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path: root/accessibility/source/standard/vclxaccessiblelistitem.cxx
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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: vclxaccessiblelistitem.cxx,v $
 * $Revision: 1.3 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_accessibility.hxx"
#include <accessibility/standard/vclxaccessiblelistitem.hxx>
#include <toolkit/helper/convert.hxx>
#include <accessibility/helper/listboxhelper.hxx>
#include <com/sun/star/awt/Point.hpp>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/awt/Size.hpp>

#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/datatransfer/clipboard/XClipboard.hpp>
#include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>
#include <tools/debug.hxx>
#include <vcl/svapp.hxx>
#include <vcl/controllayout.hxx>
#include <vcl/unohelp2.hxx>
#include <toolkit/awt/vclxwindow.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <cppuhelper/typeprovider.hxx>
#include <comphelper/sequence.hxx>
#include <comphelper/accessibleeventnotifier.hxx>

namespace
{
    void checkIndex_Impl( sal_Int32 _nIndex, const ::rtl::OUString& _sText ) throw (::com::sun::star::lang::IndexOutOfBoundsException)
    {
        if ( _nIndex < 0 || _nIndex > _sText.getLength() )
            throw ::com::sun::star::lang::IndexOutOfBoundsException();
    }
}

// class VCLXAccessibleListItem ------------------------------------------

using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star;

DBG_NAME(VCLXAccessibleListItem)

// -----------------------------------------------------------------------------
// Ctor() and Dtor()
// -----------------------------------------------------------------------------
VCLXAccessibleListItem::VCLXAccessibleListItem( ::accessibility::IComboListBoxHelper* _pListBoxHelper, sal_Int32 _nIndexInParent, const Reference< XAccessible >& _xParent ) :

    VCLXAccessibleListItem_BASE ( m_aMutex ),

    m_nIndexInParent( _nIndexInParent ),
    m_bSelected     ( sal_False ),
    m_bVisible      ( sal_False ),
    m_nClientId     ( 0 ),
    m_pListBoxHelper( _pListBoxHelper ),
    m_xParent       ( _xParent )

{
    DBG_CTOR( VCLXAccessibleListItem, NULL );

    if ( m_xParent.is() )
        m_xParentContext = m_xParent->getAccessibleContext();

    if ( m_pListBoxHelper )
        m_sEntryText = m_pListBoxHelper->GetEntry( (USHORT)_nIndexInParent );
}
// -----------------------------------------------------------------------------
VCLXAccessibleListItem::~VCLXAccessibleListItem()
{
    DBG_DTOR( VCLXAccessibleListItem, NULL );
}
// -----------------------------------------------------------------------------
void VCLXAccessibleListItem::SetSelected( sal_Bool _bSelected )
{
    if ( m_bSelected != _bSelected )
    {
        Any aOldValue;
        Any aNewValue;
        if ( m_bSelected )
            aOldValue <<= AccessibleStateType::SELECTED;
        else
            aNewValue <<= AccessibleStateType::SELECTED;
        m_bSelected = _bSelected;
        NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
    }
}
// -----------------------------------------------------------------------------
void VCLXAccessibleListItem::SetVisible( sal_Bool _bVisible )
{
    if ( m_bVisible != _bVisible )
    {
        Any aOldValue, aNewValue;
        m_bVisible = _bVisible;
        (_bVisible ? aNewValue : aOldValue ) <<= AccessibleStateType::VISIBLE;
        NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
        (_bVisible ? aNewValue : aOldValue ) <<= AccessibleStateType::SHOWING;
        NotifyAccessibleEvent( AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
    }
}
// -----------------------------------------------------------------------------
void VCLXAccessibleListItem::NotifyAccessibleEvent( sal_Int16 _nEventId,
                                                    const ::com::sun::star::uno::Any& _aOldValue,
                                                    const ::com::sun::star::uno::Any& _aNewValue )
{
    AccessibleEventObject aEvt;
    aEvt.Source = *this;
    aEvt.EventId = _nEventId;
    aEvt.OldValue = _aOldValue;
    aEvt.NewValue = _aNewValue;

