package nl.tudelft.goal.ut2004.visualizer.gui.action;
   
   import javax.swing.JDialog;
   
   import nl.tudelft.goal.ut2004.visualizer.controller.ServerController;
   import cz.cuni.amis.pogamut.ut2004.server.IUT2004Server;
   import cz.cuni.amis.utils.flag.FlagListener;
   
   /**
   * Action that is active or inactive depending on the state of the connection to
   * the server. When the action is active it will launch a dialoque. This
   * dialoque will be hidden when the connection to the server is lost.
   * 
   * @author mpkorstanje
   * 
   */
  public class ShowServerDependentDialogueAction extends ShowDialogueAction {
  
  	/**
  	 * Constructs the action.
  	 * 
  	 * @param dialog
  	 *            to show when the action is used.
  	 * @param name
  	 *            this action.
  	 * @param description
  	 *            to show when a user hovers on this action.
  	 */
  	public ShowServerDependentDialogueAction(final JDialog dialog, String name,
  			String description) {
  		super(dialog, name, description);
  
  		ServerController controller = ServerController.getInstance();
  		controller.getServerDefinition().getServerFlag()
  				.addListener(new FlagListener<IUT2004Server>() {
  
  					@Override
  					public void flagChanged(IUT2004Server changedValue) {
  						if (changedValue == null) {
  							setEnabled(false);
  							dialog.setVisible(false);
  						} else {
  							setEnabled(true);
  						}
  					}
  				});
  
  		setEnabled(controller.getServer() != null);
  	}
  
  }