// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/**
 * @fileoverview Code injected into Gaia sign in page for inline sign in flow.
 * On load stop, it receives a message from the embedder extension with a
 * JavaScript reference to the embedder window. Then upon submit of the sign
 * in form, it posts the username and password to the embedder window.
 * Prototype Only.
 */

(function() {
  var extWindow;

  var $ = function(id) { return document.getElementById(id); };
  var gaiaLoginForm = $('gaia_loginform');

  var onMessage = function(e) {
    extWindow = e.source;
  };
  window.addEventListener('message', onMessage);

  var onLoginSubmit = function(e) {
    if (!extWindow) {
      console.log('ERROR: no initial message received from the gaia ext');
      e.preventDefault();
      return;
    }

    var checkboxElement = $('advanced-box');
    var chooseWhatToSync = checkboxElement && checkboxElement.checked;
    var msg = {method: 'attemptLogin',
               email: gaiaLoginForm['Email'].value,
               password: gaiaLoginForm['Passwd'].value,
               attemptToken: new Date().getTime(),
               chooseWhatToSync: chooseWhatToSync};

    extWindow.postMessage(msg, 'chrome://chrome-signin');
    console.log('Credentials sent');

    return;
  };
  // Overrides the submit handler for the gaia login form.
  gaiaLoginForm.onsubmit = onLoginSubmit;
})();