001/** 002 * 003 * Copyright 2003-2007 Jive Software. 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.jivesoftware.smackx.chatstates; 019 020import org.jivesoftware.smack.Chat; 021import org.jivesoftware.smack.MessageListener; 022 023/** 024 * Events for when the state of a user in a chat changes. 025 * 026 * @author Alexander Wenckus 027 */ 028public interface ChatStateListener extends MessageListener { 029 030 /** 031 * Fired when the state of a chat with another user changes. 032 * 033 * @param chat the chat in which the state has changed. 034 * @param state the new state of the participant. 035 */ 036 void stateChanged(Chat chat, ChatState state); 037}