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dom/interfaces/events/nsIDOMWheelEvent.idl@6474c204b198 (annotated)

dom/interfaces/events/nsIDOMWheelEvent.idl

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* vim: set ts=2 et sw=2 tw=80: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0	5	* You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "nsIDOMMouseEvent.idl"
michael@0	8
michael@0	9	[scriptable, builtinclass, uuid(86e2b577-7e61-4ed5-8ddd-c1533bf07137)]
michael@0	10	interface nsIDOMWheelEvent : nsIDOMMouseEvent
michael@0	11	{
michael@0	12	const unsigned long DOM_DELTA_PIXEL = 0x00;
michael@0	13	const unsigned long DOM_DELTA_LINE = 0x01;
michael@0	14	const unsigned long DOM_DELTA_PAGE = 0x02;
michael@0	15
michael@0	16	// Note that DOM Level 3 Events defines the type of delta values as float.
michael@0	17	// However, we should use double for them. Javascript engine always uses
michael@0	18	// double even if interface attributes are float. If we defined them
michael@0	19	// as float, that would cause error at casting from float to double.
michael@0	20	// E.g., following function may return false if the deltaX is float:
michael@0	21	//
michael@0	22	// function () {
michael@0	23	// var event = new WheelEvent("wheel", { deltaX: 0.1 });
michael@0	24	// return (event.deltaX == 0.1);
michael@0	25	// }
michael@0	26
michael@0	27	readonly attribute double deltaX;
michael@0	28	readonly attribute double deltaY;
michael@0	29	readonly attribute double deltaZ;
michael@0	30	readonly attribute unsigned long deltaMode;
michael@0	31
michael@0	32	[noscript] void initWheelEvent(in DOMString typeArg,
michael@0	33	in boolean canBubbleArg,
michael@0	34	in boolean cancelableArg,
michael@0	35	in nsIDOMWindow viewArg,
michael@0	36	in long detailArg,
michael@0	37	in long screenXArg,
michael@0	38	in long screenYArg,
michael@0	39	in long clientXArg,
michael@0	40	in long clientYArg,
michael@0	41	in unsigned short buttonArg,
michael@0	42	in nsIDOMEventTarget relatedTargetArg,
michael@0	43	in DOMString modifiersListArg,
michael@0	44	in double deltaXArg,
michael@0	45	in double deltaYArg,
michael@0	46	in double deltaZArg,
michael@0	47	in unsigned long deltaMode);
michael@0	48	};