/*
 * Copyright (C) 2006, 2007, 2010 Apple Inc. All rights reserved.
 * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
 * Copyright (C) 2013 Samsung Electronics. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

// https://w3c.github.io/uievents/#interface-WheelEvent

[
    Constructor(DOMString type, optional WheelEventInit eventInitDict),
] interface WheelEvent : MouseEvent {
    // DeltaModeCode
    const unsigned long DOM_DELTA_PIXEL = 0x00;
    const unsigned long DOM_DELTA_LINE = 0x01;
    const unsigned long DOM_DELTA_PAGE = 0x02;
    readonly attribute double deltaX;
    readonly attribute double deltaY;
    readonly attribute double deltaZ;
    readonly attribute unsigned long deltaMode;

    // Non-standard APIs
    [MeasureAs=WheelEventWheelDeltaX] readonly attribute long wheelDeltaX;
    [MeasureAs=WheelEventWheelDeltaY] readonly attribute long wheelDeltaY;
    [MeasureAs=WheelEventWheelDelta] readonly attribute long wheelDelta;
};