On 8 April 2010 12:20, Richard Quadling <rquadl...@googlemail.com> wrote:
> Hi.
>
> Brain has gone to sleep.
>
> I've got a form where I'd like to be able to allow some controls to be
> disabled by a checkbox.
>
> Working code ...
>
> <script type="text/javascript">
> function handleHideClick(ev)
> {
> hideClick(ev.element());
> }
>
> function hideClick(el)
> {
> el.up('tr').select('input[type=text]')
> .each
> (
> function(el2)
> {
> el2.disabled = el.checked;
> }
> );
> }
>
> document.observe('dom:loaded', function(ev_dom_loaded)
> {
> $$('.dtl_Blank input[type=checkbox]').each(function (el)
> {
> hideClick($(el).observe('click', handleHideClick));
> });
> });
> </script>
>
> Is there a way to simplify this?
>
> I initially thought that Element.fire() would help, but that is for
> custom events only.
>
> Essentially, whilst setting the click handler, I want to be able to
> call the handler also.
>
> Regards,
>
> Richard.
> --
> -----
> Richard Quadling
> "Standing on the shoulders of some very clever giants!"
> EE : http://www.experts-exchange.com/M_248814.html
> EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp
> Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
> ZOPA : http://uk.zopa.com/member/RQuadling
>
Ha!
Seems that [1] and [2] have it covered.
OOI, the fireEvent code at the bottom of [1] (Post #9 by Rick),
(cleaned up the quotes) ...
function fireEvent(element,event){
if(document.createEvent){
// dispatch for firefox + others
var evt = document.createEvent('HTMLEvents');
evt.initEvent(event, true, true ); // event type,bubbling,cancelable
return !element.dispatchEvent(evt);
} else {
// dispatch for IE
var evt = document.createEventObject();
return element.fireEvent('on' + event,evt)
}
}
looks good and useful.
Is there a way to get this tested across a wide range of
browsers/os/etc.? Does Prototype have a test farm?
Richard.
[1] http://jehiah.cz/archive/firing-javascript-events-properly
[2] http://lifescaler.com/2008/04/simulating-mouse-clicks-in-javascript/
--
-----
Richard Quadling
"Standing on the shoulders of some very clever giants!"
EE : http://www.experts-exchange.com/M_248814.html
EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
ZOPA : http://uk.zopa.com/member/RQuadling
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