if(typeof KISSY==="undefined"||!KISSY){KISSY={};}(function(NS){var Y=YAHOO.util,Dom=Y.Dom,Event=Y.Event,Lang=YAHOO.lang,head=document.getElementsByTagName("head")[0],ie=YAHOO.env.ua.ie,ie6=(ie===6),CALLBACK_STR="KISSY.Suggest.callback",STYLE_ID="suggest-style",BEFORE_DATA_REQUEST="beforeDataRequest",ON_DATA_RETURN="onDataReturn",BEFORE_SHOW="beforeShow",ON_ITEM_SELECT="onItemSelect",defaultConfig={containerClassName:"suggest-container",containerWidth:"auto",keyElClassName:"suggest-key",resultElClassName:"suggest-result",resultFormat:"约%result%条结果",selectedItemClassName:"selected",bottomClassName:"suggest-bottom",showCloseBtn:false,closeBtnText:"关闭",closeBtnClassName:"suggest-close-btn",useShim:ie6,shimClassName:"suggest-shim",timerDelay:200,autoFocus:false,submitFormOnClickSelect:true};NS.Suggest=function(textInput,dataSource,config){this.textInput=Dom.get(textInput);this.dataSource=dataSource;this.JSONDataSource=Lang.isObject(dataSource)?dataSource:null;this.returnedData=null;this.config=Lang.merge(defaultConfig,config||{});this.container=null;this.query="";this.queryParams="";this._timer=null;this._isRunning=false;this.dataScript=null;this._dataCache={};this._latestScriptTime="";this._scriptDataIsOut=false;this._onKeyboardSelecting=false;this.selectedItem=null;this._init();};NS.Suggest.prototype={_init:function(){this._initTextInput();this._initContainer();if(this.config.useShim)this._initShim();this._initStyle();this.createEvent(BEFORE_DATA_REQUEST);this.createEvent(ON_DATA_RETURN);this.createEvent(BEFORE_SHOW);this.createEvent(ON_ITEM_SELECT);this._initResizeEvent();},_initTextInput:function(){var instance=this;this.textInput.setAttribute("autocomplete", "off");Event.on(this.textInput,"focus",function(){instance.start();});Event.on(this.textInput,"blur",function(){instance.stop();instance.hide();});if(this.config.autoFocus)this.textInput.focus();var pressingCount=0;Event.on(this.textInput,"keydown",function(ev){var keyCode=ev.charCode||ev.keyCode;switch(keyCode){case 27:instance.hide();instance.textInput.value=instance.query;break;case 13:if(instance._onKeyboardSelecting){if(instance.textInput.value==instance._getSelectedItemKey()){instance.fireEvent(ON_ITEM_SELECT,instance.textInput.value);}}break;case 40:case 38:if(pressingCount++==0){if(instance._isRunning)instance.stop();instance._onKeyboardSelecting=true;instance.selectItem(keyCode==40);}else if(pressingCount==3){pressingCount=0;}break;}if(keyCode!=40&&keyCode!=38){if(!instance._isRunning){instance.start();}instance._onKeyboardSelecting=false;}});Event.on(this.textInput,"keyup",function(){pressingCount=0;});},_initContainer:function(){var container=document.createElement("div");container.className=this.config.containerClassName;container.style.position="absolute";container.style.visibility="hidden";this.container=container;this._setContainerRegion();this._initContainerEvent();document.body.insertBefore(container,document.body.firstChild);},_setContainerRegion:function(){var r=Dom.getRegion(this.textInput);var left=r.left,w=r.right-left-2;var docMode=document.documentMode;if(docMode===7&&(ie===7||ie===8)){left-=2;}else if(YAHOO.env.ua.gecko){left++;}this.container.style.left=left+"px";this.container.style.top=r.bottom+"px";if(this.config.containerWidth=="auto"){this.container.style.width=w+"px";}else{this.container.style.width=this.config.containerWidth;}},_initContainerEvent:function(){var instance=this;Event.on(this.container,"mousemove",function(ev){var target=Event.getTarget(ev);if(target.nodeName!="LI"){target=Dom.getAncestorByTagName(target,"li");}if(Dom.isAncestor(instance.container,target)){if(target!=instance.selectedItem){instance._removeSelectedItem();instance._setSelectedItem(target);}}});var mouseDownItem=null;this.container.onmousedown=function(e){e=e||window.event;mouseDownItem=e.target||e.srcElement;instance.textInput.onbeforedeactivate=function(){window.event.returnValue=false;instance.textInput.onbeforedeactivate=null;};return false;};Event.on(this.container,"mouseup",function(ev){if(!instance._isInContainer(Event.getXY(ev)))return;var target=Event.getTarget(ev);if(target!