/**
 * Isotope Item
 **/

(function(window, factory) {
	// universal module definition
	/* jshint strict: false */ /*globals define, module, require */
	if (typeof define == 'function' && define.amd) {
		// AMD
		define(['outlayer/outlayer'], factory);
	} else if (typeof module == 'object' && module.exports) {
		// CommonJS
		module.exports = factory(require('outlayer'));
	} else {
		// browser global
		window.Isotope = window.Isotope || {};
		window.Isotope.Item = factory(window.Outlayer);
	}
})(window, function factory(Outlayer) {
	'use strict';

	// -------------------------- Item -------------------------- //
	// sub-class Outlayer Item
	function Item() {
		Outlayer.Item.apply(this, arguments);
	}

	var proto = (Item.prototype = Object.create(Outlayer.Item.prototype));

	var _create = proto._create;
	proto._create = function() {
		// assign id, used for original-order sorting
		this.id = this.layout.itemGUID++;
		_create.call(this);
		this.sortData = {};
	};

	proto.updateSortData = function() {
		if (this.isIgnored) {
			return;
		}
		// default sorters
		this.sortData.id = this.id;
		// for backward compatibility
		this.sortData['original-order'] = this.id;
		this.sortData.random = Math.random();
		// go thru getSortData obj and apply the sorters
		var getSortData = this.layout.options.getSortData;
		var sorters = this.layout._sorters;
		for (var key in getSortData) {
			var sorter = sorters[key];
			this.sortData[key] = sorter(this.element, this);
		}
	};

	var _destroy = proto.destroy;
	proto.destroy = function() {
		// call super
		_destroy.apply(this, arguments);
		// reset display, #741
		this.css({
			display: '',
		});
	};

	return Item;
});