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

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

1 files changed, 967 insertions, 0 deletions

diff --git a/svtools/source/control/valueacc.cxx b/svtools/source/control/valueacc.cxx
new file mode 100644
index 0000000000..2497d4513b
--- /dev/null
+++ b/svtools/source/control/valueacc.cxx
@@ -0,0 +1,967 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <sal/log.hxx>
+#include <tools/debug.hxx>
+#include <comphelper/diagnose_ex.hxx>
+#include <svtools/valueset.hxx>
+#include "valueimp.hxx"
+#include <comphelper/servicehelper.hxx>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+
+using namespace ::com::sun::star;
+
+
+ValueSetItem::ValueSetItem( ValueSet& rParent )
+    : mrParent(rParent)
+    , mpData(nullptr)
+    , mxAcc()
+    , mnId(0)
+    , meType(VALUESETITEM_NONE)
+    , mbVisible(true)
+{
+}
+
+
+ValueSetItem::~ValueSetItem()
+{
+    if( mxAcc.is() )
+    {
+        mxAcc->ParentDestroyed();
+    }
+}
+
+uno::Reference< accessibility::XAccessible > ValueSetItem::GetAccessible( bool bIsTransientChildrenDisabled )
+{
+    if( !mxAcc.is() )
+        mxAcc = new ValueItemAcc( this, bIsTransientChildrenDisabled );
+
+    return mxAcc;
+}
+
+ValueItemAcc::ValueItemAcc( ValueSetItem* pParent, bool bIsTransientChildrenDisabled ) :
+    mpParent( pParent ),
+    mbIsTransientChildrenDisabled( bIsTransientChildrenDisabled )
+{
+}
+
+ValueItemAcc::~ValueItemAcc()
+{
+}
+
+void ValueItemAcc::ParentDestroyed()
+{
+    std::scoped_lock aGuard( maMutex );
+    mpParent = nullptr;
+}
+
+ValueItemAcc* ValueItemAcc::getImplementation( const uno::Reference< uno::XInterface >& rxData )
+    noexcept
+{
+    return dynamic_cast<ValueItemAcc*>(rxData.get());
+}
+
+
+uno::Reference< accessibility::XAccessibleContext > SAL_CALL ValueItemAcc::getAccessibleContext()
+{
+    return this;
+}
+
+
+sal_Int64 SAL_CALL ValueItemAcc::getAccessibleChildCount()
+{
+    return 0;
+}
+
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueItemAcc::getAccessibleChild( sal_Int64 )
+{
+    throw lang::IndexOutOfBoundsException();
+}
+
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueItemAcc::getAccessibleParent()
+{
+    const SolarMutexGuard aSolarGuard;
+    uno::Reference< accessibility::XAccessible >    xRet;
+
+    if( mpParent )
+        xRet = mpParent->mrParent.mxAccessible;
+
+    return xRet;
+}
+
+
+sal_Int64 SAL_CALL ValueItemAcc::getAccessibleIndexInParent()
+{
+    const SolarMutexGuard aSolarGuard;
+    // The index defaults to -1 to indicate the child does not belong to its
+    // parent.
+    sal_Int64 nIndexInParent = -1;
+
+    if( mpParent )
+    {
+        bool bDone = false;
+
+        sal_uInt16 nCount = mpParent->mrParent.ImplGetVisibleItemCount();
+        ValueSetItem* pItem;
+        for (sal_uInt16 i=0; i<nCount && !bDone; i++)
+        {
+            // Guard the retrieval of the i-th child with a try/catch block
+            // just in case the number of children changes in the meantime.
+            try
+            {
+                pItem = mpParent->mrParent.ImplGetItem(i);
+            }
+            catch (const lang::IndexOutOfBoundsException&)
+            {
+                pItem = nullptr;
+            }
+
+            // Do not create an accessible object for the test.
