Oops forgot the "()" in the onclick, hopefully you picked that up.
On 5/25/07, Andrew Robinson <[EMAIL PROTECTED]> wrote:
Okay, your best bet is a custom component for the "area" tag.
In the renderer for this new component, use the AjaxRendererUtils:
public class HtmlArea
extends UIComponentBase
{
// all the standard component stuff ...
}
public class HtmlAreaRenderer
extends RendererBase
{
protected Class getComponentClass()
{
return HtmlArea.class;
}
protected void doEncodeEnd(ResponseWriter writer, FacesContext context,
UIComponent component) throws IOException
{
writer.startElement("area", component);
// write your non-onclick attributes here ...
writer.writeAttribute("onclick",
AjaxRendererUtils.buildOnClick(component, context), null);
writer.endElement("area");
}
}
Then just put an a4j:region around the area if you only want a subset of
values to be submitted & updated.
The other alternative is to not use the buildOnClick, but instead just put
an a4j:support under your custom component:
<my:area ...>
<a4j:support event="onclick" ... />
</my:area>
Or if you don't want to create a custom component:
<a4j:jsFunction name="onImageAreaClicked" ... />
<area ... onclick="onImageAreaClicked" />
This last one is the least effort obviously
-Andrew
On 5/25/07, Balaji Saranathan <[EMAIL PROTECTED]> wrote:
>
> Thanks Andrew.
>
> I'm currently trying to use Ajax4Jsf on top of my MyFaces JSF
> application to enable Ajax capabilities.
>
> I'm trying to prototype a device UI where the "Onclick" JS events of a
> image Map opens up a different set of configuration parameters for the
> device. This keeps changing as per the Map Area clicked. I'm not sure how to
> achieve this.
>
>
>
> My code is something like this.
>
>
>
> <h:graphicImage id="mapImage" url="/images/ device_big.gif"
> usemap="#2004"/>
>
> <map name='Device1'>
>
> <area shape='rect' id='Key1' coords='178,71,203,83' title='Key1'
> nohref='True' onClick="alert('test');" />
>
> <area shape='rect' id='Key2' coords='178,83,203,95' title='Key2'
> nohref='True' onClick="alert('test');" />
>
>
>
> This onclick should be mapped to updating a couple of JSF components on
> the page.
>
>
>
> Regards
>
> Balaji
>
> -----Original Message-----
> *From:* Andrew Robinson [mailto:[EMAIL PROTECTED]
> *Sent:* Friday, May 25, 2007 11:54 AM
> *To:* MyFaces Discussion; [EMAIL PROTECTED]
> *Subject:* Re: Javascript and JSF
>
>
>
> Yes
>
> There is a submit on event control in the sandbox that will submit the
> form.
>
> If you want to submit one control, I would suggest the a4j:support from
> JBoss Ajax4Jsf that allows you to submit only one control and update the
> page using AJAX.
>
> There are many more answers to your question, so the question really is
> what is you specific use case?
>
> On 5/25/07, *Balaji Saranathan* < [EMAIL PROTECTED]> wrote:
>
> Hi,
>
>
>
> Is it possible to capture a JavaScript event and update a selected JSF
> component on the page?
>
>
>
> Regards
>
> Balaji
>
>
>
>
>
>
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