    if (m_nClientId)
        comphelper::AccessibleEventNotifier::addEvent( m_nClientId, aEvt );
}
// -----------------------------------------------------------------------------
// OCommonAccessibleText
// -----------------------------------------------------------------------------
::rtl::OUString VCLXAccessibleListItem::implGetText()
{
    return m_sEntryText;
}
// -----------------------------------------------------------------------------
Locale VCLXAccessibleListItem::implGetLocale()
{
    return Application::GetSettings().GetLocale();
}
// -----------------------------------------------------------------------------
void VCLXAccessibleListItem::implGetSelection( sal_Int32& nStartIndex, sal_Int32& nEndIndex )
{
    nStartIndex = 0;
    nEndIndex = 0;
}
// -----------------------------------------------------------------------------
// XInterface
// -----------------------------------------------------------------------------
Any SAL_CALL VCLXAccessibleListItem::queryInterface( Type const & rType ) throw (RuntimeException)
{
    return VCLXAccessibleListItem_BASE::queryInterface( rType );
}
// -----------------------------------------------------------------------------
void SAL_CALL VCLXAccessibleListItem::acquire() throw ()
{
    VCLXAccessibleListItem_BASE::acquire();
}
// -----------------------------------------------------------------------------
void SAL_CALL VCLXAccessibleListItem::release() throw ()
{
    VCLXAccessibleListItem_BASE::release();
}
// -----------------------------------------------------------------------------
// XTypeProvider
// -----------------------------------------------------------------------------
Sequence< Type > SAL_CALL VCLXAccessibleListItem::getTypes(  ) throw (RuntimeException)
{
    return VCLXAccessibleListItem_BASE::getTypes();
}
// -----------------------------------------------------------------------------
Sequence< sal_Int8 > VCLXAccessibleListItem::getImplementationId() throw (RuntimeException)
{
    static ::cppu::OImplementationId* pId = NULL;

    if ( !pId )
    {
        ::osl::Guard< ::osl::Mutex > aGuard( m_aMutex );

        if ( !pId )
        {
            static ::cppu::OImplementationId aId;
            pId = &aId;
        }
    }
    return pId->getImplementationId();
}
// -----------------------------------------------------------------------------
// XComponent
// -----------------------------------------------------------------------------
void SAL_CALL VCLXAccessibleListItem::disposing()
{
    comphelper::AccessibleEventNotifier::TClientId nId( 0 );
    Reference< XInterface > xEventSource;
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        VCLXAccessibleListItem_BASE::disposing();
        m_sEntryText        = ::rtl::OUString();
        m_pListBoxHelper    = NULL;
        m_xParent           = NULL;
        m_xParentContext    = NULL;

        nId = m_nClientId;
        m_nClientId =  0;
        if ( nId )
            xEventSource = *this;
    }

    // Send a disposing to all listeners.
    if ( nId )
            comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nId, *this );
}
// -----------------------------------------------------------------------------
// XServiceInfo
// -----------------------------------------------------------------------------
::rtl::OUString VCLXAccessibleListItem::getImplementationName() throw (RuntimeException)
{
    return ::rtl::OUString::createFromAscii( "com.sun.star.comp.toolkit.AccessibleListItem" );
}
// -----------------------------------------------------------------------------
sal_Bool VCLXAccessibleListItem::supportsService( const ::rtl::OUString& rServiceName ) throw (RuntimeException)
{
    Sequence< ::rtl::OUString > aNames( getSupportedServiceNames() );
    const ::rtl::OUString* pNames = aNames.getConstArray();
    const ::rtl::OUString* pEnd = pNames + aNames.getLength();
    for ( ; pNames != pEnd && !pNames->equals( rServiceName ); ++pNames )
        ;

    return pNames != pEnd;
}
// -----------------------------------------------------------------------------
Sequence< ::rtl::OUString > VCLXAccessibleListItem::getSupportedServiceNames() throw (RuntimeException)
{
    Sequence< ::rtl::OUString > aNames(3);
    aNames[0] = ::rtl::OUString::createFromAscii( "com.sun.star.accessibility.AccessibleContext" );
    aNames[1] = ::rtl::OUString::createFromAscii( "com.sun.star.accessibility.AccessibleComponent" );
    aNames[2] = ::rtl::OUString::createFromAscii( "com.sun.star.accessibility.AccessibleListItem" );
    return aNames;
}
// -----------------------------------------------------------------------------
// XAccessible
// -----------------------------------------------------------------------------
Reference< XAccessibleContext > SAL_CALL VCLXAccessibleListItem::getAccessibleContext(  ) throw (RuntimeException)
{
    return this;
}
// -----------------------------------------------------------------------------
// XAccessibleContext
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getAccessibleChildCount(  ) throw (RuntimeException)
{
    return 0;
}
// -----------------------------------------------------------------------------
Reference< XAccessible > SAL_CALL VCLXAccessibleListItem::getAccessibleChild( sal_Int32 ) throw (RuntimeException)
{
    return Reference< XAccessible >();
}
// -----------------------------------------------------------------------------
Reference< XAccessible > SAL_CALL VCLXAccessibleListItem::getAccessibleParent(  ) throw (RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );

    return m_xParent;
}
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getAccessibleIndexInParent(  ) throw (RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    return m_nIndexInParent;
}
// -----------------------------------------------------------------------------
sal_Int16 SAL_CALL VCLXAccessibleListItem::getAccessibleRole(  ) throw (RuntimeException)
{
    return AccessibleRole::LIST_ITEM;
    //  return AccessibleRole::LABEL;
}
// -----------------------------------------------------------------------------
::rtl::OUString SAL_CALL VCLXAccessibleListItem::getAccessibleDescription(  ) throw (RuntimeException)
{
    // no description for every item
    return ::rtl::OUString();
}
// -----------------------------------------------------------------------------
::rtl::OUString SAL_CALL VCLXAccessibleListItem::getAccessibleName(  ) throw (RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );

    // entry text == accessible name
    return implGetText();
}
// -----------------------------------------------------------------------------
Reference< XAccessibleRelationSet > SAL_CALL VCLXAccessibleListItem::getAccessibleRelationSet(  ) throw (RuntimeException)
{
    utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
    Reference< XAccessibleRelationSet > xSet = pRelationSetHelper;
    return xSet;
}
// -----------------------------------------------------------------------------
Reference< XAccessibleStateSet > SAL_CALL VCLXAccessibleListItem::getAccessibleStateSet(  ) throw (RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );

    utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper;
    Reference< XAccessibleStateSet > xStateSet = pStateSetHelper;

    if ( !rBHelper.bDisposed && !rBHelper.bInDispose )
    {
        pStateSetHelper->AddState( AccessibleStateType::TRANSIENT );
        pStateSetHelper->AddState( AccessibleStateType::SELECTABLE );
        pStateSetHelper->AddState( AccessibleStateType::ENABLED );
        pStateSetHelper->AddState( AccessibleStateType::SENSITIVE );
        if ( m_bSelected )
            pStateSetHelper->AddState( AccessibleStateType::SELECTED );
        if ( m_bVisible )
        {
            pStateSetHelper->AddState( AccessibleStateType::VISIBLE );
            pStateSetHelper->AddState( AccessibleStateType::SHOWING );
        }
    }
    else
        pStateSetHelper->AddState( AccessibleStateType::DEFUNC );

    return xStateSet;
}
// -----------------------------------------------------------------------------
Locale SAL_CALL VCLXAccessibleListItem::getLocale(  ) throw (IllegalAccessibleComponentStateException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return implGetLocale();
}
// -----------------------------------------------------------------------------
// XAccessibleComponent
// -----------------------------------------------------------------------------
sal_Bool SAL_CALL VCLXAccessibleListItem::containsPoint( const awt::Point& _aPoint ) throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    sal_Bool bInside = sal_False;
    if ( m_pListBoxHelper )
    {
        Rectangle aRect( m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent ) );
        aRect.Move(-aRect.TopLeft().X(),-aRect.TopLeft().Y());
        bInside = aRect.IsInside( VCLPoint( _aPoint ) );
    }
    return bInside;
}
// -----------------------------------------------------------------------------
Reference< XAccessible > SAL_CALL VCLXAccessibleListItem::getAccessibleAtPoint( const awt::Point& ) throw (RuntimeException)
{
    return Reference< XAccessible >();
}
// -----------------------------------------------------------------------------
awt::Rectangle SAL_CALL VCLXAccessibleListItem::getBounds(  ) throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    awt::Rectangle aRect;
    if ( m_pListBoxHelper )
        aRect = AWTRectangle( m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent ) );

