| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/
|
|
|
| #include <com/sun/star/accessibility/XAccessible.hpp> |
| #include <com/sun/star/accessibility/AccessibleStateType.hpp> |
| #include <com/sun/star/accessibility/AccessibleEventId.hpp> |
| #include <com/sun/star/accessibility/AccessibleRole.hpp> |
| #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp> |
|
|
| #include "AccTreeEventListener.hxx" |
| #include "AccObjectManagerAgent.hxx" |
| #include "unomsaaevent.hxx" |
| |
| using namespace com::sun::star::uno; |
| using namespace com::sun::star::accessibility; |
| |
| AccTreeEventListener::AccTreeEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent) |
| :AccDescendantManagerEventListener(pAcc, Agent) |
| {} |
| AccTreeEventListener::~AccTreeEventListener() |
| { |
| } |
| |
| /** |
| * Uno's event notifier when event is captured |
| * @param AccessibleEventObject the event object which contains information about event |
| */ |
| void AccTreeEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException) |
| { |
| switch (aEvent.EventId) |
| { |
| case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED: |
| handleActiveDescendantChangedEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| default: |
| AccDescendantManagerEventListener::notifyEvent(aEvent); |
| break; |
| } |
| } |
| |
| /** |
| * handle the ACTIVE_DESCENDANT_CHANGED event |
| * @param oldValue the child to lose active |
| * @param newValue the child to get active |
| */ |
| void AccTreeEventListener::handleActiveDescendantChangedEvent(Any oldValue, Any newValue) |
| { |
| Reference< XAccessible > xChild; |
| if(newValue >>= xChild ) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->InsertAccObj(pAcc,pAccessible); |
| pAgent->NotifyAccEvent(UM_EVENT_ACTIVE_DESCENDANT_CHANGED, pAcc); |
| pActiveDescendant = pAcc; |
| } |
| } |
| if (oldValue >>= xChild) |
| { |
| //delete an existing child |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->DeleteAccObj( pAcc ); |
| } |
| } |
| |
| } |