Edit file File name : bootstrap-submenu.js Content :/*! * Bootstrap-submenu v2.0.4 (https://vsn4ik.github.io/bootstrap-submenu/) * Copyright 2014-2017 Vasily A. (https://github.com/vsn4ik) * Licensed under the MIT license */ "use strict";!function(a){"function"==typeof define&&define.amd?define(["jquery"],a):"object"==typeof exports?module.exports=a(require("jquery")):a(jQuery)}(function(a){function b(b){this.$element=a(b),this.$menu=this.$element.closest(".dropdown-menu"),this.$main=this.$menu.parent(),this.$items=this.$menu.children(".dropdown-submenu"),this.init()}function c(b){this.$element=a(b),this.$main=this.$element.parent(),this.$menu=this.$main.children(".dropdown-menu"),this.$subs=this.$main.siblings(".dropdown-submenu"),this.$items=this.$menu.children(".dropdown-submenu"),this.init()}function d(b){this.$element=a(b),this.$main=this.$element.parent(),this.$menu=this.$main.children(".dropdown-menu"),this.$items=this.$menu.children(".dropdown-submenu"),this.init()}b.prototype={init:function(){this.$element.on("keydown",a.proxy(this,"keydown"))},close:function(){this.$main.removeClass("open"),this.$items.trigger("hide.bs.submenu")},keydown:function(a){27==a.keyCode&&(a.stopPropagation(),this.close(),this.$main.children("a, button").trigger("focus"))}},a.extend(c.prototype,b.prototype,{init:function(){this.$element.on({click:a.proxy(this,"click"),keydown:a.proxy(this,"keydown")}),this.$main.on("hide.bs.submenu",a.proxy(this,"hide"))},click:function(a){a.preventDefault(),a.stopPropagation(),this.toggle()},hide:function(a){a.stopPropagation(),this.close()},open:function(){this.$main.addClass("open"),this.$subs.trigger("hide.bs.submenu")},toggle:function(){this.$main.hasClass("open")?this.close():this.open()},keydown:function(b){32==b.keyCode&&b.preventDefault(),a.inArray(b.keyCode,[13,32])!=-1&&this.toggle()}}),d.prototype={init:function(){this.$menu.off("keydown.bs.dropdown.data-api"),this.$menu.on("keydown",a.proxy(this,"itemKeydown")),this.$menu.find("li > a").each(function(){new b(this)}),this.$menu.find(".dropdown-submenu > a").each(function(){new c(this)}),this.$main.on("hidden.bs.dropdown",a.proxy(this,"hidden"))},hidden:function(){this.$items.trigger("hide.bs.submenu")},itemKeydown:function(b){if(a.inArray(b.keyCode,[38,40])!=-1){b.preventDefault(),b.stopPropagation();var c=this.$menu.find("li:not(.disabled):visible > a"),d=c.index(b.target);if(38==b.keyCode&&0!==d)d--;else{if(40!=b.keyCode||d===c.length-1)return;d++}c.eq(d).trigger("focus")}}};var e=a.fn.submenupicker;return a.fn.submenupicker=function(b){var c=this instanceof a?this:a(b);return c.each(function(){var b=a.data(this,"bs.submenu");b||(b=new d(this),a.data(this,"bs.submenu",b))})},a.fn.submenupicker.Constructor=d,a.fn.submenupicker.noConflict=function(){return a.fn.submenupicker=e,this},a.fn.submenupicker}); Save