Adding upstream version 4:24.2.0.upstream/4%24.2.0

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

24 files changed, 10442 insertions, 0 deletions

diff --git a/svx/source/accessibility/AccessibleControlShape.cxx b/svx/source/accessibility/AccessibleControlShape.cxx
new file mode 100644
index 0000000000..3a6605fda6
--- /dev/null
+++ b/svx/source/accessibility/AccessibleControlShape.cxx
@@ -0,0 +1,851 @@
+/* -*- 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 <svx/AccessibleControlShape.hxx>
+#include <svx/AccessibleShapeInfo.hxx>
+#include <DescriptionGenerator.hxx>
+#include <com/sun/star/awt/XWindow.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/drawing/XControlShape.hpp>
+#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/reflection/ProxyFactory.hpp>
+#include <com/sun/star/util/XModeChangeBroadcaster.hpp>
+#include <com/sun/star/container/XContainer.hpp>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/property.hxx>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <svx/IAccessibleParent.hxx>
+#include <svx/svdouno.hxx>
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/SvxShapeTypes.hxx>
+#include <comphelper/accessiblewrapper.hxx>
+#include <svx/svdview.hxx>
+#include <svx/svdpagv.hxx>
+#include <svx/strings.hrc>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <sal/log.hxx>
+#include <tools/debug.hxx>
+#include <comphelper/diagnose_ex.hxx>
+
+using namespace ::accessibility;
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::awt;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::util;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::reflection;
+using namespace ::com::sun::star::drawing;
+using namespace ::com::sun::star::container;
+
+namespace
+{
+    constexpr OUString NAME_PROPERTY_NAME = u"Name"_ustr;
+    constexpr OUString DESC_PROPERTY_NAME = u"HelpText"_ustr;
+    constexpr OUString LABEL_PROPERTY_NAME = u"Label"_ustr;
+    constexpr OUString LABEL_CONTROL_PROPERTY_NAME = u"LabelControl"_ustr;
+
+    // return the property which should be used as AccessibleName
+    OUString lcl_getPreferredAccNameProperty( const Reference< XPropertySetInfo >& _rxPSI )
+    {
+        if ( _rxPSI.is() && _rxPSI->hasPropertyByName( LABEL_PROPERTY_NAME ) )
+            return LABEL_PROPERTY_NAME;
+        else
+            return NAME_PROPERTY_NAME;
+    }
+
+    // determines whether or not a state which belongs to the inner context needs to be forwarded to the "composed"
+    // context
+    bool    isComposedState( const sal_Int64 _nState )
+    {
+        return  (   ( AccessibleStateType::INVALID != _nState )
+                &&  ( AccessibleStateType::DEFUNC != _nState )
+                &&  ( AccessibleStateType::ICONIFIED != _nState )
+                &&  ( AccessibleStateType::RESIZABLE != _nState )
+                &&  ( AccessibleStateType::SELECTABLE != _nState )
+                &&  ( AccessibleStateType::SHOWING != _nState )
+                &&  ( AccessibleStateType::MANAGES_DESCENDANTS != _nState )
+                &&  ( AccessibleStateType::VISIBLE != _nState )
+                );
+    }
+
+    /// determines whether the given control is in alive mode
+    bool    isAliveMode( const Reference< XControl >& _rxControl )
+    {
+        OSL_PRECOND( _rxControl.is(), "AccessibleControlShape::isAliveMode: invalid control" );
+        return _rxControl.is() && !_rxControl->isDesignMode();
+    }
+}
+
+AccessibleControlShape::AccessibleControlShape (
+    const AccessibleShapeInfo& rShapeInfo,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo)
+    :      AccessibleShape (rShapeInfo, rShapeTreeInfo)
+    ,   m_bListeningForName( false )
+    ,   m_bListeningForDesc( false )
+    ,   m_bMultiplexingStates( false )
+    ,   m_bDisposeNativeContext( false )
+    ,   m_bWaitingForControl( false )
+{
+    m_pChildManager = new comphelper::OWrappedAccessibleChildrenManager( comphelper::getProcessComponentContext() );
+
+    osl_atomic_increment( &m_refCount );
+    {
+        m_pChildManager->setOwningAccessible( this );
+    }
+    osl_atomic_decrement( &m_refCount );
+}
+
+AccessibleControlShape::~AccessibleControlShape()
+{
+    m_pChildManager.clear();
+
+    if ( m_xControlContextProxy.is() )
+        m_xControlContextProxy->setDelegator( nullptr );
+    m_xControlContextProxy.clear();
+    m_xControlContextTypeAccess.clear();
+    m_xControlContextComponent.clear();
+        // this should remove the _only_ three "real" reference (means not delegated to
+        // ourself) to this proxy, and thus delete it
+}
+
+namespace {
+    Reference< XContainer > lcl_getControlContainer( const OutputDevice* _pWin, const SdrView* _pView )
+    {
+        Reference< XContainer > xReturn;
+        DBG_ASSERT( _pView, "lcl_getControlContainer: invalid view!" );
+        if ( _pView  && _pView->GetSdrPageView())
+        {
+            xReturn.set(_pView->GetSdrPageView()->GetControlContainer( *_pWin ), css::uno::UNO_QUERY);
+        }
+        return xReturn;
+    }
+}
+
+void AccessibleControlShape::Init()
+{
+    AccessibleShape::Init();
+
+    OSL_ENSURE( !m_xControlContextProxy.is(), "AccessibleControlShape::Init: already initialized!" );
+    try
+    {
+        // What we need to do here is merge the functionality of the AccessibleContext of our UNO control
+        // with our own AccessibleContext-related functionality.
+
+        // The problem is that we do not know the interfaces our "inner" context supports - this may be any
+        // XAccessibleXXX interface (or even any other) which makes sense for it.
+
+        // In theory, we could implement all possible interfaces ourself, and re-route all functionality to
+        // the inner context (except those we implement ourself, like XAccessibleComponent). But this is in no
+        // way future-proof - as soon as an inner context appears which implements an additional interface,
+        // we would need to adjust our implementation to support this new interface, too. Bad idea.
+
+        // The usual solution for such a problem is aggregation. Aggregation means using UNO's own mechanism
+        // for merging an inner with an outer component, and get a component which behaves as it is exactly one.
+        // This is what XAggregation is for. Unfortunately, aggregation requires _exact_ control over the ref count
+        // of the inner object, which we do not have at all.
+        // Bad, too.
+
+        // But there is a solution: com.sun.star.reflection.ProxyFactory. This service is able to create a proxy
+        // for any component, which supports _exactly_ the same interfaces as the component. In addition, it can
+        // be aggregated, as by definition the proxy's ref count is exactly 1 when returned from the factory.
+        // Sounds better. Though this yields the problem of slightly degraded performance, it's the only solution
+        // I'm aware of at the moment...
+
+        // get the control which belongs to our model (relative to our view)
+        const vcl::Window* pViewWindow = maShapeTreeInfo.GetWindow();
+        SdrUnoObj* pUnoObjectImpl = dynamic_cast<SdrUnoObj*>(SdrObject::getSdrObjectFromXShape(mxShape));
+        SdrView* pView = maShapeTreeInfo.GetSdrView();
+        OSL_ENSURE( pView && pViewWindow && pUnoObjectImpl, "AccessibleControlShape::Init: no view, or no view window, no SdrUnoObj!" );
+
+        if ( pView && pViewWindow && pUnoObjectImpl )
+        {
+            // get the context of the control - it will be our "inner" context
+            m_xUnoControl = pUnoObjectImpl->GetUnoControl( *pView, *pViewWindow->GetOutDev() );
+
+            if ( !m_xUnoControl.is() )
+            {
+                // the control has not yet been created. Though speaking strictly, it is a bug that
+                // our instance here is created without an existing control (because an AccessibleControlShape
+                // is a representation of a view object, and can only live if the view it should represent
+                // is complete, which implies a living control), it's by far the easiest and most riskless way
+                // to fix this here in this class.
+                // Okay, we will add as listener to the control container where we expect our control to appear.
+                OSL_ENSURE( !m_bWaitingForControl, "AccessibleControlShape::Init: already waiting for the control!" );
+
+                Reference< XContainer > xControlContainer = lcl_getControlContainer( pViewWindow->GetOutDev(), maShapeTreeInfo.GetSdrView() );
+                OSL_ENSURE( xControlContainer.is(), "AccessibleControlShape::Init: unable to find my ControlContainer!" );
+                if ( xControlContainer.is() )
+                {
+                    xControlContainer->addContainerListener( this );
+                    m_bWaitingForControl = true;
+                }
+            }
+            else
+            {
+                Reference< XModeChangeBroadcaster > xControlModes( m_xUnoControl, UNO_QUERY );
+                Reference< XAccessible > xControlAccessible( xControlModes, UNO_QUERY );
+                Reference< XAccessibleContext > xNativeControlContext;
+                if ( xControlAccessible.is() )
+                    xNativeControlContext = xControlAccessible->getAccessibleContext();
+                OSL_ENSURE( xNativeControlContext.is(), "AccessibleControlShape::Init: no AccessibleContext for the control!" );
+                m_aControlContext = WeakReference< XAccessibleContext >( xNativeControlContext );
+
+                // add as listener to the context - we want to multiplex some states
+                if ( isAliveMode( m_xUnoControl ) && xNativeControlContext.is() )
+                {   // (but only in alive mode)
+                    startStateMultiplexing( );
+                }
+
+                // now that we have all information about our control, do some adjustments
+                adjustAccessibleRole();
+                initializeComposedState();
+
+                // some initialization for our child manager, which is used in alive mode only
+                if ( isAliveMode( m_xUnoControl ) )
+                {
+                    sal_Int64 nStates( getAccessibleStateSet( ) );
+                    m_pChildManager->setTransientChildren( nStates & AccessibleStateType::MANAGES_DESCENDANTS );
+                }
+
+                // finally, aggregate a proxy for the control context
+                // first a factory for the proxy
+                Reference< XProxyFactory > xFactory = ProxyFactory::create( comphelper::getProcessComponentContext() );
+                // then the proxy itself
+                if ( xNativeControlContext.is() )
+                {
+                    m_xControlContextProxy = xFactory->createProxy( xNativeControlContext );
+                    m_xControlContextTypeAccess.set( xNativeControlContext, UNO_QUERY_THROW );
+                    m_xControlContextComponent.set( xNativeControlContext, UNO_QUERY_THROW );
+
+                    // aggregate the proxy
+                    osl_atomic_increment( &m_refCount );
+                    if ( m_xControlContextProxy.is() )
+                    {
+                        // At this point in time, the proxy has a ref count of exactly one - in m_xControlContextProxy.
+                        // Remember to _not_ reset this member unless the delegator of the proxy has been reset, too!
+                        m_xControlContextProxy->setDelegator( *this );
+                    }
+                    osl_atomic_decrement( &m_refCount );
+
+                    m_bDisposeNativeContext = true;
+
+                    // Finally, we need to add ourself as mode listener to the control. In case the mode switches,
+                    // we need to dispose ourself.
+                    xControlModes->addModeChangeListener( this );
+                }
+            }
+        }
+    }
+    catch( const Exception& )
+    {
+        OSL_FAIL( "AccessibleControlShape::Init: could not \"aggregate\" the controls XAccessibleContext!" );
+    }
+}
+
+void SAL_CALL AccessibleControlShape::grabFocus()
+{
+    if ( !m_xUnoControl.is() || !isAliveMode( m_xUnoControl ) )
+    {
+        // in design mode, we simply forward the request to the base class
+        AccessibleShape::grabFocus();
+    }
+    else
+    {
+        Reference< XWindow > xWindow( m_xUnoControl, UNO_QUERY );
+        OSL_ENSURE( xWindow.is(), "AccessibleControlShape::grabFocus: invalid control!" );
+        if ( xWindow.is() )
+            xWindow->setFocus();
+    }
+}
+
+OUString SAL_CALL AccessibleControlShape::getImplementationName()
+{
+    return "com.sun.star.comp.accessibility.AccessibleControlShape";
+}
+
+OUString AccessibleControlShape::CreateAccessibleBaseName()
+{
+    OUString sName;
+
+    ShapeTypeId nShapeType = ShapeTypeHandler::Instance().GetTypeId (mxShape);
+    switch (nShapeType)
+    {
+        case DRAWING_CONTROL:
+            sName = "ControlShape";
+            break;
+        default:
+            sName = "UnknownAccessibleControlShape";
+            if (mxShape.is())
+                sName += ": " + mxShape->getShapeType();
+    }
+
+    return sName;
+}
+
+OUString
+    AccessibleControlShape::CreateAccessibleDescription()
+{
+    DescriptionGenerator aDG (mxShape);
+    ShapeTypeId nShapeType = ShapeTypeHandler::Instance().GetTypeId (mxShape);
+    switch (nShapeType)
+    {
+        case DRAWING_CONTROL:
+        {
+            // check if we can obtain the "Desc" property from the model
+            OUString sDesc( getControlModelStringProperty( DESC_PROPERTY_NAME ) );
+            if ( sDesc.isEmpty() )
+            {   // no -> use the default
+                aDG.Initialize (STR_ObjNameSingulUno);
+                aDG.AddProperty ("ControlBackground", DescriptionGenerator::PropertyType::Color);
+                aDG.AddProperty ( "ControlBorder", DescriptionGenerator::PropertyType::Integer);
+            }
+            // ensure that we are listening to the Name property
+            m_bListeningForDesc = ensureListeningState( m_bListeningForDesc, true, DESC_PROPERTY_NAME );
+        }
+        break;
+
+        default:
+            aDG.Initialize (u"Unknown accessible control shape");
+            if (mxShape.is())
+            {
+                aDG.AppendString (u"service name=");
+                aDG.AppendString (mxShape->getShapeType());
+            }
+    }
+
+    return aDG();
+}
+
+IMPLEMENT_FORWARD_REFCOUNT( AccessibleControlShape, AccessibleShape )
+IMPLEMENT_GET_IMPLEMENTATION_ID( AccessibleControlShape )
+
+void SAL_CALL AccessibleControlShape::propertyChange( const PropertyChangeEvent& _rEvent )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+
+    // check if it is the name or the description
+    if  (   _rEvent.PropertyName == NAME_PROPERTY_NAME
+            ||  _rEvent.PropertyName == LABEL_PROPERTY_NAME )
+    {
+        SetAccessibleName(
+            CreateAccessibleName(),
+            AccessibleContextBase::AutomaticallyCreated);
+    }
+    else if ( _rEvent.PropertyName == DESC_PROPERTY_NAME )
+    {
+        SetAccessibleDescription(
+            CreateAccessibleDescription(),
+            AccessibleContextBase::AutomaticallyCreated);
+    }
+#if OSL_DEBUG_LEVEL > 0
+    else
+    {
+        OSL_FAIL( "AccessibleControlShape::propertyChange: where did this come from?" );
+    }
+#endif
+}
+
+Any SAL_CALL AccessibleControlShape::queryInterface( const Type& _rType )
+{
+    Any aReturn = AccessibleShape::queryInterface( _rType );
+    if ( !aReturn.hasValue() )
+    {
+        aReturn = AccessibleControlShape_Base::queryInterface( _rType );
+        if ( !aReturn.hasValue() && m_xControlContextProxy.is() )
+            aReturn = m_xControlContextProxy->queryAggregation( _rType );
+    }
+    return aReturn;
+}
+
+Sequence< Type > SAL_CALL AccessibleControlShape::getTypes()
+{
+    Sequence< Type > aShapeTypes = AccessibleShape::getTypes();
+    Sequence< Type > aOwnTypes = AccessibleControlShape_Base::getTypes();
+
+    Sequence< Type > aAggregateTypes;
+    if ( m_xControlContextTypeAccess.is() )
+        aAggregateTypes = m_xControlContextTypeAccess->getTypes();
+
+    // remove duplicates
+    return comphelper::combineSequences(comphelper::concatSequences( aShapeTypes, aOwnTypes), aAggregateTypes );
+}
+
+void SAL_CALL AccessibleControlShape::notifyEvent( const AccessibleEventObject& _rEvent )
+{
+    if ( AccessibleEventId::STATE_CHANGED == _rEvent.EventId )
+    {
+        // multiplex this change
+        sal_Int64 nLostState( 0 ), nGainedState( 0 );
+        _rEvent.OldValue >>= nLostState;
+        _rEvent.NewValue >>= nGainedState;
+
+        // don't multiplex states which the inner context is not responsible for
+        if  ( isComposedState( nLostState ) )
+            AccessibleShape::ResetState( nLostState );
+
+        if  ( isComposedState( nGainedState ) )
+            AccessibleShape::SetState( nGainedState );
+    }
+    else
+    {
+        AccessibleEventObject aTranslatedEvent( _rEvent );
+
+        {
+            ::osl::MutexGuard aGuard( m_aMutex );
+
+            // let the child manager translate the event
+            aTranslatedEvent.Source = *this;
+            m_pChildManager->translateAccessibleEvent( _rEvent, aTranslatedEvent );
+
+            // see if any of these notifications affect our child manager
+            m_pChildManager->handleChildNotification( _rEvent );
+        }
+
+        FireEvent( aTranslatedEvent );
+    }
+}
+
+void SAL_CALL AccessibleControlShape::modeChanged(const ModeChangeEvent& rSource)
+{
+    // did it come from our inner context (the real one, not it's proxy!)?
+    SAL_INFO("sw.uno", "AccessibleControlShape::modeChanged");
+    Reference<XControl> xSource(rSource.Source, UNO_QUERY); // for faster compare
+    if(xSource.get() != m_xUnoControl.get())
+    {
+        SAL_WARN("sw.uno", "AccessibleControlShape::modeChanged: where did this come from?");
+        return;
+    }
+    SolarMutexGuard g;
+    // If our "pseudo-aggregated" inner context does not live anymore,
+    // we don't want to live, too.  This is accomplished by asking our
+    // parent to replace this object with a new one.  Disposing this
+    // object and sending notifications about the replacement are in
+    // the responsibility of our parent.
+    const bool bReplaced = mpParent->ReplaceChild(this, mxShape, 0, maShapeTreeInfo);
+    SAL_WARN_IF(!bReplaced, "sw.uno", "AccessibleControlShape::modeChanged: replacing ourselves away did fail");
+}
+
+void SAL_CALL AccessibleControlShape::disposing (const EventObject& _rSource)
+{
+    AccessibleShape::disposing( _rSource );
+}
+
+bool AccessibleControlShape::ensureListeningState(
+        const bool _bCurrentlyListening, const bool _bNeedNewListening,
+        const OUString& _rPropertyName )
+{
+    if ( ( _bCurrentlyListening == _bNeedNewListening ) || !ensureControlModelAccess() )
+        //  nothing to do
+        return _bCurrentlyListening;
+
+    try
+    {
+        if ( !m_xModelPropsMeta.is() || m_xModelPropsMeta->hasPropertyByName( _rPropertyName ) )
+        {
+            // add or revoke as listener
+            if ( _bNeedNewListening )
+                m_xControlModel->addPropertyChangeListener( _rPropertyName, static_cast< XPropertyChangeListener* >( this ) );
+            else
+                m_xControlModel->removePropertyChangeListener( _rPropertyName, static_cast< XPropertyChangeListener* >( this ) );
+        }
+        else
+            OSL_FAIL( "AccessibleControlShape::ensureListeningState: this property does not exist at this model!" );
+    }
+    catch( const Exception& )
+    {
+        OSL_FAIL( "AccessibleControlShape::ensureListeningState: could not change the listening state!" );
+    }
+
+    return _bNeedNewListening;
+}
+
+sal_Int64 SAL_CALL AccessibleControlShape::getAccessibleChildCount( )
+{
+    if ( !m_xUnoControl.is() )
+        return 0;
+    else if ( !isAliveMode( m_xUnoControl ) )
+        // no special action required when in design mode
+        return AccessibleShape::getAccessibleChildCount( );
+    else
+    {
+        // in alive mode, we have the full control over our children - they are determined by the children
+        // of the context of our UNO control
+        Reference< XAccessibleContext > xControlContext( m_aControlContext );
+        OSL_ENSURE( xControlContext.is(), "AccessibleControlShape::getAccessibleChildCount: control context already dead! How this!" );
+        return xControlContext.is() ? xControlContext->getAccessibleChildCount() : 0;
+    }
+}
+
+Reference< XAccessible > SAL_CALL AccessibleControlShape::getAccessibleChild( sal_Int64 i )
+{
+    Reference< XAccessible > xChild;
+    if ( !m_xUnoControl.is() )
+    {
+        throw IndexOutOfBoundsException();
+    }
+    if ( !isAliveMode( m_xUnoControl ) )
+    {
+        // no special action required when in design mode - let the base class handle this
+        xChild = AccessibleShape::getAccessibleChild( i );
+    }
+    else
+    {
+        // in alive mode, we have the full control over our children - they are determined by the children
+        // of the context of our UNO control
+
+        Reference< XAccessibleContext > xControlContext( m_aControlContext );
+        OSL_ENSURE( xControlContext.is(), "AccessibleControlShape::getAccessibleChild: control context already dead! How this!" );
+        if ( xControlContext.is() )
+        {
+            Reference< XAccessible > xInnerChild( xControlContext->getAccessibleChild( i ) );
+            OSL_ENSURE( xInnerChild.is(), "AccessibleControlShape::getAccessibleChild: control context returned nonsense!" );
+            if ( xInnerChild.is() )
+            {
+                // we need to wrap this inner child into an own implementation
+                xChild = m_pChildManager->getAccessibleWrapperFor( xInnerChild );
+            }
+        }
+    }
+
+#if OSL_DEBUG_LEVEL > 0
+    sal_Int64 nChildIndex = -1;
+    Reference< XAccessibleContext > xContext;
+    if ( xChild.is() )
+        xContext = xChild->getAccessibleContext( );
+    if ( xContext.is() )
+        nChildIndex = xContext->getAccessibleIndexInParent( );
+    SAL_WARN_IF( nChildIndex != i, "svx", "AccessibleControlShape::getAccessibleChild: index mismatch,"
+            " nChildIndex=" << nChildIndex << " vs i=" << i );
+#endif
+    return xChild;
+}
+
+Reference< XAccessibleRelationSet > SAL_CALL AccessibleControlShape::getAccessibleRelationSet(  )
+{
+    rtl::Reference<utl::AccessibleRelationSetHelper> pRelationSetHelper = new utl::AccessibleRelationSetHelper;
+    ensureControlModelAccess();
+    AccessibleControlShape* pCtlAccShape = GetLabeledByControlShape();
+    if(pCtlAccShape)
+    {
+        Reference < XAccessible > xAcc (pCtlAccShape->getAccessibleContext(), UNO_QUERY);
+
+        css::uno::Sequence< css::uno::Reference< css::uno::XInterface > > aSequence { xAcc };
+        if( getAccessibleRole() == AccessibleRole::RADIO_BUTTON )
+        {
+            pRelationSetHelper->AddRelation( AccessibleRelation( AccessibleRelationType::MEMBER_OF, aSequence ) );
+        }
+        else
+        {
+            pRelationSetHelper->AddRelation( AccessibleRelation( AccessibleRelationType::LABELED_BY, aSequence ) );
+        }
+    }
+    return pRelationSetHelper;
+}
+
+OUString AccessibleControlShape::CreateAccessibleName()
+{
+    ensureControlModelAccess();
+
+    OUString sName;
+    sal_Int16 aAccessibleRole = getAccessibleRole();
+    if ( aAccessibleRole != AccessibleRole::SHAPE
+        && aAccessibleRole != AccessibleRole::RADIO_BUTTON  )
+    {
+        AccessibleControlShape* pCtlAccShape = GetLabeledByControlShape();
+        if(pCtlAccShape)
+        {
+            sName = pCtlAccShape->CreateAccessibleName();
+        }
+    }
+
+    if (sName.isEmpty())
+    {
+        // check if we can obtain the "Name" resp. "Label" property from the model
+        const OUString& rAccNameProperty = lcl_getPreferredAccNameProperty( m_xModelPropsMeta );
+        sName = getControlModelStringProperty( rAccNameProperty );
+        if ( !sName.getLength() )
+        {   // no -> use the default
+            sName = AccessibleShape::CreateAccessibleName();
+        }
+    }
+
+    // now that somebody first asked us for our name, ensure that we are listening to name changes on the model
+    m_bListeningForName = ensureListeningState( m_bListeningForName, true, lcl_getPreferredAccNameProperty( m_xModelPropsMeta ) );
+
+    return sName;
+}
+
+void SAL_CALL AccessibleControlShape::disposing()
+{
+    // ensure we're not listening
+    m_bListeningForName = ensureListeningState( m_bListeningForName, false, lcl_getPreferredAccNameProperty( m_xModelPropsMeta ) );
+    m_bListeningForDesc = ensureListeningState( m_bListeningForDesc, false, DESC_PROPERTY_NAME );
+
+    if ( m_bMultiplexingStates )
+        stopStateMultiplexing( );
+
+    // dispose the child cache/map
+    m_pChildManager->dispose();
+
+    // release the model
+    m_xControlModel.clear();
+    m_xModelPropsMeta.clear();
+    m_aControlContext = WeakReference< XAccessibleContext >();
+
+    // stop listening at the control container (should never be necessary here, but who knows...)
+    if ( m_bWaitingForControl )
+    {
+        OSL_FAIL( "AccessibleControlShape::disposing: this should never happen!" );
+        if (auto pWindow = maShapeTreeInfo.GetWindow())
+        {
+            Reference< XContainer > xContainer = lcl_getControlContainer( pWindow->GetOutDev(), maShapeTreeInfo.GetSdrView() );
+            if ( xContainer.is() )
+            {
+                m_bWaitingForControl = false;
+                xContainer->removeContainerListener( this );
+            }
+        }
+    }
+
+    // forward the disposal to our inner context
+    if ( m_bDisposeNativeContext )
+    {
+        // don't listen for mode changes anymore
+        Reference< XModeChangeBroadcaster > xControlModes( m_xUnoControl, UNO_QUERY );
+        OSL_ENSURE( xControlModes.is(), "AccessibleControlShape::disposing: don't have a mode broadcaster anymore!" );
+        if ( xControlModes.is() )
+            xControlModes->removeModeChangeListener( this );
+
+        if ( m_xControlContextComponent.is() )
+            m_xControlContextComponent->dispose();
+        // do _not_ clear m_xControlContextProxy! This has to be done in the dtor for correct ref-count handling
+
+        // no need to dispose the proxy/inner context anymore
+        m_bDisposeNativeContext = false;
+    }
+
+    m_xUnoControl.clear();
+
+    // let the base do its stuff
+    AccessibleShape::disposing();
+}
+
+bool AccessibleControlShape::ensureControlModelAccess()
+{
+    if ( m_xControlModel.is() )
+        return true;
+
+    try
+    {
+        Reference< XControlShape > xShape( mxShape, UNO_QUERY );
+        if ( xShape.is() )
+            m_xControlModel.set(xShape->getControl(), css::uno::UNO_QUERY);
+
+        if ( m_xControlModel.is() )
+            m_xModelPropsMeta = m_xControlModel->getPropertySetInfo();
+    }
+    catch( const Exception& )
+    {
+        TOOLS_WARN_EXCEPTION( "svx", "AccessibleControlShape::ensureControlModelAccess" );
+    }
+
+    return m_xControlModel.is();
+}
+
+void AccessibleControlShape::startStateMultiplexing()
+{
+    OSL_PRECOND( !m_bMultiplexingStates, "AccessibleControlShape::startStateMultiplexing: already multiplexing!" );
+
+#if OSL_DEBUG_LEVEL > 0
+    // we should have a control, and it should be in alive mode
+    OSL_PRECOND( isAliveMode( m_xUnoControl ),
+        "AccessibleControlShape::startStateMultiplexing: should be done in alive mode only!" );
+#endif
+    // we should have the native context of the control
+    Reference< XAccessibleEventBroadcaster > xBroadcaster( m_aControlContext.get(), UNO_QUERY );
+    OSL_ENSURE( xBroadcaster.is(), "AccessibleControlShape::startStateMultiplexing: no AccessibleEventBroadcaster on the native context!" );
+
+    if ( xBroadcaster.is() )
+    {
+        xBroadcaster->addAccessibleEventListener( this );
+        m_bMultiplexingStates = true;
+    }
+}
+
+void AccessibleControlShape::stopStateMultiplexing()
+{
+    OSL_PRECOND( m_bMultiplexingStates, "AccessibleControlShape::stopStateMultiplexing: not multiplexing!" );
+
+    // we should have the native context of the control
+    Reference< XAccessibleEventBroadcaster > xBroadcaster( m_aControlContext.get(), UNO_QUERY );
+    OSL_ENSURE( xBroadcaster.is(), "AccessibleControlShape::stopStateMultiplexing: no AccessibleEventBroadcaster on the native context!" );
+
+    if ( xBroadcaster.is() )
+    {
+        xBroadcaster->removeAccessibleEventListener( this );
+        m_bMultiplexingStates = false;
+    }
+}
+
+OUString AccessibleControlShape::getControlModelStringProperty( const OUString& _rPropertyName ) const
+{
+    OUString sReturn;
+    try
+    {
+        if ( const_cast< AccessibleControlShape* >( this )->ensureControlModelAccess() )
+        {
+            if ( !m_xModelPropsMeta.is() || m_xModelPropsMeta->hasPropertyByName( _rPropertyName ) )
+                // ask only if a) the control does not have a PropertySetInfo object or b) it has, and the
+                // property in question is available
+                m_xControlModel->getPropertyValue( _rPropertyName ) >>= sReturn;
+        }
+    }
+    catch( const Exception& )
+    {
+        TOOLS_WARN_EXCEPTION( "svx", "OAccessibleControlContext::getModelStringProperty" );
+    }
+    return sReturn;
+}
+
+void AccessibleControlShape::adjustAccessibleRole( )
+{
+    // if we're in design mode, we are a simple SHAPE, in alive mode, we use the role of our inner context
+    if ( !isAliveMode( m_xUnoControl ) )
+        return;
+
+    // we're in alive mode -> determine the role of the inner context
+    Reference< XAccessibleContext > xNativeContext( m_aControlContext );
+    OSL_PRECOND( xNativeContext.is(), "AccessibleControlShape::adjustAccessibleRole: no inner context!" );
+    if ( xNativeContext.is() )
+        SetAccessibleRole( xNativeContext->getAccessibleRole( ) );
+}
+
+#ifdef DBG_UTIL
+
+bool AccessibleControlShape::SetState( sal_Int64 _nState )
+{
+    OSL_ENSURE( !isAliveMode( m_xUnoControl ) || !isComposedState( _nState ),
+        "AccessibleControlShape::SetState: a state which should be determined by the control context is set from outside!" );
+    return AccessibleShape::SetState( _nState );
+}
+#endif // DBG_UTIL
+
+void AccessibleControlShape::initializeComposedState()
+{
+    if ( !isAliveMode( m_xUnoControl ) )
+        // no action necessary for design mode
+        return;
+
+    // we need to reset some states of the composed set, because they either do not apply
+    // for controls in alive mode, or are in the responsibility of the UNO-control, anyway
+    mnStateSet &= ~AccessibleStateType::ENABLED;       // this is controlled by the UNO-control
+    mnStateSet &= ~AccessibleStateType::SENSITIVE;     // this is controlled by the UNO-control
+    mnStateSet &= ~AccessibleStateType::FOCUSABLE;     // this is controlled by the UNO-control
+    mnStateSet &= ~AccessibleStateType::SELECTABLE;    // this does not hold for an alive UNO-control
+
+    // get my inner context
+    Reference< XAccessibleContext > xInnerContext( m_aControlContext );
+    OSL_PRECOND( xInnerContext.is(), "AccessibleControlShape::initializeComposedState: no inner context!" );
+    if ( !xInnerContext.is() )
+        return;
+
+    // get all states of the inner context
+    sal_Int64 nInnerStates( xInnerContext->getAccessibleStateSet() );
+
+    // look which one are to be propagated to the composed context
+    for ( int i = 0; i < 63; ++i )
+    {
+        sal_Int64 nState = sal_Int64(1) << i;
+        if ( (nInnerStates & nState) && isComposedState( nState ) )
+        {
+            mnStateSet |= nState;
+        }
+    }
+}
+
+void SAL_CALL AccessibleControlShape::elementInserted( const css::container::ContainerEvent& _rEvent )
+{
+    Reference< XContainer > xContainer( _rEvent.Source, UNO_QUERY );
+    Reference< XControl > xControl( _rEvent.Element, UNO_QUERY );
+
+    OSL_ENSURE( xContainer.is() && xControl.is(),
+        "AccessibleControlShape::elementInserted: invalid event description!" );
+
+    if ( !xControl.is() )
+        return;
+
+    ensureControlModelAccess();
+
+    Reference< XInterface > xNewNormalized( xControl->getModel(), UNO_QUERY );
+    Reference< XInterface > xMyModelNormalized( m_xControlModel, UNO_QUERY );
+    if ( !(xNewNormalized && xMyModelNormalized) )
+        return;
+
+    // now finally the control for the model we're responsible for has been inserted into the container
+    Reference< XInterface > xKeepAlive( *this );
+
+    // first, we're not interested in any more container events
+    if ( xContainer.is() )
+    {
+        xContainer->removeContainerListener( this );
+        m_bWaitingForControl = false;
+    }
+
+    // second, we need to replace ourself with a new version, which now can be based on the
+    // control
+    OSL_VERIFY( mpParent->ReplaceChild ( this, mxShape, 0, maShapeTreeInfo ) );
+}
+
+void SAL_CALL AccessibleControlShape::elementRemoved( const css::container::ContainerEvent& )
+{
+    // not interested in
+}
+
+void SAL_CALL AccessibleControlShape::elementReplaced( const css::container::ContainerEvent& )
+{
+    // not interested in
+}
+
+AccessibleControlShape* AccessibleControlShape::GetLabeledByControlShape( )
+{
+    if(m_xControlModel.is())
+    {
+        Any sCtlLabelBy;
+        // get the "label by" property value of the control
+        if (::comphelper::hasProperty(LABEL_CONTROL_PROPERTY_NAME, m_xControlModel))
+        {
+            sCtlLabelBy = m_xControlModel->getPropertyValue(LABEL_CONTROL_PROPERTY_NAME);
+            if( sCtlLabelBy.hasValue() )
+            {
+                Reference< XPropertySet >  xAsSet (sCtlLabelBy, UNO_QUERY);
+                AccessibleControlShape* pCtlAccShape = mpParent->GetAccControlShapeFromModel(xAsSet.get());
+                return pCtlAccShape;
+            }
+        }
+    }
+    return nullptr;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleEmptyEditSource.cxx b/svx/source/accessibility/AccessibleEmptyEditSource.cxx
new file mode 100644
index 0000000000..7ff9ec6610
--- /dev/null
+++ b/svx/source/accessibility/AccessibleEmptyEditSource.cxx
@@ -0,0 +1,332 @@
+/* -*- 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 .
+ */
+
+
+// Global header
+
+
+#include <memory>
+#include <svl/itemset.hxx>
+#include <editeng/editdata.hxx>
+#include <editeng/outliner.hxx>
+#include <svx/svdmodel.hxx>
+#include <svx/svdobj.hxx>
+#include <svx/svdpool.hxx>
+
+
+// Project-local header
+
+
+#include "AccessibleEmptyEditSource.hxx"
+#include <svx/unoshtxt.hxx>
+
+namespace accessibility
+{
+    namespace {
+
+    /** This class simply wraps a SvxTextEditSource, forwarding all
+        methods except the GetBroadcaster() call
+     */
+    class AccessibleProxyEditSource_Impl : public SvxEditSource
+    {
+    public:
+        /** Construct AccessibleEmptyEditSource_Impl
+
+            @param rBrdCast
+
+            Proxy broadcaster to allow seamless flipping of edit source implementations. ProxyEditSource and EmptyEditSource
+         */
+        AccessibleProxyEditSource_Impl( SdrObject&      rObj,
+                                        SdrView&        rView,
+                                        const OutputDevice&   rViewWindow );
+
+        // from the SvxEditSource interface
+        SvxTextForwarder*       GetTextForwarder() override;
+        SvxViewForwarder*       GetViewForwarder() override;
+        SvxEditViewForwarder*   GetEditViewForwarder( bool bCreate = false ) override;
+
+        std::unique_ptr<SvxEditSource> Clone() const override;
+
+        void                    UpdateData() override;
+
+        SfxBroadcaster&         GetBroadcaster() const override;
+
+    private:
+        SvxTextEditSource       maEditSource;
+
+    };
+
+    /** Dummy class, faking exactly one empty paragraph for EditEngine accessibility
+     */
+    class AccessibleEmptyEditSource_Impl : public SvxEditSource, public SvxViewForwarder, public SvxTextForwarder, public SfxBroadcaster
+    {
+    public:
+
+        AccessibleEmptyEditSource_Impl() {}
+
+        // SvxEditSource
+        SvxTextForwarder*       GetTextForwarder() override { return this; }
+        SvxViewForwarder*       GetViewForwarder() override { return this; }
+        std::unique_ptr<SvxEditSource> Clone() const override { return nullptr; }
+        void                    UpdateData() override {}
+        SfxBroadcaster&         GetBroadcaster() const override { return *const_cast<AccessibleEmptyEditSource_Impl*>(this); }
+
+        // SvxTextForwarder
+        sal_Int32          GetParagraphCount() const override { return 1; }
+        sal_Int32          GetTextLen( sal_Int32 /*nParagraph*/ ) const override { return 0; }
+        OUString           GetText( const ESelection& /*rSel*/ ) const override { return OUString(); }
+        SfxItemSet         GetAttribs( const ESelection& /*rSel*/, EditEngineAttribs /*nOnlyHardAttrib*/ = EditEngineAttribs::All ) const override
+        {
+            // AW: Very dangerous: The former implementation used a SfxItemPool created on the
+            // fly which of course was deleted again ASAP. Thus, the returned SfxItemSet was using
+            // a deleted Pool by design.
+            return SfxItemSet(SdrObject::GetGlobalDrawObjectItemPool());
+        }
+        SfxItemSet      GetParaAttribs( sal_Int32 /*nPara*/ ) const override { return GetAttribs(ESelection()); }
+        void            SetParaAttribs( sal_Int32 /*nPara*/, const SfxItemSet& /*rSet*/ ) override {}
+        void            RemoveAttribs( const ESelection& /*rSelection*/ ) override {}
+        void            GetPortions( sal_Int32 /*nPara*/, std::vector<sal_Int32>& /*rList*/ ) const override {}
+
+        OUString    GetStyleSheet(sal_Int32 /*nPara*/) const override { return OUString(); }
+        void        SetStyleSheet(sal_Int32 /*nPara*/, const OUString& /*rStyleName*/) override {}
+
+        SfxItemState    GetItemState( const ESelection& /*rSel*/, sal_uInt16 /*nWhich*/ ) const override { return SfxItemState::UNKNOWN; }
+        SfxItemState    GetItemState( sal_Int32 /*nPara*/, sal_uInt16 /*nWhich*/ ) const override { return SfxItemState::UNKNOWN; }
+
+        SfxItemPool*    GetPool() const override { return nullptr; }
+
+        void            QuickInsertText( const OUString& /*rText*/, const ESelection& /*rSel*/ ) override {}
+        void            QuickInsertField( const SvxFieldItem& /*rFld*/, const ESelection& /*rSel*/ ) override {}
+        void            QuickSetAttribs( const SfxItemSet& /*rSet*/, const ESelection& /*rSel*/ ) override {}
+        void            QuickInsertLineBreak( const ESelection& /*rSel*/ ) override {}
+
+        const SfxItemSet * GetEmptyItemSetPtr() override { return nullptr; }
+
+        void        AppendParagraph() override {}
+        sal_Int32  AppendTextPortion( sal_Int32 /*nPara*/, const OUString & /*rText*/, const SfxItemSet & /*rSet*/ ) override { return 0; }
+
+        //XTextCopy
+        void        CopyText(const SvxTextForwarder& ) override {}
+
+        OUString    CalcFieldValue( const SvxFieldItem& /*rField*/, sal_Int32 /*nPara*/, sal_Int32 /*nPos*/, std::optional<Color>& /*rpTxtColor*/, std::optional<Color>& /*rpFldColor*/, std::optional<FontLineStyle>& /*rpFldLineStyle*/ ) override
+        {
+            return  OUString();
+        }
+        void            FieldClicked( const SvxFieldItem& ) override {}
+
+        bool            IsValid() const override { return true; }
+
+        LanguageType    GetLanguage( sal_Int32, sal_Int32 ) const override { return LANGUAGE_DONTKNOW; }
+        sal_Int32       GetFieldCount( sal_Int32 ) const override { return 0; }
+        EFieldInfo      GetFieldInfo( sal_Int32, sal_uInt16 ) const override { return EFieldInfo(); }
+        EBulletInfo     GetBulletInfo( sal_Int32 ) const override { return EBulletInfo(); }
+        tools::Rectangle       GetCharBounds( sal_Int32, sal_Int32 ) const override { return tools::Rectangle(); }
+        tools::Rectangle       GetParaBounds( sal_Int32 ) const override { return tools::Rectangle(); }
+        MapMode         GetMapMode() const override { return MapMode(); }
+        OutputDevice*   GetRefDevice() const override { return nullptr; }
+        bool            GetIndexAtPoint( const Point&, sal_Int32&, sal_Int32& ) const override { return false; }
+        bool            GetWordIndices( sal_Int32, sal_Int32, sal_Int32&, sal_Int32& ) const override { return false; }
+        bool            GetAttributeRun( sal_Int32&, sal_Int32&, sal_Int32, sal_Int32, bool ) const override { return false; }
+        sal_Int32       GetLineCount( sal_Int32 nPara ) const override { return nPara == 0 ? 1 : 0; }
+        sal_Int32       GetLineLen( sal_Int32, sal_Int32 ) const override { return 0; }
+        void            GetLineBoundaries( /*out*/sal_Int32 & rStart, /*out*/sal_Int32 & rEnd, sal_Int32 /*nParagraph*/, sal_Int32 /*nLine*/ ) const override  { rStart = rEnd = 0; }
+        sal_Int32       GetLineNumberAtIndex( sal_Int32 /*nPara*/, sal_Int32 /*nIndex*/ ) const override   { return 0; }
+
+        // the following two methods would, strictly speaking, require
+        // a switch to a real EditSource, too. Fortunately, the
+        // AccessibleEditableTextPara implementation currently always
+        // calls GetEditViewForwarder(true) before doing
+        // changes. Thus, we rely on this behaviour here (problem
+        // when that changes: via accessibility API, it would no
+        // longer be possible to enter text in previously empty
+        // shapes).
