package examples;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.io.*;

/*
 * @author Kenneth J. Goldman
 * Created: Mar 5, 2007
 *
 *
 */

public class EventRecorder extends EventQueue {
	LinkedList<EventInfo> events = new LinkedList<EventInfo>();
	EventQueue eventQueue = java.awt.Toolkit.getDefaultToolkit().getSystemEventQueue();
	Component toWatch;
	boolean recording;

	public EventRecorder(Component toWatch) {
		this.toWatch = toWatch;
	}

	public void startRecording() {
		events.clear();
		if (!recording) {
			eventQueue.push(this);
			recording = true;
		}
	}

	protected void dispatchEvent(AWTEvent event) {
		if (event instanceof InputEvent) {
			events.addLast(new EventInfo((InputEvent) event, toWatch));
		}
		super.dispatchEvent(event);
	}

	public EventInfo[] stopRecording() {
		if (recording) {
			pop();
			recording = false;
			return events.toArray(new EventInfo[0]);
		}
		return null;
	}

	static class ButtonPanel extends JPanel {
		JToggleButton startButton = new JToggleButton();
		JToggleButton stopButton = new JToggleButton();
		JToggleButton playButton = new JToggleButton();
		ButtonGroup group = new ButtonGroup();
		
		EventRecorder recorder ;
		EventPlayer player;
		
		EventInfo[] events;
		
		ButtonPanel(final Component stage) throws AWTException {
			recorder = new EventRecorder(stage);
			player = new EventPlayer();
			
			setLayout(new FlowLayout());
			startButton.setAction(new AbstractAction("record") {
				public void actionPerformed(ActionEvent ae) {
						recorder.startRecording();
				}
			});
			stopButton.setAction(new AbstractAction("stop") {
				public void actionPerformed(ActionEvent ae) {
						events = recorder.stopRecording();
				}
			});
			playButton.setAction(new AbstractAction("play") {
				public void actionPerformed(ActionEvent ae) {
						player.play(events, stage);
						events = null;
				}
			});
			add(startButton);
			add(stopButton);
			add(playButton);
			group.add(startButton);
			group.add(stopButton);
			group.add(playButton);
		}
	}
	
	@SuppressWarnings("serial")
	static class RecordingFrame extends JFrame {
		RecordingFrame(Component stage) throws AWTException {
			setLayout(new BorderLayout());
			add(new ButtonPanel(stage), BorderLayout.NORTH);
			add(stage, BorderLayout.CENTER);
			add(new JTextField("You can type in here."), BorderLayout.SOUTH);  // just for demonstration
			setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			setSize(300,300);
			setVisible(true);			
		}
	}

	@SuppressWarnings("serial")
	public static void main(String[] args) throws AWTException {
		Scribble s = new Scribble();
		new Scribble.Controller(s);
		new RecordingFrame(s);
	}
}