package com.abl.gui;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.*;

//SurveyController:
/** part of Model-View-Controller (and contains Model; may need to separate for complicated applications)
    @version 1/19/2001
    @author  I made this. -- prie, 8/15/98
*/
final public class SurveyController implements ActionListener {
   private SurveyView view = null;

   public SurveyController() {
      Frame system = Console.getFrame();
      if (system != null) {
         view = new SurveyView(system);
         view.connectTo(this);
      } //else use command-line interface
   }

   public void actionPerformed(ActionEvent evt) {
      String command = evt.getActionCommand().intern();
      if (command.equals("Next")) view.setVisible(false);
   }

   public String askUser(String defaultStr) {
      String response = null;
      if (view != null) { //if available, use GUI:
         view.displayModelData(defaultStr); //clean the slate and get user changes
         response = view.getModelData();
      }
      else { //command-line interface: unsupported....
         response = defaultStr;
      }
      /*response = defaultStr; /* for profiling, uncomment this and comment out the above */
      return response;
   }
}