Heh - I just sent a CL that adds methods to get the maximum
vertical/horizontal scroll position:
http://gwt-code-reviews.appspot.com/1370801/

<http://gwt-code-reviews.appspot.com/1370801/>You can wait for GWT 2.3, or
you can use the following:
int maxVerticalScroll = scrollPanel.getElement().getScrollHeight() -
scrollPanel.getElement().getClientHeight();

Thanks,
John LaBanca
[email protected]


On Mon, Feb 28, 2011 at 4:44 PM, Rob Tanner <[email protected]> wrote:

> Hi,
>
> I have an application where a user needs to read through the a document
> displayed in a ScrollPanel() and when they've scrolled all the way through I
> want to enable a button that the user can click on to acknowledge that
> they've read the document.  How can I tell if the user has scrolled all the
> way through to the text (scroll bar all the way at the bottom).  I can use
> getScrollPosition() to get the vertical scroll offset in pixels, but how can
> I tell what the max value should be should the documents content be
> changed?  Or, is there an entirely better way to go about this?
>
> Thanks,
>
> Rob Tanner
> Linfield College
>
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