/*
 * SearchNavigator - based on the Autocomplete jQuery plugin.
 *
 * Copyright (c) 2007 Dylan Verheul, Dan G. Switzer, Anjesh Tuladhar, Jörn Zaefferer
 *
 * The code has been used under the MIT license:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Version: $Id: sn.min.js,v 1.1 2009-12-06 10:26:05 weitemeyer Exp $
 *
 */
;(function($){$.fn.extend({autocomplete:function(urlOrData,options){var isUrl=typeof urlOrData=="string";options=$.extend({},$.Autocompleter.defaults,{url:isUrl?urlOrData:null,data:isUrl?null:urlOrData,delay:isUrl?$.Autocompleter.defaults.delay:10,max:options&&!options.scroll?$.Autocompleter.defaults.max:50},options);options.highlight=options.highlight||function(value){return value;};options.formatMatch=options.formatMatch||options.formatItem;return this.each(function(){new $.Autocompleter(this,options);});},result:function(handler){return this.bind("result",handler);},search:function(handler){return this.trigger("search",[handler]);},triggerSearch:function(query){return this.trigger("triggerSearch",[query]);},flushCache:function(){return this.trigger("flushCache");},setOptions:function(options){return this.trigger("setOptions",[options]);},unautocomplete:function(){return this.trigger("unautocomplete");}});$.Autocompleter=function(input,options){var KEY={UP:38,DOWN:40,DEL:46,TAB:9,RETURN:13,ESC:27,COMMA:188,PAGEUP:33,PAGEDOWN:34,BACKSPACE:8};var mousepos={X:0,Y:0};$().mousemove(function(e){mousepos.X=e.pageX;mousepos.Y=e.pageY;});var $input=$(input).attr("autocomplete","off").addClass(options.inputClass);var timeout;var previousValue="";var cache=$.Autocompleter.Cache(options);var hasFocus=0;var stopBlur=false;var lastKeyPressCode;var config={mouseDownOnSelect:false};var select=$.Autocompleter.Select(options,input,selectCurrent,config);var blockSubmit;$.browser.opera&&$(input.form).bind("submit.autocomplete",function(){if(blockSubmit){blockSubmit=false;return false;}});$input.bind(($.browser.opera?"keypress":"keydown")+".autocomplete",function(event){lastKeyPressCode=event.keyCode;switch(event.keyCode){case KEY.UP:event.preventDefault();if(select.visible()){select.prev();}else{onChange(0,true);}
break;case KEY.DOWN:event.preventDefault();if(select.visible()){select.next();}else{onChange(0,true);}
break;case KEY.PAGEUP:event.preventDefault();if(select.visible()){select.pageUp();}else{onChange(0,true);}
break;case KEY.PAGEDOWN:event.preventDefault();if(select.visible()){select.pageDown();}else{onChange(0,true);}
break;case KEY.TAB:case KEY.RETURN:if(selectCurrent()){event.preventDefault();blockSubmit=true;return false;}
break;case KEY.ESC:select.hide();break;default:clearTimeout(timeout);timeout=setTimeout(onChange,options.delay);break;}}).keypress(function(){}).focus(function(){hasFocus++;}).blur(function(){hasFocus=0;if(options.scroll){var offset=select.boxOffset();if(!offset){hideResults();return;}
var leftMax=offset.left+offset.width;var topMax=offset.top+offset.height;if((mousepos.X>offset.left&&mousepos.X<leftMax)&&(mousepos.Y>offset.top&&mousepos.Y<topMax)){$input.focus();}else if(document.activeElement&&document.activeElement.tagName=='HTML'){$input.focus();}else{if(!config.mouseDownOnSelect){hideResults();}}}else if(document.activeElement&&document.activeElement.tagName=='HTML'){$input.focus();}else{if(!config.mouseDownOnSelect){hideResults();}}}).bind("stopBlur",function(){clearTimeout(timeout);timeout=setTimeout(refocus,50);}).click(function(){if(hasFocus++>1&&!select.visible()){onChange(0,true);}}).bind("search",function(){var fn=(arguments.length>1)?arguments[1]:null;function findValueCallback(q,data){var result;if(data&&data.length){for(var i=0;i<data.length;i++){if(data[i].result.toLowerCase()==q.toLowerCase()){result=data[i];break;}}}
