| /************************************************************** |
| * |
| * 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 "AccDescendantManagerEventListener.hxx" |
| #include "AccObjectManagerAgent.hxx" |
| #include "unomsaaevent.hxx" |
| |
| using namespace com::sun::star::uno; |
| using namespace com::sun::star::accessibility; |
| |
| AccDescendantManagerEventListener::AccDescendantManagerEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent) |
| :AccComponentEventListener(pAcc, Agent), |
| pActiveDescendant(NULL) |
| { |
| }
|
|
|
| AccDescendantManagerEventListener::~AccDescendantManagerEventListener() |
| { |
| } |
| |
| /** |
| * Uno's event notifier when event is captured |
| * @param AccessibleEventObject the event object which contains information about event |
| */ |
| void AccDescendantManagerEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) |
| throw (::com::sun::star::uno::RuntimeException) |
| { |
| switch (aEvent.EventId) |
| { |
| case AccessibleEventId::SELECTION_CHANGED: |
| handleSelectionChangedEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::CHILD: |
| handleChildChangedEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED_NOFOCUS: |
| handleChildChangedNoFocusEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::SELECTION_CHANGED_ADD: |
| handleSelectionChangedAddEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::SELECTION_CHANGED_REMOVE: |
| handleSelectionChangedRemoveEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::SELECTION_CHANGED_WITHIN: |
| handleSelectionChangedWithinEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| default: |
| AccComponentEventListener::notifyEvent(aEvent); |
| break; |
| } |
| } |
| |
| /** |
| * handle the CHILD event |
| * @param oldValue the child to be deleted |
| * @param newValue the child to be added |
| */ |
| void AccDescendantManagerEventListener::handleChildChangedEvent(Any oldValue, Any newValue) |
| { |
| |
| Reference< XAccessible > xChild; |
| if( newValue >>= xChild) |
| { |
| //create a new child |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->InsertAccObj( pAcc,pAccessible); |
| pAgent->InsertChildrenAccObj(pAcc); |
| |
| pAgent->NotifyAccEvent(UM_EVENT_CHILD_ADDED, pAcc); |
| |
| } |
| else |
| {} |
| } |
| |
| if (oldValue >>= xChild) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| |
| pAgent->NotifyAccEvent(UM_EVENT_CHILD_REMOVED, pAcc); |
| pAgent->DeleteChildrenAccObj( pAcc ); |
| pAgent->DeleteAccObj( pAcc ); |
| } |
| else |
| {} |
| } |
| |
| } |
| |
| /** |
| * handle the SELECTION_CHANGED event |
| */ |
| void AccDescendantManagerEventListener::handleSelectionChangedEvent(Any oldValue, Any newValue) |
| { |
| bool bSend =false; |
| Reference< XAccessible > xChild; |
| if(newValue >>= xChild ) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| //if the Role is the SC cell ,don't add the selected state. |
| if (pAgent->GetRole(pAcc) != AccessibleRole::TABLE_CELL) |
| { |
| pAgent->IncreaseState( pAcc, AccessibleStateType::SELECTED); |
| } |
| |
| pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED, pAcc); |
| bSend=true; |
| } |
| } |
| if(oldValue >>= xChild ) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->DecreaseState( pAcc, AccessibleStateType::SELECTED); |
| } |
| } |
| if (!bSend) |
| { |
| pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED, pAccessible); |
| } |
| } |
| |
| |
| void AccDescendantManagerEventListener::handleChildChangedNoFocusEvent(Any oldValue, Any newValue) |
| { |
| Reference< XAccessible > xChild; |
| if(newValue >>= xChild ) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| |
| pAgent->InsertAccObj(pAcc,pAccessible); |
| pAgent->InsertChildrenAccObj(pAcc); |
| |
| pActiveDescendant= pAcc; |
| } |
| } |
| if (oldValue >>= xChild) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->DeleteChildrenAccObj( pAcc ); |
| pAgent->DeleteAccObj( pAcc ); |
| } |
| } |
| } |
| |
| bool AccDescendantManagerEventListener::NotifyChildEvent(short nWinEvent,const Any &Value) |
| { |
| Reference< XAccessible > xChild; |
| if(Value >>= xChild ) |
| { |
| if(xChild.is()) |
| { |
| XAccessible* pAcc = xChild.get(); |
| pAgent->NotifyAccEvent(nWinEvent, pAcc); |
| |
| if (pAgent && pAgent->IsStateManageDescendant(pAccessible) && ( nWinEvent == UM_EVENT_SELECTION_CHANGED_REMOVE) ) |
| { |
| pAgent->DeleteAccObj( pAcc ); |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| void AccDescendantManagerEventListener::handleSelectionChangedAddEvent(const Any& /*oldValue*/, const Any &newValue) |
| { |
| if(NotifyChildEvent(UM_EVENT_SELECTION_CHANGED_ADD,newValue)) |
| { |
| return ; |
| } |
| pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED_ADD,pAccessible); |
| } |
| void AccDescendantManagerEventListener::handleSelectionChangedRemoveEvent(const Any& /*oldValue*/, const Any &newValue) |
| { |
| if(NotifyChildEvent(UM_EVENT_SELECTION_CHANGED_REMOVE,newValue)) |
| { |
| return ; |
| } |
| pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED_REMOVE,pAccessible); |
| } |
|
|
| void AccDescendantManagerEventListener::handleSelectionChangedWithinEvent(const Any& /*oldValue*/, const Any &newValue) |
| { |
| if(NotifyChildEvent(UM_EVENT_SELECTION_CHANGED_WITHIN,newValue)) |
| { |
| return ; |
| } |
| pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED_WITHIN,pAccessible); |
| } |
| |