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Diffstat (limited to 'winaccessibility/source/service/AccTreeEventListener.cxx')
-rw-r--r-- | winaccessibility/source/service/AccTreeEventListener.cxx | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/winaccessibility/source/service/AccTreeEventListener.cxx b/winaccessibility/source/service/AccTreeEventListener.cxx new file mode 100644 index 000000000..ee3be70ac --- /dev/null +++ b/winaccessibility/source/service/AccTreeEventListener.cxx @@ -0,0 +1,90 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#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 <vcl/svapp.hxx> + +#include <AccTreeEventListener.hxx> +#include <AccObjectManagerAgent.hxx> +#include <unomsaaevent.hxx> + +using namespace com::sun::star::uno; +using namespace com::sun::star::accessibility; + +AccTreeEventListener::AccTreeEventListener(css::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 css::accessibility::AccessibleEventObject& aEvent ) +{ + SolarMutexGuard g; + + 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, m_xAccessible.get()); + pAgent->NotifyAccEvent(UnoMSAAEvent::ACTIVE_DESCENDANT_CHANGED, pAcc); + } + } + if (oldValue >>= xChild) + { + //delete an existing child + if(xChild.is()) + { + XAccessible* pAcc = xChild.get(); + pAgent->DeleteAccObj( pAcc ); + } + } + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |