1.邮件地址的匹配，原插件的实现是只要包含即可匹配，如输入im0417@s，那么会列出sina.com、sohu.com、chinaksp.net，现在我更改为匹配@s，这样匹配结果中就去掉了chinaksp.net的选项，只列出sina.com、sohu.com。
(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", "126.com", "163.com", "hotmail.com", "yahoo.com", "yahoo.com.cn", "live.com", "sohu.com", "sina.com", "chinavalue.net", "chinaksp.net"], //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); //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");
}
if (newArr.length == 0) { 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
var liveValue;
$(".mailHover").live("mouseover", function () {
index = Number($(this).attr("id").split("_")[1]);
x.html($.createHtml(s, newArr, index));
liveValue = $("#mailList_" + index).text();
});
x.bind("mousedown", function () {
that.val(liveValue);
});
});
});
}
})(jQuery);
<!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>
<style type="text/css">
body { font-size:14px;}
.out_box
{
font-family:宋体,Verdana;
border: 1px solid #ccc;
background: #fff;
font: 12px;
color:#666;
}
.list_box
{
line-height:22px;
cursor: pointer;
padding:0 5px;
}
.focus_box
{
line-height:22px;
cursor: pointer;
background: #69C;
color:#FFF;
padding:0 5px;
}
.mark_box
{
font-weight:bold;
}
</style>
<script src="http://lib.sinaapp.com/js/jquery/1.3.2/jquery.min.js" type="text/javascript"></script>
<script src="jquery.mailAutoComplete-3.1.js" type="text/javascript"></script>
</head>
<body>
<p>
演示：<input type="text" id="customTest" style="color: #999;" size="28" value="请输入邮箱地址" /></p>
<script type="text/javascript">
$("#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>
</body>
</html>
