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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Brian Jenkins <brian@brianjenkins.org>
Cc: Drew Adams <drew.adams@oracle.com>, emacs-devel <emacs-devel@gnu.org>
Subject: Re: [PATCH] frame.c: focus hooks
Date: Mon, 18 Nov 2013 19:19:11 -0500	[thread overview]
Message-ID: <jwvtxf9w8nb.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CADTx1Oz6T_mmDdPhEYhRwEgsucXjLxZwPkCvArejLj13De9gpg@mail.gmail.com> (Brian Jenkins's message of "Mon, 18 Nov 2013 08:24:25 -0500")

> Unfortunately, no.  The "focus in" and "focus out" events in Emacs fire
> per frame.  So alt-tabbing between Emacs frames will trigger a focus loss
> event for the origin frame and focus gain for the destination frame

Indeed, that's a problem in the current implementation, but that's not
the fault of your patch (your patch only makes the existing `focus-in'
and `focus-out' special events available via hooks, which is indeed more
convenient).

> It's not clear to me that X itself even *has* a concept of "active
> application" distinct from "frame that has input focus".

That's right: X11 has no such concept, AFAIK.  So we can't avoid
receiving a FocusOut/FocusIn pair of X11 events.  Hopefully, someone
will figure out how to cancel out such pairs in the C code so they don't
result in a `focus-in' and `focus-out' pair of Lisp-level events.


        Stefan



  parent reply	other threads:[~2013-11-19  0:19 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-17 17:50 [PATCH] frame.c: focus hooks Brian Jenkins
2013-11-17 18:29 ` Bozhidar Batsov
2013-11-17 22:25   ` Brian Jenkins
2013-11-17 22:33     ` Drew Adams
2013-11-18 13:24       ` Brian Jenkins
2013-11-18 14:53         ` Drew Adams
2013-11-19  0:19         ` Stefan Monnier [this message]
2013-11-19  8:26         ` Stephen J. Turnbull
2013-11-19 14:10           ` Bozhidar Batsov
2013-11-20  3:10             ` Brian Jenkins
2013-11-18  8:20     ` Bozhidar Batsov
2013-11-18 13:32   ` Stefan Monnier
     [not found]     ` <CAM9Zgm18uL7+PJ+60NjZqtjZJ6tUV77xUbFhXh7UPwqs==1=hg@mail.gmail.com>
2013-11-18 14:20       ` Fwd: " Bozhidar Batsov
2013-11-18 14:23     ` Brian Jenkins
2013-11-18 18:44   ` Richard Stallman
2013-11-18 19:49     ` Brian Jenkins
2013-11-19  6:02       ` Richard Stallman
2013-11-19 18:14         ` Brian Jenkins
2013-11-19 18:53           ` Drew Adams
2013-11-20  0:52             ` Brian Jenkins
2013-11-19 23:42           ` Richard Stallman
2013-11-20  0:52             ` Josh
2013-11-20  3:16               ` Stefan Monnier
2013-11-20  3:36                 ` Josh
2013-11-20  7:34                   ` martin rudalics
2014-01-09 17:01                     ` Josh
2014-01-11 10:25                       ` martin rudalics
2014-01-11 19:05                         ` Josh
2014-01-12  9:54                           ` martin rudalics
2014-01-14 17:30                             ` Josh
2014-01-14 18:10                               ` martin rudalics
2014-01-10 17:31                   ` Stefan Monnier
2014-01-11 19:06                     ` Josh
2013-11-20  0:53             ` Brian Jenkins
2013-11-20  7:46               ` Jarek Czekalski
2013-11-17 19:28 ` Glenn Morris
2013-11-17 21:19 ` Stefan Monnier
2013-11-18  4:11 ` Leo Liu
     [not found]   ` <CADTx1Oy5pUmb9sPU6jm0yt1hJtvgJmfDtZQpeFakmHknhEXE=A@mail.gmail.com>
2013-11-18 13:33     ` Fwd: " Brian Jenkins

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