import com.sun.glass.ui.Robot;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextArea;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;

import java.awt.event.KeyEvent;

public class TextAreaRobotUndoApp2 extends Application {

    private Scene scene;

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) throws Exception {
        stage.setScene(createScene());
        stage.show();
    }

    private Scene createScene() {
        final TextArea textArea = new TextArea();
        textArea.addEventFilter(javafx.scene.input.KeyEvent.KEY_PRESSED,
                new EventHandler<javafx.scene.input.KeyEvent>() {
                    @Override
                    public void handle(javafx.scene.input.KeyEvent event) {
                        System.err.format("key = %s, control = %b, meta = %b, shortcut = %b%n",
                                event.getCode().getName(), event.isControlDown(), event.isMetaDown(), event.isShortcutDown());
                    }
                });
        textArea.focusedProperty().addListener(new ChangeListener<Boolean>() {
            @Override
            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean newVal) {

                final int[] line = {
                        KeyEvent.VK_L, KeyEvent.VK_I, KeyEvent.VK_N, KeyEvent.VK_E
                };

                if (newVal) {
                    try {
                        Robot robot = com.sun.glass.ui.Application.GetApplication().createRobot();
                        for (int i = 0; i < line.length; i++) {
                            robot.keyPress(line[i]);
                            Thread.sleep(500);
                            robot.keyRelease(line[i]);
                            Thread.sleep(500);
                        }

                        robot.keyPress(KeyEvent.VK_BACK_SPACE);
                        Thread.sleep(500);
                        robot.keyRelease(KeyEvent.VK_BACK_SPACE);
                        Thread.sleep(500);
                        robot.keyPress(KeyEvent.VK_META);
                        Thread.sleep(500);
                        robot.keyPress(KeyEvent.VK_Z);
                        Thread.sleep(500);

                        robot.keyRelease(KeyEvent.VK_META);
                        Thread.sleep(500);
                        robot.keyRelease(KeyEvent.VK_Z);
                        Thread.sleep(500);
                    } catch (InterruptedException iex) {
                    }
//                    try {
//                        java.awt.Robot robot = new java.awt.Robot();
//                        robot.delay(500);
//                        for (int i = 0; i < line.length; i++) {
//                            robot.keyPress(line[i]);
//                            robot.keyRelease(line[i]);
//                        }
//
//                        robot.keyPress(KeyEvent.VK_BACK_SPACE);
//                        robot.keyRelease(KeyEvent.VK_BACK_SPACE);
//                        robot.keyPress(KeyEvent.VK_META);
//                        robot.keyPress(KeyEvent.VK_Z);
//
//                        robot.keyRelease(KeyEvent.VK_META);
//                        robot.keyRelease(KeyEvent.VK_Z);
//                    } catch (AWTException e) {
//                        e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
//                    }

                }
            }
        });
        HBox root = new HBox(5);
        root.getChildren().add(new Button("Button"));
        root.getChildren().add(textArea);

        scene = new Scene(root, 1200, 800);
        return scene;
    }
}