效果
css
.star ul,
.star li {
list-style: none;
}
.star {
position: relative;
width: 600px;
height: 24px;
margin: 20px auto 0;
}
.star span {
float: left;
height: 19px;
line-height: 19px;
}
.star ul {
margin: 0 10px;
}
.star li {
float: left;
width: 24px;
height: 22px;
text-indent: -9999px;
background: url('../img/star.png') no-repeat;
cursor: pointer;
}
.star li.on {
background-position: 0 -28px;
}
.star p {
padding: 10px 10px 0;
position: absolute;
top: 20px;
width: 159px;
height: 60px;
z-index: 100;
}
.star p em {
color: #FF6600;
display: block;
font-style: normal;
}
.star strong {
color: #ff6600;
padding-left: 10px;
}
.hidden {
display: none;
}
html
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title>jQuery实现五星级评分</title>
<link rel="stylesheet" href="./css/score.css">
<script type="text/javascript" src="./js/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="./js/score.js"></script>
</head>
<body>
<div class="star" id="goods">
<span>商品</span>
<input type="hidden" class="value-container" name="goods" value="">
<ul>
<li><a href="javascript:;">1</a></li>
<li><a href="javascript:;">2</a></li>
<li><a href="javascript:;">3</a></li>
<li><a href="javascript:;">4</a></li>
<li><a href="javascript:;">5</a></li>
</ul>
</div>
<div class="star" id="logistics">
<span>物流</span>
<input type="hidden" class="value-container" name="logistics" value="">
<ul>
<li><a href="javascript:;">1</a></li>
<li><a href="javascript:;">2</a></li>
<li><a href="javascript:;">3</a></li>
<li><a href="javascript:;">4</a></li>
<li><a href="javascript:;">5</a></li>
</ul>
</div>
<script type="text/javascript">
$(function() {
var goods_score = new Score({selector:'#goods.star'});
var logistics_score = new Score({selector:'#logistics.star'});
});
</script>
</body>
</html>
js
function Score(options) { // 定义一个类
this.config = {
selector: '.star', // 评分容器
renderCallback: null, // 渲染页面后回调
callback: null // 点击评分回调
};
this.cache = {
iStar: 0,
iScore: 0
};
this.init(options); // 构造函数
}
Score.prototype = {
constructor: Score,
init: function(options) {
this.config = $.extend(this.config, options || {});
var self = this,
_config = self.config,
_cache = self.cache;
self._renderHTML();
},
_renderHTML: function() {
var self = this,
_config = self.config;
var html = '<span class="desc"></span>' +
'<p class="star-p hidden"></p>';
$(_config.selector).each(function(index, item) {
$(item).append(html);
$(item).wrap($('<div class="parentCls" style="position:relative"></div>'));
var parentCls = $(item).closest('.parentCls');
self._bindEnv(parentCls); // 方法层层相扣
_config.renderCallback && $.isFunction(_config.renderCallback) && _config.renderCallback();
});
},
_bindEnv: function(parentCls) {
var self = this,
_config = self.config,
_cache = self.cache;
$(_config.selector + ' li', parentCls).each(function(index, item) {
// 鼠标移上
$(item).mouseover(function(e) {
var offsetLeft = $('ul', parentCls)[0].offsetLeft;
ismax(index + 1);
$('p', parentCls).hasClass('hidden') && $('p', parentCls).removeClass('hidden');
$('p', parentCls).css({
'left': index * $(this).width() + 12 + 'px'
});
});
// 鼠标移出
$(item).mouseout(function() {
ismax();
!$('p', parentCls).hasClass('hidden') && $('p', parentCls).addClass('hidden');
});
// 鼠标点击
$(item).click(function(e) {
var index = $(_config.selector + ' li', parentCls).index($(this));
_cache.iStar = index + 1;
var score = index + 1;
!$('p', parentCls).hasClass('hidden') && $('p', parentCls).addClass('hidden');
var html = '<strong>' +
score +
'分</strong>';
$('.desc', parentCls).html(html);
// 加入分数
$(this).parents(_config.selector).find('.value-container').val(score);
// $(_config.selector).find('.value-container').val(score);
_config.callback && $.isFunction(_config.callback) && _config.callback({
starAmount: _cache.iStar
}); // 回调函数
});
});
function ismax(iArg) {
_cache.iScore = iArg || _cache.iStar;
var lis = $(_config.selector + ' li', parentCls);
for (var i = 0; i < lis.length; i++) {
lis[i].className = i < _cache.iScore ? "on" : "";
}
}
}
};
这里有两种方式
1.针对所有的.star的
2.针对具体的.star的
$(function() {
//var score = new Score(); // 不传参数，默认是.star
var goods_score = new Score({selector:'#goods.star'}); // 传参数，只针对id为goods的.star
var logistics_score = new Score({selector:'#logistics.star'});
});