solid-ui/lib/signup/signup.js

UI library for writing Solid read-write-web applications

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Signup = Signup;
var _configDefault = _interopRequireDefault(require("./config-default"));
/**
 * Provides functionality for signing up with a Solid provider
 * @module signup
 */

/**
 * Creates a Signup UI manager
 * @class
 */
function Signup(config) {
  this.config = config || _configDefault["default"];
}

/**
 * Sets up an event listener to monitor login messages from child window/iframe
 * @method listen
 * @return {Promise<String>} Event listener promise, resolves to user's WebID
 */
Signup.prototype.listen = function listen() {
  var promise = new Promise(function (resolve, reject) {
    var eventMethod = window.addEventListener ? 'addEventListener' : 'attachEvent';
    var eventListener = window[eventMethod];
    var messageEvent = eventMethod === 'attachEvent' ? 'onmessage' : 'message';
    eventListener(messageEvent, function (e) {
      var u = e.data;
      if (u.slice(0, 5) === 'User:') {
        var user = u.slice(5, u.length);
        if (user && user.length > 0 && user.slice(0, 4) === 'http') {
          return resolve(user);
        } else {
          return reject(user);
        }
      }
    }, true);
  });
  return promise;
};

/**
 * Opens a signup popup window, sets up `listen()`.
 * @method signup
 * @static
 * @param signupUrl {String} Location of a Solid server for user signup.
 * @return {Promise<String>} Returns a listener promise, resolves with signed
 *   up user's WebID.
 */
Signup.prototype.signup = function signup(signupUrl) {
  signupUrl = signupUrl || this.config.signupEndpoint;
  var width = this.config.signupWindowWidth;
  var height = this.config.signupWindowHeight;
  // set borders
  var leftPosition = window.screen.width / 2 - (width / 2 + 10);
  // set title and status bars
  var topPosition = window.screen.height / 2 - (height / 2 + 50);
  var windowTitle = 'Solid signup';
  var windowUrl = signupUrl + '?origin=' + encodeURIComponent(window.location.origin);
  var windowSpecs = 'resizable,scrollbars,status,width=' + width + ',height=' + height + ',left=' + leftPosition + ',top=' + topPosition;
  window.open(windowUrl, windowTitle, windowSpecs);
  var self = this;
  return new Promise(function (resolve) {
    self.listen().then(function (webid) {
      return resolve(webid);
    });
  });
};
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