+            if (pItem != nullptr && pItem->mxAcc.is())
+                if (pItem->GetAccessible( mbIsTransientChildrenDisabled ).get() == this )
+                {
+                    nIndexInParent = i;
+                    bDone = true;
+                }
+        }
+    }
+
+    //if this valueset contain a none field(common value is default), then we should increase the real index and set the noitem index value equal 0.
+    if ( mpParent && ( (mpParent->mrParent.GetStyle() & WB_NONEFIELD) != 0 ) )
+    {
+        ValueSetItem* pFirstItem = mpParent->mrParent.ImplGetItem (VALUESET_ITEM_NONEITEM);
+        if( pFirstItem && pFirstItem ->GetAccessible(mbIsTransientChildrenDisabled).get() == this )
+            nIndexInParent = 0;
+        else
+            nIndexInParent++;
+    }
+    return nIndexInParent;
+}
+
+
+sal_Int16 SAL_CALL ValueItemAcc::getAccessibleRole()
+{
+    return accessibility::AccessibleRole::LIST_ITEM;
+}
+
+
+OUString SAL_CALL ValueItemAcc::getAccessibleDescription()
+{
+    return OUString();
+}
+
+
+OUString SAL_CALL ValueItemAcc::getAccessibleName()
+{
+    const SolarMutexGuard aSolarGuard;
+
+    if( mpParent )
+    {
+        if (mpParent->maText.isEmpty())
+            return "Item " +  OUString::number(static_cast<sal_Int32>(mpParent->mnId));
+        else
+            return mpParent->maText;
+    }
+
+    return OUString();
+}
+
+
+uno::Reference< accessibility::XAccessibleRelationSet > SAL_CALL ValueItemAcc::getAccessibleRelationSet()
+{
+    return uno::Reference< accessibility::XAccessibleRelationSet >();
+}
+
+
+sal_Int64 SAL_CALL ValueItemAcc::getAccessibleStateSet()
+{
+    const SolarMutexGuard aSolarGuard;
+    sal_Int64 nStateSet = 0;
+
+    if( mpParent )
+    {
+        nStateSet |= accessibility::AccessibleStateType::ENABLED;
+        nStateSet |= accessibility::AccessibleStateType::SENSITIVE;
+        nStateSet |= accessibility::AccessibleStateType::SHOWING;
+        nStateSet |= accessibility::AccessibleStateType::VISIBLE;
+        if ( !mbIsTransientChildrenDisabled )
+            nStateSet |= accessibility::AccessibleStateType::TRANSIENT;
+
+        nStateSet |= accessibility::AccessibleStateType::SELECTABLE;
+        nStateSet |= accessibility::AccessibleStateType::FOCUSABLE;
+
+        if( mpParent->mrParent.GetSelectedItemId() == mpParent->mnId )
+        {
+
+            nStateSet |= accessibility::AccessibleStateType::SELECTED;
+            if (mpParent->mrParent.HasChildFocus())
+                nStateSet |= accessibility::AccessibleStateType::FOCUSED;
+        }
+    }
+
+    return nStateSet;
+}
+
+
+lang::Locale SAL_CALL ValueItemAcc::getLocale()
+{
+    const SolarMutexGuard aSolarGuard;
+    uno::Reference< accessibility::XAccessible >    xParent( getAccessibleParent() );
+    lang::Locale                                    aRet( "", "", "" );
+
+    if( xParent.is() )
+    {
+        uno::Reference< accessibility::XAccessibleContext > xParentContext( xParent->getAccessibleContext() );
+
+        if( xParentContext.is() )
+            aRet = xParentContext->getLocale();
+    }
+
+    return aRet;
+}
+
+
+void SAL_CALL ValueItemAcc::addAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener )
+{
+    std::scoped_lock aGuard( maMutex );
+
+    if( !rxListener.is() )
+           return;
+
+    bool bFound = false;
+
+    for (auto const& eventListener : mxEventListeners)
+    {
+        if(eventListener == rxListener)
+        {
+            bFound = true;
+            break;
+        }
+    }
+
+    if (!bFound)
+        mxEventListeners.push_back( rxListener );
+}
+
+
+void SAL_CALL ValueItemAcc::removeAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener )
+{
+    std::scoped_lock aGuard( maMutex );
+
+    if( rxListener.is() )
+    {
+        ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > >::iterator aIter =
+            std::find(mxEventListeners.begin(), mxEventListeners.end(), rxListener);
+
+        if (aIter != mxEventListeners.end())
+            mxEventListeners.erase(aIter);
