Added UI to enable debugging features on CrOS

ui/login/display_manager.js

 // Copyright 2014 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 Display manager for WebUI OOBE and login.
  */
 
 // TODO(xiyuan): Find a better to share those constants.
 /** @const */ var SCREEN_OOBE_NETWORK = 'connect';
 /** @const */ var SCREEN_OOBE_HID_DETECTION = 'hid-detection';
 /** @const */ var SCREEN_OOBE_EULA = 'eula';
+/** @const */ var SCREEN_OOBE_ENABLE_DEBUGGING = 'debugging';
 /** @const */ var SCREEN_OOBE_UPDATE = 'update';
 /** @const */ var SCREEN_OOBE_RESET = 'reset';
 /** @const */ var SCREEN_OOBE_ENROLLMENT = 'oauth-enrollment';
 /** @const */ var SCREEN_OOBE_KIOSK_ENABLE = 'kiosk-enable';
 /** @const */ var SCREEN_OOBE_AUTO_ENROLLMENT_CHECK = 'auto-enrollment-check';
 /** @const */ var SCREEN_GAIA_SIGNIN = 'gaia-signin';
 /** @const */ var SCREEN_ACCOUNT_PICKER = 'account-picker';
 /** @const */ var SCREEN_USER_IMAGE_PICKER = 'user-image';
 /** @const */ var SCREEN_ERROR_MESSAGE = 'error-message';
 /** @const */ var SCREEN_TPM_ERROR = 'tpm-error-message';
 /** @const */ var SCREEN_PASSWORD_CHANGED = 'password-changed';
 /** @const */ var SCREEN_CREATE_SUPERVISED_USER_FLOW =
     'supervised-user-creation';
 /** @const */ var SCREEN_APP_LAUNCH_SPLASH = 'app-launch-splash';
 /** @const */ var SCREEN_CONFIRM_PASSWORD = 'confirm-password';
 /** @const */ var SCREEN_FATAL_ERROR = 'fatal-error';
 /** @const */ var SCREEN_KIOSK_ENABLE = 'kiosk-enable';
 /** @const */ var SCREEN_TERMS_OF_SERVICE = 'terms-of-service';
 /** @const */ var SCREEN_WRONG_HWID = 'wrong-hwid';
 
 /* Accelerator identifiers. Must be kept in sync with webui_login_view.cc. */
 /** @const */ var ACCELERATOR_CANCEL = 'cancel';
+/** @const */ var ACCELERATOR_ENABLE_DEBBUGING = 'debugging';
 /** @const */ var ACCELERATOR_ENROLLMENT = 'enrollment';
 /** @const */ var ACCELERATOR_KIOSK_ENABLE = 'kiosk_enable';
 /** @const */ var ACCELERATOR_VERSION = 'version';
 /** @const */ var ACCELERATOR_RESET = 'reset';
 /** @const */ var ACCELERATOR_FOCUS_PREV = 'focus_prev';
 /** @const */ var ACCELERATOR_FOCUS_NEXT = 'focus_next';
 /** @const */ var ACCELERATOR_DEVICE_REQUISITION = 'device_requisition';
 /** @const */ var ACCELERATOR_DEVICE_REQUISITION_REMORA =
     'device_requisition_remora';
 /** @const */ var ACCELERATOR_DEVICE_REQUISITION_SHARK =
@@ skipping 79 matching lines @@
     SCREEN_USER_IMAGE_PICKER,
     SCREEN_TPM_ERROR,
     SCREEN_PASSWORD_CHANGED,
     SCREEN_TERMS_OF_SERVICE,
     SCREEN_WRONG_HWID,
     SCREEN_CONFIRM_PASSWORD,
     SCREEN_FATAL_ERROR
   ];
 
   /**
+   * Group of screens (screen IDs) where enable debuggingscreen invocation is
+   * available.
+   * @type Array.<string>
+   * @const
+   */
+  var ENABLE_DEBUGGING_AVAILABLE_SCREEN_GROUP = [
+    SCREEN_OOBE_NETWORK,
+    SCREEN_OOBE_EULA,
+    SCREEN_OOBE_UPDATE,
+    SCREEN_ERROR_MESSAGE,

[Nikita (slow), 2014/11/05 17:33:15]

SCREEN_ERROR_MESSAGE may be shown even when there're users on the device i.e.
out-of-box is completed. Are you ok with exposing this functionality outside of
out-of-box flow?

https://code.google.com/p/chromium/issues/detail?id=403165#c13 says
"I think we should start by OOBE-only and then iterate from there."

[zel, 2014/11/11 01:02:28]

Removed.

+    SCREEN_TERMS_OF_SERVICE,
+    SCREEN_WRONG_HWID,
+    SCREEN_FATAL_ERROR
+  ];
+
+  /**
    * Group of screens (screen IDs) that are not participating in
    * left-current-right animation.
    * @type Array.<string>
    * @const
    */
   var NOT_ANIMATED_SCREEN_GROUP = [
-    SCREEN_OOBE_RESET
+    SCREEN_OOBE_ENABLE_DEBUGGING,
+    SCREEN_OOBE_RESET,
   ];
 
 
   /**
    * OOBE screens group index.
    */
   var SCREEN_GROUP_OOBE = 0;
 
   /**
    * Constructor a display manager that manages initialization of screens,
@@ skipping 173 matching lines @@
     /**
      * Handle accelerators.
      * @param {string} name Accelerator name.
      */
     handleAccelerator: function(name) {
       var currentStepId = this.screens_[this.currentStep_];
       if (name == ACCELERATOR_CANCEL) {
         if (this.currentScreen.cancel) {
           this.currentScreen.cancel();
         }
+      } else if (name == ACCELERATOR_ENABLE_DEBBUGING) {
+        if (ENABLE_DEBUGGING_AVAILABLE_SCREEN_GROUP.indexOf(
+                currentStepId) != -1) {
+          chrome.send('toggleEnableDebuggingScreen');
+        }
       } else if (name == ACCELERATOR_ENROLLMENT) {
         if (currentStepId == SCREEN_GAIA_SIGNIN ||
             currentStepId == SCREEN_ACCOUNT_PICKER) {
           chrome.send('toggleEnrollmentScreen');
         } else if (currentStepId == SCREEN_OOBE_NETWORK ||
                    currentStepId == SCREEN_OOBE_EULA) {
           // In this case update check will be skipped and OOBE will
           // proceed straight to enrollment screen when EULA is accepted.
           chrome.send('skipUpdateEnrollAfterEula');
         } else if (currentStepId == SCREEN_OOBE_ENROLLMENT) {
@@ skipping 694 matching lines @@
    */
   DisplayManager.refocusCurrentPod = function() {
     $('pod-row').refocusCurrentPod();
   };
 
   // Export
   return {
     DisplayManager: DisplayManager
   };
 });