阅读：hover伪类与javascript [英] Read :hover pseudo class with javascript
问题描述
我做了一个函数，覆盖了：hover的一些页面上的元素。它在正常和悬停效果之间渐变。这对我必须在我的CSS文件中创建一个.hover类。我想这有点不洁。我如何读取：hover伪类内容？
I made a function that overwrite the the :hover of some elements on a page. It fades between the normal and the :hover effect. That for i had to create a .hover class in my CSS file. I think this is a little unclean. How could i read the the :hover pseudo class contents?
推荐答案
UPDATE ：我错了。以下示例不工作。有关说明，请参见 @ bfavaretto的评论。
UPDATE: I somehow got this wrong. The below example doesn't work. See @bfavaretto's comment for an explanation.
在Firefox，Opera和Chrome或任何其他正确实现 window.getComputedStyle 非常简单。您只需要传递hover作为第二个参数：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style type="text/css">
div {
display: block;
width: 200px;
height: 200px;
background: red;
}
div:hover {
background: green;
}
</style>
</head>
<body>
<div></div>
<script type="text/javascript">
window.onload = function () {
var div = document.getElementsByTagName("div")[0];
var style = window.getComputedStyle(div, "hover");
alert(style.backgroundColor);
};
</script>
</body>
</html>
但我不相信Internet Explorer还没有解决方案， code> document.styleSheets 作为Gumbo建议。但是会有差异。所以，有一个 .hover 类是目前为止最好的解决方案。不干净。
But I don't believe there's yet a solution for Internet Explorer, except for using So, having a document.styleSheets as Gumbo suggested. But there will be differences..hover class is the best solution so far. Not unclean at all.
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