| // Copyright 2013 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| goog.provide('goog.events.EventId'); |
| |
| |
| |
| /** |
| * A templated class that is used when registering for events. Typical usage: |
| * <code> |
| * /** @type {goog.events.EventId<MyEventObj>} |
| * var myEventId = new goog.events.EventId( |
| * goog.events.getUniqueId(('someEvent')); |
| * |
| * // No need to cast or declare here since the compiler knows the correct |
| * // type of 'evt' (MyEventObj). |
| * something.listen(myEventId, function(evt) {}); |
| * </code> |
| * |
| * @param {string} eventId |
| * @template T |
| * @constructor |
| * @struct |
| * @final |
| */ |
| goog.events.EventId = function(eventId) { |
| /** @const */ this.id = eventId; |
| }; |
| |
| |
| /** |
| * @override |
| */ |
| goog.events.EventId.prototype.toString = function() { |
| return this.id; |
| }; |
