[jira] Updated: (STR-2280) [taglib] Ability to extend Struts tags implementation cleanly

["Paul Benedict (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/struts/browse/STR-2280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Benedict updated STR-2280:
-------------------------------

    Fix Version/s: Future
         Assignee:     (was: Struts Developers)

> [taglib] Ability to extend Struts tags implementation cleanly
> -------------------------------------------------------------
>
>                 Key: STR-2280
>                 URL: https://issues.apache.org/struts/browse/STR-2280
>             Project: Struts 1
>          Issue Type: Improvement
>          Components: Taglibs
>    Affects Versions: 1.2.4
>         Environment: Operating System: All
> Platform: All
>            Reporter: Gerald Boersma
>            Priority: Minor
>             Fix For: Future
>
>
> For our project, we have created an extension to Struts HTML tags where we copy
> the tag descriptor file and specify a sub-class of the Struts provided tag
> implementation in order to enhance output based on meta-data related to the control.
> For example, the tag may specify that a control is required as part of its
> meta-data. The extended tag then draws a "required" symbol next to the form
> input automatically. This allows the display of the forms to be more
> configurable, rather than hard-coded into the JSP. Other examples include input
> masks, help text, labels, etc.
> I would love to see such a meta-data mechanism provided as part of Struts (I can
> give an example of our implementation if requested). Barring that, I would love
> to see an easier way to extend the widgets in Struts in a uniform and safe way,
> that would not break if the impleemntation of Struts changes. Right now, our
> implementation seems fragile in this regard (over-ride different methods for
> differnet controls). 
> This would require a documented, clean way in the API to over-ride a widget's
> drawing method without having to change the Struts tag descriptor file. Perhaps
> a way to specify a widget-drawing helper class in a properties file that is
> deferred to instead of the default widget drawing method, if specified.

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