[sugar] hot corners

[Eben Eliason]

Duplicated from another thread, but it seems this comment belongs here:

On Thu, May 15, 2008 at 4:20 AM, Simon Schampijer <simon at schampijer.de> wrote:
> Mikus Grinbergs wrote:
>  >> I have put an rpm which has a control panel option to set a delay for
>  >> the frame
>  >> activation and an option to toggle the top of the screen to activate
>  >> the frame
>  >> as well.

I'm not in agreement with allowing Frame activation from arbitrary
corners.  I think it's all or nothing, due to the use of each edge for
independent items, and the position of notifications in each corner.
If someone doesn't want it available in all corners, they should use
the key instead.

On the other hand, if you meant "top of the screen" to mean the top
/edge/ (a la "warm edges"), I would move to make this again a global
option (on all edges), with a separate delay adjustment.  Warm edges
would be off by default, while hot corners, I still think, could be on
by default with a reasonable delay, at least until we get further
testing feedback regarding the effectiveness of that solution.

- Eben