    return aRect;
}
// -----------------------------------------------------------------------------
awt::Point SAL_CALL VCLXAccessibleListItem::getLocation(  ) throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    Point aPoint(0,0);
    if ( m_pListBoxHelper )
    {
        Rectangle aRect = m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent );
        aPoint = aRect.TopLeft();
    }
    return AWTPoint( aPoint );
}
// -----------------------------------------------------------------------------
awt::Point SAL_CALL VCLXAccessibleListItem::getLocationOnScreen(  ) throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    Point aPoint(0,0);
    if ( m_pListBoxHelper )
    {
        Rectangle aRect = m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent );
        aPoint = aRect.TopLeft();
        aPoint += m_pListBoxHelper->GetWindowExtentsRelative( NULL ).TopLeft();
    }
    return AWTPoint( aPoint );
}
// -----------------------------------------------------------------------------
awt::Size SAL_CALL VCLXAccessibleListItem::getSize(  ) throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    Size aSize;
    if ( m_pListBoxHelper )
        aSize = m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent ).GetSize();

    return AWTSize( aSize );
}
// -----------------------------------------------------------------------------
void SAL_CALL VCLXAccessibleListItem::grabFocus(  ) throw (RuntimeException)
{
    // no focus for each item
}
// -----------------------------------------------------------------------------
// XAccessibleText
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getCaretPosition() throw (RuntimeException)
{
    return -1;
}
// -----------------------------------------------------------------------------
sal_Bool SAL_CALL VCLXAccessibleListItem::setCaretPosition( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    if ( !implIsValidRange( nIndex, nIndex, implGetText().getLength() ) )
        throw IndexOutOfBoundsException();

    return sal_False;
}
// -----------------------------------------------------------------------------
sal_Unicode SAL_CALL VCLXAccessibleListItem::getCharacter( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getCharacter( nIndex );
}
// -----------------------------------------------------------------------------
Sequence< PropertyValue > SAL_CALL VCLXAccessibleListItem::getCharacterAttributes( sal_Int32 nIndex, const Sequence< ::rtl::OUString >& ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    ::rtl::OUString sText( implGetText() );
    if ( !implIsValidIndex( nIndex, sText.getLength() ) )
        throw IndexOutOfBoundsException();

    return Sequence< PropertyValue >();
}
// -----------------------------------------------------------------------------
awt::Rectangle SAL_CALL VCLXAccessibleListItem::getCharacterBounds( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    ::rtl::OUString sText( implGetText() );
    if ( !implIsValidIndex( nIndex, sText.getLength() ) )
        throw IndexOutOfBoundsException();

    awt::Rectangle aBounds( 0, 0, 0, 0 );
    if ( m_pListBoxHelper )
    {
        Rectangle aCharRect = m_pListBoxHelper->GetEntryCharacterBounds( m_nIndexInParent, nIndex );
        Rectangle aItemRect = m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent );
        aCharRect.Move( -aItemRect.Left(), -aItemRect.Top() );
        aBounds = AWTRectangle( aCharRect );
    }

    return aBounds;
}
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getCharacterCount() throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getCharacterCount();
}
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getIndexAtPoint( const awt::Point& aPoint ) throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    sal_Int32 nIndex = -1;
    if ( m_pListBoxHelper )
    {
        USHORT nPos = LISTBOX_ENTRY_NOTFOUND;
        Rectangle aItemRect = m_pListBoxHelper->GetBoundingRectangle( (USHORT)m_nIndexInParent );
        Point aPnt( VCLPoint( aPoint ) );
        aPnt += aItemRect.TopLeft();
        sal_Int32 nI = m_pListBoxHelper->GetIndexForPoint( aPnt, nPos );
        if ( nI != -1 && (USHORT)m_nIndexInParent == nPos )
            nIndex = nI;
    }
    return nIndex;
}
// -----------------------------------------------------------------------------
::rtl::OUString SAL_CALL VCLXAccessibleListItem::getSelectedText() throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getSelectedText();
}
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getSelectionStart() throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getSelectionStart();
}
// -----------------------------------------------------------------------------
sal_Int32 SAL_CALL VCLXAccessibleListItem::getSelectionEnd() throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getSelectionEnd();
}
// -----------------------------------------------------------------------------
sal_Bool SAL_CALL VCLXAccessibleListItem::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    if ( !implIsValidRange( nStartIndex, nEndIndex, implGetText().getLength() ) )
        throw IndexOutOfBoundsException();

