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Diffstat (limited to 'accessibility/workben/org/openoffice/accessibility/misc/AccessibleEventMulticaster.java')
-rw-r--r-- | accessibility/workben/org/openoffice/accessibility/misc/AccessibleEventMulticaster.java | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/accessibility/workben/org/openoffice/accessibility/misc/AccessibleEventMulticaster.java b/accessibility/workben/org/openoffice/accessibility/misc/AccessibleEventMulticaster.java new file mode 100644 index 000000000000..f9212e05a35c --- /dev/null +++ b/accessibility/workben/org/openoffice/accessibility/misc/AccessibleEventMulticaster.java @@ -0,0 +1,122 @@ +/************************************************************************* + * + * $RCSfile: AccessibleEventMulticaster.java,v $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (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.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +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; + } + } + +} |