Add new version of enrollment screen supporting OAuth.

chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment.js

+// Copyright (c) 2011 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.
+
+cr.define('oobe', function() {
+  /**
+   * Creates a new oobe screen div.
+   * @constructor
+   * @extends {HTMLDivElement}
+   */
+  var OAuthEnrollmentScreen = cr.ui.define('div');
+
+  /**
+   * Registers with Oobe.
+   */
+  OAuthEnrollmentScreen.register = function() {
+    var screen = $('oauth-enrollment');
+    OAuthEnrollmentScreen.decorate(screen);
+    Oobe.getInstance().registerScreen(screen);
+    window.addEventListener('message',
+                            screen.onMessage_.bind(screen), false);
+  };
+
+  /**
+   * Switches between the different steps in the enrollment flow.
+   * @param screen {string} the steps to show, one of "signin", "working",
+   * "error", "success".
+   */
+  OAuthEnrollmentScreen.showStep = function(step) {
+    $('oauth-enrollment').showStep(step);
+  };
+
+  /**
+   * Sets an error message and switches to the error screen.
+   * @param message {string} the error message.
+   * @param retry {bool} whether the retry link should be shown.
+   */
+  OAuthEnrollmentScreen.showError = function(message, retry) {
+    $('oauth-enrollment').showError(message, retry);
+  };
+
+  OAuthEnrollmentScreen.prototype = {
+    __proto__: HTMLDivElement.prototype,
+
+    /**
+     * URL to load in the sign in frame.
+     */
+    signin_url_ : null,
+
+    /**
+     * Enrollment steps with names and buttons to show.
+     */
+    steps_ : [
+      { name: 'signin',
+        button: 'cancel' },
+      { name: 'working',
+        button: 'cancel' },
+      { name: 'error',
+        button: 'cancel' },
+      { name: 'success',
+        button: 'done' }
+    ],
+
+    /** @inheritDoc */
+    decorate: function() {
+      // TODO(altimofeev): add accelerators for the Enterprise Enrollment
+      // screen.
+    },
+
+    /**
+     * Header text of the screen.
+     * @type {string}
+     */
+    get header() {
+      return localStrings.getString('oauthEnrollScreenTitle');
+    },
+
+    /**
+     * Buttons in oobe wizard's button strip.
+     * @type {array} Array of Buttons.
+     */
+    get buttons() {
+      var buttons = [];
+
+      var cancelButton = this.ownerDocument.createElement('button');
+      cancelButton.id = 'oauth-enroll-button-cancel';
+      cancelButton.textContent =
+          localStrings.getString('oauthEnrollCancel');
+      cancelButton.addEventListener('click', function(e) {
+        chrome.send('oauthEnrollClose', []);
+      });
+      buttons.push(cancelButton);
+
+      var doneButton = this.ownerDocument.createElement('button');
+      doneButton.id = 'oauth-enroll-button-done';
+      doneButton.hidden = true;
+      doneButton.textContent =
+          localStrings.getString('oauthEnrollDone');
+      doneButton.addEventListener('click', function(e) {
+        chrome.send('oauthEnrollClose', []);
+      });
+      buttons.push(doneButton);
+
+      return buttons;
+    },
+
+    /**
+     * Event handler that is invoked just before the frame is shown.
+     * @param data {dictionary} Screen init payload, contains the signin frame
+     * URL.
+     */
+    onBeforeShow: function(data) {
+      this.signin_url_ = data.signin_url;
+      $('oauth-enroll-signin-frame').contentWindow.location.href =
+          this.signin_url_;
+      this.showStep('signin');
+    },
+
+    /**
+     * Switches between the different steps in the enrollment flow.
+     * @param screen {string} the steps to show, one of "signin", "working",
+     * "error", "success".
+     */
+    showStep: function(step) {
+      $('oauth-enroll-button-cancel').hidden = true;
+      $('oauth-enroll-button-done').hidden = true;
+      for (var i = 0; i < this.steps_.length; i++) {
+        var the_step = this.steps_[i];
+        var active = (the_step.name == step);
+        $('oauth-enroll-step-' + the_step.name).hidden = !active;
+        if (active) {
+          $('oauth-enroll-button-' + the_step.button).hidden = false;
+        }
+      }
+    },
+
+    /**
+     * Sets an error message and switches to the error screen.
+     * @param message {string} the error message.
+     * @param retry {bool} whether the retry link should be shown.
+     */
+    showError: function(message, retry) {
+      $('oauth-enroll-error-message').textContent = message;
+      $('oauth-enroll-error-retry').hidden = !retry;
+      this.showStep('error');
+    },
+
+    /**
+     * Checks if a given HTML5 message comes from the URL loaded into the signin
+     * frame.
+     * @param m {object} HTML5 message.
+     * @type {bool} whether the message comes from the signin frame.
+     */
+    isSigninMessage_: function(m) {
+      return this.signin_url_ != null &&
+          this.signin_url_.indexOf(m.origin) == 0 &&
+          m.source == $('oauth-enroll-signin-frame').contentWindow;
+    },
+
+    /**
+     * Event handler for HTML5 messages.
+     * @param m {object} HTML5 message.
+     */
+    onMessage_: function(m) {
+      var msg = m.data;
+      if (msg.method == 'completeLogin' && this.isSigninMessage_(m)) {
+        chrome.send('oauthEnrollCompleteLogin', [ msg.email, msg.password ]);
+      }
+    }
+  };
+
+  return {
+    OAuthEnrollmentScreen: OAuthEnrollmentScreen
+  };
+});