767e0056ee
git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@6775 599a83e7-65a4-db11-8015-0010dcdd6dc2
136 lines
2.9 KiB
JavaScript
136 lines
2.9 KiB
JavaScript
/*
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JavaScript Timer Library
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Usage:
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var namespace = {};
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Components.utils.import('resource://foo-modules/jstimer.jsm', namespace);
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var callback = function(aMessage) { alert(aMessage); };
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var timeout = namespace.setTimeout(callback, 1000, 'OK');
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namespace.clearTimeout(timeout);
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var interval = namespace.setInterval(callback, 1000, 'OK');
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namespace.clearInterval(interval);
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lisence: The MIT License, Copyright (c) 2010 SHIMODA "Piro" Hiroshi
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http://www.cozmixng.org/repos/piro/fx3-compatibility-lib/trunk/license.txt
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original:
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http://www.cozmixng.org/repos/piro/fx3-compatibility-lib/trunk/jstimer.jsm
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http://www.cozmixng.org/repos/piro/fx3-compatibility-lib/trunk/jstimer.test.js
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*/
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var Cc = Components.classes;
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var Ci = Components.interfaces;
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var EXPORTED_SYMBOLS = [
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'setTimeout',
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'clearTimeout',
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'setInterval',
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'clearInterval'
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];
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function setTimeout()
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{
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var args = Array.slice(arguments);
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var callback = args.shift();
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var timeout = args.shift();
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if (typeof callback != 'string') {
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let source = callback;
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callback = function() { source.apply(getGlobal(), args); };
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callback.source = source;
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}
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return (new Timer(
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callback,
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timeout,
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Ci.nsITimer.TYPE_ONE_SHOT
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)).id;
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}
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function clearTimeout(aId)
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{
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Timer.cancel(aId);
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}
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function setInterval()
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{
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var args = Array.slice(arguments);
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var callback = args.shift();
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var interval = args.shift();
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if (typeof callback != 'string') {
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let source = callback;
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callback = function() { source.apply(getGlobal(), args); };
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callback.source = source;
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}
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return (new Timer(
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callback,
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interval,
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Ci.nsITimer.TYPE_REPEATING_SLACK
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)).id;
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}
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function clearInterval(aId)
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{
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Timer.cancel(aId);
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}
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function Timer(aCallback, aTime, aType) {
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this.finished = false;
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this.callback = aCallback;
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this.type = aType;
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this.init(aTime);
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Timer.instances[this.id] = this;
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}
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Timer.prototype = {
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init : function(aTime, aType)
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{
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this.id = parseInt(Math.random() * 65000)
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this.timer = Cc['@mozilla.org/timer;1']
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.createInstance(Ci.nsITimer);
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this.timer.init(this, aTime, this.type);
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},
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cancel : function()
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{
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if (!this.timer) return;
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this.timer.cancel();
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delete this.timer;
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delete this.callback;
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this.finished = true;
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delete Timer.instances[this.id];
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},
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observe : function(aSubject, aTopic, aData)
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{
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if (aTopic != 'timer-callback') return;
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if (typeof this.callback == 'function')
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this.callback();
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else
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evalInSandbox(this.callback);
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if (this.type == Ci.nsITimer.TYPE_ONE_SHOT)
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this.cancel();
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}
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};
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Timer.instances = {};
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Timer.cancel = function(aId) {
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var timer = this.getInstanceById(aId);
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if (timer)
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timer.cancel();
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};
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Timer.getInstanceById = function(aId) {
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return this.instances[aId] || null ;
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};
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function evalInSandbox(aCode, aSandboxOwner)
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{
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var sandbox = new Components.utils.Sandbox(aSandboxOwner || 'about:blank');
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return Components.utils.evalInSandbox(aCode, sandbox);
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}
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function getGlobal()
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{
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return (function() { return this; })();
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}
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