savannah: restoring xterm window title on exit wanted

[ossi]

Original: ​http://savannah.gnu.org/bugs/?13750

Submitted by:	Oswald Buddenhagen <ossi>	Submitted on:	Tue 12 Jul 2005 09:26:47 AM UTC
Category:	None	Severity:	3 - Normal
Status:	None	Privacy:	Public
Assigned to:	None	Open/Closed:	Open
Release:	current (CVS or snapshot)	Operating System:	All

Original submission:

another one that has been discussed to death already ...

the first candidate for obtaining the xterm title is the xterm 
title query sequence. at startup the query command should be sent 
and things should continue as usual. the reply should be handled 
asynchronously as part of the normal input stream. that effectively 
means, that at the time the old title is received, a new one has 
been set already long ago - who cares? on the xterm side the 
processing is done in-order, so we'll always get the correct title. 
one remaining case is mc exiting before the report arrives, but 
anybody quitting mc after no more than 5 seconds should be shot 
anyway. :)

hoooow-ever ... the xterm title query sequence has been classified 
a first-class security hole of the calibre of ansi bombs, so many 
sites don't support it any more. so we need a plan b in case we 
don't get a reply to our query within a few (3-5?) seconds.
the answer is once again pretending to be an x application: 
connecting to $DISPLAY and asking the server for $WINDOWID's title.
note that this variant should be a fallback only: it is doomed to 
failure on remote machines if no (x forwarding)/(env var setup) is 
done. it's sorta unclean, too. 

[angel_il]

AFAIK in master this trouble solved

[ossi]

well, and i can say for a fact that it was not ...

[angel_il]

ok. is guaranteed to receive a window title not really (IMHO). i try play with \033[21t\c, and if i have't Х then i get empty string as "window title".

anyway you can try set PS1 or PROMPT_COMMAND like this:
​http://www.tldp.org/HOWTO/Xterm-Title-4.html#ss4.3
before start MC and have fun :)

[ossi]

whoops ...