package test;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import javafx.application.Platform;
import javafx.collections.ObservableList;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import javax.swing.*;

public class MainFrame extends JFrame {

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                new MainFrame();
            }
        });
    }

    public MainFrame() {
        JPanel contentPane = new JPanel();
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setContentPane(contentPane);
        JButton openButton = new JButton("Open WebView Tabs");
        openButton.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                new PopupFrame();
            }
        });
        contentPane.add(openButton);
        this.pack();
        this.setLocationRelativeTo(null);
        this.setVisible(true);
    }

    public static class PopupFrame extends JFrame {
        public PopupFrame() {
            this.setContentPane(createTabbedPane());
            this.setSize(new Dimension(400, 300));
            this.setLocationRelativeTo(null);
            this.setVisible(true);
        }
        
        private JTabbedPane createTabbedPane() {
            JTabbedPane tabbedPane = new JTabbedPane();
            JComponent panel1 = new WebBrowserPanel("Tab #1");
            tabbedPane.addTab("Tab 1", null, panel1, "");

            JComponent panel2 = new WebBrowserPanel("Tab #2");
            tabbedPane.addTab("Tab 2", null, panel2, "");

            JComponent panel3 = new WebBrowserPanel("Tab #3");
            tabbedPane.addTab("Tab 3", null, panel3, "");

            return tabbedPane;
        }
    }
}

class WebBrowserPanel extends JPanel {
    private Stage stage;
    private WebView browser;
    private JFXPanel jfxPanel;
    private JTextField urlInputField;
    private WebEngine webEngine;

    public WebBrowserPanel(final String tabName) {
        this.addComponentListener(new ComponentAdapter() {
            @Override
            public void componentHidden(ComponentEvent e) {
                System.out.println(tabName + " hidden");
                resetComponents();
            }

            @Override
            public void componentShown(ComponentEvent e) {
                System.out.println(tabName + " shown");
                initComponents();
            }
        
        });
    }

    private void resetComponents() {
        if (jfxPanel != null && urlInputField != null) {
            remove(jfxPanel);
            remove(urlInputField);
        }
        
        stage = null;
        browser = null;
        jfxPanel = null;
        urlInputField = null;
        webEngine = null;
    }
    
    private void initComponents() {
        jfxPanel = new JFXPanel();
        createScene();

        urlInputField = new JTextField("http://www.oracle.com");
        urlInputField.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                Platform.runLater(new Runnable() {
                    public void run() {
                        webEngine.load(urlInputField.getText());
                    }
                });
            }
        });

        setLayout(new BorderLayout());
        add(jfxPanel, BorderLayout.CENTER);
        add(urlInputField, BorderLayout.NORTH);
    }

    private void createScene() {
        Platform.runLater(new Runnable() {
            public void run() {
                Group root = new Group();
                Scene scene = new Scene(root);
                browser = new WebView();
                webEngine = browser.getEngine();
                webEngine.load(urlInputField.getText());
                ObservableList<Node> children = root.getChildren();
                children.add(browser);
                jfxPanel.setScene(scene);
            }
        });
    }
}