package textinput;

import com.sun.glass.ui.Robot;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
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 TextAreaRobotUndoApp 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.focusedProperty().addListener(new ChangeListener<Boolean>() {
            @Override
            public void changed(ObservableValue<? extends Boolean> observableValue, Boolean aBoolean, Boolean newVal) {

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

                if (newVal) {
                    Robot robot = com.sun.glass.ui.Application.GetApplication().createRobot();
                    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_CONTROL);
                    robot.keyPress(KeyEvent.VK_Z);
                    robot.keyRelease(KeyEvent.VK_Z);
                    robot.keyRelease(KeyEvent.VK_CONTROL);
                }
            }
        });
        HBox root = new HBox(5);
        root.getChildren().add(new Button("Button"));
        root.getChildren().add(textArea);

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