SimpleBrowser demo

FXBrowser.java

package view;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.layout.VBoxBuilder;
import javafx.stage.Stage;

public class FXBrowser {
    public static class TestOnClick extends Application {


        @Override
        public void start(Stage stage) throws Exception {
            try {
                SimpleBrowser browser = new SimpleBrowser()
                    .useFirebug(true);

                final TextField location = new TextField("http://stackoverflow.com");

                Button go = new Button("Go");

                go.setOnAction(new EventHandler<ActionEvent>() {
                    @Override
                    public void handle(ActionEvent arg0) {
                        browser.load(location.getText(), new Runnable() {
                            @Override
                            public void run() {
                                System.out.println("---------------");
                                System.out.println(browser.getHTML());
                            }
                        });
                    }
                });


                HBox toolbar  = new HBox();
                toolbar.getChildren().addAll(location, go);

                toolbar.setFillHeight(true);

                VBox vBox = VBoxBuilder.create().children(toolbar, browser)
                    .fillWidth(true)
                    .build();


                Scene scene = new Scene( vBox);

                stage.setScene(scene);
                stage.setWidth(1024);
                stage.setHeight(768);
                stage.show();

                VBox.setVgrow(browser, Priority.ALWAYS);

                browser.load("http://stackoverflow.com");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

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

SimpleBrowser.java

package view;

import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.concurrent.Worker;
import javafx.scene.layout.*;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;

public class SimpleBrowser extends Pane {
    protected final WebView webView = new WebView();
    protected final WebEngine webEngine = webView.getEngine();

    protected boolean useFirebug;

    public WebView getWebView() {
        return webView;
    }

    public WebEngine getEngine() {
        return webView.getEngine();
    }

    public SimpleBrowser load(String location) {
        return load(location, null);
    }

    public SimpleBrowser load(String location, final Runnable onLoad) {
        webEngine.load(location);

        webEngine.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>() {
            @Override
            public void changed(ObservableValue<? extends Worker.State> ov, Worker.State t, Worker.State t1) {
                if (t1 == Worker.State.SUCCEEDED) {
                    if(useFirebug){
                        webEngine.executeScript("if (!document.getElementById('FirebugLite')){E = document['createElement' + 'NS'] && document.documentElement.namespaceURI;E = E ? document['createElement' + 'NS'](E, 'script') : document['createElement']('script');E['setAttribute']('id', 'FirebugLite');E['setAttribute']('src', 'https://getfirebug.com/' + 'firebug-lite.js' + '#startOpened');E['setAttribute']('FirebugLite', '4');(document['getElementsByTagName']('head')[0] || document['getElementsByTagName']('body')[0]).appendChild(E);E = new Image;E['setAttribute']('src', 'https://getfirebug.com/' + '#startOpened');}");
                    }
                    if(onLoad != null){
                        onLoad.run();
                    }
                }
            }
        });

        return this;
    }

    public String getHTML() {
        return (String)webEngine.executeScript("document.getElementsByTagName('html')[0].innerHTML");
    }

    public SimpleBrowser useFirebug(boolean useFirebug) {
        this.useFirebug = useFirebug;
        return this;
    }

    public SimpleBrowser() {
        this(false);
    }

    public SimpleBrowser(boolean useFirebug) {
        this.useFirebug = useFirebug;

        getChildren().add(webView);

        webView.prefWidthProperty().bind(widthProperty());
        webView.prefHeightProperty().bind(heightProperty());
    }
}