package com.umlet.control;

import java.lang.reflect.Method;
import javax.swing.JOptionPane;

public class BrowserLauncher {

	private static final String errMsg = "Error attempting to launch web browser";

	public static void openURL(String url) {
		String osName = System.getProperty("os.name");
		try {
			if (osName.startsWith("Mac OS")) {
				Class fileMgr = Class.forName("com.apple.eio.FileManager");
				Method openURL = fileMgr.getDeclaredMethod("openURL", new Class[] {String.class});
				openURL.invoke(null, new Object[] {url});
			}
			else if (osName.startsWith("Windows"))
				Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + url);
			else { //assume Unix or Linux
				String[] browsers = {
						"firefox", "opera", "konqueror", "epiphany", "mozilla", "netscape" };
				String browser = null;
				for (int count = 0; count < browsers.length && browser == null; count++)
					if (Runtime.getRuntime().exec(
							new String[] {"which", browsers[count]}).waitFor() == 0)
						browser = browsers[count];
				if (browser == null)
					throw new Exception("Could not find web browser");
				else
					Runtime.getRuntime().exec(new String[] {browser, url});
			}
		}
		catch (Exception e) {
			System.err.println("Error in openURL:" + e.getMessage());
		}
	}
}