xref: /AOO41X/main/accessibility/source/extended/accessiblelistboxentry.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)

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 *
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 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
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 * 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
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 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_accessibility.hxx"
#include "accessibility/extended/accessiblelistboxentry.hxx"
#include <svtools/svtreebx.hxx>
#include <svtools/stringtransfer.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/AccessibleRelationType.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <tools/debug.hxx>
#include <vcl/svapp.hxx>
#include <vcl/controllayout.hxx>
#include <toolkit/awt/vclxwindow.hxx>
#include <toolkit/helper/convert.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <cppuhelper/typeprovider.hxx>
#include <comphelper/sequence.hxx>
#include <comphelper/accessibleeventnotifier.hxx>
#include <toolkit/helper/vclunohelper.hxx>

#define ACCESSIBLE_ACTION_COUNT	1

namespace
{
	void checkActionIndex_Impl( sal_Int32 _nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException)
	{
		if ( _nIndex < 0 || _nIndex >= ACCESSIBLE_ACTION_COUNT )
			// only three actions
			throw ::com::sun::star::lang::IndexOutOfBoundsException();
	}
}

//........................................................................
namespace accessibility
{
	//........................................................................
	// class ALBSolarGuard ---------------------------------------------------------

	/** Aquire the solar mutex. */
	class ALBSolarGuard : public ::vos::OGuard
	{
	public:
    	inline ALBSolarGuard() : ::vos::OGuard( Application::GetSolarMutex() ) {}
	};

	// class AccessibleListBoxEntry -----------------------------------------------------

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

	DBG_NAME(AccessibleListBoxEntry)

	// -----------------------------------------------------------------------------
	// Ctor() and Dtor()
	// -----------------------------------------------------------------------------
	AccessibleListBoxEntry::AccessibleListBoxEntry( SvTreeListBox& _rListBox,
													SvLBoxEntry* _pEntry,
													const Reference< XAccessible >& _xParent ) :

		AccessibleListBoxEntry_BASE	( m_aMutex ),
		ListBoxAccessibleBase( _rListBox ),

        m_nClientId     ( 0 ),
		m_aParent		( _xParent )

	{
		DBG_CTOR( AccessibleListBoxEntry, NULL );

		_rListBox.FillEntryPath( _pEntry, m_aEntryPath );
	}
	// -----------------------------------------------------------------------------
	AccessibleListBoxEntry::~AccessibleListBoxEntry()
	{
		DBG_DTOR( AccessibleListBoxEntry, NULL );

		if ( IsAlive_Impl() )
		{
        	// increment ref count to prevent double call of Dtor
        	osl_incrementInterlockedCount( &m_refCount );
        	dispose();
		}
	}

	// -----------------------------------------------------------------------------
	Rectangle AccessibleListBoxEntry::GetBoundingBox_Impl() const
	{
		Rectangle aRect;
		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( pEntry )
		{
			aRect = getListBox()->GetBoundingRect( pEntry );
			SvLBoxEntry* pParent = getListBox()->GetParent( pEntry );
			if ( pParent )
			{
				// position relative to parent entry
				Point aTopLeft = aRect.TopLeft();
    			aTopLeft -= getListBox()->GetBoundingRect( pParent ).TopLeft();
				aRect = Rectangle( aTopLeft, aRect.GetSize() );
			}
		}

		return aRect;
	}
	// -----------------------------------------------------------------------------
	Rectangle AccessibleListBoxEntry::GetBoundingBoxOnScreen_Impl() const
	{
		Rectangle aRect;
		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( pEntry )
		{
			aRect = getListBox()->GetBoundingRect( pEntry );
			Point aTopLeft = aRect.TopLeft();
    		aTopLeft += getListBox()->GetWindowExtentsRelative( NULL ).TopLeft();
			aRect = Rectangle( aTopLeft, aRect.GetSize() );
		}

