On Jan 30, 11:25 am, "Karsten Patzwaldt <[EMAIL PROTECTED]>"
<[EMAIL PROTECTED]> wrote:
> Hi.
>
> I'm currently trying the following. First, I construct my output HTML
> via DOM constructors, i.e. DIV(null, A(...), ...). Then, I'd like to
> traverse the constructed DOM tree in order to append "onchange"
> attributes to all TEXTAREA and SELECT tags. According to the
> documentation, DOM is iterable, and imap iterates over iterables, so I
> tried
If you're specifically adding an onchange handler to textarea and
select tags, you can use `root.getElementsByTagName('textarea')`, with
root being the root node that you constructed. `getElementsByTagName`
is a regular DOM method that is built in.
Alternatively you could use
`MochiKit.DOM.getElementsByTagAndClassName('textarea', null, root)`.
Or MochiKit.Selector (if using the SVN Trunk / '1.4' codebase) for
more complex expressions regarding the child elements you want to
iterate over.
For example::
var md = MochiKit.DOM, Iter = MochiKit.Iter,
Signal=MochiKit.Signal;
var root = buildmytree(...);
var myhandler = function(e) { ... (onclick handler) }
Iter.forEach(['textarea', 'select'], function(tagname) {
Iter.forEach(root.getElementsByTagName(tagname),
function(element) {
Signal.connect(element, 'onclick', myhandler);
});
});
You could probably use other Iter / Base tools to compile these in
other ways::
list(imap(function(node) { alert(node); return node; },
chain(imap(root.getElementsByTagName, ['textarea', 'select']))
))
I have no idea if that code really works, but it could be a reference
point for how to get all of the desired elements into a single
iterable.
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