jquery.autocomplete.min.js

/*
 * jQuery Autocomplete plugin 1.2.1
 *
 * Copyright (c) 2009 Jörn Zaefferer
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * With small modifications by Alfonso Gómez-Arzola.
 * See changelog for details.
 *
 */;(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?10:150},options);options.highlight=options.highlight||function(value){return value};options.formatMatch=options.formatMatch||options.formatItem;return this.each(function(){new $.Autocompleter(this,options)})},result:function(handler){return this.bind("result",handler)},search:function(handler){return this.trigger("search",[handler])},flushCache:function(){return this.trigger("flushCache")},setOptions:function(options){return this.trigger("setOptions",[options])},unautocomplete:function(){return this.trigger("unautocomplete")}});$.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 $input=$(input).attr("autocomplete","off").addClass(options.inputClass);var timeout;var previousValue="";var cache=$.Autocompleter.Cache(options);var hasFocus=0;var lastKeyPressCode;var config={mouseDownOnSelect:false};var select=$.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){hasFocus=1;lastKeyPressCode=event.keyCode;switch(event.keyCode){case KEY.UP:if(select.visible()){event.preventDefault();select.prev()}else{onChange(0,true)}break;case KEY.DOWN:if(select.visible()){event.preventDefault();select.next()}else{onChange(0,true)}break;case KEY.PAGEUP:if(select.visible()){event.preventDefault();select.pageUp()}else{onChange(0,true)}break;case KEY.PAGEDOWN:if(select.visible()){event.preventDefault();select.pageDown()}else{onChange(0,true)}break;case options.multiple&&$.trim(options.multipleSeparator)==","&&KEY.COMMA: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}}).focus(function(){hasFocus++}).blur(function(){hasFocus=0;if(!config.mouseDownOnSelect){hideResults()}}).click(function(){if(options.clickFire){if(!select.visible()){onChange(0,true)}}else{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($input.val()),function(i,value){request(value,findValueCallback,findValueCallback)})}).bind("flushCache",function(){cache.flush()}).bind("setOptions",function(){$.extend(true,options,arguments[1]);if("data"in arguments[1])cache.populate()}).bind("unautocomplete",function(){select.unbind();$input.unbind();$(input.form).unbind(".autocomplete")});function selectCurrent(){var selected=select.selected();if(!selected)return false;var v=selected.result;previousValue=v;if(options.multiple){var words=trimWords($input.val());if(words.length>1){var seperator=options.multipleSeparator.length;var cursorAt=$(input).selection().start;var wordAt,progress=0;$.each(words,function(i,word){progress+=word.length;if(cursorAt<=progress){wordAt=i;return false}progress+=seperator});words[wordAt]=v;v=words.join(options.multipleSeparator)}v+=options.multipleSeparator}$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){$input.addClass(options.loadingClass);if(!options.matchCase)currentValue=currentValue.toLowerCase();request(currentValue,receiveData,hideResultsNow)}else{stopLoading();select.hide()}};function trimWords(value){if(!value)return[""];if(!options.multiple)return[$.trim(value)];return $.map(value.split(options.multipleSeparator),function(word){return $.trim(value).length?$.trim(word):null})}function lastWord(value){if(!options.multiple)return value;var words=trimWords(value);if(words.length==1)return words[0];var cursorAt=$(input).selection().start;if(cursorAt==value.length){words=trimWords(value)}else{words=trimWords(value.replace(value.substring(cursorAt),""))}return words[words.length-1]}function autoFill(q,sValue){if(options.autoFill&&(lastWord($input.val()).toLowerCase()==q.toLowerCase())&&lastKeyPressCode!=KEY.BACKSPACE){$input.val($input.val()+sValue.substring(lastWord(previousValue).length));$(input).selection(previousValue.length,previousValue.length+sValue.length)}};function hideResults(){clearTimeout(timeout);timeout=setTimeout(hideResultsNow,200)};function hideResultsNow(){var wasVisible=select.visible();select.hide();clearTimeout(timeout);stopLoading();if(options.mustMatch){$input.search(function(result){if(!result){if(options.multiple){var words=trimWords($input.val()).slice(0,-1);$input.val(words.join(options.multipleSeparator)+(words.length?options.multipleSeparator:""))}else{$input.val("");$input.trigger("result",null)}}})}};function receiveData(q,data){if(data&&data.length&&hasFocus){stopLoading();select.display(data,q);autoFill(q,data[0].value);select.show()}else{hideResultsNow()}};function request(term,success,failure){if(!options.matchCase)term=term.toLowerCase();var data=cache.load(term);if(data&&data.length){success(term,data)}else if((typeof options.url=="string")&&(options.url.length>0)){var extraParams={timestamp:+new Date()};$.each(options.extraParams,function(key,param){extraParams[key]=typeof param=="function"?param():param});$.ajax({mode:"abort",port:"autocomplete"+input.name,dataType:options.dataType,url:options.url,data:$.extend({q:lastWord(term),limit:options.max},extraParams),success:function(data){var parsed=options.parse&&options.parse(data)||parse(data);cache.add(term,parsed);success(term,parsed)}})}else{select.emptyList();failure(term)}};function parse(data){var parsed=[];var rows=data.split("\n");for(var i=0;i<rows.length;i++){var row=$.trim(rows[i]);if(row){row=row.split("|");parsed[parsed.length]={data:row,value:row[0],result:options.formatResult&&options.formatResult(row,row[0])||row[0]}}}return parsed};function stopLoading(){$input.removeClass(options.loadingClass)}};$.Autocompleter.defaults={inputClass:"ac_input",resultsClass:"ac_results",loadingClass:"ac_loading",minChars:1,delay:400,matchCase:false,matchSubset:true,matchContains:false,cacheLength:100,max:1000,mustMatch:false,extraParams:{},selectFirst:true,formatItem:function(row){return row[0]},formatMatch:null,autoFill:false,width:0,multiple:false,multipleSeparator:" ",inputFocus:true,clickFire:false,highlight:function(value,term){return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)("+term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi,"\\$1")+")(?![^<>]*>)(?![^&;]+;)","gi"),"<strong>$1</strong>")},scroll:true,scrollHeight:180};$.Autocompleter.Cache=function(options){var data={};var length=0;function matchSubset(s,sub){if(!options.matchCase)s=s.toLowerCase();var i=s.indexOf(sub);if(options.matchContains=="word"){i=s.toLowerCase().search("\\b"+sub.toLowerCase())}if(i==-1)return false;return i==0||options.matchContains};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)}};$.each(stMatchSets,function(i,value){options.cacheLength++;add(i,value)})}setTimeout(populate,25);function flush(){data={};length=0}return{flush:flush,add:add,populate:populate,load:function(q){if(!options.cacheLength||!length)return null;if(!options.url&&options.matchContains){var csub=[];for(var k in data){if(k.length>0){var c=data[k];$.each(c,function(i,x){if(matchSubset(x.value,q)){csub.push(x)}})}}return csub}else if(data[q]){return data[q]}else if(options.matchSubset){for(var i=q.length-1;i>=options.minChars;i--){var c=data[q.substr(0,i)];if(c){var csub=[];$.each(c,function(i,x){if(matchSubset(x.value,q)){csub[csub.length]=x}});return csub}}}return null}}};$.Autocompleter.Select=function(options,input,select,config){var CLASSES={ACTIVE:"ac_over"};var listItems,active=-1,data,term="",needsInit=true,element,list;function init(){if(!needsInit)return;element=$("<div/>").hide().addClass(options.resultsClass).css("position","absolute").appendTo(document.body).hover(function(event){if($(this).is(":visible")){input.focus()}config.mouseDownOnSelect=false;console.debug(config.mouseDownOnSelect)});list=$("<ul/>").appendTo(element).mouseover(function(event){if(target(event).nodeName&&target(event).nodeName.toUpperCase()=='LI'){active=$("li",list).removeClass(CLASSES.ACTIVE).index(target(event));$(target(event)).addClass(CLASSES.ACTIVE)}}).click(function(event){$(target(event)).addClass(CLASSES.ACTIVE);select();if(options.inputFocus)input.focus();return false}).mousedown(function(){config.mouseDownOnSelect=true}).mouseup(function(){config.mouseDownOnSelect=false});if(options.width>0)element.css("width",options.width);needsInit=false}function target(event){var element=event.target;while(element&&element.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 fillList(){list.empty();var max=limitNumberOfItems(data.length);for(var i=0;i<max;i++){if(!data[i])continue;var formatted=options.formatItem(data[i].data,i+1,max,data[i].value,term);if(formatted===false)continue;var li=$("<li/>").html(options.highlight(formatted,term)).addClass(i%2==0?"ac_even":"ac_odd").appendTo(list)[0];$.data(li,"ac_data",data[i])}listItems=list.find("li");if(options.selectFirst){listItems.slice(0,1).addClass(CLASSES.ACTIVE);active=0}if($.fn.bgiframe)list.bgiframe()}return{display:function(d,q){init();data=d;term=q;fillList()},next:function(){moveSelect(1)},prev:function(){moveSelect(-1)},pageUp:function(){if(active!=0&&active-8<0){moveSelect(-active)}else{moveSelect(-8)}},pageDown:function(){if(active!=listItems.size()-1&&active+8>listItems.size()){moveSelect(listItems.size()-1-active)}else{moveSelect(8)}},hide:function(){element&&element.hide();listItems&&listItems.removeClass(CLASSES.ACTIVE);active=-1},visible:function(){return element&&element.is(":visible")},current:function(){return this.visible()&&(listItems.filter("."+CLASSES.ACTIVE)[0]||options.selectFirst&&listItems[0])},show:function(){var offset=$(input).offset();element.css({width:typeof options.width=="string"||options.width>0?options.width:$(input).width(),top:offset.top+input.offsetHeight,left:offset.left}).show();if(options.scroll){list.scrollTop(0);list.css({maxHeight:options.scrollHeight,overflow:'auto'});if($.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);return selected&&selected.length&&$.data(selected[0],"ac_data")},emptyList:function(){list&&list.empty()},unbind:function(){element&&element.remove()}}};$.fn.selection=function(start,end){if(start!==undefined){return this.each(function(){if(this.createTextRange){var selRange=this.createTextRange();if(end===undefined||start==end){selRange.move("character",start);selRange.select()}else{selRange.collapse(true);selRange.moveStart("character",start);selRange.moveEnd("character",end);selRange.select()}}else if(this.setSelectionRange){this.setSelectionRange(start,end)}else if(this.selectionStart){this.selectionStart=start;this.selectionEnd=end}})}var field=this[0];if(field.createTextRange){var range=document.selection.createRange(),orig=field.value,teststring="<->",textLength=range.text.length;range.text=teststring;var caretAt=field.value.indexOf(teststring);field.value=orig;this.selection(caretAt,caretAt+textLength);return{start:caretAt,end:caretAt+textLength}}else if(field.selectionStart!==undefined){return{start:field.selectionStart,end:field.selectionEnd}}}})(jQuery);