message.java

用JAVA编写的基于J2ME的即时消息通信的客户端的程序。用于与JABBER服务器通信

/*
 * Copyright 2004 Grzegorz Grasza [e-mail]
 *
 * This file is part of mobber. Mobber is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by the Free 
 * Software Foundation; either version 2 of the License, or (at your option) any later version.
 * Mobber 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 General Public License for more details.
 * You should have received a copy of the GNU General Public License along with mobber;
 * if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA .
 */

import javax.microedition.lcdui.*;

public class Message extends Form implements CommandListener
{
	Displayable current;
	String jid;
	boolean flee = false;
	public Message()
	{
		super(Label.received);
		addCommand(Action.back);
		addCommand(Action.send);
		addCommand(Action.add);
		addCommand(Action.delmsg);
		setCommandListener(this);
	}
	
	public void add(String jid, String message)
	{
		this.jid = jid;
		String name = (String)mobber.roster.names.get(jid);
		append(new StringItem((name == null ? jid : name) + ':', message));
		if(!mobber.display.getCurrent().equals(this))
		{
			current = mobber.display.getCurrent();
			flee = false;
		}
		mobber.display.setCurrent(this);
		while(size() > 12)
			delete(0);
	}
	public void show()
	{
		current = mobber.display.getCurrent();
		flee = false;
		mobber.display.setCurrent(this);
	}
	public void commandAction(Command c,Displayable s)
	{
		if(c == Action.back)
		{
			if(flee)
				mobber.display.setCurrent(mobber.roster);
			else
			{
				mobber.display.setCurrent(current);
				flee = true;
			}
		}
		else if(c == Action.send)
			mobber.display.setCurrent(new NewMessage (jid));
		else if(c == Action.add)
			mobber.display.setCurrent(new SetContact(jid));
		else
			if(size() != 0)
				delete(0);
	}
};