Editing: bootstrap3-typeahead.min.js

!function(a,b){"use strict";"undefined"!=typeof module&&module.exports?module.exports=b(require("jquery")):"function"==typeof define&&define.amd?define(["jquery"],function(a){return b(a)}):b(a.jQuery)}(this,function(a){"use strict";var b=function(b,c){this.$element=a(b),this.options=a.extend({},a.fn.typeahead.defaults,c),this.matcher=this.options.matcher||this.matcher,this.sorter=this.options.sorter||this.sorter,this.select=this.options.select||this.select,this.autoSelect="boolean"==typeof this.options.autoSelect?this.options.autoSelect:!0,this.highlighter=this.options.highlighter||this.highlighter,this.render=this.options.render||this.render,this.updater=this.options.updater||this.updater,this.displayText=this.options.displayText||this.displayText,this.source=this.options.source,this.delay=this.options.delay,this.$menu=a(this.options.menu),this.$appendTo=this.options.appendTo?a(this.options.appendTo):null,this.shown=!1,this.listen(),this.showHintOnFocus="boolean"==typeof this.options.showHintOnFocus?this.options.showHintOnFocus:!1,this.afterSelect=this.options.afterSelect,this.addItem=!1};b.prototype={constructor:b,select:function(){var a=this.$menu.find(".active").data("value");if(this.$element.data("active",a),this.autoSelect||a){var b=this.updater(a);b||(b=""),this.$element.val(this.displayText(b)||b).change(),this.afterSelect(b)}return this.hide()},updater:function(a){return a},setSource:function(a){this.source=a},show:function(){var b,c=a.extend({},this.$element.position(),{height:this.$element[0].offsetHeight});b="function"==typeof this.options.scrollHeight?this.options.scrollHeight.call():this.options.scrollHeight;var d;return d=this.shown?this.$menu:this.$appendTo?this.$menu.appendTo(this.$appendTo):this.$menu.insertAfter(this.$element),d.css({top:c.top+c.height+b,left:c.left}).show(),this.shown=!0,this},hide:function(){return this.$menu.hide(),this.shown=!1,this},lookup:function(b){if("undefined"!=typeof b&&null!==b?this.query=b:this.query=this.$element.val()||"",this.query.length<this.options.minLength&&!this.options.showHintOnFocus)return this.shown?this.hide():this;var c=a.proxy(function(){a.isFunction(this.source)?this.source(this.query,a.proxy(this.process,this)):this.source&&this.process(this.source)},this);clearTimeout(this.lookupWorker),this.lookupWorker=setTimeout(c,this.delay)},process:function(b){var c=this;return b=a.grep(b,function(a){return c.matcher(a)}),b=this.sorter(b),b.length||this.options.addItem?(b.length>0?this.$element.data("active",b[0]):this.$element.data("active",null),this.options.addItem&&b.push(this.options.addItem),"all"==this.options.items?this.render(b).show():this.render(b.slice(0,this.options.items)).show()):this.shown?this.hide():this},matcher:function(a){var b=this.displayText(a);return~b.toLowerCase().indexOf(this.query.toLowerCase())},sorter:function(a){for(var b,c=[],d=[],e=[];b=a.shift();){var f=this.displayText(b);f.toLowerCase().indexOf(this.query.toLowerCase())?~f.indexOf(this.query)?d.push(b):e.push(b):c.push(b)}return c.concat(d,e)},highlighter:function(b){var c,d,e,f,g,h=a("<div></div>"),i=this.query,j=b.toLowerCase().indexOf(i.toLowerCase());if(c=i.length,0===c)return h.text(b).html();for(;j>-1;)d=b.substr(0,j),e=b.substr(j,c),f=b.substr(j+c),g=a("<strong></strong>").text(e),h.append(document.createTextNode(d)).append(g),b=f,j=b.toLowerCase().indexOf(i.toLowerCase());return h.append(document.createTextNode(b)).html()},render:function(b){var c=this,d=this,e=!1,f=[],g=c.options.separator;return a.each(b,function(a,c){a>0&&c[g]!==b[a-1][g]&&f.push({__type:"divider"}),!c[g]||0!==a&&c[g]===b[a-1][g]||f.push({__type:"category",name:c[g]}),f.push(c)}),b=a(f).map(function(b,f){if("category"==(f.__type||!1))return a(c.options.headerHtml).text(f.name)[0];if("divider"==(f.