bug#51490: Show an indicator when Emacs is busy somewhere in the Emacs window

[Lars Ingebrigtsen]

Lars Ingebrigtsen <larsi@gnus.org> writes:

>>> I'm not at all sure whether there'd be any negative repercussions to
>>> spinning a glyph in the mode line area (for instance -- what about if
>>> you're running over a slow ssh connection?), but perhaps it's worth
>>> exploring and see how goes?
>>
>> Let's continue discussing this as a new bug.
>
> I wonder whether this could be implemented by modifying the glyphs in
> the mode line directly instead of going through the entire mode line
> machinery (for efficiency).  I was thinking we'd designate (say) the
> first (or last) displayed position on the mode line as "the spinner"
> (and restore the previous glyph there after finishing spinning, of
> course).

Eli, does this seem like feasible approach to you?