if(typeof fn=="function")fn(result);else $input.trigger("result",result&&[result.data,result.value]);}
$.each(trimWords($input.val()),function(i,value){request(value,findValueCallback,findValueCallback);});}).bind("triggerSearch",function(){if(select.visible()){$input.blur();return;}
var term=(arguments.length>1)?arguments[1]:null;if(term){$input.focus();$input.addClass(options.loadingClass);request(term,receiveData,hideResultsNow);}}).bind("flushCache",function(){cache.flush();}).bind("setOptions",function(){$.extend(options,arguments[1]);if("data"in arguments[1])
cache.populate();}).bind("unautocomplete",function(){select.unbind();$input.unbind();$input.unbind(".autocomplete");$(input.form).unbind(".autocomplete");});function refocus(){$input.focus();select.show();}
function selectCurrent(){var selected=select.selected();if(!selected)
return false;var v=selected.result;previousValue=v;$input.val(v);hideResultsNow();$input.trigger("result",[selected.data,selected.value]);return true;}
function onChange(crap,skipPrevCheck){if(lastKeyPressCode==KEY.DEL){select.hide();return;}
var currentValue=$input.val();if(!skipPrevCheck&&currentValue==previousValue)
return;previousValue=currentValue;currentValue=lastWord(currentValue);if(currentValue.length>=options.minChars){$input.addClass(options.loadingClass);request(currentValue,receiveData,hideResultsNow);}else{stopLoading();select.hide();}};function trimWords(value){if(!value){return[""];}
return[value];}
function lastWord(value){var words=trimWords(value);return words[words.length-1];}
function autoFill(q,sValue){if(options.autoFill&&(lastWord($input.val()).toLowerCase()==q.toLowerCase())&&lastKeyPressCode!=KEY.BACKSPACE){$input.val($input.val()+sValue.substring(lastWord(previousValue).length));$.Autocompleter.Selection(input,previousValue.length,previousValue.length+sValue.length);}};function hideResults(){clearTimeout(timeout);timeout=setTimeout(hideResultsNow,200);};function hideResultsNow(){select.hide();clearTimeout(timeout);stopLoading();};function receiveData(q,data){if(data&&data.length&&hasFocus){stopLoading();select.display(data,q);select.show();}else{hideResultsNow();}};function request(term,success,failure){var data=cache.load(term);if(data&&data.length){success(term,data);}else if((typeof options.url=="string")&&(options.url.length>0)){var extraParams={limit:options.max,timestamp:+new Date()};$.each(options.extraParams,function(key,param){extraParams[key]=typeof param=="function"?param():param;});$.each(options.searchFields,function(i,key){extraParams[key]=term;});$.ajax({mode:"abort",port:"autocomplete"+input.name,dataType:options.dataType,url:options.url,data:extraParams,success:function(data){var parsed=options.parse&&options.parse(data)||parse(data);cache.add(term,parsed);success(term,parsed);}});}else{select.emptyList();failure(term);}};function parse(data){return JSON.parse(data);};function stopLoading(){$input.removeClass(options.loadingClass);};};$.Autocompleter.defaults={inputClass:"ac_input",windowClass:"ac_box",borderClass:"ac_border",headerClass:"ac_header",footerClass:"ac_footer",logoClass:"ac_logo",resultsClass:"ac_results",loadingClass:"ac_loading",treeviewClass:"treeview-famfamfam",showLogo:true,treeview:false,selectableCats:false,minChars:2,delay:300,cacheLength:0,max:15,extraParams:{},searchFields:["q"],displayField:"",selectFirst:false,formatHeader:null,formatFooter:null,formatItem:function(row,i,count,dispVal,term){return dispVal;},formatMatch:null,width:0,leftOffset:0,topOffset:0,targetDoc:document,highlight:function(value,term){return value.replace(/\$/,"<strong>").replace(/\$/,"</strong>");},scroll:false,scrollHeight:180};$.Autocompleter.Cache=function(options){var data={};var length=0;function add(q,value){if(length>options.cacheLength){flush();}
if(!data[q]){length++;}
data[q]=value;}
function populate(){if(!options.data)return false;var stMatchSets={},nullData=0;if(!options.url)options.cacheLength=1;stMatchSets[""]=[];for(var i=0,ol=options.data.length;i<ol;i++){var rawValue=options.data[i];rawValue=(typeof rawValue=="string")?[rawValue]:rawValue;var value=options.formatMatch(rawValue,i+1,options.data.length);if(value===false)
continue;var firstChar=value.charAt(0).toLowerCase();if(!stMatchSets[firstChar])
stMatchSets[firstChar]=[];var row={value:value,data:rawValue,result:options.formatResult&&options.formatResult(rawValue)||value};stMatchSets[firstChar].push(row);if(nullData++<options.max){stMatchSets[""].push(row);}};$.each(stMatchSets,function(i,value){options.cacheLength++;add(i,value);});}
setTimeout(populate,25);function flush(){data={};length=0;}
return{flush:flush,add:add,populate:populate,load:function(q){if(!options.cacheLength||!length)
return null;if(data[q])
return data[q];return null;}};};$.Autocompleter.Select=function(options,input,select,config){var CLASSES={ACTIVE:"ac_over",ITEM:"ac_item",CATEGORY:"ac_cat"};var listItems,active=-1,data,rowNr=0,rowCount=0,term="",needsInit=true,element,header,footer,list;function init(){if(!needsInit)
return;element=$("<div/>").hide().addClass(options.windowClass).css("position","absolute").appendTo(options.targetDoc.body);if(options.width>0)
element.css("width",options.width);var topBorder=$("<div/>").addClass(options.borderClass).html("<span><!-- fix for IE --></span>").appendTo(element);if(options.width>0)
topBorder.css("width",options.width);if(options.formatHeader){header=$("<div/>").addClass(options.headerClass).html(options.formatHeader()).appendTo(element);}
var resultDiv=$("<div/>").addClass(options.resultsClass).appendTo(element);list=$("<ul>").appendTo(resultDiv);if(options.treeview)
$(list).treeview({collapsed:true});if(options.formatFooter){footer=$("<div/>").addClass(options.footerClass).html(options.formatFooter()).appendTo(element);}
if(options.showLogo){$("<div/>").appendTo(element).addClass(options.logoClass).html('<span class="exo_logo">Powered by: <img alt="exorbyte" src="img/exlogo_tiny.gif" /></span>').click(function(){window.location.assign("http://www.exorbyte.com/");return false;});}
var bottomBorder=$("<div/>").addClass(options.borderClass).html("<span><!-- fix for IE --></span>").appendTo(element);if(options.width>0)
bottomBorder.css("width",options.width);needsInit=false;}
function target(event){var element=event.target;while(element&&element.tagName=="SPAN"&&element.parentNode&&element.parentNode.tagName!="LI")
element=element.parentNode;if(!element)
return[];return element;}
function moveSelect(step){listItems.slice(active,active+1).removeClass(CLASSES.ACTIVE);movePosition(step);var activeItem=listItems.slice(active,active+1).addClass(CLASSES.ACTIVE);if(options.scroll){var offset=0;listItems.slice(0,active).each(function(){offset+=this.offsetHeight;});if((offset+activeItem[0].offsetHeight-list.scrollTop())>list[0].clientHeight){list.scrollTop(offset+activeItem[0].offsetHeight-list.innerHeight());}else if(offset<list.scrollTop()){list.scrollTop(offset);}}};function movePosition(step){active+=step;if(active<0){active=listItems.size()-1;}else if(active>=listItems.size()){active=0;}}
function limitNumberOfItems(available){return options.max&&options.max<available?options.max:available;}
function createNode(parent){var dispVal=options.displayField?this.data[options.displayField]:this.text;var formatted=options.formatItem(this.data,rowNr+1,rowCount,dispVal,term);if(formatted===false){rowNr++;return true;}
var current=$("<li/>").attr("id",this.id||rowNr).appendTo(parent);var item=$("<span/>").addClass(CLASSES.ITEM).html(options.highlight(formatted,term)+"&nbsp;").appendTo(current);$.data(item[0],"ac_data",{data:this.data,value:dispVal,result:dispVal});rowNr++;if(this.data.SN_type.split("_")[0]=="cat"){current.children("span").addClass(CLASSES.CATEGORY);}
