Options2: Pull the trigger.

chrome/browser/resources/options2/chromeos/accounts_user_name_edit.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('options.accounts', function() {
+  const Event = cr.Event;
+
+  // Email alias only, assuming it's a gmail address.
+  //   e.g. 'john'
+  //        {name: 'john', email: 'john@gmail.com'}
+  const format1String =
+      '^\\s*([\\w\\.!#\\$%&\'\\*\\+-\\/=\\?\\^`\\{\\|\\}~]+)\\s*$';
+  // Email address only.
+  //   e.g. 'john@chromium.org'
+  //        {name: 'john', email: 'john@chromium.org'}
+  const format2String =
+      '^\\s*([\\w\\.!#\\$%&\'\\*\\+-\\/=\\?\\^`\\{\\|\\}~]+)@' +
+      '([A-Za-z0-9\-]{2,63}\\..+)\\s*$';
+  // Full format.
+  //   e.g. '"John Doe" <john@chromium.org>'
+  //        {name: 'John doe', email: 'john@chromium.org'}
+  const format3String =
+      '^\\s*"{0,1}([^"]+)"{0,1}\\s*' +
+      '<([\\w\\.!#\\$%&\'\\*\\+-\\/=\\?\\^`\\{\\|\\}~]+@' +
+      '[A-Za-z0-9\-]{2,63}\\..+)>\\s*$';
+
+  /**
+   * Creates a new user name edit element.
+   * @param {Object=} opt_propertyBag Optional properties.
+   * @constructor
+   * @extends {HTMLInputElement}
+   */
+  var UserNameEdit = cr.ui.define('input');
+
+  UserNameEdit.prototype = {
+    __proto__: HTMLInputElement.prototype,
+
+    /**
+     * Called when an element is decorated as a user name edit.
+     */
+    decorate: function() {
+      this.pattern = format1String + '|' + format2String + '|' +
+                     format3String;
+
+      this.onkeypress = this.handleKeyPress_.bind(this);
+    },
+
+
+    /**
+     * Parses given str for user info.
+     *
+     * Note that the email parsing is based on RFC 5322 and does not support
+     * IMA (Internationalized Email Address). We take only the following chars
+     * as valid for an email alias (aka local-part):
+     *   - Letters: a–z, A–Z
+     *   - Digits: 0-9
+     *   - Characters: ! # $ % & ' * + - / = ? ^ _ ` { | } ~
+     *   - Dot: . (Note that we did not cover the cases that dot should not
+     *       appear as first or last character and should not appear two or
+     *       more times in a row.)
+     *
+     * @param {string} str A string to parse.
+     * @return {{name: string, email: string}} User info parsed from the string.
+     */
+    parse: function(str) {
+      const format1 = new RegExp(format1String);
+      const format2 = new RegExp(format2String);
+      const format3 = new RegExp(format3String);
+
+      var matches = format1.exec(str);
+      if (matches) {
+        return {
+          name: matches[1],
+          email: matches[1] + '@gmail.com'
+        };
+      }
+
+      matches = format2.exec(str);
+      if (matches) {
+        return {
+          name: matches[1],
+          email: matches[1] + '@' + matches[2]
+        };
+      }
+
+      matches = format3.exec(str);
+      if (matches) {
+        return {
+          name: matches[1],
+          email: matches[2]
+        };
+      }
+
+      return null;
+    },
+
+    /**
+     * Handler for key press event.
+     * @private
+     * @param {!Event} e The keypress event object.
+     */
+    handleKeyPress_: function(e) {
+      // Enter
+      if (e.keyCode == 13) {
+        var user = this.parse(this.value);
+        if (user) {
+          var e = new Event('add');
+          e.user = user;
+          this.dispatchEvent(e);
+        }
+
+        this.select();
+      }
+    }
+  };
+
+  return {
+    UserNameEdit: UserNameEdit
+  };
+});
+