		return aRect;
	}
	// -----------------------------------------------------------------------------
	sal_Bool AccessibleListBoxEntry::IsAlive_Impl() const
	{
    	return ( !rBHelper.bDisposed && !rBHelper.bInDispose && isAlive() );
	}
	// -----------------------------------------------------------------------------
	sal_Bool AccessibleListBoxEntry::IsShowing_Impl() const
	{
		Reference< XAccessible > xParent = implGetParentAccessible( );

		sal_Bool bShowing = sal_False;
		Reference< XAccessibleContext > m_xParentContext =
			xParent.is() ? xParent->getAccessibleContext() : Reference< XAccessibleContext >();
    	if( m_xParentContext.is() )
    	{
        	Reference< XAccessibleComponent > xParentComp( m_xParentContext, uno::UNO_QUERY );
        	if( xParentComp.is() )
            	bShowing = GetBoundingBox_Impl().IsOver( VCLRectangle( xParentComp->getBounds() ) );
    	}

		return bShowing;
	}
	// -----------------------------------------------------------------------------
	Rectangle AccessibleListBoxEntry::GetBoundingBox() throw ( lang::DisposedException )
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();
    	return GetBoundingBox_Impl();
	}
	// -----------------------------------------------------------------------------
	Rectangle AccessibleListBoxEntry::GetBoundingBoxOnScreen() throw ( lang::DisposedException )
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();
    	return GetBoundingBoxOnScreen_Impl();
	}
	// -----------------------------------------------------------------------------
	void AccessibleListBoxEntry::EnsureIsAlive() const throw ( lang::DisposedException )
	{
    	if ( !IsAlive_Impl() )
        	throw lang::DisposedException();
	}
	// -----------------------------------------------------------------------------
	::rtl::OUString AccessibleListBoxEntry::implGetText()
	{
		::rtl::OUString sRet;
		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( pEntry )
			sRet = getListBox()->SearchEntryText( pEntry );
		return sRet;
	}
	// -----------------------------------------------------------------------------
	Locale AccessibleListBoxEntry::implGetLocale()
	{
    	Locale aLocale;
		aLocale = Application::GetSettings().GetUILocale();

    	return aLocale;
	}
	void AccessibleListBoxEntry::implGetSelection( sal_Int32& nStartIndex, sal_Int32& nEndIndex )
	{
		nStartIndex = 0;
		nEndIndex = 0;
	}
	// -----------------------------------------------------------------------------
	// XTypeProvider
	// -----------------------------------------------------------------------------
	// -----------------------------------------------------------------------------
	Sequence< sal_Int8 > AccessibleListBoxEntry::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/ListBoxAccessibleBase
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::dispose() throw ( uno::RuntimeException )
	{
		AccessibleListBoxEntry_BASE::dispose();
	}

	// -----------------------------------------------------------------------------
	// XComponent
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::disposing()
	{
		ALBSolarGuard();
		::osl::MutexGuard aGuard( m_aMutex );

		Reference< XAccessible > xKeepAlive( this );

        // Send a disposing to all listeners.
	    if ( m_nClientId )
	    {
			::comphelper::AccessibleEventNotifier::TClientId nId = m_nClientId;
		    m_nClientId =  0;
            ::comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nId, *this );
	    }

		// clean up
		{

			ListBoxAccessibleBase::disposing();
		}
	    m_aParent = WeakReference< XAccessible >();
	}
	// -----------------------------------------------------------------------------
	// XServiceInfo
	// -----------------------------------------------------------------------------
	::rtl::OUString SAL_CALL AccessibleListBoxEntry::getImplementationName() throw(RuntimeException)
	{
		return getImplementationName_Static();
	}
	// -----------------------------------------------------------------------------
	Sequence< ::rtl::OUString > SAL_CALL AccessibleListBoxEntry::getSupportedServiceNames() throw(RuntimeException)
	{
		return getSupportedServiceNames_Static();
	}
	// -----------------------------------------------------------------------------
	sal_Bool SAL_CALL AccessibleListBoxEntry::supportsService( const ::rtl::OUString& _rServiceName ) throw (RuntimeException)
	{
		Sequence< ::rtl::OUString > aSupported( getSupportedServiceNames() );
		const ::rtl::OUString* pSupported = aSupported.getConstArray();
		const ::rtl::OUString* pEnd = pSupported + aSupported.getLength();
		for ( ; pSupported != pEnd && !pSupported->equals(_rServiceName); ++pSupported )
			;

		return pSupported != pEnd;
	}
	// -----------------------------------------------------------------------------
	// XServiceInfo - static methods
	// -----------------------------------------------------------------------------
	Sequence< ::rtl::OUString > AccessibleListBoxEntry::getSupportedServiceNames_Static(void) throw( RuntimeException )
	{
		Sequence< ::rtl::OUString > aSupported(3);
		aSupported[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.accessibility.AccessibleContext") );
		aSupported[1] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.accessibility.AccessibleComponent") );
		aSupported[2] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.awt.AccessibleTreeListBoxEntry") );
		return aSupported;
	}
	// -----------------------------------------------------------------------------
	::rtl::OUString AccessibleListBoxEntry::getImplementationName_Static(void) throw( RuntimeException )
	{
		return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.comp.svtools.AccessibleTreeListBoxEntry") );
	}
	// -----------------------------------------------------------------------------
	// XAccessible
	// -----------------------------------------------------------------------------
	Reference< XAccessibleContext > SAL_CALL AccessibleListBoxEntry::getAccessibleContext(  ) throw (RuntimeException)
	{
		EnsureIsAlive();
		return this;
	}
	// -----------------------------------------------------------------------------
	// XAccessibleContext
	// -----------------------------------------------------------------------------
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getAccessibleChildCount(  ) throw (RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();
		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		sal_Int32 nCount = 0;
		if ( pEntry )
			nCount = getListBox()->GetLevelChildCount( pEntry );

		return nCount;
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessible > SAL_CALL AccessibleListBoxEntry::getAccessibleChild( sal_Int32 i ) throw (IndexOutOfBoundsException,RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		SvLBoxEntry* pEntry = pParent ? getListBox()->GetEntry( pParent, i ) : NULL;
		if ( !pEntry )
			throw IndexOutOfBoundsException();

		return new AccessibleListBoxEntry( *getListBox(), pEntry, this );
	}

	// -----------------------------------------------------------------------------
	Reference< XAccessible > AccessibleListBoxEntry::implGetParentAccessible( ) const
	{
		Reference< XAccessible > xParent = (Reference< XAccessible >)m_aParent;
		if ( !xParent.is() )
		{
			DBG_ASSERT( m_aEntryPath.size(), "AccessibleListBoxEntry::getAccessibleParent: invalid path!" );
			if ( 1 == m_aEntryPath.size() )
			{	// we're a top level entry
				// -> our parent is the tree listbox itself
				if ( getListBox() )
					xParent = getListBox()->GetAccessible( );
			}
			else
			{	// we have a entry as parent -> get it's accessible

				// shorten our access path by one
				::std::deque< sal_Int32 > aParentPath( m_aEntryPath );
				aParentPath.pop_back();

				// get the entry for this shortened access path
				SvLBoxEntry* pParentEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
				DBG_ASSERT( pParentEntry, "AccessibleListBoxEntry::implGetParentAccessible: could not obtain a parent entry!" );

				if ( pParentEntry )
					xParent = new AccessibleListBoxEntry( *getListBox(), pParentEntry, NULL );
					// note that we pass NULL here as parent-accessible:
					// this is allowed, as the AccessibleListBoxEntry class will create it's parent
					// when needed
			}
		}

		return xParent;
	}

	// -----------------------------------------------------------------------------
	Reference< XAccessible > SAL_CALL AccessibleListBoxEntry::getAccessibleParent(  ) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

		return implGetParentAccessible( );
	}
	// -----------------------------------------------------------------------------
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getAccessibleIndexInParent(  ) throw (RuntimeException)
	{
		::osl::MutexGuard aGuard( m_aMutex );

