sententiaregum-flux-container/lib/util/connect.js

The flux implementation of the sententiaregum project based on facebook/flux

/*
 * This file is part of the Sententiaregum project.
 *
 * (c) Maximilian Bosch <maximilian.bosch.27@gmail.com>
 * (c) Ben Bieler <benjaminbieler2014@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _invariant = require('invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _Dispatcher = require('../dispatcher/Dispatcher');

var _Dispatcher2 = _interopRequireDefault(_Dispatcher);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Util which connects the event hub to the dispatcher.
 *
 * @param {Object.<Object>} eventData The event configuration.
 * @param {Array.<String>}  oldTokens The old event tokens.
 *
 * @returns {Object.<String>} Key-value list from event to dispatch token.
 * @private This is part of the internal API and should not be used directly!
 */
exports.default = function (eventData) {
  var oldTokens = arguments.length <= 1 || arguments[1] === undefined ? [] : arguments[1];

  var tokens = {};

  oldTokens.forEach(function (token) {
    return _Dispatcher2.default.removeListener(token);
  });

  // handle event data and build tokens
  Object.keys(eventData).forEach(function (name) {
    var config = eventData[name];
    (0, _invariant2.default)(typeof config['function'] !== 'undefined', 'Required property "function" missing in event config!');

    tokens[name] = _Dispatcher2.default.addListener(name, function (payload) {
      return config.function(payload);
    }, config.dependencies);
  });

  return tokens;
};