Fx.Scroll. max scroll impossible if there is border or scrollLine.

[magmoro@…]

It's imposible full scroll with Fx.Scroll . Here example (strict mode):
http://theocp.info/studio/moro/Fx.Scroll/scroll.html
If u even set x or y very big u get not full scroll.
It because u use offsetWidth and offsetHeight (el.size[z]) when calculate max:

var el = this.element.getSize();

var values = {'x': x, 'y': y};
for (var z in el.size){

var max = el.scrollSize[z] - el.size[z];
...

U shoud use clienWidth and clientHeight.
Fix:
var el = this.element.getSize();

el.size={

x : this.element.clientWidth,
y : this.element.clientHeight

}
var values = {'x': x, 'y': y};
for (var z in el.size){

var max = el.scrollSize[z] - el.size[z];

Here fixed example:
http://theocp.info/studio/moro/Fx.Scroll/scrollFix.html
Tested in FF2 IE6 Opera 9.
Note: still there is some issue in Opera if padding!=0.

[kamicane]

clientWidth/clientHeight are not crossbrowser element properties.

[magmoro@…]

why not crossbrowser? http://www.quirksmode.org/js/elementdimensions.html

scrollSize is size of content and paddings

clientSize is size of visible content and paddings

offsetSize is size of visible content and paddings + scrollBar + border

must be scrollSize-clientSize, not scrollSize-offsetSize.

scrollSize-offsetSize<scrollSize-clientSize.

scrollSize-offsetSize not max if there is border or scrollBar.

[kamicane]

I remember trying clientWidth/Height in ie6, and it gave me problems. Do you have a (working) test page?

[magmoro@…]

what type of problems? no problems for me.

http://www.xp-computers.ru/moro/scroll.html

[kamicane]

fixed in [998]

[magmoro@…]

fix is broken. Fx.Scroll now use offsetSize not a clientSize

[kamicane]

for posterity, clientWidth and clientHeight only work in explorer when the element has a layout (hasLayout)

A possible fix is to add this layout by adding the zoom style to ie.

Another possible fix is reading the border values to manually calculate the client dimensions, but that would only work if borders are set in pixels.