Hi David,

can you post a (playground) demo so we can take a look at your code?

Regards,
  Alex

On Wednesday 28 September 2011 14:20:23 david leray wrote:
> Hi everyone,
> I am currently trying to use qx.bom.element.Scroll.intoView to scroll an
> element into view in the main window and completely failing. My window
> doesn't scroll at all both under Safari and Firefox.
> 
> After taking a look at the code and logging lots of stuff, I really don't
> understand how it is supposed to work.
> 
> Excerpt from qx.bom.element.Scroll:
> ----------------
> intoViewY : function(element, stop, align)
>  {
>     var parent = element.parentNode;
>     var doc = qx.dom.Node.getDocument(element);
>     var body = doc.body;
> 
>            […]
> 
>     while (parent && parent != stop)
>        {
>                if (parent.scrollHeight > parent.clientHeight && (parent ===
> body || qx.bom.element.Overflow.getY(parent) != "visible")) {
>                        [Main work code]
>                }
>                parent = parent.parentNode;
>        }
> }
> ----------------
> 
> When the parent chain reaches body, body.scrollHeight and body.clientHeight
> are always equal, both under FF and Safari, whatever the size of the
> (viewport) main window, and so no work is ever done and nothing scrolls
> into view.
> 
> As a fast and dirty workaround, if I replace
> ----------------
>                if (parent.scrollHeight > parent.clientHeight && (parent ===
> body || qx.bom.element.Overflow.getY(parent) != "visible"))
> ----------------
> with
> ----------------
>       if ((parent.scrollHeight > parent.clientHeight && (parent === body ||
> qx.bom.element.Overflow.getY(parent) != "visible")) ||
> (parent.scrollHeight > window.innerHeight && (parent === body)))
> ----------------
> it seems to work as expected.
> 
> I guess I'd like someone to confirm it is a bug, because I am not sure my
> expectations as to how this function should work are correct and I don't
> see how this bug could not have been detected before if anyone uses this
> function.
> 
> Thanks in advance,

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