=mouseDownItem)return;if(target.className==instance.config.closeBtnClassName){instance.hide();return;}if(target.nodeName!="LI"){target=Dom.getAncestorByTagName(target, "li");}if(Dom.isAncestor(instance.container,target)){instance._updateInputFromSelectItem(target);instance.fireEvent(ON_ITEM_SELECT,instance.textInput.value);instance._submitForm();}});},_submitForm:function(){if(this.config.submitFormOnClickSelect){var form=this.textInput.form;if(!form)return;if(document.createEvent){var evObj=document.createEvent("MouseEvents");evObj.initEvent("submit",true,false);form.dispatchEvent(evObj);}else if(document.createEventObject){form.fireEvent("onsubmit");}form.submit();}},_isInContainer:function(p){var r=Dom.getRegion(this.container);return p[0]>=r.left&&p[0]<=r.right&&p[1]>=r.top&&p[1]<=r.bottom;},_initShim:function(){var iframe=document.createElement("iframe");iframe.src="about:blank";iframe.className=this.config.shimClassName;iframe.style.position="absolute";iframe.style.visibility="hidden";iframe.style.border="none";this.container.shim=iframe;this._setShimRegion();document.body.insertBefore(iframe,document.body.firstChild);},_setShimRegion:function(){var container=this.container,shim=container.shim;if(shim){shim.style.left=(parseInt(container.style.left)-2)+"px";shim.style.top=container.style.top;shim.style.width=(parseInt(container.style.width)+2)+"px";}},_initStyle:function(){var styleEl=Dom.get(STYLE_ID);if(styleEl)return;var style=".suggest-container{background:white;border:1px solid #999;z-index:99999}";style+=".suggest-shim{z-index:99998}";style+=".suggest-container li{color:#404040;padding:1px 0 2px;font-size:12px;line-height:18px;float:left;width:100%}";style+=".suggest-container li.selected{background-color:#39F;cursor:default}";style+=".suggest-key{float:left;text-align:left;padding-left:5px}";style+=".suggest-result{float:right;text-align:right;padding-right:5px;color:green}";style+=".suggest-container li.selected span{color:#FFF;cursor:default}";style+=".suggest-bottom{padding:0 5px 5px}";style+=".suggest-close-btn{float:right}";style+=".suggest-container li,.suggest-bottom{overflow:hidden;zoom:1;clear:both}";style+=".suggest-container{*margin-left:2px;_margin-left:-2px;_margin-top:-3px}";styleEl=document.createElement("style");styleEl.id=STYLE_ID;styleEl.type="text/css";head.appendChild(styleEl);if(styleEl.styleSheet){styleEl.styleSheet.cssText=style;}else{styleEl.appendChild(document.createTextNode(style));}},_initResizeEvent:function(){var instance=this,resizeTimer;Event.on(window,"resize",function(){if(resizeTimer){clearTimeout(resizeTimer);}resizeTimer=setTimeout(function(){instance._setContainerRegion();instance._setShimRegion();},50);});},start:function(){NS.Suggest.focusInstance=this;var instance=this;instance._timer=setTimeout(function(){instance.updateData();instance._timer=setTimeout(arguments.callee,instance.config.timerDelay);},instance.config.timerDelay);this._isRunning=true;},stop:function(){NS.Suggest.focusInstance=null;clearTimeout(this._timer);this._isRunning=false;},show:function(){if(this.isVisible())return;var container=this.container,shim=container.shim;container.style.visibility="";if(shim){if(!shim.style.height){var r=Dom.getRegion(container);shim.style.height=(r.bottom-r.top-2)+"px";}shim.style.visibility="";}},hide:function(){if(!this.isVisible())return;var container=this.container,shim=container.shim;if(shim)shim.style.visibility="hidden";container.style.visibility="hidden";},isVisible:function(){return this.container.style.visibility!="hidden";},updateData:function(){if(!this._needUpdate()) return;this._updateQueryValueFromInput();var q=this.query;if(!Lang.trim(q).length){this._fillContainer("");this.hide();return;}if(typeof this._dataCache[q]!="undefined"){this.returnedData="using cache";this._fillContainer(this._dataCache[q]);this._displayContainer();}else if(this.JSONDataSource){this.handleResponse(this.JSONDataSource[q]);}else{this.requestData();}},_needUpdate:function(){return this.textInput.value!