On Fri, 2006-03-10 at 14:42 -0500, David Park wrote:
> Using cocoon 2.1.8, here is the problem:
>
> Say a form has a repeater with many rows. If there is a repeater-action
> at the bottom that adds a new row, clicking it causes a form submit, and
> the user ends up at the top of the page, where the new row sits at the
> bottom of the page.
>
> Likewise, if the repeater rows themselves have nested repeaters, any
> action that causes a form submission leaves the user at the top of the
> page, in a different "context", if you will, than where they performed
> the "submit action".
>
> Is it possible, without ajax, to have a page submission target the
> widget that was "acted upon"?
>
> Is CForms able to output an <a name="repeteater-row-id"> that is
> targeted somehow via an http://my_continuation_url#repeater-row-id?
>
> Many thanks to anyone who has any assistance to offer.
Another approach I once used in the past was to store the scroll
position (in pixels) in a hidden input field when submitting the form,
and restoring it when displaying the form.
You could add a hidden field widget for this purpose.
Here's some code I found back:
<script type="text/javascript">
var storeScrollOnSubmitHandler = new Object();
storeScrollOnSubmitHandler.forms_onsubmit = function() {
var scrollPos = window.pageYOffset; // Mozilla
if (scrollPos == undefined) {
if (document.compatMode && document.compatMode !=
"BackCompat")
scrollPos = document.documentElement.scrollTop;
else
scrollPos = document.body.scrollTop;
}
if (scrollPos != undefined) {
document.forms["editdoc"].scrollPosition.value = scrollPos;
}
};
forms_onsubmitHandlers.push(storeScrollOnSubmitHandler);
var setScrollPosHandler = new Object();
setScrollPosHandler.forms_onload = function() {
function restoreScroll() {
var scrollPos = document.forms["editdoc"].scrollPosition.value;
if (scrollPos != null && scrollPos != "")
window.scrollTo(0, scrollPos);
}
setTimeout(restoreScroll, 200);
}
forms_onloadHandlers.push(setScrollPosHandler);
</script>
This code assumes there's a field called "scrollPosition" on a form
named "editdoc", so you'll need to change at least that. I see the
restore is done via a timeout -- I don't remember why that was, you
might try to remove that. Also I just changed some things to the
restoreScroll function which might not work (e.g. it could be that you
need to parse the scrollPos to a number). Anyhow, this should get you
started.
--
Bruno Dumon http://outerthought.org/
Outerthought - Open Source, Java & XML Competence Support Center
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