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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <comphelper/accessiblewrapper.hxx>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+
+using namespace ::comphelper;
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+
+
+namespace comphelper
+{
+ OWrappedAccessibleChildrenManager::OWrappedAccessibleChildrenManager( const Reference< XComponentContext >& _rxContext )
+ :m_xContext( _rxContext )
+ ,m_bTransientChildren( true )
+ {
+ }
+
+
+ OWrappedAccessibleChildrenManager::~OWrappedAccessibleChildrenManager( )
+ {
+ }
+
+
+ void OWrappedAccessibleChildrenManager::setTransientChildren( bool _bSet )
+ {
+ m_bTransientChildren = _bSet;
+ }
+
+
+ void OWrappedAccessibleChildrenManager::setOwningAccessible( const Reference< XAccessible >& _rxAcc )
+ {
+ OSL_ENSURE( !m_aOwningAccessible.get().is(), "OWrappedAccessibleChildrenManager::setOwningAccessible: to be called only once!" );
+ m_aOwningAccessible = WeakReference< XAccessible >( _rxAcc );
+ }
+
+
+ void OWrappedAccessibleChildrenManager::removeFromCache( const Reference< XAccessible >& _rxKey )
+ {
+ AccessibleMap::iterator aRemovedPos = m_aChildrenMap.find( _rxKey );
+ if ( m_aChildrenMap.end() != aRemovedPos )
+ { // it was cached
+ // remove ourself as event listener
+ Reference< XComponent > xComp( aRemovedPos->first, UNO_QUERY );
+ if( xComp.is() )
+ xComp->removeEventListener( this );
+ // and remove the entry from the map
+ m_aChildrenMap.erase( aRemovedPos );
+ }
+ }
+
+
+ void OWrappedAccessibleChildrenManager::invalidateAll( )
+ {
+ // remove as event listener from the map elements
+ for( const auto& rChild : m_aChildrenMap )
+ {
+ Reference< XComponent > xComp( rChild.first, UNO_QUERY );
+ if( xComp.is() )
+ xComp->removeEventListener( this );
+ }
+ // clear the map
+ AccessibleMap().swap(m_aChildrenMap);
+ }
+
+
+ Reference< XAccessible > OWrappedAccessibleChildrenManager::getAccessibleWrapperFor(
+ const Reference< XAccessible >& _rxKey )
+ {
+ rtl::Reference< OAccessibleWrapper > xValue;
+
+ if( !_rxKey.is() )
+ {
+ // fprintf( stderr, "It was this path that was crashing stuff\n" );
+ return xValue;
+ }
+
+ // do we have this child in the cache?
+ AccessibleMap::const_iterator aPos = m_aChildrenMap.find( _rxKey );
+ if ( m_aChildrenMap.end() != aPos )
+ {
+ xValue = aPos->second;
+ }
+ else
+ { // not found in the cache, and allowed to create
+ // -> new wrapper
+ xValue = new OAccessibleWrapper( m_xContext, _rxKey, m_aOwningAccessible );
+
+ // see if we do cache children
+ if ( !m_bTransientChildren )
+ {
+ if (!m_aChildrenMap.emplace( _rxKey, xValue ).second)
+ {
+ OSL_FAIL(
+ "OWrappedAccessibleChildrenManager::"
+ "getAccessibleWrapperFor: element was already"
+ " inserted!" );
+ }
+
+ // listen for disposals of inner children - this may happen when the inner context
+ // is the owner for the inner children (it will dispose these children, and of course
+ // not our wrapper for these children)
+ Reference< XComponent > xComp( _rxKey, UNO_QUERY );
+ if ( xComp.is() )
+ xComp->addEventListener( this );
+ }
+ }
+
+ return xValue;
+ }
+
+
+ void OWrappedAccessibleChildrenManager::dispose()
+ {
+ // dispose our children
+ for( const auto& rChild : m_aChildrenMap )
+ {
+ Reference< XComponent > xComp( rChild.first, UNO_QUERY );
