gecko-dev/dom/webidl/MessageEvent.webidl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For more information on this interface, please see
* http://www.whatwg.org/specs/web-apps/current-work/#messageevent
*/
interface WindowProxy;
interface MessageEvent : Event
{
/**
* Custom data associated with this event.
*/
[GetterThrows]
readonly attribute any data;
/**
* The origin of the site from which this event originated, which is the
* scheme, ":", and if the URI has a host, "//" followed by the
* host, and if the port is not the default for the given scheme,
* ":" followed by that port. This value does not have a trailing slash.
*/
readonly attribute DOMString origin;
/**
* The last event ID string of the event source, for server-sent DOM events; this
* value is the empty string for cross-origin messaging.
*/
readonly attribute DOMString lastEventId;
/**
* The window which originated this event.
*/
readonly attribute WindowProxy? source;
/**
* Initializes this event with the given data, in a manner analogous to
* the similarly-named method on the nsIDOMEvent interface, also setting the
* data, origin, source, and lastEventId attributes of this appropriately.
*/
[Throws]
void initMessageEvent(DOMString aType,
boolean aCanBubble,
boolean aCancelable,
any aData,
DOMString aOrigin,
DOMString aLastEventId,
WindowProxy? aSource);
};