remoting/webapp/crd/js/crd_auth_dialog.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /** @suppress {duplicate} */
   6 var remoting = remoting || {};
   7
   8 (function() {
   9
  10 'use strict';
  11
  12 var instance_ = null;
  13
  14 /**
  15  * @constructor
  16  * @implements {remoting.Identity.ConsentDialog}
  17  * @param {HTMLElement} rootElement The dialog DOM element.
  18  * @private
  19  */
  20 remoting.AuthDialog = function(rootElement) {
  21   /** @private {HTMLElement} */
  22   this.rootElement_ = rootElement;
  23
  24   /** @private {HTMLElement} */
  25   this.borderElement_ = rootElement.querySelector('#auth-dialog-border');
  26
  27   /** @private {HTMLElement} */
  28   this.authButton_ = rootElement.querySelector('#auth-button');
  29
  30   /** @private {base.Deferred} */
  31   this.onAuthButtonDeferred_ = null;
  32
  33   this.authButton_.addEventListener('click', this.onClick_.bind(this), false);
  34 };
  35
  36 /** @private */
  37 remoting.AuthDialog.prototype.onClick_ = function() {
  38   this.rootElement_.hidden = true;
  39   this.onAuthButtonDeferred_.resolve(null);
  40   this.onAuthButtonDeferred_ = null;
  41 };
  42
  43 /**
  44  * @return {Promise} A Promise object that resolves when the user clicks on the
  45  *   auth button.
  46  */
  47 remoting.AuthDialog.prototype.show = function() {
  48   if (this.isVisible()) {
  49     return Promise.reject('Auth dialog is already showing.');
  50   }
  51   this.rootElement_.hidden = false;
  52   console.assert(this.onAuthButtonDeferred_ === null,
  53                  'Duplicate show() invocation.');
  54   this.onAuthButtonDeferred_ = new base.Deferred();
  55   return this.onAuthButtonDeferred_.promise();
  56 };
  57
  58 /**
  59  * @return {boolean} whether the auth dialog is visible or not.
  60  */
  61 remoting.AuthDialog.prototype.isVisible = function() {
  62   return !this.rootElement_.hidden;
  63 };
  64
  65 /**
  66  * @return {remoting.AuthDialog}
  67  */
  68 remoting.AuthDialog.getInstance = function() {
  69   if (!instance_) {
  70     var rootElement = document.getElementById('auth-dialog');
  71     instance_ = new remoting.AuthDialog(rootElement);
  72   }
  73   return instance_;
  74 };
  75
  76 })();