polygerrit-ui/app/behaviors/fire-behavior/fire-behavior.js

/**
 * @license
 * Copyright (C) 2019 The Android Open Source Project
 *
 * 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.
 */
(function(window) {
  'use strict';

  window.Gerrit = window.Gerrit || {};

  /** @polymerBehavior Gerrit.FireBehavior */
  Gerrit.FireBehavior = {
    /**
     * Dispatches a custom event with an optional detail value.
     *
     * @param {string} type Name of event type.
     * @param {*=} detail Detail value containing event-specific
     *   payload.
     * @param {{ bubbles: (boolean|undefined), cancelable: (boolean|undefined),
     *     composed: (boolean|undefined) }=}
     *  options Object specifying options.  These may include:
     *  `bubbles` (boolean, defaults to `true`),
     *  `cancelable` (boolean, defaults to false), and
     *  `composed` (boolean, defaults to true).
     * @return {!Event} The new event that was fired.
     * @override
     */
    fire(type, detail, options) {
      options = options || {};
      detail = (detail === null || detail === undefined) ? {} : detail;
      const event = new Event(type, {
        bubbles: options.bubbles === undefined ? true : options.bubbles,
        cancelable: Boolean(options.cancelable),
        composed: options.composed === undefined ? true: options.composed,
      });
      event.detail = detail;
      this.dispatchEvent(event);
      return event;
    },
  };

  // eslint-disable-next-line no-unused-vars
  function defineEmptyMixin() {
    // This is a temporary function.
    // Polymer linter doesn't process correctly the following code:
    // class MyElement extends Polymer.mixinBehaviors([legacyBehaviors], ...) {...}
    // To workaround this issue, the mock mixin is declared in this method.
    // In the following changes, legacy behaviors will be converted to mixins.

    /**
     * @polymer
     * @mixinFunction
     */
    Gerrit.FireMixin = base =>
      class extends base {
      };
  }
})(window);