aEvent.NewValue <<= msTitle;
+                FireAccessibleEvent( aEvent );
+
+                const SwFlyFrameFormat* pFlyFrameFormat = pFlyFrame->GetFormat();
+                if(!pFlyFrameFormat || !pFlyFrameFormat->GetObjDescription().isEmpty())
+                    break;
+                [[fallthrough]];
+            }
+            case RES_DESCRIPTION_CHANGED:
+            {
+                if(pFlyFrame)
+                {
+                    const OUString sOldDesc(msDesc);
+
+                    const SwFlyFrameFormat* pFlyFrameFormat = pFlyFrame->GetFormat();
+                    const OUString& rDesc = pFlyFrameFormat->GetObjDescription();
+                    msDesc = rDesc;
+                    if(msDesc.isEmpty() && msTitle != GetName())
+                        msDesc = msTitle;
+
+                    if(msDesc != sOldDesc)
+                    {
+                        AccessibleEventObject aEvent;
+                        aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED;
+                        aEvent.OldValue <<= sOldDesc;
+                        aEvent.NewValue <<= msDesc;
+                        FireAccessibleEvent(aEvent);
+                    }
+                }
+            }
+        }
+    }
+}
+
+// XInterface
+
+css::uno::Any SAL_CALL
+    SwAccessibleTextFrame::queryInterface (const css::uno::Type & rType)
+{
+    css::uno::Any aReturn = SwAccessibleContext::queryInterface (rType);
+    if ( ! aReturn.hasValue())
+        aReturn = ::cppu::queryInterface (rType,
+            static_cast< css::accessibility::XAccessibleSelection* >(this)
+            );
+    return aReturn;
+}
+
+void SAL_CALL
+    SwAccessibleTextFrame::acquire()
+    noexcept
+{
+    SwAccessibleContext::acquire ();
+}
+
+void SAL_CALL
+    SwAccessibleTextFrame::release()
+    noexcept
+{
+    SwAccessibleContext::release ();
+}
+
+// XAccessibleSelection
+
+void SAL_CALL SwAccessibleTextFrame::selectAccessibleChild( sal_Int32 )
+{
+    SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::selectAccessibleChild( sal_Int32 )> - missing implementation");
+}
+
+sal_Bool SAL_CALL SwAccessibleTextFrame::isAccessibleChildSelected( sal_Int32 nChildIndex )
+{
+    SolarMutexGuard g;
+
+    uno::Reference<XAccessible> xAcc = getAccessibleChild( nChildIndex );
+    uno::Reference<XAccessibleContext> xContext;
+    if( xAcc.is() )
+        xContext = xAcc->getAccessibleContext();
+
+    if( xContext.is() )
+    {
+        if( xContext->getAccessibleRole() == AccessibleRole::PARAGRAPH )
+        {
+            uno::Reference< css::accessibility::XAccessibleText >
+                xText(xAcc, uno::UNO_QUERY);
+            if( xText.is() )
+            {
+                if( xText->getSelectionStart() >= 0 ) return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+void SAL_CALL SwAccessibleTextFrame::clearAccessibleSelection(  )
+{
+    SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::clearAccessibleSelection()> - missing implementation");
+}
+
+void SAL_CALL SwAccessibleTextFrame::selectAllAccessibleChildren(  )
+{
+    SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::selectAllAccessibleChildren()> - missing implementation");
+}
+
+sal_Int32 SAL_CALL SwAccessibleTextFrame::getSelectedAccessibleChildCount()
+{
+    sal_Int32 nCount = 0;
+    sal_Int32 TotalCount = getAccessibleChildCount();
+    for( sal_Int32 i = 0; i < TotalCount; i++ )
+        if( isAccessibleChildSelected(i) ) nCount++;
+
+    return nCount;
+}
+
+uno::Reference<XAccessible> SAL_CALL SwAccessibleTextFrame::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex )
+{
+    SolarMutexGuard g;
+
+    if ( nSelectedChildIndex > getSelectedAccessibleChildCount() )
+        throw lang::IndexOutOfBoundsException();
+    sal_Int32 i1, i2;
+    for( i1 = 0, i2 = 0; i1 < getAccessibleChildCount(); i1++ )
+        if( isAccessibleChildSelected(i1) )
+        {
+            if( i2 == nSelectedChildIndex )
+                return getAccessibleChild( i1 );
+            i2++;