if(options.treeview&&this.expanded){current.addClass("open");}
if(this.hasChildren||this.children&&this.children.length){var branch=$("<ul/>").appendTo(current);if(this.children&&this.children.length){$.each(this.children,createNode,[branch])}}}
function addListEvents(){listItems=list.find("span."+CLASSES.ITEM)
if(!options.selectableCats){listItems=listItems.not("span."+CLASSES.CATEGORY);}
listItems.mouseover(function(event){var tgt=target(event);while(listItems.index(tgt)<0){tgt=tgt.parentNode;}
active=listItems.removeClass(CLASSES.ACTIVE).index(tgt);$(tgt).addClass(CLASSES.ACTIVE);}).click(function(event){$(target(event)).addClass(CLASSES.ACTIVE);select();input.focus();return false;}).mousedown(function(){config.mouseDownOnSelect=true;}).mouseup(function(){config.mouseDownOnSelect=false;});}
function fillList(){list.empty();rowNr=0;rowCount=data.length;child=list;$.each(data,createNode,[child]);if(options.treeview){$(list).addClass(options.treeviewClass);$(list).treeview({add:child});list.find("div."+$.fn.treeview.classes.hitarea).click(function(){$(input).trigger("stopBlur");});}
addListEvents();if(options.selectFirst&&!options.treeview){listItems.slice(0,1).addClass(CLASSES.ACTIVE);active=0;}}
return{display:function(d,q){init();data=d;term=q;fillList();if(options.formatFooter){footer.html(options.formatFooter());}
if(options.formatHeader){header.html(options.formatHeader());}},next:function(){moveSelect(1);},prev:function(){moveSelect(-1);},pageUp:function(){if(active!=0&&active-8<0){moveSelect(-active);}else{moveSelect(-8);}},pageDown:function(){if(active!=listItems.size()-1&&active+8>listItems.size()){moveSelect(listItems.size()-1-active);}else{moveSelect(8);}},hide:function(){element&&element.hide();active=-1;},visible:function(){return element&&element.is(":visible");},current:function(){return this.visible()&&(listItems.filter("."+CLASSES.ACTIVE)[0]||options.selectFirst&&listItems[0]);},boxOffset:function(){var offset=element&&element.offset();return element&&{width:element.innerWidth(),height:element.innerHeight(),top:offset.top,left:offset.left};},show:function(){var offset=$(input).offset();if($.fn.bgiframe)
element.bgiframe();element.css({width:typeof options.width=="string"||options.width>0?options.width:$(input).width(),top:offset.top+input.offsetHeight+options.topOffset,left:offset.left+options.leftOffset}).show();if(options.scroll){list.scrollTop(0);list.css({maxHeight:options.scrollHeight,overflowY:'auto'});if($.browser.msie&&typeof document.body.style.maxHeight==="undefined"){var listHeight=0;listItems.each(function(){listHeight+=this.offsetHeight;});var scrollbarsVisible=listHeight>options.scrollHeight;list.css('height',scrollbarsVisible?options.scrollHeight:listHeight);if(!scrollbarsVisible){listItems.width(list.width()-parseInt(listItems.css("padding-left"))-parseInt(listItems.css("padding-right")));}}}},selected:function(){var selected=listItems&&listItems.filter("."+CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE);if(selected&&selected.length)
var it=$.data(selected[0],"ac_data");return selected&&selected.length&&$.data(selected[0],"ac_data");},emptyList:function(){list&&list.empty();},unbind:function(){element&&element.remove();}};};$.Autocompleter.Selection=function(field,start,end){if(field.createTextRange){var selRange=field.createTextRange();selRange.collapse(true);selRange.moveStart("character",start);selRange.moveEnd("character",end);selRange.select();}else if(field.setSelectionRange){field.setSelectionRange(start,end);}else{if(field.selectionStart){field.selectionStart=start;field.selectionEnd=end;}}
field.focus();};})(jQuery);