Hi Guys, I've been doing a little more investigating. The myfaces HtmlFormRenderer has this method in it:
HtmlRendererUtils.renderHTMLAttributes(writer, htmlForm, HTML.FORM_PASSTHROUGH_ATTRIBUTES); So I'm assuming this method will let any attribute that is contained in HTML.FORMPASSTHROUGH_ATTRIBUTES pass through. I'm also assuming any tag attribute that the View compiler cannot match to a component property is stored on the UIComponent.attributes list...which makes me wonder why <f:attribute> is needed...I'm hoping it's there just in case an implementation wanted to support a very strict Page compiler policy of only setting declared component properties. So I'm going to try appending the attribute to the HTML.COMMON_PASSTHROUGH_ATTRIBUTES, which are included in HTML.FORMPASSTHROUGH_ATTRIBUTES and see if that lets it get through. All fingers crossed, as this would make life reel easy. 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
