Hi Jean-Noel,
On Monday 22 June 2009 Jean-Noël Rivasseau wrote:
> That's the point, I want to query from the element base, not the whole
> document.
Then you have to provide the second parameter. This parameter will set the
root for the query.
> Actually what I want is a bit more complex, I want to return:
> > .FirstClass > .SecondClass
>
> from the element base, that is an element that has the current element as a
> grandfather (and has the class SecondClass, with its parent the class
> FirstClass).
> I cannot really do this with Collection.query, because if I write:
>
> qx.bom.Collection.query(".FirstClass > .SecondClass",myDomElement)[0];
>
> it can return an element that had not the base element as a grandfather...
> All these problems would be solved if the :root syntax was supported I
> guess, but as it is not what should I use ?
If I understand you correctly the second parameter will do the job.
Suppose you have the following DOM fragment (all childs of the body)
--snip--
<div id="myElement">
<div class="MyTargetClass">
<div class="MyTargetClass"></div>
</div>
</div>
<div class="MyTargetClass"></div>
--snip--
The query
qx.bom.Collection.query(".MyTargetClass")
would produce 3 hits and the query
var rootNode = document.getElementById("myElement");
qx.bom.Collection.query(".MyTargetClass", rootNode);
would only produce 2 hits since the query only searches for elements with are
children of "myElement".
Is that the missing part you searched for?
cheers,
Alex
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