How can I embed a Dukescript App into a JavaFX Scene? - javafx

I want to embed a dukescript app inside a Swing App so I think that I have to embed a panel to support JavaFX rendering.
final JFXPanel fxPanel = new JFXPanel();
Scene scene = createScene();
fxPanel.setScene(scene);
To be able to render Dukescript I think that I have to add a Webview so the alreasy existing JavaFX presenter (from html for java) can receive it an use it accordingly.
Group root = new Group();
final WebView browser = new WebView();
final WebEngine webEngine = browser.getEngine();
root.getChildren().add(browser);
And then to use it with Dukescript I think that I should add maven dependency for JavaFx presenters.
<dependency>
<groupId>org.netbeans.html</groupId>
<artifactId>net.java.html.boot.fx</artifactId>
<scope>runtime</scope>
</dependency>
So I think it the desired code should be something like that.
net.java.html.boot.fx.FXBrowsers presenter= new FXBrowsers();
presenter.load(browser ,
"index.html",
Runnable onPageLoad??);
Have you already tried it? Thank you in advance.

the leaflet4j Project has a demo of embedding DukeScript in JavaFX:
https://github.com/dukescript/leaflet4j
It should work the same in Swing, but you'll have to call the JavaFX code on the JavaFX EventQueue, similar to this:
Platform.runLater(new Runnable() {
#Override
public void run() {
webView = new WebView();
FXBrowsers.load(webView, this.getClass().getResource("/demo/test.html"),
new Runnable() {
#Override
public void run() {
try {
DataModel.onPageLoad();
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
);

Related

Getting webpage opened in another tab from hyperlink of current webpage in webview of javafx browser

I have developed a very simplified but fully functional JavaFX web browser for illustrating what I want to ask. Here follows the source code.
public class OpenInNewTab extends Application {
#Override
public void start(Stage primaryStage)
{
TabPane tabPane = new TabPane();
WebView webView = new WebView();
Tab tab = new Tab("Home Tab");
tab.setContent(webView);
tabPane.getTabs().add(tab);
webView.getEngine().load("https://www.google.co.in/?gws_rd=ssl#q=javafx");
BorderPane root = new BorderPane();
root.setTop(tabPane);
Scene scene = new Scene(root, 600, 339);
primaryStage.setTitle("Basic browser");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args)
{
launch(args);
} }
This browser loads a web page from this link. I want that when I click on any of the search results, the clicked hyperlink should open in new tab adjacent to the existing "Home tab".
After searching on the internet extensively, I reached nowhere.
Please help me with relevant code. Thanks.
First of all, you need to find a way to handle all outgoing click events on the displayed page. I've made a helper method to achieve that. It creates an event listener for each link, clicking on which will open a new tab.
private void handleUrls(Document doc) {
NodeList links = doc.getElementsByTagName("a");
for (int i = 0; i < links.getLength(); i++) {
EventTarget eventTarget = (EventTarget) links.item(i);
String link = links.item(i).toString();
eventTarget.addEventListener("click", e -> {
WebView webView = new WebView();
alterWebView(webView);
Tab tab = new Tab(link);
tab.setContent(webView);
tab.setClosable(true);
webView.getEngine().load(link);
tabPane.getTabs().add(tab);
e.preventDefault();
}, false);
}
}
You may want to set a better name for your tab... I've used a link as a makeshift solution, but it's long and messy.
webView.getEngine().load(link);
The alterWebView referenced above is another helper function. It's responsible for tracking the loading progress. Once the Worker does nothing, it will add listeners to all urls.
private void alterWebView(WebView webView) {
WebEngine engine = webView.getEngine();
Worker worker = engine.getLoadWorker();
worker.stateProperty().addListener((oldVal, newVal, o) -> {
if (newVal.equals(State.RUNNING)) {
handleUrls(engine.getDocument());
}
});
}
So basically, the logic behind the code above is as follows:
We track our WebEngine's State until the page is fully loaded and then we add event listeners to every url.
These listeners, when invoked, will create a new WebView, handle it accordingly, and add it to the TabPane inside a new Tab.
And here's the complete, working example based on your code:
public class JavaFXTest extends Application {
private TabPane tabPane;
#Override
public void start(Stage primaryStage) {
tabPane = new TabPane();
WebView webView = new WebView();
alterWebView(webView);
Tab tab = new Tab("Home Tab");
tab.setContent(webView);
tab.setClosable(true);
tabPane.getTabs().add(tab);
webView.getEngine().load("https://www.google.co.in/?gws_rd=ssl#q=javafx");
BorderPane root = new BorderPane();
root.setTop(tabPane);
Scene scene = new Scene(root, 600, 339);
primaryStage.setTitle("Basic browser");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
private void alterWebView(WebView webView) {
WebEngine engine = webView.getEngine();
Worker worker = engine.getLoadWorker();
worker.stateProperty().addListener((oldVal, newVal, o) -> {
if (newVal.equals(State.RUNNING)) {
handleUrls(engine.getDocument());
}
});
}
private void handleUrls(Document doc) {
NodeList links = doc.getElementsByTagName("a");
for (int i = 0; i < links.getLength(); i++) {
EventTarget eventTarget = (EventTarget) links.item(i);
String link = links.item(i).toString();
eventTarget.addEventListener("click", e -> {
WebView webView = new WebView();
alterWebView(webView);
Tab tab = new Tab(link);
tab.setContent(webView);
tab.setClosable(true);
webView.getEngine().load(link);
tabPane.getTabs().add(tab);
e.preventDefault();
}, false);
}
}
}

