2010-05-03 15:23:44 -04:00
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(function($){$.suggest=function(input,options){var $input,$results,timeout,prevLength,cache,cacheSize;$input=$(input).attr("autocomplete","off");$results=$(document.createElement("ul"));timeout=false;prevLength=0;cache=[];cacheSize=0;$results.addClass(options.resultsClass).appendTo("body");resetPosition();$(window).load(resetPosition).resize(resetPosition);$input.blur(function(){setTimeout(function(){$results.hide()},200)});if($.browser.msie){try{$results.bgiframe()}catch(e){}}if($.browser.mozilla){$input.keypress(processKey)}else{$input.keydown(processKey)}function resetPosition(){var offset=$input.offset();$results.css({top:(offset.top+input.offsetHeight)+"px",left:offset.left+"px"})}function processKey(e){if((/27$|38$|40$/.test(e.keyCode)&&$results.is(":visible"))||(/^13$|^9$/.test(e.keyCode)&&getCurrentResult())){if(e.preventDefault){e.preventDefault()}if(e.stopPropagation){e.stopPropagation()}e.cancelBubble=true;e.returnValue=false;switch(e.keyCode){case 38:prevResult();break;case 40:nextResult();break;case 9:case 13:selectCurrentResult();break;case 27:$results.hide();break}}else{if($input.val().length!=prevLength){if(timeout){clearTimeout(timeout)}timeout=setTimeout(suggest,options.delay);prevLength=$input.val().length}}}function suggest(){var q=$.trim($input.val()),multipleSepPos,items;if(options.multiple){multipleSepPos=q.lastIndexOf(options.multipleSep);if(multipleSepPos!=-1){q=$.trim(q.substr(multipleSepPos+options.multipleSep.length))}}if(q.length>=options.minchars){cached=checkCache(q);if(cached){displayItems(cached.items)}else{$.get(options.source,{q:q},function(txt){$results.hide();items=parseTxt(txt,q);displayItems(items);addToCache(q,items,txt.length)})}}else{$results.hide()}}function checkCache(q){var i;for(i=0;i<cache.length;i++){if(cache[i]["q"]==q){cache.unshift(cache.splice(i,1)[0]);return cache[0]}}return false}function addToCache(q,items,size){var cached;while(cache.length&&(cacheSize+size>options.maxCacheSize)){cached=cache.pop();cacheSize-=cached.size}cache.push({q:q,size:size,items:items});cacheSize+=size}function displayItems(items){var html="",i;if(!items){return}if(!items.length){$results.hide();return}resetPosition();for(i=0;i<items.length;i++){html+="<li>"+items[i]+"</li>"}$results.html(html).show();$results.children("li").mouseover(function(){$results.children("li").removeClass(options.selectClass);$(this).addClass(options.selectClass)}).click(function(e){e.preventDefault();e.stopPropagation();selectCurrentResult()})}function parseTxt(txt,q){var items=[],tokens=txt.split(options.delimiter),i,token;for(i=0;i<tokens.length;i++){token=$.trim(tokens[i]);if(token){token=token.replace(new RegExp(q,"ig"),function(q){return'<span class="'+options.matchClass+'">'+q+"</span>"});items[items.length]=token}}return items}function getCurrentResult(){var $currentResult;if(!$results.is(":visible")){return false}$currentResult=$results.children("li."+options.selectClass);if(!$currentResult.length){$currentResult=false}return $currentResult}function selectCurrentResult(){$currentResult=getCurrentResult();if($currentResult){if(options.multiple){if($input.val().indexOf(options.multipleSep)!=-1){$currentVal=$input.val().substr(0,($input.val().lastIndexOf(options.multipleSep)+options.multipleSep.length))}else{$currentVal=""}$input.val($currentVal+$currentResult.text()+options.multipleSep);$input.focus()}else{$input.val($currentResult.text())}$results.hide();if(options.onSelect){options.onSelect.apply($input[0])}}}function nextResult(){$currentResult=getCurrentResult();if($currentResult){$currentResult.removeClass(options.selectClass).next().addClass(options.selectClass)}else{$results.children("li:first-child").addClass(options.selectClass)}}function prevResult(){var $currentResult=getCurrentResult();if($currentResult){$currentResult.removeClass(options.selectClass).prev().addClass(options.selectClass)}else{$results.children("li:last-child").addClass(options.selectClass)}}};$.fn.suggest=function(source,options){if(!source){return}options=options||{};options.multiple=options.multiple||false;options.multipleSep=op
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