MD Settings: Bluetooth polish

chrome/browser/resources/settings/bluetooth_page/bluetooth_device_dialog.js

 // Copyright 2016 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.exportPath('settings');
 
 (function() {
 
 var PairingEventType = chrome.bluetoothPrivate.PairingEventType;
 
@@ skipping 319 matching lines @@
     I18nBehavior,
     settings.BluetoothAddDeviceBehavior,
     settings.BluetoothPairDeviceBehavior,
   ],
 
   properties: {
     /** Which version of this dialog to show (adding or pairing). */
     dialogId: String,
   },
 
+  observers: [
+    'dialogUpdated_(dialogId, pairingEvent)',
+  ],
+
   open: function() {
     this.pinOrPass = '';
     this.getDialog_().showModal();
   },
 
   close: function() {
     var dialog = this.getDialog_();
     if (dialog.open)
       dialog.close();
   },
 
+  /** @private */
+  dialogUpdated_: function() {
+    if (this.showEnterPincode_(this.pairingEvent))
+      this.$$('#pincode').focus();
+    else if (this.showEnterPasskey_(this.pairingEvent))
+      this.$$('#passkey').focus();
+  },
+
   /**
    * @return {!CrDialogElement}
    * @private
    */
   getDialog_: function() {
     return /** @type {!CrDialogElement} */ (this.$.dialog);
   },
 
   /**
    * @param {string} dialogId
@@ skipping 22 matching lines @@
   },
 
   /** @private */
   onDialogCanceled_: function() {
     if (this.dialogId == 'pairDevice')
       this.sendResponse_(chrome.bluetoothPrivate.PairingResponse.CANCEL);
   },
 });
 
 })();