1 /* 2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 interface EventFilter { 28 29 /** 30 * Enumeration for possible values for <code>acceptEvent(AWTEvent ev)</code> method. 31 * @see EventDispatchThread#pumpEventsForFilter 32 */ 33 static enum FilterAction { 34 /** 35 * ACCEPT means that this filter do not filter the event and allows other 36 * active filters to proceed it. If all the active filters accept the event, it 37 * is dispatched by the <code>EventDispatchThread</code> 38 * @see EventDispatchThread#pumpEventsForFilter 39 */ 40 ACCEPT, 41 /** 42 * REJECT means that this filter filter the event. No other filters are queried, 43 * and the event is not dispatched by the <code>EventDispatchedThread</code> 44 * @see EventDispatchThread#pumpEventsForFilter 45 */ 46 REJECT, 47 /** 48 * ACCEPT_IMMEDIATELY means that this filter do not filter the event, no other 49 * filters are queried and to proceed it, and it is dispatched by the 50 * <code>EventDispatchThread</code> 51 * It is not recommended to use ACCEPT_IMMEDIATELY as there may be some active 52 * filters not queried yet that do not accept this event. It is primarily used 53 * by modal filters. 54 * @see EventDispatchThread#pumpEventsForFilter 55 * @see ModalEventFilter 56 */ 57 ACCEPT_IMMEDIATELY 58 }; 59 60 FilterAction acceptEvent(AWTEvent ev); 61 }