+        bool            Delete( const ESelection& ) override { return false; }
+        bool            InsertText( const OUString&, const ESelection& ) override { return false; }
+        bool            QuickFormatDoc( bool ) override { return true; }
+        sal_Int16       GetDepth( sal_Int32 ) const override { return -1; }
+        bool            SetDepth( sal_Int32, sal_Int16 ) override { return true; }
+
+        Point           LogicToPixel( const Point& rPoint, const MapMode& /*rMapMode*/ ) const override { return rPoint; }
+        Point           PixelToLogic( const Point& rPoint, const MapMode& /*rMapMode*/ ) const override { return rPoint; }
+
+    };
+
+    }
+
+    // Implementing AccessibleProxyEditSource_Impl
+
+
+    AccessibleProxyEditSource_Impl::AccessibleProxyEditSource_Impl( SdrObject&      rObj,
+                                                                    SdrView&        rView,
+                                                                    const OutputDevice&   rViewWindow ) :
+        maEditSource( rObj, nullptr, rView, rViewWindow )
+    {
+    }
+
+    SvxTextForwarder* AccessibleProxyEditSource_Impl::GetTextForwarder()
+    {
+        return maEditSource.GetTextForwarder();
+    }
+
+    SvxViewForwarder* AccessibleProxyEditSource_Impl::GetViewForwarder()
+    {
+        return maEditSource.GetViewForwarder();
+    }
+
+    SvxEditViewForwarder* AccessibleProxyEditSource_Impl::GetEditViewForwarder( bool bCreate )
+    {
+        return maEditSource.GetEditViewForwarder( bCreate );
+    }
+
+    std::unique_ptr<SvxEditSource> AccessibleProxyEditSource_Impl::Clone() const
+    {
+        return maEditSource.Clone();
+    }
+
+    void AccessibleProxyEditSource_Impl::UpdateData()
+    {
+        maEditSource.UpdateData();
+    }
+
+    SfxBroadcaster& AccessibleProxyEditSource_Impl::GetBroadcaster() const
+    {
+        return maEditSource.GetBroadcaster();
+    }
+
+
+    // Implementing AccessibleEmptyEditSource
+
+
+    AccessibleEmptyEditSource::AccessibleEmptyEditSource( SdrObject&    rObj,
+                                                          SdrView&      rView,
+                                                          const OutputDevice& rViewWindow ) :
+        mpEditSource( new AccessibleEmptyEditSource_Impl() ),
+        mrObj(rObj),
+        mrView(rView),
+        mrViewWindow(rViewWindow),
+        mbEditSourceEmpty( true )
+    {
+        StartListening( mrObj.getSdrModelFromSdrObject() );
+    }
+
+    AccessibleEmptyEditSource::~AccessibleEmptyEditSource()
+    {
+        if( !mbEditSourceEmpty )
+        {
+            // deregister as listener
+            if (mpEditSource)
+                EndListening( mpEditSource->GetBroadcaster() );
+        }
+        else
+        {
+            EndListening( mrObj.getSdrModelFromSdrObject() );
+        }
+    }
+
+    SvxTextForwarder* AccessibleEmptyEditSource::GetTextForwarder()
+    {
+        if (!mpEditSource)
+            return nullptr;
+
+        return mpEditSource->GetTextForwarder();
+    }
+
+    SvxViewForwarder* AccessibleEmptyEditSource::GetViewForwarder()
+    {
+        if (!mpEditSource)
+            return nullptr;
+
+        return mpEditSource->GetViewForwarder();
+    }
+
+    void AccessibleEmptyEditSource::Switch2ProxyEditSource()
+    {
+        // deregister EmptyEditSource model listener
+        EndListening( mrObj.getSdrModelFromSdrObject() );
+
+        ::std::unique_ptr< SvxEditSource > pProxySource( new AccessibleProxyEditSource_Impl(mrObj, mrView, mrViewWindow) );
+        mpEditSource.swap(pProxySource);
+
+        // register as listener
+        StartListening( mpEditSource->GetBroadcaster() );
+
+        // we've irrevocably a full EditSource now.
+        mbEditSourceEmpty = false;
+    }
+
+    SvxEditViewForwarder* AccessibleEmptyEditSource::GetEditViewForwarder( bool bCreate )
+    {
+        if (!mpEditSource)
+            return nullptr;
+
+        // switch edit source, if not yet done
+        if( mbEditSourceEmpty && bCreate )
+            Switch2ProxyEditSource();
+
+        return mpEditSource->GetEditViewForwarder( bCreate );
+    }
+
+    std::unique_ptr<SvxEditSource> AccessibleEmptyEditSource::Clone() const
+    {
+        if (!mpEditSource)
+            return nullptr;
+
+        return mpEditSource->Clone();
+    }
+
+    void AccessibleEmptyEditSource::UpdateData()
+    {
+        if (mpEditSource)
+            mpEditSource->UpdateData();
+    }
+
+    SfxBroadcaster& AccessibleEmptyEditSource::GetBroadcaster() const
+    {
+        return *const_cast<AccessibleEmptyEditSource*>(this);
+    }
+
+    void AccessibleEmptyEditSource::Notify( SfxBroadcaster& /*rBC*/, const SfxHint& rHint )
+    {
+        const SdrHint* pSdrHint = ( rHint.GetId() == SfxHintId::ThisIsAnSdrHint ? static_cast<const SdrHint*>(&rHint) : nullptr );
+
+        if( pSdrHint && pSdrHint->GetKind() == SdrHintKind::BeginEdit &&
+            &mrObj == pSdrHint->GetObject() && mpEditSource )
+        {
+            // switch edit source, if not yet done. This is necessary
+            // to become a full-fledged EditSource the first time a
+            // user start entering text in a previously empty object.
+            if( mbEditSourceEmpty )
+                Switch2ProxyEditSource();
+        }
+        else if (pSdrHint && pSdrHint->GetObject()!=nullptr)
+        {
+            // When the SdrObject just got a para outliner object then
+            // switch the edit source.
+            if (pSdrHint->GetObject()->GetOutlinerParaObject() != nullptr)
+                Switch2ProxyEditSource();
+        }
+
+        // forward messages
+        Broadcast( rHint );
+    }
+
+} // end of namespace accessibility
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleEmptyEditSource.hxx b/svx/source/accessibility/AccessibleEmptyEditSource.hxx
new file mode 100644
index 0000000000..6cfceeda46
--- /dev/null
+++ b/svx/source/accessibility/AccessibleEmptyEditSource.hxx
@@ -0,0 +1,93 @@
+/* -*- 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_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLEEMPTYEDITSOURCE_HXX
+#define INCLUDED_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLEEMPTYEDITSOURCE_HXX
+
+#include <svl/SfxBroadcaster.hxx>
+#include <svl/lstner.hxx>
+
+#include <memory>
+#include <editeng/unoedsrc.hxx>
+
+class SdrObject;
+class SdrView;
+class OutputDevice;
+
+namespace accessibility
+{
+    /** Proxy edit source for shapes without text
+
+        Extracted from old SvxDummyEditSource
+     */
+    class AccessibleEmptyEditSource : public SvxEditSource, public SfxListener, public SfxBroadcaster
+    {
+    public:
+        /** Create proxy edit source for shapes without text
+
+            Since the views don't broadcast their dying, make sure that
+            this object gets destroyed if the view becomes invalid
+
+            The window is necessary, since our views can display on multiple windows
+
+            Make sure you only create such an object if the shape _really_
+            does not contain text.
+        */
+        AccessibleEmptyEditSource(  SdrObject& rObj, SdrView& rView, const OutputDevice& rViewWindow );
+        virtual ~AccessibleEmptyEditSource() override;
+
+        // from the SvxEditSource interface
+        SvxTextForwarder*       GetTextForwarder() override;
+        SvxViewForwarder*       GetViewForwarder() override;
+
+        std::unique_ptr<SvxEditSource> Clone() const override;
+
+        // this method internally switches from empty to proxy mode,
+        // creating an SvxTextEditSource for the functionality.
+        SvxEditViewForwarder*   GetEditViewForwarder( bool bCreate = false ) override;
+
+        void                    UpdateData() override;
+        SfxBroadcaster&         GetBroadcaster() const override;
+
+        // from the SfxListener interface
+        void                    Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+
+    private:
+        void Switch2ProxyEditSource();
+
+        /** Pointer to edit source implementation. This is switched on
+            a GetEditViewForwarder( true ) call, to actually create a
+            SvxTextEditSource.
+
+            @dyn
+         */
+        std::unique_ptr< SvxEditSource >  mpEditSource;
+
+        SdrObject&                      mrObj;
+        SdrView&                        mrView;
+        const OutputDevice&             mrViewWindow;
+
+        bool                            mbEditSourceEmpty;
+    };
+
+} // namespace accessibility
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleFrameSelector.cxx b/svx/source/accessibility/AccessibleFrameSelector.cxx
new file mode 100644
index 0000000000..39bdaa88fd
--- /dev/null
+++ b/svx/source/accessibility/AccessibleFrameSelector.cxx
@@ -0,0 +1,381 @@
+/* -*- 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 <AccessibleFrameSelector.hxx>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <svx/frmsel.hxx>
+#include <svx/dialmgr.hxx>
+
+#include <frmsel.hrc>
+
+namespace svx::a11y {
+
+using ::com::sun::star::lang::IndexOutOfBoundsException;
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::uno::RuntimeException;
+
+using namespace ::com::sun::star::accessibility;
+
+
+AccFrameSelector::AccFrameSelector(FrameSelector& rFrameSel)
+    : mpFrameSel(&rFrameSel)
+{
+}
+
+AccFrameSelector::~AccFrameSelector()
+{
+}
+
+Reference< XAccessibleContext > AccFrameSelector::getAccessibleContext(  )
+{
+    return this;
+}
+
+sal_Int64 AccFrameSelector::getAccessibleChildCount(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return mpFrameSel->GetEnabledBorderCount();
+}
+
+Reference< XAccessible > AccFrameSelector::getAccessibleChild( sal_Int64 i )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+
+    if (i < 0 || i >= getAccessibleChildCount())
+        throw IndexOutOfBoundsException();
+
+    Reference< XAccessible > xRet = mpFrameSel->GetChildAccessible( i );
+    if( !xRet.is() )
+        throw RuntimeException();
+    return xRet;
+}
+
+Reference< XAccessible > AccFrameSelector::getAccessibleParent(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    Reference< XAccessible > xRet = mpFrameSel->getAccessibleParent();
+    return xRet;
+}
+
+sal_Int16 AccFrameSelector::getAccessibleRole(  )
+{
+    return AccessibleRole::OPTION_PANE;
+}
+
+OUString AccFrameSelector::getAccessibleDescription(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return SvxResId(RID_SVXSTR_FRMSEL_DESCRIPTIONS[0].first);
+}
+
+OUString AccFrameSelector::getAccessibleName(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return SvxResId(RID_SVXSTR_FRMSEL_TEXTS[0].first);
+}
+
+Reference< XAccessibleRelationSet > AccFrameSelector::getAccessibleRelationSet(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return mpFrameSel->get_accessible_relation_set();
+}
+
+sal_Int64 AccFrameSelector::getAccessibleStateSet(  )
+{
+    SolarMutexGuard aGuard;
+    sal_Int64 nStateSet = 0;
+
+    if(!mpFrameSel)
+        nStateSet |= AccessibleStateType::DEFUNC;
+    else
+    {
+        // add standard states
+        nStateSet |=
+            AccessibleStateType::EDITABLE |
+            AccessibleStateType::FOCUSABLE |
+            AccessibleStateType::MULTI_SELECTABLE |
+            AccessibleStateType::SELECTABLE |
+            AccessibleStateType::SHOWING |
+            AccessibleStateType::VISIBLE |
+            AccessibleStateType::OPAQUE;
+        if(mpFrameSel->IsEnabled())
+        {
+            nStateSet |= AccessibleStateType::ENABLED;
+            nStateSet |= AccessibleStateType::SENSITIVE;
+        }
+
+        if (mpFrameSel->HasFocus())
+        {
+            nStateSet |= AccessibleStateType::ACTIVE;
+            nStateSet |= AccessibleStateType::FOCUSED;
+            nStateSet |= AccessibleStateType::SELECTED;
+        }
+    }
+    return nStateSet;
+}
+
+Reference< XAccessible > AccFrameSelector::getAccessibleAtPoint(
+    const css::awt::Point& aPt )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    //aPt is relative to the frame selector
+    return mpFrameSel->GetChildAccessible( Point( aPt.X, aPt.Y ) );
+}
+
+void AccFrameSelector::grabFocus(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    mpFrameSel->GrabFocus();
+}
+
+sal_Int32 AccFrameSelector::getForeground(  )
+{
+    SolarMutexGuard aGuard;
+
+    //see FrameSelector::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetLabelTextColor());
+}
+
+sal_Int32 AccFrameSelector::getBackground(  )
+{
+    SolarMutexGuard aGuard;
+
+    //see FrameSelector::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetDialogColor());
+}
+
+css::awt::Rectangle AccFrameSelector::implGetBounds()
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+
+    css::awt::Rectangle aRet;
+
+    const Point   aOutPos;
+    Size          aOutSize(mpFrameSel->GetOutputSizePixel());
+
+    aRet.X = aOutPos.X();
+    aRet.Y = aOutPos.Y();
+    aRet.Width = aOutSize.Width();
+    aRet.Height = aOutSize.Height();
+
+    return aRet;
+}
+
+css::awt::Point AccFrameSelector::getLocationOnScreen()
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+
+    css::awt::Point aScreenLoc(0, 0);
+
+    if (weld::DrawingArea* pDrawingArea = mpFrameSel->GetDrawingArea())
+    {
+        AbsoluteScreenPixelPoint aPos = pDrawingArea->get_accessible_location_on_screen();
+        aScreenLoc.X = aPos.X();
+        aScreenLoc.Y = aPos.Y();
+    }
+
+    return aScreenLoc;
+}
+
+void AccFrameSelector::IsValid()
+{
+    if(!mpFrameSel)
+        throw RuntimeException();
+}
+
+void AccFrameSelector::Invalidate()
+{
+    mpFrameSel = nullptr;
+}
+
+AccFrameSelectorChild::AccFrameSelectorChild(FrameSelector& rFrameSel, FrameBorderType eBorder)
+    : mpFrameSel(&rFrameSel)
+    , meBorder(eBorder)
+{
+}
+
+AccFrameSelectorChild::~AccFrameSelectorChild()
+{
+}
+
+Reference< XAccessibleContext > AccFrameSelectorChild::getAccessibleContext(  )
+{
+    return this;
+}
+
+sal_Int64 AccFrameSelectorChild::getAccessibleChildCount(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return 0;
+}
+
+Reference< XAccessible > AccFrameSelectorChild::getAccessibleChild( sal_Int64 )
+{
+    throw RuntimeException();
+}
+
+Reference< XAccessible > AccFrameSelectorChild::getAccessibleParent(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    Reference< XAccessible > xRet = mpFrameSel->CreateAccessible();
+    return xRet;
+}
+
+sal_Int16 AccFrameSelectorChild::getAccessibleRole(  )
+{
+    return AccessibleRole::CHECK_BOX;
+}
+
+OUString AccFrameSelectorChild::getAccessibleDescription(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return SvxResId(RID_SVXSTR_FRMSEL_DESCRIPTIONS[static_cast<sal_uInt32>(meBorder)].first);
+}
+
+OUString AccFrameSelectorChild::getAccessibleName(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    return SvxResId(RID_SVXSTR_FRMSEL_TEXTS[static_cast<sal_uInt32>(meBorder)].first);
+}
+
+Reference< XAccessibleRelationSet > AccFrameSelectorChild::getAccessibleRelationSet(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    Reference< XAccessibleRelationSet > xRet = new utl::AccessibleRelationSetHelper;
+    return xRet;
+}
+
+sal_Int64 AccFrameSelectorChild::getAccessibleStateSet(  )
+{
+    SolarMutexGuard aGuard;
+    sal_Int64 nStateSet = 0;
+
+    if(!mpFrameSel)
+        nStateSet |= AccessibleStateType::DEFUNC;
+    else
+    {
+        nStateSet |=
+            AccessibleStateType::EDITABLE |
+            AccessibleStateType::FOCUSABLE |
+            AccessibleStateType::MULTI_SELECTABLE |
+            AccessibleStateType::SELECTABLE |
+            AccessibleStateType::SHOWING |
+            AccessibleStateType::VISIBLE |
+            AccessibleStateType::OPAQUE;
+        if(mpFrameSel->IsEnabled())
+        {
+            nStateSet |= AccessibleStateType::ENABLED;
+            nStateSet |= AccessibleStateType::SENSITIVE;
+        }
+
+        if (mpFrameSel->HasFocus() && mpFrameSel->IsBorderSelected(meBorder))
+        {
+            nStateSet |= AccessibleStateType::ACTIVE;
+            nStateSet |= AccessibleStateType::FOCUSED;
+            nStateSet |= AccessibleStateType::SELECTED;
+        }
+    }
+    return nStateSet;
+}
+
+Reference< XAccessible > AccFrameSelectorChild::getAccessibleAtPoint(
+    const css::awt::Point& aPt )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    //aPt is relative to the frame selector
+    return mpFrameSel->GetChildAccessible( Point( aPt.X, aPt.Y ) );
+}
+
+css::awt::Rectangle AccFrameSelectorChild::implGetBounds(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    const tools::Rectangle aSpot = mpFrameSel->GetClickBoundRect( meBorder );
+    Point aPos = aSpot.TopLeft();
+    Size aSz = aSpot.GetSize();
+    css::awt::Rectangle aRet;
+    aRet.X = aPos.X();
+    aRet.Y = aPos.Y();
+    aRet.Width = aSz.Width();
+    aRet.Height = aSz.Height();
+    return aRet;
+}
+
+void AccFrameSelectorChild::grabFocus(  )
+{
+    SolarMutexGuard aGuard;
+    IsValid();
+    mpFrameSel->GrabFocus();
+}
+
+sal_Int32 AccFrameSelectorChild::getForeground(  )
+{
+    SolarMutexGuard aGuard;
+
+    //see FrameSelector::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetLabelTextColor());
+}
+
+sal_Int32 AccFrameSelectorChild::getBackground(  )
+{
+    SolarMutexGuard aGuard;
+
+    //see FrameSelector::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetDialogColor());
+}
+
+void AccFrameSelectorChild::IsValid()
+{
+    if(!mpFrameSel)
+        throw RuntimeException();
+}
+
+void AccFrameSelectorChild::Invalidate()
+{
+    mpFrameSel = nullptr;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleGraphicShape.cxx b/svx/source/accessibility/AccessibleGraphicShape.cxx
new file mode 100644
index 0000000000..d94ce4886a
--- /dev/null
+++ b/svx/source/accessibility/AccessibleGraphicShape.cxx
@@ -0,0 +1,144 @@
+/* -*- 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 <svx/AccessibleGraphicShape.hxx>
+
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/SvxShapeTypes.hxx>
+#include <svx/svdobj.hxx>
+
+#include <com/sun/star/drawing/XShape.hpp>
+#include <com/sun/star/drawing/XShapeDescriptor.hpp>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/queryinterface.hxx>
+
+using namespace ::accessibility;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+// internal
+AccessibleGraphicShape::AccessibleGraphicShape (
+    const AccessibleShapeInfo& rShapeInfo,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo)
+    : AccessibleShape (rShapeInfo, rShapeTreeInfo)
+{
+}
+
+
+AccessibleGraphicShape::~AccessibleGraphicShape()
+{
+}
+
+// XAccessibleImage
+OUString SAL_CALL AccessibleGraphicShape::getAccessibleImageDescription()
+{
+    if (m_pShape)
+        return m_pShape->GetTitle();
+    return AccessibleShape::getAccessibleDescription ();
+}
+
+
+sal_Int32 SAL_CALL AccessibleGraphicShape::getAccessibleImageHeight()
+{
+    return AccessibleShape::getSize().Height;
+}
+
+
+sal_Int32 SAL_CALL AccessibleGraphicShape::getAccessibleImageWidth()
+{
+    return AccessibleShape::getSize().Width;
+}
+
+// XInterface
+css::uno::Any SAL_CALL
+    AccessibleGraphicShape::queryInterface (const css::uno::Type & rType)
+{
+    css::uno::Any aReturn = AccessibleShape::queryInterface (rType);
+    if ( ! aReturn.hasValue())
+        aReturn = ::cppu::queryInterface (rType,
+            static_cast<XAccessibleImage*>(this));
+    return aReturn;
+}
+
+
+void SAL_CALL
+    AccessibleGraphicShape::acquire()
+    noexcept
+{
+    AccessibleShape::acquire ();
+}
+
+
+void SAL_CALL
+    AccessibleGraphicShape::release()
+    noexcept
+{
+    AccessibleShape::release ();
+}
+
+// XServiceInfo
+OUString SAL_CALL
+    AccessibleGraphicShape::getImplementationName()
+{
+    return "AccessibleGraphicShape";
+}
+
+
+css::uno::Sequence< OUString> SAL_CALL
+    AccessibleGraphicShape::getSupportedServiceNames()
+{
+    ThrowIfDisposed ();
+    const css::uno::Sequence<OUString> vals { "com.sun.star.drawing.AccessibleGraphicShape" };
+    return comphelper::concatSequences(AccessibleShape::getSupportedServiceNames(), vals);
+}
+
+// XTypeProvider
+uno::Sequence<uno::Type> SAL_CALL
+    AccessibleGraphicShape::getTypes()
+{
+    // Get list of types from the context base implementation...
+    return comphelper::concatSequences(AccessibleShape::getTypes(),
+            uno::Sequence { cppu::UnoType<XAccessibleImage>::get() });
+}
+
+
+/// Create the base name of this object, i.e. the name without appended number.
+OUString
+    AccessibleGraphicShape::CreateAccessibleBaseName()
+{
+    OUString sName;
+
+    ShapeTypeId nShapeType = ShapeTypeHandler::Instance().GetTypeId (mxShape);
+    switch (nShapeType)
+    {
+        case DRAWING_GRAPHIC_OBJECT:
+            sName = "GraphicObjectShape";
+            break;
+
+        default:
+            sName = "UnknownAccessibleGraphicShape";
+            uno::Reference<drawing::XShapeDescriptor> xDescriptor (mxShape);
+            if (xDescriptor.is())
+                sName += ": " + xDescriptor->getShapeType();
+    }
+
+    return sName;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleOLEShape.cxx b/svx/source/accessibility/AccessibleOLEShape.cxx
new file mode 100644
index 0000000000..9275ad1803
--- /dev/null
+++ b/svx/source/accessibility/AccessibleOLEShape.cxx
@@ -0,0 +1,172 @@
+/* -*- 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 <svx/AccessibleOLEShape.hxx>
+
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/SvxShapeTypes.hxx>
+#include <svx/svdoole2.hxx>
+
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/queryinterface.hxx>
+
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/drawing/XShape.hpp>
+#include <com/sun/star/drawing/XShapeDescriptor.hpp>
+
+using namespace ::accessibility;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::accessibility;
+
+// internal
+AccessibleOLEShape::AccessibleOLEShape (
+    const AccessibleShapeInfo& rShapeInfo,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo)
+    : AccessibleShape (rShapeInfo, rShapeTreeInfo)
+{
+}
+
+
+AccessibleOLEShape::~AccessibleOLEShape()
+{
+}
+
+// XAccessibleAction
+sal_Int32 SAL_CALL AccessibleOLEShape::getAccessibleActionCount()
+{
+    return 0;
+}
+
+
+sal_Bool SAL_CALL AccessibleOLEShape::doAccessibleAction (sal_Int32 /*nIndex*/)
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+
+OUString SAL_CALL AccessibleOLEShape::getAccessibleActionDescription (sal_Int32 /*nIndex*/)
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+
+Reference<XAccessibleKeyBinding> SAL_CALL AccessibleOLEShape::getAccessibleActionKeyBinding (sal_Int32 /*nIndex*/)
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+// XInterface
+css::uno::Any SAL_CALL
+    AccessibleOLEShape::queryInterface (const css::uno::Type & rType)
+{
+    css::uno::Any aReturn = AccessibleShape::queryInterface (rType);
+    if ( ! aReturn.hasValue())
+        aReturn = ::cppu::queryInterface (rType,
+            static_cast<XAccessibleAction*>(this));
+    return aReturn;
+}
+
+
+void SAL_CALL
+    AccessibleOLEShape::acquire()
+    noexcept
+{
+    AccessibleShape::acquire ();
+}
+
+
+void SAL_CALL
+    AccessibleOLEShape::release()
+    noexcept
+{
+    AccessibleShape::release ();
+}
+
+// XServiceInfo
+OUString SAL_CALL
+    AccessibleOLEShape::getImplementationName()
+{
+    return "AccessibleOLEShape";
+}
+
+
+css::uno::Sequence< OUString> SAL_CALL
+    AccessibleOLEShape::getSupportedServiceNames()
+{
+    ThrowIfDisposed();
+    const css::uno::Sequence<OUString> vals { "com.sun.star.drawing.AccessibleOLEShape" };
+    return comphelper::concatSequences(AccessibleShape::getSupportedServiceNames(), vals);
+}
+
+// XTypeProvider
+uno::Sequence<uno::Type> SAL_CALL AccessibleOLEShape::getTypes()
+{
+    // Get list of types from the context base implementation...
+    return comphelper::concatSequences(AccessibleShape::getTypes(),
+            uno::Sequence { cppu::UnoType<XAccessibleAction>::get() } );
+}
+
+// XAccessibleExtendedAttributes
+uno::Any SAL_CALL AccessibleOLEShape::getExtendedAttributes()
+{
+    uno::Any strRet;
+    OUString style;
+    if( m_pShape )
+    {
+        style = "style:" + static_cast<SdrOle2Obj*>(m_pShape)->GetStyleString();
+    }
+    style += ";";
+    strRet <<= style;
+    return strRet;
+}
+
+/// Set this object's name if is different to the current name.
+OUString
+    AccessibleOLEShape::CreateAccessibleBaseName()
+{
+    OUString sName;
+
+    ShapeTypeId nShapeType = ShapeTypeHandler::Instance().GetTypeId (mxShape);
+    switch (nShapeType)
+    {
+        case DRAWING_APPLET:
+            sName = "AppletOLEShape";
+            break;
+        case DRAWING_FRAME:
+            sName = "FrameOLEShape";
+            break;
+        case DRAWING_OLE:
+            sName = "OLEShape";
+            break;
+        case DRAWING_PLUGIN:
+            sName = "PluginOLEShape";
+            break;
+
+        default:
+            sName = "UnknownAccessibleOLEShape";
+            uno::Reference<drawing::XShapeDescriptor> xDescriptor (mxShape);
+            if (xDescriptor.is())
+                sName += ": " + xDescriptor->getShapeType();
+    }
+
+    return sName;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleShape.cxx b/svx/source/accessibility/AccessibleShape.cxx
new file mode 100644
index 0000000000..1edc2c8a26
--- /dev/null
+++ b/svx/source/accessibility/AccessibleShape.cxx
@@ -0,0 +1,1294 @@
+/* -*- 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 <svx/AccessibleShape.hxx>
+#include <svx/AccessibleShapeInfo.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/drawing/XShapes.hpp>
+#include <com/sun/star/document/XShapeEventBroadcaster.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/drawing/FillStyle.hpp>
+#include <com/sun/star/text/XText.hpp>
+#include <sal/log.hxx>
+#include <editeng/unoedsrc.hxx>
+#include <svx/AccessibleTextHelper.hxx>
+#include <svx/ChildrenManager.hxx>
+#include <svx/IAccessibleParent.hxx>
+#include <svx/IAccessibleViewForwarder.hxx>
+#include <svx/unoshtxt.hxx>
+#include <svx/svdobj.hxx>
+#include <svx/unoapi.hxx>
+#include <svx/svdpage.hxx>
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/SvxShapeTypes.hxx>
+
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <svx/svdview.hxx>
+#include <comphelper/diagnose_ex.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <comphelper/sequence.hxx>
+#include "AccessibleEmptyEditSource.hxx"
+
+#include <algorithm>
+#include <memory>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::lang::IndexOutOfBoundsException;
+using ::com::sun::star::uno::RuntimeException;
+
+namespace accessibility {
+
+namespace {
+
+OUString GetOptionalProperty (
+    const Reference<beans::XPropertySet>& rxSet,
+    const OUString& rsPropertyName)
+{
+    OUString sValue;
+
+    if (rxSet.is())
+    {
+        const Reference<beans::XPropertySetInfo> xInfo (rxSet->getPropertySetInfo());
+        if ( ! xInfo.is() || xInfo->hasPropertyByName(rsPropertyName))
+        {
+            try
+            {
+                rxSet->getPropertyValue(rsPropertyName) >>= sValue;
+            }
+            catch (beans::UnknownPropertyException&)
+            {
+                // This exception should only be thrown when the property
+                // does not exits (of course) and the XPropertySetInfo is
+                // not available.
+            }
+        }
+    }
+    return sValue;
+}
+
+} // end of anonymous namespace
+
+// internal
+AccessibleShape::AccessibleShape (
+    const AccessibleShapeInfo& rShapeInfo,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo)
+    : AccessibleContextBase (rShapeInfo.mxParent,AccessibleRole::SHAPE),
+      mxShape (rShapeInfo.mxShape),
+      maShapeTreeInfo (rShapeTreeInfo),
+      m_nIndexInParent(-1),
+      mpParent (rShapeInfo.mpChildrenManager)
+{
+    m_pShape = SdrObject::getSdrObjectFromXShape(mxShape);
+    UpdateNameAndDescription();
+}
+
+AccessibleShape::~AccessibleShape()
+{
+    mpChildrenManager.reset();
+    mpText.reset();
+    SAL_INFO("svx", "~AccessibleShape");
+
+    // Unregistering from the various broadcasters should be unnecessary
+    // since this destructor would not have been called if one of the
+    // broadcasters would still hold a strong reference to this object.
+}
+
+void AccessibleShape::Init()
+{
+    // Update the OPAQUE and SELECTED shape.
+    UpdateStates ();
+
+    // Create a children manager when this shape has children of its own.
+    Reference<drawing::XShapes> xShapes (mxShape, uno::UNO_QUERY);
+    if (xShapes.is() && xShapes->getCount() > 0)
+        mpChildrenManager.reset( new ChildrenManager (
+            this, xShapes, maShapeTreeInfo, *this) );
+    if (mpChildrenManager != nullptr)
+        mpChildrenManager->Update();
+
+    // Register at model as document::XEventListener.
+    if (mxShape.is() && maShapeTreeInfo.GetModelBroadcaster().is())
+        maShapeTreeInfo.GetModelBroadcaster()->addShapeEventListener(mxShape,
+            static_cast<document::XShapeEventListener*>(this));
+
+    // Beware! Here we leave the paths of the UNO API and descend into the
+    // depths of the core.  Necessary for making the edit engine
+    // accessible.
+    Reference<text::XText> xText (mxShape, uno::UNO_QUERY);
+    if (!xText.is())
+        return;
+
+    SdrView* pView = maShapeTreeInfo.GetSdrView ();
+    const vcl::Window* pWindow = maShapeTreeInfo.GetWindow ();
+    if (!(pView != nullptr && pWindow != nullptr && mxShape.is()))
+        return;
+
+    // #107948# Determine whether shape text is empty
+    SdrObject* pSdrObject = SdrObject::getSdrObjectFromXShape(mxShape);
+    if( !pSdrObject )
+        return;
+
+    SdrTextObj* pTextObj = DynCastSdrTextObj( pSdrObject  );
+    const bool hasOutlinerParaObject = (pTextObj && pTextObj->CanCreateEditOutlinerParaObject()) || (pSdrObject->GetOutlinerParaObject() != nullptr);
+
+    // create AccessibleTextHelper to handle this shape's text
+    if( !hasOutlinerParaObject )
+    {
+        // empty text -> use proxy edit source to delay creation of EditEngine
+        mpText.reset( new AccessibleTextHelper( std::make_unique<AccessibleEmptyEditSource >(*pSdrObject, *pView, *pWindow->GetOutDev()) ) );
+    }
+    else
+    {
+        // non-empty text -> use full-fledged edit source right away
+        mpText.reset( new AccessibleTextHelper( std::make_unique<SvxTextEditSource >(*pSdrObject, nullptr, *pView, *pWindow->GetOutDev()) ) );
+    }
+    if( pWindow->HasFocus() )
+        mpText->SetFocus();
+
+    mpText->SetEventSource(this);
+}
+
+
+void AccessibleShape::UpdateStates()
+{
+    // Set the opaque state for certain shape types when their fill style is
+    // solid.
+    bool bShapeIsOpaque = false;
+    switch (ShapeTypeHandler::Instance().GetTypeId (mxShape))
+    {
+        case DRAWING_PAGE:
+        case DRAWING_RECTANGLE:
+        case DRAWING_TEXT:
+        {
+            uno::Reference<beans::XPropertySet> xSet (mxShape, uno::UNO_QUERY);
+            if (xSet.is())
+            {
+                try
+                {
+                    drawing::FillStyle aFillStyle;
+                    bShapeIsOpaque =  ( xSet->getPropertyValue ("FillStyle") >>= aFillStyle)
+                                        && aFillStyle == drawing::FillStyle_SOLID;
+                }
+                catch (css::beans::UnknownPropertyException&)
+                {
+                    // Ignore.
+                }
+            }
+        }
+    }
+    if (bShapeIsOpaque)
+        mnStateSet |= AccessibleStateType::OPAQUE;
+    else
+        mnStateSet &= ~AccessibleStateType::OPAQUE;
+
+    // Set the selected state.
+    bool bShapeIsSelected = false;
+    // XXX fix_me this has to be done with an extra interface later on
+    if ( m_pShape && maShapeTreeInfo.GetSdrView() )
+    {
+        bShapeIsSelected = maShapeTreeInfo.GetSdrView()->IsObjMarked(m_pShape);
+    }
+
+    if (bShapeIsSelected)
+        mnStateSet |= AccessibleStateType::SELECTED;
+    else
+        mnStateSet &= ~AccessibleStateType::SELECTED;
+}
+
+OUString AccessibleShape::GetStyle() const
+{
+    return ShapeTypeHandler::CreateAccessibleBaseName( mxShape );
+}
+
+bool AccessibleShape::SetState (sal_Int64 aState)
+{
+    bool bStateHasChanged = false;
+
+    if (aState == AccessibleStateType::FOCUSED && mpText != nullptr)
+    {
+        // Offer FOCUSED state to edit engine and detect whether the state
+        // changes.
+        bool bIsFocused = mpText->HaveFocus ();
+        mpText->SetFocus();
+        bStateHasChanged = (bIsFocused != mpText->HaveFocus ());
+    }
+    else
+        bStateHasChanged = AccessibleContextBase::SetState (aState);
+
+    return bStateHasChanged;
+}
+
+
+bool AccessibleShape::ResetState (sal_Int64 aState)
+{
+    bool bStateHasChanged = false;
+
+    if (aState == AccessibleStateType::FOCUSED && mpText != nullptr)
+    {
+        // Try to remove FOCUSED state from the edit engine and detect
+        // whether the state changes.
+        bool bIsFocused = mpText->HaveFocus ();
+        mpText->SetFocus (false);
+        bStateHasChanged = (bIsFocused != mpText->HaveFocus ());
+    }
+    else
+        bStateHasChanged = AccessibleContextBase::ResetState (aState);
+
+    return bStateHasChanged;
+}
+
+
+bool AccessibleShape::GetState (sal_Int64 aState)
+{
+    if (aState == AccessibleStateType::FOCUSED && mpText != nullptr)
+    {
+        // Just delegate the call to the edit engine.  The state is not
+        // merged into the state set.
+        return mpText->HaveFocus();
+    }
+    else
+        return AccessibleContextBase::GetState (aState);
+}
+
+// OverWrite the parent's getAccessibleName method
+OUString SAL_CALL AccessibleShape::getAccessibleName()
+{
+    ThrowIfDisposed ();
+    if (m_pShape && !m_pShape->GetTitle().isEmpty())
+        return CreateAccessibleName() + " " + m_pShape->GetTitle();
+    else
+        return CreateAccessibleName();
+}
+
+OUString SAL_CALL AccessibleShape::getAccessibleDescription()
+{
+    ThrowIfDisposed ();
+    if( m_pShape && !m_pShape->GetDescription().isEmpty())
+        return m_pShape->GetDescription() ;
+    else
+        return " ";
+}
+
+// XAccessibleContext
+/** The children of this shape come from two sources: The children from
+    group or scene shapes and the paragraphs of text.
+*/
+sal_Int64 SAL_CALL
+       AccessibleShape::getAccessibleChildCount ()
+{
+    if (IsDisposed())
+    {
+        return 0;
+    }
+
+    sal_Int64 nChildCount = 0;
+
+    // Add the number of shapes that are children of this shape.
+    if (mpChildrenManager != nullptr)
+        nChildCount += mpChildrenManager->GetChildCount ();
+    // Add the number text paragraphs.
+    if (mpText != nullptr)
+        nChildCount += mpText->GetChildCount ();
+
+    return nChildCount;
+}
+
+
+/** Forward the request to the shape.  Return the requested shape or throw
+    an exception for a wrong index.
+*/
+uno::Reference<XAccessible> SAL_CALL
+    AccessibleShape::getAccessibleChild (sal_Int64 nIndex)
+{
+    ThrowIfDisposed ();
+
+    uno::Reference<XAccessible> xChild;
+
+    // Depending on the index decide whether to delegate this call to the
+    // children manager or the edit engine.
+    if ((mpChildrenManager != nullptr)
+        && (nIndex < mpChildrenManager->GetChildCount()))
+    {
+        xChild = mpChildrenManager->GetChild (nIndex);
+    }
+    else if (mpText != nullptr)
+    {
+        sal_Int64 nI = nIndex;
+        if (mpChildrenManager != nullptr)
+            nI -= mpChildrenManager->GetChildCount();
+        xChild = mpText->GetChild (nI);
+    }
+    else
+        throw lang::IndexOutOfBoundsException (
+            "shape has no child with index " + OUString::number(nIndex),
+            getXWeak());
+
+    return xChild;
+}
+
+uno::Reference<XAccessibleRelationSet> SAL_CALL
+    AccessibleShape::getAccessibleRelationSet()
+{
+    ::osl::MutexGuard aGuard (m_aMutex);
+    if (mpParent == nullptr)
+        return uno::Reference<XAccessibleRelationSet>();
+
+    rtl::Reference<::utl::AccessibleRelationSetHelper> pRelationSet = new utl::AccessibleRelationSetHelper;
+
+    //this mxshape is the captioned shape
+    uno::Sequence< uno::Reference< uno::XInterface > > aSequence { mpParent->GetAccessibleCaption(mxShape) };
+    if(aSequence[0])
+    {
+        pRelationSet->AddRelation(
+                                  AccessibleRelation( AccessibleRelationType::DESCRIBED_BY, aSequence ) );
+    }
+    return pRelationSet;
+}
+
+/** Return a copy of the state set.
+    Possible states are:
+        ENABLED
+        SHOWING
+        VISIBLE
+*/
+sal_Int64 SAL_CALL
+    AccessibleShape::getAccessibleStateSet()
+{
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    if (IsDisposed())
+    {
+        // Return a minimal state set that only contains the DEFUNC state.
+        return AccessibleContextBase::getAccessibleStateSet ();
+    }
+
+    // Merge current FOCUSED state from edit engine.
+    if (mpText)
+    {
+        if (mpText->HaveFocus())
+            mnStateSet |= AccessibleStateType::FOCUSED;
+        else
+            mnStateSet &= ~AccessibleStateType::FOCUSED;
+    }
+    //Just when the document is not read-only,set states EDITABLE,RESIZABLE,MOVEABLE
+    css::uno::Reference<XAccessible> xTempAcc = getAccessibleParent();
+    if( xTempAcc.is() )
+    {
+        css::uno::Reference<XAccessibleContext>
+                                xTempAccContext = xTempAcc->getAccessibleContext();
+        if( xTempAccContext.is() )
+        {
+            sal_Int64 nState = xTempAccContext->getAccessibleStateSet();
+            if (nState & AccessibleStateType::EDITABLE)
+            {
+                mnStateSet |= AccessibleStateType::EDITABLE;
+                mnStateSet |= AccessibleStateType::RESIZABLE;
+                mnStateSet |= AccessibleStateType::MOVEABLE;
+            }
+        }
+    }
+
+    sal_Int64 nRetStateSet = mnStateSet;
+
+    if (mpParent && mpParent->IsDocumentSelAll())
+    {
+        nRetStateSet |= AccessibleStateType::SELECTED;
+    }
+
+    return nRetStateSet;
+}
+
+// XAccessibleComponent
+/** The implementation below is at the moment straightforward.  It iterates
+    over all children (and thereby instances all children which have not
+    been already instantiated) until a child covering the specified point is
+    found.
+    This leaves room for improvement.  For instance, first iterate only over
+    the already instantiated children and only if no match is found
+    instantiate the remaining ones.
+*/
+uno::Reference<XAccessible > SAL_CALL
+    AccessibleShape::getAccessibleAtPoint (
+        const awt::Point& aPoint)
+{
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    sal_Int64 nChildCount = getAccessibleChildCount ();
+    for (sal_Int64 i = 0; i < nChildCount; ++i)
+    {
+        Reference<XAccessible> xChild (getAccessibleChild (i));
+        if (xChild.is())
+        {
+            Reference<XAccessibleComponent> xChildComponent (
+                xChild->getAccessibleContext(), uno::UNO_QUERY);
+            if (xChildComponent.is())
+            {
+                awt::Rectangle aBBox (xChildComponent->getBounds());
+                if ( (aPoint.X >= aBBox.X)
+                    && (aPoint.Y >= aBBox.Y)
+                    && (aPoint.X < aBBox.X+aBBox.Width)
+                    && (aPoint.Y < aBBox.Y+aBBox.Height) )
+                    return xChild;
+            }
+        }
+    }
+
+    // Have not found a child under the given point.  Returning empty
+    // reference to indicate this.
+    return uno::Reference<XAccessible>();
+}
+
+
+awt::Rectangle SAL_CALL AccessibleShape::getBounds()
+{
+    SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    ThrowIfDisposed ();
+    awt::Rectangle aBoundingBox;
+    if ( mxShape.is() )
+    {
+
+        static constexpr OUString sBoundRectName = u"BoundRect"_ustr;
+        static constexpr OUString sAnchorPositionName = u"AnchorPosition"_ustr;
+
+        // Get the shape's bounding box in internal coordinates (in 100th of
+        // mm).  Use the property BoundRect.  Only if that is not supported ask
+        // the shape for its position and size directly.
+        Reference<beans::XPropertySet> xSet (mxShape, uno::UNO_QUERY);
+        Reference<beans::XPropertySetInfo> xSetInfo;
+        bool bFoundBoundRect = false;
+        if (xSet.is())
+        {
+            xSetInfo = xSet->getPropertySetInfo ();
+            if (xSetInfo.is())
+            {
+                if (xSetInfo->hasPropertyByName (sBoundRectName))
+                {
+                    try
+                    {
+                        uno::Any aValue = xSet->getPropertyValue (sBoundRectName);
+                        aValue >>= aBoundingBox;
+                        bFoundBoundRect = true;
+                    }
+                    catch (beans::UnknownPropertyException const&)
+                    {
+                        // Handled below (bFoundBoundRect stays false).
+                    }
+                }
+                else
+                    SAL_WARN("svx", "no property BoundRect");
+            }
+        }
+
+        // Fallback when there is no BoundRect Property.
+        if ( ! bFoundBoundRect )
+        {
+            awt::Point aPosition (mxShape->getPosition());
+            awt::Size aSize (mxShape->getSize());
+            aBoundingBox = awt::Rectangle (
+                aPosition.X, aPosition.Y,
+                aSize.Width, aSize.Height);
+
+            // While BoundRects have absolute positions, the position returned
+            // by XPosition::getPosition is relative.  Get the anchor position
+            // (usually not (0,0) for Writer shapes).
+            if (xSetInfo.is())
+            {
+                if (xSetInfo->hasPropertyByName (sAnchorPositionName))
+                {
+                    uno::Any aPos = xSet->getPropertyValue (sAnchorPositionName);
+                    awt::Point aAnchorPosition;
+                    aPos >>= aAnchorPosition;
+                    aBoundingBox.X += aAnchorPosition.X;
+                    aBoundingBox.Y += aAnchorPosition.Y;
+                }
+            }
+        }
+
+        // Transform coordinates from internal to pixel.
+        if (maShapeTreeInfo.GetViewForwarder() == nullptr)
+            throw uno::RuntimeException (
+                "AccessibleShape has no valid view forwarder",
+                getXWeak());
+        ::Size aPixelSize = maShapeTreeInfo.GetViewForwarder()->LogicToPixel (
+            ::Size (aBoundingBox.Width, aBoundingBox.Height));
+        ::Point aPixelPosition = maShapeTreeInfo.GetViewForwarder()->LogicToPixel (
+            ::Point (aBoundingBox.X, aBoundingBox.Y));
+
+        // Clip the shape's bounding box with the bounding box of its parent.
+        Reference<XAccessibleComponent> xParentComponent (
+            getAccessibleParent(), uno::UNO_QUERY);
+        if (xParentComponent.is())
+        {
+            // Make the coordinates relative to the parent.
+            awt::Point aParentLocation (xParentComponent->getLocationOnScreen());
+            int x = aPixelPosition.getX() - aParentLocation.X;
+            int y = aPixelPosition.getY() - aParentLocation.Y;
+
+            // Clip with parent (with coordinates relative to itself).
+            ::tools::Rectangle aBBox (
+                x, y, x + aPixelSize.getWidth(), y + aPixelSize.getHeight());
+            awt::Size aParentSize (xParentComponent->getSize());
+            ::tools::Rectangle aParentBBox (0,0, aParentSize.Width, aParentSize.Height);
+            aBBox = aBBox.GetIntersection (aParentBBox);
+            aBoundingBox = awt::Rectangle (
+                aBBox.Left(),
+                aBBox.Top(),
+                aBBox.getOpenWidth(),
+                aBBox.getOpenHeight());
+        }
+        else
+        {
+            SAL_INFO("svx", "parent does not support component");
+            aBoundingBox = awt::Rectangle (
+                aPixelPosition.getX(), aPixelPosition.getY(),
+                aPixelSize.getWidth(), aPixelSize.getHeight());
+        }
+    }
+
+    return aBoundingBox;
+}
+
+
+awt::Point SAL_CALL AccessibleShape::getLocation()
+{
+    ThrowIfDisposed ();
+    awt::Rectangle aBoundingBox (getBounds());
+    return awt::Point (aBoundingBox.X, aBoundingBox.Y);
+}
+
+
+awt::Point SAL_CALL AccessibleShape::getLocationOnScreen()
+{
+    ThrowIfDisposed ();
+
+    // Get relative position...
+    awt::Point aLocation (getLocation ());
+
+    // ... and add absolute position of the parent.
+    uno::Reference<XAccessibleComponent> xParentComponent (
+        getAccessibleParent(), uno::UNO_QUERY);
+    if (xParentComponent.is())
+    {
+        awt::Point aParentLocation (xParentComponent->getLocationOnScreen());
+        aLocation.X += aParentLocation.X;
+        aLocation.Y += aParentLocation.Y;
+    }
+    else
+        SAL_WARN("svx", "parent does not support XAccessibleComponent");
+    return aLocation;
+}
+
+
+awt::Size SAL_CALL AccessibleShape::getSize()
+{
+    ThrowIfDisposed ();
+    awt::Rectangle aBoundingBox (getBounds());
+    return awt::Size (aBoundingBox.Width, aBoundingBox.Height);
+}
+
+
+sal_Int32 SAL_CALL AccessibleShape::getForeground()
+{
+    ThrowIfDisposed ();
+    sal_Int32 nColor (0x0ffffffL);
+
+    try
+    {
+        uno::Reference<beans::XPropertySet> aSet (mxShape, uno::UNO_QUERY);
+        if (aSet.is())
+        {
+            uno::Any aColor;
+            aColor = aSet->getPropertyValue ("LineColor");
+            aColor >>= nColor;
+        }
+    }
+    catch (const css::beans::UnknownPropertyException &)
+    {
+        // Ignore exception and return default color.
+    }
+    return nColor;
+}
+
+
+sal_Int32 SAL_CALL AccessibleShape::getBackground()
+{
+    ThrowIfDisposed ();
+    Color nColor;
+
+    try
+    {
+        uno::Reference<beans::XPropertySet> aSet (mxShape, uno::UNO_QUERY);
+        if (aSet.is())
+        {
+            uno::Any aColor;
+            aColor = aSet->getPropertyValue ("FillColor");
+            aColor >>= nColor;
+            aColor = aSet->getPropertyValue ("FillTransparence");
+            short nTrans=0;
+            aColor >>= nTrans;
+            Color crBk(nColor);
+            if (nTrans == 0 )
+            {
+                crBk.SetAlpha(0);
+            }
+            else
+            {
+                nTrans = short(256 - nTrans / 100. * 256);
+                crBk.SetAlpha(255 - sal_uInt8(nTrans));
+            }
+            nColor = crBk;
+        }
+    }
+    catch (const css::beans::UnknownPropertyException &)
+    {
+        // Ignore exception and return default color.
+    }
+    return sal_Int32(nColor);
+}
+
+// XAccessibleEventBroadcaster
+void SAL_CALL AccessibleShape::addAccessibleEventListener (
+    const Reference<XAccessibleEventListener >& rxListener)
+{
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+    {
+        uno::Reference<uno::XInterface> xThis (
+            static_cast<lang::XComponent *>(this), uno::UNO_QUERY);
+        rxListener->disposing (lang::EventObject (xThis));
+    }
+    else
+    {
+        AccessibleContextBase::addAccessibleEventListener (rxListener);
+        if (mpText != nullptr)
+            mpText->AddEventListener (rxListener);
+    }
+}
+
+
+void SAL_CALL AccessibleShape::removeAccessibleEventListener (
+    const Reference<XAccessibleEventListener >& rxListener)
+{
+    AccessibleContextBase::removeAccessibleEventListener (rxListener);
+    if (mpText != nullptr)
+        mpText->RemoveEventListener (rxListener);
+}
+
+// XInterface
+css::uno::Any SAL_CALL
+    AccessibleShape::queryInterface (const css::uno::Type & rType)
+{
+    css::uno::Any aReturn = AccessibleContextBase::queryInterface (rType);
+    if ( ! aReturn.hasValue())
+        aReturn = ::cppu::queryInterface (rType,
+            static_cast<XAccessibleComponent*>(this),
+            static_cast<XAccessibleExtendedComponent*>(this),
+            static_cast< css::accessibility::XAccessibleSelection* >(this),
+            static_cast< css::accessibility::XAccessibleExtendedAttributes* >(this),
+            static_cast<document::XShapeEventListener*>(this),
+            static_cast<lang::XUnoTunnel*>(this),
+            static_cast<XAccessibleGroupPosition*>(this),
+            static_cast<XAccessibleHypertext*>(this)
+            );
+    return aReturn;
+}
+
+
+void SAL_CALL
+    AccessibleShape::acquire()
+    noexcept
+{
+    AccessibleContextBase::acquire ();
+}
+
+
+void SAL_CALL
+    AccessibleShape::release()
+    noexcept
+{
+    AccessibleContextBase::release ();
+}
+
+// XAccessibleSelection
+void SAL_CALL AccessibleShape::selectAccessibleChild( sal_Int64 )
+{
+}
+
+
+sal_Bool SAL_CALL AccessibleShape::isAccessibleChildSelected( sal_Int64 nChildIndex )
+{
+    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;
+            }
+        }
+        else if( xContext->getAccessibleRole() == AccessibleRole::SHAPE )
+        {
+            sal_Int64 pRState = xContext->getAccessibleStateSet();
+
+            return bool(pRState & AccessibleStateType::SELECTED);
+        }
+    }
+
+    return false;
+}
+
+
+void SAL_CALL AccessibleShape::clearAccessibleSelection(  )
+{
+}
+
+
+void SAL_CALL AccessibleShape::selectAllAccessibleChildren(  )
+{
+}
+
+
+sal_Int64 SAL_CALL AccessibleShape::getSelectedAccessibleChildCount()
+{
+    sal_Int64 nCount = 0;
+    sal_Int64 TotalCount = getAccessibleChildCount();
+    for( sal_Int64 i = 0; i < TotalCount; i++ )
+        if( isAccessibleChildSelected(i) ) nCount++;
+
+    return nCount;
+}
+
+
+Reference<XAccessible> SAL_CALL AccessibleShape::getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex )
+{
+    if ( nSelectedChildIndex > getSelectedAccessibleChildCount() )
+        throw IndexOutOfBoundsException();
+    for (sal_Int64 i1 = 0, i2 = 0; i1 < getAccessibleChildCount(); i1++)
+        if( isAccessibleChildSelected(i1) )
+        {
+            if( i2 == nSelectedChildIndex )
+                return getAccessibleChild( i1 );
+            i2++;
+        }
+    return Reference<XAccessible>();
+}
+
+
+void SAL_CALL AccessibleShape::deselectAccessibleChild( sal_Int64 )
+{
+
+}
+
+// XAccessibleExtendedAttributes
+uno::Any SAL_CALL AccessibleShape::getExtendedAttributes()
+{
+    uno::Any strRet;
+    OUString style;
+    if( getAccessibleRole() != AccessibleRole::SHAPE ) return strRet;
+    if( m_pShape )
+    {
+        style = "style:" + GetStyle();
+    }
+    style += ";";
+    strRet <<= style;
+    return strRet;
+}
+
+// XServiceInfo
+OUString SAL_CALL
+    AccessibleShape::getImplementationName()
+{
+    return "AccessibleShape";
+}
+
+
+uno::Sequence<OUString> SAL_CALL
+    AccessibleShape::getSupportedServiceNames()
+{
+    ThrowIfDisposed ();
+    const css::uno::Sequence<OUString> vals { "com.sun.star.drawing.AccessibleShape" };
+    return comphelper::concatSequences(AccessibleContextBase::getSupportedServiceNames(), vals);
+}
+
+// XTypeProvider
+uno::Sequence<uno::Type> SAL_CALL
+    AccessibleShape::getTypes()
+{
+    ThrowIfDisposed ();
+    // Get list of types from the context base implementation, ...
+    uno::Sequence<uno::Type> aTypeList (AccessibleContextBase::getTypes());
+    // ... get list of types from component base implementation, ...
+    uno::Sequence<uno::Type> aComponentTypeList (AccessibleComponentBase::getTypes());
+    // ... define local types
+    uno::Sequence<uno::Type> localTypesList = {
+        cppu::UnoType<lang::XEventListener>::get(),
+        cppu::UnoType<document::XEventListener>::get(),
+        cppu::UnoType<lang::XUnoTunnel>::get()
+    };
+
+    return comphelper::concatSequences(aTypeList, aComponentTypeList, localTypesList);
+}
+
+// lang::XEventListener
+/** Disposing calls are accepted only from the model: Just reset the
+    reference to the model in the shape tree info.  Otherwise this object
+    remains functional.
+*/
+void AccessibleShape::disposing (const lang::EventObject& aEvent)
+{
+    SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    try
+    {
+        if (aEvent.Source ==  maShapeTreeInfo.GetModelBroadcaster())
+        {
+            // Remove reference to model broadcaster to allow it to pass
+            // away.
+            maShapeTreeInfo.SetModelBroadcaster(nullptr);
+        }
+
+    }
+    catch (uno::RuntimeException const&)
+    {
+        TOOLS_WARN_EXCEPTION("svx", "caught exception while disposing");
+    }
+    mpChildrenManager.reset();
+    mxShape.clear();
+    maShapeTreeInfo.dispose();
+    mpText.reset();
+}
+
+// document::XShapeEventListener
+void SAL_CALL
+    AccessibleShape::notifyShapeEvent (const document::EventObject& rEventObject)
+{
+    if (rEventObject.EventName != "ShapeModified")
+        return;
+
+    //Need to update text children when receiving ShapeModified hint when exiting edit mode for text box
+    if (mpText)
+        mpText->UpdateChildren();
+
+
+    // Some property of a shape has been modified.  Send an event
+    // that indicates a change of the visible data to all listeners.
+    CommitChange (
+        AccessibleEventId::VISIBLE_DATA_CHANGED,
+        uno::Any(),
+        uno::Any(), -1);
+
+    // Name and Description may have changed.  Update the local
+    // values accordingly.
+    UpdateNameAndDescription();
+}
+
+// lang::XUnoTunnel
+UNO3_GETIMPLEMENTATION_IMPL(AccessibleShape)
+
+// IAccessibleViewForwarderListener
+void AccessibleShape::ViewForwarderChanged()
+{
+    // Inform all listeners that the graphical representation (i.e. size
+    // and/or position) of the shape has changed.
+    CommitChange (AccessibleEventId::VISIBLE_DATA_CHANGED,
+        uno::Any(),
+        uno::Any(), -1);
+
+    // Tell children manager of the modified view forwarder.
+    if (mpChildrenManager != nullptr)
+        mpChildrenManager->ViewForwarderChanged();
+
+    // update our children that our screen position might have changed
+    if( mpText )
+        mpText->UpdateChildren();
+}
+
+// protected internal
+// Set this object's name if is different to the current name.
+OUString AccessibleShape::CreateAccessibleBaseName()
+{
+    return ShapeTypeHandler::CreateAccessibleBaseName( mxShape );
+}
+
+
+OUString AccessibleShape::CreateAccessibleName()
+{
+    return GetFullAccessibleName(this);
+}
+
+OUString AccessibleShape::GetFullAccessibleName (AccessibleShape *shape)
+{
+    OUString sName (shape->CreateAccessibleBaseName());
+    // Append the shape's index to the name to disambiguate between shapes
+    // of the same type.  If such an index where not given to the
+    // constructor then use the z-order instead.  If even that does not exist
+    // we throw an exception.
+    OUString nameStr;
+    if (shape->m_pShape)
+        nameStr = shape->m_pShape->GetName();
+    if (nameStr.isEmpty())
+    {
+        sName += " ";
+    }
+    else
+    {
+        sName = nameStr;
+    }
+
+    //If the new produced name if not the same with last,notify name changed
+    //Event
+    if (aAccName != sName && !aAccName.isEmpty())
+    {
+        uno::Any aOldValue, aNewValue;
+        aOldValue <<= aAccName;
+        aNewValue <<= sName;
+        CommitChange(
+            AccessibleEventId::NAME_CHANGED,
+            aNewValue,
+            aOldValue, -1);
+    }
+    aAccName = sName;
+    return sName;
+}
+
+// protected
+void AccessibleShape::disposing()
+{
+    SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard aGuard (m_aMutex);
+
+    // Make sure to send an event that this object loses the focus in the
+    // case that it has the focus.
+    mnStateSet &= ~AccessibleStateType::FOCUSED;
+
+    // Unregister from model.
+    if (mxShape.is() && maShapeTreeInfo.GetModelBroadcaster().is())
+        maShapeTreeInfo.GetModelBroadcaster()->removeShapeEventListener(mxShape,
+            static_cast<document::XShapeEventListener*>(this));
+
+    // Release the child containers.
+    if (mpChildrenManager != nullptr)
+    {
+        mpChildrenManager.reset();
+    }
+    if (mpText != nullptr)
+    {
+        mpText->Dispose();
+        mpText.reset();
+    }
+
+    // Cleanup.  Remove references to objects to allow them to be
+    // destroyed.
+    mxShape = nullptr;
+    maShapeTreeInfo.dispose();
+
+    // Call base classes.
+    AccessibleContextBase::dispose ();
+}
+
+sal_Int64 SAL_CALL
+       AccessibleShape::getAccessibleIndexInParent()
+{
+    ThrowIfDisposed ();
+    //  Use a simple but slow solution for now.  Optimize later.
+
+    sal_Int64 nIndex = m_nIndexInParent;
+    if ( -1 == nIndex )
+        nIndex = AccessibleContextBase::getAccessibleIndexInParent();
+    return nIndex;
+}
+
+
+void AccessibleShape::UpdateNameAndDescription()
+{
+    // Ignore missing title, name, or description.  There are fallbacks for
+    // them.
+    try
+    {
+        Reference<beans::XPropertySet> xSet (mxShape, uno::UNO_QUERY_THROW);
+
+        // Get the accessible name.
+        OUString sString = GetOptionalProperty(xSet, "Title");
+        if (!sString.isEmpty())
+        {
+            SetAccessibleName(sString, AccessibleContextBase::FromShape);
+        }
+        else
+        {
+            sString = GetOptionalProperty(xSet, "Name");
+            if (!sString.isEmpty())
+                SetAccessibleName(sString, AccessibleContextBase::FromShape);
+        }
+
+        // Get the accessible description.
+        sString = GetOptionalProperty(xSet, "Description");
+        if (!sString.isEmpty())
+            SetAccessibleDescription(sString, AccessibleContextBase::FromShape);
+    }
+    catch (uno::RuntimeException&)
+    {
+    }
+}
+
+//  Return this object's role.
+sal_Int16 SAL_CALL AccessibleShape::getAccessibleRole()
+{
+    sal_Int16 nAccessibleRole =  AccessibleRole::SHAPE ;
+    switch (ShapeTypeHandler::Instance().GetTypeId (mxShape))
+    {
+        case     DRAWING_GRAPHIC_OBJECT:
+                 nAccessibleRole =  AccessibleRole::GRAPHIC ;               break;
+        case     DRAWING_OLE:
+                 nAccessibleRole =  AccessibleRole::EMBEDDED_OBJECT ;       break;
+
+        default:
+            nAccessibleRole = AccessibleContextBase::getAccessibleRole();
+            break;
+    }
+
+    return nAccessibleRole;
+}
+
+namespace {
+
+//sort the drawing objects from up to down, from left to right
+struct XShapePosCompareHelper
+{
+    bool operator() ( const uno::Reference<drawing::XShape>& xshape1,
+        const uno::Reference<drawing::XShape>& xshape2 ) const
+    {
+        SdrObject* pObj1 = SdrObject::getSdrObjectFromXShape(xshape1);
+        SdrObject* pObj2 = SdrObject::getSdrObjectFromXShape(xshape2);
+        if(pObj1 && pObj2)
+            return pObj1->GetOrdNum() < pObj2->GetOrdNum();
+        else
+            return false;
+    }
+};
+
+}
+//end of group position
+
+// XAccessibleGroupPosition
+uno::Sequence< sal_Int32 > SAL_CALL
+AccessibleShape::getGroupPosition( const uno::Any& )
+{
+    // we will return the:
+    // [0] group level
+    // [1] similar items counts in the group
+    // [2] the position of the object in the group
+    uno::Sequence< sal_Int32 > aRet{ 0, 0, 0 };
+
+    css::uno::Reference<XAccessible> xParent = getAccessibleParent();
+    if (!xParent.is())
+    {
+        return aRet;
+    }
+    SdrObject *pObj = SdrObject::getSdrObjectFromXShape(mxShape);
+
+
+    if(pObj == nullptr )
+    {
+        return aRet;
+    }
+
+    // Compute object's group level.
+    sal_Int32 nGroupLevel = 0;
+    SdrObject * pUper = pObj->getParentSdrObjectFromSdrObject();
+    while( pUper )
+    {
+        ++nGroupLevel;
+        pUper = pUper->getParentSdrObjectFromSdrObject();
+    }
+
+    css::uno::Reference<XAccessibleContext> xParentContext = xParent->getAccessibleContext();
+    if( xParentContext->getAccessibleRole()  == AccessibleRole::DOCUMENT ||
+            xParentContext->getAccessibleRole()  == AccessibleRole::DOCUMENT_PRESENTATION ||
+            xParentContext->getAccessibleRole()  == AccessibleRole::DOCUMENT_SPREADSHEET ||
+            xParentContext->getAccessibleRole()  == AccessibleRole::DOCUMENT_TEXT )//Document
+    {
+        Reference< XAccessibleGroupPosition > xGroupPosition( xParent,uno::UNO_QUERY );
+        if ( xGroupPosition.is() )
+        {
+            aRet = xGroupPosition->getGroupPosition( uno::Any( getAccessibleContext() ) );
+        }
+        return aRet;
+    }
+    if (xParentContext->getAccessibleRole() != AccessibleRole::SHAPE)
+    {
+        return aRet;
+    }
+
+    SdrObjList *pGrpList = nullptr;
+    if( pObj->getParentSdrObjectFromSdrObject() )
+        pGrpList = pObj->getParentSdrObjectFromSdrObject()->GetSubList();
+    else
+        return aRet;
+
+    std::vector< uno::Reference<drawing::XShape> > vXShapes;
+    if (pGrpList)
+    {
+        const size_t nObj = pGrpList->GetObjCount();
+        for(size_t i = 0 ; i < nObj ; ++i)
+        {
+            SdrObject *pSubObj = pGrpList->GetObj(i);
+            if (pSubObj &&
+                xParentContext->getAccessibleChild(i)->getAccessibleContext()->getAccessibleRole() != AccessibleRole::GROUP_BOX)
+            {
+                vXShapes.push_back( GetXShapeForSdrObject(pSubObj) );
+            }
+        }
+    }
+
+    std::sort( vXShapes.begin(), vXShapes.end(), XShapePosCompareHelper() );
+
+    //get the index of the selected object in the group
+    //we start counting position from 1
+    sal_Int32 nPos = 1;
+    for ( const auto& rpShape : vXShapes )
+    {
+        if ( rpShape.get() == mxShape.get() )
+        {
+            sal_Int32* pArray = aRet.getArray();
+            pArray[0] = nGroupLevel;
+            pArray[1] = vXShapes.size();
+            pArray[2] = nPos;
+            break;
+        }
+        nPos++;
+    }
+
+    return aRet;
+}
+
+OUString AccessibleShape::getObjectLink( const uno::Any& )
+{
+    OUString aRet;
+
+    SdrObject *pObj = SdrObject::getSdrObjectFromXShape(mxShape);
+    if(pObj == nullptr )
+    {
+        return aRet;
+    }
+    if (maShapeTreeInfo.GetDocumentWindow().is())
+    {
+        Reference< XAccessibleGroupPosition > xGroupPosition( maShapeTreeInfo.GetDocumentWindow(), uno::UNO_QUERY );
+        if (xGroupPosition.is())
+        {
+            aRet = xGroupPosition->getObjectLink( uno::Any( getAccessibleContext() ) );
+        }
+    }
+    return aRet;
+}
+
+// XAccessibleHypertext
+sal_Int32 SAL_CALL AccessibleShape::getHyperLinkCount()
+{
+    // MT: Introduced with IA2 CWS, but SvxAccessibleHyperlink was redundant to svx::AccessibleHyperlink which we introduced meanwhile.
+    // Code need to be adapted...
+    return 0;
+
+    /*
+    SvxAccessibleHyperlink* pLink = new SvxAccessibleHyperlink(m_pShape,this);
+    if (pLink->IsValidHyperlink())
+        return 1;
+    else
+        return 0;
+    */
+}
+uno::Reference< XAccessibleHyperlink > SAL_CALL
+    AccessibleShape::getHyperLink( sal_Int32 )
+{
+    uno::Reference< XAccessibleHyperlink > xRet;
+    // MT: Introduced with IA2 CWS, but SvxAccessibleHyperlink was redundant to svx::AccessibleHyperlink which we introduced meanwhile.
+    // Code need to be adapted...
+    /*
+    SvxAccessibleHyperlink* pLink = new SvxAccessibleHyperlink(m_pShape,this);
+    if (pLink->IsValidHyperlink())
+        xRet = pLink;
+    if( !xRet.is() )
+        throw css::lang::IndexOutOfBoundsException();
+    */
+    return xRet;
+}
+sal_Int32 SAL_CALL AccessibleShape::getHyperLinkIndex( sal_Int32 )
+{
+    return 0;
+}
+// XAccessibleText
+sal_Int32 SAL_CALL AccessibleShape::getCaretPosition(  ){return 0;}
+sal_Bool SAL_CALL AccessibleShape::setCaretPosition( sal_Int32 ){return false;}
+sal_Unicode SAL_CALL AccessibleShape::getCharacter( sal_Int32 ){return 0;}
+css::uno::Sequence< css::beans::PropertyValue > SAL_CALL AccessibleShape::getCharacterAttributes( sal_Int32, const css::uno::Sequence< OUString >& )
+{
+    uno::Sequence< css::beans::PropertyValue > aValues(0);
+    return aValues;
+}
+css::awt::Rectangle SAL_CALL AccessibleShape::getCharacterBounds( sal_Int32 )
+{
+    return css::awt::Rectangle(0, 0, 0, 0 );
+}
+sal_Int32 SAL_CALL AccessibleShape::getCharacterCount(  ){return 0;}
+sal_Int32 SAL_CALL AccessibleShape::getIndexAtPoint( const css::awt::Point& ){return 0;}
+OUString SAL_CALL AccessibleShape::getSelectedText(  ){return OUString();}
+sal_Int32 SAL_CALL AccessibleShape::getSelectionStart(  ){return 0;}
+sal_Int32 SAL_CALL AccessibleShape::getSelectionEnd(  ){return 0;}
+sal_Bool SAL_CALL AccessibleShape::setSelection( sal_Int32, sal_Int32 ){return true;}
+OUString SAL_CALL AccessibleShape::getText(  ){return OUString();}
+OUString SAL_CALL AccessibleShape::getTextRange( sal_Int32, sal_Int32 ){return OUString();}
+css::accessibility::TextSegment SAL_CALL AccessibleShape::getTextAtIndex( sal_Int32, sal_Int16 )
+{
+    css::accessibility::TextSegment aResult;
+    return aResult;
+}
+css::accessibility::TextSegment SAL_CALL AccessibleShape::getTextBeforeIndex( sal_Int32, sal_Int16 )
+{
+    css::accessibility::TextSegment aResult;
+    return aResult;
+}
+css::accessibility::TextSegment SAL_CALL AccessibleShape::getTextBehindIndex( sal_Int32, sal_Int16 )
+{
+    css::accessibility::TextSegment aResult;
+    return aResult;
+}
+sal_Bool SAL_CALL AccessibleShape::copyText( sal_Int32, sal_Int32 ){return true;}
+sal_Bool SAL_CALL AccessibleShape::scrollSubstringTo( sal_Int32, sal_Int32, AccessibleScrollType ){return false;}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleShapeInfo.cxx b/svx/source/accessibility/AccessibleShapeInfo.cxx
new file mode 100644
index 0000000000..8904480adc
--- /dev/null
+++ b/svx/source/accessibility/AccessibleShapeInfo.cxx
@@ -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 .
+ */
+
+#include <svx/AccessibleShapeInfo.hxx>
+#include <utility>
+
+
+namespace accessibility {
+
+AccessibleShapeInfo::AccessibleShapeInfo (
+        css::uno::Reference<css::drawing::XShape> xShape,
+        css::uno::Reference<css::accessibility::XAccessible> xParent,
+        IAccessibleParent* pChildrenManager)
+    : mxShape (std::move(xShape)),
+      mxParent (std::move(xParent)),
+      mpChildrenManager (pChildrenManager)
+{
+    // empty.
+}
+
+
+AccessibleShapeInfo::AccessibleShapeInfo (
+        css::uno::Reference<css::drawing::XShape> xShape,
+        css::uno::Reference<css::accessibility::XAccessible> xParent)
+    : mxShape (std::move(xShape)),
+      mxParent (std::move(xParent)),
+      mpChildrenManager (nullptr)
+{
+    // empty.
+}
+
+AccessibleShapeInfo::AccessibleShapeInfo (const AccessibleShapeInfo &rOther)
+    : mxShape (rOther.mxShape),
+      mxParent (rOther.mxParent),
+      mpChildrenManager (rOther.mpChildrenManager)
+{
+    // empty.
+}
+
+
+AccessibleShapeInfo::~AccessibleShapeInfo()
+{
+    // empty.
+}
+
+} // end of namespace accessibility.
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleShapeTreeInfo.cxx b/svx/source/accessibility/AccessibleShapeTreeInfo.cxx
new file mode 100644
index 0000000000..70fd6e44d8
--- /dev/null
+++ b/svx/source/accessibility/AccessibleShapeTreeInfo.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 <svx/AccessibleShapeTreeInfo.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using ::com::sun::star::uno::Reference;
+
+namespace accessibility {
+
+AccessibleShapeTreeInfo::AccessibleShapeTreeInfo()
+    : mpView (nullptr),
+      mpWindow (nullptr),
+      mpViewForwarder (nullptr)
+{
+    // Empty.
+}
+
+
+AccessibleShapeTreeInfo::AccessibleShapeTreeInfo (const AccessibleShapeTreeInfo& rInfo)
+    : mxDocumentWindow (rInfo.mxDocumentWindow),
+      mxModelBroadcaster (rInfo.mxModelBroadcaster),
+      mpView (rInfo.mpView),
+      mxController (rInfo.mxController),
+      mpWindow (rInfo.mpWindow),
+      mpViewForwarder (rInfo.mpViewForwarder)
+{
+    // Empty.
+}
+
+void AccessibleShapeTreeInfo::dispose()
+{
+    mxDocumentWindow.clear();
+    mxModelBroadcaster.clear();
+    mpView = nullptr;
+    mxController.clear();
+    mpWindow.reset();
+    mpViewForwarder = nullptr;
+}
+
+AccessibleShapeTreeInfo& AccessibleShapeTreeInfo::operator= (const AccessibleShapeTreeInfo& rInfo)
+{
+    if ( this != &rInfo )
+    {
+        mxDocumentWindow = rInfo.mxDocumentWindow;
+        mxModelBroadcaster = rInfo.mxModelBroadcaster;
+        mpView = rInfo.mpView;
+        mxController = rInfo.mxController;
+        mpWindow = rInfo.mpWindow;
+        mpViewForwarder = rInfo.mpViewForwarder;
+    }
+    return *this;
+}
+
+AccessibleShapeTreeInfo::~AccessibleShapeTreeInfo()
+{
+    if (mpWindow)
+    {
+        SolarMutexGuard g;
+        mpWindow.reset();
+    }
+}
+
+void AccessibleShapeTreeInfo::SetDocumentWindow (
+    const Reference<XAccessibleComponent>& rxDocumentWindow)
+{
+    if (mxDocumentWindow != rxDocumentWindow)
+        mxDocumentWindow = rxDocumentWindow;
+}
+
+void AccessibleShapeTreeInfo::SetModelBroadcaster (
+    const Reference<document::XShapeEventBroadcaster>& rxModelBroadcaster)
+{
+    mxModelBroadcaster = rxModelBroadcaster;
+}
+
+void AccessibleShapeTreeInfo::SetSdrView (SdrView* pView)
+{
+    mpView = pView;
+}
+
+void AccessibleShapeTreeInfo::SetController (
+    const Reference<frame::XController>& rxController)
+{
+    mxController = rxController;
+}
+
+void AccessibleShapeTreeInfo::SetWindow(vcl::Window* pDevice)
+{
+    mpWindow = pDevice;
+}
+
+void AccessibleShapeTreeInfo::SetViewForwarder (const IAccessibleViewForwarder* pViewForwarder)
+{
+    mpViewForwarder = pViewForwarder;
+}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleTextEventQueue.cxx b/svx/source/accessibility/AccessibleTextEventQueue.cxx
new file mode 100644
index 0000000000..a39123c45e
--- /dev/null
+++ b/svx/source/accessibility/AccessibleTextEventQueue.cxx
@@ -0,0 +1,92 @@
+/* -*- 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 "AccessibleTextEventQueue.hxx"
+
+#include <editeng/unoedhlp.hxx>
+#include <svx/svdmodel.hxx>
+#include <svx/svdpntv.hxx>
+
+namespace accessibility
+{
+
+
+    // EventQueue implementation
+
+
+    AccessibleTextEventQueue::AccessibleTextEventQueue()
+    {
+    }
+
+    AccessibleTextEventQueue::~AccessibleTextEventQueue()
+    {
+        Clear();
+    }
+
+    void AccessibleTextEventQueue::Append( const SdrHint& rHint )
+    {
+        // only enqueue the events we actually care about in
+        // AccessibleTextHelper_Impl::ProcessQueue(), because
+        // the cost of some events adds up.
+        auto eKind = rHint.GetKind();
+        if (eKind == SdrHintKind::BeginEdit
+            || eKind == SdrHintKind::EndEdit)
+            maEventQueue.push_back( new SdrHint( rHint ) );
+    }
+
+    void AccessibleTextEventQueue::Append( const TextHint& rHint )
+    {
+        maEventQueue.push_back( new TextHint( rHint ) );
+    }
+
+    void AccessibleTextEventQueue::Append( const SvxViewChangedHint& rHint )
+    {
+        maEventQueue.push_back( new SvxViewChangedHint( rHint ) );
+    }
+
+    void AccessibleTextEventQueue::Append( const SvxEditSourceHint& rHint )
+    {
+        maEventQueue.push_back( new SvxEditSourceHint( rHint ) );
+    }
+
+    ::std::unique_ptr< SfxHint > AccessibleTextEventQueue::PopFront()
+    {
+        ::std::unique_ptr< SfxHint > aRes( *(maEventQueue.begin()) );
+        maEventQueue.pop_front();
+        return aRes;
+    }
+
+    bool AccessibleTextEventQueue::IsEmpty() const
+    {
+        return maEventQueue.empty();
+    }
+
+    void AccessibleTextEventQueue::Clear()
+    {
+        // clear queue
+        for( auto p : maEventQueue)
+            delete p;
+        maEventQueue.clear();
+    }
+
+} // end of namespace accessibility
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleTextEventQueue.hxx b/svx/source/accessibility/AccessibleTextEventQueue.hxx
new file mode 100644
index 0000000000..23dbf9faa6
--- /dev/null
+++ b/svx/source/accessibility/AccessibleTextEventQueue.hxx
@@ -0,0 +1,90 @@
+/* -*- 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_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLETEXTEVENTQUEUE_HXX
+#define INCLUDED_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLETEXTEVENTQUEUE_HXX
+
+#include <memory>
+#include <deque>
+#include <algorithm>
+
+class SfxHint;
+class SdrHint;
+class TextHint;
+class SvxViewChangedHint;
+class SvxEditSourceHint;
+
+namespace accessibility
+{
+    /** This class handles the notification events for the
+        AccessibleTextHelper class.
+
+        For various reasons, we cannot process EditEngine events as
+        they arrive, but have to queue and handle them in a batch.
+     */
+    class AccessibleTextEventQueue
+    {
+    public:
+        typedef ::std::deque< SfxHint* > EventQueue;
+
+        AccessibleTextEventQueue();
+        ~AccessibleTextEventQueue();
+
+        /// Append event to end of queue
+        void Append( const SdrHint& rHint );
+        /// Append event to end of queue
+        void Append( const TextHint& rHint );
+        /// Append event to end of queue
+        void Append( const SvxViewChangedHint& rHint );
+        /// Append event to end of queue
+        void Append( const SvxEditSourceHint& rHint );
+
+        /** Pop first queue element
+
+            return first queue element, ownership transfers to caller
+        */
+        ::std::unique_ptr< SfxHint > PopFront();
+
+        /** Apply functor to every queue member
+
+            @param rFunctor
+            Functor to apply. Functor receives queue element as
+            parameter: void func( const SfxHint* );
+        */
+        template < typename Functor > void ForEach( Functor& rFunctor ) const
+        {
+            // #109864# Make sure results are put back into rFunctor
+            rFunctor = ::std::for_each( maEventQueue.begin(), maEventQueue.end(), rFunctor );
+        }
+
+        /// Query whether queue is empty
+        bool IsEmpty() const;
+
+        /// Clear event queue
+        void Clear();
+
+    private:
+        EventQueue maEventQueue;
+    };
+
+} // end of namespace accessibility
+
+#endif // INCLUDED_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLETEXTEVENTQUEUE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/AccessibleTextHelper.cxx b/svx/source/accessibility/AccessibleTextHelper.cxx
new file mode 100644
index 0000000000..f12281793b
--- /dev/null
+++ b/svx/source/accessibility/AccessibleTextHelper.cxx
@@ -0,0 +1,1795 @@
+/* -*- 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 <cstdlib>
+#include <memory>
+#include <mutex>
+#include <utility>
+#include <algorithm>
+#include <sal/log.hxx>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/awt/Point.hpp>
+#include <com/sun/star/awt/Rectangle.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#include <com/sun/star/accessibility/XAccessibleContext.hpp>
+#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <comphelper/accessibleeventnotifier.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/textdata.hxx>
+#include <vcl/unohelp.hxx>
+
+
+// Project-local header
+
+
+#include "AccessibleTextEventQueue.hxx"
+#include <svx/AccessibleTextHelper.hxx>
+
+#include <editeng/unoedhlp.hxx>
+#include <editeng/unoedprx.hxx>
+#include <editeng/AccessibleParaManager.hxx>
+#include <editeng/AccessibleEditableTextPara.hxx>
+#include <svx/svdmodel.hxx>
+#include <svx/svdpntv.hxx>
+#include <cell.hxx>
+#include "../table/accessiblecell.hxx"
+#include <editeng/editdata.hxx>
+#include <tools/debug.hxx>
+#include <comphelper/diagnose_ex.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+namespace accessibility
+{
+
+// AccessibleTextHelper_Impl declaration
+
+    template < typename first_type, typename second_type >
+        static ::std::pair< first_type, second_type > makeSortedPair( first_type   first,
+                                                                                 second_type    second  )
+    {
+        if( first > second )
+            return ::std::make_pair( second, first );
+        else
+            return ::std::make_pair( first, second );
+    }
+
+    class AccessibleTextHelper_Impl : public SfxListener
+    {
+    public:
+        typedef ::std::vector< sal_Int16 > VectorOfStates;
+
+        // receive pointer to our frontend class and view window
+        AccessibleTextHelper_Impl();
+        virtual ~AccessibleTextHelper_Impl() override;
+
+        // XAccessibleContext child handling methods
+        sal_Int64 getAccessibleChildCount() const;
+        uno::Reference< XAccessible > getAccessibleChild( sal_Int64 i );
+
+        // XAccessibleEventBroadcaster child related methods
+        void addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener );
+        void removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener );
+
+        // XAccessibleComponent child related methods
+        uno::Reference< XAccessible > getAccessibleAtPoint( const awt::Point& aPoint );
+
+        SvxEditSourceAdapter& GetEditSource() const;
+
+        void SetEditSource( ::std::unique_ptr< SvxEditSource > && pEditSource );
+
+        void SetEventSource( const uno::Reference< XAccessible >& rInterface )
+        {
+            mxFrontEnd = rInterface;
+        }
+
+        void SetOffset( const Point& );
+        Point GetOffset() const
+        {
+            std::scoped_lock aGuard( maMutex ); Point aPoint( maOffset );
+            return aPoint;
+        }
+
+        void SetStartIndex( sal_Int32 nOffset );
+        sal_Int32 GetStartIndex() const
+        {
+            // Strictly correct only with locked solar mutex, // but
+            // here we rely on the fact that sal_Int32 access is
+            // atomic
+            return mnStartIndex;
+        }
+
+        void SetAdditionalChildStates( sal_Int64 nChildStates );
+
+        void Dispose();
+
+        // do NOT hold object mutex when calling this! Danger of deadlock
+        void FireEvent( const sal_Int16 nEventId, const uno::Any& rNewValue = uno::Any(), const uno::Any& rOldValue = uno::Any() ) const;
+        void FireEvent( const AccessibleEventObject& rEvent ) const;
+
+        void SetFocus( bool bHaveFocus );
+        bool HaveFocus() const
+        {
+            // No locking of solar mutex here, since we rely on the fact
+            // that sal_Bool access is atomic
+            return mbThisHasFocus;
+        }
+        void SetChildFocus( sal_Int32 nChild, bool bHaveFocus );
+        void SetShapeFocus( bool bHaveFocus );
+        void ChangeChildFocus( sal_Int32 nNewChild );
+
+#ifdef DBG_UTIL
+        void CheckInvariants() const;
+#endif
+
+        // checks all children for visibility, throws away invisible ones
+        void UpdateVisibleChildren( bool bBroadcastEvents=true );
+
+        // check all children for changes in position and size
+        void UpdateBoundRect();
+
+        // calls SetSelection on the forwarder and updates maLastSelection
+        // cache.
+        void UpdateSelection();
+
+    private:
+
+        // Process event queue
+        void ProcessQueue();
+
+        // syntactic sugar for FireEvent
+        void GotPropertyEvent( const uno::Any& rNewValue, const sal_Int16 nEventId ) const { FireEvent( nEventId, rNewValue ); }
+
+        // shutdown usage of current edit source on myself and the children.
+        void ShutdownEditSource();
+
+        void ParagraphsMoved( sal_Int32 nFirst, sal_Int32 nMiddle, sal_Int32 nLast );
+
+        virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+
+        comphelper::AccessibleEventNotifier::TClientId getNotifierClientId() const { return mnNotifierClientId; }
+
+        // lock solar mutex before
+        SvxTextForwarder& GetTextForwarder() const;
+        // lock solar mutex before
+        SvxViewForwarder& GetViewForwarder() const;
+        // lock solar mutex before
+        SvxEditViewForwarder& GetEditViewForwarder() const;
+
+        // are we in edit mode?
+        bool IsActive() const;
+
+        // our frontend class (the one implementing the actual
+        // interface). That's not necessarily the one containing the impl
+        // pointer!
+        uno::Reference< XAccessible > mxFrontEnd;
+
+        // a wrapper for the text forwarders (guarded by solar mutex)
+        mutable SvxEditSourceAdapter maEditSource;
+
+        // store last selection (to correctly report selection changes, guarded by solar mutex)
+        ESelection maLastSelection;
+
+        // cache range of visible children (guarded by solar mutex)
+        sal_Int32 mnFirstVisibleChild;
+        sal_Int32 mnLastVisibleChild;
+
+        // offset to add to all our children (unguarded, relying on
+        // the fact that sal_Int32 access is atomic)
+        sal_Int32 mnStartIndex;
+
+        // the object handling our children (guarded by solar mutex)
+        ::accessibility::AccessibleParaManager maParaManager;
+
+        // Queued events from Notify() (guarded by solar mutex)
+        AccessibleTextEventQueue maEventQueue;
+
+        // spin lock to prevent notify in notify (guarded by solar mutex)
+        bool mbInNotify;
+
+        // whether the object or its children has the focus set (guarded by solar mutex)
+        bool mbGroupHasFocus;
+
+        // whether we (this object) has the focus set (guarded by solar mutex)
+        bool mbThisHasFocus;
+
+        mutable std::mutex maMutex;
+
+        /// our current offset to the containing shape/cell (guarded by maMutex)
+        Point maOffset;
+
+        /// client Id from AccessibleEventNotifier
+        comphelper::AccessibleEventNotifier::TClientId mnNotifierClientId;
+        static constexpr comphelper::AccessibleEventNotifier::TClientId snNotifierClientRevoked
+            = std::numeric_limits<comphelper::AccessibleEventNotifier::TClientId>::max();
+    };
+
+    AccessibleTextHelper_Impl::AccessibleTextHelper_Impl() :
+        maLastSelection( EE_PARA_NOT_FOUND,EE_INDEX_NOT_FOUND,EE_PARA_NOT_FOUND,EE_INDEX_NOT_FOUND ),
+        mnFirstVisibleChild( -1 ),
+        mnLastVisibleChild( -2 ),
+        mnStartIndex( 0 ),
+        mbInNotify( false ),
+        mbGroupHasFocus( false ),
+        mbThisHasFocus( false ),
+        maOffset(0,0),
+        // well, that's strictly exception safe, though not really
+        // robust. We rely on the fact that this member is constructed
+        // last, and that the constructor body is empty, thus no
+        // chance for exceptions once the Id is fetched. Nevertheless,
+        // normally should employ RAII here...
+        mnNotifierClientId(::comphelper::AccessibleEventNotifier::registerClient())
+    {
+        SAL_INFO("svx", "received ID: " << mnNotifierClientId );
+    }
+
+    AccessibleTextHelper_Impl::~AccessibleTextHelper_Impl()
+    {
+        SolarMutexGuard aGuard;
+
+        try
+        {
+            // call Dispose here, too, since we've some resources not
+            // automatically freed otherwise
+            Dispose();
+        }
+        catch( const uno::Exception& ) {}
+    }
+
+    SvxTextForwarder& AccessibleTextHelper_Impl::GetTextForwarder() const
+    {
+        if( !maEditSource.IsValid() )
+            throw uno::RuntimeException("Unknown edit source", mxFrontEnd);
+
+        SvxTextForwarder* pTextForwarder = maEditSource.GetTextForwarder();
+
+        if( !pTextForwarder )
+            throw uno::RuntimeException("Unable to fetch text forwarder, model might be dead", mxFrontEnd);
+
+        if( !pTextForwarder->IsValid() )
+            throw uno::RuntimeException("Text forwarder is invalid, model might be dead", mxFrontEnd);
+
+        return *pTextForwarder;
+    }
+
+    SvxViewForwarder& AccessibleTextHelper_Impl::GetViewForwarder() const
+    {
+        if( !maEditSource.IsValid() )
+            throw uno::RuntimeException("Unknown edit source", mxFrontEnd);
+
+        SvxViewForwarder* pViewForwarder = maEditSource.GetViewForwarder();
+
+        if( !pViewForwarder )
+            throw uno::RuntimeException("Unable to fetch view forwarder, model might be dead", mxFrontEnd);
+
+        if( !pViewForwarder->IsValid() )
+            throw uno::RuntimeException("View forwarder is invalid, model might be dead", mxFrontEnd);
+
+        return *pViewForwarder;
+    }
+
+    SvxEditViewForwarder& AccessibleTextHelper_Impl::GetEditViewForwarder() const
+    {
+        if( !maEditSource.IsValid() )
+            throw uno::RuntimeException("Unknown edit source", mxFrontEnd);
+
+        SvxEditViewForwarder* pViewForwarder = maEditSource.GetEditViewForwarder();
+
+        if( !pViewForwarder )
+        {
+            throw uno::RuntimeException("No edit view forwarder, object not in edit mode", mxFrontEnd);
+        }
+
+        if( !pViewForwarder->IsValid() )
+        {
+            throw uno::RuntimeException("View forwarder is invalid, object not in edit mode", mxFrontEnd);
+        }
+
+        return *pViewForwarder;
+    }
+
+    SvxEditSourceAdapter& AccessibleTextHelper_Impl::GetEditSource() const
+    {
+        if( !maEditSource.IsValid() )
+            throw uno::RuntimeException("AccessibleTextHelper_Impl::GetEditSource: no edit source", mxFrontEnd );
+        return maEditSource;
+    }
+
+    namespace {
+
+    // functor for sending child events (no stand-alone function, they are maybe not inlined)
+    class AccessibleTextHelper_OffsetChildIndex
+    {
+    public:
+        explicit AccessibleTextHelper_OffsetChildIndex( sal_Int32 nDifference ) : mnDifference(nDifference) {}
+        void operator()( ::accessibility::AccessibleEditableTextPara& rPara )
+        {
+            rPara.SetIndexInParent( rPara.GetIndexInParent() + mnDifference );
+        }
+
+    private:
+        const sal_Int32 mnDifference;
+    };
+
+    }
+
+    void AccessibleTextHelper_Impl::SetStartIndex( sal_Int32 nOffset )
+    {
+        sal_Int32 nOldOffset( mnStartIndex );
+
+        mnStartIndex = nOffset;
+
+        if( nOldOffset != nOffset )
+        {
+            // update children
+            AccessibleTextHelper_OffsetChildIndex aFunctor( nOffset - nOldOffset );
+
+            ::std::for_each( maParaManager.begin(), maParaManager.end(),
+                             AccessibleParaManager::WeakChildAdapter< AccessibleTextHelper_OffsetChildIndex > (aFunctor) );
+        }
+    }
+
+    void AccessibleTextHelper_Impl::SetAdditionalChildStates( sal_Int64 nChildStates )
+    {
+        maParaManager.SetAdditionalChildStates( nChildStates );
+    }
+
+    void AccessibleTextHelper_Impl::SetChildFocus( sal_Int32 nChild, bool bHaveFocus )
+    {
+        if( bHaveFocus )
+        {
+            if( mbThisHasFocus )
+                SetShapeFocus( false );
+
+            maParaManager.SetFocus( nChild );
+
+            // we just received the focus, also send caret event then
+            UpdateSelection();
+
+            SAL_INFO("svx", "Paragraph " << nChild << " received focus");
+        }
+        else
+        {
+            maParaManager.SetFocus( -1 );
+
+            SAL_INFO("svx", "Paragraph " << nChild << " lost focus");
+
+            if( mbGroupHasFocus )
+                SetShapeFocus( true );
+        }
+    }
+
+    void AccessibleTextHelper_Impl::ChangeChildFocus( sal_Int32 nNewChild )
+    {
+        if( mbThisHasFocus )
+            SetShapeFocus( false );
+
+        mbGroupHasFocus = true;
+        maParaManager.SetFocus( nNewChild );
+
+        SAL_INFO("svx", "Paragraph " << nNewChild << " received focus");
+    }
+
+    void AccessibleTextHelper_Impl::SetShapeFocus( bool bHaveFocus )
+    {
+        bool bOldFocus( mbThisHasFocus );
+
+        mbThisHasFocus = bHaveFocus;
+
+        if( bOldFocus == bHaveFocus )
+            return;
+
+        if( bHaveFocus )
+        {
+            if( mxFrontEnd.is() )
+            {
+                AccessibleCell* pAccessibleCell = dynamic_cast< AccessibleCell* > ( mxFrontEnd.get() );
+                if ( !pAccessibleCell )
+                    GotPropertyEvent( uno::Any(AccessibleStateType::FOCUSED), AccessibleEventId::STATE_CHANGED );
+                else    // the focus event on cell should be fired on table directly
+                {
+                    AccessibleTableShape* pAccTable = pAccessibleCell->GetParentTable();
+                    if (pAccTable)
+                        pAccTable->SetStateDirectly(AccessibleStateType::FOCUSED);
+                }
+            }
+            SAL_INFO("svx", "Parent object received focus" );
+        }
+        else
+        {
+            // The focus state should be reset directly on table.
+            //LostPropertyEvent( uno::makeAny(AccessibleStateType::FOCUSED), AccessibleEventId::STATE_CHANGED );
+            if( mxFrontEnd.is() )
+            {
+                AccessibleCell* pAccessibleCell = dynamic_cast< AccessibleCell* > ( mxFrontEnd.get() );
+                if ( !pAccessibleCell )
+                    FireEvent( AccessibleEventId::STATE_CHANGED, uno::Any(), uno::Any(AccessibleStateType::FOCUSED) );
+                else
+                {
+                    AccessibleTableShape* pAccTable = pAccessibleCell->GetParentTable();
+                    if (pAccTable)
+                        pAccTable->ResetStateDirectly(AccessibleStateType::FOCUSED);
+                }
+            }
+            SAL_INFO("svx", "Parent object lost focus" );
+        }
+    }
+
+    void AccessibleTextHelper_Impl::SetFocus( bool bHaveFocus )
+    {
+        bool bOldFocus( mbGroupHasFocus );
+
+        mbGroupHasFocus = bHaveFocus;
+
+        if( IsActive() )
+        {
+            try
+            {
+                // find the one with the cursor and get/set focus accordingly
+                ESelection aSelection;
+                if( GetEditViewForwarder().GetSelection( aSelection ) )
+                    SetChildFocus( aSelection.nEndPara, bHaveFocus );
+            }
+            catch( const uno::Exception& ) {}
+        }
+        else if( bOldFocus != bHaveFocus )
+        {
+            SetShapeFocus( bHaveFocus );
+        }
+
+        SAL_INFO("svx", "focus changed, Object " << this << ", state: " << (bHaveFocus ? "focused" : "not focused") );
+    }
+
+    bool AccessibleTextHelper_Impl::IsActive() const
+    {
+        try
+        {
+            SvxEditSource& rEditSource = GetEditSource();
+            SvxEditViewForwarder* pViewForwarder = rEditSource.GetEditViewForwarder();
+
+            if( !pViewForwarder )
+                return false;
+
+            if( mxFrontEnd.is() )
+            {
+                AccessibleCell* pAccessibleCell = dynamic_cast< AccessibleCell* > ( mxFrontEnd.get() );
+                if ( pAccessibleCell )
+                {
+                    sdr::table::CellRef xCell = pAccessibleCell->getCellRef();
+                    if ( xCell.is() )
+                        return xCell->IsActiveCell();
+                }
+            }
+            return pViewForwarder->IsValid();
+        }
+        catch( const uno::RuntimeException& )
+        {
+            return false;
+        }
+    }
+
+    void AccessibleTextHelper_Impl::UpdateSelection()
+    {
+        try
+        {
+            ESelection aSelection;
+            if( GetEditViewForwarder().GetSelection( aSelection ) )
+            {
+                if( maLastSelection != aSelection &&
+                    aSelection.nEndPara < maParaManager.GetNum() )
+                {
+                    // #103998# Not that important, changed from assertion to trace
+                    if( mbThisHasFocus )
+                    {
+                        SAL_INFO("svx", "Parent has focus!");
+                    }
+
+                    sal_Int32 nMaxValidParaIndex( GetTextForwarder().GetParagraphCount() - 1 );
+
+                    // notify all affected paragraphs (TODO: may be suboptimal,
+                    // since some paragraphs might stay selected)
+                    if( maLastSelection.nStartPara != EE_PARA_NOT_FOUND )
+                    {
+                        // Did the caret move from one paragraph to another?
+                        // #100530# no caret events if not focused.
+                        if( mbGroupHasFocus &&
+                            maLastSelection.nEndPara != aSelection.nEndPara )
+                        {
+                            if( maLastSelection.nEndPara < maParaManager.GetNum() )
+                            {
+                                maParaManager.FireEvent( ::std::min( maLastSelection.nEndPara, nMaxValidParaIndex ),
+                                                         ::std::min( maLastSelection.nEndPara, nMaxValidParaIndex )+1,
+                                                         AccessibleEventId::CARET_CHANGED,
+                                                         uno::Any(static_cast<sal_Int32>(-1)),
+                                                         uno::Any(maLastSelection.nEndPos) );
+                            }
+
+                            ChangeChildFocus( aSelection.nEndPara );
+
+                            SAL_INFO(
+                                "svx",
+                                "focus changed, Object: " << this
+                                    << ", Paragraph: " << aSelection.nEndPara
+                                    << ", Last paragraph: "
+                                    << maLastSelection.nEndPara);
+                        }
+                    }
+
+                    // #100530# no caret events if not focused.
+                    if( mbGroupHasFocus )
+                    {
+                        uno::Any aOldCursor;
+
+                        // #i13705# The old cursor can only contain valid
+                        // values if it's the same paragraph!
+                        if( maLastSelection.nStartPara != EE_PARA_NOT_FOUND &&
+                            maLastSelection.nEndPara == aSelection.nEndPara )
+                        {
+                            aOldCursor <<= maLastSelection.nEndPos;
+                        }
+                        else
+                        {
+                            aOldCursor <<= static_cast<sal_Int32>(-1);
+                        }
+
+                        maParaManager.FireEvent( aSelection.nEndPara,
+                                                 aSelection.nEndPara+1,
+                                                 AccessibleEventId::CARET_CHANGED,
+                                                 uno::Any(aSelection.nEndPos),
+                                                 aOldCursor );
+                    }
+
+                    SAL_INFO(
+                        "svx",
+                        "caret changed, Object: " << this << ", New pos: "
+                            << aSelection.nEndPos << ", Old pos: "
+                            << maLastSelection.nEndPos << ", New para: "
+                            << aSelection.nEndPara << ", Old para: "
+                            << maLastSelection.nEndPara);
+
+                    // #108947# Sort new range before calling FireEvent
+                    ::std::pair<sal_Int32, sal_Int32> sortedSelection(
+                        makeSortedPair(::std::min( aSelection.nStartPara, nMaxValidParaIndex ),
+                                       ::std::min( aSelection.nEndPara, nMaxValidParaIndex ) ) );
+
+                    // #108947# Sort last range before calling FireEvent
+                    ::std::pair<sal_Int32, sal_Int32> sortedLastSelection(
+                        makeSortedPair(::std::min( maLastSelection.nStartPara, nMaxValidParaIndex ),
+                                       ::std::min( maLastSelection.nEndPara, nMaxValidParaIndex ) ) );
+
+                    // event TEXT_SELECTION_CHANGED has to be submitted. (#i27299#)
+                    const sal_Int16 nTextSelChgEventId =
+                                    AccessibleEventId::TEXT_SELECTION_CHANGED;
+                    // #107037# notify selection change
+                    if( maLastSelection.nStartPara == EE_PARA_NOT_FOUND )
+                    {
+                        // last selection is undefined
+                        // use method <ESelection::HasRange()> (#i27299#)
+                        if ( aSelection.HasRange() )
+                        {
+                            // selection was undefined, now is on
+                            maParaManager.FireEvent( sortedSelection.first,
+                                                     sortedSelection.second+1,
+                                                     nTextSelChgEventId );
+                        }
+                    }
+                    else
+                    {
+                        // last selection is valid
+                        // use method <ESelection::HasRange()> (#i27299#)
+                        if ( maLastSelection.HasRange() &&
+                             !aSelection.HasRange() )
+                        {
+                            // selection was on, now is empty
+                            maParaManager.FireEvent( sortedLastSelection.first,
+                                                     sortedLastSelection.second+1,
+                                                     nTextSelChgEventId );
+                        }
+                        // use method <ESelection::HasRange()> (#i27299#)
+                        else if( !maLastSelection.HasRange() &&
+                                 aSelection.HasRange() )
+                        {
+                            // selection was empty, now is on
+                            maParaManager.FireEvent( sortedSelection.first,
+                                                     sortedSelection.second+1,
+                                                     nTextSelChgEventId );
+                        }
+                        // no event TEXT_SELECTION_CHANGED event, if new and
+                        // last selection are empty. (#i27299#)
+                        else if ( maLastSelection.HasRange() &&
+                                  aSelection.HasRange() )
+                        {
+                            // use sorted last and new selection
+                            ESelection aTmpLastSel( maLastSelection );
+                            aTmpLastSel.Adjust();
+                            ESelection aTmpSel( aSelection );
+                            aTmpSel.Adjust();
+                            // first submit event for new and changed selection
+                            sal_Int32 nPara = aTmpSel.nStartPara;
+                            for ( ; nPara <= aTmpSel.nEndPara; ++nPara )
+                            {
+                                if ( nPara < aTmpLastSel.nStartPara ||
+                                     nPara > aTmpLastSel.nEndPara )
+                                {
+                                    // new selection on paragraph <nPara>
+                                    maParaManager.FireEvent( nPara,
+                                                             nTextSelChgEventId );
+                                }
+                                else
+                                {
+                                    // check for changed selection on paragraph <nPara>
+                                    const sal_Int32 nParaStartPos =
+                                            nPara == aTmpSel.nStartPara
+                                            ? aTmpSel.nStartPos : 0;
+                                    const sal_Int32 nParaEndPos =
+                                            nPara == aTmpSel.nEndPara
+                                            ? aTmpSel.nEndPos : -1;
+                                    const sal_Int32 nLastParaStartPos =
+                                            nPara == aTmpLastSel.nStartPara
+                                            ? aTmpLastSel.nStartPos : 0;
+                                    const sal_Int32 nLastParaEndPos =
+                                            nPara == aTmpLastSel.nEndPara
+                                            ? aTmpLastSel.nEndPos : -1;
+                                    if ( nParaStartPos != nLastParaStartPos ||
+                                         nParaEndPos != nLastParaEndPos )
+                                    {
+                                        maParaManager.FireEvent(
+                                                    nPara, nTextSelChgEventId );
+                                    }
+                                }
+                            }
+                            // second submit event for 'old' selections
+                            nPara = aTmpLastSel.nStartPara;
+                            for ( ; nPara <= aTmpLastSel.nEndPara; ++nPara )
+                            {
+                                if ( nPara < aTmpSel.nStartPara ||
+                                     nPara > aTmpSel.nEndPara )
+                                {
+                                    maParaManager.FireEvent( nPara,
+                                                             nTextSelChgEventId );
+                                }
+                            }
+                        }
+                    }
+
+                    maLastSelection = aSelection;
+                }
+            }
+        }
+        // no selection? no update actions
+        catch( const uno::RuntimeException& ) {}
+    }
+
+    void AccessibleTextHelper_Impl::ShutdownEditSource()
+    {
+        // This should only be called with solar mutex locked, i.e. from the main office thread
+
+        // This here is somewhat clumsy: As soon as our children have
+        // a NULL EditSource (maParaManager.SetEditSource()), they
+        // enter the disposed state and cannot be reanimated. Thus, it
+        // is unavoidable and a hard requirement to let go and create
+        // from scratch each and every child.
+
+        // invalidate children
+        maParaManager.Dispose();
+        maParaManager.SetNum(0);
+
+        // lost all children
+        if( mxFrontEnd.is() )
+            FireEvent(AccessibleEventId::INVALIDATE_ALL_CHILDREN);
+
+        // quit listen on stale edit source
+        if( maEditSource.IsValid() )
+            EndListening( maEditSource.GetBroadcaster() );
+
+        maEditSource.SetEditSource( ::std::unique_ptr< SvxEditSource >() );
+    }
+
+    void AccessibleTextHelper_Impl::SetEditSource( ::std::unique_ptr< SvxEditSource > && pEditSource )
+    {
+        // This should only be called with solar mutex locked, i.e. from the main office thread
+
+        // shutdown old edit source
+        ShutdownEditSource();
+
+        // set new edit source
+        maEditSource.SetEditSource( std::move(pEditSource) );
+
+        // init child vector to the current child count
+        if( maEditSource.IsValid() )
+        {
+            maParaManager.SetNum( GetTextForwarder().GetParagraphCount() );
+
+            // listen on new edit source
+            StartListening( maEditSource.GetBroadcaster() );
+
+            UpdateVisibleChildren();
+        }
+    }
+
+    void AccessibleTextHelper_Impl::SetOffset( const Point& rPoint )
+    {
+        // guard against non-atomic access to maOffset data structure
+        {
+            std::scoped_lock aGuard( maMutex );
+            maOffset = rPoint;
+        }
+
+        maParaManager.SetEEOffset( rPoint );
+
+        // in all cases, check visibility afterwards.
+        UpdateVisibleChildren();
+        UpdateBoundRect();
+    }
+
+    void AccessibleTextHelper_Impl::UpdateVisibleChildren( bool bBroadcastEvents )
+    {
+        try
+        {
+            SvxTextForwarder& rCacheTF = GetTextForwarder();
+            sal_Int32 nParas=rCacheTF.GetParagraphCount();
+
+            // GetTextForwarder might have replaced everything, update
+            // paragraph count in case it's outdated
+            maParaManager.SetNum( nParas );
+
+            mnFirstVisibleChild = -1;
+            mnLastVisibleChild = -2;
+
+            for( sal_Int32 nCurrPara=0; nCurrPara<nParas; ++nCurrPara )
+            {
+                if (nCurrPara == 0)
+                    mnFirstVisibleChild = nCurrPara;
+                mnLastVisibleChild = nCurrPara;
+                if (mxFrontEnd.is() && bBroadcastEvents)
+                {
+                    // child not yet created?
+                    if (!maParaManager.HasCreatedChild(nCurrPara))
+                    {
+                        GotPropertyEvent( uno::Any( maParaManager.CreateChild( nCurrPara - mnFirstVisibleChild,
+                                                                                   mxFrontEnd, GetEditSource(), nCurrPara ).first ),
+                                          AccessibleEventId::CHILD );
+                    }
+                }
+            }
+        }
+        catch( const uno::Exception& )
+        {
+            OSL_FAIL("AccessibleTextHelper_Impl::UpdateVisibleChildren error while determining visible children");
+
+            // something failed - currently no children
+            mnFirstVisibleChild = -1;
+            mnLastVisibleChild = -2;
+            maParaManager.SetNum(0);
+
+            // lost all children
+            if( bBroadcastEvents )
+                FireEvent(AccessibleEventId::INVALIDATE_ALL_CHILDREN);
+        }
+    }
+
+    void AccessibleTextHelper_Impl::UpdateBoundRect()
+    {
+        // send BOUNDRECT_CHANGED to affected children
+        for(auto it = maParaManager.begin(); it != maParaManager.end(); ++it)
+        {
+            ::accessibility::AccessibleParaManager::WeakChild& rChild = *it;
+            // retrieve hard reference from weak one
+            auto aHardRef( rChild.first.get() );
+
+            if( aHardRef.is() )
+            {
+                awt::Rectangle          aNewRect = aHardRef->getBounds();
+                const awt::Rectangle&   aOldRect = rChild.second;
+
+                if( aNewRect.X != aOldRect.X ||
+                    aNewRect.Y != aOldRect.Y ||
+                    aNewRect.Width != aOldRect.Width ||
+                    aNewRect.Height != aOldRect.Height )
+                {
+                    // visible data changed
+                    aHardRef->FireEvent( AccessibleEventId::BOUNDRECT_CHANGED );
+
+                    // update internal bounds
+                    rChild = ::accessibility::AccessibleParaManager::WeakChild( rChild.first, aNewRect );
+                }
+            }
+        }
+    }
+
+#ifdef DBG_UTIL
+    void AccessibleTextHelper_Impl::CheckInvariants() const
+    {
+        if( mnFirstVisibleChild >= 0 &&
+            mnFirstVisibleChild > mnLastVisibleChild )
+        {
+            OSL_FAIL( "AccessibleTextHelper: range invalid" );
+        }
+    }
+#endif
+
+    namespace {
+
+    // functor for sending child events (no stand-alone function, they are maybe not inlined)
+    class AccessibleTextHelper_LostChildEvent
+    {
+    public:
+        explicit AccessibleTextHelper_LostChildEvent( AccessibleTextHelper_Impl& rImpl ) : mrImpl(rImpl) {}
+        void operator()( const ::accessibility::AccessibleParaManager::WeakChild& rPara )
+        {
+            // retrieve hard reference from weak one
+            auto aHardRef( rPara.first.get() );
+
+            if( aHardRef.is() )
+                mrImpl.FireEvent(AccessibleEventId::CHILD, uno::Any(), uno::Any(css::uno::Reference<css::accessibility::XAccessible>(aHardRef)) );
+        }
+
+    private:
+        AccessibleTextHelper_Impl&  mrImpl;
+    };
+
+    }
+
+    void AccessibleTextHelper_Impl::ParagraphsMoved( sal_Int32 nFirst, sal_Int32 nMiddle, sal_Int32 nLast )
+    {
+        const sal_Int32 nParas = GetTextForwarder().GetParagraphCount();
+
+        /* rotate paragraphs
+         * =================
+         *
+         * Three cases:
+         *
+         * 1.
+         *   ... nParagraph ... nParam1 ... nParam2 ...
+         *       |______________[xxxxxxxxxxx]
+         *              becomes
+         *       [xxxxxxxxxxx]|______________
+         *
+         * tail is 0
+         *
+         * 2.
+         *   ... nParam1 ... nParagraph ... nParam2 ...
+         *       [xxxxxxxxxxx|xxxxxxxxxxxxxx]____________
+         *              becomes
+         *       ____________[xxxxxxxxxxx|xxxxxxxxxxxxxx]
+         *
+         * tail is nParagraph - nParam1
+         *
+         * 3.
+         *   ... nParam1 ... nParam2 ... nParagraph ...
+         *       [xxxxxxxxxxx]___________|____________
+         *              becomes
+         *       ___________|____________[xxxxxxxxxxx]
+         *
+         * tail is nParam2 - nParam1
+         */
+
+        // sort nParagraph, nParam1 and nParam2 in ascending order, calc range
+        if( nMiddle < nFirst )
+        {
+            ::std::swap(nFirst, nMiddle);
+        }
+        else if( nMiddle < nLast )
+        {
+            nLast = nLast + nMiddle - nFirst;
+        }
+        else
+        {
+            ::std::swap(nMiddle, nLast);
+            nLast = nLast + nMiddle - nFirst;
+        }
+
+        if( !(nFirst < nParas && nMiddle < nParas && nLast < nParas) )
+            return;
+
+        // since we have no "paragraph index
+        // changed" event on UAA, remove
+        // [first,last] and insert again later (in
+        // UpdateVisibleChildren)
+
+        // maParaManager.Rotate( nFirst, nMiddle, nLast );
+
+        // send CHILD_EVENT to affected children
+        ::accessibility::AccessibleParaManager::VectorOfChildren::const_iterator begin = maParaManager.begin();
+        ::accessibility::AccessibleParaManager::VectorOfChildren::const_iterator end = begin;
+
+        ::std::advance( begin, nFirst );
+        ::std::advance( end, nLast+1 );
+
+        // TODO: maybe optimize here in the following way.  If the
+        // number of removed children exceeds a certain threshold,
+        // use InvalidateFlags::Children
+        AccessibleTextHelper_LostChildEvent aFunctor( *this );
+
+        ::std::for_each( begin, end, aFunctor );
+
+        maParaManager.Release(nFirst, nLast+1);
+        // should be no need for UpdateBoundRect, since all affected children are cleared.
+    }
+
+    namespace {
+
+    // functor for sending child events (no stand-alone function, they are maybe not inlined)
+    class AccessibleTextHelper_ChildrenTextChanged
+    {
+    public:
+        void operator()( ::accessibility::AccessibleEditableTextPara& rPara )
+        {
+            rPara.TextChanged();
+        }
+    };
+
+    /** functor processing queue events
+
+        Reacts on SfxHintId::TextParaInserted/REMOVED events and stores
+        their content
+     */
+    class AccessibleTextHelper_QueueFunctor
+    {
+    public:
+        AccessibleTextHelper_QueueFunctor() :
+            mnParasChanged( 0 ),
+            mnParaIndex(-1),
+            mnHintId(SfxHintId::NONE)
+        {}
+        void operator()( const SfxHint* pEvent )
+        {
+            if( !pEvent || mnParasChanged == -1 )
+                return;
+
+            // determine hint type
+            const TextHint* pTextHint = dynamic_cast<const TextHint*>( pEvent );
+            const SvxEditSourceHint* pEditSourceHint = dynamic_cast<const SvxEditSourceHint*>( pEvent );
+
+            if( !(!pEditSourceHint && pTextHint &&
+                (pTextHint->GetId() == SfxHintId::TextParaInserted ||
+                 pTextHint->GetId() == SfxHintId::TextParaRemoved )) )
+                return;
+
+            if( pTextHint->GetValue() == EE_PARA_ALL )
+            {
+                mnParasChanged = -1;
+            }
+            else
+            {
+                mnHintId = pTextHint->GetId();
+                mnParaIndex = pTextHint->GetValue();
+                ++mnParasChanged;
+            }
+        }
+
+        /** Query number of paragraphs changed during queue processing.
+
+            @return number of changed paragraphs, -1 for
+            "every paragraph changed"
+        */
+        sal_Int32 GetNumberOfParasChanged() const { return mnParasChanged; }
+        /** Query index of last added/removed paragraph
+
+            @return index of lastly added paragraphs, -1 for none
+            added so far.
+        */
+        sal_Int32 GetParaIndex() const { return mnParaIndex; }
+        /** Query hint id of last interesting event
+
+            @return hint id of last interesting event (REMOVED/INSERTED).
+        */
+        SfxHintId GetHintId() const { return mnHintId; }
+
+    private:
+        /** number of paragraphs changed during queue processing. -1 for
+            "every paragraph changed"
+        */
+        sal_Int32 mnParasChanged;
+        /// index of paragraph added/removed last
+        sal_Int32 mnParaIndex;
+        /// TextHint ID (removed/inserted) of last interesting event
+        SfxHintId mnHintId;
+    };
+
+    }
+
+    void AccessibleTextHelper_Impl::ProcessQueue()
+    {
+        // inspect queue for paragraph insert/remove events. If there
+        // is exactly _one_ of those in the queue, and the number of
+        // paragraphs has changed by exactly one, use that event to
+        // determine a priori which paragraph was added/removed. This
+        // is necessary, since I must sync right here with the
+        // EditEngine state (number of paragraphs etc.), since I'm
+        // potentially sending listener events right away.
+        AccessibleTextHelper_QueueFunctor aFunctor;
+        maEventQueue.ForEach( aFunctor );
+
+        const sal_Int32 nNewParas( GetTextForwarder().GetParagraphCount() );
+        const sal_Int32 nCurrParas( maParaManager.GetNum() );
+
+        // whether every paragraph already is updated (no need to
+        // repeat that later on, e.g. for PARA_MOVED events)
+        bool            bEverythingUpdated( false );
+
+        if( std::abs( nNewParas - nCurrParas ) == 1 &&
+            aFunctor.GetNumberOfParasChanged() == 1 )
+        {
+            // #103483# Exactly one paragraph added/removed. This is
+            // the normal case, optimize event handling here.
+
+            if( aFunctor.GetHintId() == SfxHintId::TextParaInserted )
+            {
+                // update num of paras
+                maParaManager.SetNum( nNewParas );
+
+                // release everything from the insertion position until the end
+                maParaManager.Release(aFunctor.GetParaIndex(), nCurrParas);
+
+                // TODO: Clarify whether this behaviour _really_ saves
+                // anybody anything!
+                // update children, _don't_ broadcast
+                UpdateVisibleChildren( false );
+                UpdateBoundRect();
+
+                // send insert event
+                // #109864# Enforce creation of this paragraph
+                try
+                {
+                    GotPropertyEvent( uno::Any( getAccessibleChild( aFunctor.GetParaIndex() -
+                                                                        mnFirstVisibleChild + GetStartIndex() ) ),
+                                      AccessibleEventId::CHILD );
+                }
+                catch( const uno::Exception& )
+                {
+                    OSL_FAIL("AccessibleTextHelper_Impl::ProcessQueue: could not create new paragraph");
+                }
+            }
+            else if( aFunctor.GetHintId() == SfxHintId::TextParaRemoved )
+            {
+                ::accessibility::AccessibleParaManager::VectorOfChildren::const_iterator begin = maParaManager.begin();
+                ::std::advance( begin, aFunctor.GetParaIndex() );
+                ::accessibility::AccessibleParaManager::VectorOfChildren::const_iterator end = begin;
+                ::std::advance( end, 1 );
+
+                // #i61812# remember para to be removed for later notification
+                // AFTER the new state is applied (that after the para got removed)
+                ::uno::Reference< XAccessible > xPara(begin->first.get());
+
+                // release everything from the remove position until the end
+                maParaManager.Release(aFunctor.GetParaIndex(), nCurrParas);
+
+                // update num of paras
+                maParaManager.SetNum( nNewParas );
+
+                // TODO: Clarify whether this behaviour _really_ saves
+                // anybody anything!
+                // update children, _don't_ broadcast
+                UpdateVisibleChildren( false );
+                UpdateBoundRect();
+
+                // #i61812# notification for removed para
+                if (xPara.is())
+                    FireEvent(AccessibleEventId::CHILD, uno::Any(), uno::Any( xPara) );
+            }
+#ifdef DBG_UTIL
+            else
+                OSL_FAIL("AccessibleTextHelper_Impl::ProcessQueue() invalid hint id");
+#endif
+        }
+        else if( nNewParas != nCurrParas )
+        {
+            // release all paras
+            maParaManager.Release(0, nCurrParas);
+
+            // update num of paras
+            maParaManager.SetNum( nNewParas );
+
+            // #109864# create from scratch, don't broadcast
+            UpdateVisibleChildren( false );
+            UpdateBoundRect();
+
+            // number of paragraphs somehow changed - but we have no
+            // chance determining how. Thus, throw away everything and
+            // create from scratch.
+            // (child events should be broadcast after the changes are done...)
+            FireEvent(AccessibleEventId::INVALIDATE_ALL_CHILDREN);
+
+            // no need for further updates later on
+            bEverythingUpdated = true;
+        }
+
+        bool bUpdatedBoundRectAndVisibleChildren(false);
+
+        while( !maEventQueue.IsEmpty() )
+        {
+            ::std::unique_ptr< SfxHint > pHint( maEventQueue.PopFront() );
+            if (pHint)
+            {
+                const SfxHint& rHint = *pHint;
+
+                // Note, if you add events here, you need to update the AccessibleTextEventQueue::Append
+                // code, because only the events we process here, are actually queued there.
+
+                try
+                {
+
+                    if (rHint.GetId() == SfxHintId::ThisIsAnSdrHint)
+                    {
+                        const SdrHint* pSdrHint = static_cast< const SdrHint* >( &rHint );
+
+                        switch( pSdrHint->GetKind() )
+                        {
+                            case SdrHintKind::BeginEdit:
+                            {
+                                if(!IsActive())
+                                {
+                                    break;
+                                }
+                                // change children state
+                                maParaManager.SetActive();
+
+                                // per definition, edit mode text has the focus
+                                SetFocus( true );
+                                break;
+                            }
+
+                            case SdrHintKind::EndEdit:
+                            {
+                                // focused child now loses focus
+                                ESelection aSelection;
+                                if( GetEditViewForwarder().GetSelection( aSelection ) )
+                                    SetChildFocus( aSelection.nEndPara, false );
+
+                                // change children state
+                                maParaManager.SetActive( false );
+
+                                maLastSelection = ESelection( EE_PARA_NOT_FOUND, EE_INDEX_NOT_FOUND,
+                                                              EE_PARA_NOT_FOUND, EE_INDEX_NOT_FOUND);
+                                break;
+                            }
+                            default:
+                                break;
+                        }
+                    }
+                    else if( const SvxEditSourceHint* pEditSourceHint = dynamic_cast<const SvxEditSourceHint*>( &rHint ) )
+                    {
+                        switch( pEditSourceHint->GetId() )
+                        {
+                            case SfxHintId::EditSourceParasMoved:
+                            {
+                                DBG_ASSERT( pEditSourceHint->GetStartValue() < GetTextForwarder().GetParagraphCount() &&
+                                            pEditSourceHint->GetEndValue() < GetTextForwarder().GetParagraphCount(),
+                                            "AccessibleTextHelper_Impl::NotifyHdl: Invalid notification");
+
+                                if( !bEverythingUpdated )
+                                {
+                                    ParagraphsMoved(pEditSourceHint->GetStartValue(),
+                                                    pEditSourceHint->GetValue(),
+                                                    pEditSourceHint->GetEndValue());
+
+                                    // in all cases, check visibility afterwards.
+                                    UpdateVisibleChildren();
+                                }
+                                break;
+                            }
+
+                            case SfxHintId::EditSourceSelectionChanged:
+                                // notify listeners
+                                try
+                                {
+                                    UpdateSelection();
+                                }
+                                // maybe we're not in edit mode (this is not an error)
+                                catch( const uno::Exception& ) {}
+                                break;
+                            default: break;
+                        }
+                    }
+                    else if( const TextHint* pTextHint = dynamic_cast<const TextHint*>( &rHint ) )
+                    {
+                        const sal_Int32 nParas = GetTextForwarder().GetParagraphCount();
+
+                        switch( pTextHint->GetId() )
+                        {
+                            case SfxHintId::TextModified:
+                            {
+                                // notify listeners
+                                sal_Int32 nPara( pTextHint->GetValue() );
+
+                                // #108900# Delegate change event to children
+                                AccessibleTextHelper_ChildrenTextChanged aNotifyChildrenFunctor;
+
+                                if( nPara == EE_PARA_ALL )
+                                {
+                                    // #108900# Call every child
+                                    ::std::for_each( maParaManager.begin(), maParaManager.end(),
+                                                     AccessibleParaManager::WeakChildAdapter< AccessibleTextHelper_ChildrenTextChanged > (aNotifyChildrenFunctor) );
+                                }
+                                else
+                                    if( nPara < nParas )
+                                    {
+                                        // #108900# Call child at index nPara
+                                        ::std::for_each( maParaManager.begin()+nPara, maParaManager.begin()+nPara+1,
+                                                         AccessibleParaManager::WeakChildAdapter< AccessibleTextHelper_ChildrenTextChanged > (aNotifyChildrenFunctor) );
+                                    }
+                                break;
+                            }
+
+                            case SfxHintId::TextParaInserted:
+                                // already happened above
+                                break;
+
+                            case SfxHintId::TextParaRemoved:
+                                // already happened above
+                                break;
+
+                            case SfxHintId::TextHeightChanged:
+                                // visibility changed, done below
+                                break;
+
+                            case SfxHintId::TextViewScrolled:
+                                // visibility changed, done below
+                                break;
+                            default: break;
+                        }
+
+                        // in all cases, check visibility afterwards.
+                        if (!bUpdatedBoundRectAndVisibleChildren)
+                        {
+                            UpdateVisibleChildren();
+                            UpdateBoundRect();
+                            bUpdatedBoundRectAndVisibleChildren = true;
+                        }
+                    }
+                    else if (rHint.GetId() == SfxHintId::SvxViewChanged)
+                    {
+                        // just check visibility
+                        if (!bUpdatedBoundRectAndVisibleChildren)
+                        {
+                            UpdateVisibleChildren();
+                            UpdateBoundRect();
+                            bUpdatedBoundRectAndVisibleChildren = true;
+                        }
+                    }
+                    // it's VITAL to keep the SfxSimpleHint last! It's the base of some classes above!
+                    else if( rHint.GetId() == SfxHintId::Dying)
+                    {
+                        // edit source is dying under us, become defunc then
+                        try
+                        {
+                            // make edit source inaccessible
+                            // Note: cannot destroy it here, since we're called from there!
+                            ShutdownEditSource();
+                        }
+                        catch( const uno::Exception& ) {}
+                    }
+                }
+                catch( const uno::Exception& )
+                {
+                    DBG_UNHANDLED_EXCEPTION("svx");
+                }
+            }
+        }
+    }
+
+    void AccessibleTextHelper_Impl::Notify( SfxBroadcaster& /*rBC*/, const SfxHint& rHint )
+    {
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+
+        // precondition: not in a recursion
+        if( mbInNotify )
+            return;
+
+        mbInNotify = true;
+
+        try
+        {
+            // Process notification event, arranged in order of likelihood of
+            // occurrence to avoid unnecessary dynamic_cast. Note that
+            // SvxEditSourceHint is derived from TextHint, so has to be checked
+            // before that.
+            if (rHint.GetId() == SfxHintId::ThisIsAnSdrHint)
+            {
+                const SdrHint* pSdrHint = static_cast< const SdrHint* >( &rHint );
+                // process drawing layer events right away, if not
+                // within an open EE notification frame. Otherwise,
+                // event processing would be delayed until next EE
+                // notification sequence.
+                maEventQueue.Append( *pSdrHint );
+            }
+            else if (rHint.GetId() == SfxHintId::SvxViewChanged)
+            {
+                const SvxViewChangedHint* pViewHint = static_cast<const SvxViewChangedHint*>(&rHint);
+                // process visibility right away, if not within an
+                // open EE notification frame. Otherwise, event
+                // processing would be delayed until next EE
+                // notification sequence.
+                maEventQueue.Append( *pViewHint );
+            }
+            else if( const SvxEditSourceHint* pEditSourceHint = dynamic_cast<const SvxEditSourceHint*>( &rHint ) )
+            {
+                // EditEngine should emit TEXT_SELECTION_CHANGED events (#i27299#)
+                maEventQueue.Append( *pEditSourceHint );
+            }
+            else if( const TextHint* pTextHint = dynamic_cast<const TextHint*>( &rHint ) )
+            {
+                // EditEngine should emit TEXT_SELECTION_CHANGED events (#i27299#)
+                if(pTextHint->GetId() == SfxHintId::TextProcessNotifications)
+                    ProcessQueue();
+                else
+                    maEventQueue.Append( *pTextHint );
+            }
+            // it's VITAL to keep the SfxHint last! It's the base of the classes above!
+            else if( rHint.GetId() == SfxHintId::Dying )
+            {
+                // handle this event _at once_, because after that, objects are invalid
+                // edit source is dying under us, become defunc then
+                maEventQueue.Clear();
+                try
+                {
+                    // make edit source inaccessible
+                    // Note: cannot destroy it here, since we're called from there!
