Stefan Kangas <stefan@HIDDEN>
to control <at> debbugs.gnu.org.
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Sun, 23 Jan 2022 13:15:00 +0000 Received: by kubenode511.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 9207bb49e36b1316986f66f2c56642f4; Sun, 23 Jan 2022 13:14:55 +0000 (UTC) From: Po Lu <luangruo@HIDDEN> To: Rudolf Schlatte <rudi@HIDDEN> Subject: Re: bug#53458: [Request, Linux] Follow system dark mode user preference References: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com> <87wnirryve.fsf@HIDDEN> <m18rv6k94b.fsf@HIDDEN> Date: Sun, 23 Jan 2022 21:14:50 +0800 In-Reply-To: <m18rv6k94b.fsf@HIDDEN> (Rudolf Schlatte's message of "Sun, 23 Jan 2022 12:02:44 +0100") Message-ID: <87k0eqr3ud.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.19615 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 758 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 53458 Cc: 53458 <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: -1.0 (-) Rudolf Schlatte <rudi@HIDDEN> writes: > The OS changes the title bar color etc., but such a change would let > Emacs adapt frame contents, for example by changing the active theme. For Emacs to change the GTK stylesheet when the system tells it to over the XDG portal API doesn't mean it will necessarily be possible for Lisp programs to obtain the name of the stylesheet being utilized, but I think something like what Carbon Emacs has would be a good idea. I'm not convinced that implementing the former is a good idea, since changing the decoration style should be (and will probably be in the future) handled by either GTK+ or the window manager, while these standards come and go, but I am not opposed to the latter. Patches welcome, thanks.
bug-gnu-emacs@HIDDEN:bug#53458; Package emacs.
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From: Rudolf Schlatte <rudi@HIDDEN>
Subject: Re: bug#53458: [Request,
Linux] Follow system dark mode user preference
Date: Sun, 23 Jan 2022 12:02:44 +0100
Message-ID: <m18rv6k94b.fsf@HIDDEN>
References: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com>
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Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text
editors" <bug-gnu-emacs@HIDDEN> writes:
> Maximiliano Sandoval <msandova@HIDDEN> writes:
>
>> Recently a new setting was added to xdg-desktop-portal to declare the user
>> preference for a dark mode. This setting is DE-agnostic¹ and it is sandbox
>> friendly. The dark mode setting will be officially supported in GNOME 42,
>> elementary OS already supports it, and there is a merge request for KDE that
>> will most likely included its next release.
>>
>> How to implement
>
> Isn't the window manager and GTK+ responsible for this, and not the
> applications themselves?
The OS changes the title bar color etc., but such a change would let
Emacs adapt frame contents, for example by changing the active theme.
To give a concrete example, I have the snippet below in my init file,
evaluated when I'm running Yamamoto-san's Mac port:
(add-hook 'mac-effective-appearance-change-hook
#'(lambda () (pcase (plist-get (mac-application-state) :appearance)
("NSAppearanceNameDarkAqua" (modus-themes-load-vivendi))
("NSAppearanceNameAqua" (modus-themes-load-operandi)))))
bug-gnu-emacs@HIDDEN:bug#53458; Package emacs.
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Sun, 23 Jan 2022 02:04:43 +0000 Received: by kubenode501.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 9dbb8ad20ed5b281ff834f8c7bf3d734; Sun, 23 Jan 2022 02:04:41 +0000 (UTC) From: Po Lu <luangruo@HIDDEN> To: Maximiliano Sandoval <msandova@HIDDEN> Subject: Re: bug#53458: [Request, Linux] Follow system dark mode user preference References: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com> Date: Sun, 23 Jan 2022 10:04:37 +0800 In-Reply-To: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com> (Maximiliano Sandoval's message of "Sat, 22 Jan 2022 22:14:16 +0000") Message-ID: <87wnirryve.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailer: WebService/1.1.19615 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 535 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 53458 Cc: 53458 <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: -1.0 (-) Maximiliano Sandoval <msandova@HIDDEN> writes: > Recently a new setting was added to xdg-desktop-portal to declare the user > preference for a dark mode. This setting is DE-agnostic=C2=B9 and it is s= andbox > friendly. The dark mode setting will be officially supported in GNOME 42, > elementary OS already supports it, and there is a merge request for KDE t= hat > will most likely included its next release. > > How to implement Isn't the window manager and GTK+ responsible for this, and not the applications themselves?
