package envoy.client.ui;

import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;

/**
 * This is a utility class that provides access to a refreshing mechanism for
 * elements that were added without notifying the underlying {@link ListView}.
 * <p>
 * Project: <strong>envoy-client</strong><br>
 * File: <strong>ListViewRefresh.java</strong><br>
 * Created: <strong>16.07.2020</strong><br>
 *
 * @author Leon Hofmeister
 * @since Envoy Client v0.1-beta
 */
public final class ListViewRefresh {

	private ListViewRefresh() {}

	/**
	 * Deeply refreshes a {@code listview}, meaning it recomputes every single of
	 * its {@link ListCell}s.
	 * <p>
	 * While it does work, it is <b>not the most efficient algorithm</b> possible.
	 *
	 * @param toRefresh the listView to refresh
	 * @param <T>       the type of its {@code listcells}
	 * @since Envoy Client v0.1-beta
	 */
	public static <T> void deepRefresh(ListView<T> toRefresh) {
		final var items = toRefresh.getItems();
		toRefresh.setItems(null);
		toRefresh.setItems(items);
	}
}