jQuery 仿百度输入标签插件附效果图

1、先上效果图 2、调用方式

1、先上效果图

2、调用方式

<link href="/styles/tagsinput.css" rel="external nofollow" rel="stylesheet" type="text/css" />
<script src="/scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script src="/scripts/jquery.tagsinput.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#txttags").tagsinput({
usedtags: "css|js|jquery|html|c#|.net|web",
hottags: "hottag1|hottag2|hottag3|hottag4",
tagnum: 10,
maxwords: 10
});
});
</script>

html页面调用

<input type="text" value="逗号|分号|空格|tab|回车键" name="txttags" id="txttags" />

3、tagsinput.css样式

.clearfix:after
{
clear: both;
content: " ";
display: block;
height: 0;
}
.tags-wrapper
{
width: 500px;
position:relative;
}
#addtagwrap
{
background: none repeat scroll 0 0 #ffffff;
border: 1px solid #d9d9d9;
padding: 0 5px;
}
#addtagwrap .inner-tag-wrapper,.layer-tag-name
{
background: none repeat scroll 0 0 #40a8cd;
border-radius: 3px;
color: #ffffff;
float: left;
height: 26px;
line-height: 26px;
margin: 4px 6px 0 0;
padding: 0 5px 0 10px;
white-space: nowrap;
}
#addtagwrap .inner-tag-close
{
color: #a0d4e6;
font-family: "宋体" ,sans-serif;
margin-left: 4px;
text-decoration: none;
}
#taginput
{
background: none repeat scroll 0 0 #ffffff;
border: medium none;
margin: 0;
height: 24px;
line-height: 24px;
overflow: hidden;
padding: 5px;
width: 215px;
}
#taginput:focus{ outline:none }
.layer-tags-wrapper
{
border: 1px solid #dadada;
border-top:0;
overflow: auto;
position:absolute;
left:0;
right:0;
display:none;
background: none repeat scroll 0 0 #ffffff;
}
.layer-tags-wrapper .layer-tags-box
{
padding: 0 5px;
}
.layer-tags-wrapper .layer-tags-left
{
float: left;
text-align: center;
padding-right: 5px;
margin-top: 4px;
height: 26px;
line-height: 26px;
}
.layer-tags-wrapper .layer-tags-right
{
overflow: auto;
}
.layer-tags-wrapper .layer-tag-name
{
padding-right: 10px;
text-decoration: none;
}
.layer-tags-foot
{
height: 30px;
line-height: 30px;
color: #999999;
padding-left:5px;
}
.layer-tags-foot-top
{
margin-top:5px;
border-top:1px dotted #c9c9c9;
}
.message-box
{
background: none repeat scroll 0 0 rgba(0, 0, 0, 0.35);
color: #ffffff;
width: 300px;
min-height: 50px;
line-height: 50px;
top: 50%;
left: 50%;
margin-top: -50px; /*注意这里必须是div高度的一半*/
margin-left: -150px; /*这里是div宽度的一半*/
position: fixed !important; /*ff ie7*/
position: absolute; /*ie6*/
z-index: 999;
text-align: center;
border-radius: 5px;
}

