content: package com.japisoft.framework.ui.toolkit;
  
  import java.io.IOException;
  
  import com.japisoft.framework.preferences.Preferences;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  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 3 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, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class BrowserCaller {
  
  	public static boolean displayURL(String url) {
  		String cmd = null;
  		try {
  			Process p = null;
  			if ( isWindowsPlatform() ) {
  				String prefix = Preferences.getPreference( "viewer", "html", WIN_PATH + " " + WIN_FLAG );
  				cmd = prefix + " " + url;
  				p = Runtime.getRuntime().exec( cmd );
  			} else
  			if ( isMacOSXPlatform() ) {
  				String prefix = Preferences.getPreference( "viewer", "html", MAC_PATH );
  				cmd = prefix + " " + url;
  				p = Runtime.getRuntime().exec( cmd );
  			} else {
  				String prefix = Preferences.getPreference( "viewer", "html", UNIX_PATH );
  				//cmd = prefix + "(" + url + ")";
  				cmd = prefix + " " + url;
  				p = Runtime.getRuntime().exec( cmd );
  			}
  		} catch ( IOException x ) {
  			return false;
  		}
  		return true;
  	}
  
  	public static boolean isWindowsPlatform() {
  		String os = System.getProperty( "os.name" );
  		if ( os != null && 
  				( os.toLowerCase().indexOf( WIN_ID ) > -1 ) )
  			return true;
  		else
  			return false;
  	}
  
  	public static boolean isMacOSXPlatform() {
  		String os = System.getProperty( "os.name" );
  		if ( os != null && 
  				( os.toLowerCase().indexOf( MACOSX_ID ) > -1 ) )
  			return true;
  		return false;
  	}
  
  	private static final String MACOSX_ID = "mac os x";
  	private static final String WIN_ID = "windows";
  
  	public static final String WIN_PATH = "rundll32";
  	public static final String WIN_FLAG = "url.dll,FileProtocolHandler";
  	//private static final String UNIX_PATH = "netscape";
  	public static final String UNIX_PATH = "firefox";
  	//private static final String UNIX_FLAG = "-remote openURL";
  	public static final String UNIX_FLAG = "";
  	public static final String MAC_PATH = "open";
  }
  