If you can prevent Tapestry from removing your comments, you can just use
comments to transfer your data. Walking the dom isnt that costly in java
script and if you have a certain div (like the content div etc) you can use
it as a starting point. Inside the comment you can write any payload you
want. We used it in GWT heavily putting json strings inside the comment and
added a label on top to find the right comment to look at. Sadly tapestry
currently removes all comments.
So another idea is using javascript and create a certain object that puts
the string you want to transfer into it. It is quite easy and you can find
the object from anywhere of your page by just looking for it. The question
is how to make it unique and yes you can use UUID or some other mechanism.
Also if I remember correctly doesnt Tapestry always create unique ids for
elements by adding $number to the components name?
Cheers,
Martin (Kersten)
2013/9/20 Thiago H de Paula Figueiredo <thiag...@gmail.com>
> On Fri, 20 Sep 2013 18:48:57 -0300, Dmitry Gusev <dmitry.gu...@gmail.com>
> wrote:
>
> And yes, strictly speaking, this will make the document invalid, because
>> it violates specification.
>> But in practice things won't stop working if you put multiple elements
>> with the same ID on a page. You won't see any errors, etc.
>>
>
> It's illegal (you said it was legal) and not recommended but it ends up
> working because browsers are lenient, maybe too lenient. ;)
>
>
> The only side-effect will happen is that you won't be able to get second,
>> third, etc. elements by using ID selectors in JS.
>> But CSS styling rules will still work. In the example below you will see
>> content of both divs in UPPERCASE, but jQuery('#id1').length will yield 1
>> (this will be the first element in the order of appearance in dom), also
>> document.getElementById("id1") will return first element:
>>
>
> More reasons to avoid duplicate ids: things stop working the way you
> expect. :)
>
>
> --
> Thiago H. de Paula Figueiredo
>
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