问题
I want to style some forms in Plone3+collective.xdv but I don't want all forms to get the special style.
So I'd like to add a special styled-form class name to the class attribute of the body element just when displaying certain templates:
- contact-info
- sendto_form
- PFG forms
So I thought that I could manage to perform this with XDV in order not to modify those templates.
By using the if-content directives in XDV rules I can check if those templates are being displayed:
css:if-content="body.template-contact-info"
for instance.
But I don't find the way to keep the class attribute as delivered by Plone and add the special class based on that condition.
My desired result would be something like:
<body class="template-contact-info styled-form">
...
</body>
Thanks in advance.
回答1:
With Diazo/plone.app.theming you can merge attributes from the template and content, see: http://diazo.org/basic.html#merge
If you can't upgrade then you'll need to do this with inline XSL, something like:
<prepend theme="/html/body" css:if-content="body.template-contact-info"><xsl:attribute name="class"><xsl:value-of select="/html/body/@class"/> styled-form</xsl:attribute></prepend>
Update: I forgot the tag in the example above. It should work now.
来源：https://stackoverflow.com/questions/6599993/adding-an-class-to-body-element-with-xdv