+    }
+}
+
+
+sal_Bool SAL_CALL ValueItemAcc::containsPoint( const awt::Point& aPoint )
+{
+    const awt::Rectangle    aRect( getBounds() );
+    const Point             aSize( aRect.Width, aRect.Height );
+    const Point             aNullPoint, aTestPoint( aPoint.X, aPoint.Y );
+
+    return tools::Rectangle( aNullPoint, aSize ).Contains( aTestPoint );
+}
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueItemAcc::getAccessibleAtPoint( const awt::Point& )
+{
+    uno::Reference< accessibility::XAccessible > xRet;
+    return xRet;
+}
+
+awt::Rectangle SAL_CALL ValueItemAcc::getBounds()
+{
+    const SolarMutexGuard aSolarGuard;
+    awt::Rectangle      aRet;
+
+    if( mpParent )
+    {
+        tools::Rectangle   aRect( mpParent->mrParent.GetItemRect(mpParent->mnId) );
+        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;
+}
+
+awt::Point SAL_CALL ValueItemAcc::getLocation()
+{
+    const awt::Rectangle    aRect( getBounds() );
+    awt::Point              aRet;
+
+    aRet.X = aRect.X;
+    aRet.Y = aRect.Y;
+
+    return aRet;
+}
+
+awt::Point SAL_CALL ValueItemAcc::getLocationOnScreen()
+{
+    const SolarMutexGuard aSolarGuard;
+    awt::Point          aRet;
+
+    if( mpParent )
+    {
+        const Point aPos = mpParent->mrParent.GetItemRect(mpParent->mnId).TopLeft();
+        const Point aScreenPos(mpParent->mrParent.GetDrawingArea()->get_accessible_location_on_screen());
+
+        aRet.X = aPos.X() + aScreenPos.X();
+        aRet.Y = aPos.Y() + aScreenPos.Y();
+    }
+
+    return aRet;
+}
+
+awt::Size SAL_CALL ValueItemAcc::getSize()
+{
+    const awt::Rectangle    aRect( getBounds() );
+    awt::Size               aRet;
+
+    aRet.Width = aRect.Width;
+    aRet.Height = aRect.Height;
+
+    return aRet;
+}
+
+void SAL_CALL ValueItemAcc::grabFocus()
+{
+    // nothing to do
+}
+
+sal_Int32 SAL_CALL ValueItemAcc::getForeground(  )
+{
+    Color nColor = Application::GetSettings().GetStyleSettings().GetWindowTextColor();
+    return static_cast<sal_Int32>(nColor);
+}
+
+sal_Int32 SAL_CALL ValueItemAcc::getBackground(  )
+{
+    Color nColor;
+    if (mpParent && mpParent->meType == VALUESETITEM_COLOR)
+        nColor = mpParent->maColor;
+    else
+        nColor = Application::GetSettings().GetStyleSettings().GetWindowColor();
+    return static_cast<sal_Int32>(nColor);
+}
+
+void ValueItemAcc::FireAccessibleEvent( short nEventId, const uno::Any& rOldValue, const uno::Any& rNewValue )
+{
+    if( !nEventId )
+        return;
+
+    ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > >                  aTmpListeners( mxEventListeners );
+    accessibility::AccessibleEventObject                                                        aEvtObject;
+
+    aEvtObject.EventId = nEventId;
+    aEvtObject.Source = getXWeak();
+    aEvtObject.NewValue = rNewValue;
+    aEvtObject.OldValue = rOldValue;
+
+    for (auto const& tmpListener : aTmpListeners)
+    {
+        tmpListener->notifyEvent( aEvtObject );
+    }
+}
+
+ValueSetAcc::ValueSetAcc( ValueSet* pParent ) :
+    mpParent( pParent ),
+    mbIsFocused(false)
+{
+}
+
+
+ValueSetAcc::~ValueSetAcc()
+{
+}
+
+
+void ValueSetAcc::FireAccessibleEvent( short nEventId, const uno::Any& rOldValue, const uno::Any& rNewValue )
+{
+    if( !nEventId )
+        return;
+
+    ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > >                  aTmpListeners( mxEventListeners );
+    accessibility::AccessibleEventObject                                                        aEvtObject;
+
+    aEvtObject.EventId = nEventId;
+    aEvtObject.Source = getXWeak();
+    aEvtObject.NewValue = rNewValue;
+    aEvtObject.OldValue = rOldValue;
+    aEvtObject.IndexHint = -1;
+
+    for (auto const& tmpListener : aTmpListeners)
+    {
+        try
+        {
+            tmpListener->notifyEvent( aEvtObject );
+        }
+        catch(const uno::Exception&)
+        {
+        }
+    }
+}
+
+void ValueSetAcc::GetFocus()
+{
+    mbIsFocused = true;
+
+    // Broadcast the state change.
