#Usage: jjs -fx fxml_example.js

#nashorn simple example using FXML with #javafx

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// See also https://docs.oracle.com/javase/8/javafx/api/javafx/fxml/doc-files/introduction_to_fxml.html

if (! $OPTIONS._fx) {

    print("Usage: jjs -fx fxml_example.js");

    exit(1);

}

// inline FXML document here

var fxml = <<EOF

<?import javafx.scene.*?>

<?import javafx.scene.control.*?>

<?import javafx.scene.layout.*?>

<VBox xmlns:fx="http://javafx.com/fxml">

    <children>

    <!-- ids will be used script later -->

    <HBox>

        <Label text="Your name please:"/>

        <TextField fx:id="nameText" text="Nashorn"/>

    </HBox>

    <Button fx:id="clickButton" text="Click!"/>

    </children>

</VBox>

EOF

// Java and FX classes used

var ByteArrayInputStream = Java.type("java.io.ByteArrayInputStream");

var FXMLLoader = Java.type("javafx.fxml.FXMLLoader");

var Scene = Java.type("javafx.scene.Scene");

function start(stage) {

    var loader = new FXMLLoader();

    // load FXML from a string

    var root = loader.load(new ByteArrayInputStream(fxml.getBytes("UTF-8")));

    // get the button and the text field controls

    var button = root.lookup("#clickButton");

    var textField = root.lookup("#nameText");

    // event handler for button

    var clickCount = 0;

    button.onAction = function() {

        print(textField.text + ", you clicked me: " + ++clickCount + " time(s)");

    }

    var scene = new Scene(root, 300, 275);

    stage.title = "FXML Example";

    stage.scene = scene;

    stage.show();

}