Confirm action service

confirm-action.js

import Service from '@ember/service';
import { setProperties } from '@ember/object';
import { defer } from 'rsvp';

export default Service.extend({
  showPrompt: false,
  title: null,
  message: null,
  
  _deferred: null,

  ask({ title, message }) {
    setProperties(this, {
      _deferred: defer(),
      showPrompt: true,
      title,
      message
    });

    return this._deferred.promise;
  },

  actions: {
    confirm() {
      this._deferred.resolve(true);
      
      setProperties(this, {
        showPrompt: false,
        _deferred: null
      });
    },
    
    cancel() {
      this._deferred.resolve(false);
      
      setProperties(this, {
        showPrompt: false,
        _deferred: null
      });
    }
  }
});