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

   1 // Copyright (c) 2012 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 /**
   6  * @fileoverview Device reset screen implementation.
   7  */
   8
   9 login.createScreen('ResetScreen', 'reset', function() {
  10   var USER_ACTION_CANCEL_RESET = 'cancel-reset';
  11   var USER_ACTION_RESTART_PRESSED = 'restart-pressed';
  12   var USER_ACTION_LEARN_MORE_PRESSED = 'learn-more-link';
  13   var USER_ACTION_SHOW_CONFIRMATION = 'show-confirmation';
  14   var USER_ACTION_POWERWASH_PRESSED = 'powerwash-pressed';
  15   var USER_ACTION_RESET_CONFIRM_DISMISSED = 'reset-confirm-dismissed';
  16   var CONTEXT_KEY_ROLLBACK_AVAILABLE = 'rollback-available';
  17   var CONTEXT_KEY_ROLLBACK_CHECKED = 'rollback-checked';
  18   var CONTEXT_KEY_IS_OFFICIAL_BUILD = 'is-official-build';
  19   var CONTEXT_KEY_IS_CONFIRMATIONAL_VIEW = 'is-confirmational-view';
  20   var CONTEXT_KEY_SCREEN_STATE = 'screen-state';
  21
  22   return {
  23
  24     /* Possible UI states of the reset screen. */
  25     RESET_SCREEN_UI_STATE: {
  26       REVERT_PROMISE: 'ui-state-revert-promise',
  27       RESTART_REQUIRED: 'ui-state-restart-required',
  28       POWERWASH_PROPOSAL: 'ui-state-powerwash-proposal',
  29       ROLLBACK_PROPOSAL: 'ui-state-rollback-proposal',
  30       ERROR: 'ui-state-error',
  31     },
  32
  33     RESET_SCREEN_STATE: {
  34       RESTART_REQUIRED: 0,
  35       REVERT_PROMISE: 1,
  36       POWERWASH_PROPOSAL: 2,  // supports 2 ui-states
  37       ERROR: 3,
  38     },
  39
  40
  41     /** @override */
  42     decorate: function() {
  43       var self = this;
  44
  45       this.declareUserAction($('powerwash-help-link'),
  46                              { action_id: USER_ACTION_LEARN_MORE_PRESSED,
  47                                event: 'click'
  48                              });
  49       this.declareUserAction($('reset-confirm-dismiss'),
  50                              { action_id: USER_ACTION_RESET_CONFIRM_DISMISSED,
  51                                event: 'click'
  52                              });
  53       this.declareUserAction($('reset-confirm-commit'),
  54                              { action_id: USER_ACTION_POWERWASH_PRESSED,
  55                                event: 'click'
  56                              });
  57
  58       this.context.addObserver(
  59           CONTEXT_KEY_SCREEN_STATE,
  60           function(state) {
  61             if (state == self.RESET_SCREEN_STATE.RESTART_REQUIRED)
  62               self.ui_state = self.RESET_SCREEN_UI_STATE.RESTART_REQUIRED;
  63             if (state == self.RESET_SCREEN_STATE.REVERT_PROMISE)
  64               self.ui_state = self.RESET_SCREEN_UI_STATE.REVERT_PROMISE;
  65             else if (state == self.RESET_SCREEN_STATE.POWERWASH_PROPOSAL)
  66               self.ui_state = self.RESET_SCREEN_UI_STATE.POWERWASH_PROPOSAL;
  67             self.setDialogView_();
  68             if (state == self.RESET_SCREEN_STATE.REVERT_PROMISE) {
  69               announceAccessibleMessage(
  70                 loadTimeData.getString('resetRevertSpinnerMessage'));
  71             }
  72           }
  73       );
  74
  75       this.context.addObserver(
  76           CONTEXT_KEY_IS_OFFICIAL_BUILD,
  77           function(isOfficial) {
  78             $('powerwash-help-link').setAttribute('hidden', !isOfficial);
  79           }
  80       );
  81       this.context.addObserver(
  82           CONTEXT_KEY_ROLLBACK_CHECKED,
  83           function(rollbackChecked) {
  84             self.setRollbackOptionView();
  85           }
  86       );
  87       this.context.addObserver(
  88           CONTEXT_KEY_ROLLBACK_AVAILABLE,
  89           function(rollbackAvailable) {
  90             self.setRollbackOptionView();
  91           }
  92       );
  93       this.context.addObserver(
  94           CONTEXT_KEY_IS_CONFIRMATIONAL_VIEW,
  95           function(is_confirmational) {
  96             if (is_confirmational) {
  97               console.log(self.context.get(CONTEXT_KEY_SCREEN_STATE, 0));
  98               if (self.context.get(CONTEXT_KEY_SCREEN_STATE, 0) !=
  99                   self.RESET_SCREEN_STATE.POWERWASH_PROPOSAL)
 100               return;
 101               console.log(self);
 102               reset.ConfirmResetOverlay.getInstance().initializePage();
 103             } else {
 104               $('overlay-reset').setAttribute('hidden', true);
 105             }
 106           }
 107       );
 108     },
 109
 110     /**
 111      * Header text of the screen.
 112      * @type {string}
 113      */
 114     get header() {
 115       return loadTimeData.getString('resetScreenTitle');
 116     },
 117
 118     /**
 119      * Buttons in oobe wizard's button strip.
