Dear list,
I decided to throw together an app detailing how JS works with T5 (how
to connect behavior from a component or mixin, the important inner
workings, etc). I created a mixin that attaches behavior (mouse overs)
to an HTML element (and doing this requires the DOM id of that element).
For a simple demo I just wanted to attach it to a styled <div
id="my_div">, so I had to use a <div t:type="any" id="my_div">. No
problem. Now I need that DOM id in my java code (mixin) so I can pass it
to the instantiation string of my JS object. Here's what I tried:
@Parameter(value = "prop:componentResources.id", defaultPrefix =
TapestryConstants.LITERAL_BINDING_PREFIX)
private String clientId;
This is the 'usual' way of getting the client side id of the component,
at least when that component outputs it in the html element body. Since
Any does not, it appears to interpret (or rather ignore) the id
attribute and treat it as an informal. The problem with that is there is
no way, at least that I know of, to get my hands on that value in java
code. So what I'm having to do in my template code is explicitly declare
the t:clientId parameter:
<div t:type="any" t:mixins="hoverhighlight" id="my_box" t:clientId="my_box">
This works, but it's annoying that T5 can't know what the client side id
will be. Components that actually produce a T5-generated client side id
generally implement ClientElement#getClientId and explicitly insert the
html id attribute with that as a value. I realize that it wouldn't make
sense for _every_ component to do this, but IMO there should be a way to
get at this id in the situations where it's been provided. Perhaps I've
missed something, but unless I've missed something there's no current
way to do this and get the dom id in code:
<div t:type="any" t:mixins="hoverhighlight" id="my_box">
Thanks for any input you can offer.
chris
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