ローカルのWebサーバに置いたFirebug LiteをJavaFXのWebViewで使うサンプル

FirebugSampleApp.java

package sample;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class FirebugSampleApp extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        Parent root = FXMLLoader.load(getClass().getResource("FirebugSampleView.fxml"));
        primaryStage.setTitle("Firebug Sample");
        primaryStage.setScene(new Scene(root));
        primaryStage.show();
    }


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

FirebugSampleView.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.web.WebView?>

<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="800.0" prefWidth="720.0"
            xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1"
        fx:controller="sample.FirebugSampleViewController">
   <top>
      <HBox spacing="10.0" BorderPane.alignment="CENTER">
         <children>
            <TextField fx:id="locationField" HBox.hgrow="ALWAYS" />
            <Button defaultButton="true" mnemonicParsing="false" text="Go" onAction="#handleGoButtonAction" />
            <Button mnemonicParsing="false" text="Firebug" onAction="#handleFirebugButtonAction" />
         </children>
         <padding>
            <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
         </padding>
      </HBox>
   </top>
   <center>
      <WebView fx:id="webView" prefHeight="200.0" prefWidth="200.0" BorderPane.alignment="CENTER" />
   </center>
</BorderPane>

FirebugSampleViewController.java

package sample;

import java.net.URL;
import java.util.ResourceBundle;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.TextField;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

public class FirebugSampleViewController implements Initializable {

    @FXML
    private TextField locationField;

    @FXML
    private WebView webView;

    private WebEngine webEngine;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        webEngine = webView.getEngine();
    }

    public void handleGoButtonAction(ActionEvent event) {
        webEngine.load(locationField.getText());
    }

    public void handleFirebugButtonAction(ActionEvent event) {
        if (webEngine.getDocument() != null) {
            String firebugLiteUrl = "http://localhost:8080/firebug-lite/build/firebug-lite.js#startOpened";
            Document document = webEngine.getDocument();
            Element scriptElement = document.createElement("script");
            scriptElement.setAttribute("type", "text/javascript");
            scriptElement.setAttribute("src", firebugLiteUrl);
            NodeList bodyList = document.getElementsByTagName("body");
            if (bodyList != null && bodyList.getLength() > 0) {
                bodyList.item(0).appendChild(scriptElement);
            }
        }
    }

}