/** * @license * Copyright The Closure Library Authors. * SPDX-License-Identifier: Apache-2.0 */ /** * @fileoverview Definition of the goog.events.EventWrapper interface. */ goog.provide('goog.events.EventWrapper'); goog.requireType('goog.events.EventHandler'); goog.requireType('goog.events.ListenableType'); /** * Interface for event wrappers. * @interface */ goog.events.EventWrapper = function() {}; /** * Adds an event listener using the wrapper on a DOM Node or an object that has * implemented {@link goog.events.EventTarget}. A listener can only be added * once to an object. * * @param {goog.events.ListenableType} src The node to listen to events on. * @param {function(?):?|{handleEvent:function(?):?}|null} listener Callback * method, or an object with a handleEvent function. * @param {boolean=} opt_capt Whether to fire in capture phase (defaults to * false). * @param {Object=} opt_scope Element in whose scope to call the listener. * @param {goog.events.EventHandler=} opt_eventHandler Event handler to add * listener to. */ goog.events.EventWrapper.prototype.listen = function( src, listener, opt_capt, opt_scope, opt_eventHandler) {}; /** * Removes an event listener added using goog.events.EventWrapper.listen. * * @param {goog.events.ListenableType} src The node to remove listener from. * @param {function(?):?|{handleEvent:function(?):?}|null} listener Callback * method, or an object with a handleEvent function. * @param {boolean=} opt_capt Whether to fire in capture phase (defaults to * false). * @param {Object=} opt_scope Element in whose scope to call the listener. * @param {goog.events.EventHandler=} opt_eventHandler Event handler to remove * listener from. */ goog.events.EventWrapper.prototype.unlisten = function( src, listener, opt_capt, opt_scope, opt_eventHandler) {};