bug-gnu-emacs@HIDDEN:bug#53458; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 22 Jan 2022 22:14:34 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Jan 22 17:14:34 2022 Received: from localhost ([127.0.0.1]:38154 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nBOeX-00005M-Ov for submit <at> debbugs.gnu.org; Sat, 22 Jan 2022 17:14:34 -0500 Received: from lists.gnu.org ([209.51.188.17]:47184) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <msandova@HIDDEN>) id 1nBOeV-00005B-Ms for submit <at> debbugs.gnu.org; Sat, 22 Jan 2022 17:14:32 -0500 Received: from eggs.gnu.org ([209.51.188.92]:38696) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <msandova@HIDDEN>) id 1nBOeV-00065L-IQ for bug-gnu-emacs@HIDDEN; Sat, 22 Jan 2022 17:14:31 -0500 Received: from mail-0301.mail-europe.com ([188.165.51.139]:50435) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <msandova@HIDDEN>) id 1nBOeT-0008EI-GC for bug-gnu-emacs@HIDDEN; Sat, 22 Jan 2022 17:14:30 -0500 Date: Sat, 22 Jan 2022 22:14:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail2; t=1642889658; bh=jF3Oz4L47RRGZltdUYrpAZfrJOGO2JbYL77VKXFavu4=; h=Date:To:From:Reply-To:Subject:Message-ID:From:To:Cc; b=Fq1XTon2HOwYnq8YOHNmKLImH9OpQRXSnm4mb6hHnzOuyEpZil3c2SQTrGqXrjSDq 4cAo9MBJ0lVj+GCsIudVpkOflRr8j/mAu/ZugI/3CGiKCh5UdZ1aCg36edMX00FKk9 sPtoDjXEkijSdazqDAZVbE37BmRFrxiSHGziFGPNDE3NBbHIJ/j0Eq2CxCw9Bs23db O6gfH+/94cTvjNN1pYc0Fpt/+SO39LcQmszC3qyZ4X6xsNBjIwd5PaJt0l7LibEpIK MvTtxYINMXs9FohNuxN+jm6ySyLOFjvqwfQt9779sMxBK0KRxEpnbWqkY9Pjq3k2/d SJYlQgk76aPsg== To: "bug-gnu-emacs@HIDDEN" <bug-gnu-emacs@HIDDEN> From: Maximiliano Sandoval <msandova@HIDDEN> Subject: [Request, Linux] Follow system dark mode user preference Message-ID: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-1.2 required=10.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM shortcircuit=no autolearn=disabled version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on mailout.protonmail.ch Received-SPF: pass client-ip=188.165.51.139; envelope-from=msandova@HIDDEN; helo=mail-0301.mail-europe.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -0.1 (/) X-Debbugs-Envelope-To: submit 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> Reply-To: Maximiliano Sandoval <msandova@HIDDEN> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.3 (--) Recently a new setting was added to xdg-desktop-portal to declare the user preference for a dark mode. This setting is DE-agnostic=C2=B9 and it is san= dbox friendly. The dark mode setting will be officially supported in GNOME 42, elementary OS already supports it, and there is a merge request for KDE tha= t will most likely included its next release. How to implement: Emacs has to read via dbus the value of the setting and l= isten for changes, then (if using a GtkHeaderBar) set the value of GtkSetting:gtk-application-prefer-dark-theme so that the header bar/title b= ar of emacs follows the preference. Ideally there could be `color-scheme` variabl= e for which the user can set values * prefer-light * prefer-dark * follow-system and a `is-dark-mode` variable so that users can read its value and add hook= s to it. Note that desktops environments might add dark/light mode schedulers based = on the time of the day, so it is important to be able to set hooks and listen = to the dbus for changes of the setting. Relevant devel discussions: - https://lists.gnu.org/archive/html/emacs-devel/2021-10/msg01737.html - https://lists.gnu.org/archive/html/emacs-devel/2021-03/msg00482.html Relevant material: - Freedesktop spec: https://flatpak.github.io/xdg-desktop-portal/#gdbus-org= .freedesktop.portal.Settings - GNOME Dark mode initiative: https://gitlab.gnome.org/GNOME/Initiatives/-/= issues/32 - C example (taken from the initiative): https://gitlab.gnome.org/GNOME/Ini= tiatives/-/wikis/uploads/b590f6ee98c68b652d95708f707ce927/hello.c -- Maximiliano
Maximiliano Sandoval <msandova@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#53458; Package emacs.
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