Feature: window fences

[Björn Fischer]

>     https://gitlab.xfce.org/xfce/xfwm4/-/merge_requests/35
>     <https://gitlab.xfce.org/xfce/xfwm4/-/merge_requests/35>
> 
>     That should be very close to the feature you are looking for.
> 
> 
> It is indeed already more in the direction of what i would like to use
> 1. i only need one grid (tried that and it works)
> 2. i do need multimonitor working (you have that in the todo)
> 3. i would like to be able to span multiple 'cells' of the grid

The window should snap to adjacent cells if the mouse pointer is near a
grid line. I may have an idea to get more 'windowgrid'-like behaviour,
but that'll need some research and experimenting...

> Are you still going to work on this? Or did you abandon it?

My plan is at least to add multi monitor support -- as soon as I have
time for that.

Cheers

Björn