4、jquery.tagsinput.js

/*仿百度标签输入v0.1
* @name jquery.tagsinput.js
* @version 0.1
* @author liping
* @date 2014/06/10
* @email:272323108@qq.com
*/
(function ($) {
$.fn.tagsinput = function (options) {
//默认参数
var defaults = {
usedtags: "",
hottags: "",
tagnum: 0,
maxwords: 0
};
//用传入参数覆盖了默认值
var opts = $.extend(defaults, options);
//对象
var $this = $(this);
$this.hide();
var arraytags;
var strhtml;
strhtml = "<p class=\"tags-wrapper clearfix\">";
strhtml += "<p id=\"addtagwrap\" ><p class=\"added-tags-wrapper\"></p>";
strhtml += "<input id=\"taginput\" type=\"text\" placeholder=\"添加标签，以逗号、分号或空格隔开\" autocomplete=\"off\">";
strhtml += "</p><p class=\"layer-tags-wrapper\">";
if (opts.usedtags != "") {
strhtml += "<p class=\"clearfix layer-tags-box\"><p class=\"layer-tags-left\">记忆标签</p><p class=\"layer-tags-right\">";
arraytags = opts.usedtags.split('|');
for (i = 0; i < arraytags.length; i++) {
strhtml += "<a class=\"layer-tag-name\" href=\"javascript：;\">" + arraytags[i] + "</a>";
}
strhtml += "</p></p>";
}
if (opts.hottags != "") {
strhtml += "<p class=\"clearfix layer-tags-box\"><p class=\"layer-tags-left\">热门标签</p><p class=\"layer-tags-right\">";
arraytags = opts.hottags.split('|');
for (i = 0; i < arraytags.length; i++) {
strhtml += "<a class=\"layer-tag-name\" href=\"javascript：;\">" + arraytags[i] + "</a>";
}
strhtml += "</p></p>";
}
if (opts.tagnum != 0 && opts.maxwords != 0) {
strhtml += "<p class=\"layer-tags-foot clearfix \">最多可添加" + opts.tagnum + "个标签，每个标签不超过" + opts.maxwords + "个汉字</p>";
}
else if (opts.tagnum != 0 && opts.maxwords == 0) {
strhtml += "<p class=\"layer-tags-foot clearfix \">最多可添加" + opts.tagnum + "个标签</p>";
}
else if (opts.tagnum == 0 && opts.maxwords != 0) {
strhtml += "<p class=\"layer-tags-foot clearfix \">每个标签不超过" + opts.maxwords + "个汉字</p>";
}
else {
strhtml += "<p class=\"layer-tags-foot clearfix \">标签个数最好少于10个，每个标签最好不超过10个汉字</p>";
}
strhtml += "</p></p>";
$(strhtml).insertafter($this);
if ($(".layer-tag-name").length > 0) {
$(".layer-tags-foot").addclass("layer-tags-foot-top");
}

var inputtags = $this.val();
arraytags = inputtags.split('|');
for (i = 0; i < arraytags.length; i++) {
addtag(arraytags[i]);
}
$(".layer-tag-name").each(function () {
$(this).click(function () { addtag($(this).text()); });
});

$("#taginput").keydown(function (e) {
var keycode = e.which || e.keycode;
if (keycode == 13 || keycode == 32 || keycode == 9) {
if (addtag($(this).val())) { $(this).val(""); }
return false;
}
}).keyup(function (e) {
var keycode = e.which || e.keycode;
if (keycode == 188 || keycode == 59) {
if (addtag($(this).val())) { $(this).val(""); }
return false;
}
}).click(function () {
$(".layer-tags-wrapper").show();
}).blur(function () {
if (addtag($(this).val())) { $(this).val(""); }
return false;
});

$(".tags-wrapper").mouseleave(function () {
$(".layer-tags-wrapper").hide();
});

function addtag(obj) {
obj = obj.replace(/[ |,|，|;|；]/g, "");
if (obj == "") { return false; }
//只统计汉字字数
var num = 0;
var arr = obj.match(/[^\x00-\xff]/g);
if (arr != null) {
num = arr.length;
if (opts.maxwords > 0 && num > opts.maxwords) {
messagebox("单个标签最多" + opts.maxwords + "个汉字");
return false;
}
num = 0;
}
var tags = $("#addtagwrap .inner-tag-name");
var flag = true;
var s = "";
tags.each(function () {
if ($(this).text() == obj) {
flag = false;
return false;
}
num++;
s += $(this).text() + "|";
});
if (opts.tagnum > 0 && num >= opts.tagnum) {
messagebox("最多可添加" + opts.tagnum + "个标签");
return false;
}
if (flag) {
$(".added-tags-wrapper").append("<p class=\"inner-tag-wrapper\"><span class=\"inner-tag-name\">" + obj + "</span><a class=\"inner-tag-close\" title=\"删除\" href=\"javascript：;\">×</a></p>");
$(".added-tags-wrapper .inner-tag-close:last").click(function () {
$(this).parent().remove();
});
s += obj + "|";
if (s.length > 0) {
s = s.substring(0, s.length - 1);
$this.val(s);
}
return true;
}
else {
messagebox("该标签已经存在");
return false;
}
}

function messagebox(obj) {
$("<p class=\"message-box\">" + obj + "</p>").appendto("body");
$(".message-box").delay(1000).fadeout("slow", function () {
$(this).remove();
});
}
};
})(jquery);