| /************************************************************** |
| * |
| * 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. |
| * |
| *************************************************************/ |
| |
| package ov; |
| |
| import com.sun.star.accessibility.AccessibleEventObject; |
| import com.sun.star.accessibility.XAccessibleContext; |
| import com.sun.star.accessibility.XAccessibleEventBroadcaster; |
| import com.sun.star.accessibility.XAccessibleEventListener; |
| import com.sun.star.lang.EventObject; |
| import com.sun.star.uno.UnoRuntime; |
| |
| /** Base class for object views that regsiters as accessibility event |
| listener. |
| */ |
| abstract class ListeningObjectView |
| extends ObjectView |
| implements XAccessibleEventListener |
| { |
| public ListeningObjectView (ObjectViewContainer aContainer) |
| { |
| super (aContainer); |
| } |
| |
| /** Add this object as event listener at the broadcasting |
| accessible object. |
| */ |
| public void SetObject (XAccessibleContext xContext) |
| { |
| super.SetObject (xContext); |
| XAccessibleEventBroadcaster xBroadcaster = |
| (XAccessibleEventBroadcaster)UnoRuntime.queryInterface( |
| XAccessibleEventBroadcaster.class, xContext); |
| if (xBroadcaster != null) |
| xBroadcaster.addEventListener (this); |
| } |
| |
| |
| /** Remove this object as event listener from the broadcasting |
| accessible object. |
| */ |
| public void Destroy () |
| { |
| super.Destroy (); |
| XAccessibleEventBroadcaster xBroadcaster = |
| (XAccessibleEventBroadcaster)UnoRuntime.queryInterface( |
| XAccessibleEventBroadcaster.class, mxContext); |
| if (xBroadcaster != null) |
| xBroadcaster.removeEventListener (this); |
| } |
| |
| /** Derived classes have to implement this method to handle incoming |
| events. |
| */ |
| abstract public void notifyEvent (AccessibleEventObject aEvent); |
| |
| /** The disposing event is ignored per default. If a derived class is |
| interested it can overwrite this method. |
| */ |
| public void disposing (EventObject aEvent) |
| { |
| } |
| } |