+        }
+    return uno::Reference<XAccessible>();
+}
+
+void SAL_CALL SwAccessibleTextFrame::deselectAccessibleChild( sal_Int32 )
+{
+    SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::selectAllAccessibleChildren( sal_Int32 )> - missing implementation");
+}
+
+// #i73249#
+OUString SAL_CALL SwAccessibleTextFrame::getAccessibleName()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    if ( !msTitle.isEmpty() )
+    {
+        return msTitle;
+    }
+
+    return SwAccessibleFrameBase::getAccessibleName();
+}
+
+OUString SAL_CALL SwAccessibleTextFrame::getAccessibleDescription()
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    return msDesc;
+
+}
+
+OUString SAL_CALL SwAccessibleTextFrame::getImplementationName()
+{
+    return "com.sun.star.comp.Writer.SwAccessibleTextFrameView";
+}
+
+sal_Bool SAL_CALL SwAccessibleTextFrame::supportsService(const OUString& sTestServiceName)
+{
+    return cppu::supportsService(this, sTestServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL SwAccessibleTextFrame::getSupportedServiceNames()
+{
+    return { "com.sun.star.text.AccessibleTextFrameView", sAccessibleServiceName };
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleTextFrame::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XAccessibleRelationSet
+
+SwFlyFrame* SwAccessibleTextFrame::getFlyFrame() const
+{
+    SwFlyFrame* pFlyFrame = nullptr;
+
+    const SwFrame* pFrame = GetFrame();
+    assert(pFrame);
+    if( pFrame->IsFlyFrame() )
+    {
+        pFlyFrame = static_cast<SwFlyFrame*>( const_cast<SwFrame*>( pFrame ) );
+    }
+
+    return pFlyFrame;
+}
+
+AccessibleRelation SwAccessibleTextFrame::makeRelation( sal_Int16 nType, const SwFlyFrame* pFrame )
+{
+    uno::Sequence<uno::Reference<XInterface> > aSequence { GetMap()->GetContext( pFrame ) };
+    return AccessibleRelation( nType, aSequence );
+}
+
+uno::Reference<XAccessibleRelationSet> SAL_CALL SwAccessibleTextFrame::getAccessibleRelationSet( )
+{
+    SolarMutexGuard aGuard;
+
+    ThrowIfDisposed();
+
+    // get the frame, and insert prev/next relations into helper
+
+    rtl::Reference<AccessibleRelationSetHelper> pHelper = new AccessibleRelationSetHelper();
+
+    SwFlyFrame* pFlyFrame = getFlyFrame();
+    assert(pFlyFrame);
+
+    const SwFlyFrame* pPrevFrame = pFlyFrame->GetPrevLink();
+    if( pPrevFrame != nullptr )
+        pHelper->AddRelation( makeRelation(
+            AccessibleRelationType::CONTENT_FLOWS_FROM, pPrevFrame ) );
+
+    const SwFlyFrame* pNextFrame = pFlyFrame->GetNextLink();
+    if( pNextFrame != nullptr )
+        pHelper->AddRelation( makeRelation(
+            AccessibleRelationType::CONTENT_FLOWS_TO, pNextFrame ) );
+
+    return pHelper;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/acctextframe.hxx b/sw/source/core/access/acctextframe.hxx
new file mode 100644
index 000000000..050970f62
--- /dev/null
+++ b/sw/source/core/access/acctextframe.hxx
@@ -0,0 +1,116 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_ACCTEXTFRAME_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_ACCTEXTFRAME_HXX
+
+#include "accframebase.hxx"
+
+#include <com/sun/star/accessibility/XAccessibleSelection.hpp>
+
+class SwFlyFrame;
+
+class SwAccessibleTextFrame : public SwAccessibleFrameBase,
+        public css::accessibility::XAccessibleSelection
+{
+private:
+    // #i73249#
+    OUString msTitle;
+    OUString msDesc;
+
+protected:
+    virtual ~SwAccessibleTextFrame() override;
+    virtual void Notify(const SfxHint&) override;
+
+public:
+    SwAccessibleTextFrame(std::shared_ptr<SwAccessibleMap> const& pInitMap,
+                          const SwFlyFrame& rFlyFrame);
+
+    virtual css::uno::Any SAL_CALL queryInterface(
+        css::uno::Type const & rType ) override;
+    virtual void SAL_CALL acquire() noexcept override;
+    virtual void SAL_CALL release() noexcept override;
+    // XAccessibleSelection
+    virtual void SAL_CALL selectAccessibleChild(
+        sal_Int32 nChildIndex ) override;
+
+    virtual sal_Bool SAL_CALL isAccessibleChildSelected(
+        sal_Int32 nChildIndex ) override;
+
+    virtual void SAL_CALL clearAccessibleSelection(  ) override;
+
+    virtual void SAL_CALL selectAllAccessibleChildren(  ) override;
+
+    virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  ) override;
+
+    virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    virtual void SAL_CALL deselectAccessibleChild(
+        sal_Int32 nSelectedChildIndex ) override;
+
+    // XAccessibleContext
+
+    // #i73249# - Return the object's current name.
+    virtual OUString SAL_CALL
+        getAccessibleName() override;
+    /// Return this object's description.
+    virtual OUString SAL_CALL
+        getAccessibleDescription() override;
+
+    // XServiceInfo
+
+    /** Returns an identifier for the implementation of this object.
+    */
+    virtual OUString SAL_CALL
+        getImplementationName() override;
+
+    /** Return whether the specified service is supported by this class.
+    */
+    virtual sal_Bool SAL_CALL
+        supportsService (const OUString& sServiceName) override;
+
+    /** Returns a list of all supported services.  In this case that is just
+        the AccessibleContext service.
+    */
+    virtual css::uno::Sequence< OUString> SAL_CALL
+        getSupportedServiceNames() override;
+
+    // XTypeProvider
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XAccessibleContext::getAccessibleRelationSet
+
+    // text frame may have accessible relations to their
+    // predecessor/successor frames
+
+private:
+    // helper methods for getAccessibleRelationSet:
+    SwFlyFrame* getFlyFrame() const;
+
+    css::accessibility::AccessibleRelation makeRelation(
+        sal_Int16 nType, const SwFlyFrame* pFrame );
+
+public:
+    virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet> SAL_CALL getAccessibleRelationSet() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/parachangetrackinginfo.cxx b/sw/source/core/access/parachangetrackinginfo.cxx
new file mode 100644
index 000000000..0943dc15e
--- /dev/null
+++ b/sw/source/core/access/parachangetrackinginfo.cxx
@@ -0,0 +1,205 @@
+/* -*- 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 "parachangetrackinginfo.hxx"
+
+#include <wrong.hxx>
+#include <com/sun/star/text/TextMarkupType.hpp>
+#include <osl/diagnose.h>
+
+#include <txtfrm.hxx>
+#include <rootfrm.hxx>
+#include <ndtxt.hxx>
+#include <IDocumentRedlineAccess.hxx>
+#include <docary.hxx>
+#include <redline.hxx>
+
+#include <algorithm>
+
+namespace {
+    void initChangeTrackTextMarkupLists( const SwTextFrame& rTextFrame,
+                                         std::unique_ptr<SwWrongList>& opChangeTrackInsertionTextMarkupList,
+                                         std::unique_ptr<SwWrongList>& opChangeTrackDeletionTextMarkupList,
+                                         std::unique_ptr<SwWrongList>& opChangeTrackFormatChangeTextMarkupList )
+    {
+        opChangeTrackInsertionTextMarkupList.reset( new SwWrongList( WRONGLIST_CHANGETRACKING ) );
+        opChangeTrackDeletionTextMarkupList.reset( new SwWrongList( WRONGLIST_CHANGETRACKING ) );
+        opChangeTrackFormatChangeTextMarkupList.reset( new SwWrongList( WRONGLIST_CHANGETRACKING ) );
+
+        if (!rTextFrame.GetTextNodeFirst())
+        {
+            OSL_FAIL( "<initChangeTrackTextMarkupLists(..) - missing <SwTextNode> instance!" );
+            return;
+        }
+        // sw_redlinehide: the first node is sufficient - there are only
+        // multiple ones in Hide case and the code below returns early then
+        const SwTextNode& rTextNode(*(rTextFrame.GetTextNodeFirst()));
+
+        const IDocumentRedlineAccess& rIDocChangeTrack( rTextNode.getIDocumentRedlineAccess() );
+
+        if (!IDocumentRedlineAccess::IsShowChanges(rIDocChangeTrack.GetRedlineFlags())
+           || rTextFrame.getRootFrame()->IsHideRedlines()
+           || rIDocChangeTrack.GetRedlineTable().empty())
+        {
+            // nothing to do --> empty change track text markup lists.
+            return;
+        }
+
+        const SwRedlineTable::size_type nIdxOfFirstRedlineForTextNode =
+                    rIDocChangeTrack.GetRedlinePos( rTextNode, RedlineType::Any );
+        if ( nIdxOfFirstRedlineForTextNode == SwRedlineTable::npos )
+        {
+            // nothing to do --> empty change track text markup lists.
+            return;
+        }
+
+        // sw_redlinehide: rely on the Hide early return above & cast
+        // TextFrameIndex to SwIndex directly
+        const sal_Int32 nTextFrameTextStartPos = rTextFrame.IsFollow()
+            ? sal_Int32(rTextFrame.GetOffset())
+            : 0;
+        const sal_Int32 nTextFrameTextEndPos = rTextFrame.HasFollow()
+            ? sal_Int32(rTextFrame.GetFollow()->GetOffset())
+            : rTextFrame.GetText().getLength();
+
+        // iteration over the redlines which overlap with the text node.
+        const SwRedlineTable& rRedlineTable = rIDocChangeTrack.GetRedlineTable();
+        const SwRedlineTable::size_type nRedlineCount( rRedlineTable.size() );
+        for ( SwRedlineTable::size_type nActRedline = nIdxOfFirstRedlineForTextNode;
+              nActRedline < nRedlineCount;
+              ++nActRedline)
+        {
+            const SwRangeRedline* pActRedline = rRedlineTable[ nActRedline ];
+            if ( pActRedline->Start()->nNode > rTextNode.GetIndex() )
+            {
+                break;
+            }
+
+            sal_Int32 nTextNodeChangeTrackStart(COMPLETE_STRING);
+            sal_Int32 nTextNodeChangeTrackEnd(COMPLETE_STRING);
+            pActRedline->CalcStartEnd( rTextNode.GetIndex(),
+                                       nTextNodeChangeTrackStart,
+                                       nTextNodeChangeTrackEnd );
+            if ( nTextNodeChangeTrackStart > nTextFrameTextEndPos ||
+                 nTextNodeChangeTrackEnd < nTextFrameTextStartPos )
+            {
+                // Consider only redlines which overlap with the text frame's text.
