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Re: X11 ready for prime time?

On Sat, 3 May 2008, Jeremy Huddleston wrote:

and I'm still seeing the momentary-focus-drop problem whenever iCal or
Time Machine does something in the background.  These are annoying
enough that I eagerly look forward to each new drop from Jeremy,
but they don't really interfere with getting my work done.  Someone
else might not notice these problems at all (especially if not an FFM
or Spaces user), or might find them completely intolerable.

I'm not really sure what is going on here, and I am honestly not sure how to debug it... and even still, I'm fairly certain that it's not a bug in X11 itself. =/ If anyone can get an easy-to-reproduce (ie: not "wait for an iCal alarm to sound") case, please let me know and I'll try to figure out who is responsible for this bug and get it fixed. In the mean time, I'm at a bit of a loss =/

Try starting OpenOffice.org (I'm using a fink version from 10.4 so not sure this will work for you but it might). It seems to do some java-related startup stuff that flips the focus several times for me. You have to launch from the command line (in an xterm, say) so background it and keep doing stuff in that xterm and see what happens to focus...

Matlab is another hybrid java X11 app, so maybe a Matlab user can see if there is a sequence to trigger it during launch?

I agree it may not exactly be an X11 bug, but it is possible to evade it since the Tiger version of X11 has the problem whereas the equivalent Tiger XDarwin doesn't cede focus except to logout. It seems to be part of how Mac apps in general "play nicely with each other" by allowing interuptions if the other app is insistent enough. Only some of us find it impedes workflow rather than helping it (like the Spaces auto-lurching). Bouncing in the dock is fine, but grabbing focus while I'm frantically typing has unintended consequences (that astonishment factor as the dialogue window closes and I've no idea what I just typed in it). Yesterday I repeatedly failed to open a disk image that was throwing up a dialogue I didn't expect after a five minute verify. So, you need to figure out how to make X11 "deaf" to all but the most drastic requests for focus (like logout, or run-out-of-battery, or screensaver-kicks-in-and requires-password).

-- Viv

------------------------------------------------
Dr Viv Kendon    http://quantum.leeds.ac.uk/~viv
Quantum Information          Physics & Astronomy
               University of Leeds
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References: 
 >X11 ready for prime time? (From: "Eric Fielding" <email@hidden>)
 >Re: X11 ready for prime time? (From: Tom Lane <email@hidden>)
 >Re: X11 ready for prime time? (From: Jeremy Huddleston <email@hidden>)



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