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wezm.net/output/js/jquery.jsonSuggest.js
Wesley Moore 194890e733 Implement article search
Need to refactor the javascript into an Articles object or something that can be used to load the article data. The JS pagination functionality would then be seperate to this.
2010-03-03 08:03:23 +11:00

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4.9 KiB
JavaScript
Executable file

(function($){$.fn.jsonSuggest=function(searchData,settings){var defaults={minCharacters:1,maxResults:undefined,wildCard:"",caseSensitive:false,notCharacter:"!",maxHeight:350,highlightMatches:true,onSelect:undefined,ajaxResults:false};settings=$.extend(defaults,settings);return this.each(function(){function regexEscape(txt,omit){var specials=['/','.','*','+','?','|','(',')','[',']','{','}','\\'];if(omit){for(var i=0;i<specials.length;i++){if(specials[i]===omit){specials.splice(i,1);}}}
var escapePatt=new RegExp('(\\'+specials.join('|\\')+')','g');return txt.replace(escapePatt,'\\$1');}
var obj=$(this),wildCardPatt=new RegExp(regexEscape(settings.wildCard||''),'g'),results=$('<div />'),currentSelection,pageX,pageY;function selectResultItem(item){obj.val(item.text);$(results).html('').hide();if(typeof settings.onSelect==='function'){settings.onSelect(item);}}
function setHoverClass(el){$('div.resultItem',results).removeClass('hover');$(el).addClass('hover');currentSelection=el;}
function buildResults(resultObjects,sFilterTxt){sFilterTxt="("+sFilterTxt+")";var bOddRow=true,i,iFound=0,filterPatt=settings.caseSensitive?new RegExp(sFilterTxt,"g"):new RegExp(sFilterTxt,"ig");$(results).html('').hide();for(i=0;i<resultObjects.length;i+=1){var item=$('<div />'),text=resultObjects[i].text;if(settings.highlightMatches===true){text=text.replace(filterPatt,"<strong>$1</strong>");}
$(item).append('<p class="text">'+text+'</p>');if(typeof resultObjects[i].extra==='string'){$(item).append('<p class="extra">'+resultObjects[i].extra+'</p>');}
if(typeof resultObjects[i].image==='string'){$(item).prepend('<img src="'+resultObjects[i].image+'" />').append('<br style="clear:both;" />');}
$(item).addClass('resultItem').addClass((bOddRow)?'odd':'even').click(function(n){return function(){selectResultItem(resultObjects[n]);};}(i)).mouseover(function(el){return function(){setHoverClass(el);};}(item));$(results).append(item);bOddRow=!bOddRow;iFound+=1;if(typeof settings.maxResults==='number'&&iFound>=settings.maxResults){break;}}
if($('div',results).length>0){currentSelection=undefined;$(results).show().css('height','auto');if($(results).height()>settings.maxHeight){$(results).css({'overflow':'auto','height':settings.maxHeight+'px'});}}}
function runSuggest(e){if(this.value.length<settings.minCharacters){$(results).html('').hide();return false;}
var resultObjects=[],sFilterTxt=(!settings.wildCard)?regexEscape(this.value):regexEscape(this.value,settings.wildCard).replace(wildCardPatt,'.*'),bMatch=true,filterPatt,i;if(settings.notCharacter&&sFilterTxt.indexOf(settings.notCharacter)===0){sFilterTxt=sFilterTxt.substr(settings.notCharacter.length,sFilterTxt.length);if(sFilterTxt.length>0){bMatch=false;}}
sFilterTxt=sFilterTxt||'.*';sFilterTxt=settings.wildCard?'^'+sFilterTxt:sFilterTxt;filterPatt=settings.caseSensitive?new RegExp(sFilterTxt):new RegExp(sFilterTxt,"i");if(settings.ajaxResults===true){resultObjects=searchData(this.value,settings.wildCard,settings.caseSensitive,settings.notCharacter);if(typeof resultObjects==='string'){resultObjects=JSON.parse(resultObjects);}}
else{for(i=0;i<searchData.length;i+=1){if(filterPatt.test(searchData[i].text)===bMatch){resultObjects.push(searchData[i]);}}}
buildResults(resultObjects,sFilterTxt);}
function keyListener(e){switch(e.keyCode){case 13:$(currentSelection).trigger('click');return false;case 40:if(typeof currentSelection==='undefined'){currentSelection=$('div.resultItem:first',results).get(0);}
else{currentSelection=$(currentSelection).next().get(0);}
setHoverClass(currentSelection);if(currentSelection){$(results).scrollTop(currentSelection.offsetTop);}
return false;case 38:if(typeof currentSelection==='undefined'){currentSelection=$('div.resultItem:last',results).get(0);}
else{currentSelection=$(currentSelection).prev().get(0);}
setHoverClass(currentSelection);if(currentSelection){$(results).scrollTop(currentSelection.offsetTop);}
return false;default:runSuggest.apply(this,[e]);}}
$(results).addClass('jsonSuggestResults').css({'top':(obj.position().top+obj.height()+5)+'px','left':obj.position().left+'px','width':obj.width()+'px'}).hide();obj.after(results).keyup(keyListener).blur(function(e){var resPos=$(results).offset();resPos.bottom=resPos.top+$(results).height();resPos.right=resPos.left+$(results).width();if(pageY<resPos.top||pageY>resPos.bottom||pageX<resPos.left||pageX>resPos.right){$(results).hide();}}).focus(function(e){$(results).css({'top':(obj.position().top+obj.height()+5)+'px','left':obj.position().left+'px'});if($('div',results).length>0){$(results).show();}}).attr('autocomplete','off');$().mousemove(function(e){pageX=e.pageX;pageY=e.pageY;});if($.browser.opera){obj.keydown(function(e){if(e.keyCode===40){return keyListener(e);}});}
settings.notCharacter=regexEscape(settings.notCharacter||'');if(!settings.ajaxResults){if(typeof searchData==='function'){searchData=searchData();}
if(typeof searchData==='string'){searchData=JSON.parse(searchData);}}});};})(jQuery);