+                    ShutdownEditSource();
+                }
+                catch( const uno::Exception& ) {}
+            }
+        }
+        catch( const uno::Exception& )
+        {
+            DBG_UNHANDLED_EXCEPTION("svx");
+            mbInNotify = false;
+        }
+
+        mbInNotify = false;
+    }
+
+    void AccessibleTextHelper_Impl::Dispose()
+    {
+        if( getNotifierClientId() != snNotifierClientRevoked)
+        {
+            try
+            {
+                // #106234# Unregister from EventNotifier
+                ::comphelper::AccessibleEventNotifier::revokeClient( getNotifierClientId() );
+                SAL_INFO("svx", "disposed ID: " << mnNotifierClientId );
+            }
+            catch( const uno::Exception& ) {}
+
+            mnNotifierClientId = snNotifierClientRevoked;
+        }
+
+        try
+        {
+            // dispose children
+            maParaManager.Dispose();
+        }
+        catch( const uno::Exception& ) {}
+
+        // quit listen on stale edit source
+        if( maEditSource.IsValid() )
+            EndListening( maEditSource.GetBroadcaster() );
+
+        // clear references
+        maEditSource.SetEditSource( ::std::unique_ptr< SvxEditSource >() );
+        mxFrontEnd = nullptr;
+    }
+
+    void AccessibleTextHelper_Impl::FireEvent( const sal_Int16 nEventId, const uno::Any& rNewValue, const uno::Any& rOldValue ) const
+    {
+        // -- object locked --
+        AccessibleEventObject aEvent;
+        {
+            std::scoped_lock aGuard(maMutex);
+
+            DBG_ASSERT(mxFrontEnd.is(), "AccessibleTextHelper::FireEvent: no event source set");
+
+            if (mxFrontEnd.is())
+                aEvent = AccessibleEventObject(mxFrontEnd->getAccessibleContext(), nEventId,
+                                               rNewValue, rOldValue, -1);
+            else
+                aEvent = AccessibleEventObject(uno::Reference<uno::XInterface>(), nEventId,
+                                               rNewValue, rOldValue, -1);
+
+            // no locking necessary, FireEvent internally copies listeners
+            // if someone removes/adds in between Further locking,
+            // actually, might lead to deadlocks, since we're calling out
+            // of this object
+        }
+        // -- until here --
+
+        FireEvent(aEvent);
+    }
+
+    void AccessibleTextHelper_Impl::FireEvent( const AccessibleEventObject& rEvent ) const
+    {
+        // #106234# Delegate to EventNotifier
+        if (getNotifierClientId() != snNotifierClientRevoked)
+            ::comphelper::AccessibleEventNotifier::addEvent( getNotifierClientId(), rEvent );
+    }
+
+    // XAccessibleContext
+    sal_Int64 AccessibleTextHelper_Impl::getAccessibleChildCount() const
+    {
+        return mnLastVisibleChild - mnFirstVisibleChild + 1;
+    }
+
+    uno::Reference< XAccessible > AccessibleTextHelper_Impl::getAccessibleChild( sal_Int64 i )
+    {
+        i -= GetStartIndex();
+
+        if( 0 > i || i >= getAccessibleChildCount() ||
+            GetTextForwarder().GetParagraphCount() <= i )
+        {
+            throw lang::IndexOutOfBoundsException("Invalid child index", mxFrontEnd);
+        }
+
+        DBG_ASSERT(mxFrontEnd.is(), "AccessibleTextHelper_Impl::UpdateVisibleChildren: no frontend set");
+
+        if( mxFrontEnd.is() )
+            return maParaManager.CreateChild( i, mxFrontEnd, GetEditSource(), mnFirstVisibleChild + i ).first;
+        else
+            return nullptr;
+    }
+
+    void AccessibleTextHelper_Impl::addAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+    {
+        if( getNotifierClientId() != snNotifierClientRevoked )
+            ::comphelper::AccessibleEventNotifier::addEventListener( getNotifierClientId(), xListener );
+    }
+
+    void AccessibleTextHelper_Impl::removeAccessibleEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+    {
+        if( getNotifierClientId() == snNotifierClientRevoked )
+            return;
+
+        const sal_Int32 nListenerCount = ::comphelper::AccessibleEventNotifier::removeEventListener( getNotifierClientId(), 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::TClientId nId( getNotifierClientId() );
+            mnNotifierClientId = snNotifierClientRevoked;
+            ::comphelper::AccessibleEventNotifier::revokeClient( nId );
+        }
+    }
+
+    uno::Reference< XAccessible > AccessibleTextHelper_Impl::getAccessibleAtPoint( const awt::Point& _aPoint )
+    {
+        // make given position relative
+        if( !mxFrontEnd.is() )
+            throw uno::RuntimeException("AccessibleTextHelper_Impl::getAccessibleAt: frontend invalid", mxFrontEnd );
+
+        uno::Reference< XAccessibleContext > xFrontEndContext = mxFrontEnd->getAccessibleContext();
+
+        if( !xFrontEndContext.is() )
+            throw uno::RuntimeException("AccessibleTextHelper_Impl::getAccessibleAt: frontend invalid", mxFrontEnd );
+
+        uno::Reference< XAccessibleComponent > xFrontEndComponent( xFrontEndContext, uno::UNO_QUERY_THROW );
+
+        // #103862# No longer need to make given position relative
+        Point aPoint( _aPoint.X, _aPoint.Y );
+
+        // respect EditEngine offset to surrounding shape/cell
+        aPoint -= GetOffset();
+
+        // convert to EditEngine coordinate system
+        SvxTextForwarder& rCacheTF = GetTextForwarder();
+        Point aLogPoint( GetViewForwarder().PixelToLogic( aPoint, rCacheTF.GetMapMode() ) );
+
+        // iterate over all visible children (including those not yet created)
+        sal_Int64 nChild;
+        for( nChild=mnFirstVisibleChild; nChild <= mnLastVisibleChild; ++nChild )
+        {
+            DBG_ASSERT(nChild >= 0,
+                       "AccessibleTextHelper_Impl::getAccessibleAt: index value overflow");
+
+            tools::Rectangle aParaBounds( rCacheTF.GetParaBounds( nChild ) );
+
+            if( aParaBounds.Contains( aLogPoint ) )
+                return getAccessibleChild( nChild - mnFirstVisibleChild + GetStartIndex() );
+        }
+
+        // found none
+        return nullptr;
+    }
+
+
+    // AccessibleTextHelper implementation (simply forwards to impl)
+
+    AccessibleTextHelper::AccessibleTextHelper( ::std::unique_ptr< SvxEditSource > && pEditSource ) :
+        mpImpl( new AccessibleTextHelper_Impl() )
+    {
+        SolarMutexGuard aGuard;
+
+        SetEditSource( std::move(pEditSource) );
+    }
+
+    AccessibleTextHelper::~AccessibleTextHelper()
+    {
+    }
+
+    const SvxEditSource& AccessibleTextHelper::GetEditSource() const
+    {
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        const SvxEditSource& aEditSource = mpImpl->GetEditSource();
+
+        mpImpl->CheckInvariants();
+
+        return aEditSource;
+#else
+        return mpImpl->GetEditSource();
+#endif
+    }
+
+    void AccessibleTextHelper::SetEditSource( ::std::unique_ptr< SvxEditSource > && pEditSource )
+    {
+#ifdef DBG_UTIL
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->SetEditSource( std::move(pEditSource) );
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    void AccessibleTextHelper::SetEventSource( const uno::Reference< XAccessible >& rInterface )
+    {
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->SetEventSource( rInterface );
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    void AccessibleTextHelper::SetFocus( bool bHaveFocus )
+    {
+#ifdef DBG_UTIL
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->SetFocus( bHaveFocus );
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    bool AccessibleTextHelper::HaveFocus()
+    {
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        bool bRet( mpImpl->HaveFocus() );
+
+        mpImpl->CheckInvariants();
+
+        return bRet;
+#else
+        return mpImpl->HaveFocus();
+#endif
+    }
+
+    void AccessibleTextHelper::SetOffset( const Point& rPoint )
+    {
+#ifdef DBG_UTIL
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->SetOffset( rPoint );
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    void AccessibleTextHelper::SetStartIndex( sal_Int32 nOffset )
+    {
+#ifdef DBG_UTIL
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->SetStartIndex( nOffset );
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    sal_Int32 AccessibleTextHelper::GetStartIndex() const
+    {
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        sal_Int32 nOffset = mpImpl->GetStartIndex();
+
+        mpImpl->CheckInvariants();
+
+        return nOffset;
+#else
+        return mpImpl->GetStartIndex();
+#endif
+    }
+
+    void AccessibleTextHelper::SetAdditionalChildStates( sal_Int64 nChildStates )
+    {
+        mpImpl->SetAdditionalChildStates( nChildStates );
+    }
+
+    void AccessibleTextHelper::UpdateChildren()
+    {
+#ifdef DBG_UTIL
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->UpdateVisibleChildren();
+        mpImpl->UpdateBoundRect();
+
+        mpImpl->UpdateSelection();
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    void AccessibleTextHelper::UpdateSelection()
+    {
+#ifdef DBG_UTIL
+        // precondition: solar mutex locked
+        DBG_TESTSOLARMUTEX();
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->UpdateSelection();
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    void AccessibleTextHelper::Dispose()
+    {
+        // As Dispose calls ShutdownEditSource, which in turn
+        // deregisters as listener on the edit source, have to lock
+        // here
+        SolarMutexGuard aGuard;
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+
+        mpImpl->Dispose();
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+#endif
+    }
+
+    // XAccessibleContext
+    sal_Int64 AccessibleTextHelper::GetChildCount() const
+    {
+        SolarMutexGuard aGuard;
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        sal_Int64 nRet = mpImpl->getAccessibleChildCount();
+
+        mpImpl->CheckInvariants();
+
+        return nRet;
+#else
+        return mpImpl->getAccessibleChildCount();
+#endif
+    }
+
+    uno::Reference< XAccessible > AccessibleTextHelper::GetChild( sal_Int64 i )
+    {
+        SolarMutexGuard aGuard;
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        uno::Reference< XAccessible > xRet = mpImpl->getAccessibleChild( i );
+
+        mpImpl->CheckInvariants();
+
+        return xRet;
+#else
+        return mpImpl->getAccessibleChild( i );
+#endif
+    }
+
+    void AccessibleTextHelper::AddEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+    {
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        mpImpl->addAccessibleEventListener( xListener );
+
+        mpImpl->CheckInvariants();
+#else
+        mpImpl->addAccessibleEventListener( xListener );
+#endif
+    }
+
+    void AccessibleTextHelper::RemoveEventListener( const uno::Reference< XAccessibleEventListener >& xListener )
+    {
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        mpImpl->removeAccessibleEventListener( xListener );
+
+        mpImpl->CheckInvariants();
+#else
+        mpImpl->removeAccessibleEventListener( xListener );
+#endif
+    }
+
+    // XAccessibleComponent
+    uno::Reference< XAccessible > AccessibleTextHelper::GetAt( const awt::Point& aPoint )
+    {
+        SolarMutexGuard aGuard;
+
+#ifdef DBG_UTIL
+        mpImpl->CheckInvariants();
+
+        uno::Reference< XAccessible > xChild = mpImpl->getAccessibleAtPoint( aPoint );
+
+        mpImpl->CheckInvariants();
+
+        return xChild;
+#else
+        return mpImpl->getAccessibleAtPoint( aPoint );
+#endif
+    }
+
+} // end of namespace accessibility
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/ChildrenManager.cxx b/svx/source/accessibility/ChildrenManager.cxx
new file mode 100644
index 0000000000..2cac5153a5
--- /dev/null
+++ b/svx/source/accessibility/ChildrenManager.cxx
@@ -0,0 +1,115 @@
+/* -*- 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 <svx/ChildrenManager.hxx>
+#include "ChildrenManagerImpl.hxx"
+#include <sal/log.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using ::com::sun::star::uno::Reference;
+
+namespace accessibility {
+
+// AccessibleChildrenManager
+ChildrenManager::ChildrenManager (
+    const css::uno::Reference<XAccessible>& rxParent,
+    const css::uno::Reference<drawing::XShapes>& rxShapeList,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo,
+    AccessibleContextBase& rContext)
+    : mpImpl(
+        new ChildrenManagerImpl(
+            rxParent, rxShapeList, rShapeTreeInfo, rContext))
+{
+    mpImpl->Init ();
+}
+
+
+ChildrenManager::~ChildrenManager()
+{
+    mpImpl->dispose();
+
+    // empty
+    SAL_INFO("svx", "~ChildrenManager");
+}
+
+sal_Int64 ChildrenManager::GetChildCount() const noexcept
+{
+    return mpImpl->GetChildCount();
+}
+
+css::uno::Reference<XAccessible> ChildrenManager::GetChild (sal_Int64 nIndex)
+{
+    return mpImpl->GetChild (nIndex);
+}
+
+const css::uno::Reference<css::drawing::XShape>& ChildrenManager::GetChildShape(sal_Int64 nIndex)
+{
+    return mpImpl->GetChildShape(nIndex);
+}
+
+void ChildrenManager::Update (bool bCreateNewObjectsOnDemand)
+{
+    mpImpl->Update (bCreateNewObjectsOnDemand);
+}
+
+void ChildrenManager::SetShapeList (const css::uno::Reference<css::drawing::XShapes>& xShapeList)
+{
+    mpImpl->SetShapeList (xShapeList);
+}
+
+void ChildrenManager::AddAccessibleShape (rtl::Reference<AccessibleShape> const & shape)
+{
+    mpImpl->AddAccessibleShape (shape);
+}
+
+void ChildrenManager::ClearAccessibleShapeList()
+{
+    mpImpl->ClearAccessibleShapeList ();
+}
+
+void ChildrenManager::SetInfo (AccessibleShapeTreeInfo const & rShapeTreeInfo)
+{
+    mpImpl->SetInfo (rShapeTreeInfo);
+}
+
+void ChildrenManager::UpdateSelection()
+{
+    mpImpl->UpdateSelection ();
+}
+
+bool ChildrenManager::HasFocus() const
+{
+    return mpImpl->HasFocus ();
+}
+
+void ChildrenManager::RemoveFocus()
+{
+    mpImpl->RemoveFocus ();
+}
+
+// IAccessibleViewForwarderListener
+void ChildrenManager::ViewForwarderChanged()
+{
+    mpImpl->ViewForwarderChanged();
+}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/ChildrenManagerImpl.cxx b/svx/source/accessibility/ChildrenManagerImpl.cxx
new file mode 100644
index 0000000000..5271f1887b
--- /dev/null
+++ b/svx/source/accessibility/ChildrenManagerImpl.cxx
@@ -0,0 +1,1123 @@
+/* -*- 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 <cassert>
+
+#include "ChildrenManagerImpl.hxx"
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/AccessibleControlShape.hxx>
+#include <svx/AccessibleShape.hxx>
+#include <svx/AccessibleShapeInfo.hxx>
+#include <svx/IAccessibleViewForwarder.hxx>
+#include <utility>
+#include <vcl/svapp.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/beans/XPropertySet.hpp>
+#include <com/sun/star/document/XShapeEventBroadcaster.hpp>
+#include <com/sun/star/frame/XController.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/view/XSelectionSupplier.hpp>
+#include <com/sun/star/container/XChild.hpp>
+#include <comphelper/lok.hxx>
+#include <comphelper/types.hxx>
+#include <o3tl/safeint.hxx>
+#include <rtl/ustring.hxx>
+#include <tools/debug.hxx>
+#include <svx/SvxShapeTypes.hxx>
+#include <vcl/window.hxx>
+#include <shapecollection.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+using ::com::sun::star::uno::Reference;
+
+namespace accessibility {
+
+namespace
+{
+void adjustIndexInParentOfShapes(ChildDescriptorListType& _rList)
+{
+    sal_Int32 i=0;
+    for (auto& rItem : _rList)
+    {
+        rItem.setIndexAtAccessibleShape(i);
+        ++i;
+    }
+}
+}
+
+// AccessibleChildrenManager
+ChildrenManagerImpl::ChildrenManagerImpl (
+    uno::Reference<XAccessible> xParent,
+    uno::Reference<drawing::XShapes> xShapeList,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo,
+    AccessibleContextBase& rContext)
+    : mxShapeList (std::move(xShapeList)),
+      mxParent (std::move(xParent)),
+      maShapeTreeInfo (rShapeTreeInfo),
+      mrContext (rContext),
+      mpFocusedShape(nullptr)
+{
+}
+
+
+ChildrenManagerImpl::~ChildrenManagerImpl()
+{
+    DBG_ASSERT (m_bDisposed, "~AccessibleDrawDocumentView: object has not been disposed");
+}
+
+
+void ChildrenManagerImpl::Init()
+{
+    // Register as view::XSelectionChangeListener.
+    Reference<frame::XController> xController(maShapeTreeInfo.GetController());
+    Reference<view::XSelectionSupplier> xSelectionSupplier (
+        xController, uno::UNO_QUERY);
+    if (xSelectionSupplier.is())
+    {
+        xController->addEventListener(
+            static_cast<document::XEventListener*>(this));
+
+        xSelectionSupplier->addSelectionChangeListener (
+            static_cast<view::XSelectionChangeListener*>(this));
+    }
+
+    // Register at model as document::XEventListener.
+    if (maShapeTreeInfo.GetModelBroadcaster().is())
+        maShapeTreeInfo.GetModelBroadcaster()->addEventListener (
+            static_cast<document::XEventListener*>(this));
+}
+
+
+sal_Int64 ChildrenManagerImpl::GetChildCount() const noexcept
+{
+    return maVisibleChildren.size();
+}
+
+
+const css::uno::Reference<css::drawing::XShape>& ChildrenManagerImpl::GetChildShape(sal_Int64 nIndex)
+{
+    // Check whether the given index is valid.
+    if (nIndex < 0 || o3tl::make_unsigned(nIndex) >= maVisibleChildren.size())
+        throw lang::IndexOutOfBoundsException (
+            "no accessible child with index " + OUString::number(nIndex),
+            mxParent);
+    return maVisibleChildren[nIndex].mxShape;
+}
+
+/** Return the requested accessible child object.  Create it if it is not
+    yet in the cache.
+*/
+uno::Reference<XAccessible>
+    ChildrenManagerImpl::GetChild (sal_Int64 nIndex)
+{
+    // Check whether the given index is valid.
+    if (nIndex < 0 || o3tl::make_unsigned(nIndex) >= maVisibleChildren.size())
+        throw lang::IndexOutOfBoundsException (
+            "no accessible child with index " + OUString::number(nIndex),
+            mxParent);
+
+    return GetChild (maVisibleChildren[nIndex],nIndex);
+}
+
+
+/** Return the requested accessible child object.  Create it if it is not
+    yet in the cache.
+*/
+uno::Reference<XAccessible>
+    ChildrenManagerImpl::GetChild (ChildDescriptor& rChildDescriptor,sal_Int32 _nIndex)
+{
+    if ( ! rChildDescriptor.mxAccessibleShape.is())
+    {
+        SolarMutexGuard g;
+        // Make sure that the requested accessible object has not been
+        // created while locking the global mutex.
+        if ( ! rChildDescriptor.mxAccessibleShape.is())
+        {
+            AccessibleShapeInfo aShapeInfo(
+                        rChildDescriptor.mxShape,
+                        mxParent,
+                        this);
+            // Create accessible object that corresponds to the descriptor's
+            // shape.
+            rtl::Reference<AccessibleShape> pShape(
+                ShapeTypeHandler::Instance().CreateAccessibleObject (
+                    aShapeInfo,
+                    maShapeTreeInfo));
+            rChildDescriptor.mxAccessibleShape = pShape;
+            if ( pShape.is() )
+            {
+                pShape->Init();
+                pShape->setIndexInParent(_nIndex);
+            }
+        }
+    }
+
+    return rChildDescriptor.mxAccessibleShape;
+}
+
+
+/** Find all shapes among the specified shapes that lie fully or partially
+    inside the visible area.  Put those shapes into the cleared cache. The
+    corresponding accessible objects will be created on demand.
+
+    At the moment, first all accessible objects are removed from the cache
+    and the appropriate listeners are informed of this.  Next, the list is
+    created again.  This should be optimized in the future to not remove and
+    create objects that will be in the list before and after the update
+    method.
+*/
+void ChildrenManagerImpl::Update (bool bCreateNewObjectsOnDemand)
+{
+    if (maShapeTreeInfo.GetViewForwarder() == nullptr)
+        return;
+    tools::Rectangle aVisibleArea = maShapeTreeInfo.GetViewForwarder()->GetVisibleArea();
+
+    // 1. Create a local list of visible shapes.
+    ChildDescriptorListType aChildList;
+    CreateListOfVisibleShapes (aChildList);
+
+    // 2. Replace the current list of visible shapes with the new one.  Do
+    // the same with the visible area.
+    {
+        SolarMutexGuard g;
+
+        // Use swap to copy the contents of the new list in constant time.
+        maVisibleChildren.swap (aChildList);
+
+        // 3. Merge the information that is already known about the visible
+        // shapes from the previous list into the new list and identify
+        // old children that are now unused
+        std::vector<ChildDescriptor*> aUnusedChildList = MergeAccessibilityInformation (aChildList);
+
+        adjustIndexInParentOfShapes(maVisibleChildren);
+
+        // aChildList now contains all the old children, while maVisibleChildren
+        // contains all the current children
+
+        // 4. Find all shapes in the old list that are not in the current list,
+        // send appropriate events and remove the accessible shape.
+
+        // Do this *after* we have set our new list of children, because
+        // removing a child may cause
+
+        // ChildDescriptor::disposeAccessibleObject -->
+        // AccessibleContextBase::CommitChange -->
+        // AtkListener::notifyEvent ->
+        // AtkListener::handleChildRemoved ->
+        // AtkListener::updateChildList
+        // AccessibleDrawDocumentView::getAccessibleChildCount ->
+        // ChildrenManagerImpl::GetChildCount ->
+        // maVisibleChildren.size()
+
+        // to be fired, and so the operations will take place on
+        // the list we are trying to replace
+
+        RemoveNonVisibleChildren (aUnusedChildList);
+
+        aUnusedChildList.clear();
+        aChildList.clear();
+
+        maVisibleArea = aVisibleArea;
+    }
+
+    // 5. If the visible area has changed then send events that signal a
+    // change of their bounding boxes for all shapes that are members of
+    // both the current and the new list of visible shapes.
+    if (maVisibleArea != aVisibleArea)
+        SendVisibleAreaEvents (maVisibleChildren);
+
+    // 6. If children have to be created immediately and not on demand then
+    // create the missing accessible objects now.
+    if (bCreateNewObjectsOnDemand)
+        return;
+
+    //operate on a copy of the list and restore it afterwards to guard
+    //against the pathological case where maVisibleChildren gets modified
+    //by other calls to this object while CreateAccessibilityObjects
+    //executes which can happen when java is disabled and the "enable-java"
+    //dialog appears during the instantiation of the linguistic components
+    //triggered by the creation of shapes belonging to the a11y objects
+    //
+    //i.e. launch start-center, launch impress with java disabled and
+    //a java-using linguistic component installed
+    maVisibleChildren.swap(aChildList);
+    CreateAccessibilityObjects(aChildList);
+    maVisibleChildren.swap(aChildList);
+}
+
+void ChildrenManagerImpl::CreateListOfVisibleShapes (
+    ChildDescriptorListType& raDescriptorList)
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT (maShapeTreeInfo.GetViewForwarder() != nullptr);
+
+    tools::Rectangle aVisibleArea = maShapeTreeInfo.GetViewForwarder()->GetVisibleArea();
+
+    // Add the visible shapes for which the accessible objects already exist.
+    for (const auto& rpShape : maAccessibleShapes)
+    {
+        if (rpShape.is())
+        {
+            uno::Reference<XAccessibleComponent> xComponent (
+                rpShape->getAccessibleContext(), uno::UNO_QUERY);
+            if (xComponent.is())
+            {
+                // The bounding box of the object already is clipped to the
+                // visible area.  The object is therefore visible if the
+                // bounding box has non-zero extensions.
+                awt::Rectangle aPixelBBox (xComponent->getBounds());
+                if ((aPixelBBox.Width > 0) && (aPixelBBox.Height > 0))
+                    raDescriptorList.emplace_back(rpShape);
+            }
+        }
+    }
+
+    // Add the visible shapes for which only the XShapes exist.
+    if (!mxShapeList.is() || !mxShapeList->hasElements())
+        return;
+
+    sal_Int32 nShapeCount = mxShapeList->getCount();
+    raDescriptorList.reserve( nShapeCount );
+    awt::Point aPos;
+    awt::Size aSize;
+    tools::Rectangle aBoundingBox;
+    uno::Reference<drawing::XShape> xShape;
+    for (sal_Int32 i=0; i<nShapeCount; ++i)
+    {
+        mxShapeList->getByIndex(i) >>= xShape;
+        aPos = xShape->getPosition();
+        aSize = xShape->getSize();
+
+        aBoundingBox.SetLeft( aPos.X );
+        aBoundingBox.SetTop( aPos.Y );
+        aBoundingBox.SetRight( aPos.X + aSize.Width );
+        aBoundingBox.SetBottom( aPos.Y + aSize.Height );
+
+        // Insert shape if it is visible, i.e. its bounding box overlaps
+        // the visible area. In the LOK case we skip the overlap check
+        // since we could remove a shape that is visible on the client.
+        if ( aBoundingBox.Overlaps(aVisibleArea) || comphelper::LibreOfficeKit::isActive())
+            raDescriptorList.emplace_back(xShape);
+    }
+}
+
+namespace
+{
+
+bool childDescriptorLess(const ChildDescriptor& lhs, const ChildDescriptor& rhs)
+{
+
+    auto pLhsShape = lhs.mxShape.get();
+    auto pRhsShape = rhs.mxShape.get();
+    if (pLhsShape || pRhsShape)
+        return pLhsShape < pRhsShape;
+    return lhs.mxAccessibleShape.get() < rhs.mxAccessibleShape.get();
+}
+
+bool childDescriptorPtrLess(const ChildDescriptor* lhs, const ChildDescriptor* rhs)
+{
+    return childDescriptorLess(*lhs, *rhs);
+}
+
+}
+    
+void ChildrenManagerImpl::RemoveNonVisibleChildren (
+    const std::vector<ChildDescriptor*>& rNonVisibleChildren)
+{
+    for (ChildDescriptor* pChild : rNonVisibleChildren)
+    {
+        // The child is disposed when there is a UNO shape from which
+        // the accessible shape can be created when the shape becomes
+        // visible again.  When there is no such UNO shape then simply
+        // reset the descriptor but keep the accessibility object.
+        if (pChild->mxShape.is())
+        {
+            UnregisterAsDisposeListener (pChild->mxShape);
+            pChild->disposeAccessibleObject (mrContext);
+        }
+        else
+        {
+            AccessibleShape* pAccessibleShape = pChild->GetAccessibleShape();
+            pAccessibleShape->ResetState (AccessibleStateType::VISIBLE);
+            pChild->mxAccessibleShape = nullptr;
+        }
+    }
+}
+
+std::vector<ChildDescriptor*> ChildrenManagerImpl::MergeAccessibilityInformation (
+    ChildDescriptorListType& raOldChildList)
+
+{
+    // create a working copy of the vector of current children with pointers to elements,
+    // sort the old list and copy by mxShape, and then walk old/current lists in parallel,
+    // which avoids an O(n^2) loop
+    // (order of maVisibleChildren must remain unchanged to not randomly change a11y tree)
+    std::vector<ChildDescriptor*> aSortedVisibleChildren(maVisibleChildren.size());
+    std::transform(maVisibleChildren.begin(), maVisibleChildren.end(),
+                   aSortedVisibleChildren.begin(), [](auto& e) {return &e;});
+    std::sort(aSortedVisibleChildren.begin(), aSortedVisibleChildren.end(), childDescriptorPtrLess);
+
+    // old list can be reordered without problems
+    std::sort(raOldChildList.begin(), raOldChildList.end(), childDescriptorLess);
+
+    ChildDescriptorListType::const_iterator aOldChildDescriptor = raOldChildList.begin();
+    ChildDescriptorListType::const_iterator aEndOldChildren = raOldChildList.end();
+    for (ChildDescriptor* pChild : aSortedVisibleChildren)
+    {
+        while (aOldChildDescriptor != aEndOldChildren && childDescriptorLess(*aOldChildDescriptor, *pChild))
+        {
+            aOldChildDescriptor++;
+        }
+
+        // Copy accessible shape if that exists in the old descriptor.
+        if (aOldChildDescriptor != aEndOldChildren && *aOldChildDescriptor == *pChild &&
+            aOldChildDescriptor->mxAccessibleShape.is())
+        {
+            pChild->mxAccessibleShape = aOldChildDescriptor->mxAccessibleShape;
+            pChild->mbCreateEventPending = false;
+        }
+        else
+            RegisterAsDisposeListener (pChild->mxShape);
+    }
+
+    // collect list of children that are in the old, but not the new vector
+    std::vector<ChildDescriptor*> aObsoleteChildren;
+
+    auto newIt = aSortedVisibleChildren.begin();
+    auto newEnd = aSortedVisibleChildren.end();
+    for (ChildDescriptor& rOldChild : raOldChildList)
+    {
+        while (newIt != newEnd && childDescriptorLess(**newIt, rOldChild))
+            newIt++;
+        if (newIt == newEnd || !(**newIt == rOldChild) )
+            aObsoleteChildren.push_back(&rOldChild);
+    }
+
+    return aObsoleteChildren;
+}
+
+void ChildrenManagerImpl::SendVisibleAreaEvents (
+    ChildDescriptorListType& raNewChildList)
+{
+    for (const auto& rChild : raNewChildList)
+    {
+        // Tell shape of changed visible area.  To do this, fake a
+        // change of the view forwarder.  (Actually we usually get here
+        // as a result of a change of the view forwarder).
+        AccessibleShape* pShape = rChild.GetAccessibleShape ();
+        if (pShape != nullptr)
+            pShape->ViewForwarderChanged();
+    }
+}
+
+
+void ChildrenManagerImpl::CreateAccessibilityObjects (
+    ChildDescriptorListType& raNewChildList)
+{
+    sal_Int32 nPos = 0;
+    for ( auto& rChild : raNewChildList)
+    {
+        // Create the associated accessible object when the flag says so and
+        // it does not yet exist.
+        if ( ! rChild.mxAccessibleShape.is() )
+            GetChild (rChild, nPos);
+        if (rChild.mxAccessibleShape.is() && rChild.mbCreateEventPending)
+        {
+            rChild.mbCreateEventPending = false;
+            mrContext.CommitChange (
+                AccessibleEventId::CHILD,
+                uno::Any(uno::Reference<XAccessible>(rChild.mxAccessibleShape)),
+                uno::Any(), -1);
+        }
+        ++nPos;
+    }
+}
+
+
+void ChildrenManagerImpl::AddShape (const Reference<drawing::XShape>& rxShape)
+{
+    if (!rxShape.is())
+        return;
+
+    SolarMutexClearableGuard aGuard;
+
+    // Test visibility of the shape.
+    tools::Rectangle aVisibleArea = maShapeTreeInfo.GetViewForwarder()->GetVisibleArea();
+    awt::Point aPos = rxShape->getPosition();
+    awt::Size aSize = rxShape->getSize();
+
+    tools::Rectangle aBoundingBox (
+        aPos.X,
+        aPos.Y,
+        aPos.X + aSize.Width,
+        aPos.Y + aSize.Height);
+
+    // Add the shape only when it belongs to the list of shapes stored
+    // in mxShapeList (which is either a page or a group shape).
+    Reference<container::XChild> xChild (rxShape, uno::UNO_QUERY);
+    if (!xChild.is())
+        return;
+
+    Reference<drawing::XShapes> xParent (xChild->getParent(), uno::UNO_QUERY);
+    if (xParent != mxShapeList)
+        return;
+
+    if (!aBoundingBox.Overlaps(aVisibleArea) && !comphelper::LibreOfficeKit::isActive())
+        return;
+
+    // Add shape to list of visible shapes.
+    maVisibleChildren.emplace_back(rxShape);
+
+    // Create accessibility object.
+    ChildDescriptor& rDescriptor = maVisibleChildren.back();
+    GetChild (rDescriptor, maVisibleChildren.size()-1);
+
+    // Inform listeners about new child.
+    uno::Any aNewShape;
+    aNewShape <<= uno::Reference<XAccessible>(rDescriptor.mxAccessibleShape);
+    aGuard.clear();
+    mrContext.CommitChange (
+        AccessibleEventId::CHILD,
+        aNewShape,
+        uno::Any(),
+        maVisibleChildren.size() - 1);
+    RegisterAsDisposeListener(rxShape);
+}
+
+
+void ChildrenManagerImpl::RemoveShape (const Reference<drawing::XShape>& rxShape)
+{
+    if (!rxShape.is())
+        return;
+
+    SolarMutexGuard g;
+
+    // Search shape in list of visible children.
+    ChildDescriptorListType::iterator I (
+        ::std::find (maVisibleChildren.begin(), maVisibleChildren.end(),
+            ChildDescriptor (rxShape)));
+    if (I == maVisibleChildren.end())
+        return;
+
+    // Remove descriptor from that list.
+    Reference<XAccessible> xHoldAlive(I->mxAccessibleShape);
+
+    UnregisterAsDisposeListener (I->mxShape);
+    // Dispose the accessible object.
+    I->disposeAccessibleObject (mrContext);
+
+    // Now we can safely remove the child descriptor and thus
+    // invalidate the iterator.
+    maVisibleChildren.erase (I);
+
+    adjustIndexInParentOfShapes(maVisibleChildren);
+}
+
+
+void ChildrenManagerImpl::SetShapeList (const css::uno::Reference<css::drawing::XShapes>& xShapeList)
+{
+    mxShapeList = xShapeList;
+}
+
+
+void ChildrenManagerImpl::AddAccessibleShape (rtl::Reference<AccessibleShape> const & shape)
+{
+    assert(shape.is());
+    maAccessibleShapes.push_back (shape);
+}
+
+
+void ChildrenManagerImpl::ClearAccessibleShapeList()
+{
+    // Copy the list of (visible) shapes to local lists and clear the
+    // originals.
+    ChildDescriptorListType aLocalVisibleChildren;
+    aLocalVisibleChildren.swap(maVisibleChildren);
+    AccessibleShapeList aLocalAccessibleShapes;
+    aLocalAccessibleShapes.swap(maAccessibleShapes);
+
+    // Tell the listeners that all children are gone.
+    mrContext.CommitChange (
+        AccessibleEventId::INVALIDATE_ALL_CHILDREN,
+        uno::Any(),
+        uno::Any(), -1);
+
+    // Now the objects in the local lists can be safely disposed without
+    // having problems with callers that want to update their child lists.
+
+    // Clear the list of visible accessible objects.  Objects not created on
+    // demand for XShapes are treated below.
+    for (auto& rChild : aLocalVisibleChildren)
+        if ( rChild.mxAccessibleShape.is() && rChild.mxShape.is() )
+        {
+            rChild.mxAccessibleShape->dispose();
+            rChild.mxAccessibleShape = nullptr;
+        }
+
+    // Dispose all objects in the accessible shape list.
+    for (auto& rpShape : aLocalAccessibleShapes)
+        if (rpShape.is())
+        {
+            // Dispose the object.
+            rpShape->dispose();
+            rpShape = nullptr;
+        }
+}
+
+
+/** If the broadcasters change at which this object is registered then
+    unregister at old and register at new broadcasters.
+*/
+void ChildrenManagerImpl::SetInfo (const AccessibleShapeTreeInfo& rShapeTreeInfo)
+{
+    // Remember the current broadcasters and exchange the shape tree info.
+    Reference<document::XEventBroadcaster> xCurrentBroadcaster;
+    Reference<frame::XController> xCurrentController;
+    Reference<view::XSelectionSupplier> xCurrentSelectionSupplier;
+    {
+        SolarMutexGuard g;
+        xCurrentBroadcaster = maShapeTreeInfo.GetModelBroadcaster();
+        xCurrentController = maShapeTreeInfo.GetController();
+        xCurrentSelectionSupplier.set( xCurrentController, uno::UNO_QUERY);
+        maShapeTreeInfo = rShapeTreeInfo;
+    }
+
+    // Move registration to new model.
+    if (maShapeTreeInfo.GetModelBroadcaster() != xCurrentBroadcaster)
+    {
+        // Register at new broadcaster.
+        if (maShapeTreeInfo.GetModelBroadcaster().is())
+            maShapeTreeInfo.GetModelBroadcaster()->addEventListener (
+                static_cast<document::XEventListener*>(this));
+
+        // Unregister at old broadcaster.
+        if (xCurrentBroadcaster.is())
+            xCurrentBroadcaster->removeEventListener (
+                static_cast<document::XEventListener*>(this));
+    }
+
+    // Move registration to new selection supplier.
+    Reference<frame::XController> xNewController(maShapeTreeInfo.GetController());
+    Reference<view::XSelectionSupplier> xNewSelectionSupplier (
+        xNewController, uno::UNO_QUERY);
+    if (xNewSelectionSupplier == xCurrentSelectionSupplier)
+        return;
+
+    // Register at new broadcaster.
+    if (xNewSelectionSupplier.is())
+    {
+        xNewController->addEventListener(
+            static_cast<document::XEventListener*>(this));
+
+        xNewSelectionSupplier->addSelectionChangeListener (
+            static_cast<view::XSelectionChangeListener*>(this));
+    }
+
+    // Unregister at old broadcaster.
+    if (xCurrentSelectionSupplier.is())
+    {
+        xCurrentSelectionSupplier->removeSelectionChangeListener (
+            static_cast<view::XSelectionChangeListener*>(this));
+
+        xCurrentController->removeEventListener(
+            static_cast<document::XEventListener*>(this));
+    }
+}
+
+// lang::XEventListener
+void SAL_CALL
+    ChildrenManagerImpl::disposing (const lang::EventObject& rEventObject)
+{
+    if (rEventObject.Source == maShapeTreeInfo.GetModelBroadcaster()
+            || rEventObject.Source == maShapeTreeInfo.GetController())
+    {
+        impl_dispose();
+    }
+
+    // Handle disposing UNO shapes.
+    else
+    {
+        Reference<drawing::XShape> xShape (rEventObject.Source, uno::UNO_QUERY);
+
+        // Find the descriptor for the given shape.
+        ChildDescriptorListType::iterator I (
+            ::std::find (maVisibleChildren.begin(), maVisibleChildren.end(),
+                ChildDescriptor (xShape)));
+        if (I != maVisibleChildren.end())
+        {
+            // Clear the descriptor.
+            I->disposeAccessibleObject (mrContext);
+            I->mxShape = nullptr;
+        }
+    }
+}
+
+// document::XEventListener
+/** Listen for new and removed shapes.
+*/
+void SAL_CALL
+    ChildrenManagerImpl::notifyEvent (
+        const document::EventObject& rEventObject)
+{
+    // tdf#158169 if we are already disposed, execute no actions, but inform the
+    // caller that we are disposed
+    if ( m_bDisposed )
+        throw lang::DisposedException();
+
+    if (rEventObject.EventName == "ShapeInserted")
+        AddShape (Reference<drawing::XShape>(rEventObject.Source, uno::UNO_QUERY));
+    else if (rEventObject.EventName == "ShapeRemoved")
+        RemoveShape (Reference<drawing::XShape>(rEventObject.Source, uno::UNO_QUERY));
+    // else ignore unknown event.
+}
+
+// view::XSelectionChangeListener
+void  SAL_CALL
+    ChildrenManagerImpl::selectionChanged (const lang::EventObject& /*rEvent*/)
+{
+    UpdateSelection ();
+}
+
+
+void ChildrenManagerImpl::impl_dispose()
+{
+    Reference<frame::XController> xController(maShapeTreeInfo.GetController());
+    // Remove from broadcasters.
+    try
+    {
+        Reference<view::XSelectionSupplier> xSelectionSupplier (
+            xController, uno::UNO_QUERY);
+        if (xSelectionSupplier.is())
+        {
+            xSelectionSupplier->removeSelectionChangeListener (
+                static_cast<view::XSelectionChangeListener*>(this));
+        }
+    }
+    catch( uno::RuntimeException&)
+    {}
+
+    try
+    {
+        if (xController.is())
+            xController->removeEventListener(
+                static_cast<document::XEventListener*>(this));
+    }
+    catch( uno::RuntimeException&)
+    {}
+
+    maShapeTreeInfo.SetController (nullptr);
+
+    try
+    {
+        // Remove from broadcaster.
+        if (maShapeTreeInfo.GetModelBroadcaster().is())
+            maShapeTreeInfo.GetModelBroadcaster()->removeEventListener (
+                static_cast<document::XEventListener*>(this));
+        maShapeTreeInfo.SetModelBroadcaster (nullptr);
+    }
+    catch( uno::RuntimeException& )
+    {}
+
+    ClearAccessibleShapeList ();
+    SetShapeList (nullptr);
+}
+
+
+void ChildrenManagerImpl::disposing(std::unique_lock<std::mutex>&)
+{
+    impl_dispose();
+}
+
+// IAccessibleViewForwarderListener
+void ChildrenManagerImpl::ViewForwarderChanged()
+{
+    Update(false);
+}
+
+// IAccessibleParent
+bool ChildrenManagerImpl::ReplaceChild (
+    AccessibleShape* pCurrentChild,
+    const css::uno::Reference< css::drawing::XShape >& _rxShape,
+    const tools::Long /*_nIndex*/,
+    const AccessibleShapeTreeInfo& _rShapeTreeInfo)
+{
+    // Iterate over the visible children.  If one of them has an already
+    // created accessible object that matches pCurrentChild then replace
+    // it.  Otherwise the child to replace is either not in the list or has
+    // not ye been created (and is therefore not in the list, too) and a
+    // replacement is not necessary.
+    auto I = std::find_if(maVisibleChildren.begin(), maVisibleChildren.end(),
+        [&pCurrentChild](const ChildDescriptor& rChild) { return rChild.GetAccessibleShape() == pCurrentChild; });
+
+    if (I != maVisibleChildren.end())
+    {
+        // Dispose the current child and send an event about its deletion.
+        pCurrentChild->dispose();
+        mrContext.CommitChange (
+            AccessibleEventId::CHILD,
+            uno::Any(),
+            uno::Any (uno::Reference<XAccessible>(I->mxAccessibleShape)), -1);
+
+        // Replace with replacement and send an event about existence
+        // of the new child.
+        AccessibleShapeInfo aShapeInfo( _rxShape, pCurrentChild->getAccessibleParent(), this );
+        // create the new child
+        rtl::Reference<AccessibleShape> pNewChild(ShapeTypeHandler::Instance().CreateAccessibleObject (
+            aShapeInfo,
+            _rShapeTreeInfo
+        ));
+        if ( pNewChild.is() )
+            pNewChild->Init();
+
+        I->mxAccessibleShape = pNewChild.get();
+        mrContext.CommitChange (
+            AccessibleEventId::CHILD,
+            uno::Any (uno::Reference<XAccessible>(I->mxAccessibleShape)),
+            uno::Any(), -1);
+
+        return true;
+    }
+
+    // When not found among the visible children we have to search the list
+    // of accessible shapes.  This is not yet implemented.
+    return false;
+}
+
+// Add the impl method for IAccessibleParent interface
+AccessibleControlShape * ChildrenManagerImpl::GetAccControlShapeFromModel(css::beans::XPropertySet* pSet)
+{
+    sal_Int64 count = GetChildCount();
+    for (sal_Int64 index=0;index<count;index++)
+    {
+        AccessibleShape* pAccShape = maVisibleChildren[index].GetAccessibleShape();
+        if (pAccShape && ::accessibility::ShapeTypeHandler::Instance().GetTypeId(pAccShape->GetXShape()) == DRAWING_CONTROL)
+        {
+            auto* pCtlAccShape = static_cast<::accessibility::AccessibleControlShape*>(pAccShape);
+            if (pCtlAccShape->GetControlModel() == pSet)
+                return pCtlAccShape;
+        }
+    }
+    return nullptr;
+}
+uno::Reference<XAccessible>
+    ChildrenManagerImpl::GetAccessibleCaption (const uno::Reference<drawing::XShape>& xShape)
+{
+    auto I = std::find_if(maVisibleChildren.begin(), maVisibleChildren.end(),
+        [&xShape](const ChildDescriptor& rChild) { return rChild.mxShape.get() == xShape.get(); });
+    if (I != maVisibleChildren.end())
+        return I->mxAccessibleShape;
+    return uno::Reference<XAccessible> ();
+}
+
+/** Update the <const>SELECTED</const> and the <const>FOCUSED</const> state
+    of all visible children.  Maybe this should be changed to all children.
