Good News - The tag attributes are automatically added to the UIComponent.attributes
map (At least they are by facelets). That means it's possible to skip adding
<f:attribute> tags.
WRT the responseWriter feature, I think it would be sweet if we could configure
valid pass through attribute keys. So for example:
<application>
<passthroughAttributes>
<attribute name="comingOnThroughBeibe"/>
</passthroughAttributes>
</application>
Then if the responseWriter saw the "comingOnThroughBeibe" key on one of the
UIComponent.getAttributes() entries it would render it.
I think that would have to be implemented on the HtmlRenderer utility methods though
(Moving away from the custom response writer idea a bit)? A custom utility method would
be used by the renderer developer to pass through attributes that are "Hard
Coded" for pass through, as is currently done with the HTML constants, + any
configured pass through attributes.
Thoughts?
Cheers,
- Ole
simon wrote:
Hmm..interesting suggestion, Andrew.
So a custom responsewriter could potentially be written to allow the
insertion of new attributes onto the html tag for any component?
Is this what you were thinking of?
startElement(String ename, UIComponent component) {
// start xml element
// if (component not in already-processed list)
// for each key in component.getAttributes()
// if key.startsWith("tunnelledAttribute:")
// output (key, value) as xml attributes
// store component in already-processed list
}
Then:
<h:someTag ..>
<f:attribute name="tunnelledAttribute:foo" value="bar"/>
That might be interesting to add to the standard MyFaces
ResponseWriter...
Regards,
Simon
On Fri, 2007-12-14 at 19:54 -0700, Andrew Robinson wrote:
Most renderers will not give you access to the root element to be able
to add attributes. However, if the renderers are correctly using the
response writer, they should be calling startElement(String,
UIComponent). By subclassing this, you can trap the call, look for you
attributes and add them to the element.
-Andrew
On Dec 14, 2007 7:07 PM, Ole Ersoy <[EMAIL PROTECTED]> wrote:
Hi,
I have a attribute that I just need to get passed through to the corresponding
html element. For example:
<h:form id="registrationForm"
anAdditionalAttribute="I need to get through to the form element">
</h:form>
In the rendered output I would like:
<form
...
anAdditionalAttribute="I need to get through to the form element">
</form>
I think the process for doing this (Excluding component registration, etc.) is first to
subclass the form component and add the "anAdditionalAttribute" to the
subclass. Then subclass the corresponding renderer and render this attribute.
Does anyone know if there's a quicker/magic way to get the job done?
Thanks,
- Ole
