输入框自动填充效果 js
??? }
??? var Bind = function(object, fun) {
??????? return function() {
??????????? return fun.apply(object, arguments);
??????? }
??? }
??? function AutoComplete(obj,autoObj,arr){
??????? this.obj=$(obj);??????? //输入框
??????? this.autoObj=$(autoObj);//DIV的根节点
??????? this.value_arr=arr;??????? //不要包含重复值
??????? this.index=-1;????????? //当前选中的DIV的索引
??????? this.search_value="";?? //保存当前搜索的字符
??? }
??? AutoComplete.prototype={
??????? //初始化DIV的位置
??????? init: function(){
??????????? this.autoObj.style.left = this.obj.offsetLeft + "px";
??????????? this.autoObj.style.top? = this.obj.offsetTop + this.obj.offsetHeight + "px";
??????????? this.autoObj.style.width= this.obj.offsetWidth - 2 + "px";//减去边框的长度2px??
??????? },
??????? //删除自动完成需要的所有DIV
??????? deleteDIV: function(){
??????????? while(this.autoObj.hasChildNodes()){
??????????????? this.autoObj.removeChild(this.autoObj.firstChild);
??????????? }
??????????? this.autoObj.className="auto_hidden";
??????? },
??????? //设置值
??????? setValue: function(_this){
??????????? return function(){
??????????????? _this.obj.value=this.seq;
??????????????? _this.autoObj.className="auto_hidden";
??????????? }??????
??????? },
??????? //模拟鼠标移动至DIV时，DIV高亮
??????? autoOnmouseover: function(_this,_div_index){
??????????? return function(){
??????????????? _this.index=_div_index;
??????????????? var length = _this.autoObj.children.length;
??????????????? for(var j=0;j<length;j++){
??????????????????? if(j!=_this.index ){??????
??????????????????????? _this.autoObj.childNodes[j].className='auto_onmouseout';
??????????????????? }else{
??????????????????????? _this.autoObj.childNodes[j].className='auto_onmouseover';
??????????????????? }
??????????????? }
??????????? }
??????? },
??????? //更改classname
??????? changeClassname: function(length){
??????????? for(var i=0;i<length;i++){
??????????????? if(i!=this.index ){??????
??????????????????? this.autoObj.childNodes[i].className='auto_onmouseout';
??????????????? }else{
??????????????????? this.autoObj.childNodes[i].className='auto_onmouseover';
??????????????????? this.obj.value=this.autoObj.childNodes[i].seq;
??????????????? }
??????????? }
??????? }
??????? ,
??????? //响应键盘
??????? pressKey: function(event){
??????????? var length = this.autoObj.children.length;
??????????? //光标键"↓"
??????????? if(event.keyCode==40){
??????????????? ++this.index;
??????????????? if(this.index>length){
??????????????????? this.index=0;
??????????????? }else if(this.index==length){
??????????????????? this.obj.value=this.search_value;
??????????????? }
??????????????? this.changeClassname(length);
??????????? }
??????????? //光标键"↑"
??????????? else if(event.keyCode==38){
??????????????? this.index--;
??????????????? if(this.index<-1){
??????????????????? this.index=length - 1;
??????????????? }else if(this.index==-1){
??????????????????? this.obj.value=this.search_value;
??????????????? }
??????????????? this.changeClassname(length);
??????????? }
??????????? //回车键
??????????? else if(event.keyCode==13){
??????????????? this.autoObj.className="auto_hidden";
??????????????? this.index=-1;
??????????? }else{
??????????????? this.index=-1;
??????????? }
??????? },
??????? //程序入口
??????? start: function(event){
??????????? if(event.keyCode!=13&&event.keyCode!=38&&event.keyCode!=40){
??????????????? this.init();
??????????????? this.deleteDIV();
??????????????? this.search_value=this.obj.value;
??????????????? var valueArr=this.value_arr;
??????????????? valueArr.sort();
??????????????? if(this.obj.value.replace(/(^\s*)|(\s*$)/g,'')==""){ return; }//值为空，退出
??????????????? try{ var reg = new RegExp("(" + this.obj.value + ")","i");}
??????????????? catch (e){ return; }
??????????????? var div_index=0;//记录创建的DIV的索引
??????????????? for(var i=0;i<valueArr.length;i++){
??????????????????? if(reg.test(valueArr[i])){
??????????????????????? var div = document.createElement("div");
??????????????????????? div.className="auto_onmouseout";
??????????????????????? div.seq=valueArr[i];
??????????????????????? div.onclick=this.setValue(this);
??????????????????????? div.onmouseover=this.autoOnmouseover(this,div_index);
??????????????????????? div.innerHTML=valueArr[i].replace(reg,"<strong>$1</strong>");//搜索到的字符粗体显示
??????????????????????? this.autoObj.appendChild(div);
??????????????????????? this.autoObj.className="auto_show";
??????????????????????? div_index++;
??????????????????? }
??????????????? }
??????????? }
??????????? this.pressKey(event);
??????????? window.onresize=Bind(this,function(){this.init();});
??????? }
??? }
??? //-->
??? </SCRIPT>
??? <body>
??? <h1 align="center">自动完成函数(Autocomplete Function)</h1>
??????? <div align="center"><input type="text" style="width:300px;height:20px;font-size:14pt;" id="o" onkeyup="autoComplete.start(event)"></div>
??????? <div id="auto"><!--自动完成 DIV--></div>
??? <script>
??????? var autoComplete=new AutoComplete('o','auto',['b0','b12','b22','b3','b4','b5','b6','b7','b8','b2','abd','ab','acd','accd','b1','cd','ccd','cbcv','cxf']);
??? </SCRIPT>
??? </body>
??? </html>
