JavaFX. Auto-resizing HTML Editor panel node in parent node (авторазмер htmleditor панели)

ResizableHTMLEditor.java

public class ResizableHTMLEditor extends Application {
    private HTMLEditor htmlEditor = new HTMLEditor();
    private static AnchorPane anchorPane = new AnchorPane();
    private Scene scene = new Scene(anchorPane, 420, 565, Color.TRANSPARENT);
    @Override
    public void start(Stage stage) throws Exception {

        htmlEditor.setPrefWidth(360);
        //add listener for change size a html editor, if a window size is changed
        ChangeListener<Number> stageSizeListener = (observable, oldValue, newValue) ->
        {

            //___________TOP NODE
            Node topNode = htmlEditor.lookup(".top-toolbar");
            if (topNode instanceof ToolBar) {
                ToolBar toolBarBar = (ToolBar) topNode;
                toolBarBar.setPrefWidth(anchorPane.getWidth());
            }
            //___________BOTTOM NODE
            Node bottomNode = htmlEditor.lookup(".bottom-toolbar");
            if (bottomNode instanceof ToolBar) {
                ToolBar bottomBar = (ToolBar) bottomNode;
                bottomBar.setPrefWidth(anchorPane.getWidth());
            }
            //----------------
        };

        stage.widthProperty().addListener(stageSizeListener);
        stage.heightProperty().addListener(stageSizeListener);

        // setting indentation so that buttons do not clip, removing blue focus borders
        AnchorPane.setLeftAnchor(htmlEditor, 10.0);
        AnchorPane.setRightAnchor(htmlEditor, 10.0);
        anchorPane.getChildren().addAll(htmlEditor);
        anchorPane.setStyle("-fx-focus-color: transparent; -fx-control-inner-background: transparent ; -fx-faint-focus-color: transparent; -fx-control-inner-background: transparent ;");
        anchorPane.setId("textEditor");
        //run scene
        stage.setScene(scene);
        stage.show();
        stage.setTitle("ResizableHTMLEditor");
    }

    public static AnchorPane textEditor(){
        return anchorPane;
    }
}