Hangouts Remote Desktop Part VI - Show confirm dialog before retrieving access code

remoting/webapp/background/it2me_helpee_channel.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
  *
  * It2MeHelpeeChannel relays messages between the Hangouts web page (Hangouts)
  * and the It2Me Native Messaging Host (It2MeHost) for the helpee (the Hangouts
  * participant who is receiving remoting assistance).
@@ skipping 262 matching lines @@
 /**
  * Prompts the user before starting the It2Me Native Messaging Host.  This
  * ensures that even if Hangouts is compromised, an attacker cannot start the
  * host without explicit user confirmation.
  *
  * @return {Promise} A promise that resolves when the user clicks accept on the
  *     dialog.
  * @private
  */
 remoting.It2MeHelpeeChannel.prototype.showConfirmDialog_ = function() {
-  /**
-   * @param {function(*=):void} resolve
-   * @param {function(*=):void} reject
-   */
-  return new Promise(function(resolve, reject) {
-    // TODO(kelvinp): The existing implementation doesn't work in the v2 app as
-    // window.confirm is blacklisted. Implement the dialog using
-    // chrome.app.window instead (crbug.com/405139).
-    if (base.isAppsV2()) {
-      resolve();
-    // The unlocalized string will be replaced in (crbug.com/405139).
-    } else if (window.confirm('Accept help?')) {
-      resolve();
-    } else {
-      reject(new Error(remoting.Error.CANCELLED));
-    }
-  });
+  var message = l10n.getTranslationOrError(
+      /*i18n-content*/'HANGOUTS_CONFIRM_DIALOG_MESSAGE');
+
+  if (base.isAppsV2()) {
+    /**
+     * @param {function(*=):void} resolve
+     * @param {function(*=):void} reject
+     */
+    return new Promise(function(resolve, reject) {
+      /** @param {number} result */
+      function confirmDialogCallback(result) {
+        if (result === 1) {
+          resolve();
+        } else {
+          reject(new Error(remoting.Error.CANCELLED));
+        }
+      }
+
+      remoting.MessageWindow.showConfirmWindow(
+          '', // Empty string to use the package name as the dialog title.
+          message,
+          l10n.getTranslationOrError(
+              /*i18n-content*/'HANGOUTS_CONFIRM_DIALOG_ACCEPT'),
+          l10n.getTranslationOrError(
+              /*i18n-content*/'HANGOUTS_CONFIRM_DIALOG_DECLINE'),
+          confirmDialogCallback
+      );
+    });
+  } else if (window.confirm(message)) {
+    return Promise.resolve();
+  } else {
+    return Promise.reject(new Error(remoting.Error.CANCELLED));
+  }
 };
 
 /**
  * @return {Promise} A promise that resolves when the host is initialized.
  * @private
  */
 remoting.It2MeHelpeeChannel.prototype.initializeHost_ = function() {
   /** @type {remoting.It2MeHostFacade} */
   var host = this.host_;
 
@@ skipping 109 matching lines @@
 
   console.error('Error responding to message method:' +
                 (incomingMessage ? incomingMessage.method : 'null') +
                 ' error:' + error);
   this.hangoutPort_.postMessage({
     method: remoting.It2MeHelpeeChannel.HangoutMessageTypes.ERROR,
     message: error,
     request: incomingMessage
   });
 };