+    css::uno::Any aOldState, aNewState;
+    aNewState <<= css::accessibility::AccessibleStateType::FOCUSED;
+    FireAccessibleEvent(
+        css::accessibility::AccessibleEventId::STATE_CHANGED,
+        aOldState, aNewState);
+}
+
+
+void ValueSetAcc::LoseFocus()
+{
+    mbIsFocused = false;
+
+    // Broadcast the state change.
+    css::uno::Any aOldState, aNewState;
+    aOldState <<= css::accessibility::AccessibleStateType::FOCUSED;
+    FireAccessibleEvent(
+        css::accessibility::AccessibleEventId::STATE_CHANGED,
+        aOldState, aNewState);
+}
+
+
+uno::Reference< accessibility::XAccessibleContext > SAL_CALL ValueSetAcc::getAccessibleContext()
+{
+    // still allow retrieving a11y context when not disposed yet, but ValueSet is unset
+    ThrowIfDisposed(false);
+    return this;
+}
+
+
+sal_Int64 SAL_CALL ValueSetAcc::getAccessibleChildCount()
+{
+    const SolarMutexGuard aSolarGuard;
+    ThrowIfDisposed();
+
+    sal_Int64 nCount = mpParent->ImplGetVisibleItemCount();
+    if (HasNoneField())
+        nCount += 1;
+    return nCount;
+}
+
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getAccessibleChild( sal_Int64 i )
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+
+    if (i < 0 || i >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    ValueSetItem* pItem = getItem (sal::static_int_cast< sal_uInt16 >(i));
+
+    if( !pItem )
+        throw lang::IndexOutOfBoundsException();
+
+    uno::Reference< accessibility::XAccessible >  xRet = pItem->GetAccessible( false/*bIsTransientChildrenDisabled*/ );
+    return xRet;
+}
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getAccessibleParent()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    return mpParent->GetDrawingArea()->get_accessible_parent();
+}
+
+sal_Int64 SAL_CALL ValueSetAcc::getAccessibleIndexInParent()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+
+    // -1 for child not found/no parent (according to specification)
+    sal_Int64 nRet = -1;
+
+    uno::Reference<accessibility::XAccessible> xParent(getAccessibleParent());
+    if (!xParent)
+        return nRet;
+
+    try
+    {
+        uno::Reference<accessibility::XAccessibleContext> xParentContext(xParent->getAccessibleContext());
+
+        //  iterate over parent's children and search for this object
+        if ( xParentContext.is() )
+        {
+            sal_Int64 nChildCount = xParentContext->getAccessibleChildCount();
+            for ( sal_Int64 nChild = 0; ( nChild < nChildCount ) && ( -1 == nRet ); ++nChild )
+            {
+                uno::Reference<XAccessible> xChild(xParentContext->getAccessibleChild(nChild));
+                if ( xChild.get() == this )
+                    nRet = nChild;
+            }
+        }
+    }
+    catch (const uno::Exception&)
+    {
+        TOOLS_WARN_EXCEPTION( "svtools", "ValueSetAcc::getAccessibleIndexInParent" );
+    }
+
+    return nRet;
+}
+
+sal_Int16 SAL_CALL ValueSetAcc::getAccessibleRole()
+{
+    ThrowIfDisposed();
+    return accessibility::AccessibleRole::LIST;
+}
+
+
+OUString SAL_CALL ValueSetAcc::getAccessibleDescription()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    OUString              aRet;
+
+    if (mpParent)
+    {
+        aRet = mpParent->GetAccessibleDescription();
+    }
+
+    return aRet;
+}
+
+
+OUString SAL_CALL ValueSetAcc::getAccessibleName()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    OUString              aRet;