Embedding a JavaFX application in a second application [duplicate]

This seems like it should be easy, so I must be missing something obvious: I have 4 standalone applications in the same package, us.glenedwards.myPackage,
myClass1 extends Application
myClass2 extends Application
etc...
I need each class to act as its own standalone application. Yet I want to be able to start the other 3 classes from the one I'm in by clicking a link. Android allows me to do this using Intents:
Intent intent = new Intent(this, EditData.class);
overridePendingTransition(R.layout.edit_data_scrollview, R.layout.state);
startActivity(intent);
I've tried starting myClass2 from myClass1 using
myClass2.launch("");
But I get an error, "Application launch must not be called more than once". The only way I can get it to work is if I remove both "extends application" and the start() method from myClass2, which means that myClass2 is no longer a standalone application.
How can I start myClass2, myClass3, or myClass4 from myClass1 with all 4 of them being standalone applications?
You can make this work by calling start(...) directly on a new instance of one of the Application subclasses, but it kind of feels like a bit of a hack, and is contrary to the intended use of the start(...) method. (Just semantically: a method called start in a class called Application should be executed when your application starts, not at some arbitrary point after it is already running.)
You should really think of the start method as the replacement for the main method in a traditional Java application. If you had one application calling another application's main method, you would (hopefully) come to the conclusion that you had structured things incorrectly.
So I would recommend refactoring your design so that your individual components are not application subclasses, but just plain old regular classes:
public class FirstModule {
// can be any Parent subclass:
private BorderPane view ;
public FirstModule() {
// create view; you could also just load some FXML if you use FXML
view = new BorderPane();
// configure view, populate with controls, etc...
}
public Parent getView() {
return view ;
}
// other methods as needed...
}
and, similarly,
public class SecondModule {
private GridPane view ;
public SecondModule {
view = new GridPane();
// etc etc
}
public Parent getView() {
return view ;
}
}
Now you can just do things like
FirstModule firstModule = new FirstModule();
Scene scene = new Scene(firstModule.getView());
Stage stage = new Stage();
stage.setScene(scene);
stage.show();
anywhere you need to do them. So you can create standalone applications for each module:
public class FirstApplication extends Application {
#Override
public void start(Stage primaryStage) {
Scene scene = new Scene(new FirstModule().getView());
primaryStage.setScene(scene);
primaryStage.show();
}
}
or you can instantiate them as part of a bigger application:
public class CompositeModule {
private HBox view ;
public CompositeModule() {
Button first = new Button("First Module");
first.setOnAction(e -> {
Parent view = new FirstModule().getView();
Scene scene = new Scene(view);
Stage stage = new Stage();
stage.initOwner(first.getScene().getWindow());
stage.setScene(scene);
stage.show();
});
Button second = new Button("Second Module");
second.setOnAction(e -> {
Parent view = new SecondModule().getView();
Scene scene = new Scene(view);
Stage stage = new Stage();
stage.initOwner(second.getScene().getWindow());
stage.setScene(scene);
stage.show();
});
HBox view = new HBox(10, first, second);
view.setAlignment(Pos.CENTER);
}
public Parent getView() {
return view ;
}
}
and
public class CompositeApplication extends Application {
#Override
public void start(Stage primaryStage) {
Scene scene = new Scene(new CompositeModule().getView(), 360, 150);
primaryStage.setScene(scene);
primaryStage.show();
}
}
The way I think of this is that Application subclasses represent an entire running application. Consequently it makes sense only to ever instantiate one such class once per JVM, so you should consider these inherently not to be reusable. Move any code you want to reuse into a different class somewhere.
have you tried this?
Runtime.getRuntime().exec("myClass1 [args]"); //put all args as you used in command
Also, handle/catch the exceptions, as needed.
I was right; it was a no-brainer. That's what I get for writing code on 4 hours of sleep:
myClass2 class2 = new myClass2();
try {
class2.start(stage);
} catch (Exception e) { e.printStackTrace(); } }

