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Editing: autocomplete.min.js
!function(factory){"use strict";"function"==typeof define&&define.amd?define(["jquery","./menu","../keycode","../position","../safe-active-element","../version","../widget"],factory):factory(jQuery)}(function($){"use strict";return $.widget("ui.autocomplete",{version:"1.13.1",defaultElement:"<input>",options:{appendTo:null,autoFocus:!1,delay:300,minLength:1,position:{my:"left top",at:"left bottom",collision:"none"},source:null,change:null,close:null,focus:null,open:null,response:null,search:null,select:null},requestIndex:0,pending:0,liveRegionTimer:null,_create:function(){var suppressKeyPress,suppressKeyPressRepeat,suppressInput,nodeName=this.element[0].nodeName.toLowerCase(),isTextarea="textarea"===nodeName,nodeName="input"===nodeName;this.isMultiLine=isTextarea||!nodeName&&this._isContentEditable(this.element),this.valueMethod=this.element[isTextarea||nodeName?"val":"text"],this.isNewMenu=!0,this._addClass("ui-autocomplete-input"),this.element.attr("autocomplete","off"),this._on(this.element,{keydown:function(event){if(this.element.prop("readOnly"))suppressKeyPressRepeat=suppressInput=suppressKeyPress=!0;else{suppressKeyPressRepeat=suppressInput=suppressKeyPress=!1;var keyCode=$.ui.keyCode;switch(event.keyCode){case keyCode.PAGE_UP:suppressKeyPress=!0,this._move("previousPage",event);break;case keyCode.PAGE_DOWN:suppressKeyPress=!0,this._move("nextPage",event);break;case keyCode.UP:suppressKeyPress=!0,this._keyEvent("previous",event);break;case keyCode.DOWN:suppressKeyPress=!0,this._keyEvent("next",event);break;case keyCode.ENTER:this.menu.active&&(suppressKeyPress=!0,event.preventDefault(),this.menu.select(event));break;case keyCode.TAB:this.menu.active&&this.menu.select(event);break;case keyCode.ESCAPE:this.menu.element.is(":visible")&&(this.isMultiLine||this._value(this.term),this.close(event),event.preventDefault());break;default:suppressKeyPressRepeat=!0,this._searchTimeout(event)}}},keypress:function(event){if(suppressKeyPress)return suppressKeyPress=!1,void(this.isMultiLine&&!this.menu.element.is(":visible")||event.preventDefault());if(!suppressKeyPressRepeat){var keyCode=$.ui.keyCode;switch(event.keyCode){case keyCode.PAGE_UP:this._move("previousPage",event);break;case keyCode.PAGE_DOWN:this._move("nextPage",event);break;case keyCode.UP:this._keyEvent("previous",event);break;case keyCode.DOWN:this._keyEvent("next",event)}}},input:function(event){if(suppressInput)return suppressInput=!1,void event.preventDefault();this._searchTimeout(event)},focus:function(){this.selectedItem=null,this.previous=this._value()},blur:function(event){clearTimeout(this.searching),this.close(event),this._change(event)}}),this._initSource(),this.menu=$("<ul>").appendTo(this._appendTo()).menu({role:null}).hide().attr({unselectable:"on"}).menu("instance"),this._addClass(this.menu.element,"ui-autocomplete","ui-front"),this._on(this.menu.element,{mousedown:function(event){event.preventDefault()},menufocus:function(event,ui){var label,item;if(this.isNewMenu&&(this.isNewMenu=!1,event.originalEvent&&/^mouse/.test(event.originalEvent.type)))return this.menu.blur(),void this.document.one("mousemove",function(){$(event.target).trigger(event.originalEvent)});item=ui.item.data("ui-autocomplete-item"),!1!==this._trigger("focus",event,{item:item})&&event.originalEvent&&/^key/.test(event.originalEvent.type)&&this._value(item.value),(label=ui.item.attr("aria-label")||item.value)&&String.prototype.trim.call(label).length&&(clearTimeout(this.liveRegionTimer),this.liveRegionTimer=this._delay(function(){this.liveRegion.html($("<div>").text(label))},100))},menuselect:function(event,ui){var item=ui.item.data("ui-autocomplete-item"),previous=this.previous;this.element[0]!==$.ui.safeActiveElement(this.document[0])&&(this.element.trigger("focus"),this.previous=previous,this._delay(function(){this.previous=previous,this.selectedItem=item})),!1!==this._trigger("select",event,{item:item})&&this._value(item.value),this.term=this._value(),this.close(event),this.selectedItem=item}}),this.liveRegion=$("<div>",{role:"status","aria-live":"assertive","aria-relevant":"additions"}).appendTo(this.document[0].body),this._addClass(this.liveRegion,null,"ui-helper-hidden-accessible"),this._on(this.window,{beforeunload:function(){this.element.removeAttr("autocomplete")}})},_destroy:function(){clearTimeout(this.searching),this.element.removeAttr("autocomplete"),this.menu.element.remove(),this.liveRegion.remove()},_setOption:function(key,value){this._super(key,value),"source"===key&&this._initSource(),"appendTo"===key&&this.menu.element.appendTo(this._appendTo()),"disabled"===key&&value&&this.xhr&&this.xhr.abort()},_isEventTargetInWidget:function(event){var menuElement=this.menu.element[0];return event.target===this.element[0]||event.target===menuElement||$.contains(menuElement,event.target)},_closeOnClickOutside:function(event){this._isEventTargetInWidget(event)||this.close()},_appendTo:function(){var element=this.options.appendTo;return element=(element=(element=element&&(element.jquery||element.nodeType?$(element):this.document.find(element).eq(0)))&&element[0]?element:this.element.closest(".ui-front, dialog")).length?element:this.document[0].body},_initSource:function(){var array,url,that=this;Array.isArray(this.options.source)?(array=this.options.source,this.source=function(request,response){response($.ui.autocomplete.filter(array,request.term))}):"string"==typeof this.options.source?(url=this.options.source,this.source=function(request,response){that.xhr&&that.xhr.abort(),that.xhr=$.ajax({url:url,data:request,dataType:"json",success:function(data){response(data)},error:function(){response([])}})}):this.source=this.options.source},_searchTimeout:function(event){clearTimeout(this.searching),this.searching=this._delay(function(){var equalValues=this.term===this._value(),menuVisible=this.menu.element.is(":visible"),modifierKey=event.altKey||event.ctrlKey||event.metaKey||event.shiftKey;equalValues&&(menuVisible||modifierKey)||(this.selectedItem=null,this.search(null,event))},this.options.delay)},search:function(value,event){return value=null!=value?value:this._value(),this.term=this._value(),value.length<this.options.minLength?this.close(event):!1!==this._trigger("search",event)?this._search(value):void 0},_search:function(value){this.pending++,this._addClass("ui-autocomplete-loading"),this.cancelSearch=!1,this.source({term:value},this._response())},_response:function(){var index=++this.requestIndex;return function(content){index===this.requestIndex&&this.__response(content),this.pending--,this.pending||this._removeClass("ui-autocomplete-loading")}.bind(this)},__response:function(content){content=content&&this._normalize(content),this._trigger("response",null,{content:content}),!this.options.disabled&&content&&content.length&&!this.cancelSearch?(this._suggest(content),this._trigger("open")):this._close()},close:function(event){this.cancelSearch=!0,this._close(event)},_close:function(event){this._off(this.document,"mousedown"),this.menu.element.is(":visible")&&(this.menu.element.hide(),this.menu.blur(),this.isNewMenu=!0,this._trigger("close",event))},_change:function(event){this.previous!==this._value()&&this._trigger("change",event,{item:this.selectedItem})},_normalize:function(items){return items.length&&items[0].label&&items[0].value?items:$.map(items,function(item){return"string"==typeof item?{label:item,value:item}:$.extend({},item,{label:item.label||item.value,value:item.value||item.label})})},_suggest:function(items){var ul=this.menu.element.empty();this._renderMenu(ul,items),this.isNewMenu=!0,this.menu.refresh(),ul.show(),this._resizeMenu(),ul.position($.extend({of:this.element},this.options.position)),this.options.autoFocus&&this.menu.next(),this._on(this.document,{mousedown:"_closeOnClickOutside"})},_resizeMenu:function(){var ul=this.menu.element;ul.outerWidth(Math.max(ul.width("").outerWidth()+1,this.element.outerWidth()))},_renderMenu:function(ul,items){var that=this;$.each(items,function(index,item){that._renderItemData(ul,item)})},_renderItemData:function(ul,item){return this._renderItem(ul,item).data("ui-autocomplete-item",item)},_renderItem:function(ul,item){return $("<li>").append($("<div>").text(item.label)).appendTo(ul)},_move:function(direction,event){if(this.menu.element.is(":visible"))return this.menu.isFirstItem()&&/^previous/.test(direction)||this.menu.isLastItem()&&/^next/.test(direction)?(this.isMultiLine||this._value(this.term),void this.menu.blur()):void this.menu[direction](event);this.search(null,event)},widget:function(){return this.menu.element},_value:function(){return this.valueMethod.apply(this.element,arguments)},_keyEvent:function(keyEvent,event){this.isMultiLine&&!this.menu.element.is(":visible")||(this._move(keyEvent,event),event.preventDefault())},_isContentEditable:function(element){if(!element.length)return!1;var editable=element.prop("contentEditable");return"inherit"===editable?this._isContentEditable(element.parent()):"true"===editable}}),$.extend($.ui.autocomplete,{escapeRegex:function(value){return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g,"\\$&")},filter:function(array,term){var matcher=new RegExp($.ui.autocomplete.escapeRegex(term),"i");return $.grep(array,function(value){return matcher.test(value.label||value.value||value)})}}),$.widget("ui.autocomplete",$.ui.autocomplete,{options:{messages:{noResults:"No search results.",results:function(amount){return amount+(1<amount?" results are":" result is")+" available, use up and down arrow keys to navigate."}}},__response:function(content){var message;this._superApply(arguments),this.options.disabled||this.cancelSearch||(message=content&&content.length?this.options.messages.results(content.length):this.options.messages.noResults,clearTimeout(this.liveRegionTimer),this.liveRegionTimer=this._delay(function(){this.liveRegion.html($("<div>").text(message))},100))}}),$.ui.autocomplete});
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