Avoid potential negative array index access to cached text.
[LibreOffice.git] / winaccessibility / inc / AccTreeEventListener.hxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 * This file incorporates work covered by the following license notice:
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
20 #pragma once
22 #include <stdio.h>
23 #include "AccDescendantManagerEventListener.hxx"
24 #include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
25 #include <com/sun/star/accessibility/XAccessible.hpp>
27 /**
28 * AccTreeEventListener is inherited from AccDescendantManagerEventListener. It handles
29 * the events generated by tree controls. The accessible role is: TREE.
30 * It defines the procedure of specific event handling related with tree components
31 * and provides the detailed support for some related methods.
33 class AccTreeEventListener : public AccDescendantManagerEventListener
35 public:
36 AccTreeEventListener(css::accessibility::XAccessible* pAcc, AccObjectWinManager* pManager);
37 virtual ~AccTreeEventListener() override;
39 // XAccessibleEventListener
40 virtual void SAL_CALL
41 notifyEvent(const css::accessibility::AccessibleEventObject& aEvent) override;
43 //for active descendant changed event
44 virtual void HandleActiveDescendantChangedEvent(css::uno::Any oldValue, css::uno::Any newValue);
47 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */