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43 lines
1.2 KiB
43 lines
1.2 KiB
/* 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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/** |
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* JS module implementation of nsIDOMJSWindow.setTimeout and clearTimeout. |
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*/ |
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this.EXPORTED_SYMBOLS = ["setTimeout", "clearTimeout"]; |
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const Cc = Components.classes; |
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const Ci = Components.interfaces; |
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const Cu = Components.utils; |
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Cu.import("resource://gre/modules/XPCOMUtils.jsm"); |
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// This gives us >=2^30 unique timer IDs, enough for 1 per ms for 12.4 days. |
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let gNextTimeoutId = 1; // setTimeout must return a positive integer |
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let gTimeoutTable = new Map(); // int -> nsITimer |
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this.setTimeout = function setTimeout(aCallback, aMilliseconds) { |
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let id = gNextTimeoutId++; |
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let args = Array.slice(arguments, 2); |
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let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer); |
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timer.initWithCallback(function setTimeout_timer() { |
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gTimeoutTable.delete(id); |
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aCallback.apply(null, args); |
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}, aMilliseconds, timer.TYPE_ONE_SHOT); |
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gTimeoutTable.set(id, timer); |
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return id; |
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} |
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this.clearTimeout = function clearTimeout(aId) { |
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if (gTimeoutTable.has(aId)) { |
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gTimeoutTable.get(aId).cancel(); |
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gTimeoutTable.delete(aId); |
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} |
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} |
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