		DBG_ASSERT( !m_aEntryPath.empty(), "empty path" );
    	return m_aEntryPath.empty() ? -1 : m_aEntryPath.back();
	}
	// -----------------------------------------------------------------------------
	sal_Int16 SAL_CALL AccessibleListBoxEntry::getAccessibleRole(  ) throw (RuntimeException)
	{
		return AccessibleRole::LABEL;
	}
	// -----------------------------------------------------------------------------
	::rtl::OUString SAL_CALL AccessibleListBoxEntry::getAccessibleDescription(  ) throw (RuntimeException)
	{
		// no description for every item
		return ::rtl::OUString();
	}
	// -----------------------------------------------------------------------------
	::rtl::OUString SAL_CALL AccessibleListBoxEntry::getAccessibleName(  ) throw (RuntimeException)
	{
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();
		return implGetText();
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessibleRelationSet > SAL_CALL AccessibleListBoxEntry::getAccessibleRelationSet(  ) throw (RuntimeException)
	{
        Reference< XAccessibleRelationSet > xRelSet;
        Reference< XAccessible > xParent;
        if ( m_aEntryPath.size() > 1 ) // not a root entry
            xParent = implGetParentAccessible();
        if ( xParent.is() )
        {
            utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
            Sequence< Reference< XInterface > > aSequence(1);
            aSequence[0] = xParent;
            pRelationSetHelper->AddRelation(
                AccessibleRelation( AccessibleRelationType::NODE_CHILD_OF, aSequence ) );
            xRelSet = pRelationSetHelper;
        }
        return xRelSet;
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessibleStateSet > SAL_CALL AccessibleListBoxEntry::getAccessibleStateSet(  ) throw (RuntimeException)
	{
		::osl::MutexGuard aGuard( m_aMutex );

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

		if ( IsAlive_Impl() )
		{
	       	pStateSetHelper->AddState( AccessibleStateType::TRANSIENT );
	       	pStateSetHelper->AddState( AccessibleStateType::SELECTABLE );
	       	pStateSetHelper->AddState( AccessibleStateType::ENABLED );
            pStateSetHelper->AddState( AccessibleStateType::SENSITIVE );
			if ( getListBox()->IsInplaceEditingEnabled() )
		       	pStateSetHelper->AddState( AccessibleStateType::EDITABLE );
			if ( IsShowing_Impl() )
	        	pStateSetHelper->AddState( AccessibleStateType::SHOWING );
			getListBox()->FillAccessibleEntryStateSet(
				getListBox()->GetEntryFromPath( m_aEntryPath ), *pStateSetHelper );
		}
		else
        	pStateSetHelper->AddState( AccessibleStateType::DEFUNC );

    	return xStateSet;
	}
	// -----------------------------------------------------------------------------
	Locale SAL_CALL AccessibleListBoxEntry::getLocale(  ) throw (IllegalAccessibleComponentStateException, RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		return implGetLocale();
	}
	// -----------------------------------------------------------------------------
	// XAccessibleComponent
	// -----------------------------------------------------------------------------
	sal_Bool SAL_CALL AccessibleListBoxEntry::containsPoint( const awt::Point& rPoint ) throw (RuntimeException)
	{
    	return Rectangle( Point(), GetBoundingBox().GetSize() ).IsInside( VCLPoint( rPoint ) );
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessible > SAL_CALL AccessibleListBoxEntry::getAccessibleAtPoint( const awt::Point& _aPoint ) throw (RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();
		SvLBoxEntry* pEntry = getListBox()->GetEntry( VCLPoint( _aPoint ) );
		if ( !pEntry )
			throw RuntimeException();

