content: package com.japisoft.editix.action.options;
  
  import java.awt.event.ActionEvent;
  import java.io.InputStream;
  import java.net.URL;
  
  import javax.swing.AbstractAction;
  
  import com.japisoft.editix.main.EditixApplicationModel;
  import com.japisoft.editix.ui.EditixFactory;
  import com.japisoft.framework.ui.toolkit.BrowserCaller;
  
  /**
  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 CheckVersionAction extends AbstractAction {
  	
  	public void actionPerformed(ActionEvent e) {
  		try {
  			String version = getLastVersion();
  			if ( !( EditixApplicationModel.getAppVersion().equals( version ) ) ) {
  				EditixFactory.buildAndShowInformationDialog( "You can download the version " + version + " at http://www.editix.com" );
  				BrowserCaller.displayURL( "http://www.editix.com/download.html" );
  			} else
  				EditixFactory.buildAndShowInformationDialog( "You have the last version" );
  		} catch( Throwable th ) {
  			EditixFactory.buildAndShowErrorDialog( "Can't check the last version" );
  		}
  	}
  
  	public static String getLastVersion() throws Exception {
  		URL url = new URL( "http://www.editix.com/editix.ver" );
  		InputStream input = url.openStream();
  		StringBuffer sb = new StringBuffer();
  		int c;
  		while ( ( c = input.read() ) != -1 ) {
  			sb.append( ( char )c );
  		}
  		return sb.toString().trim();
  	}
  	
  }
  