使用 jQuery 将样式表附加到 iframe [英] Append a stylesheet to an iframe with jQuery
问题描述
我正在创建一个 HTML 编辑器,类似于我现在正在输入的这个编辑器,输出如下.我正在使用 iframe 并将 $htmlTextBox.val() 转储到 iframe 的主体中.
I'm creating an HTML editor, similar to this one I'm typing in right now with the output below. I'm using an iframe and dumping the $htmlTextBox.val() into the body of the iframe.
我正在尝试在 iframe 中创建一个样式表,使其看起来和工作一样好.
I'm trying to create a stylesheet inside the iframe so that it looks as good as it works.
提前致谢!
$htmlTextBox.keyup(function(){
SetPreview();
});
function SetPreview()
{
var doc = $preview[0].contentWindow.document;
var $body = $("body", doc);
$body.html($htmlTextBox.val());
}
推荐答案
虽然您可以与 iframe 的 document.styleSheets 进行交互,但传统的可靠方法是将样式表放在第一个位置(通过编写 iframe-src 指向具有所需样式表的空文档),或者使用 document.write()
将其放置到位.例如:
Whilst you can interact with an iframe's document.styleSheets, the old-school reliable way is either to have the stylesheet there in the first place (by writing an iframe-src to point to an empty document with the desired stylesheet), or put it in place with document.write()
. For example:
<body>
<iframe></iframe>
<script type="text/javascript">
var d= frames[0].document;
d.open();
d.write(
'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional //EN" "http://www.w3.org/TR/html4/loose.dtd">'+
'<html><head><style type="text/css">'+
'body { font-size: 200%; }'+
'</style></head><body></body></html>'
);
d.close();
d.body.innerHTML= '<em>Hello</em>';
</script>
</body>
(这也会将 iframe 文档设置为标准模式,假设这是您想要的.)
(This will also set the iframe document to Standards Mode, assuming that's what you want.)
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