Window placement and calculate-workarea

[Rafal Kolanski <rafalk cse unsw edu au>]

Hello again,

Looking at how first-fit placement works (and top-left too), they seem 
to call (calculate-workarea #:window w) for the window being created.

Inside calculate-workarea, I see this:
    (unless head
      (setq head (current-head window)))

However, on my system, (current-head window) for a freshly created 
window always returns head 0 ... it doesn't make sense to me why one 
would want that anyway. I'd want to get the head that currently has 
input focus, or even the mouse cursor.

Does anyone know why this is the way it is?

Sincerely,

Rafal Kolanski.