复制代码 代码如下:

(function($){
$.fn.mailAutoComplete = function(options){
var defaults = {
boxClass: \"mailListBox\", //外部box样式
listClass: \"mailListDefault\", //默认的列表样式
focusClass: \"mailListFocus\", //列表选样式中
markCalss: \"mailListHlignt\", //高亮样式
zIndex: 1,
autoClass: true, //是否使用插件自带class样式
mailArr: [\"qq.com\",\"gmail.com\",\"126.com\",\"163.com\",\"hotmail.com\",\"yahoo.com\",\"yahoo.com.cn\",\"live.com\",\"sohu.com\",\"sina.com\"], //邮件数组
textHint: false, //文字提示的自动显示与隐藏
hintText: \"\",
focusColor: \"#333\",
blurColor: \"#999\"
};
var settings = $.extend({}, defaults, options || {});

//页面装载CSS样式
if(settings.autoClass && $(\"#mailListAppendCss\").size() === 0){
$(\'<style id=\"mailListAppendCss\" type=\"text/css\">.mailListBox{border:1px solid #369; background:#fff; font:12px/20px Arial;}.mailListDefault{padding:0 5px;cursor:pointer;white-space:nowrap;}.mailListFocus{padding:0 5px;cursor:pointer;white-space:nowrap;background:#369;color:white;}.mailListHlignt{color:red;}.mailListFocus .mailListHlignt{color:#fff;}</style>\').appendTo($(\"head\"));
}
var cb = settings.boxClass, cl = settings.listClass, cf = settings.focusClass, cm = settings.markCalss; //插件的class变量
var z = settings.zIndex, newArr = mailArr = settings.mailArr, hint = settings.textHint, text = settings.hintText, fc = settings.focusColor, bc = settings.blurColor;
//创建邮件内部列表内容
$.createHtml = function(str, arr, cur){
var mailHtml = \"\";
if($.isArray(arr)){
$.each(arr, function(i, n){
if(i === cur){
mailHtml += \'<div class=\"mailHover \'+cf+\'\" id=\"mailList_\'+i+\'\"><span class=\"\'+cm+\'\">\'+str+\'</span>@\'+arr[i]+\'</div>\';
}else{
mailHtml += \'<div class=\"mailHover \'+cl+\'\" id=\"mailList_\'+i+\'\"><span class=\"\'+cm+\'\">\'+str+\'</span>@\'+arr[i]+\'</div>\';
}
});
}
return mailHtml;
};
//一些全局变量
var index = -1, s;
$(this).each(function(){
var that = $(this), i = $(\".justForJs\").size();
if(i > 0){ //只绑定一个文本框
return;
}
var w = that.outerWidth(), h = that.outerHeight(); //获取当前对象（即文本框）的宽高
//样式的初始化
that.wrap(\'<span style=\"display:inline-block;position:relative;\"></span>\')
.before(\'<div id=\"mailListBox_\'+i+\'\" class=\"justForJs \'+cb+\'\" style=\"min-width:\'+w+\'px;_width:\'+w+\'px;position:absolute;left:-6000px;top:\'+h+\'px;z-index:\'+z+\';\"></div>\');
var x = $(\"#mailListBox_\" + i), liveValue; //列表框对象
that.focus(function(){
//父标签的层级
$(this).css(\"color\", fc).parent().css(\"z-index\", z);
//提示文字的显示与隐藏
if(hint && text){
var focus_v = $.trim($(this).val());
if(focus_v === text){
$(this).val(\"\");
}
}
//键盘事件
$(this).keyup(function(e){
s = v = $.trim($(this).val());
if(/@/.test(v)){
s = v.replace(/@.*/, \"\");
}
if(v.length > 0){
//如果按键是上下键
if(e.keyCode === 38){
//向上
if(index <= 0){
index = newArr.length;
}
index--;
}else if(e.keyCode === 40){
//向下
if(index >= newArr.length - 1){
index = -1;
}
index++;
}else if(e.keyCode === 13){
//回车
if(index > -1 && index < newArr.length){
//如果当前有激活列表
$(this).val($(\"#mailList_\"+index).text());
}
}else{
if(/@/.test(v)){
index = -1;
//获得@后面的值
//s = v.replace(/@.*/, \"\");
//创建新匹配数组
var site = v.replace(/.*@/, \"\");
newArr = $.map(mailArr, function(n){
var reg = new RegExp(site);
if(reg.test(n)){
return n;
}
});
}else{
newArr = mailArr;
}
}
x.html($.createHtml(s, newArr, index)).css(\"left\", 0);
if(e.keyCode === 13){
//回车
if(index > -1 && index < newArr.length){
//如果当前有激活列表
x.css(\"left\", \"-6000px\");
}
}
}else{
x.css(\"left\", \"-6000px\");
}
}).blur(function(){
if(hint && text){
var blur_v = $.trim($(this).val());
if(blur_v === \"\"){
$(this).val(text);
}
}
$(this).css(\"color\", bc).unbind(\"keyup\").parent().css(\"z-index\",0);
x.css(\"left\", \"-6000px\");

});
//鼠标经过列表项事件
//鼠标经过
$(\".mailHover\").live(\"mouseover\", function(){
index = Number($(this).attr(\"id\").split(\"_\")[1]);
liveValue = $(\"#mailList_\"+index).text();
x.children(\".\" + cf).removeClass(cf).addClass(cl);
$(this).addClass(cf).removeClass(cl);
});
});

x.bind(\"mousedown\", function(){
that.val(liveValue);
});
});
};

})(jQuery);

复制代码 代码如下:

<style type=\"text/css\">
.out_box{border:1px solid #ccc; background:#fff; font:12px/20px Tahoma;}
.list_box{border-bottom:1px solid #eee; padding:0 5px; cursor:pointer;}
.focus_box{background:#f0f3f9;}
.mark_box{color:#c00;}
</style>

复制代码 代码如下:

<p>自定义class展示：<input type=\"text\" id=\"customTest\" size=\"28\" /></p>

<script src=\"js/jquery-1.6.min.js\" type=\"text/javascript\"></script>
<script src=\"js/jquery.mailAutoComplete-3.1.js\" type=\"text/javascript\"></script>
<script type=\"text/javascript\">
$(function() {
$(\"#customTest\").mailAutoComplete({
boxClass: \"out_box\", //外部box样式
listClass: \"list_box\", //默认的列表样式
focusClass: \"focus_box\", //列表选样式中
markCalss: \"mark_box\", //高亮样式
autoClass: false,
textHint: true, //提示文字自动隐藏
hintText: \"请输入邮箱地址\"
});
})
</script>