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    1   /*
    2    * Copyright (c) 2005, 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#pumpEventsForFilters(EventFilter)
   32        */
   33       static enum FilterAction {
   34           /**
   35            * ACCEPT means that this filter do not filter the event and allowes 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#pumpEventsForFilters(EventFilter)
   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#pumpEventsForFilters(EventFilter)
   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#pumpEventsForFilters(EventFilter)
   55            * @see ModalEventFilter
   56            */
   57           ACCEPT_IMMEDIATELY
   58       };
   59   
   60       FilterAction acceptEvent(AWTEvent ev);
   61   }

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