星级评分系统悬停

6

我正在为一个网店制作评分系统。基本上我想要的是这样的:

如果访问者之前没有进行过评分:

  • 访问者将鼠标悬停在星星上
  • 前一个和当前的星星将变成黄色,下一个星星将变成灰色(使用class实现)
  • 如果访问者离开了悬停状态,则将所有星星重置为旧状态
  • 如果访问者点击了一个星星,则保存它,计算下一个星星的值并更新数组。

我使用的是font awesome,所以不使用任何图像。现在的问题是,如果我悬停在一个星星上,它可以工作,但如果我想从一个星星移动到另一个星星,它会出现故障(因为星星之间有一点间隙,这意味着它会先重置星星)。

jsfiddle: https://jsfiddle.net/uappvz3y/

JS:

var current_star_statusses = [];

star_elements = $('.fa-star');

star_elements.each(function(i, elem)
{
    current_star_statusses.push($(elem).hasClass('yellow'));
});

star_elements.mouseenter(changeRatingStars);
star_elements.mouseleave(resetRatingStars);

/**
 * Changes the rating star colors when hovering over it.
 */
function changeRatingStars()
{
    // Current star hovered
    var star = $(this);

    // Removes all colors first from all stars
    $('.fa-star').removeClass('gray').removeClass('yellow');

    // Makes the current hovered star yellow
    star.addClass('yellow');

    // Makes the previous stars yellow and the next stars gray
    star.parent().prevAll().children('.fa-star').addClass('yellow');
    star.parent().nextAll().children('.fa-star').addClass('gray');
}

/**
 * Resets the rating star colors when not hovered anymore.
 */
function resetRatingStars()
{
    star_elements.each(function(i, elem)
    {
        $(elem).removeClass('yellow').removeClass('gray').addClass(current_star_statusses[i] ? 'yellow' : 'gray');
    });
}

HTML:

<ul class="list-inline rating-list">
    <li><i class="fa fa-star yellow"></i></li>
    <li><i class="fa fa-star yellow"></i></li>
    <li><i class="fa fa-star yellow"></i></li>
    <li><i class="fa fa-star yellow"></i></li>
    <li><i class="fa fa-star gray"></i></li>
</ul>

CSS:

.fa-star:before {
    content: "\f005";
}

.rating-list li i.yellow {
    color: #FFD700;
}

.rating-list li i.gray {
    color: #bbb;
}

.list-inline>li {
    display: inline-block;
    padding-right: 5px;
    padding-left: 5px;
}

.rating-list li {
    padding: 0px;
}
.fa {
    display: inline-block;
    font: normal normal normal 14px/1 FontAwesome;
    font-size: inherit;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transform: translate(0, 0);
}

我知道有很多库可以让它变得更容易,但如果可以的话,我想保留自己的代码。

3个回答

8

您可以使用纯CSS来制作星级评分。将星星向右浮动,并为具有填充的li应用悬停效果。

.rating-list li {
  float: right;
  color: #ddd;
  padding: 10px 5px;
}

.rating-list li:hover,
.rating-list li:hover ~ li {
  color: #ffd700;
}

.rating-list {
  display: inline-block;
  list-style: none;
}
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>

<ul class="list-inline rating-list">
  <li><i class="fa fa-star" title="Rate 5"></i></li>
  <li><i class="fa fa-star" title="Rate 4"></i></li>
  <li><i class="fa fa-star" title="Rate 3"></i></li>
  <li><i class="fa fa-star" title="Rate 2"></i></li>
  <li><i class="fa fa-star" title="Rate 1"></i></li>
</ul>


CSS + 单选按钮也可以使其功能正常,而无需使用任何JS:http://jsfiddle.net/leaverou/CGP87/ - Tieson T.

