(function($){$.fn.autocomplete=function(options){return this.each(function(){return new Autocomplete(this,options);});};var Autocomplete=function(el,options){this.el=$(el);this.id=this.el.attr('id');this.el.attr('autocomplete','off');this.suggestions=[];this.data=[];this.selectedIndex=-1;this.currentValue=this.el.val();this.intervalId=0;this.cachedResponse=[];this.onChangeInterval=null;this.ignoreValueChange=false;this.serviceUrl=options.serviceUrl;this.options={autoSubmit:false,minChars:1,maxHeight:700,deferRequestBy:0,width:0,highlight:true,searchparam:"artist",params:{}};if(options){$.extend(this.options,options);}
this.initialize();};Autocomplete.isArray=function(obj){return obj&&obj.constructor===Array;};Autocomplete.prototype={killerFn:null,initialize:function(){var me=this;this.killerFn=function(e){if($(e.target).parents('.autocomplete').size()===0){me.killSuggestions();me.disableKillerFn();}};var uid=new Date().getTime();var autocompleteElId='Autocomplete_'+uid;if(!this.options.width){this.options.width=this.el.width();}
this.mainContainerId='AutocompleteContainter_'+uid;$('<div class="autocomplete" id="'+autocompleteElId+'"></div>').appendTo('body');this.container=$('#'+autocompleteElId);this.fixPosition(this.container);if(window.opera){this.el.keypress(function(e){me.onKeyPress(e);});}else{this.el.keydown(function(e){me.onKeyPress(e);});}
this.el.keyup(function(e){me.onKeyUp(e);});this.el.blur(function(){me.enableKillerFn();});this.el.focus(function(){me.fixPosition(me.container);});},fixPosition:function(thisdiv){var offset=this.el.offset();thisdiv.css({top:(offset.top+this.el.innerHeight())+'px',left:offset.left+'px'});},enableKillerFn:function(){var me=this;$(document).bind('click',me.killerFn);},disableKillerFn:function(){var me=this;$(document).unbind('click',me.killerFn);},killSuggestions:function(){var me=this;this.stopKillSuggestions();this.intervalId=window.setInterval(function(){me.hide();me.stopKillSuggestions();},300);},stopKillSuggestions:function(){window.clearInterval(this.intervalId);},onKeyPress:function(e){defaultaction=false;if(!this.enabled){return;}
switch(e.keyCode){case 27:this.el.val(this.currentValue);this.onSelect(-1);this.hide();break;case 9:case 13:if(this.selectedIndex===-1){this.hide();return;};this.select(this.selectedIndex);if(e.keyCode===9){return;}
defaultaction=true;break;case 38:this.moveUp();break;case 40:this.moveDown();break;default:return;}
if(defaultaction==false)e.preventDefault();},onKeyUp:function(e){switch(e.keyCode){case 38:case 40:return;}
clearInterval(this.onChangeInterval);if(this.currentValue!==this.el.val()){if(this.options.deferRequestBy>0){var me=this;this.onChangeInterval=setInterval(function(){me.onValueChange();},this.options.deferRequestBy);}else{this.onValueChange();}}},onValueChange:function(){clearInterval(this.onChangeInterval);this.currentValue=this.el.val();this.selectedIndex=-1;if(this.ignoreValueChange){this.ignoreValueChange=false;return;}
if(this.currentValue===''||this.currentValue.length<this.options.minChars){this.hide();}else{this.getSuggestions();}},getSuggestions:function(){var cr=this.cachedResponse[this.currentValue];if(cr&&Autocomplete.isArray(cr.suggestions)){this.suggestions=cr.suggestions;this.data=cr.data;this.suggest();}
var me=this;$.get(this.serviceUrl+"?"+this.options.searchparam+"="+escape(this.currentValue),{},function(json){me.processResponse(json);},'json');},hide:function(){this.enabled=false;this.selectedIndex=-1;this.container.hide();},suggest:function(){if(this.suggestions.length===0){this.hide();return;}
var me,len,div,f;me=this;len=this.suggestions.length;this.container.hide().empty();for(var i=0;i<len;i++){div=$((me.selectedIndex===i?'<div class="selected"':'<div')+' title="buddy'+this.suggestions[i]+'">'+this.suggestions[i]+'</div>');div.mouseover((function(xi){return function(){me.activate(xi);};})(i));div.click((function(xi){return function(){me.select(xi);};})(i));this.container.append(div);}
this.enabled=true;this.container.show();},processResponse:function(json){var response;var thesuggested=new Array();var theids=new Array();var queried;try{response=json;if(!Autocomplete.isArray(response.data)){response.data=[];}}catch(err){return;}
$.each(response["SearchAutoComplete"],function(i,item){thesuggested[i]=item.name;theids[i]=item.id;if(i==0)queried=item.query;})
this.suggestions=thesuggested;this.theids=theids;this.data=response.data;this.cachedResponse[queried]=response;this.suggest();},activate:function(index){var divs=this.container.children();var activeItem;if(this.selectedIndex!==-1&&divs.length>this.selectedIndex){$(divs.get(this.selectedIndex)).attr('class','');}
this.selectedIndex=index;if(this.selectedIndex!==-1&&divs.length>this.selectedIndex){activeItem=divs.get(this.selectedIndex);$(activeItem).attr('class','selected');}
return activeItem;},deactivate:function(div,index){div.className='';if(this.selectedIndex===index){this.selectedIndex=-1;}},select:function(i){var selectedValue=this.suggestions[i];if(selectedValue){this.el.val(selectedValue);if(this.options.autoSubmit){var f=this.el.parents('form');if(f.length>0){f.get(0).submit();}}
this.ignoreValueChange=true;this.hide();this.onSelect(i);}},moveUp:function(){if(this.selectedIndex===-1){return;}
if(this.selectedIndex===0){this.container.children().get(0).className='';this.selectedIndex=-1;this.el.val(this.currentValue);this.onSelect(-1);return;}
this.adjustScroll(this.selectedIndex-1);},moveDown:function(){if(this.selectedIndex===(this.suggestions.length-1)){return;}
this.adjustScroll(this.selectedIndex+1);},adjustScroll:function(i){var activeItem,offsetTop,upperBound,lowerBound;activeItem=this.activate(i);offsetTop=activeItem.offsetTop;upperBound=this.container.scrollTop();lowerBound=upperBound+this.options.maxHeight-25;if(offsetTop<upperBound){this.container.scrollTop(offsetTop);}else if(offsetTop>lowerBound){this.container.scrollTop(offsetTop-this.options.maxHeight+25);}
this.el.val(this.suggestions[i]);this.onSelect(i);},onSelect:function(i){(this.options.onSelect||function(){})(this.suggestions[i],i==-1?"":this.theids[i]);}};})(jQuery);