vcl/unx/gtk3/a11y/atklistener.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   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/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  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 .
  18  */
  19
  20 #pragma once
  21
  22 #include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
  23 #include <cppuhelper/implbase.hxx>
  24
  25 #include <vector>
  26
  27 #include "atkwrapper.hxx"
  28
  29 class AtkListener : public ::cppu::WeakImplHelper< css::accessibility::XAccessibleEventListener >
  30 {
  31 public:
  32     explicit AtkListener(AtkObjectWrapper * pWrapper);
  33
  34     // XEventListener
  35     virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
  36
  37     // XAccessibleEventListener
  38     virtual void SAL_CALL notifyEvent( const css::accessibility::AccessibleEventObject& aEvent ) override;
  39
  40 private:
  41
  42     AtkObjectWrapper *mpWrapper;
  43     std::vector< css::uno::Reference< css::accessibility::XAccessible > >
  44                       m_aChildList;
  45
  46     virtual ~AtkListener() override;
  47
  48     // Updates the child list held to provide the old IndexInParent on children_changed::remove
  49     void updateChildList(
  50         css::uno::Reference<css::accessibility::XAccessibleContext> const &
  51             pContext);
  52
  53     // Process CHILD_EVENT notifications with a new child added
  54     void handleChildAdded(
  55         const css::uno::Reference< css::accessibility::XAccessibleContext >& rxParent,
  56         const css::uno::Reference< css::accessibility::XAccessible>& rxChild,
  57         sal_Int32 nIndexHint);
  58
  59     // Process CHILD_EVENT notifications with a child removed
  60     void handleChildRemoved(
  61         const css::uno::Reference< css::accessibility::XAccessibleContext >& rxParent,
  62         const css::uno::Reference< css::accessibility::XAccessible>& rxChild,
  63         sal_Int32 nIndexHint);
  64
  65     // Process INVALIDATE_ALL_CHILDREN notification
  66     void handleInvalidateChildren(
  67         const css::uno::Reference< css::accessibility::XAccessibleContext >& rxParent);
  68 };
  69
  70 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */