(function($){$.fn.tokenInput=function(url,options){var settings=$.extend({url:url,hintText:"Type in a search term",noResultsText:"No results",searchingText:"Searching...",searchDelay:300,minChars:1,tokenLimit:null,jsonContainer:null,method:"GET",contentType:"json",queryParam:"q",onResult:null},options);settings.classes=$.extend({tokenList:"token-input-list",token:"token-input-token",tokenDelete:"token-input-delete-token",selectedToken:"token-input-selected-token",highlightedToken:"token-input-highlighted-token",
dropdown:"token-input-dropdown",dropdownItem:"token-input-dropdown-item",dropdownItem2:"token-input-dropdown-item2",selectedDropdownItem:"token-input-selected-dropdown-item",inputToken:"token-input-input-token"},options.classes);return this.each(function(){var list=new $.TokenList(this,settings)})};$.TokenList=function(input,settings){var POSITION={BEFORE:0,AFTER:1,END:2};var KEY={BACKSPACE:8,TAB:9,RETURN:13,ESC:27,LEFT:37,UP:38,RIGHT:39,DOWN:40,COMMA:188};var saved_tokens=[];var token_count=0;var cache=
new $.TokenList.Cache;var timeout;var input_box=$('<input type="text">').css({outline:"none"}).focus(function(){if(settings.tokenLimit==null||settings.tokenLimit!=token_count)show_dropdown_hint()}).blur(function(){hide_dropdown()}).keydown(function(event){var previous_token;var next_token;switch(event.keyCode){case KEY.LEFT:case KEY.RIGHT:case KEY.UP:case KEY.DOWN:if(!$(this).val()){previous_token=input_token.prev();next_token=input_token.next();if(previous_token.length&&previous_token.get(0)===selected_token||
next_token.length&&next_token.get(0)===selected_token)if(event.keyCode==KEY.LEFT||event.keyCode==KEY.UP)deselect_token($(selected_token),POSITION.BEFORE);else deselect_token($(selected_token),POSITION.AFTER);else if((event.keyCode==KEY.LEFT||event.keyCode==KEY.UP)&&previous_token.length)select_token($(previous_token.get(0)));else if((event.keyCode==KEY.RIGHT||event.keyCode==KEY.DOWN)&&next_token.length)select_token($(next_token.get(0)))}else{var dropdown_item=null;if(event.keyCode==KEY.DOWN||event.keyCode==
KEY.RIGHT)dropdown_item=$(selected_dropdown_item).next();else dropdown_item=$(selected_dropdown_item).prev();if(dropdown_item.length)select_dropdown_item(dropdown_item);return false}break;case KEY.BACKSPACE:previous_token=input_token.prev();if(!$(this).val().length){if(selected_token)delete_token($(selected_token));else if(previous_token.length)select_token($(previous_token.get(0)));return false}else if($(this).val().length==1)hide_dropdown();else setTimeout(function(){do_search(false)},5);break;
case KEY.TAB:case KEY.RETURN:case KEY.COMMA:if(selected_dropdown_item){add_token($(selected_dropdown_item));return false}break;case KEY.ESC:hide_dropdown();return true;default:if(is_printable_character(event.keyCode))setTimeout(function(){do_search(false)},5);break}});var hidden_input=$(input).hide().focus(function(){input_box.focus()}).bind("change_url",function(event,url){settings.url=url}).blur(function(){input_box.blur()});var selected_token=null;var selected_dropdown_item=null;var token_list=
$("<ul />").addClass(settings.classes.tokenList).insertAfter(hidden_input).click(function(event){var li=get_element_from_event(event,"li");if(li&&li.get(0)!=input_token.get(0)){toggle_select_token(li);return false}else{input_box.focus();if(selected_token)deselect_token($(selected_token),POSITION.END)}}).mouseover(function(event){var li=get_element_from_event(event,"li");if(li&&selected_token!==this)li.addClass(settings.classes.highlightedToken)}).mouseout(function(event){var li=get_element_from_event(event,
"li");if(li&&selected_token!==this)li.removeClass(settings.classes.highlightedToken)}).mousedown(function(event){var li=get_element_from_event(event,"li");if(li)return false});var dropdown=$("<div>").addClass(settings.classes.dropdown).insertAfter(token_list).hide();var input_token=$("<li />").addClass(settings.classes.inputToken).appendTo(token_list).append(input_box);init_list();function init_list(){li_data=settings.prePopulate;if(li_data&&li_data.length)for(var i in li_data){var this_token=$("<li><p>"+
li_data[i].name+"</p> </li>").addClass(settings.classes.token).insertBefore(input_token);$("<span>x</span>").addClass(settings.classes.tokenDelete).appendTo(this_token).click(function(){delete_token($(this).parent());return false});$.data(this_token.get(0),"tokeninput",{id:li_data[i].id,name:li_data[i].name});input_box.val("").focus();hide_dropdown();var id_string=li_data[i].id+",";hidden_input.val(hidden_input.val()+id_string)}}function is_printable_character(keycode){if(keycode>=48&&keycode<=90||
