1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
8 * JS module implementation of nsIDOMJSWindow.setTimeout and clearTimeout.
11 this.EXPORTED_SYMBOLS = ["setTimeout", "clearTimeout"];
13 const Cc = Components.classes;
14 const Ci = Components.interfaces;
15 const Cu = Components.utils;
17 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
19 // This gives us >=2^30 unique timer IDs, enough for 1 per ms for 12.4 days.
20 let gNextTimeoutId = 1; // setTimeout must return a positive integer
22 let gTimeoutTable = new Map(); // int -> nsITimer
24 this.setTimeout = function setTimeout(aCallback, aMilliseconds) {
25 let id = gNextTimeoutId++;
26 let args = Array.slice(arguments, 2);
27 let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
28 timer.initWithCallback(function setTimeout_timer() {
29 gTimeoutTable.delete(id);
30 aCallback.apply(null, args);
31 }, aMilliseconds, timer.TYPE_ONE_SHOT);
33 gTimeoutTable.set(id, timer);
37 this.clearTimeout = function clearTimeout(aId) {
38 if (gTimeoutTable.has(aId)) {
39 gTimeoutTable.get(aId).cancel();
40 gTimeoutTable.delete(aId);