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/**************************************************************
*
* 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;
}
}
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