jQuery Email邮箱地址自动补全代码

2020-01-27 13:43:52

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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.

<!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="http://www.codefans.net/ajaxjs/jquery-1.4.2.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>

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