Problems with Vaadin components

When I execute this simple Vaadin example (auto generated code) with Idea14.
#Override
protected void init(VaadinRequest request) {
final VerticalLayout layout = new VerticalLayout();
layout.setMargin(true);
setContent(layout);
Button button = new Button("Click Me");
button.addClickListener(new Button.ClickListener() {
public void buttonClick(ClickEvent event) {
layout.addComponent(new Label("Thank you for clicking"));
}
});
layout.addComponent(button);
}
I receive this output:
screenshot
I expected a button with CSS.
What did I do wrong?
The browser is not able to download the theme of your application.
Do you have the vaadin-themes dependency added to your project?
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-themes</artifactId>
</dependency>

JavaFX Timeline - How to stop it from elsewhere in class?

first post on here so please be gentle...
I am fairly new to JavaFX and have successfully set up quite a complicated GUI which reads a csv file in order to populate certain components within the GUI.
I'm using a timeline in the intialize function for the GUI Controller which fires a button every second on the GUI - the button calls a function which reads the csv file form disc.. all this is working fine.
When I quit/exit the GUI stage I want to stop the timeline from running... but can't seem to manage this...
I have a small function which loads the Stage and also has an event listener to detect when it's closed... what I'd like to do is be able to close the timeline at the commented line... in the try/catch section.
public void Show_MACD() throws IOException
{
Parent root = FXMLLoader.load(getClass().getResource("MACD Turbo.fxml"));
Scene scene = new Scene(root);
Stage stage = new Stage();
stage.setScene(scene);
stage.setTitle("FX AlgoTrader MACD Turbo");
stage.show();
JavaFX.thisstage=stage;
stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
#Override
public void handle(WindowEvent we) {
LoginController sp=new LoginController();
try {
//how can I stop the timeline here?
sp.Show_Products(); // this loads up another stage - a menu in fact
} catch (IOException ex) {
Logger.getLogger(MACD_Controller.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
//System.out.println("running");
}
Here's the section in the initialize function where the timeline is set up and run from....(this is in the same class as the controller called 'MACD_Controller' which is also home to the 'Show_MACD' function which has a event listener for window close events.. that's kind of where I would like to stop the timeline ie when the window closes)
#Override
public void initialize(URL url, ResourceBundle rb) {
final Timeline timeline = new Timeline(new KeyFrame(Duration.seconds(1), new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent actionEvent)
{
Refresh.fire(); //Refresh is a button on the GUI which calls the csv file
}
}));
timeline.setCycleCount(Timeline.INDEFINITE);
timeline.play();
}
I know I need to somehow create a reference to 'timeline' so that I can use the 'timeline.stop' function... I've tried all sorts of mumbo jumbo but I keep getting an NPE.
I know this is super basic but I'm a bit stuck..
Cheers
Crispin

How to create a modal window in JavaFX 2.1

I can't figure out how to create a modal window in JavaFX. Basically I have file chooser and I want to ask the user a question when they select a file. I need this information in order to parse the file, so the execution needs to wait for the answer.
I've seen this question but I've not been able to find out how to implement this behavior.
In my opinion this is not good solution, because parent window is all time active.
For example if You want open window as modal after click button...
private void clickShow(ActionEvent event) {
Stage stage = new Stage();
Parent root = FXMLLoader.load(
YourClassController.class.getResource("YourClass.fxml"));
stage.setScene(new Scene(root));
stage.setTitle("My modal window");
stage.initModality(Modality.WINDOW_MODAL);
stage.initOwner(
((Node)event.getSource()).getScene().getWindow() );
stage.show();
}
Now Your new window is REALY modal - parent is block.
also You can use
Modality.APPLICATION_MODAL
Here is link to a solution I created earlier for modal dialogs in JavaFX 2.1
The solution creates a modal stage on top of the current stage and takes action on the dialog results via event handlers for the dialog controls.
JavaFX 8+
The prior linked solution uses a dated event handler approach to take action after a dialog was dismissed. That approach was valid for pre-JavaFX 2.2 implementations. For JavaFX 8+ there is no need for event handers, instead, use the new Stage showAndWait() method. For example:
Stage dialog = new Stage();
// populate dialog with controls.
...
dialog.initOwner(parentStage);
dialog.initModality(Modality.APPLICATION_MODAL);
dialog.showAndWait();
// process result of dialog operation.
...
Note that, in order for things to work as expected, it is important to initialize the owner of the Stage and to initialize the modality of the Stage to either WINDOW_MODAL or APPLICATION_MODAL.
There are some high quality standard UI dialogs in JavaFX 8 and ControlsFX, if they fit your requirements, I advise using those rather than developing your own. Those in-built JavaFX Dialog and Alert classes also have initOwner and initModality and showAndWait methods, so that you can set the modality for them as you wish (note that, by default, the in-built dialogs are application modal).
You can create application like my sample. This is only single file JavaFX application.
public class JavaFXApplication1 extends Application {
#Override
public void start(Stage primaryStage) {
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
Stage stage;
stage = new Stage();
final SwingNode swingNode = new SwingNode();
createSwingContent(swingNode);
StackPane pane = new StackPane();
pane.getChildren().add(swingNode);
stage.initModality(Modality.APPLICATION_MODAL);
stage.setTitle("Swing in JavaFX");
stage.setScene(new Scene(pane, 250, 150));
stage.show();
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
private void createSwingContent(final SwingNode swingNode) {
SwingUtilities.invokeLater(() -> {
try {
Path currentRelativePath = Paths.get("");
String s = currentRelativePath.toAbsolutePath().toString();
JasperDesign jasperDesign = JRXmlLoader.load(s + "/src/reports/report1.jrxml");
String query = "SELECT * FROM `accounttype`";
JRDesignQuery jrquery = new JRDesignQuery();
jrquery.setText(query);
jasperDesign.setQuery(jrquery);
JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
JasperPrint JasperPrint = JasperFillManager.fillReport(jasperReport, null, c);
//JRViewer viewer = new JRViewer(JasperPrint);
swingNode.setContent(new JRViewer(JasperPrint));
} catch (JRException ex) {
Logger.getLogger(AccountTypeController.class.getName()).log(Level.SEVERE, null, ex);
}
});
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}

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