3

我修改了这4行代码。

star_elements = $('.fa-star').parent();

star_elements.find(".fa-star").each(function(i, elem) {
  current_star_statusses.push($(elem).hasClass('yellow'));
});

star_elements.find(".fa-star").mouseenter(changeRatingStars);
star_elements.find(".fa-star").mouseleave(resetRatingStars);

现在的star_elementli

如果你更喜欢使用jsfiddle,这里有一个链接

var current_star_statusses = [];

star_elements = $('.fa-star').parent();

star_elements.find(".fa-star").each(function(i, elem) {
  current_star_statusses.push($(elem).hasClass('yellow'));
});

star_elements.find(".fa-star").mouseenter(changeRatingStars);
star_elements.find(".fa-star").mouseleave(resetRatingStars);

/**
 * Changes the rating star colors when hovering over it.
 */
function changeRatingStars() {
  // Current star hovered
  var star = $(this);

  // Removes all colors first from all stars
  $('.fa-star').removeClass('gray').removeClass('yellow');

  // Makes the current hovered star yellow
  star.addClass('yellow');

  // Makes the previous stars yellow and the next stars gray
  star.parent().prevAll().children('.fa-star').addClass('yellow');
  star.parent().nextAll().children('.fa-star').addClass('gray');
}

/**
 * Resets the rating star colors when not hovered anymore.
 */
function resetRatingStars() {
  star_elements.each(function(i, elem) {
    $(elem).removeClass('yellow').removeClass('gray').addClass(current_star_statusses[i] ? 'yellow' : 'gray');
  });
}
.fa-star:before {
  content: "\f005";
}

.rating-list li i.yellow {
  color: #FFD700;
}

.rating-list li i.gray {
  color: #bbb;
}

.list-inline>li {
  display: inline-block;
  padding-right: 5px;
  padding-left: 5px;
}

.rating-list li {
  padding: 0px;
}

.fa {
  display: inline-block;
  font: normal normal normal 14px/1 FontAwesome;
  font-size: inherit;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transform: translate(0, 0);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<ul class="list-inline rating-list">
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star gray"></i></li>
</ul>


谢谢,这正是我所需要的!我会尽快接受答案。干杯! - Joshua Bakker
我很乐意帮助,祝你今天愉快。 - Carsten Løvbo Andersen

3

有一个更简单的解决方案:在.fa元素上使用填充,并对列表项使用float: left,这意味着每个星星之间将没有间隔。

这些规则足以实现您想要的效果:

.list-inline {
  list-style: none;
  padding: 0;
  margin: 0;
  overflow: hidden;
}
.list-inline > li {
  float: left;
}
.rating-list li {
  padding: 0px;
}
.rating-list li .fa {
  padding-right: 5px;
}

以下是一个概念验证示例,不需要更改您的JS代码:

$(function() {

    var current_star_statusses = [];

    star_elements = $('.fa-star');

    star_elements.each(function(i, elem) {
      current_star_statusses.push($(elem).hasClass('yellow'));
    });

    star_elements.mouseenter(changeRatingStars);
    star_elements.mouseleave(resetRatingStars);

    /**
     * Changes the rating star colors when hovering over it.
     */
    function changeRatingStars() {
      // Current star hovered
      var star = $(this);

      // Removes all colors first from all stars
      $('.fa-star').removeClass('gray').removeClass('yellow');

      // Makes the current hovered star yellow
      star.addClass('yellow');

      // Makes the previous stars yellow and the next stars gray
      star.parent().prevAll().children('.fa-star').addClass('yellow');
      star.parent().nextAll().children('.fa-star').addClass('gray');
    }

    /**
     * Resets the rating star colors when not hovered anymore.
     */
    function resetRatingStars() {
      star_elements.each(function(i, elem) {
        $(elem).removeClass('yellow').removeClass('gray').addClass(current_star_statusses[i] ? 'yellow' : 'gray');
      });
    }
 });
.fa-star:before {
  content: "\f005";
}

.rating-list li i.yellow {
  color: #FFD700;
}

.rating-list li i.gray {
  color: #bbb;
}

.list-inline {
  list-style: none;
  padding: 0;
  margin: 0;
  overflow: hidden;
}
.list-inline>li {
  float: left;
}

.rating-list li {
  padding: 0px;
}
.rating-list li .fa {
  padding-right: 5px;
}

.fa {
  display: inline-block;
  font: normal normal normal 14px/1 FontAwesome;
  font-size: inherit;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transform: translate(0, 0);
}
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="list-inline rating-list">
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star yellow"></i></li>
  <li><i class="fa fa-star gray"></i></li>
</ul>


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