How to bridge between java and javascript?

Question

JavaScript

Hello, I am writing a javafx application in which I receive data from the server and send it to a webView

webView.getEngine().getLoadWorker().stateProperty().addListener((observable, oldValue, newValue) -> {
                    if (newValue == Worker.State.SUCCEEDED) {
                        JSObject jsObject = (JSObject)webView.getEngine().executeScript("window");
                        jsObject.call("initialize", jsonArray);
                    }
                });

How can I get some event from javascript in java? Well, from here

<select id="cat_select" onchange="changeEventHandlerCatWidget(event);">
                    <option value="0">Все</option>
                    <option value="1">продукты</option>
                    <option value="2">изделия</option>
                </select>

Answer 1

org.w3c.dom.Document document = webView.getEngine().getDocument();
                        org.w3c.dom.Element el = document.getElementById("places_select");
                        ((EventTarget) el).addEventListener("change", this, false);

got it all figured out