| /************************************************************** |
| * |
| * 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 "AccListEventListener.hxx" |
| #include "AccObjectManagerAgent.hxx" |
| #include "unomsaaevent.hxx" |
| |
| using namespace com::sun::star::uno; |
| using namespace com::sun::star::accessibility; |
| |
| AccListEventListener::AccListEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent) |
| :AccDescendantManagerEventListener(pAcc, Agent), |
| shouldDeleteChild(true) |
| { |
| }
|
|
|
| AccListEventListener::~AccListEventListener() |
| { |
| } |
| |
| /** |
| * Uno's event notifier when event is captured |
| * @param AccessibleEventObject the event object which contains information about event |
| */ |
| void AccListEventListener::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; |
| case AccessibleEventId::INVALIDATE_ALL_CHILDREN: |
| // Since List items a transient a child events are mostly used |
| // to attach/detach listeners, it is save to ignore it here |
| //TODO: investigate again |
| break; |
| case AccessibleEventId::VALUE_CHANGED: |
| handleValueChangedEvent(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 AccListEventListener::handleActiveDescendantChangedEvent(Any oldValue, Any newValue) |
| { |
| Reference< XAccessible > xChild; |
| |
| if(newValue >>= xChild ) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| |
| // Valueset has cache the child item xacc,Update state if no insert obj |
| sal_Bool bHasCache = pAgent->InsertAccObj(pAcc,pAccessible); |
| if (!bHasCache) |
| { |
| pAgent->UpdateState(pAcc); |
| } |
| |
| pAgent->IncreaseState( pAcc, AccessibleStateType::FOCUSED); |
| |
| pAgent->NotifyAccEvent(UM_EVENT_ACTIVE_DESCENDANT_CHANGED, pAcc); |
| pActiveDescendant= pAcc; |
| } |
| } |
| if (oldValue >>= xChild) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->DeleteAccObj( pAcc ); |
| } |
| } |
| } |
| |
| /** |
| * handle the VALUE_CHANGED event |
| * |
| * @param oldValue the old value of the source of event |
| * @param newValue the new value of the source of event |
| */ |
| void AccListEventListener::handleValueChangedEvent(Any oldValue, Any newValue) |
| { |
| //to enable value changed event |
| if(getParentRole() == AccessibleRole::COMBO_BOX) |
| { |
| XAccessible* pParentAcc = pAgent->GetParentXAccessible(pAccessible); |
| pAgent->UpdateValue(pParentAcc); |
| pAgent->NotifyAccEvent(UM_EVENT_OBJECT_VALUECHANGE, pParentAcc); |
| } |
| } |