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Diffstat (limited to 'winaccessibility/source/service/AccWindowEventListener.cxx')
-rw-r--r-- | winaccessibility/source/service/AccWindowEventListener.cxx | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/winaccessibility/source/service/AccWindowEventListener.cxx b/winaccessibility/source/service/AccWindowEventListener.cxx new file mode 100644 index 000000000000..7f9e3ba99494 --- /dev/null +++ b/winaccessibility/source/service/AccWindowEventListener.cxx @@ -0,0 +1,152 @@ +/************************************************************** + * + * 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 "AccWindowEventListener.hxx" +#include "AccObjectManagerAgent.hxx" +#include "unomsaaevent.hxx" + +using namespace com::sun::star::uno; +using namespace com::sun::star::accessibility; + +AccWindowEventListener::AccWindowEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent) + :AccEventListener(pAcc, Agent) +{} +AccWindowEventListener::~AccWindowEventListener() +{ +} + +/** + * Uno's event notifier when event is captured + * @param AccessibleEventObject: the event object which contains information about event + */ +void AccWindowEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException) +{ + switch (aEvent.EventId) + { + case AccessibleEventId::CHILD: + handleChildChangedEvent(aEvent.OldValue, aEvent.NewValue); + break; + case AccessibleEventId::VISIBLE_DATA_CHANGED: + handleVisibleDataChangedEvent(); + break; + case AccessibleEventId::BOUNDRECT_CHANGED: + handleBoundrectChangedEvent(); + break; + default: + AccEventListener::notifyEvent(aEvent); + break; + } +} + +/** + * handle the VISIBLE_DATA_CHANGED event + */ +void AccWindowEventListener::handleVisibleDataChangedEvent() +{ + AccEventListener::handleVisibleDataChangedEvent(); +} + +/** + * handle the BOUNDRECT_CHANGED event + */ +void AccWindowEventListener::handleBoundrectChangedEvent() +{ + AccEventListener::handleBoundrectChangedEvent(); +} + +/** + * handle the CHILD event + * @param oldValue the child to be deleted + * @param newValue the child to be added + */ +void AccWindowEventListener::handleChildChangedEvent(Any oldValue, Any newValue) +{ + Reference< XAccessible > xChild; + if( newValue >>= xChild) + { + //create a new child + if(xChild.is()) + { + XAccessible* pAcc = xChild.get(); + //add this child + pAgent->InsertAccObj( pAcc,pAccessible); + //add all oldValue's existing children + pAgent->InsertChildrenAccObj(pAcc); + pAgent->NotifyAccEvent(UM_EVENT_CHILD_ADDED, pAcc); + } + else + {} + } + else if (oldValue >>= xChild) + { + //delete a existing child + if(xChild.is()) + { + XAccessible* pAcc = xChild.get(); + pAgent->NotifyAccEvent(UM_EVENT_CHILD_REMOVED, pAcc); + pAgent->DeleteChildrenAccObj( pAcc ); + //delete this child + pAgent->DeleteAccObj( pAcc ); + } + else + {} + } +} + +/** + * set the new state and fire the MSAA event + * @param state new state id + * @param enable true if state is set, false if state is unset + */ +void AccWindowEventListener::setComponentState(short state, bool enable ) +{ + // only the following state can be fired state event. + switch (state) + { + case AccessibleStateType::ICONIFIED: + // no msaa state + break; + case AccessibleStateType::VISIBLE: + // UNO !VISIBLE == MSAA INVISIBLE + if( enable ) + pAgent->IncreaseState( pAccessible, AccessibleStateType::VISIBLE ); + else + pAgent->DecreaseState( pAccessible, AccessibleStateType::VISIBLE ); + break; + case AccessibleStateType::SHOWING: + // UNO !SHOWING == MSAA OFFSCREEN + if( enable ) + { + pAgent->IncreaseState( pAccessible, AccessibleStateType::SHOWING ); + } + else + pAgent->DecreaseState( pAccessible, AccessibleStateType::SHOWING ); + break; + default: + break; + } +} |