Re: Tags creating Tags

Mon, 27 Oct 2003 14:53:52 -0800

For what you want to do what is wrong with using a

<jsp:include page="common_tags.jsp" flush="true" />

where common_tags.jsp contain all the tags and html you
wanted to declare in a seperate tag.

Stephan


From: "Lukas Bradley" <[EMAIL PROTECTED]>
Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
Subject: Tags creating Tags
Date: Sun, 26 Oct 2003 19:34:04 -0500

Hi all,

Maybe I'm just tired, but the answer to this is not to be found. I could me
making this harder than it is, or something might be right in front of me,
and I don't see it.

What I want is a custom tag that creates other custom tags.  Here is a
simple example:

<lukas:myTag lang="en" />

Should produce something like this:

<table>
<tr><td>English</td></tr>
<tr><td><html:file property="formFile" styleClass="FormField"/></td></tr>
<!-- Imagine a lot more custom tags here -->
</table>

Which should then evaluate to:

<table>
  <tr><td>English</td></tr>
  <tr><td><input type="file" name="formFile" value=""
class="FormField"></td></tr>
   <!-- Imagine a lot more custom tags rendering here. -->
</table>

I've thought about trying to extend BodyTagSupport, return
EVAL_BODY_BUFFERED in doStartTag(), modify the bodyContent in doAfterBody(),
then return EVAL_PAGE() in doEndTag(). However, BodyContent has a protected
constructor, and no way to set its content.

I want to maintain the functionality gained from Struts-like custom tags,
while extracting the creation of them in a super-duper momma tag. Any help?

Lukas




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