BrowserLauncher.java

/*
 Violet - A program for editing UML diagrams.

 Copyright (C) 2007 Cay S. Horstmann (http://horstmann.com)
 Alexandre de Pellegrin (http://alexdp.free.fr);

 This program 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.

 This program 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 this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package com.horstmann.violet.framework.util;

import java.lang.reflect.Method;

public class BrowserLauncher
{

    public static boolean 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
                });
            }
            return true;
        }
        catch (Exception e)
        {
            return false;
        }
    }

}