=this.query;},requestData:function(){if(!ie)this.dataScript=null;if(!this.dataScript){var script=document.createElement("script");script.type="text/javascript";script.charset="utf-8";head.insertBefore(script,head.firstChild);this.dataScript=script;if (!ie){var t=new Date().getTime();this._latestScriptTime=t;script.setAttribute("time",t);Event.on(script,"load",function(){this._scriptDataIsOut=script.getAttribute("time")!=this._latestScriptTime;},this,true);}}this.queryParams="q="+encodeURIComponent(this.query)+"&code=utf-8&callback="+CALLBACK_STR;this.fireEvent(BEFORE_DATA_REQUEST,this.query);this.dataScript.src=this.dataSource+"?"+this.queryParams;},handleResponse:function(data){if(this._scriptDataIsOut)return;this.returnedData=data;this.fireEvent(ON_DATA_RETURN,data);this.returnedData=this.formatData(this.returnedData);var content="";var len=this.returnedData.length;if(len>0){var list=document.createElement("ol");for(var i=0;i<len;++i){var itemData=this.returnedData[i];var li=this.formatItem(itemData["key"],itemData["result"]);li.setAttribute("key",itemData["key"]);list.appendChild(li);}content =list;}this._fillContainer(content);if(len>0)this.appendBottom();if(Lang.trim(this.container.innerHTML)){this.fireEvent(BEFORE_SHOW, this.container);}this._dataCache[this.query]=this.container.innerHTML;this._displayContainer();},formatData:function(data){var arr=[];if(!data)return arr;if(Lang.isArray(data["result"]))data=data["result"];var len=data.length;if(!len)return arr;var item;for(var i=0;i<len;++i){item=data[i];if(Lang.isString(item)){arr[i]={"key":item};}else if(Lang.isArray(item)&&item.length>=2){arr[i]={"key":item[0],"result":item[1]};}else{arr[i]=item;}}return arr;},formatItem:function(key,result){var li=document.createElement("li");var keyEl=document.createElement("span");keyEl.className=this.config.keyElClassName;keyEl.appendChild(document.createTextNode(key));li.appendChild(keyEl);if(typeof result!="undefined"){var resultText=this.config.resultFormat.replace("%result%", result);if(Lang.trim(resultText)){var resultEl=document.createElement("span");resultEl.className=this.config.resultElClassName;resultEl.appendChild(document.createTextNode(resultText));li.appendChild(resultEl);}}return li;},appendBottom:function(){var bottom=document.createElement("div");bottom.className=this.config.bottomClassName;if(this.config.showCloseBtn){var closeBtn=document.createElement("a");closeBtn.href="javascript:void(0)";closeBtn.setAttribute("target","_self");closeBtn.className=this.config.closeBtnClassName;closeBtn.appendChild(document.createTextNode(this.config.closeBtnText));bottom.appendChild(closeBtn);}if(Lang.trim(bottom.innerHTML)){this.container.appendChild(bottom);}},_fillContainer:function(content){if(content.nodeType==1){this.container.innerHTML="";this.container.appendChild(content);}else{this.container.innerHTML=content;}this.selectedItem=null;},_displayContainer:function(){if(Lang.trim(this.container.innerHTML)){this.show();}else{this.hide();}},selectItem:function(down){var items=this.container.getElementsByTagName("li");if(items.length==0)return;if(!this.isVisible()){this.show();return;}var newSelectedItem;if(!this.selectedItem){newSelectedItem=items[down?0:items.length-1];}else{newSelectedItem=Dom[down?"getNextSibling":"getPreviousSibling"](this.selectedItem);if(!newSelectedItem){this.textInput.value=this.query;}}this._removeSelectedItem();if(newSelectedItem){this._setSelectedItem(newSelectedItem);this._updateInputFromSelectItem();}}, _removeSelectedItem:function(){Dom.removeClass(this.selectedItem,this.config.selectedItemClassName);this.selectedItem=null;},_setSelectedItem:function(item){Dom.addClass((item),this.config.selectedItemClassName);this.selectedItem=(item);},_getSelectedItemKey:function(){if(!this.selectedItem)return "";return this.selectedItem.getAttribute("key");},_updateQueryValueFromInput:function(){this.query=this.textInput.value;},_updateInputFromSelectItem:function(){this.textInput.value=this._getSelectedItemKey(this.selectedItem);}};Lang.augmentProto(NS.Suggest,Y.EventProvider);NS.Suggest.focusInstance=null;NS.Suggest.callback=function(data){if(!NS.Suggest.focusInstance)return;setTimeout(function(){NS.Suggest.focusInstance.handleResponse(data);},0);};})(KISSY);