Hacky way (relies on singleton) to get FX working. Can attach @On(event=CLICK) and show alert in FX WebView now
2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.bck2brwsr.launcher.impl;
20 import java.util.List;
21 import java.util.logging.Level;
22 import java.util.logging.Logger;
23 import javafx.application.Application;
24 import javafx.beans.value.ChangeListener;
25 import javafx.beans.value.ObservableValue;
26 import javafx.concurrent.Worker;
27 import javafx.event.ActionEvent;
28 import javafx.event.EventHandler;
29 import javafx.geometry.HPos;
30 import javafx.geometry.Insets;
31 import javafx.geometry.VPos;
32 import javafx.scene.Node;
33 import javafx.scene.Scene;
34 import javafx.scene.control.Button;
35 import javafx.scene.control.TextField;
36 import javafx.scene.layout.ColumnConstraints;
37 import javafx.scene.layout.GridPane;
38 import javafx.scene.layout.Pane;
39 import javafx.scene.layout.Priority;
40 import javafx.scene.layout.VBox;
41 import javafx.scene.web.WebEngine;
42 import javafx.scene.web.WebEvent;
43 import javafx.scene.web.WebView;
44 import javafx.stage.Stage;
45 import javax.swing.JOptionPane;
46 import netscape.javascript.JSObject;
49 * Demonstrates a WebView object accessing a web page.
51 * @see javafx.scene.web.WebView
52 * @see javafx.scene.web.WebEngine
54 public class FXBrwsr extends Application {
55 private static final Logger LOG = Logger.getLogger(FXBrwsr.class.getName());
58 public void start(Stage primaryStage) throws Exception {
59 Pane root = new WebViewPane(getParameters().getUnnamed());
60 primaryStage.setScene(new Scene(root, 1024, 768));
65 * Create a resizable WebView pane
67 private class WebViewPane extends Pane {
68 private final JVMBridge bridge = new JVMBridge();
70 public WebViewPane(List<String> params) {
71 VBox.setVgrow(this, Priority.ALWAYS);
72 setMaxWidth(Double.MAX_VALUE);
73 setMaxHeight(Double.MAX_VALUE);
74 WebView view = new WebView();
75 view.setMinSize(500, 400);
76 view.setPrefSize(500, 400);
77 final WebEngine eng = view.getEngine();
78 final TextField locationField = new TextField();
79 LOG.info("params : " + params);
80 if (params.size() > 0) {
81 eng.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>() {
83 public void changed(ObservableValue<? extends Worker.State> ov, Worker.State t, Worker.State t1) {
84 LOG.info("about to init bck2brwsr");
86 LOG.info("done init of bck2brwsr");
89 LOG.info("loading page " + params.get(0));
90 eng.load(params.get(0));
91 LOG.info("done loading page ");
92 locationField.setText(params.get(0));
94 locationField.setMaxHeight(Double.MAX_VALUE);
95 Button goButton = new Button("Go");
96 goButton.setDefaultButton(true);
97 EventHandler<ActionEvent> goAction = new EventHandler<ActionEvent>() {
99 public void handle(ActionEvent event) {
100 eng.load(locationField.getText().startsWith("http://") ? locationField.getText() : "http://" + locationField.getText());
103 goButton.setOnAction(goAction);
104 locationField.setOnAction(goAction);
105 eng.locationProperty().addListener(new ChangeListener<String>() {
107 public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
108 locationField.setText(newValue);
111 eng.setOnAlert(new EventHandler<WebEvent<String>>() {
113 public void handle(WebEvent<String> t) {
114 JOptionPane.showMessageDialog(null, t.getData());
117 GridPane grid = new GridPane();
120 GridPane.setConstraints(locationField, 0, 0, 1, 1, HPos.CENTER, VPos.CENTER, Priority.ALWAYS, Priority.SOMETIMES);
121 GridPane.setConstraints(goButton, 1, 0);
122 GridPane.setConstraints(view, 0, 1, 2, 1, HPos.CENTER, VPos.CENTER, Priority.ALWAYS, Priority.ALWAYS);
123 grid.getColumnConstraints().addAll(new ColumnConstraints(100, 100, Double.MAX_VALUE, Priority.ALWAYS, HPos.CENTER, true), new ColumnConstraints(40, 40, 40, Priority.NEVER, HPos.CENTER, true));
124 grid.getChildren().addAll(locationField, goButton, view);
125 getChildren().add(grid);
128 void initBck2Brwsr(WebEngine webEngine) {
129 JSObject jsobj = (JSObject) webEngine.executeScript("window");
130 LOG.info("window: " + jsobj);
131 System.getProperties().put("webEngine", webEngine);
132 Object prev = jsobj.getMember("jvmBridge");
133 if (prev instanceof JSObject) {
134 jsobj.setMember("jvmBridge", bridge);
135 JSObject jso = (JSObject) prev;
136 Object len = jso.getMember("length");
137 if (len instanceof Integer) {
138 for (int i = 0; i < (Integer) len; i++) {
139 Object slt = jso.getSlot(i);
140 if (slt instanceof String) {
142 bridge.loadClass((String) slt);
143 } catch (ClassNotFoundException ex) {
144 LOG.log(Level.SEVERE, null, ex);
148 LOG.info("bck2brwsr: " + jsobj.getMember("bck2brwsr"));
154 protected void layoutChildren() {
155 List<Node> managed = getManagedChildren();
156 double width = getWidth();
157 double height = getHeight();
158 double top = getInsets().getTop();
159 double right = getInsets().getRight();
160 double left = getInsets().getLeft();
161 double bottom = getInsets().getBottom();
162 for (int i = 0; i < managed.size(); i++) {
163 Node child = managed.get(i);
164 layoutInArea(child, left, top, width - left - right, height - top - bottom, 0, Insets.EMPTY, true, true, HPos.CENTER, VPos.CENTER);