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package webviewsample; import javafx.application.Application; import javafx.application.Platform; import javafx.beans.value.ChangeListener; import javafx.beans.value.ObservableValue; import javafx.collections.ListChangeListener; import javafx.collections.ListChangeListener.Change; import javafx.concurrent.Worker.State; import javafx.event.ActionEvent; import javafx.event.Event; import javafx.event.EventHandler; import javafx.geometry.HPos; import javafx.geometry.Pos; import javafx.geometry.VPos; import javafx.scene.Node; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.ComboBox; import javafx.scene.control.Hyperlink; import javafx.scene.image.Image; import javafx.scene.image.ImageView; import javafx.scene.layout.HBox; import javafx.scene.layout.Priority; import javafx.scene.layout.Region; import javafx.scene.paint.Color; import javafx.scene.web.PopupFeatures; import javafx.scene.web.WebEngine; import javafx.scene.web.WebHistory; import javafx.scene.web.WebHistory.Entry; import javafx.scene.web.WebView; import javafx.stage.Stage; import javafx.util.Callback; import netscape.javascript.JSObject; public class WebViewSample extends Application { private Scene scene; @Override public void start(Stage stage) { // create scene stage.setTitle("Web View"); scene = new Scene(new Browser(), 750, 500, Color.web("#666970")); stage.setScene(scene); // apply CSS style scene.getStylesheets().add("webviewsample/BrowserToolbar.css"); // show stage stage.show(); } public static void main(String[] args) { launch(args); } } class Browser extends Region { private HBox toolBar; private static String[] imageFiles = new String[]{ "product.png", "blog.png", "documentation.png", "partners.png", "help.png" }; private static String[] captions = new String[]{ "Products", "Blogs", "Documentation", "Partners", "Help" }; private static String[] urls = new String[]{ "http://www.oracle.com/products/index.html", "http://blogs.oracle.com/", "http://docs.oracle.com/javase/index.html", "http://www.oracle.com/partners/index.html", WebViewSample.class.getResource("help.html").toExternalForm() }; final ImageView selectedImage = new ImageView(); final Hyperlink[] hpls = new Hyperlink[captions.length]; final Image[] images = new Image[imageFiles.length]; final WebView browser = new WebView(); final WebEngine webEngine = browser.getEngine(); final Button showPrevDoc = new Button("Toggle Previous Docs"); final WebView smallView = new WebView(); final ComboBox comboBox = new ComboBox(); private boolean needDocumentationButton = false; public Browser() { //apply the styles getStyleClass().add("browser"); for (int i = 0; i < captions.length; i++) { // create hyperlinks Hyperlink hpl = hpls[i] = new Hyperlink(captions[i]); Image image = images[i] = new Image(getClass().getResourceAsStream(imageFiles[i])); hpl.setGraphic(new ImageView(image)); final String url = urls[i]; final boolean addButton = (hpl.getText().equals("Documentation")); // process event hpl.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent e) { needDocumentationButton = addButton; webEngine.load(url); } }); } comboBox.setPrefWidth(60); // create the toolbar toolBar = new HBox(); toolBar.setAlignment(Pos.CENTER); toolBar.getStyleClass().add("browser-toolbar"); toolBar.getChildren().add(comboBox); toolBar.getChildren().addAll(hpls); toolBar.getChildren().add(createSpacer()); //set action for the button showPrevDoc.setOnAction(new EventHandler() { @Override public void handle(Event t) { webEngine.executeScript("toggleDisplay('PrevRel')"); } }); smallView.setPrefSize(120, 80); //handle popup windows webEngine.setCreatePopupHandler( new Callback<PopupFeatures, WebEngine>() { @Override public WebEngine call(PopupFeatures config) { smallView.setFontScale(0.8); if (!toolBar.getChildren().contains(smallView)) { toolBar.getChildren().add(smallView); } return smallView.getEngine(); } } ); //process history final WebHistory history = webEngine.getHistory(); history.getEntries().addListener(new ListChangeListener<WebHistory.Entry>(){ @Override public void onChanged(Change<? extends Entry> c) { c.next(); for (Entry e : c.getRemoved()) { comboBox.getItems().remove(e.getUrl()); } for (Entry e : c.getAddedSubList()) { comboBox.getItems().add(e.getUrl()); } } }); //set the behavior for the history combobox comboBox.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent ev) { int offset = comboBox.getSelectionModel().getSelectedIndex() - history.getCurrentIndex(); history.go(offset); } }); // process page loading webEngine.getLoadWorker().stateProperty().addListener( new ChangeListener<State>() { @Override public void changed(ObservableValue<? extends State> ov, State oldState, State newState) { toolBar.getChildren().remove(showPrevDoc); if (newState == State.SUCCEEDED) { JSObject win = (JSObject) webEngine.executeScript("window"); win.setMember("app", new JavaApp()); if (needDocumentationButton) { toolBar.getChildren().add(showPrevDoc); } } } } ); // load the home page webEngine.load("http://www.oracle.com/products/index.html"); //add components getChildren().add(toolBar); getChildren().add(browser); } // JavaScript interface object public class JavaApp { public void exit() { Platform.exit(); } } private Node createSpacer() { Region spacer = new Region(); HBox.setHgrow(spacer, Priority.ALWAYS); return spacer; } @Override protected void layoutChildren() { double w = getWidth(); double h = getHeight(); double tbHeight = toolBar.prefHeight(w); layoutInArea(browser,0,0,w,h-tbHeight,0,HPos.CENTER,VPos.CENTER); layoutInArea(toolBar,0,h-tbHeight,w,tbHeight,0,HPos.CENTER,VPos.CENTER); } @Override protected double computePrefWidth(double height) { return 750; } @Override protected double computePrefHeight(double width) { return 600; } }