|  | // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  |  | 
|  | part of html; | 
|  |  | 
|  | /** | 
|  | * Defines the standard key locations returned by | 
|  | * KeyboardEvent.getKeyLocation. | 
|  | */ | 
|  | abstract class KeyLocation { | 
|  | /** | 
|  | * The event key is not distinguished as the left or right version | 
|  | * of the key, and did not originate from the numeric keypad (or did not | 
|  | * originate with a virtual key corresponding to the numeric keypad). | 
|  | */ | 
|  | static const int STANDARD = 0; | 
|  |  | 
|  | /** | 
|  | * The event key is in the left key location. | 
|  | */ | 
|  | static const int LEFT = 1; | 
|  |  | 
|  | /** | 
|  | * The event key is in the right key location. | 
|  | */ | 
|  | static const int RIGHT = 2; | 
|  |  | 
|  | /** | 
|  | * The event key originated on the numeric keypad or with a virtual key | 
|  | * corresponding to the numeric keypad. | 
|  | */ | 
|  | static const int NUMPAD = 3; | 
|  |  | 
|  | /** | 
|  | * The event key originated on a mobile device, either on a physical | 
|  | * keypad or a virtual keyboard. | 
|  | */ | 
|  | static const int MOBILE = 4; | 
|  |  | 
|  | /** | 
|  | * The event key originated on a game controller or a joystick on a mobile | 
|  | * device. | 
|  | */ | 
|  | static const int JOYSTICK = 5; | 
|  | } |