From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Rudolf Schlatte Newsgroups: gmane.emacs.bugs Subject: bug#53458: [Request, Linux] Follow system dark mode user preference Date: Sun, 23 Jan 2022 12:02:44 +0100 Message-ID: References: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com> <87wnirryve.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22983"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (darwin) To: 53458@debbugs.gnu.org Cancel-Lock: sha1:e4yHWem/29+1wkufjCCveX5aQVw= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Jan 23 12:04:11 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nBafK-0005ku-Kc for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 23 Jan 2022 12:04:10 +0100 Original-Received: from localhost ([::1]:42948 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nBafI-0001Sp-OE for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 23 Jan 2022 06:04:08 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:50652) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nBafC-0001SR-Bl for bug-gnu-emacs@gnu.org; Sun, 23 Jan 2022 06:04:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45722) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nBafC-0006Tp-0A for bug-gnu-emacs@gnu.org; Sun, 23 Jan 2022 06:04:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nBafB-00059v-Ta for bug-gnu-emacs@gnu.org; Sun, 23 Jan 2022 06:04:01 -0500 X-Loop: help-debbugs@gnu.org In-Reply-To: <3iRhN5EFJnIdFLuFt_CnYryIAZSjHpoq96ZkkxYkI1DJS4cNYRyGd18E92AH1lTjuEY75njusiICZbdF_AD0brAkLZ_9o9Gk435hsZbXiho=@protonmail.com> Resent-From: Rudolf Schlatte Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 23 Jan 2022 11:04:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 53458 X-GNU-PR-Package: emacs X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.164293580219780 (code B ref -1); Sun, 23 Jan 2022 11:04:01 +0000 Original-Received: (at submit) by debbugs.gnu.org; 23 Jan 2022 11:03:22 +0000 Original-Received: from localhost ([127.0.0.1]:38624 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nBaeY-00058x-5q for submit@debbugs.gnu.org; Sun, 23 Jan 2022 06:03:22 -0500 Original-Received: from lists.gnu.org ([209.51.188.17]:45046) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nBaeX-00058q-3A for submit@debbugs.gnu.org; Sun, 23 Jan 2022 06:03:21 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:50508) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nBaeW-0001Pz-UM for bug-gnu-emacs@gnu.org; Sun, 23 Jan 2022 06:03:20 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:49474) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nBaeQ-0005se-U8 for bug-gnu-emacs@gnu.org; Sun, 23 Jan 2022 06:03:20 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1nBaeN-0004Nj-UT for bug-gnu-emacs@gnu.org; Sun, 23 Jan 2022 12:03:11 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geb-bug-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:224894 Archived-At: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" writes: > Maximiliano Sandoval 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)))))