source: pro-violet-viettel/www/deploy/20150304/assets/js/jquery/jquery.treeview.edit.js @ 780

(function($) {
        var CLASSES = $.treeview.classes;
        var proxied = $.fn.treeview;
        $.fn.treeview = function(settings) {
                settings = $.extend({}, settings);
                if (settings.add) {
                        return this.trigger("add", [settings.add]);
                }
                if (settings.remove) {
                        return this.trigger("remove", [settings.remove]);
                }
                return proxied.apply(this, arguments).bind("add", function(event, branches) {
                        $(branches).prev()
                                .removeClass(CLASSES.last)
                                .removeClass(CLASSES.lastCollapsable)
                                .removeClass(CLASSES.lastExpandable)
                        .find(">.hitarea")
                                .removeClass(CLASSES.lastCollapsableHitarea)
                                .removeClass(CLASSES.lastExpandableHitarea);
                        $(branches).find("li").andSelf().prepareBranches(settings).applyClasses(settings, $(this).data("toggler"));
                }).bind("remove", function(event, branches) {
                        var prev = $(branches).prev();
                        var parent = $(branches).parent();
                        $(branches).remove();
                        prev.filter(":last-child").addClass(CLASSES.last)
                                .filter("." + CLASSES.expandable).replaceClass(CLASSES.last, CLASSES.lastExpandable).end()
                                .find(">.hitarea").replaceClass(CLASSES.expandableHitarea, CLASSES.lastExpandableHitarea).end()
                                .filter("." + CLASSES.collapsable).replaceClass(CLASSES.last, CLASSES.lastCollapsable).end()
                                .find(">.hitarea").replaceClass(CLASSES.collapsableHitarea, CLASSES.lastCollapsableHitarea);
                        if (parent.is(":not(:has(>))") && parent[0] != this) {
                                parent.parent().removeClass(CLASSES.collapsable).removeClass(CLASSES.expandable)
                                parent.siblings(".hitarea").andSelf().remove();
                        }
                });
        };
        
})(jQuery);