【发布时间】：2010-12-04 02:46:07
【问题描述】：
我正在尝试建立一个星级评分系统。我现在拥有的代码执行以下操作：
当鼠标悬停在星星上时突出显示星星，但在鼠标移开时恢复到以前的状态。
我想为其添加以下功能： 当我点击一颗星星时，即使将鼠标从星星上移开，我点击的星星数量也应该保持突出显示。
谁能帮我解决这个问题？
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd"
>
<html lang="en">
<head>
<title>AJAX 5 Star Rating</title>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
// This is the first thing we add ------------------------------------------
$(document).ready(function() {
$('.rate_widget').each(function(i) {
var widget = this;
var out_data = {
widget_id : $(widget).attr('id'),
fetch: 1
};
$.post(
'ratings.php',
out_data,
function(INFO) {
$(widget).data( 'fsr', INFO );
set_votes(widget);
},
'json'
);
});
$('.ratings_stars').hover(
// Handles the mouseover
function() {
$(this).prevAll().andSelf().addClass('ratings_over');
$(this).nextAll().removeClass('ratings_vote');
},
// Handles the mouseout
function() {
$(this).prevAll().andSelf().removeClass('ratings_over');
// can't use 'this' because it wont contain the updated data
set_votes($(this).parent());
}
);
// This actually records the vote
$('.ratings_stars').bind('click', function() {
var star = this;
var widget = $(this).parent();
var clicked_data = {
clicked_on : $(star).attr('class'),
widget_id : $(star).parent().attr('id')
};
$.post(
'ratings.php',
clicked_data,
function(INFO) {
widget.data( 'fsr', INFO );
set_votes(widget);
},
'json'
);
});
});
function set_votes(widget) {
var avg = $(widget).data('fsr').whole_avg;
var votes = $(widget).data('fsr').number_votes;
var exact = $(widget).data('fsr').dec_avg;
window.console && console.log('and now in set_votes, it thinks the fsr is ' + $(widget).data('fsr').number_votes);
$(widget).find('.star_' + avg).prevAll().andSelf().addClass('ratings_vote');
$(widget).find('.star_' + avg).nextAll().removeClass('ratings_vote');
$(widget).find('.total_votes').text( votes + ' votes recorded (' + exact + ' rating)' );
}
// END FIRST THING
</script>
<style>
.rate_widget {
border: 1px solid #CCC;
overflow: visible;
padding: 10px;
position: relative;
width: 180px;
height: 32px;
}
.ratings_stars {
background: url('star_empty.png') no-repeat;
float: left;
height: 28px;
padding: 2px;
width: 32px;
}
.ratings_vote {
background: url('star_full.png') no-repeat;
}
.ratings_over {
background: url('star_highlight.png') no-repeat;
}
.total_votes {
background: #eaeaea;
top: 58px;
left: 0;
padding: 5px;
position: absolute;
}
.event_choice {
font: 10px verdana, sans-serif;
margin: 0 auto 40px auto;
width: 180px;
}
h1 {
text-align: center;
width: 400px;
margin: 20px auto;
}
</style>
</head>
<body>
<h1> Rate the event! </h1>
<div class='event_choice'>
Rate: Raiders of the Lost Ark
<div id="r1" class="rate_widget">
<div class="star_1 ratings_stars"></div>
<div class="star_2 ratings_stars"></div>
<div class="star_3 ratings_stars"></div>
<div class="star_4 ratings_stars"></div>
<div class="star_5 ratings_stars"></div>
<div class="total_votes">vote data</div>
</div>
</div>
<div class='event_choice'>
Rate: The Hunt for Red October
<div id="r2" class="rate_widget">
<div class="star_1 ratings_stars"></div>
<div class="star_2 ratings_stars"></div>
<div class="star_3 ratings_stars"></div>
<div class="star_4 ratings_stars"></div>
<div class="star_5 ratings_stars"></div>
<div class="total_votes">vote data</div>
</div>
</div>
</body>
</html>
【问题讨论】：
-
我建议在
click()例程中以与悬停相同的方式在视觉上设置评级，然后解除悬停例程的绑定。 -
我不得不承认我是一个 Jquery 的新手。我直觉地觉得我必须在 // Handles the mouseout function() { $(this).prevAll().andSelf().removeClass('ratings_over'); // 不能使用 'this' 因为它不包含
-
您能建议我对代码进行哪些确切更改吗？
-
设置这个小提琴来测试：jsfiddle.net/sje397/YzXSd