(function($){
$.fn.mailAutoComplete=function(options){
vardefaults={
boxClass:"mailListBox",//外部box样式
listClass:"mailListDefault",//默认的列表样式
focusClass:"mailListFocus",//列表选样式中
markCalss:"mailListHlignt",//高亮样式
zIndex:1,
autoClass:true,//是否使用插件自带class样式
mailArr:
["qq.com","gmail.com","126.com","163.com","hotmail.com","yahoo.com","yahoo.com.cn","live.c
om","sohu.com","sina.com"],//邮件数组
textHint:false,//文字提示的自动显示与隐藏
hintText:"",
focusColor:"#333",
blurColor:"#999"
};
varsettings=$.extend({},defaults,options||{});
//页面装载CSS样式
if(settings.autoClass&&$("#mailListAppendCss").size()===0){
$('<styleid="mailListAppendCss"type="text/css">.mailListBox
{border:1pxsolid#369;background:#fff;font:12px/20pxArial;}.mailListDefault{padding:0
5px;cursor:pointer;white-space:nowrap;}.mailListFocus{padding:05px;cursor:pointer;white-
space:nowrap;background:#369;color:white;}.mailListHlignt{color:red;}.mailListFocus
.mailListHlignt{color:#fff;}</style>').appendTo($("head"));
}
varcb=settings.boxClass,cl=settings.listClass,cf=
settings.focusClass,cm=settings.markCalss;//插件的class变量
varz=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
$.createHtml=function(str,arr,cur){
varmailHtml="";
if($.isArray(arr)){
$.each(arr,function(i,n){
if(i===cur){
mailHtml+='<divclass="mailHover'+cf+'"
id="mailList_'+i+'"><spanclass="'+cm+'">'+str+'</span>@'+arr[i]+'</div>';
}else{
mailHtml+='<divclass="mailHover'+cl+'"
id="mailList_'+i+'"><spanclass="'+cm+'">'+str+'</span>@'+arr[i]+'</div>';
}
});
}
returnmailHtml;
};
//一些全局变量
varindex=-1,s;
$(this).each(function(){
varthat=$(this),i=$(".justForJs").size();
if(i>0){//只绑定一个文本框
return;
}
varw=that.outerWidth(),h=that.outerHeight();//获取当前对象(即文
本框)的宽高
//样式的初始化
that.wrap('<spanstyle="display:inline-
block;position:relative;"></span>')
.before('<divid="mailListBox_'+i+'"class="justForJs'+cb+'"
style="min-width:'+w+'px;_width:'+w+'px;position:absolute;left:-6000px;top:'+h+'px;z-
index:'+z+';"></div>');
varx=$("#mailListBox_"+i),liveValue;//列表框对象
that.focus(function(){
//父标签的层级
$(this).css("color",fc).parent().css("z-index",z);
//提示文字的显示与隐藏
if(hint&&text){
varfocus_v=$.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--;
}elseif(e.keyCode===40){
//向下
if(index>=newArr.length-1){
index=-1;
}
index++;
}elseif(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
varsite=v.replace(/.*@/,"");
newArr=$.map(mailArr,function(n){
varreg=newRegExp(site);
if(reg.test(n)){
returnn;
}
});
}else{
newArr=mailArr;
}
}
x.html($.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){
varblur_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);
转载于:https://www.cnblogs.com/cxx8023/archive/2012/07/25/2608065.html