fastflux/core/action.js

Message driven reactive state management

'use strict';

exports.__esModule = true;
exports.createAction = createAction;

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

var _observableBaseJs = require('./observable/base.js');

var _observableBaseJs2 = _interopRequireDefault(_observableBaseJs);

var _utilsIndexJs = require('../utils/index.js');

/**
 * Creates an observable function that
 * invokes the nested inner function.
 *
 * The inner function may call `emit`.
 *
 * @example
 * let mul = createAction(emit => function (x, y) {
 *   emit(x * y)
 * });
 * mul.subscribe(result => console.log("Result:", result));
 *
 * //> Result: 25
 * mul(5, 5);
 * @param {function(emit: function): function} getRunner
 * @returns {function}
 */

function createAction(getRunner) {
  var runner = getRunner(function (payload) {
    return action.emit(payload);
  });
  var action = function action() {
    runner.apply(undefined, arguments);
  };

  action = _utilsIndexJs.assign(action, _observableBaseJs2['default'].prototype);
  action._listeners = [];

  return action;
}