		Reference< XAccessible > xAcc;
		AccessibleListBoxEntry* pAccEntry = new AccessibleListBoxEntry( *getListBox(), pEntry, this );
		Rectangle aRect = pAccEntry->GetBoundingBox_Impl();
		if ( aRect.IsInside( VCLPoint( _aPoint ) ) )
			xAcc = pAccEntry;
		return xAcc;
	}
	// -----------------------------------------------------------------------------
	awt::Rectangle SAL_CALL AccessibleListBoxEntry::getBounds(  ) throw (RuntimeException)
	{
    	return AWTRectangle( GetBoundingBox() );
	}
	// -----------------------------------------------------------------------------
	awt::Point SAL_CALL AccessibleListBoxEntry::getLocation(  ) throw (RuntimeException)
	{
    	return AWTPoint( GetBoundingBox().TopLeft() );
	}
	// -----------------------------------------------------------------------------
	awt::Point SAL_CALL AccessibleListBoxEntry::getLocationOnScreen(  ) throw (RuntimeException)
	{
    	return AWTPoint( GetBoundingBoxOnScreen().TopLeft() );
	}
	// -----------------------------------------------------------------------------
	awt::Size SAL_CALL AccessibleListBoxEntry::getSize(  ) throw (RuntimeException)
	{
    	return AWTSize( GetBoundingBox().GetSize() );
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::grabFocus(  ) throw (RuntimeException)
	{
		// do nothing, because no focus for each item
	}
	// -----------------------------------------------------------------------------
	sal_Int32 AccessibleListBoxEntry::getForeground(	) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		sal_Int32 nColor = 0;
		Reference< XAccessible > xParent = getAccessibleParent();
		if ( xParent.is() )
		{
			Reference< XAccessibleComponent > xParentComp( xParent->getAccessibleContext(), UNO_QUERY );
			if ( xParentComp.is() )
				nColor = xParentComp->getForeground();
		}

		return nColor;
	}
	// -----------------------------------------------------------------------------
	sal_Int32 AccessibleListBoxEntry::getBackground(  ) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		sal_Int32 nColor = 0;
		Reference< XAccessible > xParent = getAccessibleParent();
		if ( xParent.is() )
		{
			Reference< XAccessibleComponent > xParentComp( xParent->getAccessibleContext(), UNO_QUERY );
			if ( xParentComp.is() )
				nColor = xParentComp->getBackground();
		}

		return nColor;
	}
	// -----------------------------------------------------------------------------
	// XAccessibleText
	// -----------------------------------------------------------------------------
	// -----------------------------------------------------------------------------
	awt::Rectangle SAL_CALL AccessibleListBoxEntry::getCharacterBounds( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

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

		awt::Rectangle aBounds( 0, 0, 0, 0 );
		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( pEntry )
		{
			::vcl::ControlLayoutData aLayoutData;
			Rectangle aItemRect = GetBoundingBox();
			getListBox()->RecordLayoutData( &aLayoutData, aItemRect );
			Rectangle aCharRect = aLayoutData.GetCharacterBounds( nIndex );
			aCharRect.Move( -aItemRect.Left(), -aItemRect.Top() );
			aBounds = AWTRectangle( aCharRect );
		}

		return aBounds;
	}
	// -----------------------------------------------------------------------------
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getIndexAtPoint( const awt::Point& aPoint ) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

		sal_Int32 nIndex = -1;
		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( pEntry )
		{
			::vcl::ControlLayoutData aLayoutData;
			Rectangle aItemRect = GetBoundingBox();
			getListBox()->RecordLayoutData( &aLayoutData, aItemRect );
			Point aPnt( VCLPoint( aPoint ) );
			aPnt += aItemRect.TopLeft();
			nIndex = aLayoutData.GetIndexForPoint( aPnt );
		}

	    return nIndex;
	}
	// -----------------------------------------------------------------------------
	sal_Bool SAL_CALL AccessibleListBoxEntry::copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

		String sText = getText();
		if	( ( 0 > nStartIndex ) || ( sText.Len() <= nStartIndex )
			|| ( 0 > nEndIndex ) || ( sText.Len() <= nEndIndex ) )
			throw IndexOutOfBoundsException();

		sal_Int32 nLen = nEndIndex - nStartIndex + 1;
        ::svt::OStringTransfer::CopyString( sText.Copy( (sal_uInt16)nStartIndex, (sal_uInt16)nLen ), getListBox() );

		return sal_True;
	}
	// -----------------------------------------------------------------------------
	// XAccessibleEventBroadcaster
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::addEventListener( const Reference< XAccessibleEventListener >& xListener ) throw (RuntimeException)
	{
	    if (xListener.is())
        {
			::osl::MutexGuard aGuard( m_aMutex );
		    if (!m_nClientId)
                m_nClientId = comphelper::AccessibleEventNotifier::registerClient( );
		    comphelper::AccessibleEventNotifier::addEventListener( m_nClientId, xListener );
        }
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::removeEventListener( const Reference< XAccessibleEventListener >& xListener ) throw (RuntimeException)
	{
	    if (xListener.is())
	    {
			::osl::MutexGuard aGuard( m_aMutex );

