The DontFocusOffscreen Patch


    This patch attempts to prevent input focus from being transferred
inappropriately to windows that are not on the screen (on a different
desk or a different page). It addresses two problems:

1.  Focus transfer when a new window opens

    When opening a new ClickToFocus window, FVWM wants to transfer the
input focus to it. This is not particularly desirable if the new window
happens to be on another desk or page and Skip Mapping is in effect - i.e.,
the window is not visible on-screen, so you don't see where your focus went.
This patch prevents that loss of focus.

    The problem is compounded if you have applied the StartsOnPage patch.
FVWM notices if the new window is on a different desk, and refuses to give
it focus (although you've already lost focus from the window you wanted to
be typing in). But StartsOnPage didn't take this into account, so you can
not only have your focus stolen, but actually given to the off-screen 
window.

	This patch was going to be a correction to StartsOnPage, but it 
fixes problems in systems without StartsOnPage, so I've kept it separate. 
But, if you apply the StartsOnPage patch, you should *definitely* apply 
this one too.


2.  Focus transfer when an app closes

    When an app closes, FVWM will try to restore focus to the next window
in the chain, even if it is not on the currently visible page. The typical
symptom is that you appear to be on the root window, but your root bindings
stop working. Or, you could find yourself typing in a window that you didn't
expect.

    This patch will cause focus to revert to the root context when an app
closes, if there is not a reasonable focus candidate on the currently visible
page (or the current desk).



    NOTE:  The patch does not prevent an off-screen window from *having* the
focus (this could be useful in certain situations), just from having focus
transferred to it when it's off-screen.