+
+    if (mpParent)
+    {
+        aRet = mpParent->GetAccessibleName();
+    }
+
+    return aRet;
+}
+
+uno::Reference< accessibility::XAccessibleRelationSet > SAL_CALL ValueSetAcc::getAccessibleRelationSet()
+{
+    ThrowIfDisposed();
+    SolarMutexGuard g;
+    return mpParent->GetDrawingArea()->get_accessible_relation_set();
+}
+
+sal_Int64 SAL_CALL ValueSetAcc::getAccessibleStateSet()
+{
+    ThrowIfDisposed();
+    sal_Int64 nStateSet = 0;
+
+    // Set some states.
+    nStateSet |= accessibility::AccessibleStateType::ENABLED;
+    nStateSet |= accessibility::AccessibleStateType::SENSITIVE;
+    nStateSet |= accessibility::AccessibleStateType::SHOWING;
+    nStateSet |= accessibility::AccessibleStateType::VISIBLE;
+    nStateSet |= accessibility::AccessibleStateType::MANAGES_DESCENDANTS;
+    nStateSet |= accessibility::AccessibleStateType::FOCUSABLE;
+    if (mbIsFocused)
+        nStateSet |= accessibility::AccessibleStateType::FOCUSED;
+
+    return nStateSet;
+}
+
+
+lang::Locale SAL_CALL ValueSetAcc::getLocale()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    uno::Reference< accessibility::XAccessible >    xParent( getAccessibleParent() );
+    lang::Locale                                    aRet( "", "", "" );
+
+    if( xParent.is() )
+    {
+        uno::Reference< accessibility::XAccessibleContext > xParentContext( xParent->getAccessibleContext() );
+
+        if( xParentContext.is() )
+            aRet = xParentContext->getLocale ();
+    }
+
+    return aRet;
+}
+
+
+void SAL_CALL ValueSetAcc::addAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener )
+{
+    ThrowIfDisposed(false);
+    std::unique_lock aGuard (m_aMutex);
+
+    if( !rxListener.is() )
+           return;
+
+    bool bFound = false;
+
+    for (auto const& eventListener : mxEventListeners)
+    {
+        if(eventListener == rxListener)
+        {
+            bFound = true;
+            break;
+        }
+    }
+
+    if (!bFound)
+        mxEventListeners.push_back( rxListener );
+}
+
+
+void SAL_CALL ValueSetAcc::removeAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener )
+{
+    ThrowIfDisposed(false);
+    std::unique_lock aGuard (m_aMutex);
+
+    if( rxListener.is() )
+    {
+        ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > >::iterator aIter =
+            std::find(mxEventListeners.begin(), mxEventListeners.end(), rxListener);
+
+        if (aIter != mxEventListeners.end())
+            mxEventListeners.erase(aIter);
+    }
+}
+
+
+sal_Bool SAL_CALL ValueSetAcc::containsPoint( const awt::Point& aPoint )
+{
+    ThrowIfDisposed();
+    const awt::Rectangle    aRect( getBounds() );
+    const Point             aSize( aRect.Width, aRect.Height );
+    const Point             aNullPoint, aTestPoint( aPoint.X, aPoint.Y );
+
+    return tools::Rectangle( aNullPoint, aSize ).Contains( aTestPoint );
+}
+
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getAccessibleAtPoint( const awt::Point& aPoint )
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    const sal_uInt16                                    nItemId = mpParent->GetItemId( Point( aPoint.X, aPoint.Y ) );
+    uno::Reference< accessibility::XAccessible >    xRet;
+
+    if ( nItemId )
+    {
+        const size_t nItemPos = mpParent->GetItemPos( nItemId );
+
+        if( VALUESET_ITEM_NONEITEM != nItemPos )
