| /************************************************************** |
| * |
| * 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 org.openoffice.accessibility.misc; |
| |
| import com.sun.star.lang.EventObject; |
| |
| import com.sun.star.accessibility.AccessibleEventObject; |
| import com.sun.star.accessibility.XAccessibleEventBroadcaster; |
| import com.sun.star.accessibility.XAccessibleEventListener; |
| |
| /** |
| * |
| */ |
| public class AccessibleEventMulticaster implements XAccessibleEventListener { |
| |
| private final XAccessibleEventListener a; |
| private final XAccessibleEventListener b; |
| |
| /** Creates a new instance of AccessibleEventMulticaster */ |
| protected AccessibleEventMulticaster(XAccessibleEventListener a, |
| XAccessibleEventListener b) { |
| this.a = a; |
| this.b = b; |
| } |
| |
| protected XAccessibleEventListener remove(XAccessibleEventListener l) { |
| if (l == a) |
| return b; |
| if (l == b) |
| return a; |
| XAccessibleEventListener a2 = remove(a, l); |
| XAccessibleEventListener b2 = remove(b, l); |
| if (a2 == a && b2 == b) { |
| return this; // not found |
| } |
| return add(a2, b2); |
| } |
| |
| public void notifyEvent(AccessibleEventObject accessibleEventObject) { |
| a.notifyEvent(accessibleEventObject); |
| b.notifyEvent(accessibleEventObject); |
| } |
| |
| public void disposing(EventObject eventObject) { |
| a.disposing(eventObject); |
| b.disposing(eventObject); |
| } |
| |
| public static XAccessibleEventListener add(XAccessibleEventListener a, XAccessibleEventListener b) { |
| if (a == null) |
| return b; |
| if (b == null) |
| return a; |
| return new AccessibleEventMulticaster(a,b); |
| } |
| |
| public static XAccessibleEventListener remove(XAccessibleEventListener l, XAccessibleEventListener oldl) { |
| if (l == oldl || l == null) { |
| return null; |
| } else if (l instanceof AccessibleEventMulticaster) { |
| return ((AccessibleEventMulticaster) l).remove(oldl); |
| } else { |
| return l; |
| } |
| } |
| |
| } |