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怎么样通过jQuery实现Email邮箱地址自动补全功能代码?

2016-03-06 08:22:21 来源:www.45fan.com 【

怎么样通过jQuery实现Email邮箱地址自动补全功能代码?

本文实例讲述了jQuery实现Email邮箱地址自动补全功能代码。分享给大家供大家参考,具体如下:

jQuery Email邮箱地址自动补全代码,输入Email时,会自动加入@符号,在输入框中输入“qq”、“Sina”、“163”等等可以看到效果;鼠标经过提示Email时,高亮该条Email,鼠标点击Email时,文本框内容替换成该条Email,并删除提示层.

运行效果截图如下:

怎么样通过jQuery实现Email邮箱地址自动补全功能代码?

在线演示地址如下:

http://demo.jb51.net/js/2015/jquery-email-auto-comp-codes/

具体代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>输入Email相关字符自动提示Email地址</title>
<script src="jquery-1.6.2.min.js" type="text/javascript"></script>
<style type="text/css">
body
{
 margin:0px;
 padding:0px;
 font-family:Arial;
 font-size:12px;
 padding:10px;
}
#myemail, .newemail, .newemailtitle{ 
 cursor:default;
 line-height:18px;
}
</style>
</head>
<body>
Email <input id="me" type="text" value="" style="width:150px; height:18px; line-height:18px; border:1px solid #999;">
<script type="text/javascript">
var nowid;
var totalid;
var can1press = false;
var emailafter;
var emailbefor;
$(document).ready(function(){ 
 $("#me").focus(function(){ //文本框获得焦点,插入Email提示层
 $("#myemail").remove();
 $(this).after("<div id='myemail' style='width:170px; height:auto; background:#fff; color:#6B6B6B; position:absolute; left:"+$(this).get(0).offsetLeft+"px; top:"+($(this).get(0).offsetTop+$(this).height()+2)+"px; border:1px solid #ccc;z-index:5px; '></div>");
 if($("#myemail").html()){
 $("#myemail").css("display","block");
 $(".newemail").css("width",$("#myemail").width());
 can1press = true;
 } else {
 $("#myemail").css("display","none");
 can1press = false;
 } 
 }).keyup(function(){ //文本框输入文字时,显示Email提示层和常用Email
 var press = $("#me").val();
 if (press!="" || press!=null){
 var emailtxt = "";  
 var emailvar = new Array("@163.com","@126.com","@yahoo.com","@qq.com","@sina.com","@gmail.com","@hotmail.com","@foxmail.com");
 totalid = emailvar.length;
  var emailmy = "<div class='newemail' style='width:170px; color:#6B6B6B; overflow:hidden;'><font color='#D33022'>" + press + "</font></div>";
  if(!(isEmail(press))){
  for(var i=0; i<emailvar.length; i++) {
   emailtxt = emailtxt + "<div class='newemail' style='width:170px; color:#6B6B6B; overflow:hidden;'><font color='#D33022'>" + press + "</font>" + emailvar[i] + "</div>"
  }
  } else {
  emailbefor = press.split("@")[0];
  emailafter = "@" + press.split("@")[1];
  for(var i=0; i<emailvar.length; i++) {
   var theemail = emailvar[i];
   if(theemail.indexOf(emailafter) == 0)
   {
   emailtxt = emailtxt + "<div class='newemail' style='width:170px; color:#6B6B6B; overflow:hidden;'><font color='#D33022'>" + emailbefor + "</font>" + emailvar[i] + "</div>"
   }
  }
  }
  $("#myemail").html(emailmy+emailtxt);
  if($("#myemail").html()){
   $("#myemail").css("display","block");
   $(".newemail").css("width",$("#myemail").width());
   can1press = true;
  } else {
   $("#myemail").css("display","none");
   can1press = false;
  }
  beforepress = press;
 }
 if (press=="" || press==null){
  $("#myemail").html(""); 
  $("#myemail").css("display","none"); 
 }
 })
 $(document).click(function(){ //文本框失焦时删除层
 if(can1press){
  $("#myemail").remove();
  can1press = false;
  if($("#me").focus()){
  can1press = false;
  }
 }
 })
 $(".newemail").live("mouseover",function(){ //鼠标经过提示Email时,高亮该条Email
 $(".newemail").css("background","#FFF");
 $(this).css("background","#CACACA");
 $(this).focus();
 nowid = $(this).index();
 }).live("click",function(){ //鼠标点击Email时,文本框内容替换成该条Email,并删除提示层
 var newhtml = $(this).html();
 newhtml = newhtml.replace(/<.*?>/g,"");
 $("#me").val(newhtml);
 $("#myemail").remove();
 })
 $(document).bind("keydown",function(e)
 {
 if(can1press){
  switch(e.which) 
  {
  case 38:
  if (nowid > 0){
   $(".newemail").css("background","#FFF");
   $(".newemail").eq(nowid).prev().css("background","#CACACA").focus();
   nowid = nowid-1;
  }
  if(!nowid){
   nowid = 0;
   $(".newemail").css("background","#FFF");
   $(".newemail").eq(nowid).css("background","#CACACA"); 
   $(".newemail").eq(nowid).focus();  
  }
  break; 
  case 40:
  if (nowid < totalid){
   $(".newemail").css("background","#FFF");
   $(".newemail").eq(nowid).next().css("background","#CACACA").focus(); 
   nowid = nowid+1;
  }
  if(!nowid){
   nowid = 0;
   $(".newemail").css("background","#FFF");
   $(".newemail").eq(nowid).css("background","#CACACA"); 
   $(".newemail").eq(nowid).focus();  
  }
  break; 
  case 13:
  var newhtml = $(".newemail").eq(nowid).html();
  newhtml = newhtml.replace(/<.*?>/g,"");
  $("#me").val(newhtml); 
  $("#myemail").remove();
  }
 } 
 })
}) 
//检查email邮箱
function isEmail(str){
 if(str.indexOf("@") > 0) 
 { 
 return true;
 } else {
 return false;
 }
}
</script>
在输入框中输入“qq”、“Sina”、“163”等等可以看到效果
</body>
</html>

希望本文所述对大家jQuery程序设计有所帮助。


本文地址:http://www.45fan.com/bcdm/41413.html
Tags: 实现 jquery Email
编辑:路饭网
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