jaroslav@845: /**
jaroslav@845:  * Back 2 Browser Bytecode Translator
jaroslav@845:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@845:  *
jaroslav@845:  * This program is free software: you can redistribute it and/or modify
jaroslav@845:  * it under the terms of the GNU General Public License as published by
jaroslav@845:  * the Free Software Foundation, version 2 of the License.
jaroslav@845:  *
jaroslav@845:  * This program is distributed in the hope that it will be useful,
jaroslav@845:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@845:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@845:  * GNU General Public License for more details.
jaroslav@845:  *
jaroslav@845:  * You should have received a copy of the GNU General Public License
jaroslav@845:  * along with this program. Look for COPYING file in the top folder.
jaroslav@845:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@845:  */
jaroslav@845: package org.apidesign.bck2brwsr.launcher.impl;
jaroslav@845: 
jaroslav@845: import java.util.List;
jaroslav@845: import java.util.logging.Level;
jaroslav@845: import java.util.logging.Logger;
jaroslav@845: import javafx.application.Application;
jaroslav@845: import javafx.beans.value.ChangeListener;
jaroslav@845: import javafx.beans.value.ObservableValue;
jaroslav@845: import javafx.concurrent.Worker;
jaroslav@845: import javafx.event.ActionEvent;
jaroslav@845: import javafx.event.EventHandler;
jaroslav@845: import javafx.geometry.HPos;
jaroslav@845: import javafx.geometry.Insets;
jaroslav@845: import javafx.geometry.VPos;
jaroslav@845: import javafx.scene.Node;
jaroslav@845: import javafx.scene.Scene;
jaroslav@845: import javafx.scene.control.Button;
jaroslav@845: import javafx.scene.control.TextField;
jaroslav@845: import javafx.scene.layout.ColumnConstraints;
jaroslav@845: import javafx.scene.layout.GridPane;
jaroslav@845: import javafx.scene.layout.Pane;
jaroslav@845: import javafx.scene.layout.Priority;
jaroslav@845: import javafx.scene.layout.VBox;
jaroslav@845: import javafx.scene.web.WebEngine;
jaroslav@845: import javafx.scene.web.WebEvent;
jaroslav@845: import javafx.scene.web.WebView;
jaroslav@845: import javafx.stage.Stage;
jaroslav@845: import javax.swing.JOptionPane;
jaroslav@845: import netscape.javascript.JSObject;
jaroslav@845: 
jaroslav@845: /**
jaroslav@845:  * Demonstrates a WebView object accessing a web page.
jaroslav@845:  *
jaroslav@845:  * @see javafx.scene.web.WebView
jaroslav@845:  * @see javafx.scene.web.WebEngine
jaroslav@845:  */
jaroslav@845: public class FXBrwsr extends Application {
jaroslav@845:     private static final Logger LOG = Logger.getLogger(FXBrwsr.class.getName());
jaroslav@845: 
jaroslav@845:     @Override
jaroslav@845:     public void start(Stage primaryStage) throws Exception {
jaroslav@845:         Pane root = new WebViewPane(getParameters().getUnnamed());
jaroslav@845:         primaryStage.setScene(new Scene(root, 1024, 768));
jaroslav@845:         primaryStage.show();
jaroslav@845:     }
jaroslav@845:     
jaroslav@845:     /**
jaroslav@845:      * Create a resizable WebView pane
jaroslav@845:      */
jaroslav@845:     private class WebViewPane extends Pane {
jaroslav@845:         private final JVMBridge bridge = new JVMBridge();
jaroslav@845: 
jaroslav@845:         public WebViewPane(List<String> params) {
jaroslav@845:             VBox.setVgrow(this, Priority.ALWAYS);
jaroslav@845:             setMaxWidth(Double.MAX_VALUE);
jaroslav@845:             setMaxHeight(Double.MAX_VALUE);
jaroslav@845:             WebView view = new WebView();
jaroslav@845:             view.setMinSize(500, 400);
jaroslav@845:             view.setPrefSize(500, 400);
jaroslav@845:             final WebEngine eng = view.getEngine();
jaroslav@845:             final TextField locationField = new TextField();
jaroslav@845:             LOG.info("params : " + params);
jaroslav@845:             if (params.size() > 0) {
jaroslav@845:                 eng.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>() {
jaroslav@845:                     @Override
jaroslav@845:                     public void changed(ObservableValue<? extends Worker.State> ov, Worker.State t, Worker.State t1) {
jaroslav@845:                         LOG.info("about to init bck2brwsr");
jaroslav@845:                         initBck2Brwsr(eng);
jaroslav@845:                         LOG.info("done init of bck2brwsr");
jaroslav@845:                     }
jaroslav@845:                 });
jaroslav@845:                 LOG.info("loading page " + params.get(0));
jaroslav@845:                 eng.load(params.get(0));
jaroslav@845:                 LOG.info("done loading page ");
jaroslav@845:                 locationField.setText(params.get(0));
jaroslav@845:             }
jaroslav@845:             locationField.setMaxHeight(Double.MAX_VALUE);
jaroslav@845:             Button goButton = new Button("Go");
jaroslav@845:             goButton.setDefaultButton(true);
jaroslav@845:             EventHandler<ActionEvent> goAction = new EventHandler<ActionEvent>() {
jaroslav@845:                 @Override
jaroslav@845:                 public void handle(ActionEvent event) {
jaroslav@845:                     eng.load(locationField.getText().startsWith("http://") ? locationField.getText() : "http://" + locationField.getText());
jaroslav@845:                 }
jaroslav@845:             };
jaroslav@845:             goButton.setOnAction(goAction);
jaroslav@845:             locationField.setOnAction(goAction);
jaroslav@845:             eng.locationProperty().addListener(new ChangeListener<String>() {
jaroslav@845:                 @Override
jaroslav@845:                 public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
jaroslav@845:                     locationField.setText(newValue);
jaroslav@845:                 }
jaroslav@845:             });
jaroslav@845:             eng.setOnAlert(new EventHandler<WebEvent<String>>() {
jaroslav@845:                 @Override
jaroslav@845:                 public void handle(WebEvent<String> t) {
jaroslav@845:                     JOptionPane.showMessageDialog(null, t.getData());
jaroslav@845:                 }
jaroslav@845:             });
jaroslav@845:             GridPane grid = new GridPane();
jaroslav@845:             grid.setVgap(5);
jaroslav@845:             grid.setHgap(5);
jaroslav@845:             GridPane.setConstraints(locationField, 0, 0, 1, 1, HPos.CENTER, VPos.CENTER, Priority.ALWAYS, Priority.SOMETIMES);
jaroslav@845:             GridPane.setConstraints(goButton, 1, 0);
jaroslav@845:             GridPane.setConstraints(view, 0, 1, 2, 1, HPos.CENTER, VPos.CENTER, Priority.ALWAYS, Priority.ALWAYS);
jaroslav@845:             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));
jaroslav@845:             grid.getChildren().addAll(locationField, goButton, view);
jaroslav@845:             getChildren().add(grid);
jaroslav@845:         }
jaroslav@845: 
jaroslav@845:         void initBck2Brwsr(WebEngine webEngine) {
jaroslav@845:             JSObject jsobj = (JSObject) webEngine.executeScript("window");
jaroslav@845:             LOG.info("window: " + jsobj);
jaroslav@845:             System.getProperties().put("webEngine", webEngine);
jaroslav@845:             Object prev = jsobj.getMember("jvmBridge");
jaroslav@845:             if (prev instanceof JSObject) {
jaroslav@845:                 jsobj.setMember("jvmBridge", bridge);
jaroslav@845:                 JSObject jso = (JSObject) prev;
jaroslav@845:                 Object len = jso.getMember("length");
jaroslav@845:                 if (len instanceof Integer) {
jaroslav@845:                     for (int i = 0; i < (Integer) len; i++) {
jaroslav@845:                         Object slt = jso.getSlot(i);
jaroslav@845:                         if (slt instanceof String) {
jaroslav@845:                             try {
jaroslav@845:                                 bridge.loadClass((String) slt);
jaroslav@845:                             } catch (ClassNotFoundException ex) {
jaroslav@845:                                 LOG.log(Level.SEVERE, null, ex);
jaroslav@845:                             }
jaroslav@845:                         }
jaroslav@845:                     }
jaroslav@845:                     LOG.info("bck2brwsr: " + jsobj.getMember("bck2brwsr"));
jaroslav@845:                 }
jaroslav@845:             }
jaroslav@845:         }
jaroslav@845: 
jaroslav@845:         @Override
jaroslav@845:         protected void layoutChildren() {
jaroslav@845:             List<Node> managed = getManagedChildren();
jaroslav@845:             double width = getWidth();
jaroslav@845:             double height = getHeight();
jaroslav@845:             double top = getInsets().getTop();
jaroslav@845:             double right = getInsets().getRight();
jaroslav@845:             double left = getInsets().getLeft();
jaroslav@845:             double bottom = getInsets().getBottom();
jaroslav@845:             for (int i = 0; i < managed.size(); i++) {
jaroslav@845:                 Node child = managed.get(i);
jaroslav@845:                 layoutInArea(child, left, top, width - left - right, height - top - bottom, 0, Insets.EMPTY, true, true, HPos.CENTER, VPos.CENTER);
jaroslav@845:             }
jaroslav@845:         }
jaroslav@845:     }
jaroslav@845:     
jaroslav@845: }