+ if( xComp.is() )
+ xComp->removeEventListener( this );
+
+ Reference< XComponent > xContextComponent;
+ if( rChild.second.is() )
+ xContextComponent.set( rChild.second->getContextNoCreate(),
+ ::css::uno::UNO_QUERY );
+ if( xContextComponent.is() )
+ xContextComponent->dispose();
+ }
+
+ // clear our children
+ AccessibleMap().swap(m_aChildrenMap);
+ }
+
+
+ void OWrappedAccessibleChildrenManager::implTranslateChildEventValue( const Any& _rInValue, Any& _rOutValue )
+ {
+ _rOutValue.clear();
+ Reference< XAccessible > xChild;
+ if ( _rInValue >>= xChild )
+ _rOutValue <<= getAccessibleWrapperFor( xChild );
+ }
+
+
+ void OWrappedAccessibleChildrenManager::translateAccessibleEvent( const AccessibleEventObject& _rEvent, AccessibleEventObject& _rTranslatedEvent )
+ {
+ // just in case we can't translate some of the values:
+ _rTranslatedEvent.NewValue = _rEvent.NewValue;
+ _rTranslatedEvent.OldValue = _rEvent.OldValue;
+
+ switch ( _rEvent.EventId )
+ {
+ case AccessibleEventId::CHILD:
+ case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:
+ case AccessibleEventId::CONTROLLED_BY_RELATION_CHANGED:
+ case AccessibleEventId::CONTROLLER_FOR_RELATION_CHANGED:
+ case AccessibleEventId::LABEL_FOR_RELATION_CHANGED:
+ case AccessibleEventId::LABELED_BY_RELATION_CHANGED:
+ case AccessibleEventId::CONTENT_FLOWS_FROM_RELATION_CHANGED:
+ case AccessibleEventId::CONTENT_FLOWS_TO_RELATION_CHANGED:
+ // these are events where both the old and the new value contain child references
+ implTranslateChildEventValue( _rEvent.OldValue, _rTranslatedEvent.OldValue );
+ implTranslateChildEventValue( _rEvent.NewValue, _rTranslatedEvent.NewValue );
+ break;
+
+ case AccessibleEventId::NAME_CHANGED:
+ case AccessibleEventId::DESCRIPTION_CHANGED:
+ case AccessibleEventId::ACTION_CHANGED:
+ case AccessibleEventId::STATE_CHANGED:
+ case AccessibleEventId::BOUNDRECT_CHANGED:
+ case AccessibleEventId::INVALIDATE_ALL_CHILDREN:
+ case AccessibleEventId::SELECTION_CHANGED:
+ case AccessibleEventId::VISIBLE_DATA_CHANGED:
+ case AccessibleEventId::VALUE_CHANGED:
+ case AccessibleEventId::MEMBER_OF_RELATION_CHANGED:
+ case AccessibleEventId::CARET_CHANGED:
+ case AccessibleEventId::TEXT_CHANGED:
+ case AccessibleEventId::HYPERTEXT_CHANGED:
+ case AccessibleEventId::TABLE_CAPTION_CHANGED:
+ case AccessibleEventId::TABLE_COLUMN_DESCRIPTION_CHANGED:
+ case AccessibleEventId::TABLE_COLUMN_HEADER_CHANGED:
+ case AccessibleEventId::TABLE_MODEL_CHANGED:
+ case AccessibleEventId::TABLE_ROW_DESCRIPTION_CHANGED:
+ case AccessibleEventId::TABLE_ROW_HEADER_CHANGED:
+ case AccessibleEventId::TABLE_SUMMARY_CHANGED:
+ // these Ids are also missed: SUB_WINDOW_OF_RELATION_CHANGED & TEXT_ATTRIBUTE_CHANGED
+ case AccessibleEventId::TEXT_SELECTION_CHANGED:
+ // nothing to translate
+ break;
+
+ default:
+ OSL_FAIL( "OWrappedAccessibleChildrenManager::translateAccessibleEvent: unknown (or unexpected) event id!" );
+ break;
+ }
+ }
+
+
+ void OWrappedAccessibleChildrenManager::handleChildNotification( const AccessibleEventObject& _rEvent )
+ {
+ if ( AccessibleEventId::INVALIDATE_ALL_CHILDREN == _rEvent.EventId )
+ { // clear our child map
+ invalidateAll( );
+ }
+ else if ( AccessibleEventId::CHILD == _rEvent.EventId )
+ {
+ // check if the removed or replaced element is cached
+ Reference< XAccessible > xRemoved;
+ if ( _rEvent.OldValue >>= xRemoved )
+ removeFromCache( xRemoved );
+ }
+ }
+
+
+ void SAL_CALL OWrappedAccessibleChildrenManager::disposing( const EventObject& _rSource )
+ {
+ // this should come from one of the inner XAccessible's of our children
+ Reference< XAccessible > xSource( _rSource.Source, UNO_QUERY );
+ AccessibleMap::iterator aDisposedPos = m_aChildrenMap.find( xSource );
+#if OSL_DEBUG_LEVEL > 0
+ if ( m_aChildrenMap.end() == aDisposedPos )
+ {
+ OSL_FAIL( "OWrappedAccessibleChildrenManager::disposing: where did this come from?" );
+ // helper for diagnostics
+ Reference< XAccessible > xOwningAccessible( m_aOwningAccessible );
+ Reference< XAccessibleContext > xContext;
+ try
+ {
+ if ( xOwningAccessible.is() )
+ xContext = xOwningAccessible->getAccessibleContext();
+ if ( xContext.is() )
+ {
+ //TODO: do something
+ //OUString sName = xContext->getAccessibleName();
+ //OUString sDescription = xContext->getAccessibleDescription();
+ //sal_Int32 nPlaceYourBreakpointHere = 0;
+ }
+ }
+ catch( const Exception& /*e*/ )
+ {
+ // silent this, it's only diagnostics which failed
+ }
+ }
+#endif
+ if ( m_aChildrenMap.end() != aDisposedPos )
+ {
+ m_aChildrenMap.erase( aDisposedPos );
+ }
+ }
+
+ OAccessibleWrapper::OAccessibleWrapper( const Reference< XComponentContext >& _rxContext,
+ const Reference< XAccessible >& _rxInnerAccessible, const Reference< XAccessible >& _rxParentAccessible )
+ :OAccessibleWrapper_Base( )
+ ,OComponentProxyAggregation( _rxContext, Reference< XComponent >( _rxInnerAccessible, UNO_QUERY ) )
+ ,m_xParentAccessible( _rxParentAccessible )
+ ,m_xInnerAccessible( _rxInnerAccessible )
+ {
+ }
+
+
+ OAccessibleWrapper::~OAccessibleWrapper( )
+ {
+ if ( !m_rBHelper.bDisposed )
+ {
+ acquire(); // to prevent duplicate dtor calls
+ dispose();
+ }
+ }
+
+
+ IMPLEMENT_FORWARD_XTYPEPROVIDER2( OAccessibleWrapper, OComponentProxyAggregation, OAccessibleWrapper_Base )
+ IMPLEMENT_FORWARD_REFCOUNT( OAccessibleWrapper, OComponentProxyAggregation )
+
+
+ Any OAccessibleWrapper::queryInterface( const Type& _rType )
+ {
+ // #111089# instead of the inner XAccessible the proxy XAccessible must be returned
+ Any aReturn = OAccessibleWrapper_Base::queryInterface( _rType );
+ if ( !aReturn.hasValue() )
+ aReturn = OComponentProxyAggregation::queryInterface( _rType );
+
+ return aReturn;
+ }
+
+
+ Reference< XAccessibleContext > OAccessibleWrapper::getContextNoCreate( ) const
+ {
+ return m_aContext;
+ }
+
+
+ rtl::Reference<OAccessibleContextWrapper> OAccessibleWrapper::createAccessibleContext( const Reference< XAccessibleContext >& _rxInnerContext )
+ {
+ return new OAccessibleContextWrapper( getComponentContext(), _rxInnerContext, this, m_xParentAccessible );
+ }
+
+
+ Reference< XAccessibleContext > SAL_CALL OAccessibleWrapper::getAccessibleContext( )
+ {
+ // see if the context is still alive (we cache it)
+ Reference< XAccessibleContext > xContext = m_aContext;
+ if ( !xContext.is() )
+ {
+ // create a new context
+ Reference< XAccessibleContext > xInnerContext = m_xInnerAccessible->getAccessibleContext( );
+ if ( xInnerContext.is() )
+ {
+ xContext = createAccessibleContext( xInnerContext );
+ // cache it
+ m_aContext = WeakReference< XAccessibleContext >( xContext );
+ }
+ }
+
+ return xContext;
+ }
+
