How to interact with an FXML form in ScalaFx?

Question

Considering this example how do I get or set anything on the form from the Main code?

All we have is a simple Main object like

object Main extends JFXApp {

  val resource = getClass.getResource("/AdoptionForm.fxml")

  val root: jfxs.Parent = jfxf.FXMLLoader.load(resource)

  stage = new PrimaryStage() {
    title = "FXML GridPane Demo"
    scene = new Scene(root)
  }

}

A form defined in FXML.

And a controller class which is never instantiated explicitly.

As far as the controller is a class (not an object) and I don't have a link to its instance in the Main code, how do I access anything on the form?

The final goal I seek to reach is to have an actor that would listen to incoming messages and update the form with the data gotten.

Answer 1

You can get the Controller from the FXML loader.

val loader = new jfxf.FXMLLoader(resource)
val root = loader.load[jfxs.Parent]
val controller = loader.getController[Controller]