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diff --git a/toolkit/test/accessibility/ChildEventHandler.java b/toolkit/test/accessibility/ChildEventHandler.java
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+/*
+ * 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 .
+ */
+
+import com.sun.star.accessibility.XAccessible;
+import com.sun.star.accessibility.AccessibleEventObject;
+import com.sun.star.uno.UnoRuntime;
+
+import java.io.PrintStream;
+
+class ChildEventHandler
+ extends EventHandler
+{
+ public ChildEventHandler (AccessibleEventObject aEvent, AccessibilityTreeModel aTreeModel)
+ {
+ super (aEvent, aTreeModel);
+ mxOldChild = UnoRuntime.queryInterface(
+ XAccessible.class, aEvent.OldValue);
+ mxNewChild = UnoRuntime.queryInterface(
+ XAccessible.class, aEvent.NewValue);
+ }
+
+ @Override
+ public void PrintOldAndNew (PrintStream out)
+ {
+ if (mxOldChild != null)
+ out.println (" removing child " + mxOldChild);
+ if (mxNewChild != null)
+ out.println (" adding child " + mxNewChild);
+ }
+
+ @Override
+ public void Process ()
+ {
+ // Insertion and removal of children should be mutually exclusive.
+ // But this is a test tool and should take everything into account.
+ if (mxOldChild != null)
+ {
+ maTreeModel.removeNode (mxOldChild.getAccessibleContext());
+ maTreeModel.updateNode (mxEventSource, AccessibleTreeHandler.class);
+ }
+
+ if (mxNewChild != null)
+ {
+ maTreeModel.addChild (mxEventSource, mxNewChild);
+ }
+ }
+
+
+ private final XAccessible mxOldChild;
+ private final XAccessible mxNewChild;
+}