+        {
+            ValueSetItem *const pItem = mpParent->mItemList[nItemPos].get();
+            xRet = pItem->GetAccessible( false/*bIsTransientChildrenDisabled*/ );
+        }
+    }
+
+    return xRet;
+}
+
+
+awt::Rectangle SAL_CALL ValueSetAcc::getBounds()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    const Point         aOutPos;
+    const Size          aOutSize( mpParent->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 ValueSetAcc::getLocation()
+{
+    ThrowIfDisposed();
+    const awt::Rectangle    aRect( getBounds() );
+    awt::Point              aRet;
+
+    aRet.X = aRect.X;
+    aRet.Y = aRect.Y;
+
+    return aRet;
+}
+
+awt::Point SAL_CALL ValueSetAcc::getLocationOnScreen()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    awt::Point aScreenLoc(0, 0);
+
+    uno::Reference<accessibility::XAccessible> xParent(getAccessibleParent());
+    if (xParent)
+    {
+        uno::Reference<accessibility::XAccessibleContext> xParentContext(xParent->getAccessibleContext());
+        uno::Reference<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 ValueSetAcc::getSize()
+{
+    ThrowIfDisposed();
+    const awt::Rectangle    aRect( getBounds() );
+    awt::Size               aRet;
+
+    aRet.Width = aRect.Width;
+    aRet.Height = aRect.Height;
+
+    return aRet;
+}
+
+void SAL_CALL ValueSetAcc::grabFocus()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    mpParent->GrabFocus();
+}
+
+sal_Int32 SAL_CALL ValueSetAcc::getForeground(  )
+{
+    ThrowIfDisposed();
+    Color nColor = Application::GetSettings().GetStyleSettings().GetWindowTextColor();
+    return static_cast<sal_Int32>(nColor);
+}
+
+sal_Int32 SAL_CALL ValueSetAcc::getBackground(  )
+{
+    ThrowIfDisposed();
+    Color nColor = Application::GetSettings().GetStyleSettings().GetWindowColor();
+    return static_cast<sal_Int32>(nColor);
+}
+
+void SAL_CALL ValueSetAcc::selectAccessibleChild( sal_Int64 nChildIndex )
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+
+    if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    ValueSetItem* pItem = getItem (sal::static_int_cast< sal_uInt16 >(nChildIndex));
+
+    if(pItem == nullptr)
+        throw lang::IndexOutOfBoundsException();
+
+    mpParent->SelectItem( pItem->mnId );
+}
+
+
+sal_Bool SAL_CALL ValueSetAcc::isAccessibleChildSelected( sal_Int64 nChildIndex )
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+
+    if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    ValueSetItem* pItem = getItem (sal::static_int_cast< sal_uInt16 >(nChildIndex));
+
+    if (pItem == nullptr)
+        throw lang::IndexOutOfBoundsException();
+
+    bool  bRet = mpParent->IsItemSelected( pItem->mnId );
+    return bRet;
+}
+
+
+void SAL_CALL ValueSetAcc::clearAccessibleSelection()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    mpParent->SetNoSelection();
+}
+
+
+void SAL_CALL ValueSetAcc::selectAllAccessibleChildren()
+{
+    ThrowIfDisposed();
+    // unsupported due to single selection only
+}
+
+
+sal_Int64 SAL_CALL ValueSetAcc::getSelectedAccessibleChildCount()
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    sal_Int64 nRet = 0;
+
+    for( sal_uInt16 i = 0, nCount = getItemCount(); i < nCount; i++ )
+    {
+        ValueSetItem* pItem = getItem (i);
+
+        if( pItem && mpParent->IsItemSelected( pItem->mnId ) )
+            ++nRet;
+    }
+
+    return nRet;
+}
+
+
+uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex )
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+    uno::Reference< accessibility::XAccessible >    xRet;
+
+    for( sal_uInt16 i = 0, nCount = getItemCount(), nSel = 0; ( i < nCount ) && !xRet.is(); i++ )
+    {
+        ValueSetItem* pItem = getItem(i);
+
+        if( pItem && mpParent->IsItemSelected( pItem->mnId ) && ( nSelectedChildIndex == static_cast< sal_Int64 >( nSel++ ) ) )
+            xRet = pItem->GetAccessible( false/*bIsTransientChildrenDisabled*/ );
+    }
+
+    return xRet;
+}
+
+
+void SAL_CALL ValueSetAcc::deselectAccessibleChild( sal_Int64 nChildIndex )
+{
+    ThrowIfDisposed();
+    const SolarMutexGuard aSolarGuard;
+
+    if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount())
+        throw lang::IndexOutOfBoundsException();
+
+    // Because of the single selection we can reset the whole selection when
+    // the specified child is currently selected.
+    if (isAccessibleChildSelected(nChildIndex))
+        mpParent->SetNoSelection();
+}
+
+void ValueSetAcc::Invalidate()
+{
+    mpParent = nullptr;
+}
+
+void ValueSetAcc::disposing(std::unique_lock<std::mutex>& rGuard)
+{
+    // Make a copy of the list and clear the original.
+    ::std::vector<uno::Reference<accessibility::XAccessibleEventListener> > aListenerListCopy = std::move(mxEventListeners);
+
+    if (aListenerListCopy.empty())
+        return;
+
+    rGuard.unlock();
+    // Inform all listeners that this objects is disposing.
+    lang::EventObject aEvent (static_cast<accessibility::XAccessible*>(this));
+    for (auto const& listenerCopy : aListenerListCopy)
+    {
+        try
+        {
+            listenerCopy->disposing (aEvent);
+        }
+        catch(const uno::Exception&)
+        {
+            // Ignore exceptions.
+        }
+    }
+}
+
+
+sal_uInt16 ValueSetAcc::getItemCount() const
+{
+    sal_uInt16 nCount = mpParent->ImplGetVisibleItemCount();
+    // When the None-Item is visible then increase the number of items by
+    // one.
+    if (HasNoneField())
+        nCount += 1;
+    return nCount;
+}
+
+ValueSetItem* ValueSetAcc::getItem (sal_uInt16 nIndex) const
+{
+    ValueSetItem* pItem = nullptr;
+
+    if (HasNoneField())
+    {
+        if (nIndex == 0)
+            // When present the first item is the then always visible none field.
+            pItem = mpParent->ImplGetItem (VALUESET_ITEM_NONEITEM);
+        else
+            // Shift down the index to compensate for the none field.
+            nIndex -= 1;
+    }
+    if (pItem == nullptr)
+        pItem = mpParent->ImplGetItem (nIndex);
+
+    return pItem;
+}
+
+
+void ValueSetAcc::ThrowIfDisposed(bool bCheckParent)
+{
+    if (m_bDisposed)
+    {
+        SAL_WARN("svx", "Calling disposed object. Throwing exception:");
+        throw lang::DisposedException (
+            "object has been already disposed",
+            getXWeak());
+    }
+
+    if (bCheckParent && !mpParent)
+    {
+        assert(false && "ValueSetAcc not disposed but mpParent == NULL");
+        throw css::uno::RuntimeException("ValueSetAcc not disposed but mpParent == NULL");
+    }
+}
+
+bool ValueSetAcc::HasNoneField() const
+{
+    assert(mpParent && "ValueSetAcc::HasNoneField called with mpParent==NULL");
+    return ((mpParent->GetStyle() & WB_NONEFIELD) != 0);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */