(KDE folks should note that this is cross-posted to vim-devel and should
remove that address unless you have a reason not to.)
Mikolaj Machowski wrote:
Is it possible to recognize if window or tab of Konsole lost focus
through termcap/terminfo sequence?
Or is it at least possible with dcop or any other way?
I am investigating ways to support Vim FocusGain/FocusLost autoevents.
Long answer (short answer below):
---------------------------------
Hooboy... assuming there is not currently a way (Bram - or anyone else
that knows - I am an ignoramus here, does vim support these for ANY
'real consoles', or just in the GUI's?), I think making a console vim
that is based on KDE/dcop is a horrible idea, because it will,
naturally, depend on DCOP running. Which means it will only build if KDE
is around, and that in 6-12 months it will be obsolete (when KDE4 comes
out using DBUS). Which means it will only run locally, and then only in
certain circumstances (e.g. you have not used 'su' or changed your home
directory*), and will of course depend on dcop running which basically
means you have to run it in Konsole (ok, that was the point, but...).
And if DCOP doesn't even support this, forget trying to change Konsole
now that KDE development is geared mostly toward KDE4.
(* you can get around this with hacks, but it isn't pretty... believe
me, I know, I /do/ it.)
In short, don't even think about using DCOP. Use gVim instead; if you
can use DCOP to talk to Konsole, you /should/ be able to run an X
application, but not necessarily the other way around.
I wouldn't expect DBUS to be much better in this regard (maybe I am
wrong?). IMO you would be better off getting term* sequences
implemented, since these could be standardized, and then people could
sit on e.g. xterm to support them, and then once vim works with one
terminal emulator, it will 'magically' work with others as they add
support. But it still means Konsole needs to change.
Now, I don't know what the impact of adding capabilities to existing
terminfo entries is, if it breaks existing things that don't know about
them, or what, but you are probably talking about adding sequences to at
least the 'xterm' and 'linux' entries (since I don't think it is
unreasonable to use 'linux' in Konsole... I certainly do, anyway; I
*always* avoid xterm). If you can't just add stuff, then you will have
to invent a new terminfo entry. Either way I am guessing this will only
work if you have a terminfo db that knows about this functionality, and
I couldn't tell you if this sort of thing is going to work at all over
remote connections or not.
Short answer:
-------------
Unless you are really, REALLY desperate and inclined to patch your local
vim with something almost guaranteed not to be accepted upstream, then
you are stuck with Thiago's suggestion of polling for focus. Keep in
mind the caveats above; this will only work in rather limited
situations, and you would be better off using gVim (or KWrite).
That said, asking for DBUS signals would be worthwhile on its own
merits, but to use it in vim, you'll have at least some of the same
problems as with DCOP. Certainly it won't work over some (if not all)
remote connections, plus the only way you could use it is if it can be
turned off by configure, since not all platforms will have DBUS.
--
Matthew
You are in a dark room. The only exit is a door to the east.
> GO EAST
There's a door in your way. Maybe you should open it first?
