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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Jetpack.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Irakli Gozalishvili <gozala@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
"use strict";
const { Cc, Ci } = require("chrome");
const { createRemoteBrowser } = require("api-utils/window-utils");
const { channel } = require("./channel");
const { setTimout } = require('./timer');
const packaging = require('@packaging');
const { when } = require('./unload');
const addonService = '@mozilla.org/addon/service;1' in Cc ?
Cc['@mozilla.org/addon/service;1'].getService(Ci.nsIAddonService) : null
const ENABLE_E10S = packaging.enable_e10s;
function loadScript(target, uri, sync) {
return 'loadScript' in target ? target.loadScript(uri, sync)
: target.loadFrameScript(uri, sync)
}
function process(target, id, path, scope) {
// Please note that even though `loadScript`, is executed before channel is
// returned, users still are able to subscribe for messages before any message
// will be sent. That's because `loadScript` queues script execution on the
// other process, which means they will execute async (on the next turn of
// event loop), while the channel for messages is returned immediately (in
// the same turn of event loop).
loadScript(target, packaging.uriPrefix + packaging.loader, false);
loadScript(target, 'data:,let loader = Loader.new(' +
JSON.stringify(packaging) + ');\n' +
'loader.main("' + id + '", "' + path + '");', false);
when(function (reason) {
// Please note that it's important to unload remote loader
// synchronously (using synchronous frame script), to make sure that we
// don't stop during unload.
loadScript(target, 'data:,loader.unload("' + reason + '")', true);
});
return { channel: channel.bind(null, scope, target) }
}
exports.spawn = function spawn(id, path) {
return function promise(deliver) {
// If `nsIAddonService` is available we use it to create an add-on process,
// otherwise we fallback to the remote browser's message manager.
if (ENABLE_E10S && addonService) {
console.log('!!!!!!!!!!!!!!!!!!!! Using addon process !!!!!!!!!!!!!!!!!!');
deliver(process(addonService.createAddon(), id, path));
} else {
createRemoteBrowser(ENABLE_E10S)(function(browser) {
let messageManager = browser.QueryInterface(Ci.nsIFrameLoaderOwner).
frameLoader.messageManager
let window = browser.ownerDocument.defaultView;
deliver(process(messageManager, id, path, window));
});
}
};
};
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