+ OAccessibleContextWrapperHelper::OAccessibleContextWrapperHelper(
+ const Reference< XComponentContext >& _rxContext,
+ ::cppu::OBroadcastHelper& _rBHelper,
+ const Reference< XAccessibleContext >& _rxInnerAccessibleContext,
+ const Reference< XAccessible >& _rxOwningAccessible,
+ const Reference< XAccessible >& _rxParentAccessible )
+ :OComponentProxyAggregationHelper( _rxContext, _rBHelper )
+ ,m_xInnerContext( _rxInnerAccessibleContext )
+ ,m_xOwningAccessible( _rxOwningAccessible )
+ ,m_xParentAccessible( _rxParentAccessible )
+ // initialize the mapper for our children
+ ,m_xChildMapper( new OWrappedAccessibleChildrenManager( getComponentContext() ) )
+ {
+ // determine if we're allowed to cache children
+ Reference< XAccessibleStateSet > xStates( m_xInnerContext->getAccessibleStateSet( ) );
+ OSL_ENSURE( xStates.is(), "OAccessibleContextWrapperHelper::OAccessibleContextWrapperHelper: no inner state set!" );
+ m_xChildMapper->setTransientChildren( !xStates.is() || xStates->contains( AccessibleStateType::MANAGES_DESCENDANTS) );
+
+ m_xChildMapper->setOwningAccessible( m_xOwningAccessible );
+ }
+
+
+ void OAccessibleContextWrapperHelper::aggregateProxy( oslInterlockedCount& _rRefCount, ::cppu::OWeakObject& _rDelegator )
+ {
+ Reference< XComponent > xInnerComponent( m_xInnerContext, UNO_QUERY );
+ OSL_ENSURE( xInnerComponent.is(), "OComponentProxyAggregation::aggregateProxy: accessible is no XComponent!" );
+ if ( xInnerComponent.is() )
+ componentAggregateProxyFor( xInnerComponent, _rRefCount, _rDelegator );
+
+ // add as event listener to the inner context, because we want to multiplex the AccessibleEvents
+ osl_atomic_increment( &_rRefCount );
+ {
+ Reference< XAccessibleEventBroadcaster > xBroadcaster( m_xInner, UNO_QUERY );
+ if ( xBroadcaster.is() )
+ xBroadcaster->addAccessibleEventListener( this );
+ }
+ osl_atomic_decrement( &_rRefCount );
+ }
+
+
+ OAccessibleContextWrapperHelper::~OAccessibleContextWrapperHelper( )
+ {
+ OSL_ENSURE( m_rBHelper.bDisposed, "OAccessibleContextWrapperHelper::~OAccessibleContextWrapperHelper: you should ensure (in your dtor) that the object is disposed!" );
+ }
+
+
+ Any SAL_CALL OAccessibleContextWrapperHelper::queryInterface( const Type& _rType )
+ {
+ Any aReturn = OComponentProxyAggregationHelper::queryInterface( _rType );
+ if ( !aReturn.hasValue() )
+ aReturn = OAccessibleContextWrapperHelper_Base::queryInterface( _rType );
+ return aReturn;
+ }
+
+
+ IMPLEMENT_FORWARD_XTYPEPROVIDER2( OAccessibleContextWrapperHelper, OComponentProxyAggregationHelper, OAccessibleContextWrapperHelper_Base )
+
+
+ sal_Int32 OAccessibleContextWrapperHelper::baseGetAccessibleChildCount( )
+ {
+ return m_xInnerContext->getAccessibleChildCount();
+ }
+
+
+ Reference< XAccessible > OAccessibleContextWrapperHelper::baseGetAccessibleChild( sal_Int32 i )
+ {
+ // get the child of the wrapped component
+ Reference< XAccessible > xInnerChild = m_xInnerContext->getAccessibleChild( i );
+ return m_xChildMapper->getAccessibleWrapperFor( xInnerChild );
+ }
+
+
+ Reference< XAccessibleRelationSet > OAccessibleContextWrapperHelper::baseGetAccessibleRelationSet( )
+ {
+ return m_xInnerContext->getAccessibleRelationSet();
+ // TODO: if this relation set would contain relations to siblings, we would normally need
+ // to wrap them, too...