+
+    Iterate over all descriptors of visible accessible shapes and look them
+    up in the selection.
+
+    If there is no valid controller then all shapes are deselected and
+    unfocused.  If the controller's frame is not active then all shapes are
+    unfocused.
+*/
+void ChildrenManagerImpl::UpdateSelection()
+{
+    // Remember the current and new focused shape.
+    AccessibleShape* pCurrentlyFocusedShape = nullptr;
+    AccessibleShape* pNewFocusedShape = nullptr;
+    typedef std::pair< AccessibleShape* , sal_Bool > PAIR_SHAPE;//sal_Bool Selected,UnSelected.
+    typedef std::vector< PAIR_SHAPE > VEC_SHAPE;
+    VEC_SHAPE vecSelect;
+    int nAddSelect=0;
+    bool bHasSelectedShape=false;
+    if (!maVisibleChildren.empty())
+    {
+        Reference<frame::XController> xController(maShapeTreeInfo.GetController());
+        Reference<view::XSelectionSupplier> xSelectionSupplier (
+            xController, uno::UNO_QUERY);
+
+        // Try to cast the selection both to a multi selection and to a single
+        // selection.
+        Reference<container::XIndexAccess> xSelectedShapeAccess;
+        Reference<drawing::XShape> xSelectedShape;
+        if (xSelectionSupplier.is())
+        {
+            xSelectedShapeAccess.set( xSelectionSupplier->getSelection(), uno::UNO_QUERY);
+            xSelectedShape.set( xSelectionSupplier->getSelection(), uno::UNO_QUERY);
+        }
+
+        // tdf#139220 to quickly find if a given drawing::XShape is selected
+        std::vector<css::uno::Reference<css::drawing::XShape>> aSortedSelectedShapes;
+        if (!xSelectedShape.is() && xSelectedShapeAccess.is())
+        {
+            sal_Int32 nCount = xSelectedShapeAccess->getCount();
+            aSortedSelectedShapes.reserve(nCount);
+            if (auto pSvxShape = dynamic_cast<SvxShapeCollection*>(xSelectedShapeAccess.get()))
+            {
+                pSvxShape->getAllShapes(aSortedSelectedShapes);
+            }
+            else
+                for (sal_Int32 i = 0; i < nCount; ++i)
+                {
+                    css::uno::Reference<css::drawing::XShape> xShape(xSelectedShapeAccess->getByIndex(i), uno::UNO_QUERY);
+                    aSortedSelectedShapes.push_back(xShape);
+                }
+            std::sort(aSortedSelectedShapes.begin(), aSortedSelectedShapes.end());
+        }
+
+        for (const auto& rChild : maVisibleChildren)
+        {
+            AccessibleShape* pAccessibleShape = rChild.GetAccessibleShape();
+            if (rChild.mxAccessibleShape.is() && rChild.mxShape.is() && pAccessibleShape!=nullptr)
+            {
+                short nRole = pAccessibleShape->getAccessibleRole();
+                bool bDrawShape = (
+                    nRole == AccessibleRole::GRAPHIC ||
+                    nRole == AccessibleRole::EMBEDDED_OBJECT ||
+                    nRole == AccessibleRole::SHAPE ||
+                    nRole == AccessibleRole::IMAGE_MAP ||
+                    nRole == AccessibleRole::TABLE_CELL ||
+                    nRole == AccessibleRole::TABLE );
+                bool bShapeIsSelected = false;
+
+                // Look up the shape in the (single or multi-) selection.
+                if (xSelectedShape.is())
+                {
+                    if  (rChild.mxShape == xSelectedShape)
+                    {
+                        bShapeIsSelected = true;
+                        pNewFocusedShape = pAccessibleShape;
+                    }
+                }
+                else if (!aSortedSelectedShapes.empty())
+                {
+                    if (std::binary_search(aSortedSelectedShapes.begin(), aSortedSelectedShapes.end(), rChild.mxShape))
+                    {
+                        bShapeIsSelected = true;
+                        // In a multi-selection no shape has the focus.
+                        if (aSortedSelectedShapes.size() == 1)
+                            pNewFocusedShape = pAccessibleShape;
+                    }
+                }
+
+                // Set or reset the SELECTED state.
+                if (bShapeIsSelected)
+                {
+                    if (pAccessibleShape->SetState (AccessibleStateType::SELECTED))
+                    {
+                        if (bDrawShape)
+                        {
+                            vecSelect.emplace_back(pAccessibleShape,true);
+                            ++nAddSelect;
+                        }
+                    }
+                    else
+                    {//Selected not change,has selected shape before
+                        bHasSelectedShape=true;
+                    }
+                }
+                else
+                    //pAccessibleShape->ResetState (AccessibleStateType::SELECTED);
+                {
+                    if(pAccessibleShape->ResetState (AccessibleStateType::SELECTED))
+                    {
+                        if(bDrawShape)
+                        {
+                            vecSelect.emplace_back(pAccessibleShape,false);
+                        }
+                    }
+                }
+                // Does the shape have the current selection?
+                if (pAccessibleShape->GetState (AccessibleStateType::FOCUSED))
+                    pCurrentlyFocusedShape = pAccessibleShape;
+            }
+        }
+    }
+
+    vcl::Window *pParentWindow = maShapeTreeInfo.GetWindow();
+    bool bShapeActive= false;
+    // For table cell, the table's parent must be checked to make sure it has focus.
+    if (pParentWindow)
+    {
+        vcl::Window *pPWindow = pParentWindow->GetParent();
+        if (pParentWindow->HasFocus() || (pPWindow && pPWindow->HasFocus()))
+            bShapeActive =true;
+    }
+    // Move focus from current to newly focused shape.
+    if (pCurrentlyFocusedShape != pNewFocusedShape)
+    {
+        if (pCurrentlyFocusedShape != nullptr)
+            pCurrentlyFocusedShape->ResetState (AccessibleStateType::FOCUSED);
+        if (pNewFocusedShape != nullptr && bShapeActive)
+            pNewFocusedShape->SetState (AccessibleStateType::FOCUSED);
+    }
+
+    if (nAddSelect >= 10 )//fire selection  within
+    {
+        mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED_WITHIN,uno::Any(),uno::Any(), -1);
+        nAddSelect =0 ;//not fire selection event
+    }
+    for (VEC_SHAPE::reverse_iterator vi = vecSelect.rbegin(), aEndVecSelect = vecSelect.rend(); vi != aEndVecSelect ;++vi)
+    {
+        PAIR_SHAPE &pairShape= *vi;
+        Reference< XAccessible > xShape(pairShape.first);
+        uno::Any anyShape;
+        anyShape <<= xShape;
+
+        if (pairShape.second)//Selection add
+        {
+            if (bHasSelectedShape)
+            {
+                if (  nAddSelect > 0 )
+                {
+                    mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED_ADD,anyShape,uno::Any(), -1);
+                }
+            }
+            else
+            {
+                //if has not selected shape ,first selected shape is fire selection event;
+                if (nAddSelect > 0 )
+                {
+                    mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED,anyShape,uno::Any(), -1);
+                }
+                if (nAddSelect > 1 )//check other selected shape fire selection add event
+                {
+                    bHasSelectedShape=true;
+                }
+            }
+        }
+        else //selection remove
+        {
+            mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED_REMOVE,anyShape,uno::Any(), -1);
+        }
+    }
+
+    // We need to know when text content is no more edited but shape is still selected.
+    // For instance when ESC is pressed.
+    // The only difference is provided by nSelectedChildCount: on editing is equal to 1.
+    // In the following a shape get selected, but it was already selected, anyway editing is no more active.
+    if (comphelper::LibreOfficeKit::isActive() && pNewFocusedShape && nAddSelect == 0)
+    {
+        sal_Int64 nChildCount = pNewFocusedShape->getAccessibleChildCount();
+        sal_Int64 nSelectedChildCount = pNewFocusedShape->getSelectedAccessibleChildCount();
+        if (nChildCount > 0 && nSelectedChildCount == 0)
+        {
+            Reference< XAccessible > xShape(pNewFocusedShape);
+            uno::Any anyShape;
+            anyShape <<= xShape;
+            mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED,anyShape,uno::Any(), -1);
+        }
+    }
+
+    // Remember whether there is a shape that now has the focus.
+    mpFocusedShape = pNewFocusedShape;
+}
+
+
+bool ChildrenManagerImpl::HasFocus() const
+{
+    return mpFocusedShape != nullptr;
+}
+
+
+void ChildrenManagerImpl::RemoveFocus()
+{
+    if (mpFocusedShape != nullptr)
+    {
+        mpFocusedShape->ResetState (AccessibleStateType::FOCUSED);
+        mpFocusedShape = nullptr;
+    }
+}
+
+
+void ChildrenManagerImpl::RegisterAsDisposeListener (
+    const Reference<drawing::XShape>& xShape)
+{
+    Reference<lang::XComponent> xComponent (xShape, uno::UNO_QUERY);
+    if (xComponent.is())
+        xComponent->addEventListener (
+            static_cast<document::XEventListener*>(this));
+}
+
+
+void ChildrenManagerImpl::UnregisterAsDisposeListener (
+    const Reference<drawing::XShape>& xShape)
+{
+    Reference<lang::XComponent> xComponent (xShape, uno::UNO_QUERY);
+    if (xComponent.is())
+        xComponent->removeEventListener (
+            static_cast<document::XEventListener*>(this));
+}
+
+// AccessibleChildDescriptor
+ChildDescriptor::ChildDescriptor (const Reference<drawing::XShape>& xShape)
+    : mxShape (xShape),
+      mbCreateEventPending (true)
+{
+    // Empty.
+}
+
+
+ChildDescriptor::ChildDescriptor (const rtl::Reference<AccessibleShape>& rxAccessibleShape)
+    : mxAccessibleShape (rxAccessibleShape),
+      mbCreateEventPending (true)
+{
+    // Make sure that the accessible object has the <const>VISIBLE</const>
+    // state set.
+    AccessibleShape* pAccessibleShape = GetAccessibleShape();
+    pAccessibleShape->SetState (AccessibleStateType::VISIBLE);
+}
+
+void ChildDescriptor::setIndexAtAccessibleShape(sal_Int32 _nIndex)
+{
+    AccessibleShape* pShape = GetAccessibleShape();
+    if ( pShape )
+        pShape->setIndexInParent(_nIndex);
+}
+
+
+void ChildDescriptor::disposeAccessibleObject (AccessibleContextBase& rParent)
+{
+    if (!mxAccessibleShape.is())
+        return;
+
+    // Send event that the shape has been removed.
+    uno::Any aOldValue;
+    aOldValue <<= uno::Reference<XAccessible>(mxAccessibleShape);
+    rParent.CommitChange (
+        AccessibleEventId::CHILD,
+        uno::Any(),
+        aOldValue, -1);
+
+    // Dispose and remove the object.
+    if (mxAccessibleShape.is())
+        mxAccessibleShape->dispose();
+
+    mxAccessibleShape = nullptr;
+}
+
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/ChildrenManagerImpl.hxx b/svx/source/accessibility/ChildrenManagerImpl.hxx
new file mode 100644
index 0000000000..2de34e10da
--- /dev/null
+++ b/svx/source/accessibility/ChildrenManagerImpl.hxx
@@ -0,0 +1,497 @@
+/* -*- 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_SVX_SOURCE_ACCESSIBILITY_CHILDRENMANAGERIMPL_HXX
+#define INCLUDED_SVX_SOURCE_ACCESSIBILITY_CHILDRENMANAGERIMPL_HXX
+
+#include <svx/IAccessibleViewForwarderListener.hxx>
+#include <svx/IAccessibleParent.hxx>
+#include <svx/AccessibleShapeTreeInfo.hxx>
+#include <editeng/AccessibleContextBase.hxx>
+#include <comphelper/compbase.hxx>
+#include <tools/gen.hxx>
+#include <vector>
+#include <com/sun/star/drawing/XShape.hpp>
+#include <com/sun/star/drawing/XShapes.hpp>
+#include <com/sun/star/document/XEventListener.hpp>
+#include <com/sun/star/view/XSelectionChangeListener.hpp>
+#include <com/sun/star/accessibility/XAccessible.hpp>
+
+namespace accessibility {
+
+class AccessibleShape;
+
+class ChildDescriptor; // See below for declaration.
+typedef ::std::vector<ChildDescriptor> ChildDescriptorListType;
+
+// Re-using MutexOwner class defined in AccessibleContextBase.hxx
+
+/** This class contains the actual implementation of the children manager.
+
+    <p>It maintains a set of visible accessible shapes in
+    <member>maVisibleChildren</member>.  The objects in this list stem from
+    two sources.  The first is a list of UNO shapes like the list of shapes
+    in a draw page.  A reference to this list is held in
+    <member>maShapeList</member>.  Accessible objects for these shapes are
+    created on demand.  The list can be replaced by calls to the
+    <member>SetShapeList</member> method.  The second source is a list of
+    already accessible objects.  It can be modified by calls to the
+    <member>AddAccessibleShape</member> and
+    <member>ClearAccessibleShapeList</member> methods.</p>
+
+    <p>Each call of the <member>Update</member> method leads to a
+    re-calculation of the visible shapes which then can be queried with the
+    <member>GetChildCount</member> and <member>GetChild</member> methods.
+    Events are sent informing all listeners about the removed shapes which are
+    not visible anymore and about the added shapes.</p>
+
+    <p> The visible area which is used to determine the visibility of the
+    shapes is taken from the view forwarder.  Thus, to signal a change of
+    the visible area call <member>ViewForwarderChanged</member>.</p>
+
+    <p>The children manager adds itself as disposing() listener at every UNO
+    shape it creates an accessible object for so that when the UNO shape
+    passes away it can dispose() the associated accessible object.</p>
+
+    @see ChildrenManager
+*/
+class ChildrenManagerImpl final
+    :   public comphelper::WeakComponentImplHelper<
+            css::document::XEventListener,
+            css::view::XSelectionChangeListener>,
+        public IAccessibleViewForwarderListener,
+        public IAccessibleParent
+{
+public:
+    /** Create a children manager, which manages the children of the given
+        parent.  The parent is used for creating accessible objects.  The
+        list of shapes for which to create those objects is not derived from
+        the parent and has to be provided separately by calling one of the
+        update methods.
+        @param rxParent
+            The parent of the accessible objects which will be created
+            on demand at some point of time in the future.
+        @param rxShapeList
+            List of UNO shapes to manage.
+        @param rShapeTreeInfo
+            Bundle of information passed down the shape tree.
+        @param rContext
+            An accessible context object that is called for firing events
+            for new and deleted children, i.e. that holds a list of
+            listeners to be informed.
+    */
+    ChildrenManagerImpl (css::uno::Reference<css::accessibility::XAccessible> xParent,
+        css::uno::Reference<css::drawing::XShapes> xShapeList,
+        const AccessibleShapeTreeInfo& rShapeTreeInfo,
+        AccessibleContextBase& rContext);
+
+    /** If there still are managed children these are disposed and
+        released.
+    */
+    virtual ~ChildrenManagerImpl() override;
+
+    /** Do that part of the initialization that you can not or should not do
+        in the constructor like registering at broadcasters.
+    */
+    void Init();
+
+    /** Return the number of currently visible accessible children.
+        @return
+            If there are no children a 0 is returned.
+    */
+    sal_Int64 GetChildCount() const noexcept;
+
+    /// @throws css::uno::RuntimeException
+    /// @throws css::lang::IndexOutOfBoundsException
+    const css::uno::Reference<css::drawing::XShape>& GetChildShape(sal_Int64 nIndex);
+    /** Return the requested accessible child or throw and
+        IndexOutOfBoundsException if the given index is invalid.
+        @param nIndex
+            Index of the requested child.  Call getChildCount for obtaining
+            the number of children.
+        @return
+            In case of a valid index this method returns a reference to the
+            requested accessible child.  This reference is empty if it has
+            not been possible to create the accessible object of the
+            corresponding shape.
+        @throws
+            Throws an IndexOutOfBoundsException if the index is not valid.
+    */
+    css::uno::Reference<css::accessibility::XAccessible>
+        GetChild (sal_Int64 nIndex);
+
+    /** Return the requested accessible child.
+        @param aChildDescriptor
+            This object contains references to the original shape and its
+            associated accessible object.
+        @param  _nIndex
+            The index which will be used in getAccessibleIndexInParent of the accessible shape.
+        @return
+            Returns a reference to the requested accessible child.  This
+            reference is empty if it has not been possible to create the
+            accessible object of the corresponding shape.
+        @throws css::uno::RuntimeException
+    */
+    css::uno::Reference<css::accessibility::XAccessible>
+        GetChild (ChildDescriptor& aChildDescriptor,sal_Int32 _nIndex);
+
+    /** Update the child manager.  Take care of a modified set of children
+        and modified visible area.  This method can optimize the update
+        process with respect separate updates of a modified children list
+        and visible area.
+        @param bCreateNewObjectsOnDemand
+            If </true> then accessible objects associated with the visible
+            shapes are created only when asked for.  No event is sent on
+            creation.  If </false> then the accessible objects are created
+            before this method returns and events are sent to inform the
+            listeners of the new object.
+    */
+    void Update (bool bCreateNewObjectsOnDemand);
+
+    /** Set the list of UNO shapes to the given list.  This removes the old
+        list and does not add to it. The list of accessible shapes that is
+        build up by calls to <member>AddAccessibleShape</member> is not
+        modified.  Neither is the list of visible children.  Accessible
+        objects are created on demand.
+        @param xShapeList
+            The list of UNO shapes that replaces the old list.
+    */
+    void SetShapeList (const css::uno::Reference<css::drawing::XShapes>& xShapeList);
+
+    /** Add an accessible shape.  This does not modify the list of UNO shapes
+        or the list of visible shapes.  Accessible shapes are, at the
+        moment, not tested against the visible area but are always appended
+        to the list of visible children.
+        @param shape
+            The new shape that is added to the list of accessible shapes; must
+            be non-null.
+    */
+    void AddAccessibleShape (rtl::Reference<AccessibleShape> const & shape);
+
+    /** Clear the lists of accessible shapes and that of visible accessible
+        shapes.  The list of UNO shapes is not modified.
+    */
+    void ClearAccessibleShapeList();
+
+    /** Set a new event shape tree info.  Call this method to inform the
+        children manager of a change of the info bundle.
+        @param rShapeTreeInfo
+            The new info that replaces the current one.
+    */
+    void SetInfo (const AccessibleShapeTreeInfo& rShapeTreeInfo);
+
+    /** Update the SELECTED and FOCUSED states of all visible children
+        according to the given selection.  This includes setting
+        <em>and</em> resetting the states.
+    */
+    void UpdateSelection();
+
+    /** Return whether one of the shapes managed by this object has
+        currently the focus.
+        @return
+            Returns <true/> when there is a shape that has the focus and
+            <false/> when there is no such shape.
+    */
+    bool HasFocus() const;
+
+    /** When there is a shape that currently has the focus,
+        i.e. <member>HasFocus()</member> returns <true/> then remove the
+        focus from that shape.  Otherwise nothing changes.
+    */
+    void RemoveFocus();
+
+    // lang::XEventListener
+    virtual void SAL_CALL
+        disposing (const css::lang::EventObject& rEventObject) override;
+
+    // document::XEventListener
+    virtual void SAL_CALL
+        notifyEvent (const css::document::EventObject& rEventObject) override;
+
+    // view::XSelectionChangeListener
+    virtual void  SAL_CALL
+        selectionChanged (const css::lang::EventObject& rEvent) override;
+
+    // IAccessibleViewForwarderListener
+    /** Informs this children manager and its children about a change of one
+        (or more) aspect of the view forwarder.
+        @param aChangeType
+            A change type of <const>VISIBLE_AREA</const> leads to a call to
+            the <member>Update</member> which creates accessible objects of
+            new shapes immediately.  Other change types are passed to the
+            visible accessible children without calling
+            <member>Update</member>.
+        @param pViewForwarder
+            The modified view forwarder.  Use this one from now on.
+    */
+    virtual void ViewForwarderChanged() override;
+
+    // IAccessibleParent
+    /** Replace the specified child with a replacement.
+        @param pCurrentChild
+            This child is to be replaced.
+        @param pReplacement
+            The replacement for the current child.
+        @return
+            The returned value indicates whether the replacement has been
+            finished successfully.
+    */
+    virtual bool ReplaceChild (
+        AccessibleShape* pCurrentChild,
+        const css::uno::Reference< css::drawing::XShape >& _rxShape,
+        const tools::Long _nIndex,
+        const AccessibleShapeTreeInfo& _rShapeTreeInfo
+    ) override;
+
+    // Add the impl method for IAccessibleParent interface
+    virtual AccessibleControlShape* GetAccControlShapeFromModel
+        (css::beans::XPropertySet* pSet) override;
+    virtual css::uno::Reference<css::accessibility::XAccessible>
+        GetAccessibleCaption (const css::uno::Reference<css::drawing::XShape>& xShape) override;
+
+private:
+    /** This list holds the descriptors of all currently visible shapes and
+        associated accessible object.
+
+        <p>With the descriptors it maintains a mapping of shapes to
+        accessible objects.  It acts as a cache in that accessible objects
+        are only created on demand and released with every update (where the
+        latter may be optimized by the update methods).<p>
+
+        <p>The list is realized as a vector because it remains unchanged
+        between updates (i.e. complete rebuilds of the list) and allows a
+        fast (constant time) access to its elements for given indices.</p>
+    */
+    ChildDescriptorListType maVisibleChildren;
+
+    /** The original list of UNO shapes.  The visible shapes are inserted
+        into the list of visible children
+        <member>maVisibleChildren</member>.
+    */
+    css::uno::Reference<css::drawing::XShapes> mxShapeList;
+
+    /** This list of additional accessible shapes that can or shall not be
+        created by the shape factory.
+    */
+    typedef std::vector< rtl::Reference< AccessibleShape> > AccessibleShapeList;
+    AccessibleShapeList maAccessibleShapes;
+
+    /** Rectangle that describes the visible area in which a shape has to lie
+        at least partly, to be accessible through this class.  Used to
+        detect changes of the visible area after changes of the view forwarder.
+    */
+    tools::Rectangle maVisibleArea;
+
+    /** The parent of the shapes.  It is used for creating accessible
+        objects for given shapes.
+    */
+    css::uno::Reference<css::accessibility::XAccessible> mxParent;
+
+    /** Bundle of information passed down the shape tree.
+    */
+    AccessibleShapeTreeInfo maShapeTreeInfo;
+
+    /** Reference to an accessible context object that is used to inform its
+        listeners of new and removed children.
+    */
+    AccessibleContextBase& mrContext;
+
+    /** This method is called from the component helper base class while
+        disposing.
+    */
+    virtual void disposing(std::unique_lock<std::mutex>&) override;
+
+    void impl_dispose();
+
+    ChildrenManagerImpl (const ChildrenManagerImpl&) = delete;
+    ChildrenManagerImpl& operator= (const ChildrenManagerImpl&) = delete;
+
+    /** This member points to the currently focused shape.  It is NULL when
+        there is no focused shape.
+    */
+    AccessibleShape* mpFocusedShape;
+
+    /** Three helper functions for the <member>Update</member> method.
+    */
+
+    /** Create a list of visible shapes from the list of UNO shapes
+        <member>maShapeList</member> and the list of accessible objects.
+        @param raChildList
+            For every visible shape from the two sources mentioned above one
+            descriptor is added to this list.
+    */
+    void CreateListOfVisibleShapes (ChildDescriptorListType& raChildList);
+
+    /** From the old list of (former) visible shapes remove those that
+        are not member of the new list.  Send appropriate events for every
+        such shape.
+        @param raNewChildList
+            The new list of visible children against which the old one
+            is compared.
+        @param raOldChildList
+            The old list of visible children against which the new one
+            is compared.
+    */
+    void RemoveNonVisibleChildren (
+        const std::vector<ChildDescriptor*>& rNonVisibleChildren);
+
+    /** Merge the information that is already known about the visible shapes
+        from the old list into the current list, and return a list of
+        children that are in the old list, but not the current one.
+        @param raChildList
+            Information is merged to the current list of visible children
+            from this list. The old list can get reordered.
+        @return
+            Vector of children that are in the old list, but not the current
+            one.
+    */
+    std::vector<ChildDescriptor*> MergeAccessibilityInformation (ChildDescriptorListType& raChildList);
+
+    /** If the visible area has changed then send events that signal a
+        change of their bounding boxes for all shapes that are members of
+        both the current and the new list of visible shapes.
+        @param raChildList
+            Events are sent to all entries of this list that already contain
+            an accessible object.
+    */
+    static void SendVisibleAreaEvents (ChildDescriptorListType& raChildList);
+
+    /** If children have to be created immediately and not on demand the
+        create the missing accessible objects now.
+        @param raDescriptorList
+            Create an accessible object for every member of this list where
+            that object does not already exist.
+    */
+    void CreateAccessibilityObjects (ChildDescriptorListType& raChildList);
+
+    /** Add a single shape.  Update all relevant data structures
+        accordingly.  Use this method instead of <member>Update()</member>
+        when only a single shape has been added.
+    */
+    void AddShape (const css::uno::Reference<css::drawing::XShape>& xShape);
+
+    /** Remove a single shape.  Update all relevant data structures
+        accordingly.  Use this method instead of <member>Update()</member>
+        when only a single shape has been removed.
+    */
+    void RemoveShape (const css::uno::Reference<css::drawing::XShape>& xShape);
+
+    /** Add the children manager as dispose listener at the given shape so
+        that the associated accessible object can be disposed when the shape
+        is disposed.
+        @param xShape
+            Register at this shape as dispose listener.
+    */
+    void RegisterAsDisposeListener (const css::uno::Reference<css::drawing::XShape>& xShape);
+
+    /** Remove the children manager as dispose listener at the given shape
+        @param xShape
+            Unregister at this shape as dispose listener.
+    */
+    void UnregisterAsDisposeListener (const css::uno::Reference<css::drawing::XShape>& xShape);
+};
+
+
+/** A child descriptor holds a reference to a UNO shape and the
+    corresponding accessible object.  There are two use cases:
+    <ol><li>The accessible object is only created on demand and is then
+    initially empty.</li>
+    <li>There is no UNO shape.  The accessible object is given as argument
+    to the constructor.</li>
+    </ol>
+    In both cases the child descriptor assumes ownership over the accessible
+    object.
+*/
+class ChildDescriptor
+{
+public:
+    /** Reference to a (partially) visible shape.
+    */
+    css::uno::Reference<css::drawing::XShape> mxShape;
+
+    /** The corresponding accessible object.  This reference is initially
+        empty and only replaced by a reference to a new object when that is
+        requested from the outside.
+    */
+    rtl::Reference<AccessibleShape> mxAccessibleShape;
+
+    /** Return a pointer to the implementation object of the accessible
+        shape of this descriptor.
+        @return
+            The result is NULL if either the UNO reference to the accessible
+            shape is empty or it can not be transformed into a pointer to
+            the desired class.
+    */
+    AccessibleShape* GetAccessibleShape() const { return mxAccessibleShape.get(); }
+
+    /** set the index _nIndex at the accessible shape
+        @param  _nIndex
+            The new index in parent.
+    */
+    void setIndexAtAccessibleShape(sal_Int32 _nIndex);
+
+    /** This flag is set during the visibility calculation and indicates
+        that at one time in this process an event is sent that informs the
+        listeners of the creation of a new accessible object.  This flags is
+        not reset afterwards.  Don't use it unless you know exactly what you
+        are doing.
+    */
+    bool mbCreateEventPending;
+
+    /** Create a new descriptor for the specified shape with empty reference
+        to accessible object.
+    */
+    explicit ChildDescriptor (const css::uno::Reference<css::drawing::XShape>& xShape);
+
+    /** Create a new descriptor for the specified shape with empty reference
+        to the original shape.
+    */
+    explicit ChildDescriptor (const rtl::Reference<AccessibleShape>& rxAccessibleShape);
+
+    /** Dispose the accessible object of this descriptor.  If that object
+        does not exist then do nothing.
+        @param rParent
+            The parent of the accessible object to dispose.  A child event
+            is sent in its name.
+    */
+    void disposeAccessibleObject (AccessibleContextBase& rParent);
+
+    /** Compare two child descriptors.  Take into account that a child
+        descriptor may be based on a UNO shape or, already, on an accessible
+        shape.
+    */
+    bool operator == (const ChildDescriptor& aDescriptor) const
+    {
+        return (
+                this == &aDescriptor ||
+                (
+                 (mxShape.get() == aDescriptor.mxShape.get() ) &&
+                 (mxShape.is() || mxAccessibleShape.get() == aDescriptor.mxAccessibleShape.get())
+                )
+               );
+    }
+
+};
+
+
+} // end of namespace accessibility
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/DescriptionGenerator.cxx b/svx/source/accessibility/DescriptionGenerator.cxx
new file mode 100644
index 0000000000..ad133fa8f4
--- /dev/null
+++ b/svx/source/accessibility/DescriptionGenerator.cxx
@@ -0,0 +1,188 @@
+/* -*- 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 <DescriptionGenerator.hxx>
+#include <com/sun/star/beans/PropertyState.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/XPropertyState.hpp>
+#include <com/sun/star/container/XNamed.hpp>
+#include <com/sun/star/drawing/XShape.hpp>
+#include <utility>
+#include <vcl/svapp.hxx>
+
+// Includes for string resources.
+#include <svx/strings.hrc>
+#include <svx/dialmgr.hxx>
+
+#include "lookupcolorname.hxx"
+
+using namespace ::com::sun::star;
+
+namespace accessibility
+{
+DescriptionGenerator::DescriptionGenerator(uno::Reference<drawing::XShape> xShape)
+    : mxShape(std::move(xShape))
+    , mxSet(mxShape, uno::UNO_QUERY)
+    , mbIsFirstProperty(true)
+{
+}
+
+DescriptionGenerator::~DescriptionGenerator() {}
+
+void DescriptionGenerator::Initialize(TranslateId pResourceId)
+{
+    // Get the string from the resource for the specified id.
+    OUString sPrefix;
+    {
+        SolarMutexGuard aGuard;
+        sPrefix = SvxResId(pResourceId);
+    }
+
+    // Forward the call with the resulting string.
+    Initialize(sPrefix);
+}
+
+void DescriptionGenerator::Initialize(std::u16string_view sPrefix)
+{
+    msDescription = sPrefix;
+    if (!mxSet.is())
+        return;
+
+    {
+        SolarMutexGuard aGuard;
+
+        msDescription.append(' ');
+        msDescription.append(SvxResId(RID_SVXSTR_A11Y_WITH));
+        msDescription.append(' ');
+
+        msDescription.append(SvxResId(RID_SVXSTR_A11Y_STYLE));
+        msDescription.append('=');
+    }
+
+    try
+    {
+        if (mxSet.is())
+        {
+            uno::Any aValue = mxSet->getPropertyValue("Style");
+            uno::Reference<container::XNamed> xStyle(aValue, uno::UNO_QUERY);
+            if (xStyle.is())
+                msDescription.append(xStyle->getName());
+        }
+        else
+            msDescription.append("<no style>");
+    }
+    catch (const css::beans::UnknownPropertyException&)
+    {
+        msDescription.append("<unknown>");
+    }
+}
+
+OUString DescriptionGenerator::operator()()
+{
+    msDescription.append('.');
+    return msDescription.makeStringAndClear();
+}
+
+void DescriptionGenerator::AddProperty(const OUString& sPropertyName, PropertyType aType)
+{
+    uno::Reference<beans::XPropertyState> xState(mxShape, uno::UNO_QUERY);
+    if (!xState.is()
+        || xState->getPropertyState(sPropertyName) == beans::PropertyState_DEFAULT_VALUE)
+        return;
+
+    if (!mxSet.is())
+        return;
+
+    // Append a separator from previous Properties.
+    if (!mbIsFirstProperty)
+        msDescription.append(',');
+    else
+    {
+        SolarMutexGuard aGuard;
+
+        msDescription.append(' ');
+        msDescription.append(SvxResId(RID_SVXSTR_A11Y_AND));
+        msDescription.append(' ');
+        mbIsFirstProperty = false;
+    }
+
+    // Delegate to type specific property handling.
+    switch (aType)
+    {
+        case PropertyType::Color:
+            AddColor(sPropertyName);
+            break;
+        case PropertyType::Integer:
+            AddInteger(sPropertyName);
+            break;
+    }
+}
+
+void DescriptionGenerator::AppendString(std::u16string_view sString)
+{
+    msDescription.append(sString);
+}
+
+/** Search for the given color in the global color table.  If found append
+    its name to the description.  Otherwise append its RGB tuple.
+*/
+void DescriptionGenerator::AddColor(const OUString& sPropertyName)
+{
+    msDescription.append('=');
+
+    try
+    {
+        tools::Long nValue(0);
+        if (mxSet.is())
+        {
+            uno::Any aValue = mxSet->getPropertyValue(sPropertyName);
+            aValue >>= nValue;
+        }
+
+        msDescription.append(lookUpColorName(nValue));
+    }
+    catch (const css::beans::UnknownPropertyException&)
+    {
+        msDescription.append("<unknown>");
+    }
+}
+
+void DescriptionGenerator::AddInteger(const OUString& sPropertyName)
+{
+    msDescription.append('=');
+
+    try
+    {
+        if (mxSet.is())
+        {
+            uno::Any aValue = mxSet->getPropertyValue(sPropertyName);
+            tools::Long nValue = 0;
+            aValue >>= nValue;
+            msDescription.append(nValue);
+        }
+    }
+    catch (const css::beans::UnknownPropertyException&)
+    {
+        msDescription.append("<unknown>");
+    }
+}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/GraphCtlAccessibleContext.cxx b/svx/source/accessibility/GraphCtlAccessibleContext.cxx
new file mode 100644
index 0000000000..1287f7e9ea
--- /dev/null
+++ b/svx/source/accessibility/GraphCtlAccessibleContext.cxx
@@ -0,0 +1,777 @@
+/* -*- 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 <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/IllegalAccessibleComponentStateException.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <o3tl/safeint.hxx>
+#include <osl/mutex.hxx>
+#include <tools/gen.hxx>
+#include <svtools/colorcfg.hxx>
+#include <comphelper/accessibleeventnotifier.hxx>
+#include <svx/sdrpaintwindow.hxx>
+
+#include <svx/ShapeTypeHandler.hxx>
+#include <svx/AccessibleShapeInfo.hxx>
+#include <GraphCtlAccessibleContext.hxx>
+#include <svx/graphctl.hxx>
+#include <svx/strings.hrc>
+#include <svx/svdpage.hxx>
+#include <svx/dialmgr.hxx>
+#include <svx/sdrhittesthelper.hxx>
+
+// namespaces
+using namespace ::cppu;
+using namespace ::osl;
+using namespace ::accessibility;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::drawing;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::accessibility;
+
+// internal
+/** initialize this component and set default values */
+SvxGraphCtrlAccessibleContext::SvxGraphCtrlAccessibleContext(
+    GraphCtrl&                   rRepr ) :
+
+    SvxGraphCtrlAccessibleContext_Base( m_aMutex ),
+    mpControl( &rRepr ),
+    mpModel (nullptr),
+    mpPage (nullptr),
+    mpView (nullptr),
+    mnClientId( 0 ),
+    mbDisposed( false )
+{
+    if (mpControl != nullptr)
+    {
+        mpModel = mpControl->GetSdrModel();
+        if (mpModel != nullptr)
+            mpPage = mpModel->GetPage( 0 );
+        mpView = mpControl->GetSdrView();
+
+        if( mpModel == nullptr || mpPage == nullptr || mpView == nullptr )
+        {
+            mbDisposed = true;
+            // Set all the pointers to NULL just in case they are used as
+            // a disposed flag.
+            mpModel = nullptr;
+            mpPage = nullptr;
+            mpView = nullptr;
+        }
+    }
+
+    {
+        ::SolarMutexGuard aSolarGuard;
+        msName = SvxResId( RID_SVXSTR_GRAPHCTRL_ACC_NAME );
+        msDescription = SvxResId( RID_SVXSTR_GRAPHCTRL_ACC_DESCRIPTION );
+    }
+
+    maTreeInfo.SetSdrView( mpView );
+    maTreeInfo.SetWindow(mpControl->GetDrawingArea()->get_ref_device().GetOwnerWindow());
+    maTreeInfo.SetViewForwarder( this );
+}
+
+
+/** on destruction, this component is disposed and all dispose listeners
+    are called, except if this component was already disposed */
+SvxGraphCtrlAccessibleContext::~SvxGraphCtrlAccessibleContext()
+{
+    disposing();
+}
+
+
+/** returns the XAccessible interface for a given SdrObject.
+    Multiple calls for the same SdrObject return the same XAccessible.
+*/
+Reference< XAccessible > SvxGraphCtrlAccessibleContext::getAccessible( const SdrObject* pObj )
+{
+    Reference<XAccessible> xAccessibleShape;
+
+    if( pObj )
+    {
+        // see if we already created an XAccessible for the given SdrObject
+        ShapesMapType::const_iterator iter = mxShapes.find( pObj );
+
+        if( iter != mxShapes.end() )
+        {
+            // if we already have one, return it
+            xAccessibleShape = (*iter).second.get();
+        }
+        else
+        {
+            // create a new one and remember in our internal map
+            Reference< XShape > xShape( Reference< XShape >::query( const_cast<SdrObject*>(pObj)->getUnoShape() ) );
+
+            css::uno::Reference<css::accessibility::XAccessible> xParent(getAccessibleParent());
+            AccessibleShapeInfo aShapeInfo (xShape,xParent);
+            // Create accessible object that corresponds to the descriptor's shape.
+            rtl::Reference<AccessibleShape> pAcc(ShapeTypeHandler::Instance().CreateAccessibleObject(
+                aShapeInfo, maTreeInfo));
+            xAccessibleShape = pAcc.get();
+            if (pAcc.is())
+            {
+                pAcc->Init ();
+            }
+            mxShapes[pObj] = pAcc;
+
+            // Create event and inform listeners of the object creation.
+            CommitChange( AccessibleEventId::CHILD, Any( xAccessibleShape ), Any( Reference<XAccessible>() ) );
+        }
+    }
+
+    return xAccessibleShape;
+}
+
+// XAccessible
+Reference< XAccessibleContext > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleContext()
+{
+    return this;
+}
+
+// XAccessibleComponent
+sal_Bool SAL_CALL SvxGraphCtrlAccessibleContext::containsPoint( const awt::Point& rPoint )
+{
+    // no guard -> done in getSize()
+    awt::Size aSize (getSize());
+    return (rPoint.X >= 0)
+        && (rPoint.X < aSize.Width)
+        && (rPoint.Y >= 0)
+        && (rPoint.Y < aSize.Height);
+}
+
+
+Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleAtPoint( const awt::Point& rPoint )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    Reference< XAccessible > xAccessible;
+
+    if( !mpControl )
+    {
+        throw DisposedException();
+    }
+
+    Point aPnt( rPoint.X, rPoint.Y );
+    aPnt = mpControl->GetDrawingArea()->get_ref_device().PixelToLogic(aPnt);
+
+    SdrObject* pObj = nullptr;
+
+    if(mpView && mpView->GetSdrPageView())
+    {
+        pObj = SdrObjListPrimitiveHit(*mpPage, aPnt, {1, 1}, *mpView->GetSdrPageView(), nullptr, false);
+    }
+
+    if( pObj )
+        xAccessible = getAccessible( pObj );
+
+    return xAccessible;
+}
+
+awt::Rectangle SAL_CALL SvxGraphCtrlAccessibleContext::getBounds()
+{
+    const SolarMutexGuard aSolarGuard;
+
+    if (nullptr == mpControl)
+        throw DisposedException();
+
+    const Point         aOutPos;
+    const Size          aOutSize( mpControl->GetOutputSizePixel() );
+    awt::Rectangle      aRet;
+
+    aRet.X = aOutPos.X();
+    aRet.Y = aOutPos.Y();
+    aRet.Width = aOutSize.Width();
+    aRet.Height = aOutSize.Height();
+
+    return aRet;
+}
+
+awt::Point SAL_CALL SvxGraphCtrlAccessibleContext::getLocation()
+{
+    const SolarMutexGuard aSolarGuard;
+
+    if (nullptr == mpControl)
+        throw DisposedException();
+
+    const awt::Rectangle    aRect( getBounds() );
+    awt::Point              aRet;
+
+    aRet.X = aRect.X;
+    aRet.Y = aRect.Y;
+
+    return aRet;
+}
+
+awt::Point SAL_CALL SvxGraphCtrlAccessibleContext::getLocationOnScreen()
+{
+    const SolarMutexGuard aSolarGuard;
+
+    if (nullptr == mpControl)
+        throw DisposedException();
+
+    awt::Point aScreenLoc(0, 0);
+
+    auto xParent(getAccessibleParent());
+    if (xParent)
+    {
+        css::uno::Reference<css::accessibility::XAccessibleContext> xParentContext(xParent->getAccessibleContext());
+        css::uno::Reference<css::accessibility::XAccessibleComponent> xParentComponent(xParentContext, css::uno::UNO_QUERY);
+        OSL_ENSURE( xParentComponent.is(), "ValueSetAcc::getLocationOnScreen: no parent component!" );
+        if ( xParentComponent.is() )
+        {
+            awt::Point aParentScreenLoc( xParentComponent->getLocationOnScreen() );
+            awt::Point aOwnRelativeLoc( getLocation() );
+            aScreenLoc.X = aParentScreenLoc.X + aOwnRelativeLoc.X;
+            aScreenLoc.Y = aParentScreenLoc.Y + aOwnRelativeLoc.Y;
+        }
+    }
+
+    return aScreenLoc;
+}
+
+awt::Size SAL_CALL SvxGraphCtrlAccessibleContext::getSize()
+{
+    const SolarMutexGuard aSolarGuard;
+
+    if (nullptr == mpControl)
+        throw DisposedException();
+
+    const awt::Rectangle    aRect( getBounds() );
+    awt::Size               aRet;
+
+    aRet.Width = aRect.Width;
+    aRet.Height = aRect.Height;
+
+    return aRet;
+}
+
+// XAccessibleContext
+sal_Int64 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleChildCount()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpPage )
+        throw DisposedException();
+
+    return mpPage->GetObjCount();
+}
+
+
+/** returns the SdrObject at index nIndex from the model of this graph */
+SdrObject* SvxGraphCtrlAccessibleContext::getSdrObject( sal_Int64 nIndex )
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpPage )
+        throw DisposedException();
+
+    if( (nIndex < 0) || ( o3tl::make_unsigned(nIndex) >= mpPage->GetObjCount() ) )
+        throw lang::IndexOutOfBoundsException();
+
+    return mpPage->GetObj( nIndex );
+}
+
+
+/** sends an AccessibleEventObject to all added XAccessibleEventListeners */
+void SvxGraphCtrlAccessibleContext::CommitChange (
+    sal_Int16 nEventId,
+    const uno::Any& rNewValue,
+    const uno::Any& rOldValue)
+{
+    AccessibleEventObject aEvent (
+        getXWeak(),
+        nEventId,
+        rNewValue,
+        rOldValue, -1);
+
+    if (mnClientId)
+        comphelper::AccessibleEventNotifier::addEvent( mnClientId, aEvent );
+}
+
+Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleChild( sal_Int64 nIndex )
+{
+    ::SolarMutexGuard aGuard;
+
+    return getAccessible( getSdrObject( nIndex ) );
+}
+
+Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleParent()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpControl )
+        throw DisposedException();
+
+    return mpControl->GetDrawingArea()->get_accessible_parent();
+}
+
+sal_Int64 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleIndexInParent()
+{
+    ::SolarMutexGuard aGuard;
+    //  Use a simple but slow solution for now.  Optimize later.
+
+    //  Iterate over all the parent's children and search for this object.
+    css::uno::Reference<css::accessibility::XAccessible> xParent(getAccessibleParent());
+    if (xParent.is())
+    {
+        Reference< XAccessibleContext > xParentContext( xParent->getAccessibleContext() );
+        if( xParentContext.is() )
+        {
+            sal_Int64 nChildCount = xParentContext->getAccessibleChildCount();
+            for( sal_Int64 i = 0 ; i < nChildCount ; ++i )
+            {
+                Reference< XAccessible > xChild( xParentContext->getAccessibleChild( i ) );
+                if( xChild.is() )
+                {
+                    Reference< XAccessibleContext > xChildContext = xChild->getAccessibleContext();
+                    if( xChildContext == static_cast<XAccessibleContext*>(this) )
+                        return i;
+                }
+            }
+        }
+    }
+
+    //   Return -1 to indicate that this object's parent does not know about the
+    //   object.
+    return -1;
+}
+
+
+sal_Int16 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleRole()
+{
+    return AccessibleRole::PANEL;
+}
+
+
+OUString SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleDescription()
+{
+    ::SolarMutexGuard aGuard;
+    return msDescription;
+}
+
+
+OUString SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleName()
+{
+    ::SolarMutexGuard aGuard;
+    return msName;
+}
+
+
+/** Return empty reference to indicate that the relation set is not
+    supported.
+*/
+Reference< XAccessibleRelationSet > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleRelationSet()
+{
+    return Reference< XAccessibleRelationSet >();
+}
+
+
+sal_Int64 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleStateSet()
+{
+    ::SolarMutexGuard aGuard;
+
+    sal_Int64 nStateSet = 0;
+
+    if ( rBHelper.bDisposed || mbDisposed )
+    {
+        nStateSet |= AccessibleStateType::DEFUNC;
+    }
+    else
+    {
+        nStateSet |= AccessibleStateType::FOCUSABLE;
+        if( mpControl->HasFocus() )
+            nStateSet |= AccessibleStateType::FOCUSED;
+        nStateSet |= AccessibleStateType::OPAQUE;
+        nStateSet |= AccessibleStateType::SHOWING;
+        nStateSet |= AccessibleStateType::VISIBLE;
+    }
+
+    return nStateSet;
+}
+
+
+lang::Locale SAL_CALL SvxGraphCtrlAccessibleContext::getLocale()
+{
+    ::SolarMutexGuard aGuard;
+
+    css::uno::Reference<css::accessibility::XAccessible> xParent(getAccessibleParent());
+    if (xParent.is())
+    {
+        Reference< XAccessibleContext > xParentContext( xParent->getAccessibleContext() );
+        if( xParentContext.is() )
+            return xParentContext->getLocale();
+    }
+
+    //  No parent.  Therefore throw exception to indicate this cluelessness.
+    throw IllegalAccessibleComponentStateException();
+}
+
+// XAccessibleEventListener
+void SAL_CALL SvxGraphCtrlAccessibleContext::addAccessibleEventListener( const Reference< XAccessibleEventListener >& xListener )
+{
+    if (xListener.is())
+    {
+        ::SolarMutexGuard aGuard;
+        if (!mnClientId)
+            mnClientId = comphelper::AccessibleEventNotifier::registerClient( );
+        comphelper::AccessibleEventNotifier::addEventListener( mnClientId, xListener );
+    }
+}
+
+
+void SAL_CALL SvxGraphCtrlAccessibleContext::removeAccessibleEventListener( const Reference< XAccessibleEventListener >& xListener )
+{
+    if (!xListener.is())
+        return;
+
+    ::SolarMutexGuard aGuard;
+
+    sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( mnClientId, 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( mnClientId );
+        mnClientId = 0;
+    }
+}
+
+void SAL_CALL SvxGraphCtrlAccessibleContext::grabFocus()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpControl )
+        throw DisposedException();
+
+    mpControl->GrabFocus();
+}
+
+sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getForeground()
+{
+    svtools::ColorConfig aColorConfig;
+    Color nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor;
+    return static_cast<sal_Int32>(nColor);
+}
+
+sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getBackground()
+{
+    Color nColor = Application::GetSettings().GetStyleSettings().GetWindowColor();
+    return static_cast<sal_Int32>(nColor);
+}
+
+// XServiceInfo
+OUString SAL_CALL SvxGraphCtrlAccessibleContext::getImplementationName()
+{
+    return "com.sun.star.comp.ui.SvxGraphCtrlAccessibleContext";
+}
+
+sal_Bool SAL_CALL SvxGraphCtrlAccessibleContext::supportsService( const OUString& sServiceName )
+{
+    return cppu::supportsService(this, sServiceName);
+}
+
+Sequence< OUString > SAL_CALL SvxGraphCtrlAccessibleContext::getSupportedServiceNames()
+{
+    return { "com.sun.star.accessibility.Accessible",
+             "com.sun.star.accessibility.AccessibleContext",
+             "com.sun.star.drawing.AccessibleGraphControl" };
+}
+
+// XTypeProvider
+Sequence<sal_Int8> SAL_CALL SvxGraphCtrlAccessibleContext::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XServiceName
+OUString SvxGraphCtrlAccessibleContext::getServiceName()
+{
+    return "com.sun.star.accessibility.AccessibleContext";
+}
+
+// XAccessibleSelection
+void SAL_CALL SvxGraphCtrlAccessibleContext::selectAccessibleChild( sal_Int64 nIndex )
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpView )
+        throw DisposedException();
+
+    if (nIndex < 0 || nIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    SdrObject* pObj = getSdrObject( nIndex );
+
+    if( pObj )
+        mpView->MarkObj( pObj, mpView->GetSdrPageView());
+}
+
+
+sal_Bool SAL_CALL SvxGraphCtrlAccessibleContext::isAccessibleChildSelected( sal_Int64 nIndex )
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpView )
+        throw DisposedException();
+
+    if (nIndex < 0 || nIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    return mpView->IsObjMarked( getSdrObject( nIndex ) );
+}
+
+
+void SAL_CALL SvxGraphCtrlAccessibleContext::clearAccessibleSelection()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpView )
+        throw DisposedException();
+
+    mpView->UnmarkAllObj();
+}
+
+
+void SAL_CALL SvxGraphCtrlAccessibleContext::selectAllAccessibleChildren()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpView )
+        throw DisposedException();
+
+    mpView->MarkAllObj();
+}
+
+
+sal_Int64 SAL_CALL SvxGraphCtrlAccessibleContext::getSelectedAccessibleChildCount()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( nullptr == mpView )
+        throw DisposedException();
+
+    const SdrMarkList& rList = mpView->GetMarkedObjectList();
+    return static_cast<sal_Int64>(rList.GetMarkCount());
+}
+
+
+Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getSelectedAccessibleChild( sal_Int64 nIndex )
+{
+    ::SolarMutexGuard aGuard;
+
+    checkChildIndexOnSelection( nIndex );
+
+    Reference< XAccessible > xAccessible;
+
+    const SdrMarkList& rList = mpView->GetMarkedObjectList();
+    SdrObject* pObj = rList.GetMark(static_cast<size_t>(nIndex))->GetMarkedSdrObj();
+    if( pObj )
+        xAccessible = getAccessible( pObj );
+
+    return xAccessible;
+}
+
+
+void SAL_CALL SvxGraphCtrlAccessibleContext::deselectAccessibleChild( sal_Int64 nIndex )
+{
+    ::SolarMutexGuard aGuard;
+
+    checkChildIndexOnSelection( nIndex );
+
+    if( !mpView )
+        return;
+
+    const SdrMarkList& rList = mpView->GetMarkedObjectList();
+
+    SdrObject* pObj = getSdrObject( nIndex );
+    if( !pObj )
+        return;
+
+    SdrMarkList aRefList( rList );
+
+    SdrPageView* pPV = mpView->GetSdrPageView();
+    mpView->UnmarkAllObj( pPV );
+
+    const size_t nCount = aRefList.GetMarkCount();
+    for( size_t nMark = 0; nMark < nCount; ++nMark )
+    {
+        if( aRefList.GetMark(nMark)->GetMarkedSdrObj() != pObj )
+            mpView->MarkObj( aRefList.GetMark(nMark)->GetMarkedSdrObj(), pPV );
+    }
+}
+
+// internals
+void SvxGraphCtrlAccessibleContext::checkChildIndexOnSelection(sal_Int64 nIndex )
+{
+    if( nIndex < 0 || nIndex >= getSelectedAccessibleChildCount() )
+        throw lang::IndexOutOfBoundsException();
+}
+
+
+/** Replace the model, page, and view pointers by the ones provided
+    (explicitly and implicitly).
+*/
+void SvxGraphCtrlAccessibleContext::setModelAndView (
+    SdrModel* pModel,
+    SdrView* pView)
+{
+    ::SolarMutexGuard aGuard;
+
+    mpModel = pModel;
+    if (mpModel != nullptr)
+        mpPage = mpModel->GetPage( 0 );
+    mpView = pView;
+
+    if (mpModel == nullptr || mpPage == nullptr || mpView == nullptr)
+    {
+        mbDisposed = true;
+
+        // Set all the pointers to NULL just in case they are used as
+        // a disposed flag.
+        mpModel = nullptr;
+        mpPage = nullptr;
+        mpView = nullptr;
+    }
+
+    maTreeInfo.SetSdrView (mpView);
+}
+
+
+void SAL_CALL SvxGraphCtrlAccessibleContext::disposing()
+{
+    ::SolarMutexGuard aGuard;
+
+    if( mbDisposed )
+        return;
+
+    mbDisposed = true;
+
+    mpControl = nullptr;       // object dies with representation
+    mpView = nullptr;
+    mpPage = nullptr;
+
+    {
+        for (const auto& rEntry : mxShapes)
+        {
+            rtl::Reference<XAccessible> pAcc(rEntry.second);
+            Reference< XComponent > xComp( pAcc.get(), UNO_QUERY );
+            if( xComp.is() )
+                xComp->dispose();
+        }
+
+        mxShapes.clear();
+    }
+
+    // Send a disposing to all listeners.
+    if ( mnClientId )
+    {
+        comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( mnClientId, *this );
+        mnClientId =  0;
+    }
+}
+
+void SvxGraphCtrlAccessibleContext::Notify( SfxBroadcaster& /*rBC*/, const SfxHint& rHint )
+{
+    if (rHint.GetId() == SfxHintId::ThisIsAnSdrHint)
+    {
+        const SdrHint* pSdrHint = static_cast<const SdrHint*>( &rHint );
+        switch( pSdrHint->GetKind() )
+        {
+            case SdrHintKind::ObjectChange:
+                {
+                    ShapesMapType::iterator iter = mxShapes.find( pSdrHint->GetObject() );
+
+                    if( iter != mxShapes.end() )
+                    {
+                        // if we already have one, return it
+                        rtl::Reference<AccessibleShape> pShape((*iter).second);
+
+                        if( pShape.is() )
+                            pShape->CommitChange( AccessibleEventId::VISIBLE_DATA_CHANGED, uno::Any(), uno::Any(), -1 );
+                    }
+                }
+                break;
+
+            case SdrHintKind::ObjectInserted:
+                CommitChange( AccessibleEventId::CHILD, Any( getAccessible( pSdrHint->GetObject() ) ) , uno::Any());
+                break;
+            case SdrHintKind::ObjectRemoved:
+                CommitChange( AccessibleEventId::CHILD, uno::Any(), Any( getAccessible( pSdrHint->GetObject() ) )  );
+                break;
+            case SdrHintKind::ModelCleared:
+                dispose();
+                break;
+            default:
+                break;
+        }
+    }
+    else
+    {
+        // Has our SdDrawDocument just died?
+        if(rHint.GetId() == SfxHintId::Dying)
+        {
+            dispose();
+        }
+    }
+}
+
+// IAccessibleViewforwarder
+tools::Rectangle SvxGraphCtrlAccessibleContext::GetVisibleArea() const
+{
+    tools::Rectangle aVisArea;
+
+    if( mpView && mpView->PaintWindowCount())
+    {
+        SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(0);
+        aVisArea = pPaintWindow->GetVisibleArea();
+    }
+
+    return aVisArea;
+}
+
+Point SvxGraphCtrlAccessibleContext::LogicToPixel (const Point& rPoint) const
+{
+    if( mpControl )
+    {
+        return mpControl->GetDrawingArea()->get_ref_device().LogicToPixel (rPoint) + mpControl->GetPositionInDialog();
+    }
+    else
+    {
+        return rPoint;
+    }
+}
+
+Size SvxGraphCtrlAccessibleContext::LogicToPixel (const Size& rSize) const
+{
+    if( mpControl )
+        return mpControl->GetDrawingArea()->get_ref_device().LogicToPixel(rSize);
+    else
+        return rSize;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/ShapeTypeHandler.cxx b/svx/source/accessibility/ShapeTypeHandler.cxx
new file mode 100644
index 0000000000..1b169c761a
--- /dev/null
+++ b/svx/source/accessibility/ShapeTypeHandler.cxx
@@ -0,0 +1,306 @@
+/* -*- 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 <svx/ShapeTypeHandler.hxx>
+#include <svx/SvxShapeTypes.hxx>
+#include <svx/AccessibleShapeInfo.hxx>
+#include <vcl/svapp.hxx>
+#include <svx/AccessibleShape.hxx>
+#include <svx/dialmgr.hxx>
+
+#include <svx/svdoashp.hxx>
+
+#include <svx/strings.hrc>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+namespace accessibility {
+
+// Pointer to the shape type handler singleton.
+ShapeTypeHandler* ShapeTypeHandler::instance = nullptr;
+
+
+// Create an empty reference to an accessible object.
+static rtl::Reference<AccessibleShape>
+    CreateEmptyShapeReference (
+        const AccessibleShapeInfo& /*rShapeInfo*/,
+        const AccessibleShapeTreeInfo& /*rShapeTreeInfo*/,
+        ShapeTypeId /*nId*/)
+{
+    return nullptr;
+}
+
+
+ShapeTypeHandler& ShapeTypeHandler::Instance()
+{
+    // Using double check pattern to make sure that exactly one instance of
+    // the shape type handler is instantiated.
+    if (instance == nullptr)
+    {
+        SolarMutexGuard aGuard;
+        if (instance == nullptr)
+        {
+            // Create the single instance of the shape type handler.
+            instance = new ShapeTypeHandler;
+
+            // Register the basic SVX shape types.
+            RegisterDrawShapeTypes ();
+        }
+    }
+
+    return *instance;
+}
+
+
+/** The given service name is first transformed into a slot id that
+    identifies the place of the type descriptor.  From that descriptor the
+    shape type id is returned.
+*/
+ShapeTypeId ShapeTypeHandler::GetTypeId (const OUString& aServiceName) const
+{
+    tServiceNameToSlotId::const_iterator I (maServiceNameToSlotId.find (aServiceName));
+    if (I != maServiceNameToSlotId.end())
+    {
+        return maShapeTypeDescriptorList[I->second].mnShapeTypeId;
+    }
+    else
+        return -1;
+}
+
+
+/** Extract the specified shape's service name and forward the request to
+    the appropriate method.
+*/
+ShapeTypeId ShapeTypeHandler::GetTypeId (const uno::Reference<drawing::XShape>& rxShape) const
+{
+    if (rxShape.is())
+        return GetTypeId (rxShape->getShapeType());
+    else
+        return -1;
+}
+
+
+/** This factory method determines the type descriptor for the type of the
+    given shape, then calls the descriptor's create function, and finally
+    initializes the new object.
+*/
+rtl::Reference<AccessibleShape>
+    ShapeTypeHandler::CreateAccessibleObject (
+        const AccessibleShapeInfo& rShapeInfo,
+        const AccessibleShapeTreeInfo& rShapeTreeInfo) const
+{
+    ShapeTypeId nSlotId (GetSlotId (rShapeInfo.mxShape));
+    rtl::Reference<AccessibleShape> pShape(
+        maShapeTypeDescriptorList[nSlotId].maCreateFunction (
+            rShapeInfo,
+            rShapeTreeInfo,
+            maShapeTypeDescriptorList[nSlotId].mnShapeTypeId));
+    return pShape;
+}
+
+
+/** Create the single instance of this class and initialize its list of
+    type descriptors with an entry of an unknown type.
+*/
+ShapeTypeHandler::ShapeTypeHandler()
+    : maShapeTypeDescriptorList (1)
+{
+    // Make sure that at least the UNKNOWN entry is present.
+    // Resize the list, if necessary, so that the new type can be inserted.
+    maShapeTypeDescriptorList[0].mnShapeTypeId = UNKNOWN_SHAPE_TYPE;
+    maShapeTypeDescriptorList[0].msServiceName = "UNKNOWN_SHAPE_TYPE";
+    maShapeTypeDescriptorList[0].maCreateFunction = CreateEmptyShapeReference;
+    maServiceNameToSlotId[maShapeTypeDescriptorList[0].msServiceName] = 0;
+}
+
+
+ShapeTypeHandler::~ShapeTypeHandler()
+{
+    //  Because this class is a singleton and the only instance, whose
+    //  destructor has just been called, is pointed to from instance,
+    //  we reset the static variable instance, so that further calls to
+    //  getInstance do not return an undefined object but create a new
+    //  singleton.
+    instance = nullptr;
+}
+
+
+void ShapeTypeHandler::AddShapeTypeList (int nDescriptorCount,
+    ShapeTypeDescriptor const aDescriptorList[])
+{
+    SolarMutexGuard aGuard;
+
+    // Determine first id of new type descriptor(s).
+    int nFirstId = maShapeTypeDescriptorList.size();
+
+    // Resize the list, if necessary, so that the types can be inserted.
+    maShapeTypeDescriptorList.resize (nFirstId + nDescriptorCount);
+
+    for (int i=0; i<nDescriptorCount; i++)
+    {
+        // Fill Type descriptor.
+        maShapeTypeDescriptorList[nFirstId+i].mnShapeTypeId = aDescriptorList[i].mnShapeTypeId;
+        maShapeTypeDescriptorList[nFirstId+i].msServiceName = aDescriptorList[i].msServiceName;
+        maShapeTypeDescriptorList[nFirstId+i].maCreateFunction = aDescriptorList[i].maCreateFunction;
+
+        // Update inverse mapping from service name to the descriptor's position.
+        maServiceNameToSlotId[aDescriptorList[i].msServiceName] = nFirstId+i;
+    }
+}
+
+
+tools::Long ShapeTypeHandler::GetSlotId (const OUString& aServiceName) const
+{
+    tServiceNameToSlotId::const_iterator I (maServiceNameToSlotId.find (aServiceName));
+    if (I != maServiceNameToSlotId.end())
+        return I->second;
+    else
+        return 0;
+}
+
+
+// Extract the given shape's service name and forward request to appropriate
+// method.
+tools::Long ShapeTypeHandler::GetSlotId (const uno::Reference<drawing::XShape>& rxShape) const
+{
+    if (rxShape.is())
+        return GetSlotId (rxShape->getShapeType());
+    else
+        return 0;
+}
+
+/// get the accessible base name for an object
+OUString ShapeTypeHandler::CreateAccessibleBaseName (const uno::Reference<drawing::XShape>& rxShape)
+{
+    TranslateId pResourceId;
+    OUString sName;
+
+    switch (ShapeTypeHandler::Instance().GetTypeId (rxShape))
+    {
+      // case DRAWING_3D_POLYGON: was removed in original code in
+      // AccessibleShape::CreateAccessibleBaseName.  See issue 11190 for details.
+      // Id can be removed from SvxShapeTypes.hxx as well.
+        case DRAWING_3D_CUBE:
+            pResourceId = STR_ObjNameSingulCube3d;
+            break;
+        case DRAWING_3D_EXTRUDE:
+            pResourceId = STR_ObjNameSingulExtrude3d;
+            break;
+        case DRAWING_3D_LATHE:
+            pResourceId = STR_ObjNameSingulLathe3d;
+            break;
+        case DRAWING_3D_SCENE:
+            pResourceId = STR_ObjNameSingulScene3d;
+            break;
+        case DRAWING_3D_SPHERE:
+            pResourceId = STR_ObjNameSingulSphere3d;
+            break;
+        case DRAWING_CAPTION:
+            pResourceId = STR_ObjNameSingulCAPTION;
+            break;
+        case DRAWING_CLOSED_BEZIER:
+            pResourceId = STR_ObjNameSingulPATHFILL;
+            break;
+        case DRAWING_CLOSED_FREEHAND:
+            pResourceId = STR_ObjNameSingulFREEFILL;
+            break;
+        case DRAWING_CONNECTOR:
+            pResourceId = STR_ObjNameSingulEDGE;
+            break;
+        case DRAWING_CONTROL:
+            pResourceId = STR_ObjNameSingulUno;
+            break;
+        case DRAWING_ELLIPSE:
+            pResourceId = STR_ObjNameSingulCIRCE;
+            break;
+        case DRAWING_GROUP:
+            pResourceId = STR_ObjNameSingulGRUP;
+            break;
+        case DRAWING_LINE:
+            pResourceId = STR_ObjNameSingulLINE;
+            break;
+        case DRAWING_MEASURE:
+            pResourceId = STR_ObjNameSingulMEASURE;
+            break;
+        case DRAWING_OPEN_BEZIER:
+            pResourceId = STR_ObjNameSingulPATHLINE;
+            break;
+        case DRAWING_OPEN_FREEHAND:
+            pResourceId = STR_ObjNameSingulFREELINE;
+            break;
+        case DRAWING_PAGE:
+            pResourceId = STR_ObjNameSingulPAGE;
+            break;
+        case DRAWING_POLY_LINE:
+            pResourceId = STR_ObjNameSingulPLIN;
+            break;
+        case DRAWING_POLY_LINE_PATH:
+            pResourceId = STR_ObjNameSingulPLIN;
+            break;
+        case DRAWING_POLY_POLYGON:
+            pResourceId = STR_ObjNameSingulPOLY;
+            break;
+        case DRAWING_POLY_POLYGON_PATH:
+            pResourceId = STR_ObjNameSingulPOLY;
+            break;
+        case DRAWING_RECTANGLE:
+            pResourceId = STR_ObjNameSingulRECT;
+            break;
+        case DRAWING_CUSTOM:
+            pResourceId = STR_ObjNameSingulCUSTOMSHAPE;
+
+            if (SdrObject* pSdrObject = SdrObject::getSdrObjectFromXShape(rxShape))
+            {
+                if (auto pCustomShape = dynamic_cast<SdrObjCustomShape*>(pSdrObject))
+                {
+                    if (pCustomShape->IsTextPath())
+                        pResourceId = STR_ObjNameSingulFONTWORK;
+                    else
+                    {
+                        pResourceId = {};
+                        sName = pCustomShape->GetCustomShapeName();
+                    }
+                }
+            }
+            break;
+        case DRAWING_TEXT:
+            pResourceId = STR_ObjNameSingulTEXT;
+            break;
+        default:
+            pResourceId = {};
+            sName = "UnknownAccessibleShape";
+            if (rxShape.is())
+                sName += ": " + rxShape->getShapeType();
+            break;
+    }
+
+    if (pResourceId)
+    {
+        SolarMutexGuard aGuard;
+        sName = SvxResId(pResourceId);
+    }
+
+    return sName;
+}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/SvxShapeTypes.cxx b/svx/source/accessibility/SvxShapeTypes.cxx
new file mode 100644
index 0000000000..b02a153a4c
--- /dev/null
+++ b/svx/source/accessibility/SvxShapeTypes.cxx
@@ -0,0 +1,165 @@
+/* -*- 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 <svx/SvxShapeTypes.hxx>
+#include <svx/AccessibleShape.hxx>
+#include <svx/AccessibleGraphicShape.hxx>
+#include <svx/AccessibleOLEShape.hxx>
+#include <svx/AccessibleControlShape.hxx>
+#include <svx/ShapeTypeHandler.hxx>
+#include <AccessibleTableShape.hxx>
+
+namespace accessibility {
+
+static rtl::Reference<AccessibleShape> CreateSvxAccessibleShape (
+    const AccessibleShapeInfo& rShapeInfo,
+    const AccessibleShapeTreeInfo& rShapeTreeInfo,
+    ShapeTypeId nId)
+{
+    switch (nId)
+    {
+        case DRAWING_3D_CUBE:
+        case DRAWING_3D_EXTRUDE:
+        case DRAWING_3D_LATHE:
+        case DRAWING_3D_SCENE:
+        case DRAWING_3D_SPHERE:
+        case DRAWING_CAPTION:
+        case DRAWING_CLOSED_BEZIER:
+        case DRAWING_CLOSED_FREEHAND:
+        case DRAWING_CONNECTOR:
+        case DRAWING_ELLIPSE:
+        case DRAWING_GROUP:
+        case DRAWING_LINE:
+        case DRAWING_MEASURE:
+        case DRAWING_OPEN_BEZIER:
+        case DRAWING_OPEN_FREEHAND:
+        case DRAWING_PAGE:
+        case DRAWING_POLY_POLYGON:
+        case DRAWING_POLY_LINE:
+        case DRAWING_POLY_POLYGON_PATH:
+        case DRAWING_POLY_LINE_PATH:
+        case DRAWING_RECTANGLE:
+        case DRAWING_TEXT:
+        // Default accessibility shape for
+        // css::drawing::CustomShape (#i37790#)
+        case DRAWING_CUSTOM:
+        // Default accessibility shape for
+        // css::drawing::MediaShape (#i85429#)
+        case DRAWING_MEDIA:
+            return new AccessibleShape (rShapeInfo, rShapeTreeInfo);
+
+        case DRAWING_CONTROL:
+            return new AccessibleControlShape (rShapeInfo, rShapeTreeInfo);
+
+        case DRAWING_GRAPHIC_OBJECT:
+            return new AccessibleGraphicShape (rShapeInfo, rShapeTreeInfo);
+
+        case DRAWING_APPLET:
+        case DRAWING_FRAME:
+        case DRAWING_OLE:
+        case DRAWING_PLUGIN:
+            return new AccessibleOLEShape (rShapeInfo, rShapeTreeInfo);
+
+        case DRAWING_TABLE:
+            return new AccessibleTableShape( rShapeInfo, rShapeTreeInfo );
+
+        default:
+            return nullptr;
+    }
+}
+
+void RegisterDrawShapeTypes()
+{
+    /** List of shape type descriptors corresponding to the
+        <type>SvxShapeTypes</type> enum.
+    */
+    static ShapeTypeDescriptor const aSvxShapeTypeList[] = {
+        ShapeTypeDescriptor ( DRAWING_TEXT, "com.sun.star.drawing.TextShape",
+            CreateSvxAccessibleShape),
+        ShapeTypeDescriptor (DRAWING_RECTANGLE, "com.sun.star.drawing.RectangleShape",
+            CreateSvxAccessibleShape),
+        ShapeTypeDescriptor ( DRAWING_ELLIPSE, "com.sun.star.drawing.EllipseShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_CONTROL, "com.sun.star.drawing.ControlShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_CONNECTOR, "com.sun.star.drawing.ConnectorShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_MEASURE, "com.sun.star.drawing.MeasureShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_LINE, "com.sun.star.drawing.LineShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_POLY_POLYGON, "com.sun.star.drawing.PolyPolygonShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_POLY_LINE, "com.sun.star.drawing.PolyLineShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_OPEN_BEZIER, "com.sun.star.drawing.OpenBezierShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_CLOSED_BEZIER, "com.sun.star.drawing.ClosedBezierShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_OPEN_FREEHAND, "com.sun.star.drawing.OpenFreeHandShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_CLOSED_FREEHAND, "com.sun.star.drawing.ClosedFreeHandShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_POLY_POLYGON_PATH, "com.sun.star.drawing.PolyPolygonPathShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_POLY_LINE_PATH, "com.sun.star.drawing.PolyLinePathShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_GRAPHIC_OBJECT, "com.sun.star.drawing.GraphicObjectShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_GROUP, "com.sun.star.drawing.GroupShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_OLE, "com.sun.star.drawing.OLE2Shape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_PAGE, "com.sun.star.drawing.PageShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_CAPTION, "com.sun.star.drawing.CaptionShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_FRAME, "com.sun.star.drawing.FrameShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_PLUGIN, "com.sun.star.drawing.PluginShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_APPLET, "com.sun.star.drawing.AppletShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_3D_SCENE, "com.sun.star.drawing.Shape3DSceneObject",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_3D_CUBE, "com.sun.star.drawing.Shape3DCubeObject",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_3D_SPHERE, "com.sun.star.drawing.Shape3DSphereObject",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_3D_LATHE, "com.sun.star.drawing.Shape3DLatheObject",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_3D_EXTRUDE, "com.sun.star.drawing.Shape3DExtrudeObject",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_CUSTOM, "com.sun.star.drawing.CustomShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_TABLE, "com.sun.star.drawing.TableShape",
+            CreateSvxAccessibleShape ),
+        ShapeTypeDescriptor ( DRAWING_MEDIA, "com.sun.star.drawing.MediaShape",
+            CreateSvxAccessibleShape ),
+
+    };
+
+    // Crash while inserting callout with activated accessibility (#i37790#)
+    ShapeTypeHandler::Instance().AddShapeTypeList ( DRAWING_END, aSvxShapeTypeList);
+}
+
+} // end of namespace accessibility
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/charmapacc.cxx b/svx/source/accessibility/charmapacc.cxx
new file mode 100644
index 0000000000..b5a0544d75
--- /dev/null
+++ b/svx/source/accessibility/charmapacc.cxx
@@ -0,0 +1,586 @@
+/* -*- 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/settings.hxx>
+#include <vcl/svapp.hxx>
+#include <stdio.h>
+#include <svx/charmap.hxx>
+#include <charmapacc.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <o3tl/temporary.hxx>
+#include <osl/interlck.h>
+#include <svx/dialmgr.hxx>
+#include <svx/strings.hrc>
+#include <comphelper/accessiblecontexthelper.hxx>
+#include <comphelper/types.hxx>
+
+namespace svx
+{
+    using namespace comphelper;
+    using namespace ::com::sun::star;
+    using namespace ::com::sun::star::uno;
+    using namespace ::com::sun::star::lang;
+    using namespace ::com::sun::star::accessibility;
+
+SvxShowCharSetItem::SvxShowCharSetItem( SvxShowCharSet& rParent,SvxShowCharSetAcc*  _pParent,sal_uInt16 _nPos ) :
+    mrParent( rParent )
+    ,mnId( _nPos )
+    ,m_pParent(_pParent)
+{
+}
+
+SvxShowCharSetItem::~SvxShowCharSetItem()
+{
+    if ( m_xItem.is() )
+    {
+        m_xItem->ParentDestroyed();
+        m_xItem.clear();
+    }
+}
+
+rtl::Reference<SvxShowCharSetItemAcc> SvxShowCharSetItem::GetAccessible()
+{
+    if( !m_xItem.is() )
+    {
+        m_xItem = new SvxShowCharSetItemAcc( this );
+    }
+
+    return m_xItem;
+}
+
+SvxShowCharSetAcc::SvxShowCharSetAcc(SvxShowCharSet* pParent)
+    : m_pParent(pParent)
+{
+    osl_atomic_increment(&m_refCount);
+    {
+        lateInit(this);
+    }
+    osl_atomic_decrement(&m_refCount);
+}
+
+SvxShowCharSetAcc::~SvxShowCharSetAcc()
+{
+    ensureDisposed();
+}
+
+void SAL_CALL SvxShowCharSetAcc::disposing()
+{
+    OAccessibleSelectionHelper::disposing();
+    for (auto& rxChild : m_aChildren)
+        rxChild->dispose();
+
+    m_aChildren.clear();
+    m_pParent = nullptr;
+}
+
+bool SvxShowCharSetAcc::implIsSelected( sal_Int64 nAccessibleChildIndex )
+{
+    if (!m_pParent)
+        return false;
+
+    if (nAccessibleChildIndex < 0 || nAccessibleChildIndex >= getAccessibleChildCount())
+        throw IndexOutOfBoundsException();
+
+    return m_pParent->IsSelected(sal::static_int_cast<sal_uInt16>(nAccessibleChildIndex));
+}
+
+// select the specified child => watch for special ChildIndexes (ACCESSIBLE_SELECTION_CHILD_xxx)
+void SvxShowCharSetAcc::implSelect(sal_Int64 nAccessibleChildIndex, bool bSelect)
+{
+    if (!m_pParent)
+        return;
+
+    if (nAccessibleChildIndex < 0 || nAccessibleChildIndex >= getAccessibleChildCount())
+        throw IndexOutOfBoundsException();
+
+    if (bSelect)
+        m_pParent->SelectIndex(nAccessibleChildIndex, true);
+    else
+        m_pParent->DeSelect();
+}
+
+css::awt::Rectangle SvxShowCharSetAcc::implGetBounds()
+{
+    awt::Rectangle aRet;
+
+    if (m_pParent)
+    {
+        const Point   aOutPos;//( m_pParent->GetPosPixel() );
+        Size          aOutSize( m_pParent->GetOutputSizePixel());
+
+        aRet.X = aOutPos.X();
+        aRet.Y = aOutPos.Y();
+        aRet.Width = aOutSize.Width();
+        aRet.Height = aOutSize.Height();
+    }
+
+    return aRet;
+}
+
+sal_Int64 SAL_CALL SvxShowCharSetAcc::getAccessibleChildCount()
+{
+    OExternalLockGuard aGuard( this );
+
+    return m_pParent->getMaxCharCount();
+}
+
+uno::Reference< css::accessibility::XAccessible > SAL_CALL SvxShowCharSetAcc::getAccessibleChild( sal_Int64 i )
+{
+    OExternalLockGuard aGuard( this );
+
+    rtl::Reference< SvxShowCharSetItemAcc >  xRet;
+    SvxShowCharSetItem* pItem = m_pParent->ImplGetItem( static_cast< sal_uInt16 >( i ) );
+
+    if( !pItem )
+        throw lang::IndexOutOfBoundsException();
+
+    pItem->m_pParent = this;
+    xRet = pItem->GetAccessible();
+    m_aChildren.push_back(xRet);
+
+    return xRet;
+}
+
+uno::Reference< css::accessibility::XAccessible > SAL_CALL SvxShowCharSetAcc::getAccessibleParent()
+{
+    OExternalLockGuard aGuard( this );
+
+    if (m_pParent)
+        return m_pParent->getAccessibleParent();
+    return uno::Reference<css::accessibility::XAccessible>();
+}
+
+sal_Int16 SAL_CALL SvxShowCharSetAcc::getAccessibleRole()
+{
+    return css::accessibility::AccessibleRole::TABLE;
+}
+
+OUString SAL_CALL SvxShowCharSetAcc::getAccessibleDescription()
+{
+    OExternalLockGuard aGuard( this );
+    return SvxResId( RID_SVXSTR_CHARACTER_SELECTION );
+}
+
+
+OUString SAL_CALL SvxShowCharSetAcc::getAccessibleName()
+{
+    OExternalLockGuard aGuard( this );
+
+    return SvxResId( RID_SVXSTR_CHAR_SEL_DESC );
+}
+
+
+uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL SvxShowCharSetAcc::getAccessibleRelationSet()
+{
+    return uno::Reference< css::accessibility::XAccessibleRelationSet >();
+}
+
+
+sal_Int64 SAL_CALL SvxShowCharSetAcc::getAccessibleStateSet()
+{
+    OExternalLockGuard aGuard( this );
+
+    sal_Int64 nStateSet = 0;
+
+    if (m_pParent)
+    {
+        // SELECTABLE
+        nStateSet |= AccessibleStateType::FOCUSABLE;
+        if (m_pParent->HasFocus())
+        {
+            nStateSet |= AccessibleStateType::FOCUSED;
+            nStateSet |= AccessibleStateType::ACTIVE;
+        }
+        if (m_pParent->IsEnabled())
+        {
+            nStateSet |= AccessibleStateType::ENABLED;
+            nStateSet |= AccessibleStateType::SENSITIVE;
+        }
+        if (m_pParent->IsVisible())
+            nStateSet |= AccessibleStateType::VISIBLE;
+
+        nStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;
+    }
+
+    return nStateSet;
+}
+
+
+uno::Reference< css::accessibility::XAccessible > SAL_CALL SvxShowCharSetAcc::getAccessibleAtPoint( const awt::Point& aPoint )
+{
+    OExternalLockGuard aGuard( this );
+
+    uno::Reference< css::accessibility::XAccessible >    xRet;
+    const sal_uInt16 nItemId = sal::static_int_cast<sal_uInt16>(
+        m_pParent->PixelToMapIndex( Point( aPoint.X, aPoint.Y ) ));
+
+    if( sal_uInt16(-1) != nItemId )
+    {
+        SvxShowCharSetItem* pItem = m_pParent->ImplGetItem( nItemId );
+        xRet = pItem->GetAccessible();
+    }
+    return xRet;
+}
+
+void SAL_CALL SvxShowCharSetAcc::grabFocus()
+{
+    OExternalLockGuard aGuard( this );
+
+    m_pParent->GrabFocus();
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getAccessibleRowCount(  )
+{
+    return ((getAccessibleChildCount()-1) / COLUMN_COUNT) + 1;
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getAccessibleColumnCount(  )
+{
+    return COLUMN_COUNT;
+}
+
+OUString SAL_CALL SvxShowCharSetAcc::getAccessibleRowDescription( sal_Int32 /*nRow*/ )
+{
+    return OUString();
+}
+
+OUString SAL_CALL SvxShowCharSetAcc::getAccessibleColumnDescription( sal_Int32 /*nColumn*/ )
+{
+    return OUString();
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getAccessibleRowExtentAt( sal_Int32 /*nRow*/, sal_Int32 /*nColumn*/ )
+{
+    return 1;
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getAccessibleColumnExtentAt( sal_Int32 /*nRow*/, sal_Int32 /*nColumn*/ )
+{
+    return 1;
+}
+
+Reference< XAccessibleTable > SAL_CALL SvxShowCharSetAcc::getAccessibleRowHeaders(  )
+{
+    return Reference< XAccessibleTable >();
+}
+
+Reference< XAccessibleTable > SAL_CALL SvxShowCharSetAcc::getAccessibleColumnHeaders(  )
+{
+    return Reference< XAccessibleTable >();
+}
+
+Sequence< sal_Int32 > SAL_CALL SvxShowCharSetAcc::getSelectedAccessibleRows(  )
+{
+    OExternalLockGuard aGuard( this );
+
+    return { SvxShowCharSet::GetRowPos(m_pParent->GetSelectIndexId()) };
+}
+
+Sequence< sal_Int32 > SAL_CALL SvxShowCharSetAcc::getSelectedAccessibleColumns(  )
+{
+    OExternalLockGuard aGuard( this );
+
+    return { SvxShowCharSet::GetColumnPos(m_pParent->GetSelectIndexId()) };
+}
+
+sal_Bool SAL_CALL SvxShowCharSetAcc::isAccessibleRowSelected( sal_Int32 nRow )
+{
+    OExternalLockGuard aGuard( this );
+
+    return SvxShowCharSet::GetRowPos(m_pParent->GetSelectIndexId()) == nRow;
+}
+
+sal_Bool SAL_CALL SvxShowCharSetAcc::isAccessibleColumnSelected( sal_Int32 nColumn )
+{
+    OExternalLockGuard aGuard( this );
+    ensureAlive();
+    return SvxShowCharSet::GetColumnPos(m_pParent->GetSelectIndexId()) == nColumn;
+}
+
+Reference< XAccessible > SAL_CALL SvxShowCharSetAcc::getAccessibleCellAt( sal_Int32 nRow, sal_Int32 nColumn )
+{
+    OExternalLockGuard aGuard( this );
+
+    svx::SvxShowCharSetItem* pItem = m_pParent->ImplGetItem(
+        sal::static_int_cast<sal_uInt16>(getAccessibleIndex(nRow,nColumn) ));
+    if ( !pItem  )
+        throw IndexOutOfBoundsException();
+    return pItem->GetAccessible();
+}
+
+Reference< XAccessible > SAL_CALL SvxShowCharSetAcc::getAccessibleCaption(  )
+{
+    return Reference< XAccessible >();
+}
+
+Reference< XAccessible > SAL_CALL SvxShowCharSetAcc::getAccessibleSummary(  )
+{
+    return Reference< XAccessible >();
+}
+
+sal_Bool SAL_CALL SvxShowCharSetAcc::isAccessibleSelected( sal_Int32 nRow, sal_Int32 nColumn )
+{
+    OExternalLockGuard aGuard( this );
+
+    return m_pParent->GetSelectIndexId() == getAccessibleIndex(nRow,nColumn);
+}
+
+sal_Int64 SAL_CALL SvxShowCharSetAcc::getAccessibleIndex( sal_Int32 nRow, sal_Int32 nColumn )
+{
+    return (static_cast<sal_Int64>(nRow) * COLUMN_COUNT) + nColumn;
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getAccessibleRow( sal_Int64 nChildIndex )
+{
+    OExternalLockGuard aGuard( this );
+
+    return SvxShowCharSet::GetRowPos(sal::static_int_cast<sal_uInt16>(nChildIndex));
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getAccessibleColumn( sal_Int64 nChildIndex )
+{
+    OExternalLockGuard aGuard( this );
+
+    return SvxShowCharSet::GetColumnPos(sal::static_int_cast<sal_uInt16>(nChildIndex));
+}
+
+
+SvxShowCharSetItemAcc::SvxShowCharSetItemAcc( SvxShowCharSetItem* pParent ) : mpParent( pParent )
+{
+    OSL_ENSURE(pParent,"NO parent supplied!");
+    osl_atomic_increment(&m_refCount);
+    { // #b6211265 #
+        lateInit(this);
+    }
+    osl_atomic_decrement(&m_refCount);
+}
+
+
+SvxShowCharSetItemAcc::~SvxShowCharSetItemAcc()
+{
+    ensureDisposed();
+}
+
+void SvxShowCharSetItemAcc::ParentDestroyed()
+{
+    const ::osl::MutexGuard aGuard( GetMutex() );
+    mpParent = nullptr;
+}
+
+sal_Int64 SAL_CALL SvxShowCharSetItemAcc::getAccessibleChildCount()
+{
+    return 0;
+}
+
+
+uno::Reference< css::accessibility::XAccessible > SAL_CALL SvxShowCharSetItemAcc::getAccessibleChild( sal_Int64 /*i*/ )
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+
+uno::Reference< css::accessibility::XAccessible > SAL_CALL SvxShowCharSetItemAcc::getAccessibleParent()
+{
+    OExternalLockGuard aGuard( this );
+
+    return mpParent->m_pParent;
+}
+
+
+sal_Int16 SAL_CALL SvxShowCharSetItemAcc::getAccessibleRole()
+{
+    return css::accessibility::AccessibleRole::TABLE_CELL;
+}
+
+
+OUString SAL_CALL SvxShowCharSetItemAcc::getAccessibleDescription()
+{
+    OExternalLockGuard aGuard( this );
+
+    OUString sDescription;
+
+    const OUString aCharStr( mpParent->maText);
+    const sal_UCS4 c = aCharStr.iterateCodePoints( &o3tl::temporary(sal_Int32(0)) );
+    const int tmp_len = (c < 0x10000) ? 4 : 6;
+    char buf[16] = "0x0000";
+    sal_UCS4 c_Shifted = c;
+    for( int i = 0; i < tmp_len; ++i )
+    {
+        char h = static_cast<char>(c_Shifted & 0x0F);
+        buf[tmp_len+1-i] = (h > 9) ? (h - 10 + 'A') : (h + '0');
+        c_Shifted >>= 4;
+    }
+    if( c < 256 )
+        snprintf( buf+6, 10, " (%" SAL_PRIuUINT32 ")", c );
+
+    sDescription = SvxResId( RID_SVXSTR_CHARACTER_CODE )
+                 + " "
+                 + OUString(buf, strlen(buf), RTL_TEXTENCODING_ASCII_US);
+
+    return sDescription;
+}
+
+
+OUString SAL_CALL SvxShowCharSetItemAcc::getAccessibleName()
+{
+    OExternalLockGuard aGuard( this );
+
+    OUString aRet;
+
+    if( mpParent )
+    {
+        aRet = mpParent->maText;
+
+        if (aRet.isEmpty())
+            aRet = getAccessibleDescription();
+    }
+
+    return aRet;
+}
+
+
+uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL SvxShowCharSetItemAcc::getAccessibleRelationSet()
+{
+    return uno::Reference< css::accessibility::XAccessibleRelationSet >();
+}
+
+
+sal_Int64 SAL_CALL SvxShowCharSetItemAcc::getAccessibleStateSet()
+{
+    OExternalLockGuard aGuard( this );
+
+    sal_Int64 nStateSet = 0;
+
+    if( mpParent )
+    {
+        if (mpParent->mrParent.IsEnabled())
+        {
+            nStateSet |= css::accessibility::AccessibleStateType::ENABLED;
+            // SELECTABLE
+            nStateSet |= css::accessibility::AccessibleStateType::SELECTABLE;
+            nStateSet |= css::accessibility::AccessibleStateType::FOCUSABLE;
+        }
+
+        // SELECTED
+        if( mpParent->mrParent.GetSelectIndexId() == mpParent->mnId )
+        {
+            nStateSet |= css::accessibility::AccessibleStateType::SELECTED;
+            if (mpParent->mrParent.HasChildFocus())
+                nStateSet |= css::accessibility::AccessibleStateType::FOCUSED;
+        }
+        if ( mpParent->mnId >= mpParent->mrParent.FirstInView() && mpParent->mnId <= mpParent->mrParent.LastInView() )
+        {
+            nStateSet |= AccessibleStateType::VISIBLE;
+            nStateSet |= AccessibleStateType::SHOWING;
+        }
+        nStateSet |= AccessibleStateType::TRANSIENT;
+    }
+
+    return nStateSet;
+}
+
+
+sal_Int32 SvxShowCharSetItemAcc::getAccessibleActionCount()
+{
+    return 1;
+}
+
+
+sal_Bool SvxShowCharSetItemAcc::doAccessibleAction ( sal_Int32 nIndex )
+{
+    OExternalLockGuard aGuard( this );
+
+    if( nIndex == 0 )
+    {
+        mpParent->mrParent.OutputIndex( mpParent->mnId );
+        return true;
+    }
+    throw IndexOutOfBoundsException();
+}
+
+
+OUString SvxShowCharSetItemAcc::getAccessibleActionDescription ( sal_Int32 nIndex )
+{
+    if( nIndex == 0 )
+        return "press";
+    throw IndexOutOfBoundsException();
+}
+
+
+Reference< css::accessibility::XAccessibleKeyBinding > SvxShowCharSetItemAcc::getAccessibleActionKeyBinding( sal_Int32 nIndex )
+{
+    if( nIndex == 0 )
+        return Reference< css::accessibility::XAccessibleKeyBinding >();
+    throw IndexOutOfBoundsException();
+}
+
+
+void SAL_CALL SvxShowCharSetItemAcc::grabFocus()
+{
+    // nothing to do
+}
+
+awt::Rectangle SvxShowCharSetItemAcc::implGetBounds(  )
+{
+    awt::Rectangle      aRet;
+
+    if( mpParent )
+    {
+        tools::Rectangle   aRect( mpParent->maRect );
+        tools::Rectangle   aParentRect(Point(), mpParent->mrParent.GetOutputSizePixel());
+
+        aRect.Intersection( aParentRect );
+
+        aRet.X = aRect.Left();
+        aRet.Y = aRect.Top();
+        aRet.Width = aRect.GetWidth();
+        aRet.Height = aRect.GetHeight();
+    }
+
+    return aRet;
+}
+
+uno::Reference< css::accessibility::XAccessible > SAL_CALL SvxShowCharSetItemAcc::getAccessibleAtPoint( const awt::Point& /*aPoint*/ )
+{
+    return uno::Reference< css::accessibility::XAccessible >();
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getForeground(  )
+{
+    OExternalLockGuard aGuard( this );
+
+    //see SvxShowCharSet::InitSettings
+    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+    return static_cast<sal_Int32>(rStyleSettings.GetDialogTextColor());
+}
+
+sal_Int32 SAL_CALL SvxShowCharSetAcc::getBackground(  )
+{
+    OExternalLockGuard aGuard( this  );
+
+    //see SvxShowCharSet::InitSettings
+    const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
+    return static_cast<sal_Int32>(rStyleSettings.GetWindowColor());
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/lookupcolorname.cxx b/svx/source/accessibility/lookupcolorname.cxx
new file mode 100644
index 0000000000..373dae4693
--- /dev/null
+++ b/svx/source/accessibility/lookupcolorname.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 <sal/config.h>
+
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/container/XNameContainer.hpp>
+#include <com/sun/star/drawing/ColorTable.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <comphelper/processfactory.hxx>
+#include <rtl/ustring.hxx>
+#include <vcl/svapp.hxx>
+
+#include "lookupcolorname.hxx"
+#include <unordered_map>
+
+namespace
+{
+class ColorNameMap
+{
+public:
+    ColorNameMap();
+    ColorNameMap(const ColorNameMap&) = delete;
+    ColorNameMap& operator=(const ColorNameMap&) = delete;
+
+    OUString lookUp(tools::Long color) const;
+
+private:
+    typedef std::unordered_map<tools::Long, OUString> Map;
+
+    Map map_;
+};
+
+ColorNameMap::ColorNameMap()
+{
+    css::uno::Sequence<OUString> aNames;
+    css::uno::Reference<css::container::XNameAccess> xNA;
+
+    try
+    {
+        // Create color table in which to look up the given color.