+                continue;
+            }
+
+            SwWrongList* pMarkupList( nullptr );
+            switch ( pActRedline->GetType() )
+            {
+                case RedlineType::Insert:
+                {
+                    pMarkupList = opChangeTrackInsertionTextMarkupList.get();
+                }
+                break;
+                case RedlineType::Delete:
+                {
+                    pMarkupList = opChangeTrackDeletionTextMarkupList.get();
+                }
+                break;
+                case RedlineType::Format:
+                {
+                    pMarkupList = opChangeTrackFormatChangeTextMarkupList.get();
+                }
+                break;
+                default:
+                {
+                    // other types are not considered
+                }
+            }
+            if ( pMarkupList )
+            {
+                const sal_Int32 nTextFrameChangeTrackStart =
+                    std::max(nTextNodeChangeTrackStart, nTextFrameTextStartPos);
+
+                const sal_Int32 nTextFrameChangeTrackEnd =
+                    std::min(nTextNodeChangeTrackEnd, nTextFrameTextEndPos);
+
+                pMarkupList->Insert( OUString(), nullptr,
+                                     nTextFrameChangeTrackStart,
+                                     nTextFrameChangeTrackEnd - nTextFrameChangeTrackStart,
+                                     pMarkupList->Count() );
+            }
+        } // eof iteration over the redlines which overlap with the text node
+    }
+} // eof anonymous namespace
+
+SwParaChangeTrackingInfo::SwParaChangeTrackingInfo( const SwTextFrame& rTextFrame )
+    : mrTextFrame( rTextFrame )
+{
+}
+
+SwParaChangeTrackingInfo::~SwParaChangeTrackingInfo()
+{
+    reset();
+}
+
+void SwParaChangeTrackingInfo::reset()
+{
+    mpChangeTrackInsertionTextMarkupList.reset();
+    mpChangeTrackDeletionTextMarkupList.reset();
+    mpChangeTrackFormatChangeTextMarkupList.reset();
+}
+
+const SwWrongList* SwParaChangeTrackingInfo::getChangeTrackingTextMarkupList( const sal_Int32 nTextMarkupType )
+{
+    SwWrongList* pChangeTrackingTextMarkupList = nullptr;
+
+    if ( mpChangeTrackInsertionTextMarkupList == nullptr )
+    {
+        OSL_ENSURE( mpChangeTrackDeletionTextMarkupList == nullptr,
+                "<SwParaChangeTrackingInfo::getChangeTrackingTextMarkupList(..) - <mpChangeTrackDeletionTextMarkupList> expected to be NULL." );
+        OSL_ENSURE( mpChangeTrackFormatChangeTextMarkupList == nullptr,
+                "<SwParaChangeTrackingInfo::getChangeTrackingTextMarkupList(..) - <mpChangeTrackFormatChangeTextMarkupList> expected to be NULL." );
+        initChangeTrackTextMarkupLists( mrTextFrame,
+                                        mpChangeTrackInsertionTextMarkupList,
+                                        mpChangeTrackDeletionTextMarkupList,
+                                        mpChangeTrackFormatChangeTextMarkupList );
+    }
+
+    switch ( nTextMarkupType )
+    {
+        case css::text::TextMarkupType::TRACK_CHANGE_INSERTION:
+        {
+            pChangeTrackingTextMarkupList = mpChangeTrackInsertionTextMarkupList.get();
+        }
+        break;
+        case css::text::TextMarkupType::TRACK_CHANGE_DELETION:
+        {
+            pChangeTrackingTextMarkupList = mpChangeTrackDeletionTextMarkupList.get();
+        }
+        break;
+        case css::text::TextMarkupType::TRACK_CHANGE_FORMATCHANGE:
+        {
+            pChangeTrackingTextMarkupList = mpChangeTrackFormatChangeTextMarkupList.get();
+        }
+        break;
+        default:
+        {
+            OSL_FAIL( "<SwParaChangeTrackingInfo::getChangeTrackingTextMarkupList(..)> - misusage - unexpected text markup type for change tracking." );
+        }
+    }
+
+    return pChangeTrackingTextMarkupList;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/parachangetrackinginfo.hxx b/sw/source/core/access/parachangetrackinginfo.hxx
new file mode 100644
index 000000000..30f020125
--- /dev/null
+++ b/sw/source/core/access/parachangetrackinginfo.hxx
@@ -0,0 +1,51 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_PARACHANGETRACKINGINFO_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_PARACHANGETRACKINGINFO_HXX
+
+#include <sal/types.h>
+#include <memory>
+
+class SwTextFrame;
+class SwWrongList;
+
+class SwParaChangeTrackingInfo
+{
+    public:
+        explicit SwParaChangeTrackingInfo( const SwTextFrame& rTextFrame );
+        ~SwParaChangeTrackingInfo();
+
+        void reset();
+
+        const SwWrongList* getChangeTrackingTextMarkupList( const sal_Int32 nTextMarkupType );
+
+    private:
+        SwParaChangeTrackingInfo( const SwParaChangeTrackingInfo& ) = delete;
+        SwParaChangeTrackingInfo& operator=( const SwParaChangeTrackingInfo& ) = delete;
+
+        const SwTextFrame& mrTextFrame;
+
+        std::unique_ptr<SwWrongList> mpChangeTrackInsertionTextMarkupList;
+        std::unique_ptr<SwWrongList> mpChangeTrackDeletionTextMarkupList;
+        std::unique_ptr<SwWrongList> mpChangeTrackFormatChangeTextMarkupList;
+};
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/core/access/textmarkuphelper.cxx b/sw/source/core/access/textmarkuphelper.cxx
new file mode 100644
index 000000000..5329241c6
--- /dev/null
+++ b/sw/source/core/access/textmarkuphelper.cxx
@@ -0,0 +1,221 @@
+/* -*- 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 )
+{
+}
+
+sal_Int32 SwTextMarkupHelper::getTextMarkupCount( const sal_Int32 nTextMarkupType )
+{
+    sal_Int32 nTextMarkupCount( 0 );
+
+    if (mpTextMarkupList)
+    {
+        nTextMarkupCount = mpTextMarkupList->Count();
+    }
+    else
+    {
+        assert(m_pTextFrame);
+        SwWrongList const* (SwTextNode::*const pGetWrongList)() const = getTextMarkupFunc(nTextMarkupType);
+        if (pGetWrongList)
+        {
+            sw::WrongListIteratorCounter iter(*m_pTextFrame, pGetWrongList);
+            nTextMarkupCount = iter.GetElementCount();
+        }
+    }
+
+    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;
+    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));
+        }
+    }
+
+    if (pIter)
+    {
+        auto const oElement(pIter->GetElementAt(nTextMarkupIndex));
+        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;
+    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));
+        }
+    }
+
+    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: */
diff --git a/sw/source/core/access/textmarkuphelper.hxx b/sw/source/core/access/textmarkuphelper.hxx
new file mode 100644
index 000000000..6db3f9bc0
--- /dev/null
+++ b/sw/source/core/access/textmarkuphelper.hxx
@@ -0,0 +1,70 @@
+/* -*- 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 .
+ */
+#ifndef INCLUDED_SW_SOURCE_CORE_ACCESS_TEXTMARKUPHELPER_HXX
+#define INCLUDED_SW_SOURCE_CORE_ACCESS_TEXTMARKUPHELPER_HXX
+
+#include <sal/types.h>
+#include <com/sun/star/uno/Sequence.h>
+
+namespace com::sun::star::accessibility {
+    struct TextSegment;
+}
+
+class SwAccessiblePortionData;
+class SwTextFrame;
+class SwWrongList; // #i108125#
+
+class SwTextMarkupHelper
+{
+    public:
+        SwTextMarkupHelper( const SwAccessiblePortionData& rPortionData,
+                            const SwTextFrame& rTextFrame);
+        SwTextMarkupHelper( const SwAccessiblePortionData& rPortionData,
+                            const SwWrongList& rTextMarkupList ); // #i108125#
+
+        /// @throws css::lang::IllegalArgumentException
+        /// @throws css::uno::RuntimeException
+        sal_Int32 getTextMarkupCount( const sal_Int32 nTextMarkupType );
+
+        /// @throws css::lang::IndexOutOfBoundsException
+        /// @throws css::lang::IllegalArgumentException
+        /// @throws css::uno::RuntimeException
+        css::accessibility::TextSegment getTextMarkup(
+                                            const sal_Int32 nTextMarkupIndex,
+                                            const sal_Int32 nTextMarkupType );
+
+        /// @throws css::lang::IndexOutOfBoundsException
+        /// @throws css::lang::IllegalArgumentException
+        /// @throws css::uno::RuntimeException
+        css::uno::Sequence< css::accessibility::TextSegment >
+                getTextMarkupAtIndex( const sal_Int32 nCharIndex,
+                                      const sal_Int32 nTextMarkupType );
+
+    private:
+        SwTextMarkupHelper( const SwTextMarkupHelper& ) = delete;
+        SwTextMarkupHelper& operator=( const SwTextMarkupHelper& ) = delete;
+
+        const SwAccessiblePortionData& mrPortionData;
+
+        SwTextFrame const* m_pTextFrame;
+        const SwWrongList* mpTextMarkupList;
+};
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */