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From: Stefan Monnier <monnier@HIDDEN>
To: martin rudalics <rudalics@HIDDEN>
Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active
mark leaves behind a region overlay
In-Reply-To: <53e1c03a-25da-c772-1801-8c8cb8ee0df3@HIDDEN> (martin rudalics's
message of "Fri, 7 Oct 2022 10:17:27 +0200")
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References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN>
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Date: Fri, 07 Oct 2022 15:28:56 -0400
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>> Could be, but the behavior is not documented, AFAICT: the doc seems to
>> suggest that `window-state-put` doesn't touch the parameters that are
>> not mentioned in `window-persistent-parameters` (whereas it actually
>> throws them out unconditionally).
> AFAICT that's consistent with the remaining behavior of these functions.
Could you clarify what you mean by that?
Which other functions and what "remaining behavior" are you thinking of?
> The values of the window where the state is put are completely replaced
> by the values of the window where the state has been obtained from.
That's indeed the behavior of the code, as I pointed it out, but the
docstring of `window-persistent-parameters` says:
Parameters not saved by =E2=80=98current-window-configuration=E2=80=99 =
or
=E2=80=98window-state-get=E2=80=99 are left alone by =E2=80=98set-windo=
w-configuration=E2=80=99
respectively are not installed by =E2=80=98window-state-put=E2=80=99.
"not installed" is not the same as "thrown away".
If we want to keep this behavior, we should document it a bit more
clearly, I think. Maybe that's what you meant by the distinction
between "left alone" and "not installed"?
Also, I think it's worthwhile then to add some hook run before throwing
away that info.
>> I see 3 options:
> I'm still not convinced that window parameters are the best choice for
> keeping information about the highlighted region.
You might be right, but that's a somewhat orthogonal discussion.
I don't think this choice should be imposed by a specific choice of
behavior of `window-state-put`.
> The parameter used here is a conglomerate - 'window-point' is window
> local, the mark is buffer local and which window is the selected one is
> global. But since, as Eli said, we also may want to highlight the
> region in non-selected windows, there might be no better choice.
Yes, I think we'll have to use a hash-table (weakly) indexed by windows :-(
> In either case, please keep in mind that the persistence of parameters
> must be also handled by =E2=80=98set-window-configuration=E2=80=99 though=
that one
> never has to transfer properties from one window to another.
AFAIK the current code works fine with `set-window-configuration`.
And indeed `set-window-configuration` behaves the way I suggest
`window-state-put` should behave:
/* Restore any window parameters that have been saved.
Parameters that have not been saved are left alone. */
-- Stefan
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 7 Oct 2022 08:17:46 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Oct 07 04:17:46 2022 Received: from localhost ([127.0.0.1]:34266 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ogiYD-000677-VL for submit <at> debbugs.gnu.org; Fri, 07 Oct 2022 04:17:46 -0400 Received: from mout.gmx.net ([212.227.15.18]:44203) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <rudalics@HIDDEN>) id 1ogiY8-00066p-DC for 58175 <at> debbugs.gnu.org; Fri, 07 Oct 2022 04:17:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1665130650; bh=X3Hfu2Wk3zsskrj3VSuJzlS40zTNH2MBqywSbgFNKuc=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=igjLJO6z5PthUjUZaXJtH3EYufXl8u+Idn216UaMDzP/gdBj1qXkE9hHi9BY6hJWT b5RZJbLW1IwU/f1foIMyAXOrjS7D7TRoWUpekVC8tdoHnRxg98Ntz6cMouK6/D+tsF 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bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 7 Oct 2022 08:09:28 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Oct 07 04:09:28 2022 Received: from localhost ([127.0.0.1]:34254 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ogiQC-0005uW-AR for submit <at> debbugs.gnu.org; Fri, 07 Oct 2022 04:09:28 -0400 Received: from mout.gmx.net ([212.227.15.15]:33113) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <rudalics@HIDDEN>) id 1ogiQ7-0005uG-7h for 58175 <at> debbugs.gnu.org; Fri, 07 Oct 2022 04:09:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1665130153; bh=mdyBM45b1yLxhKY7InpdyPpkkLQ4B4sEr+Jy9i/QsIk=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=hTQEMFPB+FroMdN7njAJD+g/9YrtgUvya6IcxrH2E6HPMQ573aBUPeNL8GTzpzwQM ppUFxP2rJ/e9bb7i8jX0Nfo2UNZO+ghJc6bmcm1UrPc5+VgKo7ezyraV9bDEkZ/xwN c4PyTGCqatbpTYZeJ418a1VM6VrGReyU0RvOXIdU= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.1.100] ([213.142.97.66]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MlNpH-1p3QJA1GtZ-00ljVg; Fri, 07 Oct 2022 10:09:13 +0200 Message-ID: <0216030f-94a5-35fb-b70c-503acd83a507@HIDDEN> Date: Fri, 7 Oct 2022 10:09:11 +0200 MIME-Version: 1.0 Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay Content-Language: en-US To: Eli Zaretskii <eliz@HIDDEN> References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> <83bkqrv8af.fsf@HIDDEN> <4b64c2c5-4613-c690-d32d-ce21e36faba0@HIDDEN> <83k05eu11t.fsf@HIDDEN> <48874213-cfe4-dc07-fe0a-cb085d6549ef@HIDDEN> <83a669qsj4.fsf@HIDDEN> From: martin rudalics <rudalics@HIDDEN> In-Reply-To: <83a669qsj4.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:9RSb+ckCsdBTde3IGJIBePN1Z48y4Pe+tZ98m3iibQ8TVDecygi 5C2INMbtY3PB7/+mlBXSC2e02w7zJooflGGUrrBKkdqKzXj9zSrmMT8DpKYaeqMURBMAUyj 3ndnW7yt4tF6in6M4WKRpk//qTTWSXE96/B3gneBSk5WhElqY8Y3E6nBZVJ5e6hgzyDXG/H gCRBWviVP4KASFuPcNMsQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:z8mirhCLywY=:ZU7FeXjO9YL66dHiWZpixj YErCmG6Jgo+bGIxbvTL/0pBT+zTVbukdXyNzULCKQ9gFDZrCieMyMH2KOFgvkn4OKxE724Noo eO2EivFlcJRL/hHkO/KB/wouJnoSl+3UCDsIAC3YhZrEqHU+zBhBc4gcqvV9cUnoOtGjW5+Bn gq77AZQHoMKjHERu8JT2PXHLisX0CQx9AKEXRs41ZtLsfSSEOwBkngVrZtWv7ZsDYQ/N/WRa8 /rumaVz0S0ifzJBqSq1ukLeGES9rHx5eEiGPVNYtiL7d4OsjUUD6rbpyGm8fwRFthFqigZw/D LmDRpn/j/W4TC4uGCavooHZDowEJIY7r1Kk8L4ChNlH9tTwtVkfpdz8LBLd3CSQeDT0iclEmT kkvT7Fa7WmkYDMOlh07fvVufc0sFv8f6ZpdPxHqzB4T4sfaiCmv85YpbvW1ysv3l/jbqb/tZ/ QyYxSC2fHkO/cPyRZVFjFJUeQmP3VTRRS2v3WiQkOH3KCMBa/r/YvzEBgrsioOL85t4dkyLgY 2q55kMrvOoMFWwKo6Hl+LWufc8H3EHgzuS8WmFu3myYSnE030oZpR+ZFC3v3ETkpYuYQE41Nw jcMjS3MImUHjmYCuNDTnceaNKnOhTOmTD11koZsmoptqyX0kyRJEW1A+uS3xRBdeQYfoleaDy OiS0pCe3hgqNqO0bItrrkMG8ZhO1/k5/lelykPMnf5mRozgmYqGXvy37TVslnMkkWg8Bjx7Fe gEEXDs8hdSkTUFcwIQGhqBsn7yNBQ/jb3F8NKn/mTvG3iFCqE33k6mvHlDNn53Mq2Sv7hZAtw lOio2gH1LIGgQLi9JxXswNnTFT3EA3jC8x7PteRv0tkydiyhO88RsonLD/NACphZlugifzdPK 2SRzjzqofee5cPoGhUKF1OBqiCYZ8y7ca1R+SnxfIUj0ZUCDQ9lYdWiX+xJVACZVPNB9chQts a4wITDTzWvA6sqZaV+CQuSB1daCm+/xZQzjXcfQb43HLO9SrsSdvfkgHjU24yS06DsOslxh1L 0WWoC1+cI4y9YZEeWxiqEXifmO3WqnYxctuKsymtss8/AEZ3hvhnNC0T92aq+42J5qXZkFiek xHpHp4oEDXbUJENhMxzsknkPOlMXxDNUxsXERyuIBPvvQMg5OESUeCxwhoR4/13dGPq8xctRG flvOE4jP/tyobgyS5McdjGJFZq4waxTjAD9TRNVY2uCxIU9ZriBxSA9ivgBma8U3uE7Wa77ny DoqHvx1y792R0T19/FuOyxu2qYWc6ASbKF9myEhOk5v1LfAXKxIpv44yOPyYBU79LBSosnWfY MoLJGA29UpkKmvMX7MuMXaqcL/kIxQacQ9GzZavgatqhNnAphJFM06qo0Nt4mX8eRWTh/Ge9U w6VgWhry4l/u9XOaDsI6ssYiVZDhzudl6v6eh09rIj2Eomy9Pm/bdRdJk+hgcsyT80cKx/C8P y1O56x7AcKXsc0Z5uGCol6wJ6UGNX0HUPpLKweXwFw+QgJYIWeIOqIeESu34FS3wlU8ZwVAb0 DOAMdCFmYTHiv+iYKoDmLvLChBWZudOHWhUDdv3NLae5Z X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, monnier@HIDDEN, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) > Both results in this scenario are wrong, IMO, so I don't see why we'd > prefer one of them. The one with the persistent overlay leaves behind an overlay in the lower window that is not removed by the region highlighting code. So that gets us back another incarnation of the original bug. > I also don't understand how this scenario could > happen in real life, FWIW. Given the plethora of 'set-window-configuration' and 'save-window-excursion' calls in the Emacs code base (some of them with separate position handling instructions), I'm quite confident that it eventually will happen. martin
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active
mark leaves behind a region overlay
In-Reply-To: <83wn9eu8qu.fsf@HIDDEN> (Eli Zaretskii's message of "Wed, 05 Oct
2022 08:42:17 +0300")
Message-ID: <jwvtu4h40hs.fsf-monnier+emacs@HIDDEN>
References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN>
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Date: Thu, 06 Oct 2022 08:25:19 -0400
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>> We could change the above code so it only sets to nil those
>> parameters that are listed in `window-persistent-parameters`, but I'm
>> not sure if that's the right choice. It might be, tho: it seems odd to
>> just zap properties owned by arbitrary packages without giving them
>> a chance to "say goodbye".
>
> Martin will tell, but I'm pretty sure this wasn't born out of thin
> air.
Could be, but the behavior is not documented, AFAICT: the doc seems to
suggest that `window-state-put` doesn't touch the parameters that are
not mentioned in `window-persistent-parameters` (whereas it actually
throws them out unconditionally).
> I'm sure there are window parameters that will do harm if
> copied.
I'm not talking about copying. I'm talking about leaving them where
they are.
>> Or we could add some kind of hook (similar to a `change-major-mode-hook`
>> but for window state changes rather than major mode changes) so code
>> like the region-highlight code can register itself there to throw away
>> its overlays before a new window-state is installed.
> Why is this cleaner than maintaining a list of "persistent"
> parameters?
Notice there are two notions of "persistent" here.
Let's say we use `window-stat-save` in window A and then
`window-state-put` in window B:
- `window-persistent-parameters` lets you control which parameters of
window A are "persisted/copied" to B. `internal-region-overlay`
doesn't want to be among those copied parameters.
- I'm suggesting we add some way to control what happens to parameters
that were in window B. Clearly, for those parameters in
`window-persistent-parameters` they'll have to be overwritten.
But currently they are all wiped out unconditionally just before
putting the new state, which is a problem in the case of
`internal-region-overlay` where we don't necessarily need to preserve
its value (tho that would work as well), but we'd need to remove it
a bit more carefully at least.
I see `window-state-put` as something similar to calling a major-mode:
it starts by "killing all local variables" (i.e. removing all window
parameters) and then sets up its own state.
I see 3 options:
- Change `window-state-put` so it doesn't touch those parameters not
mentioned in `window-persistent-parameters`. This is arguably the
simplest change and IMO it would make it behave closer to what its
doc suggests.
- Add a `before-clearing-window-parameters-hook`, just like
`kill-all-local-variables` runs the `change-major-mode-hook` (tho, if
so, we should design it such that it's a bit easier for that hook
to make some parameters survive unscathed).
- Add a new variable (or some new special value for
`window-persistent-parameters`) listing those window parameters that
should not be touched by `window-state-put` (i.e. the equivalent of
"persistent variables").
Stefan
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 6 Oct 2022 08:13:17 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Oct 06 04:13:17 2022 Received: from localhost ([127.0.0.1]:58825 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ogM0L-0008PB-5x for submit <at> debbugs.gnu.org; Thu, 06 Oct 2022 04:13:17 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43130) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1ogM0J-0008Oy-DS for 58175 <at> debbugs.gnu.org; Thu, 06 Oct 2022 04:13:15 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:49770) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ogM0D-0002rK-6k; Thu, 06 Oct 2022 04:13:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=M2tmkfBJfjkq9B3PTrqvkFDRjMievzgq79vJGBZS5XM=; b=rQ4KMgQ3suF+ gCjN9kDHV3AQw3sE+XvoxLqUs5k9ZeAbQKF2XXZjFwbXlDER60q7lvkP1DP+mMp9b4d3lzwGfd19X qCjZiHDAxWbJ0K7vMNcBD7KdH1flHvy6cDA9vOFiaUbzqhajj+qse5+hxXvLp9BB6i0p98v4y2fSl kAXivEgrh68GpRG009QY+vrg+YX5KdQQqUSN1q33eP78blRN3ULSsPUgvLunUhbID1ZCwYyN+y/Vp YNkq9xHO1HhK8rdcaAUsuGFMCPqwN8M/cPdobP1KjN0z/gLGwK9DMNgxpBNFxWmMp6Fz24VGufu7U jmd/oC0eTJqSoNGV3Z03+Q==; Received: from [87.69.77.57] (port=4646 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ogM06-00017C-Vm; Thu, 06 Oct 2022 04:13:08 -0400 Date: Thu, 06 Oct 2022 11:13:03 +0300 Message-Id: <83a669qsj4.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: martin rudalics <rudalics@HIDDEN> In-Reply-To: <48874213-cfe4-dc07-fe0a-cb085d6549ef@HIDDEN> (message from martin rudalics on Thu, 6 Oct 2022 09:48:12 +0200) Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> <83bkqrv8af.fsf@HIDDEN> <4b64c2c5-4613-c690-d32d-ce21e36faba0@HIDDEN> <83k05eu11t.fsf@HIDDEN> <48874213-cfe4-dc07-fe0a-cb085d6549ef@HIDDEN> X-Spam-Score: -0.3 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, monnier@HIDDEN, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.3 (-) > Date: Thu, 6 Oct 2022 09:48:12 +0200 > Cc: miha@HIDDEN, 58175 <at> debbugs.gnu.org, monnier@HIDDEN > From: martin rudalics <rudalics@HIDDEN> > > With emacs -Q put the following text into *scratch* > > > (push '(internal-region-overlay . t) window-persistent-parameters) > > (defvar foo-conf nil) > > (defun foo-save () > (interactive) > (setq foo-conf (current-window-configuration))) > > (defun foo-restore () > (interactive) > (set-window-configuration foo-conf)) > > (split-window) > > ;; (eval-buffer) > > > evaluate it and do M-x foo-save followed by C-x o. Move point and > activate the region. M-x foo-restore now gets me two overlays, one in > the upper and one in the lower window. > > Now try again with 'internal-region-overlay' not made persistent, that > is, the first line commented out. The same scenario gets me one (albeit > illogical) overlay in the upper window only. Both results in this scenario are wrong, IMO, so I don't see why we'd prefer one of them. I also don't understand how this scenario could happen in real life, FWIW.
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 6 Oct 2022 07:48:27 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Oct 06 03:48:27 2022 Received: from localhost ([127.0.0.1]:58762 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ogLcI-0007l5-VZ for submit <at> debbugs.gnu.org; Thu, 06 Oct 2022 03:48:27 -0400 Received: from mout.gmx.net ([212.227.15.18]:37601) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <rudalics@HIDDEN>) id 1ogLcG-0007ks-QR for 58175 <at> debbugs.gnu.org; Thu, 06 Oct 2022 03:48:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1665042494; bh=8/uXx/JA5savYjmwQgPAeTPeW0pswPqRayzYGMNYEb4=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=eXrOc12qrJIudZsADcSZMRDvoDS2tLLhB0drNyjOkVS+HHIRthM+fcD9ImqqetKiu MCzinSzPP9+NK4I1fZEmu8eED01OKk2QURz+cNt2FSiC7CB5ytepPNRQOXSFteHvUQ L0UnOMqKdY8fnYwNTgWVFXl4BCplBtBNyFIFjFEQ= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.1.100] ([212.95.5.112]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N5VHM-1pHAjk30fa-016xWc; Thu, 06 Oct 2022 09:48:14 +0200 Message-ID: <48874213-cfe4-dc07-fe0a-cb085d6549ef@HIDDEN> Date: Thu, 6 Oct 2022 09:48:12 +0200 MIME-Version: 1.0 Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay Content-Language: en-US To: Eli Zaretskii <eliz@HIDDEN> References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> <83bkqrv8af.fsf@HIDDEN> <4b64c2c5-4613-c690-d32d-ce21e36faba0@HIDDEN> <83k05eu11t.fsf@HIDDEN> From: martin rudalics <rudalics@HIDDEN> In-Reply-To: <83k05eu11t.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:B4vH3MhZv8tARnLBfdG2rcoiCQx7rH0wPhVPlwPcyyLlTLYjxPv +443cbL2M5nn/c11472w16c2K8kBMw6CKEwnQC2TH7s0HbBge8mGby8cvCtTPec6TZTQwbo V8sd6lwEvN8I1yUSK+gGMop9WS53T0f+f6uVip4h6T9WaMwynpqdgYoP6xQZVuOa9T51Jn1 8ViuAAsnP40r0Ny50UNCA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:lGDiW08skIQ=:xd3tSfdgW8se58tQ5n25+u qVjLn27y8Fvd2MJp8mv02LJni8PCPvsoYMtCcHeAPYuIGljSE9Z/RK7JqdfYyR65wt9Oe5QL5 maBEWVwoJa93vPm3mx/R36ySjWhFd1T56Avs8/LgLoOpl1nhwrd3A7OD4M81fmk7mavA3pTIN 7O/XJdK41gyecV5t1q+XmZWwSxboMPX5RVNs6+I1ZkoKOtnL4ugsnMFJLwDT9iqgOoIaCtpH9 OqvqkXMtSszTzuTEPrSxuglH2dSvzcmRI3qsPxLP1ECDk0mNitwCtdLmxIr1xEzZQ22+e/Sw+ R2ZSkviSPfzisoXEmEvpOhq70GtA6v+yEWaEhERdXpo3TeR4oovwjvnwQM0Dsm187GdeWsFpq 1hLrb8nrSdS+ibGS7XZPEV55WDwBgyJ+O9w83gbk5JqJEAfjFl1K3f9Jd9IZudyYGrUC5fcS5 s4KTZzKqTcgwyb/xNXrdJGnEghoYx79sBNIz6W7RjbzwSARaCrgLH3kwoaeJRRJdP7ApnSZOY 42siPEFzwMJ9HBsCioIAXRV/7gAXIGJiMhWI0NIGAN7USGVpGv1cd7AEvQ6McwnXAKZDD8pCV iO15Weaxx7qO02TvaCD8p5UWr7qO9kWa41J7oTgBi+ap6RTMAtFYop7qxrYpdqQ10ZQYrPlcD CxYZ54FMK+8R8YW3j/Th/1L5nyHGg4YgUTtipaUrsFDMFcu3V/mX3Sr6lbrSx+wnMh7o6bNyx mJcJLueJR5IouzGpWikjjU59n9aaVo7D4yK0RbnLSX4uhS1oqyrXf8RisIrIHgwTNR8dZI1Z4 imgQJ79zmd/4JRqALRFa++ivOXL92TxkZean/jL2w3FPYW2CwpMPSQGuuKN0ZqlhXXX1FXcPX ioRN9YrIKZsmW8o+OnrkyKZW2OsubUQWxrPnv/ElWc1xzdBjAjzvu1rg2yOAR8o/c758S1E5b C3k0jJpJ3cKmPKpBHyTm28EgX8I6F3U0vYNNwp2RNkgKTfsA2A8dafmSEnpHyF9ss4Y9KszRK aMrw9mKxWNr31GoGMPPZIs3m4TAG2+aqf3axz7p0lhhYKxg/w2E44pwp5ApY1RugfHZ+MHq2N GFUG4DRokGx6/JIvKJQdOGkDwTAbLL3ub4WS3Wf8wqQGYzy+Kr7Mw4GwP11F+JzQYvpEGqoIi lCgrpiFeYSN49BeVvOy8bRAv1Fu/JB/PEYonVfH5FE34YxVxTTZ3/u8/RdRcXRnFQ9zh+YQ0Q daaLvqAxIfC2Bv5i3uijVN7N+xDzi/+x5r8uKaMZBiv2/FrFAxpXNphjWe6tx5dIfPv1iAoca GrPchUTRxFMa+TpzbC01HuszDYvJs9dF6WVv5vl3n/amiANl5rsz7VnSyMmpuxg5iibEkA/7z h5eYWICs/XcbaraRrmnJDMzURcV50JMstT1PL5jtUKr+mDM+LDj2mTrdJkVGG/6Ar7eb9m3nK S01+/ycF1+0lfmzuKbwlfUbdlNIOTfUfa936qjm+8S5v9R6s6UycKPhjtxpa/utgrfhm6zTlw ib56kT+b8YeK60s+vUSDq/LjuU/yLhhnW8amyHSQph4AC X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, monnier@HIDDEN, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) > In the scenario described in this bug report, point is copied to the > new window, so the result is as expected. Deactivating the mark also > does the expected job. So it looks like adding > internal-region-overlay to the persistent window parameters is a good > solution in this case. I suggest that you try that, maybe you will > see some problems that I missed. With emacs -Q put the following text into *scratch* (push '(internal-region-overlay . t) window-persistent-parameters) (defvar foo-conf nil) (defun foo-save () (interactive) (setq foo-conf (current-window-configuration))) (defun foo-restore () (interactive) (set-window-configuration foo-conf)) (split-window) ;; (eval-buffer) evaluate it and do M-x foo-save followed by C-x o. Move point and activate the region. M-x foo-restore now gets me two overlays, one in the upper and one in the lower window. Now try again with 'internal-region-overlay' not made persistent, that is, the first line commented out. The same scenario gets me one (albeit illogical) overlay in the upper window only. martin
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 5 Oct 2022 08:28:45 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Oct 05 04:28:45 2022 Received: from localhost ([127.0.0.1]:55818 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ofzlk-00029n-Vg for submit <at> debbugs.gnu.org; Wed, 05 Oct 2022 04:28:45 -0400 Received: from eggs.gnu.org ([209.51.188.92]:36222) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1ofzlh-00029a-T0 for 58175 <at> debbugs.gnu.org; Wed, 05 Oct 2022 04:28:43 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:48246) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ofzla-0001Df-PP; Wed, 05 Oct 2022 04:28:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=JWJ0qFjxy+LJ2GCp5DpyxpNEAKGIrIyEtuPqTwp4dR8=; b=ODuSBSY04KM3 PiFSE8Zlad2R86I27sAlI/MGlt3uGlrh+DTONkqlLoHM0SOzz4j1rlpIMDxav/+pL7iyLd2nDfQyi rYOeBx6DxFuf4CJ6KxYlhbFz0S54prvKtzGSUI3nRL9Ynqt31xFcnMvB4BGdToDHleH+8WhmE4frM +2FwuS2sR/CXAvpY7rsaDWG6tdGiv7+/AgiRAcvvNhbnwF4IjJrIGd3Nsq1jo9BxhVAzQ9QWEKFWw wNXeqtFVdIZ5clqwcFCy9BOcVdb9VNJ2nsJ0vhdQnYqHQjiqKXWnKcCR9uN87TljYIVXCRxY9+niD gsXmCZT0hCN450adhGAoDw==; Received: from [87.69.77.57] (port=4342 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ofzlZ-0003ib-U1; Wed, 05 Oct 2022 04:28:34 -0400 Date: Wed, 05 Oct 2022 11:28:30 +0300 Message-Id: <83k05eu11t.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: martin rudalics <rudalics@HIDDEN> In-Reply-To: <4b64c2c5-4613-c690-d32d-ce21e36faba0@HIDDEN> (message from martin rudalics on Wed, 5 Oct 2022 09:36:40 +0200) Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> <83bkqrv8af.fsf@HIDDEN> <4b64c2c5-4613-c690-d32d-ce21e36faba0@HIDDEN> X-Spam-Score: -0.3 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, monnier@HIDDEN, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.3 (-) > Date: Wed, 5 Oct 2022 09:36:40 +0200 > Cc: miha@HIDDEN, 58175 <at> debbugs.gnu.org, monnier@HIDDEN > From: martin rudalics <rudalics@HIDDEN> > > Now keeping the mark active when restoring a window configuration is > problematic in the first place since it restores the mark from the saved > state while taking point from the current state possibly ending up in > some arbitrarily specified region. OTOH deactivating the mark in such > case is hardly feasible because restoring a window configurations should > be barely perceptible for the user. In the scenario described in this bug report, point is copied to the new window, so the result is as expected. Deactivating the mark also does the expected job. So it looks like adding internal-region-overlay to the persistent window parameters is a good solution in this case. I suggest that you try that, maybe you will see some problems that I missed. > > If the former, I guess the above should be done > > globally when Emacs is dumped? > > I would try to get rid of the window parameter used here. Active region > highlighting is an activity that affects the selected window only and > not any window. The 'window' property of any overlay used for it must > always refer to the selected window and not any other window. So I see > no use for window parameters here which are mainly useful for overriding > a global variable or the local value of the buffer shown in a window. So you are saying we should redesign how region overlay is implemented and managed? I'd prefer not to go there. > I'd rather use one global overlay and move it (by setting its 'window' > property) whenever 'window-selection-change-functions' tell me that the > selected window has changed. But maybe I'm missing something here. highlight-nonselected-windows, I guess? How can we have a single global overlay and still support that option?
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 5 Oct 2022 07:36:56 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Oct 05 03:36:55 2022 Received: from localhost ([127.0.0.1]:55785 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ofyxb-0000sd-JJ for submit <at> debbugs.gnu.org; Wed, 05 Oct 2022 03:36:55 -0400 Received: from mout.gmx.net ([212.227.17.20]:46727) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <rudalics@HIDDEN>) id 1ofyxZ-0000sN-4W for 58175 <at> debbugs.gnu.org; Wed, 05 Oct 2022 03:36:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1664955403; bh=7ducdzYF0e4UoIBANhpJURoiUrnwYULEwC1Ei0MWiks=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=NiQErfS6qO03LUePiZhYtW/Ax9lJNKKkUSlWgGxvBquFK7MebwN+JYsFAcw3kz2k3 zXA/SXju4pMPh2hQuexyZ4tpDrtFwfyuo2ppbOYfSH2XrFoXFvxRnp/+n/aS45r/U7 ctlqdeAszszvmLI+fqM5P+wAl4/0tw99ns+MIHgg= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.1.100] ([213.142.97.113]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MryXN-1p0gne0AZJ-00nuef; Wed, 05 Oct 2022 09:36:43 +0200 Message-ID: <4b64c2c5-4613-c690-d32d-ce21e36faba0@HIDDEN> Date: Wed, 5 Oct 2022 09:36:40 +0200 MIME-Version: 1.0 Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay Content-Language: en-US To: Eli Zaretskii <eliz@HIDDEN> References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> <83bkqrv8af.fsf@HIDDEN> From: martin rudalics <rudalics@HIDDEN> In-Reply-To: <83bkqrv8af.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:9G4oQ7VtltD63K4d0RAnlaIGuaydTTcvnnnDmQeie7uWp+Hl1g5 kPXWrbKI/s8ko1ubx+nppylpQCplH+SZBDL/wmlWd4MOsBSQgYEfG6PP7Dvv++jotrslT7A NWxfCqKlqa1oP7+GBjnS2dK2UwR02VxuZ5ppYgSzJZH7SgX7D2fBS49ppCJaNpf2kY6eQ28 a1zoG6U1rAziwYID+ehfA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:/2SOpUyai5I=:O6LsU83NVh5ckBEIRdeddB pdBnot1T0PNKP2uNGoCR5M97pNgyeljZHKmxZaDWoF3RERMGtnbsBK5a0ECPcyrAAxVKXubbH 1om+mef3Nxo1YRCqZhXtaoniBA5sOabxHt9s2sFKy+EGUc2B9th/wsJxHbGqUlH3qW8xsZVlk QJ8oAprTHUm/gMUvuIQkTv7hhHp5dJVAf4J4VZSpdoAzV1U4leW6Ha8BSBXeWvK5COnbvvaFX kEsRqiRb8j5IKEyaUL1d7vzZnNY00ocnkE1ZXW958lEhJmhyTm/hkSO1kx+VNCFTXbB3LcuJ8 ivhxQZb+dwGSW7WQ8BWjnRF6NSxD8urT7fyo2y4CfWz6HAzblnDMbI/OKtTANFpLu2QYXIoHb w5hJvCTkOIkDZHQsGFcTRHrX4/wBsRyokrbOqDhCskXIw/UdJ8TgNCGpH/U+6utsp+fsp3SAd UPmGdZMtZUe4yvNhYb+3jDvQfyrGhTgrEgJBzTWlIn+M8XeO59awAjkoTO9mVSy40zTcbnv9n 6Dr9G4ZvzJiHogIntvkDO8LAhUusRZDFqreg9VnZ1gOP0zSTVYXFiNT3dnAkgSwzNI21pF86G DtqPSEFEmK/LpZ9eJDD7wcA7TBFSc7IO8qf1CpVNhMSUGNnk9RQnbRHaYkI92LBRcZSJxIdeE l6QRZWKLbIqUg4xqo7fSmKBq+JzAsv7mG74COYCi1FghMSXRbcCBpXUXXMm28+m4nirvb3aBL u5CzLGZ2bf9EK4ezmI+M7psD8VnOA7RpThj3LyYP2wI3gsOfAKFfL4xboZttigmpYXFsZWLx6 w8pM6u7jFx4Ji3lO8nCKREOJJz/9vrA2Kz8yHrgJGyi5CaT8KguPuqeDczWH2uNdfF/LcSo6F InOESyOoUqHfWBKeocBWLK7v6uoaDzYblqLX3450tssk4uqmjXfPpM0TbppXJqzE5Rn7laZ9D tUw24S20Pd2kmMaPRum3hQ1YuQ0EgM0Er0RnVyekBzhdxt9YbQg7MOORPJDBHGT2Dr/ymGZH7 7cRC5NOzAuiFqxxH7girItmZDIGNpbyAERDj6tg2v1E+/JyRhScOOHTfD/YaP8E9gEjlBfRTQ TL17n1PAmHmCL6zRzDwJqrVwz6tN4vFy7G2MJx8PWDmi7y+QI0s39R8OWN6irsiNRnm/m79OS 7/x+GTFVn5WGlpGbRBzRQoLhCu X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, monnier@HIDDEN, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) >> (push '(internal-region-overlay . t) window-persistent-parameters) > > Thanks. Does this affect only window-swap-states, or does this affect > anything else? It affects every use of window states like saving and restoring the desktop as well as saving and restoring window configurations. Now keeping the mark active when restoring a window configuration is problematic in the first place since it restores the mark from the saved state while taking point from the current state possibly ending up in some arbitrarily specified region. OTOH deactivating the mark in such case is hardly feasible because restoring a window configurations should be barely perceptible for the user. > If the former, I guess the above should be done > globally when Emacs is dumped? I would try to get rid of the window parameter used here. Active region highlighting is an activity that affects the selected window only and not any window. The 'window' property of any overlay used for it must always refer to the selected window and not any other window. So I see no use for window parameters here which are mainly useful for overriding a global variable or the local value of the buffer shown in a window. I'd rather use one global overlay and move it (by setting its 'window' property) whenever 'window-selection-change-functions' tell me that the selected window has changed. But maybe I'm missing something here. martin
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 5 Oct 2022 05:42:30 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Oct 05 01:42:30 2022 Received: from localhost ([127.0.0.1]:55655 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ofxAs-0006Q6-3f for submit <at> debbugs.gnu.org; Wed, 05 Oct 2022 01:42:30 -0400 Received: from eggs.gnu.org ([209.51.188.92]:36786) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1ofxAq-0006Pt-LV for 58175 <at> debbugs.gnu.org; Wed, 05 Oct 2022 01:42:29 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:40006) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ofxAj-0008Qk-BK; Wed, 05 Oct 2022 01:42:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=Hf9wOUrh6vvFffIUZ8D4HlBy9GmwtPGSeUtMRGJDPws=; b=WBrW/KNQCL1L 6Jfh4pKaOswspVaETFlCc3x+bVednMtOV815dWuTUcd4AIuO+SAVrrZtJM3az170ckab8eZTuF5Np ZI4jC0sIfg+V+PFEPwKgTdIz+pVF+ZE5xJB9x1rm7deM2F6btuD0xTJlDzzQOxYFSfd2qtVqFJEAO tgKpLH7nvdOOweeewkVE/YKw9Rt8WeDLTus7EJC1XMDI+fWimLDbm0qxnu0DEGkjs6QQ9MEJdLv0i YJuYTrGShcim+xT4JV+KYdZHb8mf0eIXlibSeWyxXs6hUsdb7VaMgSa/+j+nDlbWQPpRA0eMF/Iyx JeoeWGX2yHLlrN6oUxkBnA==; Received: from [87.69.77.57] (port=1395 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ofxAi-0003h3-MZ; Wed, 05 Oct 2022 01:42:21 -0400 Date: Wed, 05 Oct 2022 08:42:17 +0300 Message-Id: <83wn9eu8qu.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stefan Monnier <monnier@HIDDEN> In-Reply-To: <jwvsfk3pa14.fsf-monnier+emacs@HIDDEN> (message from Stefan Monnier on Tue, 04 Oct 2022 17:25:13 -0400) Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> <83bkqrv8af.fsf@HIDDEN> <jwv4jwjqr8g.fsf-monnier+emacs@HIDDEN> <jwvy1tvpam8.fsf-monnier+emacs@HIDDEN> <jwvsfk3pa14.fsf-monnier+emacs@HIDDEN> X-Spam-Score: -0.3 (/) X-Debbugs-Envelope-To: 58175 Cc: rudalics@HIDDEN, 58175 <at> debbugs.gnu.org, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.3 (-) > From: Stefan Monnier <monnier@HIDDEN> > Cc: martin rudalics <rudalics@HIDDEN>, 58175 <at> debbugs.gnu.org, > miha@HIDDEN > Date: Tue, 04 Oct 2022 17:25:13 -0400 > > ;; Reset window's parameters and assign saved ones (we might want > ;; a `remove-window-parameters' function here). > (dolist (parameter (window-parameters window)) > (set-window-parameter window (car parameter) nil)) > > I don't think it's right to add `internal-region-overlay` to > `window-persistent-parameters` since we don't want/need to store those > overlays in window-state objects. > > We could change the above code so it only sets to nil those > parameters that are listed in `window-persistent-parameters`, but I'm > not sure if that's the right choice. It might be, tho: it seems odd to > just zap properties owned by arbitrary packages without giving them > a chance to "say goodbye". Martin will tell, but I'm pretty sure this wasn't born out of thin air. I'm sure there are window parameters that will do harm if copied. Look at the list of window parameters in the "Window Parameters" node of the ELisp manual, and try to convince yourself that you want to copy all of them by default (we currently only copy clone-of, AFAIU). > Or we could add some kind of hook (similar to a `change-major-mode-hook` > but for window state changes rather than major mode changes) so code > like the region-highlight code can register itself there to throw away > its overlays before a new window-state is installed. Why is this cleaner than maintaining a list of "persistent" parameters? > Or we need to change the `redisplay--(un)highlight-overlay-function`s so > as to keep their overlays (and similar info) elsewhere, probably in > a variable rather than a window-parameter since window-parameters can > disappear without warning. Maybe. But why complicate a mechanism that is already extremely complicated and hard to understand for a bystander, and needed several fixes until we got it right? The use case in this bug report is pretty marginal, so much so that from where I stand we could legitimately say "this is not supported". It hardly warrants making questionable changes in mechanisms that are so central to routine Emacs operation. Btw, if we do want to consider changes in the region-overlay machinery, then how about having redisplay--unhighlight-overlay-function clean up by deleting overlays whose buffer is nil or dead? That would at least avoid leaving around "stale" overlays that were once the region, which is what happens in this case.
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active
mark leaves behind a region overlay
In-Reply-To: <jwvy1tvpam8.fsf-monnier+emacs@HIDDEN> (Stefan Monnier's message
of "Tue, 04 Oct 2022 17:03:58 -0400")
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>> IOW, I suspect the bug is in `redisplay-(un)highlight-region-function`
>> and adding `internal-region-overlay` to `window-persistent-parameters`
>> would likely just cover it for that use-case but it could
>> reoccur elsewhere.
> Hmm... then again not. Still thinking about it.
I guess it boils down to whether it's OK for a function like
`window--state-put-2` to "unilaterally" set window parameters to nil as
it does in:
;; Reset window's parameters and assign saved ones (we might want
;; a `remove-window-parameters' function here).
(dolist (parameter (window-parameters window))
(set-window-parameter window (car parameter) nil))
I don't think it's right to add `internal-region-overlay` to
`window-persistent-parameters` since we don't want/need to store those
overlays in window-state objects.
We could change the above code so it only sets to nil those
parameters that are listed in `window-persistent-parameters`, but I'm
not sure if that's the right choice. It might be, tho: it seems odd to
just zap properties owned by arbitrary packages without giving them
a chance to "say goodbye".
Or we could add some kind of hook (similar to a `change-major-mode-hook`
but for window state changes rather than major mode changes) so code
like the region-highlight code can register itself there to throw away
its overlays before a new window-state is installed.
Or we need to change the `redisplay--(un)highlight-overlay-function`s so
as to keep their overlays (and similar info) elsewhere, probably in
a variable rather than a window-parameter since window-parameters can
disappear without warning.
Stefan
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active
mark leaves behind a region overlay
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Date: Tue, 04 Oct 2022 17:03:58 -0400
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> IOW, I suspect the bug is in `redisplay-(un)highlight-region-function`
> and adding `internal-region-overlay` to `window-persistent-parameters`
> would likely just cover it for that use-case but it could
> reoccur elsewhere.
Hmm... then again not. Still thinking about it.
Stefan
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active
mark leaves behind a region overlay
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>> > Looks like the internal-region-overlay window parameter, which is
>> > important for correct workings of region-highlight, isn't copied
>> > correctly to the other window as part of swapping state, because its
>> > value ends up as "overlay N in no buffer", i.e. the overlay's buffer
>> > is lost in transition.
>>
>> If you want a window parameter to get copied when swapping window states,
>> you have to explicitly mark it as "persistent". For example with:
>>
>> (push '(internal-region-overlay . t) window-persistent-parameters)
Hmm... I must say I misunderstood the report when I read it originally.
Now that I see a bit more clearly what it's about I wonder why we'd have
to do something special (w.r.t `internal-region-overlay`) for
`window-swap-states` compared to what we do (i.e. nothing at all) when
we do `set-window-buffer`.
More specifically, AFAICT the code that uses `internal-region-overlay`
just tries to reuse that info to try and reduce memory churn, but it
should work correctly even when `internal-region-overlay` points to the
wrong buffer or even if it's not an overlay at all.
IOW, I suspect the bug is in `redisplay-(un)highlight-region-function`
and adding `internal-region-overlay` to `window-persistent-parameters`
would likely just cover it for that use-case but it could
reoccur elsewhere.
Stefan
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 4 Oct 2022 16:54:48 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Oct 04 12:54:48 2022 Received: from localhost ([127.0.0.1]:55065 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1oflBv-0003nN-Vh for submit <at> debbugs.gnu.org; Tue, 04 Oct 2022 12:54:48 -0400 Received: from eggs.gnu.org ([209.51.188.92]:55772) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1oflBs-0003n8-Vi for 58175 <at> debbugs.gnu.org; Tue, 04 Oct 2022 12:54:46 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:59322) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1oflBl-0008MU-Ti; Tue, 04 Oct 2022 12:54:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=+pltLGCRCI6uUG+ijL6xlrctWtzDWwh7RLdzYwwW6wU=; b=sCLaoK4rEQU3 W1FL5BUwK6E2YDag3qyOObnujjqhJZlG7ozlMsMgSMDy8+gv7FKOzqY9dPaP4eMHhrw3vUl/f5uqQ Tc/3BQN1HiujbowhkJdvxlrgnfaNsd1nXb5Kyd+9u9fx7+PfJPmUABIsKNSWLTPU7rRp6SRva0db4 llEYBmEnnaHTSmLTP4EB0epF4Fo7lY0o3A0H7z6jckJt6UbH9qe4Jwd+eM21q8C7E5JeTxVw+5eJ/ KBKEyAWme19GO30DJ9OaG/hN+Ai/khmc3E/n+tG7zONwuaVj5I1TggCOklmc3FFSSQJ++O02sHiDF kqw12cMv/G+18fWuz6+ohQ==; Received: from [87.69.77.57] (port=1449 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1oflBk-000085-SX; Tue, 04 Oct 2022 12:54:37 -0400 Date: Tue, 04 Oct 2022 19:54:32 +0300 Message-Id: <83bkqrv8af.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: martin rudalics <rudalics@HIDDEN> In-Reply-To: <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> (message from martin rudalics on Tue, 4 Oct 2022 10:23:49 +0200) Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, monnier@HIDDEN, miha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Tue, 4 Oct 2022 10:23:49 +0200 > Cc: 58175 <at> debbugs.gnu.org, Stefan Monnier <monnier@HIDDEN> > From: martin rudalics <rudalics@HIDDEN> > > > Looks like the internal-region-overlay window parameter, which is > > important for correct workings of region-highlight, isn't copied > > correctly to the other window as part of swapping state, because its > > value ends up as "overlay N in no buffer", i.e. the overlay's buffer > > is lost in transition. > > If you want a window parameter to get copied when swapping window states, > you have to explicitly mark it as "persistent". For example with: > > (push '(internal-region-overlay . t) window-persistent-parameters) Thanks. Does this affect only window-swap-states, or does this affect anything else? If the former, I guess the above should be done globally when Emacs is dumped?
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 4 Oct 2022 08:24:03 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Oct 04 04:24:03 2022 Received: from localhost ([127.0.0.1]:52399 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ofdDe-0006E3-Vo for submit <at> debbugs.gnu.org; Tue, 04 Oct 2022 04:24:03 -0400 Received: from mout.gmx.net ([212.227.17.20]:45887) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <rudalics@HIDDEN>) id 1ofdDd-0006DX-A3 for 58175 <at> debbugs.gnu.org; Tue, 04 Oct 2022 04:24:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1664871831; bh=2UW/nfYggz4zdTiO49c7HicdCpZfG+Xcc7A64mi34S8=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From:In-Reply-To; b=AH8Cc6nZWYmK1VAskgbAz+BXDTm7E8GzbIMmrpBrlwbuSOFqBXk0Alyyo7wGf+O5D UKCH7DIp6MwvbLqpu2FhJY/dL5Nsa3QO7c2VgJSDovlBqtnJfjKPM8IBoyURneMK2W NTQi1TikH4P6SJMAE0zxdcS3R2fuWG386mUDm0MM= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.1.100] ([46.125.249.89]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MA7KU-1oU2dp2x5O-00BZrg; Tue, 04 Oct 2022 10:23:51 +0200 Message-ID: <a7948abf-9643-3856-fbfc-4c63961da2ad@HIDDEN> Date: Tue, 4 Oct 2022 10:23:49 +0200 MIME-Version: 1.0 Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay Content-Language: en-US To: Eli Zaretskii <eliz@HIDDEN>, miha@HIDDEN References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> <83fsg6186y.fsf@HIDDEN> From: martin rudalics <rudalics@HIDDEN> In-Reply-To: <83fsg6186y.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:26cSwD5cZmHbLit+pcm9l/6SV8iAxCLJLZKKyLQh0lkqfJPPdzU dY7hKEkbjRRZSzEoRSu/WRFROZY8g7rqFQac5GXF4G7vyNMJEU2THrL9z7jmw2KVSasC8y4 /xInLs8MMXmAOgu38AL0ZSeJP6+/FDtRSStFUjyt+tSjO8nVMvWwxDq0I8tgxJX6rpsJJ0+ GqgO+Sxvk34Cg8NHJBB3g== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:qrykIaHQANY=:YPEX4QzmJ035o7DjYsMfxk /hRB0Al0eNMI/xDYajxsQTV7RRrOh/LQiR4Ql7AWKt/LwmxJOUhonsI5DBRo1ZHFW1oLWjvq2 v47tb29AJ1tmHp8TFOAMFHBvzHxwugbcRjz0UZEOEWQB0Wpv7VfnG+GJywjblBwx5iGrVlTDk ooxbp2iVbRSabwwF0Y1zB0ItKuTJ8x0NRbjAZez/9/EY0Q3xXapBV9keEURaSmfyzgUd2H30r 5xKWbS7GQrycQEizS/Yh5HNHAL5pq6ZujV1f/gA6p8aBu4XcUxvmEuuES04XfWpNEL4NYdaX1 jfqvsQB/MynkL726H3/Jimf/C7LiGCK8HjurAVsuHltYSYNk/ntM+8g3Rzz6bL1vOBuZ9R/Ae sBGUKJqoeED1JsAKoGolOeiC32vHNXYnT14pP/UvaXHMPKT9fQ3tJLQ4/5Nru7qD4hxaqx4SK HI46WmJt9SWUEReA+E61bKWdQ13kqtycGEj59wFpSSSBwy9nQjGHUFWakGuMdhcMe3FwYVJwh l3+xNAAYTiHV8cj+Pb/U83ulqNZIJ3xY8Fpe3iYN544VJgo/04TIuyZC1vaAltLwG6mUxU2Sr flEvrdQVHcmVfN4JIdh7LwMOOWNUpDgZeo+CdWMuK999t81HDPBcqcSfRPgoDRGfFY9xSsWhr p1KUsl34Wga4zFgjnECx6u6PSZOLxfzFQN4V8+VX1k45cQ46xk4y7E3t5gqt3/sCo18WvOBbj