+        css::uno::Reference<css::container::XNameContainer> xColorTable
+            = css::drawing::ColorTable::create(comphelper::getProcessComponentContext());
+
+        // Get list of color names in order to iterate over the color table.
+
+        // Lock the solar mutex here as workaround for missing lock in
+        // called function.
+        SolarMutexGuard aGuard;
+        xNA = xColorTable;
+        aNames = xColorTable->getElementNames();
+    }
+    catch (css::uno::RuntimeException const&)
+    {
+        // When an exception occurred then we have an empty name sequence
+        // and the loop below is not entered.
+    }
+
+    // Fill the map to convert from numerical color values to names.
+    if (!xNA.is())
+        return;
+
+    for (const auto& rName : std::as_const(aNames))
+    {
+        // Get the numerical value for the i-th color name.
+        try
+        {
+            css::uno::Any aColor = xNA->getByName(rName);
+            tools::Long nColor = 0;
+            aColor >>= nColor;
+            map_[nColor] = rName;
+        }
+        catch (css::uno::RuntimeException const&)
+        {
+            // Ignore the exception: the color who lead to the exception
+            // is not included into the map.
+        }
+    }
+}
+
+OUString ColorNameMap::lookUp(tools::Long color) const
+{
+    Map::const_iterator i(map_.find(color));
+    if (i != map_.end())
+    {
+        return i->second;
+    }
+    // Did not find the given color; return its RGB tuple representation:
+    return "#" + OUString::number(color, 16);
+}
+}
+
+namespace accessibility
+{
+OUString lookUpColorName(tools::Long color)
+{
+    static ColorNameMap theColorNameMap;
+    return theColorNameMap.lookUp(color);
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/lookupcolorname.hxx b/svx/source/accessibility/lookupcolorname.hxx
new file mode 100644
index 0000000000..0d752c0fab
--- /dev/null
+++ b/svx/source/accessibility/lookupcolorname.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_SVX_SOURCE_ACCESSIBILITY_LOOKUPCOLORNAME_HXX
+#define INCLUDED_SVX_SOURCE_ACCESSIBILITY_LOOKUPCOLORNAME_HXX
+
+#include <sal/config.h>
+
+#include <rtl/ustring.hxx>
+#include <tools/long.hxx>
+
+namespace accessibility
+{
+/** This is a color name lookup targeted to be used by the accessibility
+    <type>DescriptionGenerator</type> class.  It encapsulates a
+    <type>com.sun.star.drawing.ColorTable</type> and provides an inverse look
+    up of color names for given numerical color descriptions (the RGB values
+    encoded as an integer).
+
+    <p>The implementation uses as singleton so that the
+    <type>com.sun.star.drawing.ColorTable</type> object needs to be created
+    only once.  That singleton instance for now lives until the application
+    terminates.  However, the color table from which it takes its values may
+    change during this time.  Reacting to these changes remains a task for the
+    future.</p>
+
+    @param nColor
+    This integer is the sum of the 8 Bit red value shifted left 16 Bits, the
+    green value shifted left 8 Bits, and the unshifted blue value.
+
+    @return
+    The returned string is either the color name of the specified color or,
+    when no name exists, a string of the form "#RRGGBB" with two hexadecimal
+    digits for each color component.
+*/
+OUString lookUpColorName(tools::Long color);
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/svxpixelctlaccessiblecontext.cxx b/svx/source/accessibility/svxpixelctlaccessiblecontext.cxx
new file mode 100644
index 0000000000..8c0e0ca1c0
--- /dev/null
+++ b/svx/source/accessibility/svxpixelctlaccessiblecontext.cxx
@@ -0,0 +1,444 @@
+/* -*- 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 <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <toolkit/helper/convert.hxx>
+#include <utility>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <osl/mutex.hxx>
+#include <tools/debug.hxx>
+#include <tools/gen.hxx>
+
+#include <svx/dlgctrl.hxx>
+
+#include <svxpixelctlaccessiblecontext.hxx>
+
+using namespace ::cppu;
+using namespace ::osl;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::accessibility;
+
+SvxPixelCtlAccessible::SvxPixelCtlAccessible(SvxPixelCtl* pControl)
+    : mpPixelCtl(pControl)
+{
+}
+
+SvxPixelCtlAccessible::~SvxPixelCtlAccessible()
+{
+    ensureDisposed();
+}
+
+uno::Reference< XAccessibleContext > SvxPixelCtlAccessible::getAccessibleContext(  )
+{
+    return this;
+}
+
+sal_Int64 SvxPixelCtlAccessible::getAccessibleChildCount(  )
+{
+    return SvxPixelCtl::GetSquares();
+}
+uno::Reference< XAccessible > SvxPixelCtlAccessible::getAccessibleChild( sal_Int64 i )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    if ( i < 0 || i >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+    Reference< XAccessible > xChild;
+    if (mpPixelCtl)
+        xChild = CreateChild(i, mpPixelCtl->IndexToPoint(i));
+    return xChild;
+}
+
+uno::Reference< XAccessible > SvxPixelCtlAccessible::getAccessibleParent(  )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    if (mpPixelCtl)
+        return mpPixelCtl->getAccessibleParent();
+    return uno::Reference<css::accessibility::XAccessible>();
+}
+
+sal_Int16 SvxPixelCtlAccessible::getAccessibleRole(  )
+{
+    return AccessibleRole::LIST;
+}
+
+OUString SvxPixelCtlAccessible::getAccessibleDescription(  )
+{
+
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return mpPixelCtl ? mpPixelCtl->GetAccessibleDescription() : "";
+}
+
+OUString SvxPixelCtlAccessible::getAccessibleName(  )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return mpPixelCtl ? mpPixelCtl->GetAccessibleName() : "";
+}
+
+Reference< XAccessibleRelationSet > SAL_CALL SvxPixelCtlAccessible::getAccessibleRelationSet()
+{
+    if (mpPixelCtl)
+        return mpPixelCtl->get_accessible_relation_set();
+    return uno::Reference<css::accessibility::XAccessibleRelationSet>();
+}
+
+sal_Int64 SvxPixelCtlAccessible::getAccessibleStateSet(  )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    sal_Int64 nStateSet = 0;
+
+    if (mpPixelCtl)
+    {
+        nStateSet |=
+            AccessibleStateType::FOCUSABLE |
+            AccessibleStateType::SELECTABLE |
+            AccessibleStateType::SHOWING |
+            AccessibleStateType::VISIBLE |
+            AccessibleStateType::OPAQUE;
+        if (mpPixelCtl->IsEnabled())
+            nStateSet |= AccessibleStateType::ENABLED;
+        if (mpPixelCtl->HasFocus())
+            nStateSet |= AccessibleStateType::FOCUSED;
+        nStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;
+    }
+
+    return nStateSet;
+}
+
+uno::Reference<XAccessible > SAL_CALL SvxPixelCtlAccessible::getAccessibleAtPoint (
+        const awt::Point& rPoint)
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    Reference< XAccessible >    xRet;
+
+    if (mpPixelCtl)
+    {
+        tools::Long nIndex = mpPixelCtl->PointToIndex(Point(rPoint.X, rPoint.Y));
+        xRet = CreateChild(nIndex, mpPixelCtl->IndexToPoint(nIndex));
+    }
+
+    return xRet;
+}
+
+awt::Rectangle SvxPixelCtlAccessible::implGetBounds()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    awt::Rectangle aRet;
+
+    if (mpPixelCtl)
+    {
+        const Point   aOutPos;
+        Size          aOutSize(mpPixelCtl->GetOutputSizePixel());
+
+        aRet.X = aOutPos.X();
+        aRet.Y = aOutPos.Y();
+        aRet.Width = aOutSize.Width();
+        aRet.Height = aOutSize.Height();
+    }
+
+    return aRet;
+}
+
+void SvxPixelCtlAccessible::grabFocus(  )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    if (mpPixelCtl)
+        mpPixelCtl->GrabFocus();
+}
+
+sal_Int32 SvxPixelCtlAccessible::getForeground(  )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    //see SvxPixelCtl::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetLabelTextColor());
+}
+
+sal_Int32 SvxPixelCtlAccessible::getBackground(  )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    //see SvxPixelCtl::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetDialogColor());
+}
+
+void SvxPixelCtlAccessible::implSelect(sal_Int64 nChildIndex, bool bSelect)
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    if ( nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    if (!mpPixelCtl)
+        return;
+
+    tools::Long nIndex = mpPixelCtl->ShowPosition(mpPixelCtl->IndexToPoint(nChildIndex));
+    NotifyChild(nIndex, bSelect, false);
+}
+
+bool SvxPixelCtlAccessible::implIsSelected(sal_Int64 nChildIndex)
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    if (!mpPixelCtl)
+        return false;
+
+    return mpPixelCtl->GetFocusPosIndex() == nChildIndex;
+}
+
+void SAL_CALL SvxPixelCtlAccessible::disposing()
+{
+    ::osl::MutexGuard aGuard(m_aMutex);
+    OAccessibleSelectionHelper::disposing();
+    m_xCurChild.clear();
+    mpPixelCtl = nullptr;
+}
+
+void SvxPixelCtlAccessible::NotifyChild(tools::Long nIndex,bool bSelect ,bool bCheck)
+{
+    DBG_ASSERT( !(!bSelect && !bCheck),"" );//non is false
+
+    rtl::Reference<SvxPixelCtlAccessibleChild> pChild = m_xCurChild;
+    if (pChild && pChild->getAccessibleIndexInParent() == nIndex )
+    {
+        if (bSelect)
+        {
+            pChild->SelectChild(true);
+        }
+        if (bCheck)
+        {
+            pChild->ChangePixelColorOrBG(mpPixelCtl->GetBitmapPixel(sal_uInt16(nIndex)) != 0);
+            pChild->CheckChild();
+        }
+        return;
+    }
+    rtl::Reference<SvxPixelCtlAccessibleChild> xNewChild = CreateChild(nIndex, mpPixelCtl->IndexToPoint(nIndex));
+    DBG_ASSERT(xNewChild,"Child Must be Valid");
+
+    Any aNewValue,aOldValue;
+    aNewValue <<= uno::Reference<XAccessible>(xNewChild);
+    NotifyAccessibleEvent(AccessibleEventId::ACTIVE_DESCENDANT_CHANGED, aOldValue, aNewValue);
+
+    if (bSelect)
+    {
+        if (pChild)
+        {
+            pChild->SelectChild(false);
+        }
+        xNewChild->SelectChild(true);
+    }
+    if (bCheck)
+    {
+        xNewChild->CheckChild();
+    }
+    m_xCurChild = xNewChild;
+}
+
+rtl::Reference<SvxPixelCtlAccessibleChild> SvxPixelCtlAccessible::CreateChild (tools::Long nIndex,Point mPoint)
+{
+    bool bPixelColorOrBG = mpPixelCtl->GetBitmapPixel(sal_uInt16(nIndex)) != 0;
+    Size size(mpPixelCtl->GetWidth() / SvxPixelCtl::GetLineCount(), mpPixelCtl->GetHeight() / SvxPixelCtl::GetLineCount());
+    rtl::Reference<SvxPixelCtlAccessibleChild> xChild = new SvxPixelCtlAccessibleChild(*mpPixelCtl,
+                bPixelColorOrBG,
+                tools::Rectangle(mPoint,size),
+                this,
+                nIndex);
+
+    return xChild;
+}
+
+void SvxPixelCtlAccessibleChild::CheckChild()
+{
+    Any aChecked;
+    aChecked <<= AccessibleStateType::CHECKED;
+
+    if (m_bPixelColorOrBG)//Current Child State
+    {
+        NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, Any(), aChecked);
+    }
+    else
+    {
+        NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aChecked, Any());
+    }
+}
+
+void SvxPixelCtlAccessibleChild::SelectChild( bool bSelect)
+{
+    Any aSelected;
+    aSelected <<= AccessibleStateType::SELECTED;
+
+    if (bSelect)
+    {
+        NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, Any(), aSelected);
+    }
+    else
+    {
+        NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aSelected, Any());
+    }
+}
+
+SvxPixelCtlAccessibleChild::SvxPixelCtlAccessibleChild( SvxPixelCtl& rWindow, bool bPixelColorOrBG,
+    const tools::Rectangle& rBoundingBox, rtl::Reference<SvxPixelCtlAccessible> xParent,
+    tools::Long nIndexInParent)
+    : mrParentWindow( rWindow )
+    , mxParent(std::move(xParent))
+    , m_bPixelColorOrBG(bPixelColorOrBG)
+    , maBoundingBox( rBoundingBox )
+    , mnIndexInParent( nIndexInParent )
+{
+}
+
+SvxPixelCtlAccessibleChild::~SvxPixelCtlAccessibleChild()
+{
+    ensureDisposed();
+}
+
+// XAccessible
+uno::Reference< XAccessibleContext> SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleContext()
+{
+    return this;
+}
+
+uno::Reference< XAccessible > SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleAtPoint( const awt::Point& )
+{
+    return uno::Reference< XAccessible >();
+}
+
+void SAL_CALL SvxPixelCtlAccessibleChild::grabFocus()
+{
+}
+
+sal_Int32 SvxPixelCtlAccessibleChild::getForeground()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return mxParent.is() ? mxParent->getForeground() : -1;
+}
+
+sal_Int32 SvxPixelCtlAccessibleChild::getBackground()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return mxParent.is() ? mxParent->getBackground() : -1;
+}
+
+// XAccessibleContext
+sal_Int64 SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleChildCount()
+{
+    return 0;
+}
+
+uno::Reference< XAccessible > SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleChild( sal_Int64 )
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+uno::Reference< XAccessible > SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleParent()
+{
+    return mxParent;
+}
+
+sal_Int16 SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleRole()
+{
+    return AccessibleRole::CHECK_BOX;
+}
+
+OUString SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleDescription()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    return  GetName();
+}
+
+OUString SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleName()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return  GetName();
+}
+
+/** Return empty uno::Reference to indicate that the relation set is not
+    supported.
+*/
+uno::Reference<XAccessibleRelationSet> SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleRelationSet()
+{
+    return uno::Reference< XAccessibleRelationSet >();
+}
+
+sal_Int64 SAL_CALL SvxPixelCtlAccessibleChild::getAccessibleStateSet()
+{
+    ::osl::MutexGuard                       aGuard( m_aMutex );
+    sal_Int64 nStateSet = 0;
+
+    if (!rBHelper.bDisposed)
+    {
+        nStateSet |= AccessibleStateType::TRANSIENT;
+        nStateSet |= AccessibleStateType::ENABLED;
+        nStateSet |= AccessibleStateType::OPAQUE;
+        nStateSet |= AccessibleStateType::SELECTABLE;
+        nStateSet |= AccessibleStateType::SHOWING;
+        nStateSet |= AccessibleStateType::VISIBLE;
+
+        tools::Long nIndex = mrParentWindow.GetFocusPosIndex();
+        if ( nIndex == mnIndexInParent)
+        {
+            nStateSet |= AccessibleStateType::SELECTED;
+        }
+        if (mrParentWindow.GetBitmapPixel(sal_uInt16(mnIndexInParent)))
+        {
+            nStateSet |= AccessibleStateType::CHECKED;
+        }
+    }
+    else
+        nStateSet |= AccessibleStateType::DEFUNC;
+
+    return nStateSet;
+}
+
+void SAL_CALL SvxPixelCtlAccessibleChild::disposing()
+{
+    OAccessibleComponentHelper::disposing();
+    mxParent.clear();
+}
+
+awt::Rectangle SvxPixelCtlAccessibleChild::implGetBounds()
+{
+    // no guard necessary, because no one changes maBoundingBox after creating it
+    return AWTRectangle(maBoundingBox);
+}
+
+OUString SvxPixelCtlAccessibleChild::GetName() const
+{
+    sal_Int32 nXIndex = mnIndexInParent % SvxPixelCtl::GetLineCount();
+    sal_Int32 nYIndex = mnIndexInParent / SvxPixelCtl::GetLineCount();
+
+    OUString str = "("
+                 + OUString::number(nXIndex)
+                 + ","
+                 + OUString::number(nYIndex)
+                 + ")";
+    return str;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/accessibility/svxrectctaccessiblecontext.cxx b/svx/source/accessibility/svxrectctaccessiblecontext.cxx
new file mode 100644
index 0000000000..45360e6c86
--- /dev/null
+++ b/svx/source/accessibility/svxrectctaccessiblecontext.cxx
@@ -0,0 +1,635 @@
+/* -*- 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 <svxrectctaccessiblecontext.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <toolkit/helper/convert.hxx>
+#include <utility>
+#include <vcl/svapp.hxx>
+#include <osl/mutex.hxx>
+#include <tools/debug.hxx>
+#include <tools/gen.hxx>
+#include <sal/log.hxx>
+#include <vcl/settings.hxx>
+#include <svx/strings.hrc>
+#include <svx/dlgctrl.hxx>
+#include <svx/dialmgr.hxx>
+#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
+#include <unotools/accessiblerelationsethelper.hxx>
+
+using namespace ::cppu;
+using namespace ::osl;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::accessibility;
+
+using namespace ::com::sun::star::lang;
+
+#define MAX_NUM_OF_CHILDREN   9
+#define NOCHILDSELECTED     -1
+
+// internal
+namespace
+{
+    struct ChildIndexToPointData
+    {
+        TranslateId pResIdName;
+        TranslateId pResIdDescr;
+        RectPoint  ePoint;
+    };
+}
+
+
+static const ChildIndexToPointData* IndexToPoint( tools::Long nIndex )
+{
+    DBG_ASSERT( nIndex < 9 && nIndex >= 0, "-IndexToPoint(): invalid child index! You have been warned..." );
+
+    // corners are counted from left to right and top to bottom
+    static const ChildIndexToPointData  pCornerData[] =
+    {                                                                   // index
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_LT, RID_SVXSTR_RECTCTL_ACC_CHLD_LT, RectPoint::LT },    //  0
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_MT, RID_SVXSTR_RECTCTL_ACC_CHLD_MT, RectPoint::MT },    //  1
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_RT, RID_SVXSTR_RECTCTL_ACC_CHLD_RT, RectPoint::RT },    //  2
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_LM, RID_SVXSTR_RECTCTL_ACC_CHLD_LM, RectPoint::LM },    //  3
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_MM, RID_SVXSTR_RECTCTL_ACC_CHLD_MM, RectPoint::MM },    //  4
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_RM, RID_SVXSTR_RECTCTL_ACC_CHLD_RM, RectPoint::RM },    //  5
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_LB, RID_SVXSTR_RECTCTL_ACC_CHLD_LB, RectPoint::LB },    //  6
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_MB, RID_SVXSTR_RECTCTL_ACC_CHLD_MB, RectPoint::MB },    //  7
+        {   RID_SVXSTR_RECTCTL_ACC_CHLD_RB, RID_SVXSTR_RECTCTL_ACC_CHLD_RB, RectPoint::RB }     //  8
+    };
+
+    return pCornerData + nIndex;
+}
+
+
+static tools::Long PointToIndex( RectPoint ePoint )
+{
+    tools::Long    nRet( static_cast<tools::Long>(ePoint) );
+    // corner control
+    // corners are counted from left to right and top to bottom
+    DBG_ASSERT( int(RectPoint::LT) == 0 && int(RectPoint::MT) == 1 && int(RectPoint::RT) == 2 && int(RectPoint::LM) == 3 && int(RectPoint::MM) == 4 && int(RectPoint::RM) == 5 &&
+                int(RectPoint::LB) == 6 && int(RectPoint::MB) == 7 && int(RectPoint::RB) == 8, "*PointToIndex(): unexpected enum value!" );
+
+    nRet = static_cast<tools::Long>(ePoint);
+
+    return nRet;
+}
+
+SvxRectCtlAccessibleContext::SvxRectCtlAccessibleContext(SvxRectCtl* pRepr)
+    : mpRepr(pRepr)
+    , mnSelectedChild(NOCHILDSELECTED)
+{
+    {
+        ::SolarMutexGuard aSolarGuard;
+        msName = SvxResId( RID_SVXSTR_RECTCTL_ACC_CORN_NAME );
+        msDescription = SvxResId( RID_SVXSTR_RECTCTL_ACC_CORN_DESCR );
+    }
+
+    mvChildren.resize(MAX_NUM_OF_CHILDREN);
+}
+
+SvxRectCtlAccessibleContext::~SvxRectCtlAccessibleContext()
+{
+    ensureDisposed();
+}
+
+Reference< XAccessible > SAL_CALL SvxRectCtlAccessibleContext::getAccessibleAtPoint( const awt::Point& rPoint )
+{
+    ::osl::MutexGuard           aGuard( m_aMutex );
+
+    Reference< XAccessible >    xRet;
+
+    tools::Long nChild = mpRepr ? PointToIndex(mpRepr->GetApproxRPFromPixPt(rPoint)) : NOCHILDSELECTED;
+
+    if (nChild != NOCHILDSELECTED)
+        xRet = getAccessibleChild( nChild );
+
+    return xRet;
+}
+
+// XAccessibleContext
+sal_Int64 SAL_CALL SvxRectCtlAccessibleContext::getAccessibleChildCount()
+{
+    return SvxRectCtl::NO_CHILDREN;
+}
+
+Reference< XAccessible > SAL_CALL SvxRectCtlAccessibleContext::getAccessibleChild( sal_Int64 nIndex )
+{
+    checkChildIndex( nIndex );
+
+    Reference< XAccessible > xChild(mvChildren[ nIndex ]);
+    if( !xChild.is() )
+    {
+        ::SolarMutexGuard aSolarGuard;
+
+        ::osl::MutexGuard   aGuard( m_aMutex );
+
+        xChild = mvChildren[ nIndex ].get();
+
+        if (!xChild.is() && mpRepr)
+        {
+            const ChildIndexToPointData*    p = IndexToPoint( nIndex );
+
+            tools::Rectangle       aFocusRect( mpRepr->CalculateFocusRectangle( p->ePoint ) );
+
+            rtl::Reference<SvxRectCtlChildAccessibleContext> pChild = new SvxRectCtlChildAccessibleContext(this,
+                    SvxResId(p->pResIdName), SvxResId(p->pResIdDescr), aFocusRect, nIndex );
+            mvChildren[ nIndex ] = pChild;
+            xChild = pChild;
+
+            // set actual state
+            if( mnSelectedChild == nIndex )
+                pChild->setStateChecked( true );
+        }
+    }
+
+    return xChild;
+}
+
+Reference< XAccessible > SAL_CALL SvxRectCtlAccessibleContext::getAccessibleParent()
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if (mpRepr)
+        return mpRepr->getAccessibleParent();
+    return uno::Reference<css::accessibility::XAccessible>();
+}
+
+sal_Int16 SAL_CALL SvxRectCtlAccessibleContext::getAccessibleRole()
+{
+    return AccessibleRole::PANEL;
+}
+
+OUString SAL_CALL SvxRectCtlAccessibleContext::getAccessibleDescription()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return msDescription + " Please use arrow key to selection.";
+}
+
+OUString SAL_CALL SvxRectCtlAccessibleContext::getAccessibleName()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    return msName;
+}
+
+/** Return empty reference to indicate that the relation set is not
+    supported.
+*/
+Reference< XAccessibleRelationSet > SAL_CALL SvxRectCtlAccessibleContext::getAccessibleRelationSet()
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    if (mpRepr)
+        return mpRepr->get_accessible_relation_set();
+    return uno::Reference<css::accessibility::XAccessibleRelationSet>();
+}
+
+sal_Int64 SAL_CALL SvxRectCtlAccessibleContext::getAccessibleStateSet()
+{
+    ::osl::MutexGuard                       aGuard( m_aMutex );
+    sal_Int64 nStateSet = 0;
+
+    if (mpRepr)
+    {
+        nStateSet |= AccessibleStateType::ENABLED;
+        nStateSet |= AccessibleStateType::FOCUSABLE;
+        if( mpRepr->HasFocus() )
+            nStateSet |= AccessibleStateType::FOCUSED;
+        nStateSet |= AccessibleStateType::OPAQUE;
+
+        nStateSet |= AccessibleStateType::SHOWING;
+
+        if( mpRepr->IsVisible() )
+            nStateSet |= AccessibleStateType::VISIBLE;
+    }
+    else
+        nStateSet |= AccessibleStateType::DEFUNC;
+
+    return nStateSet;
+}
+
+void SAL_CALL SvxRectCtlAccessibleContext::grabFocus()
+{
+    ::SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    if (mpRepr)
+        mpRepr->GrabFocus();
+}
+
+sal_Int32 SvxRectCtlAccessibleContext::getForeground()
+{
+    ::SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    //see SvxRectCtl::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetLabelTextColor());
+}
+
+sal_Int32 SvxRectCtlAccessibleContext::getBackground(  )
+{
+    ::SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    //see SvxRectCtl::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetDialogColor());
+}
+
+// XAccessibleSelection
+void SvxRectCtlAccessibleContext::implSelect(sal_Int64 nIndex, bool bSelect)
+{
+    ::SolarMutexGuard aSolarGuard;
+
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    checkChildIndex( nIndex );
+
+    const ChildIndexToPointData*    pData = IndexToPoint( nIndex );
+
+    DBG_ASSERT(pData, "SvxRectCtlAccessibleContext::selectAccessibleChild(): this is an impossible state! Or at least should be...");
+
+    if (mpRepr)
+    {
+        if (bSelect)
+        {
+            // this does all what is needed, including the change of the child's state!
+            mpRepr->SetActualRP( pData->ePoint );
+        }
+        else
+        {
+            SAL_WARN( "svx", "SvxRectCtlAccessibleContext::clearAccessibleSelection() is not possible!" );
+        }
+    }
+}
+
+bool SvxRectCtlAccessibleContext::implIsSelected( sal_Int64 nIndex )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    checkChildIndex( nIndex );
+
+    return nIndex == mnSelectedChild;
+}
+
+// internals
+void SvxRectCtlAccessibleContext::checkChildIndex( sal_Int64 nIndex )
+{
+    if( nIndex < 0 || nIndex >= getAccessibleChildCount() )
+        throw lang::IndexOutOfBoundsException();
+}
+
+void SvxRectCtlAccessibleContext::FireChildFocus( RectPoint eButton )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    tools::Long nNew = PointToIndex( eButton );
+    tools::Long nNumOfChildren = getAccessibleChildCount();
+    if( nNew < nNumOfChildren )
+    {
+        // select new child
+        mnSelectedChild = nNew;
+        if( nNew != NOCHILDSELECTED )
+        {
+            if( mvChildren[ nNew ].is() )
+                mvChildren[ nNew ]->FireFocusEvent();
+        }
+        else
+        {
+            Any                             aOld;
+            Any                             aNew;
+            aNew <<= AccessibleStateType::FOCUSED;
+            NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOld, aNew);
+        }
+    }
+    else
+        mnSelectedChild = NOCHILDSELECTED;
+}
+
+void SvxRectCtlAccessibleContext::selectChild( tools::Long nNew )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+    if( nNew == mnSelectedChild )
+        return;
+
+    tools::Long    nNumOfChildren = getAccessibleChildCount();
+    if( nNew < nNumOfChildren )
+    {   // valid index
+        if( mnSelectedChild != NOCHILDSELECTED )
+        {   // deselect old selected child if one is selected
+            SvxRectCtlChildAccessibleContext* pChild = mvChildren[ mnSelectedChild ].get();
+            if( pChild )
+                pChild->setStateChecked( false );
+        }
+
+        // select new child
+        mnSelectedChild = nNew;
+
+        if( nNew != NOCHILDSELECTED )
+        {
+            if( mvChildren[ nNew ].is() )
+                mvChildren[ nNew ]->setStateChecked( true );
+        }
+    }
+    else
+        mnSelectedChild = NOCHILDSELECTED;
+}
+
+void SvxRectCtlAccessibleContext::selectChild(RectPoint eButton )
+{
+    // no guard -> is done in next selectChild
+    selectChild(PointToIndex( eButton ));
+}
+
+void SAL_CALL SvxRectCtlAccessibleContext::disposing()
+{
+    ::osl::MutexGuard aGuard(m_aMutex);
+    OAccessibleSelectionHelper::disposing();
+    for (auto & rxChild : mvChildren)
+    {
+        if( rxChild.is() )
+            rxChild->dispose();
+    }
+    mvChildren.clear();
+    mpRepr = nullptr;
+}
+
+awt::Rectangle SvxRectCtlAccessibleContext::implGetBounds()
+{
+    ::SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    awt::Rectangle aRet;
+
+    if (mpRepr)
+    {
+        const Point   aOutPos;
+        Size          aOutSize(mpRepr->GetOutputSizePixel());
+
+        aRet.X = aOutPos.X();
+        aRet.Y = aOutPos.Y();
+        aRet.Width = aOutSize.Width();
+        aRet.Height = aOutSize.Height();
+    }
+
+    return aRet;
+}
+
+SvxRectCtlChildAccessibleContext::SvxRectCtlChildAccessibleContext(
+    const Reference<XAccessible>&   rxParent,
+    OUString               aName,
+    OUString               aDescription,
+    const tools::Rectangle& rBoundingBox,
+    tools::Long nIndexInParent )
+    : msDescription(std::move( aDescription ))
+    , msName(std::move( aName ))
+    , mxParent(rxParent)
+    , maBoundingBox( rBoundingBox )
+    , mnIndexInParent( nIndexInParent )
+    , mbIsChecked( false )
+{
+}
+
+SvxRectCtlChildAccessibleContext::~SvxRectCtlChildAccessibleContext()
+{
+    ensureDisposed();
+}
+
+Reference< XAccessible > SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleAtPoint( const awt::Point& /*rPoint*/ )
+{
+    return Reference< XAccessible >();
+}
+
+void SAL_CALL SvxRectCtlChildAccessibleContext::grabFocus()
+{
+}
+
+sal_Int32 SvxRectCtlChildAccessibleContext::getForeground(  )
+{
+    ::SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    //see SvxRectCtl::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetLabelTextColor());
+}
+
+sal_Int32 SvxRectCtlChildAccessibleContext::getBackground(  )
+{
+    ::SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    //see SvxRectCtl::Paint
+    const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
+    return sal_Int32(rStyles.GetDialogColor());
+}
+
+// XAccessibleContext
+sal_Int64 SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleChildCount()
+{
+    return 0;
+}
+
+Reference< XAccessible > SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleChild( sal_Int64 /*nIndex*/ )
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+Reference< XAccessible > SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleParent()
+{
+    return mxParent;
+}
+
+sal_Int16 SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleRole()
+{
+    return AccessibleRole::RADIO_BUTTON;
+}
+
+OUString SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleDescription()
+{
+    return msDescription;
+}
+
+OUString SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleName()
+{
+    return msName;
+}
+
+/** Return empty reference to indicate that the relation set is not
+    supported.
+*/
+Reference<XAccessibleRelationSet> SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleRelationSet()
+{
+    rtl::Reference<utl::AccessibleRelationSetHelper> pRelationSetHelper = new utl::AccessibleRelationSetHelper;
+    if( mxParent.is() )
+    {
+        uno::Sequence< uno::Reference< uno::XInterface > > aSequence { mxParent };
+        pRelationSetHelper->AddRelation( css::accessibility::AccessibleRelation( css::accessibility::AccessibleRelationType::MEMBER_OF, aSequence ) );
+    }
+
+    return pRelationSetHelper;
+}
+
+sal_Int64 SAL_CALL SvxRectCtlChildAccessibleContext::getAccessibleStateSet()
+{
+    ::osl::MutexGuard                       aGuard( m_aMutex );
+    sal_Int64 nStateSet = 0;
+
+    if (!rBHelper.bDisposed)
+    {
+        if( mbIsChecked )
+        {
+            nStateSet |= AccessibleStateType::CHECKED;
+        }
+
+        nStateSet |= AccessibleStateType::ENABLED;
+        nStateSet |= AccessibleStateType::SENSITIVE;
+        nStateSet |= AccessibleStateType::OPAQUE;
+        nStateSet |= AccessibleStateType::SELECTABLE;
+        nStateSet |= AccessibleStateType::SHOWING;
+        nStateSet |= AccessibleStateType::VISIBLE;
+    }
+    else
+        nStateSet |= AccessibleStateType::DEFUNC;
+
+    return nStateSet;
+}
+
+// XAccessibleValue
+Any SAL_CALL SvxRectCtlChildAccessibleContext::getCurrentValue()
+{
+    Any aRet;
+    aRet <<= ( mbIsChecked? 1.0 : 0.0 );
+    return aRet;
+}
+
+sal_Bool SAL_CALL SvxRectCtlChildAccessibleContext::setCurrentValue( const Any& /*aNumber*/ )
+{
+    return false;
+}
+
+Any SAL_CALL SvxRectCtlChildAccessibleContext::getMaximumValue()
+{
+    Any aRet;
+    aRet <<= 1.0;
+    return aRet;
+}
+
+Any SAL_CALL SvxRectCtlChildAccessibleContext::getMinimumValue()
+{
+    Any aRet;
+    aRet <<= 0.0;
+    return aRet;
+}
+
+Any SAL_CALL SvxRectCtlChildAccessibleContext::getMinimumIncrement()
+{
+    Any aRet;
+    aRet <<= 1.0;
+    return aRet;
+}
+
+
+// XAccessibleAction
+
+
+sal_Int32 SvxRectCtlChildAccessibleContext::getAccessibleActionCount( )
+{
+    return 1;
+}
+
+
+sal_Bool SvxRectCtlChildAccessibleContext::doAccessibleAction ( sal_Int32 nIndex )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    if ( nIndex < 0 || nIndex >= getAccessibleActionCount() )
+        throw IndexOutOfBoundsException();
+
+    Reference<XAccessibleSelection> xSelection( mxParent, UNO_QUERY);
+
+    xSelection->selectAccessibleChild(mnIndexInParent);
+
+    return true;
+}
+
+
+OUString SvxRectCtlChildAccessibleContext::getAccessibleActionDescription ( sal_Int32 nIndex )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    if ( nIndex < 0 || nIndex >= getAccessibleActionCount() )
+        throw IndexOutOfBoundsException();
+
+    return "select";
+}
+
+
+Reference< XAccessibleKeyBinding > SvxRectCtlChildAccessibleContext::getAccessibleActionKeyBinding( sal_Int32 nIndex )
+{
+    ::osl::MutexGuard   aGuard( m_aMutex );
+
+    if ( nIndex < 0 || nIndex >= getAccessibleActionCount() )
+        throw IndexOutOfBoundsException();
+
+    return Reference< XAccessibleKeyBinding >();
+}
+
+void SAL_CALL SvxRectCtlChildAccessibleContext::disposing()
+{
+    OAccessibleComponentHelper::disposing();
+    mxParent.clear();
+}
+
+awt::Rectangle SvxRectCtlChildAccessibleContext::implGetBounds(  )
+{
+    // no guard necessary, because no one changes maBoundingBox after creating it
+    return AWTRectangle(maBoundingBox);
+}
+
+void SvxRectCtlChildAccessibleContext::setStateChecked( bool bChecked )
+{
+    if( mbIsChecked == bChecked )
+        return;
+
+    mbIsChecked = bChecked;
+
+    Any                             aOld;
+    Any                             aNew;
+    Any&                            rMod = bChecked? aNew : aOld;
+
+    //Send the STATE_CHANGED(Focused) event to accessible
+    rMod <<= AccessibleStateType::FOCUSED;
+    NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOld, aNew);
+
+    rMod <<= AccessibleStateType::CHECKED;
+
+    NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOld, aNew);
+}
+
+void SvxRectCtlChildAccessibleContext::FireFocusEvent()
+{
+    Any                             aOld;
+    Any                             aNew;
+    aNew <<= AccessibleStateType::FOCUSED;
+    NotifyAccessibleEvent(AccessibleEventId::STATE_CHANGED, aOld, aNew);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */