Re: confusion (aka specifiers...)

Stephen J. Turnbull writes:
 > >>>>> "giacomo" == giacomo boffi <[email protected]> writes:
 > 
 >     giacomo> [i'm not sure about the correctness of my lexicon] is it
 >     giacomo> possible to add to a specifier an instantiator that
 >     giacomo> matches the frame that has the focus?
 > 
 > You mean you want (for example) to have the text in the focused
 > frame to be black on some background, while the text in unfocused
 > frames is gray80, say?  And when the focus leaves a frame, it turns
 > from black to gray, while the frame that focus enters turns from
 > gray to black?

 yes (well, it's the modeline background, but you've hit the target)

 > As far as I know, you can't do that currently.  It's an interesting
 > idea though, and probably is do-able without performance loss.

 about performance, now i have

,----
| (set-face-background 'modeline "red3")
| (defun modeline-with-focus ()
|       (set-face-background 'modeline "red2" (current-frame)))
| (defun modeline-w/o-focus ()
|       (set-face-background 'modeline "red3" (current-frame)))
| (add-hook 'selected-frame-hook 'modeline-with-focus)
| (add-hook 'deselected-frame-hook 'modeline-w/o-focus)
`----
 but i see a bit of flicker every time the modeline is changed

 > The main issue I see with trying to implement is that it's not
 > obvious to me where such a specification should rank.
 > 
 > Should the `current-focus' spec have precedence, or should the
 > `frame-local' spec get it?