/* * This is part of Geomajas, a GIS framework, http://www.geomajas.org/. * * Copyright 2008-2015 Geosparc nv, http://www.geosparc.com/, Belgium. * * The program is available in open source according to the GNU Affero * General Public License. All contributions in this program are covered * by the Geomajas Contributors License Agreement. For full licensing * details, see LICENSE.txt in the project root. */ package org.geomajas.widget.utility.common.client.event; import com.google.gwt.event.shared.HandlerRegistration; /** * Implemented by classes that that trigger {@link EnabledEvent} and {@link DisabledEvent} events. * * @author Jan De Moerloose * */ public interface HasEnabledHandlers { /** * Add a new handler for {@link EnabledEvent} and {@link DisabledEvent} events. * * @param handler The handler to be registered. * @return Returns the handlers registration object. */ HandlerRegistration addEnabledHandler(EnabledHandler handler); /** * Return whether this object is enabled. * * @return true if enabled, false otherwise */ boolean isEnabled(); }