You can do a recursive bind, but you must make it explicit:
def mySnippet(xhtml: NodeSeq): NodeSeq = {
def doBind(xhtml: NodeSeq): NodeSeq =
bind("b", xhtml,
"link" -> { (kids: NodeSeq) => SHtml.link("next", () =>
clicked(b), doBind(kids)) },
"name" -> "the name",
"description" -> "the description")
doBind(xhtml)
}
-Ross
On Nov 11, 2009, at 1:21 PM, aw wrote:
>
> OK, your suggestion definitely makes the snippet code more readable,
> but I fear I didn't make my point clear because the snippet code still
> is highly coupled with the view layout.
>
> Imagine that I want to change my view from this:
>
> <a href="next">
> <span class="name">name</span>
> <span class="comment">description</span>
> <span class="arrow"/>
> </a>
>
> to this:
>
> <span class="name">name</span>
> <span class="comment">description</span>
> <a href="next">
> <span class="arrow"/>
> </a>
>
> This would mean that I need to change my template from:
>
> <b1:link>
> <span class="name"><b2:name/></span>
> <span class="comment"><b2:description/></span>
> <span class="arrow"/>
> </b1:link>
>
> to this:
>
> <span class="name"><b:name/></span>
> <span class="comment"><b:description/></span>
> <b:link>
> <span class="arrow"/>
> </b:link>
>
> And then I need to update my code from:
>
> bind("b1", xhtml",
> "link" -> kids => SHtml.link("next", () => clicked(b),
> bind("b2", kids, "name" -> b.name.is, "description" ->
> b.description.is
> )))
>
> to something like this:
>
> bind("b", xhtml",
> "name" -> b.name.is,
> "description" -> b.description.is,
> "link" -> kids => SHtml.link("next", () => clicked(b))
> )))
>
>
> My complaint is that reorganizing the view is tending to require code
> changes at the snippet level. And that just doesn't seem right to me.
>
> At first, I thought that I could leverage the recursive nature of
> snippets. In other words, I thought I could avoid the b1 and b2
> binding keys and simply use b, then when the first round contained
> more b variables to bind, it would recurse. Alas, this didn't work
> (I'm sorry, but I don't recall the error message). But this was what
> I was thinking:
>
> <b:link>
> <span class="name"><b:name/></span>
> <span class="comment"><b:description/></span>
> <span class="arrow"/>
> </b:link>
>
> or this:
>
> <span class="name"><b:name/></span>
> <span class="comment"><b:description/></span>
> <b:link>
> <span class="arrow"/>
> </b:link>
>
> and the code would remain this:
>
> bind("b", xhtml",
> "name" -> b.name.is,
> "description" -> b.description.is,
> "link" -> kids => SHtml.link("next", () => clicked(b))
> )))
>
>
> >
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