WM suport for grab key scrolling

[Marco Pesenti Gritti]

On Fri, 2007-04-20 at 10:22 -0400, Eben Eliason wrote:
> 
> Absolutely.  Ideal behaviors:
> 
> 1) The scrolling region directly visible beneath the mouse gets grab focus.
> 2) If two scrolling regions overlap, the top one should take the grab focus.
> 3) If a scrolling region is embedded in another (such as an iframe in
> a web page), then the innermost region should get grab focus, unless
> it reaches its min or max scroll and can no longer move, at which
> point the next region in the hierarchy gets it.
> 

Hmm I'm not convinced about this. Usually keyboard actions apply either
globally (to the system or to the active window) or to the focused
element. I feel pretty strange, interaction wise, to have a keyboard
button depend on the position of the mouse.

Also doesn't this introduce accessibility issues?

> As a sidenote, Marco, I noticed that the frame key does not match this
> behavior in 385.  Was it changed?  I seem to recall it used to work...

Bug, someone needs to find the time to fix this up...

Marco