//Prompt.java
//Demonstrates modal dialogs
//Andy Harris, 05/00

import java.awt.*;
import java.awt.event.*;

public class Prompt extends Dialog{

  Label lblMessage = new Label();
  TextField txtResponse = new TextField();
  Button btnOK = new Button("OK");
  EventHandler evt = new EventHandler(this);
  String response = new String("");
  
  public Prompt (Frame parent){
    super(parent, "Message Box", true);
    setLayout(new GridLayout(0,1));
    add(lblMessage);
    add(txtResponse);
    lblMessage.setAlignment(Label.CENTER);
    
    Panel pnlButton = new Panel();
    add(pnlButton);
    pnlButton.setLayout(new FlowLayout());
    pnlButton.add(btnOK);

    btnOK.addActionListener(evt);
    this.addWindowListener(evt);

  } //end constructor

  public void say(String message){
    lblMessage.setText(message);
    txtResponse.setVisible(false);
    this.setLocation(100,100);
    this.setSize(200,200);
    this.setVisible(true);
    //this.pack();
  } // end say

  public void ask(String message){
    lblMessage.setText(message);
    txtResponse.setVisible(true);
    this.setLocation(100,100);
    this.setSize(200,200);
    this.setVisible(true);
  } // end ask  

  public String getResponse(){
    return response;
  } // end getResponse

  private class EventHandler extends WindowAdapter
                             implements ActionListener{
    Dialog theDialog;
    public EventHandler(Dialog d){
      theDialog = d;
    } // end constructor

    public void actionPerformed(ActionEvent e){
      // user clicked on OK button
      theDialog.setVisible(false);
      response = txtResponse.getText();
      
    } // end actionPerformed

    public void windowClosing(WindowEvent e){
      theDialog.setVisible(false);
    } // end windowClosing
  } // end EventHandler def
  
  
} // end prompt class def