    return sal_False;
}
// -----------------------------------------------------------------------------
::rtl::OUString SAL_CALL VCLXAccessibleListItem::getText() throw (RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getText();
}
// -----------------------------------------------------------------------------
::rtl::OUString SAL_CALL VCLXAccessibleListItem::getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getTextRange( nStartIndex, nEndIndex );
}
// -----------------------------------------------------------------------------
::com::sun::star::accessibility::TextSegment SAL_CALL VCLXAccessibleListItem::getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getTextAtIndex( nIndex, aTextType );
}
// -----------------------------------------------------------------------------
::com::sun::star::accessibility::TextSegment SAL_CALL VCLXAccessibleListItem::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getTextBeforeIndex( nIndex, aTextType );
}
// -----------------------------------------------------------------------------
::com::sun::star::accessibility::TextSegment SAL_CALL VCLXAccessibleListItem::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    return OCommonAccessibleText::getTextBehindIndex( nIndex, aTextType );
}
// -----------------------------------------------------------------------------
sal_Bool SAL_CALL VCLXAccessibleListItem::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException)
{
    vos::OGuard aSolarGuard( Application::GetSolarMutex() );
    ::osl::MutexGuard aGuard( m_aMutex );

    checkIndex_Impl( nStartIndex, m_sEntryText );
    checkIndex_Impl( nEndIndex, m_sEntryText );

    sal_Bool bRet = sal_False;
    if ( m_pListBoxHelper )
    {
        Reference< datatransfer::clipboard::XClipboard > xClipboard = m_pListBoxHelper->GetClipboard();
        if ( xClipboard.is() )
        {
            ::rtl::OUString sText( getTextRange( nStartIndex, nEndIndex ) );
            ::vcl::unohelper::TextDataObject* pDataObj = new ::vcl::unohelper::TextDataObject( sText );

            const sal_uInt32 nRef = Application::ReleaseSolarMutex();
            xClipboard->setContents( pDataObj, NULL );
            Reference< datatransfer::clipboard::XFlushableClipboard > xFlushableClipboard( xClipboard, uno::UNO_QUERY );
            if( xFlushableClipboard.is() )
                xFlushableClipboard->flushClipboard();
            Application::AcquireSolarMutex( nRef );

            bRet = sal_True;
        }
    }

    return bRet;
}
// -----------------------------------------------------------------------------
// XAccessibleEventBroadcaster
// -----------------------------------------------------------------------------
void SAL_CALL VCLXAccessibleListItem::addEventListener( const Reference< XAccessibleEventListener >& xListener ) throw (RuntimeException)
{
    if (xListener.is())
    {
        if (!m_nClientId)
            m_nClientId = comphelper::AccessibleEventNotifier::registerClient( );
        comphelper::AccessibleEventNotifier::addEventListener( m_nClientId, xListener );
    }
}
// -----------------------------------------------------------------------------
void SAL_CALL VCLXAccessibleListItem::removeEventListener( const Reference< XAccessibleEventListener >& xListener ) throw (RuntimeException)
{
    if ( xListener.is() && m_nClientId )
    {
        sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( m_nClientId, xListener );
        if ( !nListenerCount )
        {
            // no listeners anymore
            // -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
            // and at least to us not firing any events anymore, in case somebody calls
            // NotifyAccessibleEvent, again
            if ( m_nClientId )
            {
                comphelper::AccessibleEventNotifier::TClientId nId( m_nClientId );
                m_nClientId = 0;
                comphelper::AccessibleEventNotifier::revokeClient( nId );
            }
        }
    }
}
// -----------------------------------------------------------------------------



// AF (Oct. 29 2002): Return black as constant foreground color.  This is an
// initial implementation and has to be substituted by code that determines
// the color that is actually used.
sal_Int32 SAL_CALL VCLXAccessibleListItem::getForeground (void)
    throw (::com::sun::star::uno::RuntimeException)
{
    return COL_BLACK;
}

// AF (Oct. 29 2002): Return white as constant background color.  This is an
// initial implementation and has to be substituted by code that determines
// the color that is actually used.
sal_Int32 SAL_CALL VCLXAccessibleListItem::getBackground (void)
    throw (::com::sun::star::uno::RuntimeException)
{
    return COL_WHITE;
}
// -----------------------------------------------------------------------------