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/* vim: set ts=2 sw=2 sts=2 et tw=80: */
/* 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 */
* The BrowserElementParent is for performing actions on one or more subframes of
* a <xul:browser> from the browser element binding.
export class BrowserElementParent extends JSWindowActorParent {
receiveMessage(message) {
switch ( {
case "DOMWindowClose": {
// This message is sent whenever window.close() is called within a window
// that had originally been opened via Double-check that this is
// coming from a top-level frame, and then dispatch the DOMWindowClose event
// on the browser so that the front-end code can do the right thing with the
// request to close.
if (!this.manager.browsingContext.parent) {
let browser = this.manager.browsingContext.embedderElement;
let win = browser.ownerGlobal;
// If this is a non-remote browser, the DOMWindowClose event will bubble
// up naturally, and doesn't need to be re-dispatched.
if (browser.isRemoteBrowser) {
new win.CustomEvent("DOMWindowClose", {
bubbles: true,