Bryan Forbes bryanforbes

Senior Engineer @SitePen. Contributes to @dojo and other open source projects.

bryanforbes / gist:610288

Created October 4, 2010 19:40

	addtest('bug-root-children-arent-styled', function(g, d, e){
	var result = null, root;
	if(d && d.documentElement && e){
	root = d.documentElement;
	e.style.cssText = 'width:40px;height:40px;';

	try{
	root.insertBefore(e, root.firstChild);

	result = e.clientWidth == 0;

bryanforbes / helper.js

Created October 29, 2010 16:11

	(function(global){
	var NON_HOST_TYPES = { "boolean": 1, "number": 1, "string": 1, "undefined": 1 },
	_listen, _stopListening, normalizeEventName;

	// Imported from http://github.com/phiggins42/has.js.
	// Host objects can return type values that are different from their actual
	// data type. The objects we are concerned with usually return non-primitive
	// types of object, function, or unknown.
	function isHostType(object, property){
	var type = typeof object[property];

bryanforbes / no_leak_1.html

Created October 29, 2010 16:22

	<!DOCTYPE HTML>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta http-equiv="refresh" content="2;url=">
	<title>Leak Fix with Lookup Wrapper</title>
	<script src="helper.js"></script>
	<script>
	var _cache = {};
	var createWrapper = (function(){

bryanforbes / gist:663298

Created November 4, 2010 22:06

This is an attempt to explain what is happening behind the scenes with event handlers in ES3 and why IE leaks in one case and not another.

	// Global Object
	// (§10.2.1)
	// GO.scope_chain = [GO]

	// GO._cache = _cache
	var _cache = {};

	// Declaration (§13.2):
	// CWanonfunc.[[Scope]] = GO.scope_chain.slice(0) (§13.2 step 7)

bryanforbes / dispatcher.js

Created December 15, 2010 19:21

A simple event disptacher to prevent leaks

	var eventData = {};

	(function(global){
	function createDispatcher(id){
	function dispatcher(){
	if(id in _evtData){
	_evtData[id].handler.apply(this, arguments);
	}
	}
	return dispatcher;

bryanforbes / guid.js

Created January 6, 2011 22:43

	var guid = (function(){
	function hasUniqueNumber(){
	var docEl = document.documentElement, elem = document.createElement("div");
	return (typeof elem.uniqueNumber == "number" && typeof docEl.uniqueNumber == "number" &&
	elem.uniqueNumber != docEl.uniqueNumber);
	}

	var guid, last = 1;

	if(hasUniqueNumber()){

bryanforbes / keyboard.html

Created April 11, 2011 16:23

	<!DOCTYPE HTML>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>Test</title>
	</head>
	<body>
	<input id="txt" />
	<script>
	var txt = document.getElementById("txt"),

bryanforbes / keyboard-events.html

Created April 11, 2011 16:29

bryanforbes / bool.js

Created April 18, 2011 03:40

	var Boolean = (function(){
	var undefinedThis = (function(){
	return this; // this depends on strict mode
	})();
	function Boolean(arg){
	if(this == undefinedThis){
	return !!arg;
	}else{
	return {};
	}

bryanforbes / a.js

Created May 13, 2011 13:57

Recursive module requires