jQuery邮箱自动补全代码
JScript 代码 复制
(function($){
$.fn.emailMatch= function(settings){
var defaultSettings = {
emailTip:"请输入邮箱地址",
aEmail: ["163.com", "qq.com", "gmail.com", "126.com", "hotmail.com", "yahoo.com", "yahoo.com.cn", "live.com", "sohu.com", "sina.com"], //邮件数组
wrapLayer:"body",
className:"mailListBox",
emailRemember:true,
autoCursor:false,
position:"bottom" // bottom, left , right
};
/* 合并默认参数和用户自定义参数 */
settings = settings ? $.extend(defaultSettings,settings):defaultSettings;
return this.each(function(){
var elem = $(this),t=0,l=0,
w = elem.outerWidth(),
h = elem.outerHeight(),
selectVal = sMail = inputVal = "",arrayNum = 0,
isIndex = -1;
t = elem.position().top;
l = elem.position().left;
var mailWrap = document.createElement("div");
$(mailWrap).attr({"id":elem.attr("id"),"class":settings.className})
$(settings.wrapLayer).append(mailWrap);
if($.trim(elem.val()) == ""){elem.val(settings.emailTip);};
elem.focus(function(){
arrayNum = 0;
if($.trim(elem.val()) == settings.emailTip){elem.val('');}; // 清空 输入框 提示内容
if($.trim(elem.val()) !=""){
inputVal = $.trim(elem.val());
isIndex = inputVal.indexOf("@");
if(isIndex >= 0 ){
sMail = inputVal.substr(isIndex + 1);
inputVal = inputVal.substring(0,isIndex);
if(sMail !=""){
arrayNum = parseInt(!position(settings.aEmail,sMail)?0:position(settings.aEmail,sMail));
}
}
if(settings.autoCursor){
elem.val(inputVal);
if($.browser.msie ){
setCaretAtEnd(elem.attr("id"));
}
}
showList($(mailWrap),w,h,t,l);
createMailList(mailWrap,inputVal,sMail,settings.aEmail,arrayNum);
};
}).blur(function(){
if(elem.val() == ''){
elem.val(settings.emailTip);
hideList($(mailWrap));
return false;
}; // 还原 输入框 提示内容
enterVal(mailWrap,elem);
hideList($(mailWrap));
});
elem.keyup(function(e){
var suffixArray = [], eKey = e && (e.which || e.keyCode);
//console.log(eKey);
switch(eKey){
case 9: // tab 按键
return;
break;
case 13: { // 回车
enterVal(mailWrap,elem);
hideList($(mailWrap));
}break;
case 38:{ // 方向键 上
showList($(mailWrap),w,h,t,l);
cursorMove(mailWrap,-1);
}break;
case 40: {// 方向键 下
showList($(mailWrap),w,h,t,l);
cursorMove(mailWrap,+1);
}break;
default:{
inputVal = $.trim(elem.val());
var keyIndex = inputVal.indexOf("@");
var suffix = "",suffixState = true;
if(keyIndex >= 0){
suffix = inputVal.substr(keyIndex + 1);
inputVal = inputVal.substring(0,keyIndex);
$("#t2").text("BBB" + inputVal);
if(suffix != '' && settings.emailRemember){ // 过滤数组
for (var i = 0; i < settings.aEmail.length; i++) {
if (settings.aEmail[i].indexOf(suffix) == 0) {
suffixArray.push(settings.aEmail[i]);
suffixState = false;
}
}
}
if(suffix != '' && !settings.emailRemember){ // 当前高亮 选项
for (var i = 0; i < settings.aEmail.length; i++) {
if (settings.aEmail[i].indexOf(suffix) == 0) {
arrayNum = i;
suffixState = false;
break;
}
}
}
}
suffixArray = suffixArray.length > 0 ? suffixArray:settings.aEmail;
if(inputVal=="" && suffix == ""){
hideList($(mailWrap));
arrayNum = 0;
createMailList(mailWrap,inputVal,suffix,settings.aEmail,arrayNum);
}else{
showList($(mailWrap),w,h,t,l);
createMailList(mailWrap,inputVal,suffix,suffixArray,arrayNum);
}
}
}
});
$(mailWrap).find("li:not('.first')").live('mouseover',function(){
$(this).addClass("hover").siblings().removeClass("hover");
});
$(mailWrap).find("li:not('.first')").live('mousedown',function(){
$(this).addClass("current").siblings().removeClass("current");
enterVal(mailWrap,elem);
hideList($(mailWrap));
});
$(mailWrap).bind("mouseout",function(){
$(mailWrap).find("li:not('.first')").removeClass("hover");
});
});
};
function cursorMove(o,n){
var cursorList = $(o).find("li:not('.first')"),k = new Number();
for(i=0;i<cursorList.length;i++){
if(cursorList[i].className == "current"){
k = i+n
cursorList[i].className = "";
};
}
if(k < 0) k =0;
if(k >= cursorList.length - 1 ) k = cursorList.length - 1;
cursorList[k].className = "current";
}
function setCaretAtEnd(field){ // IE 系列浏览器 在自动光标跳回文档首问题
var b = document.getElementById(field);
if (b.createTextRange){
var r = b.createTextRange();
r.moveStart('character', b.value.length);
r.collapse();
r.select();
}
}
function position(array,value){ // 取得 元素在数组中的位置
for(var i in array){
if(array[i]==value){
return i;break;
}
}
};
function enterVal(oWrap,elem){
elem.val($(oWrap).find("li.current").text()); // 获取高亮内容 到 输入框
};
function showList(oElem,w,h,t,l){ // 显示 邮箱框架 并定位.
oElem.css({"display":"block","top":h + t,"left":l,"width":w-2});
};
function hideList(oElem){ // 显示 邮箱框架
oElem.css({"display":"none"});
};
function createMailList(oWrap,sVal,suffix,aEail,nK){ // 创建 候选列表
if(nK < 0 ) {nK = 0;}
if(nK > aEail.length-1) {nK = aEail.length - 1;}
var mailList = "<li class='first'><span>请选择邮箱类型</span></li>";
var State = true; // 用户键入 后缀 是否匹配候选后缀 的状态
for(k=0; k<aEail.length;k++){
if(suffix!= '' && aEail[k].indexOf(suffix) == 0){
State = false;
}
}
nK = parseInt(suffix!= '' && State && !position(aEail,suffix)?0:nK);
if(suffix !='' && State ){
if(nK == 0){
mailList += '<li class="current"><span>'+sVal+'</span>@'+suffix+'</li>';
} else {
mailList += '<li><span>'+sVal+'</span>@'+suffix+'</li>';
}
}
if($.isArray(aEail)){
$.each(aEail, function(i){
if(State && suffix !=''){
if(i == (nK-1) ){
mailList += '<li class="current"><span>'+sVal+'</span>@'+aEail[i]+'</li>';
} else {
mailList += '<li><span>'+sVal+'</span>@'+aEail[i]+'</li>';
}
} else{
if(i == nK){
mailList += '<li class="current"><span>'+sVal+'</span>@'+aEail[i]+'</li>';
} else {
mailList += '<li><span>'+sVal+'</span>@'+aEail[i]+'</li>';
}
}
});
}
mailList = "<ul>" + mailList + "</ul>";
$(oWrap).html(mailList);
};
})(jQuery);
HTML 代码 复制
<div class="f_item">
<label class="i_label">邮箱:</label>
<input type="text" class="i_text" id="txtLoginID" name="txtLoginID" style="color: rgb(153, 153, 153);">
<div id="txtLoginIDTip">
</div>
</div>
<script>
$("#txtLoginID").emailMatch();
</script>
