001/** 002 * 003 * Copyright 2003-2007 Jive Software, 2018 Paul Schaub. 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.chat2.Chat; 021import org.jivesoftware.smack.packet.Message; 022 023/** 024 * Events for when the state of a user in a chat changes. 025 * 026 * @author Alexander Wenckus 027 * @author Paul Schaub 028 */ 029public interface ChatStateListener { 030 031 /** 032 * Fired when the state of a chat with another user changes. 033 * 034 * @param chat the chat in which the state has changed. 035 * @param state the new state of the participant. 036 * @param message the message carrying the chat state. 037 */ 038 void stateChanged(Chat chat, ChatState state, Message message); 039}