notifications.js

/*
 * Copyright 2014-2018 the original author or authors.
 *
 * 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.
 */

let granted = false;
export default {
  requestPermissions() {
    if ('Notification' in window) {
      granted = (window.Notification.permission === 'granted');
      if (!granted && window.Notification.permission !== 'denied') {
        window.Notification.requestPermission(permission => granted = (permission === 'granted'));
      }
    }
  },

  notify(title, options) {
    if (granted) {
      const note = new window.Notification(title, options);
      if (options.url !== null) {
        note.onclick = () => {
          window.focus();
          window.open(options.url, '_self');
        };
      }
      if (options.timeout > 0) {
        note.onshow = () => setTimeout(() => note.close(), options.timeout);
      }
    }
  }
}