            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
				sal_Int32 nId = m_nClientId;
				m_nClientId = 0;
			    comphelper::AccessibleEventNotifier::revokeClient( nId );

		    }
	    }
	}
	// -----------------------------------------------------------------------------
	// XAccessibleAction
	// -----------------------------------------------------------------------------
    sal_Int32 SAL_CALL AccessibleListBoxEntry::getAccessibleActionCount(  ) throw (RuntimeException)
	{
		::osl::MutexGuard aGuard( m_aMutex );

		// three actions supported
		return ACCESSIBLE_ACTION_COUNT;
	}
	// -----------------------------------------------------------------------------
    sal_Bool SAL_CALL AccessibleListBoxEntry::doAccessibleAction( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		sal_Bool bRet = sal_False;
		checkActionIndex_Impl( nIndex );
		EnsureIsAlive();

		SvLBoxEntry* pEntry = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( pEntry )
		{
			if ( getListBox()->IsExpanded( pEntry ) )
				getListBox()->Collapse( pEntry );
			else
				getListBox()->Expand( pEntry );
			bRet = sal_True;
		}

		return bRet;
	}
	// -----------------------------------------------------------------------------
    ::rtl::OUString SAL_CALL AccessibleListBoxEntry::getAccessibleActionDescription( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		checkActionIndex_Impl( nIndex );
		EnsureIsAlive();

		static const ::rtl::OUString sActionDesc( RTL_CONSTASCII_USTRINGPARAM( "toggleExpand" ) );
		return sActionDesc;
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessibleKeyBinding > AccessibleListBoxEntry::getAccessibleActionKeyBinding( sal_Int32 nIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
		::osl::MutexGuard aGuard( m_aMutex );

		Reference< XAccessibleKeyBinding > xRet;
		checkActionIndex_Impl( nIndex );
		// ... which key?
		return xRet;
	}
	// -----------------------------------------------------------------------------
	// XAccessibleSelection
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::selectAccessibleChild( sal_Int32 nChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, nChildIndex );
		if ( !pEntry )
			throw IndexOutOfBoundsException();

		getListBox()->Select( pEntry, sal_True );
	}
	// -----------------------------------------------------------------------------
	sal_Bool SAL_CALL AccessibleListBoxEntry::isAccessibleChildSelected( sal_Int32 nChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, nChildIndex );
		if ( !pEntry )
			throw IndexOutOfBoundsException();

		return getListBox()->IsSelected( pEntry );
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::clearAccessibleSelection(  ) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( !pParent )
			throw RuntimeException();
    	sal_Int32 i, nCount = 0;
		nCount = getListBox()->GetLevelChildCount( pParent );
		for ( i = 0; i < nCount; ++i )
		{
			SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, i );
			if ( getListBox()->IsSelected( pEntry ) )
				getListBox()->Select( pEntry, sal_False );
		}
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::selectAllAccessibleChildren(  ) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( !pParent )
			throw RuntimeException();
    	sal_Int32 i, nCount = 0;
		nCount = getListBox()->GetLevelChildCount( pParent );
		for ( i = 0; i < nCount; ++i )
		{
			SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, i );
			if ( !getListBox()->IsSelected( pEntry ) )
				getListBox()->Select( pEntry, sal_True );
		}
	}
	// -----------------------------------------------------------------------------
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getSelectedAccessibleChildCount(  ) throw (RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

    	sal_Int32 i, nSelCount = 0, nCount = 0;