__type||!1))return a(c.options.headerDivider)[0];var g=d.displayText(f);return b=a(c.options.item).data("value",f),b.find("a").html(c.highlighter(g,f)),g==d.$element.val()&&(b.addClass("active"),d.$element.data("active",f),e=!0),b[0]}),this.autoSelect&&!e&&(b.filter(":not(.dropdown-header)").first().addClass("active"),this.$element.data("active",b.first().data("value"))),this.$menu.html(b),this},displayText:function(a){return"undefined"!=typeof a&&"undefined"!=typeof a.name&&a.name||a},next:function(b){var c=this.$menu.find(".active").removeClass("active"),d=c.next();d.length||(d=a(this.$menu.find("li")[0])),d.addClass("active")},prev:function(a){var b=this.$menu.find(".active").removeClass("active"),c=b.prev();c.length||(c=this.$menu.find("li").last()),c.addClass("active")},listen:function(){this.$element.on("focus",a.proxy(this.focus,this)).on("blur",a.proxy(this.blur,this)).on("keypress",a.proxy(this.keypress,this)).on("input",a.proxy(this.input,this)).on("keyup",a.proxy(this.keyup,this)),this.eventSupported("keydown")&&this.$element.on("keydown",a.proxy(this.keydown,this)),this.$menu.on("click",a.proxy(this.click,this)).on("mouseenter","li",a.proxy(this.mouseenter,this)).on("mouseleave","li",a.proxy(this.mouseleave,this))},destroy:function(){this.$element.data("typeahead",null),this.$element.data("active",null),this.$element.off("focus").off("blur").off("keypress").off("input").off("keyup"),this.eventSupported("keydown")&&this.$element.off("keydown"),this.$menu.remove()},eventSupported:function(a){var b=a in this.$element;return b||(this.$element.setAttribute(a,"return;"),b="function"==typeof this.$element[a]),b},move:function(a){if(this.shown)switch(a.keyCode){case 9:case 13:case 27:a.preventDefault();break;case 38:if(a.shiftKey)return;a.preventDefault(),this.prev();break;case 40:if(a.shiftKey)return;a.preventDefault(),this.next()}},keydown:function(b){this.suppressKeyPressRepeat=~a.inArray(b.keyCode,[40,38,9,13,27]),this.shown||40!=b.keyCode?this.move(b):this.lookup()},keypress:function(a){this.suppressKeyPressRepeat||this.move(a)},input:function(a){this.lookup(),a.preventDefault()},keyup:function(a){switch(a.keyCode){case 40:case 38:case 16:case 17:case 18:break;case 9:case 13:if(!this.shown)return;this.select();break;case 27:if(!this.shown)return;this.hide()}a.preventDefault()},focus:function(a){this.focused||(this.focused=!0,this.options.showHintOnFocus&&this.lookup(""))},blur:function(a){this.focused=!1,!this.mousedover&&this.shown&&this.hide()},click:function(a){a.preventDefault(),this.select(),this.$element.focus(),this.hide()},mouseenter:function(b){this.mousedover=!0,this.$menu.find(".active").removeClass("active"),a(b.currentTarget).addClass("active")},mouseleave:function(a){this.mousedover=!1,!this.focused&&this.shown&&this.hide()}};var c=a.fn.typeahead;a.fn.typeahead=function(c){var d=arguments;return"string"==typeof c&&"getActive"==c?this.data("active"):this.each(function(){var e=a(this),f=e.data("typeahead"),g="object"==typeof c&&c;f||e.data("typeahead",f=new b(this,g)),"string"==typeof c&&f[c]&&(d.length>1?f[c].apply(f,Array.prototype.slice.call(d,1)):f[c]())})},a.fn.typeahead.defaults={source:[],items:8,menu:'<ul class="typeahead dropdown-menu" role="listbox"></ul>',item:'<li><a class="dropdown-item" href="#" role="option"></a></li>',minLength:1,scrollHeight:0,autoSelect:!0,afterSelect:a.noop,addItem:!1,delay:0,separator:"category",headerHtml:'<li class="dropdown-header"></li>',headerDivider:'<li class="divider" role="separator"></li>'},a.fn.typeahead.Constructor=b,a.fn.typeahead.noConflict=function(){return a.fn.typeahead=c,this},a(document).on("focus.typeahead.data-api",'[data-provide="typeahead"]',function(b){var c=a(this);c.data("typeahead")||c.typeahead(c.data())})});