gistfile1.js

/**
 * namespacing and prototyping utility
 * 
 * <T>  	bbit.local([String nspart, ..., ]Function T closure)
 * <T>		bbit.mt([String nspart, ..., ]Function T closure)
 * <T>		bbit.jq([String nspart, ..., ]Function T closure)
 * Function	bbit.thrower(String msg)
 * <lambda>	bbit.inherit(Function constructor, mixed parent)
 * 
 * @copyright	backboneIT | Oliver Hoff 2012
 * @author		Oliver Hoff <oliver@hofff.com>
 * @license		http://opensource.org/licenses/lgpl-3.0.html
 */

(function(global, undef) {
	if(global.bbit) return;
	
	var self = global.bbit = {},
		
		local = function() {
			var args = Array.prototype.slice.apply(arguments), base = args.shift(), rt;
			rt = function(ns, fn) {
				if(fn) {
					var a = ns.split("."), s, i = 0;
					ns = base;
					do ns = ns[s = a[i]] ? ns[s] : ns[s] = {}; while(++i < a.length);
				} else {
					fn = ns;
					ns = base;
				}
				return fn.apply(ns, args);
			};
			if(!base) base = rt;
			return rt;
		},
		
		thrower = self.thrower = function(msg) {
			return function() { throw new Exception(msg); };
		};
	
	
	self.local = local(self);
	self.mt = global.MooTools ? local(undef, global.document.id, global.$$) : thrower("MooTools missing");
	self.jq = global.jQuery ? local(undef, global.jQuery) : thrower("jQuery missing");
	
	self.inherit = function(fn, parent) {
		var proto = new Function();
		proto.prototype = parent;
		fn.prototype = new proto();
		return fn;
	};
	
	self.css = function(css, d) {
		if(!d) d = document;
		var s = d.createElement("style");
		s.type = "text/css";
		if(s.styleSheet) {
			s.styleSheet.cssText = css;
			d.documentElement.firstChild.insertBefore(s);
		} else {
			s.insertBefore(d.createTextNode(css), undef);
			d.documentElement.firstChild.insertBefore(s, undef);
		}
	};
		
})(this);