1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
6 * For more information on this interface please see
7 * http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html
9 * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
10 * liability, trademark and document use rules apply.
14 interface WheelEvent : MouseEvent
16 constructor(DOMString type, optional WheelEventInit eventInitDict = {});
18 const unsigned long DOM_DELTA_PIXEL = 0x00;
19 const unsigned long DOM_DELTA_LINE = 0x01;
20 const unsigned long DOM_DELTA_PAGE = 0x02;
22 // Legacy MouseWheelEvent API replaced by standard WheelEvent API.
24 readonly attribute long wheelDeltaX;
26 readonly attribute long wheelDeltaY;
28 readonly attribute long wheelDelta;
30 [NeedsCallerType] readonly attribute double deltaX;
31 [NeedsCallerType] readonly attribute double deltaY;
32 [NeedsCallerType] readonly attribute double deltaZ;
33 [NeedsCallerType] readonly attribute unsigned long deltaMode;
36 dictionary WheelEventInit : MouseEventInit
41 unsigned long deltaMode = 0;