Contao Isotope cart AJAX actions

isotope_cart_ajax.js

(function($)
{
    // or use https://github.com/fczbkk/css-selector-generator instead
    $.fn.getPath = function () {
        if (this.length != 1) throw 'Requires one element.';

        var path, node = this;
        while (node.length) {
            var realNode = node[0], name = realNode.localName;
            if (!name) break;

            name = name.toLowerCase();
            if (realNode.id) {
                // As soon as an id is found, there's no need to specify more.
                return name + '#' + realNode.id + (path ? '>' + path : '');
            } else if (realNode.className) {
                name += '.' + realNode.className.split(/\s+/).join('.');
            }

            var parent = node.parent(), siblings = parent.children(name);
            if (siblings.length > 1) name += ':eq(' + siblings.index(node) + ')';
            path = name + (path ? '>' + path : '');

            node = parent;
        }

        return path;
    };

    var setEventListeners = function()
    {
        // set event listeners to delete links
        $('.mod_iso_cart td.remove a').click( function(e)
        {
            e.preventDefault();
            $.get( $(this).attr('href'), function() { updateCart( window.location.href ); });
            return false;
        });

        // set event listeners to the update buttons in all carts
        $('.mod_iso_cart').each( function()
        {
            var $form = $(this);
            $form.find('.button_update').click( function(e)
            {
                e.preventDefault();
                $form.ajaxSubmit({ success: function() { updateCart( window.location.href ); } });
                return false;
            });
        });
    };

    var updateCart = function( href )
    {
        // update each cart using the href
        $('.mod_iso_cart').each( function() { $(this).load( href + ' ' + $(this).getPath() + ' > *' ); });

        // set the event listeners again
        setEventListeners();
    };

    $(document).ready( function()
    {
        setEventListeners();
    });

})(jQuery);