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( !pParent )
			throw RuntimeException();
		nCount = getListBox()->GetLevelChildCount( pParent );
		for ( i = 0; i < nCount; ++i )
		{
			SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, i );
			if ( getListBox()->IsSelected( pEntry ) )
				++nSelCount;
		}

    	return nSelCount;
	}
	// -----------------------------------------------------------------------------
	Reference< XAccessible > SAL_CALL AccessibleListBoxEntry::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

		if ( nSelectedChildIndex < 0 || nSelectedChildIndex >= getSelectedAccessibleChildCount() )
			throw IndexOutOfBoundsException();

		Reference< XAccessible > xChild;
    	sal_Int32 i, nSelCount = 0, nCount = 0;

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		if ( !pParent )
			throw RuntimeException();
		nCount = getListBox()->GetLevelChildCount( pParent );
		for ( i = 0; i < nCount; ++i )
		{
			SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, i );
			if ( getListBox()->IsSelected( pEntry ) )
				++nSelCount;

			if ( nSelCount == ( nSelectedChildIndex + 1 ) )
			{
				xChild = new AccessibleListBoxEntry( *getListBox(), pEntry, this );
				break;
			}
		}

		return xChild;
	}
	// -----------------------------------------------------------------------------
	void SAL_CALL AccessibleListBoxEntry::deselectAccessibleChild( sal_Int32 nSelectedChildIndex ) throw (IndexOutOfBoundsException, RuntimeException)
	{
    	ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );

		EnsureIsAlive();

		SvLBoxEntry* pParent = getListBox()->GetEntryFromPath( m_aEntryPath );
		SvLBoxEntry* pEntry = getListBox()->GetEntry( pParent, nSelectedChildIndex );
		if ( !pEntry )
			throw IndexOutOfBoundsException();

		getListBox()->Select( pEntry, sal_False );
	}
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getCaretPosition(  ) throw (::com::sun::star::uno::RuntimeException)
	{
		return -1;
	}
	sal_Bool SAL_CALL AccessibleListBoxEntry::setCaretPosition ( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

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

		return sal_False;
	}
	sal_Unicode SAL_CALL AccessibleListBoxEntry::getCharacter( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getCharacter( nIndex );
	}
	::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL AccessibleListBoxEntry::getCharacterAttributes( sal_Int32 nIndex, const ::com::sun::star::uno::Sequence< ::rtl::OUString >& ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

		::rtl::OUString sText( implGetText() );

		if ( !implIsValidIndex( nIndex, sText.getLength() ) )
			throw IndexOutOfBoundsException();

		return ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >();
	}
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getCharacterCount(  ) throw (::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getCharacterCount(  );
	}

	::rtl::OUString SAL_CALL AccessibleListBoxEntry::getSelectedText(  ) throw (::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getSelectedText(  );
	}
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getSelectionStart(  ) throw (::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getSelectionStart(  );
	}
	sal_Int32 SAL_CALL AccessibleListBoxEntry::getSelectionEnd(  ) throw (::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getSelectionEnd(  );
	}
	sal_Bool SAL_CALL AccessibleListBoxEntry::setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

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

		return sal_False;
	}
	::rtl::OUString SAL_CALL AccessibleListBoxEntry::getText(  ) throw (::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getText(  );
	}
	::rtl::OUString SAL_CALL AccessibleListBoxEntry::getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getTextRange( nStartIndex, nEndIndex );
	}
    ::com::sun::star::accessibility::TextSegment SAL_CALL AccessibleListBoxEntry::getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getTextAtIndex( nIndex ,aTextType);
	}
    ::com::sun::star::accessibility::TextSegment SAL_CALL AccessibleListBoxEntry::getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();
		return OCommonAccessibleText::getTextBeforeIndex( nIndex ,aTextType);
	}
    ::com::sun::star::accessibility::TextSegment SAL_CALL AccessibleListBoxEntry::getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
	{
		ALBSolarGuard aSolarGuard;
		::osl::MutexGuard aGuard( m_aMutex );
		EnsureIsAlive();

		return OCommonAccessibleText::getTextBehindIndex( nIndex ,aTextType);
	}
//........................................................................
}// namespace accessibility
//........................................................................