 120      * @type {array} Array of Buttons.
 121      */
 122     get buttons() {
 123       var buttons = [];
 124       var restartButton = this.ownerDocument.createElement('button');
 125       restartButton.id = 'reset-restart-button';
 126       restartButton.textContent = loadTimeData.getString('resetButtonRestart');
 127       this.declareUserAction(restartButton,
 128                              { action_id: USER_ACTION_RESTART_PRESSED,
 129                                event: 'click'
 130                              });
 131       buttons.push(restartButton);
 132
 133       // Button that leads to confirmation pop-up dialog.
 134       var toConfirmButton = this.ownerDocument.createElement('button');
 135       toConfirmButton.id = 'reset-toconfirm-button';
 136       toConfirmButton.textContent =
 137           loadTimeData.getString('resetButtonPowerwash');
 138       this.declareUserAction(toConfirmButton,
 139                              { action_id: USER_ACTION_SHOW_CONFIRMATION,
 140                                event: 'click'
 141                              });
 142       buttons.push(toConfirmButton);
 143
 144       var cancelButton = this.ownerDocument.createElement('button');
 145       cancelButton.id = 'reset-cancel-button';
 146       cancelButton.textContent = loadTimeData.getString('cancelButton');
 147       this.declareUserAction(cancelButton,
 148                              { action_id: USER_ACTION_CANCEL_RESET,
 149                                event: 'click'
 150                              });
 151       buttons.push(cancelButton);
 152
 153       return buttons;
 154     },
 155
 156     /**
 157      * Returns a control which should receive an initial focus.
 158      */
 159     get defaultControl() {
 160       // choose
 161       if (this.context.get(CONTEXT_KEY_SCREEN_STATE,
 162                            this.RESET_SCREEN_STATE.RESTART_REQUIRED) ==
 163           this.RESET_SCREEN_STATE.RESTART_REQUIRED)
 164         return $('reset-restart-button');
 165       if (this.context.get(CONTEXT_KEY_IS_CONFIRMATIONAL_VIEW, false))
 166         return $('reset-confirm-commit');
 167       return $('reset-toconfirm-button');
 168     },
 169
 170     /**
 171      * Cancels the reset and drops the user back to the login screen.
 172      */
 173     cancel: function() {
 174       if (this.context.get(CONTEXT_KEY_IS_CONFIRMATIONAL_VIEW, false)) {
 175         $('reset').send(login.Screen.CALLBACK_USER_ACTED,
 176                         USER_ACTION_RESET_CONFIRM_DISMISSED);
 177         return;
 178       }
 179       this.send(login.Screen.CALLBACK_USER_ACTED, USER_ACTION_CANCEL_RESET);
 180     },
 181
 182     /**
 183      * Event handler that is invoked just before the screen in shown.
 184      * @param {Object} data Screen init payload.
 185      */
 186     onBeforeShow: function(data) {
 187     },
 188
 189     /**
 190       * Sets css style for corresponding state of the screen.
 191       * @private
 192       */
 193     setDialogView_: function(state) {
 194       state = this.ui_state;
 195       var resetOverlay = $('reset-confirm-overlay');
 196       this.classList.toggle(
 197           'revert-promise-view',
 198           state == this.RESET_SCREEN_UI_STATE.REVERT_PROMISE);
 199       this.classList.toggle(
 200           'restart-required-view',
 201           state == this.RESET_SCREEN_UI_STATE.RESTART_REQUIRED);
 202       this.classList.toggle(
 203           'powerwash-proposal-view',
 204           state == this.RESET_SCREEN_UI_STATE.POWERWASH_PROPOSAL);
 205       resetOverlay.classList.toggle(
 206           'powerwash-proposal-view',
 207           state == this.RESET_SCREEN_UI_STATE.POWERWASH_PROPOSAL);
 208       this.classList.toggle(
 209           'rollback-proposal-view',
 210           state == this.RESET_SCREEN_UI_STATE.ROLLBACK_PROPOSAL);
 211       resetOverlay.classList.toggle(
 212           'rollback-proposal-view',
 213           state == this.RESET_SCREEN_UI_STATE.ROLLBACK_PROPOSAL);
 214     },
 215
 216     setRollbackOptionView: function() {
 217       if (this.context.get(CONTEXT_KEY_IS_CONFIRMATIONAL_VIEW, false))
 218         return;
 219       if (this.context.get(CONTEXT_KEY_SCREEN_STATE) !=
 220           this.RESET_SCREEN_STATE.POWERWASH_PROPOSAL)
 221         return;
 222
 223       if (this.context.get(CONTEXT_KEY_ROLLBACK_AVAILABLE, false) &&
 224           this.context.get(CONTEXT_KEY_ROLLBACK_CHECKED, false)) {
 225         // show rollback option
 226         $('reset-toconfirm-button').textContent = loadTimeData.getString(
 227             'resetButtonPowerwashAndRollback');
 228         this.ui_state = this.RESET_SCREEN_UI_STATE.ROLLBACK_PROPOSAL;
 229       } else {
 230         // hide rollback option
 231         $('reset-toconfirm-button').textContent = loadTimeData.getString(
 232             'resetButtonPowerwash');
 233         this.ui_state = this.RESET_SCREEN_UI_STATE.POWERWASH_PROPOSAL;
 234       }
 235       this.setDialogView_();
 236     }
 237   };
 238 });