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
*/
[Constructor(DOMString type, optional MessageEventInit eventInitDict),
Exposed=(Window,Worker,System)]
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 or port which originated this event.
*/
readonly attribute (WindowProxy or MessagePort)? 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.
*/
readonly attribute MessagePortList? ports;
void initMessageEvent(DOMString type, boolean bubbles, boolean cancelable,
any data, DOMString origin, DOMString lastEventId,
(WindowProxy or MessagePort)? source,
sequence<MessagePort>? ports);
};
dictionary MessageEventInit : EventInit {
any data;
DOMString origin;
DOMString lastEventId;
(Window or MessagePort)? source = null;
sequence<MessagePort>? ports;
};