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/*
 *  MicroEmulator
 *  Copyright (C) 2001 Bartek Teodorczyk 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.microemu.app.launcher;

import java.util.Vector;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.List;
import javax.microedition.midlet.MIDlet;

import org.microemu.MIDletEntry;
import org.microemu.app.CommonInterface;

public class Launcher extends MIDlet implements CommandListener {

	private static final Command CMD_LAUNCH = new Command("Start", Command.ITEM, 0);;
	
	private static final String NOMIDLETS = "[no midlets]";
	
	private CommonInterface common;

	private List menuList;

	private String midletSuiteName = null;

	private Vector midletEntries = new Vector();

	private MIDlet currentMIDlet = null;

	public Launcher(CommonInterface common) {
		this.common = common;
	}

	public String getSuiteName() {
		return midletSuiteName;
	}

	public void setSuiteName(String midletSuiteName) {
		this.midletSuiteName = midletSuiteName;
	}

	public void addMIDletEntry(MIDletEntry entry) {
		midletEntries.addElement(entry);
	}

	public void removeMIDletEntries() {
		midletEntries.removeAllElements();
	}
	
	public MIDletEntry getSelectedMidletEntry()
	{
		if (menuList != null) {
			int idx = menuList.getSelectedIndex();
			if (!menuList.getString(idx).equals(NOMIDLETS)) {
				return (MIDletEntry) midletEntries.elementAt(idx);
			}
		}

		return null;
	}

	public MIDlet getCurrentMIDlet() {
		return currentMIDlet;
	}

	public void setCurrentMIDlet(MIDlet midlet) {
		currentMIDlet = midlet;
	}

	public void destroyApp(boolean unconditional) {
	}

	public void pauseApp() {
	}

	public void startApp() {
		menuList = new List("Launcher", List.IMPLICIT);
		menuList.addCommand(CMD_LAUNCH);
		menuList.setCommandListener(this);

		if (midletEntries.size() == 0) {
			menuList.append(NOMIDLETS, null);
		} else {
			for (int i = 0; i < midletEntries.size(); i++) {
				menuList.append(((MIDletEntry) midletEntries.elementAt(i))
						.getName(), null);
			}
		}

		Display.getDisplay(this).setCurrent(menuList);
	}

	public void commandAction(Command c, Displayable d) {
		if (d == menuList) {
			if (c == List.SELECT_COMMAND || c == CMD_LAUNCH) {
				MIDletEntry entry = getSelectedMidletEntry();
				if (entry != null) {
					common.startMidlet(entry.getMIDletClass(), null);
				}
			}
		}
	}

}