ovs+QMZ9NURWqY5Pr3ekEKYqmkgrIBe06z69O6VTmj3H2UaQy4GijXl/B1ItKT24kG8Yn9aKn gt/kuMHhxJgyGyHeqZ3Rvpsp93pHYpjlxazo0QVL7UlYo7C196bOFZ7IndKaB3aKeEBSshal+ qT7Y+mos7qp/so7vAplZSkIkqnynlWle1xvMj3LlmYN85474A4D223cbYgeYCcroaOC+4C+mj e/EQBTWVwTXhlUQQqk8GaHtGqW77jc3YpLpxcH0oMCjsm6P2IFfyuFu0uDJZvv3CK5+xMP+jY XFCd5VsHAWwPMkayhZQZ0ad2X+gl61BJ+2cgCn/UKNKFyNYoo0T1Q7TLjhPf2mk1A6zF8IKLB E7Y3q+0zFIuNaPJQeEizXoaa6OkGRVb7yn+a9qGRTX2kSEuG//i9nHXXKH9OvzTfwuxmEersS /IaR0z3b/ZWXJhPQT5YNZhmyzW X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, Stefan Monnier <monnier@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) > Looks like the internal-region-overlay window parameter, which is > important for correct workings of region-highlight, isn't copied > correctly to the other window as part of swapping state, because its > value ends up as "overlay N in no buffer", i.e. the overlay's buffer > is lost in transition. If you want a window parameter to get copied when swapping window states, you have to explicitly mark it as "persistent". For example with: (push '(internal-region-overlay . t) window-persistent-parameters) martin
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 2 Oct 2022 16:50:30 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Oct 02 12:50:30 2022 Received: from localhost ([127.0.0.1]:47904 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1of2Ag-0007jV-6G for submit <at> debbugs.gnu.org; Sun, 02 Oct 2022 12:50:30 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43838) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1of2Ae-0007jA-J5 for 58175 <at> debbugs.gnu.org; Sun, 02 Oct 2022 12:50:29 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:51300) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1of2AY-0008OW-4C; Sun, 02 Oct 2022 12:50:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=JRukxhDc8X96i3ZFjB74h40bljlSnofs/upLjvbcwqk=; b=ZURk6q7k08SL dWBPbjWRVD+dIZ4pqBkFeVG7FrY66ruawBLfdZsvf9F1LpA4QMOCLH5cwSmIa/AFIgYABEM04GX3+ 0my9jteqfEN0Xn8qTH9fPBA0IvJSjNEiOcJDqoNqaRQ8WOghOLl2GRLhi1z1cKFQwenAfF3eYILV2 Q6X5YgyIrAYWiG0heoj0kehjr3tpxZXeTtKKMl50uSSTIj/BTkRGiOzhiCOVh8YLol2tCkzVBNwWR ccRUVlZ8qGDT9N3WTQMxau9nEWjQsGPo2IhPPzpX9Hs5MXuaBjUNTtCbpG5mQBs1lt6m0HDpDY3ec nOuwL1ld8Q7hxvLboQU81A==; Received: from [87.69.77.57] (port=1958 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1of2AX-00054m-JR; Sun, 02 Oct 2022 12:50:21 -0400 Date: Sun, 02 Oct 2022 19:50:13 +0300 Message-Id: <83fsg6186y.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: miha@HIDDEN, martin rudalics <rudalics@HIDDEN> In-Reply-To: <837d1mf0op.fsf@HIDDEN> (message from Eli Zaretskii on Thu, 29 Sep 2022 22:19:34 +0300) Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> <837d1mf0op.fsf@HIDDEN> X-Spam-Score: -0.3 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org, Stefan Monnier <monnier@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.3 (-) > Cc: 58175 <at> debbugs.gnu.org > Date: Thu, 29 Sep 2022 22:19:34 +0300 > From: Eli Zaretskii <eliz@HIDDEN> > > > From: <miha@HIDDEN> > > Cc: 58175 <at> debbugs.gnu.org > > Date: Thu, 29 Sep 2022 21:17:56 +0200 > > > > >> 1. 'C-h e' to display *Messages* in a new window > > >> 2. 'C-SPC C-n' to mark an active region > > >> 3. 'M-x window-swap-states' > > >> 4. 'C-g C-n' to deactivate the mark > > >> > > >> Notice how the region overlay stays there. > > > > > > "There" where? > > > > In the *GNU Emacs* buffer, where we have originally marked a region in > > step 2. > > > > > What did you expect to happen in the above scenario, and why? > > > > I expect the overlay to disappear after deactivating the mark with 'C-g' > > in step 4. > > Ah! Now it's clear what this issue is about. > > The problem is that deactivate-mark doesn't work in this case, for > some reason, and neither is setting mark-active to nil. Looks like the internal-region-overlay window parameter, which is important for correct workings of region-highlight, isn't copied correctly to the other window as part of swapping state, because its value ends up as "overlay N in no buffer", i.e. the overlay's buffer is lost in transition. Martin, Stefan: any suggestions or ideas?
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.Received: (at 58175) by debbugs.gnu.org; 29 Sep 2022 19:19:56 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Sep 29 15:19:55 2022 Received: from localhost ([127.0.0.1]:39617 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1odz4d-0006CY-Lc for submit <at> debbugs.gnu.org; Thu, 29 Sep 2022 15:19:55 -0400 Received: from eggs.gnu.org ([209.51.188.92]:56650) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1odz4Z-0006CK-MS for 58175 <at> debbugs.gnu.org; Thu, 29 Sep 2022 15:19:53 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:33122) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1odz4T-0006px-JX; Thu, 29 Sep 2022 15:19:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=E8luZrCuXgJ1MXyrNMhdOQ5FG3uSydMbW/+v4sCHq/8=; b=p3/pADrtmi9m WHoIfC2yvFcFV0FytG9LcMYFckfM1IdSKSwZUMMjA7B+J1sz8GF9pS1DZw9/2iSeTISnhov0guuJb GWeusifTYdeHZlLM4flzkfsPl/7EROg7/3KlCZz9jxR1APHMvtWUjLM4T1ifi1nDkH7FkjIzH19Tr /T7qDjolFzvfY2l6lfNklUP/3ZevOLYycHmv4MzRPrED5CUeh5NXV5jHojoNynPbJhVDfbmOrcANV nSHoiPLl8j/7rdULP2BTbbQPK6qcUVg/c8JX2tVDfht8innfVQUpHyJawQzSUgbUlc8afLrMM8TPV oh0EwWxQtIiQ73mzbrtynw==; Received: from [87.69.77.57] (port=2532 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1odz4S-0004eb-5z; Thu, 29 Sep 2022 15:19:45 -0400 Date: Thu, 29 Sep 2022 22:19:34 +0300 Message-Id: <837d1mf0op.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: <miha@HIDDEN> In-Reply-To: <8735cauh0b.fsf@miha-pc> Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active mark leaves behind a region overlay References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN> <8735cauh0b.fsf@miha-pc> X-Spam-Score: -0.3 (/) X-Debbugs-Envelope-To: 58175 Cc: 58175 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.3 (-) > From: <miha@HIDDEN> > Cc: 58175 <at> debbugs.gnu.org > Date: Thu, 29 Sep 2022 21:17:56 +0200 > > >> 1. 'C-h e' to display *Messages* in a new window > >> 2. 'C-SPC C-n' to mark an active region > >> 3. 'M-x window-swap-states' > >> 4. 'C-g C-n' to deactivate the mark > >> > >> Notice how the region overlay stays there. > > > > "There" where? > > In the *GNU Emacs* buffer, where we have originally marked a region in > step 2. > > > What did you expect to happen in the above scenario, and why? > > I expect the overlay to disappear after deactivating the mark with 'C-g' > in step 4. Ah! Now it's clear what this issue is about. The problem is that deactivate-mark doesn't work in this case, for some reason, and neither is setting mark-active to nil.
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
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To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#58175: 29.0.50; M-x window-swap-states during an active
mark leaves behind a region overlay
In-Reply-To: <83a66if2r0.fsf@HIDDEN>
References: <86sfkaay2d.fsf@miha-pc> <83a66if2r0.fsf@HIDDEN>
Date: Thu, 29 Sep 2022 21:17:56 +0200
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Content preview: Eli Zaretskii <eliz@HIDDEN> writes: >> Date: Thu, 29 Sep
2022 19:29:46 +0200 >> From: miha--- via "Bug reports for GNU Emacs, >> the
Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> >> >> 1. 'C-h e'
to display *Messages* in a n [...]
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Content preview: Eli Zaretskii <eliz@HIDDEN> writes: >> Date: Thu, 29 Sep
2022 19:29:46 +0200 >> From: miha--- via "Bug reports for GNU Emacs, >> the
Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> >> >> 1. 'C-h e'
to display *Messages* in a n [...]
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Eli Zaretskii <eliz@HIDDEN> writes:
>> Date: Thu, 29 Sep 2022 19:29:46 +0200
>> From: miha--- via "Bug reports for GNU Emacs,
>> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
>>=20
>> 1. 'C-h e' to display *Messages* in a new window
>> 2. 'C-SPC C-n' to mark an active region
>> 3. 'M-x window-swap-states'
>> 4. 'C-g C-n' to deactivate the mark
>>=20
>> Notice how the region overlay stays there.
>
> "There" where?
In the *GNU Emacs* buffer, where we have originally marked a region in
step 2.
> What did you expect to happen in the above scenario, and why?
I expect the overlay to disappear after deactivating the mark with 'C-g'
in step 4.
>> window-state-put sets 'internal-region-overlay' window parameter to nil
>> without removing the actual region overlay
>
> Where in the code do you see that? I see this:
>
> (with-current-buffer (window-buffer window-1)
> (dolist (overlay (overlays-in (point-min) (point-max)))
> (let ((window (overlay-get overlay 'window)))
> (cond
> ((not window))
> ((eq window window-1)
> (overlay-put overlay 'window window-2))
> ((eq window window-2)
> (overlay-put overlay 'window window-1))))))
>
> AFAIU, this _swaps_ the 'window' property of the overlays, so that the
> overlay now belongs (and should be visible) in the other window.
> Which is what I should expect.
Indeed the overlay is shown in the correct window after step 3. The
problem is that it doesn't disappear after step 4
('redisplay--update-region-highlight' doesn't remove it).
> What am I missing?
Perhaps you forgot to deactivate the mark in step 4? If there is
anything unclear in the bug recipe, go ahead and ask.
--=-=-=
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--=-=-=--
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
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Date: Thu, 29 Sep 2022 21:34:59 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
To: miha@HIDDEN
In-Reply-To: <86sfkaay2d.fsf@miha-pc> (bug-gnu-emacs@HIDDEN)
Subject: Re: bug#58175: 29.0.50;
M-x window-swap-states during an active mark leaves behind a region
overlay
References: <86sfkaay2d.fsf@miha-pc>
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> Date: Thu, 29 Sep 2022 19:29:46 +0200
> From: miha--- via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
>
> 1. 'C-h e' to display *Messages* in a new window
> 2. 'C-SPC C-n' to mark an active region
> 3. 'M-x window-swap-states'
> 4. 'C-g C-n' to deactivate the mark
>
> Notice how the region overlay stays there.
"There" where?
What did you expect to happen in the above scenario, and why?
> window-state-put sets 'internal-region-overlay' window parameter to nil
> without removing the actual region overlay
Where in the code do you see that? I see this:
(with-current-buffer (window-buffer window-1)
(dolist (overlay (overlays-in (point-min) (point-max)))
(let ((window (overlay-get overlay 'window)))
(cond
((not window))
((eq window window-1)
(overlay-put overlay 'window window-2))
((eq window window-2)
(overlay-put overlay 'window window-1))))))
AFAIU, this _swaps_ the 'window' property of the overlays, so that the
overlay now belongs (and should be visible) in the other window.
Which is what I should expect.
What am I missing?
bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.
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To: bug-gnu-emacs@HIDDEN
Subject: 29.0.50; M-x window-swap-states during an active mark leaves behind
a region overlay
Date: Thu, 29 Sep 2022 19:29:46 +0200
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Content preview: emacs -q: 1. 'C-h e' to display *Messages* in a new window
2. 'C-SPC C-n' to mark an active region 3. 'M-x window-swap-states' 4. 'C-g
C-n' to deactivate the mark Notice how the region overlay stays there.
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--=-=-=
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
emacs -q:
1. 'C-h e' to display *Messages* in a new window
2. 'C-SPC C-n' to mark an active region
3. 'M-x window-swap-states'
4. 'C-g C-n' to deactivate the mark
Notice how the region overlay stays there.
To make this easier to debug, instrument 'window-swap-states' by
applying the following diff
diff --git a/lisp/window.el b/lisp/window.el
index 905803b19e..daddd18b74 100644
=2D-- a/lisp/window.el
+++ b/lisp/window.el
@@ -6518,8 +6518,14 @@ window-swap-states
(height-2 (and height (window-text-height window-2 t)))
old preserved)
;; Swap basic states.
+ (message "Before %S \n %S"
+ (window-parameter window-1 'internal-region-overlay)
+ (window-parameter window-2 'internal-region-overlay))
(window-state-put state-1 window-2 t)
(window-state-put state-2 window-1 t)
+ (message "After: %S \n %S"
+ (window-parameter window-1 'internal-region-overlay)
+ (window-parameter window-2 'internal-region-overlay))
;; Swap overlays with `window' property.
(with-current-buffer (window-buffer window-1)
(dolist (overlay (overlays-in (point-min) (point-max)))
Follow the bug recipe and notice the following messages:
Before: #<overlay from 77 to 123 in *GNU Emacs*>=20
nil
After: nil=20
nil
window-state-put sets 'internal-region-overlay' window parameter to nil
without removing the actual region overlay, so it remains there in the
buffer. I'm not sure how to fix this. Perhaps we should add
'internal-region-overlay' to 'window-persistent-parameters'? Are other
commands that use window-state-get + window-state-put affected by this
bug as well?
In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.34, cairo version 1.17.6) of 2022-09-29 built on miha-pc
Repository revision: 0edd7770e0ce70cac59f239134962d10f48dec79
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Arch Linux
Configured using:
'configure -C --prefix=3D/usr --without-libsystemd
--enable-checking=3Dyes,glyphs --enable-check-lisp-object-type
'CFLAGS=3D-O0 -g3''
Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBXML2 M17N_FLT MODULES NOTIFY INOTIFY PDUMPER PNG
RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11
XDBE XIM XINPUT2 XPM GTK3 ZLIB
Important settings:
value of $LANG: en_US.utf8
locale-coding-system: utf-8-unix
Major mode: Shell
Minor modes in effect:
shell-dirtrack-mode: t
comint-fl-mode: t
tooltip-mode: t
global-eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
Load-path shadows:
None found.
Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068
epg-config gnus-util text-property-search mm-decode mm-bodies mm-encode
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tooltip eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd
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newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar
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font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq
simple cl-generic indonesian philippine cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms
cp51932 hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese composite emoji-zwj charscript charprop case-table
epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button
loaddefs faces cus-face macroexp files window text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify lcms2
dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
emacs)
Memory information:
((conses 16 77394 9282)
(symbols 48 8002 0)
(strings 32 23223 1949)
(string-bytes 1 634193)
(vectors 16 13518)
(vector-slots 8 208026 15295)
(floats 8 46 42)
(intervals 56 1050 0)
(buffers 1000 16))
--=-=-=
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--=-=-=--
miha@HIDDEN:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#58175; Package emacs.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.