зеркало из https://github.com/mozilla/gecko-dev.git
80 строки
2.2 KiB
JavaScript
80 строки
2.2 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const { Cc } = require("chrome");
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const Services = require("Services");
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loader.lazyGetter(this, "ppmm", () => {
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return Cc["@mozilla.org/parentprocessmessagemanager;1"].getService();
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});
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function ProcessActorList() {
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this._actors = new Map();
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this._onListChanged = null;
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this._mustNotify = false;
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this._hasObserver = false;
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}
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ProcessActorList.prototype = {
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getList: function() {
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const processes = [];
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for (let i = 0; i < ppmm.childCount; i++) {
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const mm = ppmm.getChildAt(i);
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processes.push({
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// An ID of zero is always used for the parent. It would be nice to fix
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// this so that the pid is also used for the parent, see bug 1587443.
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id: mm.isInProcess ? 0 : mm.osPid,
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parent: mm.isInProcess,
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// TODO: exposes process message manager on frameloaders in order to compute this
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tabCount: undefined,
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});
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}
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this._mustNotify = true;
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this._checkListening();
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return processes;
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},
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get onListChanged() {
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return this._onListChanged;
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},
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set onListChanged(onListChanged) {
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if (typeof onListChanged !== "function" && onListChanged !== null) {
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throw new Error("onListChanged must be either a function or null.");
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}
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if (onListChanged === this._onListChanged) {
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return;
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}
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this._onListChanged = onListChanged;
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this._checkListening();
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},
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_checkListening: function() {
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if (this._onListChanged !== null && this._mustNotify) {
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if (!this._hasObserver) {
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Services.obs.addObserver(this, "ipc:content-created");
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Services.obs.addObserver(this, "ipc:content-shutdown");
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this._hasObserver = true;
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}
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} else if (this._hasObserver) {
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Services.obs.removeObserver(this, "ipc:content-created");
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Services.obs.removeObserver(this, "ipc:content-shutdown");
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this._hasObserver = false;
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}
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},
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observe() {
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if (this._mustNotify) {
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this._onListChanged();
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this._mustNotify = false;
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}
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},
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};
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exports.ProcessActorList = ProcessActorList;
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