keycode>=96&&keycode<=111||keycode>=186&&keycode<=192||keycode>=219&&keycode<=222)return true;else return false}function get_element_from_event(event,element_type){var target=$(event.target);var element=null;if(target.is(element_type))element=target;else if(target.parent(element_type).length)element=target.parent(element_type+":first");return element}function insert_token(id,value){var this_token=$("<li><p>"+value+"</p> </li>").addClass(settings.classes.token).insertBefore(input_token);$("<span>x</span>").addClass(settings.classes.tokenDelete).appendTo(this_token).click(function(){delete_token($(this).parent());
return false});$.data(this_token.get(0),"tokeninput",{id:id,name:value});return this_token}function add_token(item){var li_data=$.data(item.get(0),"tokeninput");var this_token=insert_token(li_data.id,li_data.name);input_box.val("").focus();hide_dropdown();var id_string=li_data.id+",";hidden_input.val(hidden_input.val()+id_string);token_count++;if(settings.tokenLimit!=null&&settings.tokenLimit>=token_count){input_box.hide();hide_dropdown()}}function select_token(token){token.addClass(settings.classes.selectedToken);
selected_token=token.get(0);input_box.val("");hide_dropdown()}function deselect_token(token,position){token.removeClass(settings.classes.selectedToken);selected_token=null;if(position==POSITION.BEFORE)input_token.insertBefore(token);else if(position==POSITION.AFTER)input_token.insertAfter(token);else input_token.appendTo(token_list);input_box.focus()}function toggle_select_token(token){if(selected_token==token.get(0))deselect_token(token,POSITION.END);else{if(selected_token)deselect_token($(selected_token),
POSITION.END);select_token(token)}}function delete_token(token){var token_data=$.data(token.get(0),"tokeninput");token.remove();selected_token=null;input_box.focus();var str=hidden_input.val();var start=str.indexOf(token_data.id+",");var end=str.indexOf(",",start)+1;if(end>=str.length)hidden_input.val(str.slice(0,start));else hidden_input.val(str.slice(0,start)+str.slice(end,str.length));token_count--;if(settings.tokenLimit!=null)input_box.show().val("").focus()}function hide_dropdown(){dropdown.hide().empty();
selected_dropdown_item=null}function show_dropdown_searching(){dropdown.html("<p>"+settings.searchingText+"</p>").show()}function show_dropdown_hint(){dropdown.html("<p>"+settings.hintText+"</p>").show()}function highlight_term(value,term){return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)("+term+")(?![^<>]*>)(?![^&;]+;)","gi"),"<b>$1</b>")}function populate_dropdown(query,results){if(results.length){dropdown.empty();var dropdown_ul=$("<ul>").appendTo(dropdown).mouseover(function(event){select_dropdown_item(get_element_from_event(event,
"li"))}).click(function(event){add_token(get_element_from_event(event,"li"))}).mousedown(function(event){return false}).hide();for(var i in results)if(results.hasOwnProperty(i)){var this_li=$("<li>"+highlight_term(results[i].name,query)+"</li>").appendTo(dropdown_ul);if(i%2)this_li.addClass(settings.classes.dropdownItem);else this_li.addClass(settings.classes.dropdownItem2);if(i==0)select_dropdown_item(this_li);$.data(this_li.get(0),"tokeninput",{id:results[i].id,name:results[i].name})}dropdown.show();
dropdown_ul.slideDown("fast")}else dropdown.html("<p>"+settings.noResultsText+"</p>").show()}function select_dropdown_item(item){if(item){if(selected_dropdown_item)deselect_dropdown_item($(selected_dropdown_item));item.addClass(settings.classes.selectedDropdownItem);selected_dropdown_item=item.get(0)}}function deselect_dropdown_item(item){item.removeClass(settings.classes.selectedDropdownItem);selected_dropdown_item=null}function do_search(immediate){var query=input_box.val().toLowerCase();if(query&&
query.length){if(selected_token)deselect_token($(selected_token),POSITION.AFTER);if(query.length>=settings.minChars){show_dropdown_searching();if(immediate)run_search(query);else{clearTimeout(timeout);timeout=setTimeout(function(){run_search(query)},settings.searchDelay)}}else hide_dropdown()}}function run_search(query){var cached_results=cache.get(query);if(cached_results)populate_dropdown(query,cached_results);else{var queryStringDelimiter=settings.url.indexOf("?")<0?"?":"&";var callback=function(results){if($.isFunction(settings.onResult))results=
settings.onResult.call(this,results);cache.add(query,settings.jsonContainer?results[settings.jsonContainer]:results);populate_dropdown(query,settings.jsonContainer?results[settings.jsonContainer]:results)};var form=$(input_box).parents("form:first");var data={};if(form.length)data=$.J.form.extract(form);if(settings.method=="POST")$.post(settings.url+queryStringDelimiter+settings.queryParam+"="+query,$.toJSON(data),callback,settings.contentType);else $.get(settings.url+queryStringDelimiter+settings.queryParam+
"="+query,data,callback,settings.contentType)}}};$.TokenList.Cache=function(options){var settings=$.extend({max_size:50},options);var data={};var size=0;var flush=function(){data={};size=0};this.add=function(query,results){if(size>settings.max_size)flush();if(!data[query])size++;data[query]=results};this.get=function(query){return data[query]}}})(jQuery);