+ }
+
+
+ void SAL_CALL OAccessibleContextWrapperHelper::notifyEvent( const AccessibleEventObject& _rEvent )
+ {
+#if OSL_DEBUG_LEVEL > 0
+ if ( AccessibleEventId::STATE_CHANGED == _rEvent.EventId )
+ {
+ bool bChildTransienceChanged = false;
+ sal_Int16 nChangeState = 0;
+ if ( _rEvent.OldValue >>= nChangeState )
+ bChildTransienceChanged = bChildTransienceChanged || AccessibleStateType::MANAGES_DESCENDANTS == nChangeState;
+ if ( _rEvent.NewValue >>= nChangeState )
+ bChildTransienceChanged = bChildTransienceChanged || AccessibleStateType::MANAGES_DESCENDANTS == nChangeState;
+ OSL_ENSURE( !bChildTransienceChanged, "OAccessibleContextWrapperHelper::notifyEvent: MANAGES_DESCENDANTS is not expected to change during runtime!" );
+ // if this asserts, then we would need to update our m_bTransientChildren flag here,
+ // as well as (potentially) our child cache
+ }
+#endif
+ AccessibleEventObject aTranslatedEvent( _rEvent );
+
+ {
+ ::osl::MutexGuard aGuard( m_rBHelper.rMutex );
+
+ // translate the event
+ queryInterface( cppu::UnoType<XInterface>::get() ) >>= aTranslatedEvent.Source;
+ m_xChildMapper->translateAccessibleEvent( _rEvent, aTranslatedEvent );
+
+ // see if any of these notifications affect our child manager
+ m_xChildMapper->handleChildNotification( _rEvent );
+
+ if ( aTranslatedEvent.NewValue == m_xInner )
+ aTranslatedEvent.NewValue <<= aTranslatedEvent.Source;
+ if ( aTranslatedEvent.OldValue == m_xInner )
+ aTranslatedEvent.OldValue <<= aTranslatedEvent.Source;
+ }
+
+ notifyTranslatedEvent( aTranslatedEvent );
+ }
+
+
+ void SAL_CALL OAccessibleContextWrapperHelper::dispose()
+ {
+ ::osl::MutexGuard aGuard( m_rBHelper.rMutex );
+
+ // stop multiplexing events
+ Reference< XAccessibleEventBroadcaster > xBroadcaster( m_xInner, UNO_QUERY );
+ OSL_ENSURE( xBroadcaster.is(), "OAccessibleContextWrapperHelper::disposing(): inner context is no broadcaster!" );
+ if ( xBroadcaster.is() )
+ xBroadcaster->removeAccessibleEventListener( this );
+
+ // dispose the child cache/map
+ m_xChildMapper->dispose();
+
+ // let the base class dispose the inner component
+ OComponentProxyAggregationHelper::dispose();
+ }
+
+
+ void SAL_CALL OAccessibleContextWrapperHelper::disposing( const EventObject& _rEvent )
+ {
+ // simply disambiguate this
+ OComponentProxyAggregationHelper::disposing( _rEvent );
+ }
+
+ IMPLEMENT_FORWARD_XINTERFACE2( OAccessibleContextWrapper, OAccessibleContextWrapper_CBase, OAccessibleContextWrapperHelper )
+
+
+ IMPLEMENT_FORWARD_XTYPEPROVIDER2( OAccessibleContextWrapper, OAccessibleContextWrapper_CBase, OAccessibleContextWrapperHelper )
+
+
+ OAccessibleContextWrapper::OAccessibleContextWrapper( const Reference< XComponentContext >& _rxContext,
+ const Reference< XAccessibleContext >& _rxInnerAccessibleContext, const Reference< XAccessible >& _rxOwningAccessible,
+ const Reference< XAccessible >& _rxParentAccessible )
+ :OAccessibleContextWrapper_CBase( m_aMutex )
+ ,OAccessibleContextWrapperHelper( _rxContext, rBHelper, _rxInnerAccessibleContext, _rxOwningAccessible, _rxParentAccessible )
+ ,m_nNotifierClient( 0 )
+ {
+ aggregateProxy( m_refCount, *this );
+ }
+
+
