/*!
 * jQuery simpleWidget - v0.1pre - 10/28/2010
 * http://benalman.com/
 * http://jsfiddle.net/cowboy/FMLPF/
 *
 * Copyright (c) 2010 "Cowboy" Ben Alman
 * Dual licensed under the MIT and GPL licenses.
 * http://benalman.com/about/license/
 */

(function($, undefined) {

	$.simpleWidget = function(widget_name, widget) {

		// Create selector.
		$.expr[':'][widget_name] = function(elem) {
			return !!$.data(elem, widget_name);
		};

		// Create plugin method.
		$.fn[widget_name] = function(options) {
			var args, args_to_slice = 0,
				method_name = '_create',
				result;

			// Was a method name passed as the first argument?
			if (typeof options === 'string' && $.isFunction(widget[options])) {
				method_name = options;
				args_to_slice = 1;
			}

			// Parse the passed arguments.
			args = Array.prototype.slice.call(arguments, args_to_slice);

			// Call the appropriate method in the context of each passed element's
			// instance.
			this.each(function() {
				var elem = $(this),
					data = elem.data(widget_name),
					created = data,
					method;

				// If widget has no data, initialize instance data.
				data || elem.data(widget_name, data = $.extend({},
				widget, {
					element: elem,
					options: options
				}));

				// Only execute method when appropriate.
				if (created ? method_name !== '_create' : method_name !== 'destroy') {
					method = data[method_name];
					result = $.isFunction(method) && method.apply(data, args);
				}

				if (method_name === 'destroy') {
					// If destroying a widget, remove instance data.
					elem.removeData(widget_name);

				} else if (result !== undefined) {
					// If method returned a non-undefined value, break out of the each.
					return false;
				}
			});

			// If method returned a non-undefined value, return that value (this will
			// break the chain).
			return result !== undefined ? result : this;
		};
	};

})(jQuery);