/*
requires: jquery/jquery.js
[-- BEGIN AWCConfig --]

label: Hide Empty Content
name: AWCHider
version: 1.0.0
date: 9/15/2010
includes: [shared/jquery.js]
functions:
	- function: AWCHider.hideOnEmpty
		label: "Content: Hide Empty Content"
		arguments: 
			- {label: Source Selector, type: string, help: A jQuery selector like "div#SomeContent".  This chooses the DOM elements to check for emptiness.  If multiple items are targeted, all must be empty. }
			- {label: Target Selector, type: string, help: A jQuery selector like "div#ContentContainer".  This chooses the element(s) to hide.  If this is blank, then Source Selector is used. }

[-- END AWCConfig --]
*/

var AWCHider = {};

(function($) {

$.extend(AWCHider, {

	hideOnEmpty: function(source_selector, target_selector) {
		var source_jq = $(source_selector);

		if (target_selector === undefined || target_selector === '') { target_selector = source_selector; }
		var target_jq = $(target_selector);
		
		if (this.isEmpty(source_jq)) {
			target_jq.hide();
		}
	},
	
	isEmpty: function(source_jq) {
		var is_empty = true;
		source_jq.each(function() {
			// don't waste time if already found a non-empty object
			if (!is_empty) { return; }

			// check for emptiness - don't include spaces
			var text = $(this).text();
			if (text.length && $.trim(text).length > 0) {
				is_empty = false;
			}
		});
		
		return is_empty;
	},


	__end:null
});

})(jQuery);