+ OAccessibleContextWrapper::~OAccessibleContextWrapper()
+ {
+ }
+
+
+ sal_Int32 SAL_CALL OAccessibleContextWrapper::getAccessibleChildCount( )
+ {
+ return baseGetAccessibleChildCount();
+ }
+
+
+ Reference< XAccessible > SAL_CALL OAccessibleContextWrapper::getAccessibleChild( sal_Int32 i )
+ {
+ return baseGetAccessibleChild( i );
+ }
+
+
+ Reference< XAccessible > SAL_CALL OAccessibleContextWrapper::getAccessibleParent( )
+ {
+ return m_xParentAccessible;
+ }
+
+
+ sal_Int32 SAL_CALL OAccessibleContextWrapper::getAccessibleIndexInParent( )
+ {
+ return m_xInnerContext->getAccessibleIndexInParent();
+ }
+
+
+ sal_Int16 SAL_CALL OAccessibleContextWrapper::getAccessibleRole( )
+ {
+ return m_xInnerContext->getAccessibleRole();
+ }
+
+
+ OUString SAL_CALL OAccessibleContextWrapper::getAccessibleDescription( )
+ {
+ return m_xInnerContext->getAccessibleDescription();
+ }
+
+
+ OUString SAL_CALL OAccessibleContextWrapper::getAccessibleName( )
+ {
+ return m_xInnerContext->getAccessibleName();
+ }
+
+
+ Reference< XAccessibleRelationSet > SAL_CALL OAccessibleContextWrapper::getAccessibleRelationSet( )
+ {
+ return baseGetAccessibleRelationSet();
+ }
+
+
+ Reference< XAccessibleStateSet > SAL_CALL OAccessibleContextWrapper::getAccessibleStateSet( )
+ {
+ return m_xInnerContext->getAccessibleStateSet();
+ }
+
+
+ Locale SAL_CALL OAccessibleContextWrapper::getLocale( )
+ {
+ return m_xInnerContext->getLocale();
+ }
+
+
+ void OAccessibleContextWrapper::notifyTranslatedEvent( const AccessibleEventObject& _rEvent )
+ {
+ if ( m_nNotifierClient )
+ AccessibleEventNotifier::addEvent( m_nNotifierClient, _rEvent );
+ }
+
+
+ void SAL_CALL OAccessibleContextWrapper::addAccessibleEventListener( const Reference< XAccessibleEventListener >& _rxListener )
+ {
+ ::osl::MutexGuard aGuard( m_aMutex );
+ if ( !m_nNotifierClient )
+ m_nNotifierClient = AccessibleEventNotifier::registerClient( );
+ AccessibleEventNotifier::addEventListener( m_nNotifierClient, _rxListener );
+ }
+
+
+ void SAL_CALL OAccessibleContextWrapper::removeAccessibleEventListener( const Reference< XAccessibleEventListener >& _rxListener )
+ {
+ ::osl::MutexGuard aGuard( m_aMutex );
+ if ( m_nNotifierClient )
+ {
+ if ( 0 == AccessibleEventNotifier::removeEventListener( m_nNotifierClient, _rxListener ) )
+ {
+ AccessibleEventNotifier::TClientId nId( m_nNotifierClient );
+ m_nNotifierClient = 0;
+ AccessibleEventNotifier::revokeClient( nId );
+ }
+ }
+ }
+
+
+ void SAL_CALL OAccessibleContextWrapper::disposing()
+ {
+ AccessibleEventNotifier::TClientId nClientId( 0 );
+
+ // --- <mutex lock> -----------------------------------------
+ {
+ ::osl::MutexGuard aGuard( m_aMutex );
+
+ // prepare notifying our AccessibleListeners
+ if ( m_nNotifierClient )
+ {
+ nClientId = m_nNotifierClient;
+ m_nNotifierClient = 0;
+ }
+ }
+ // --- </mutex lock> -----------------------------------------
+
+ // let the base class do
+ OAccessibleContextWrapperHelper::dispose();
+
+ // notify the disposal
+ if ( nClientId )
+ AccessibleEventNotifier::revokeClientNotifyDisposing( nClientId, *this );
+ }
+} // namespace accessibility
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */