From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Cecilio Pardo Newsgroups: gmane.emacs.devel Subject: Re: Physical keyboard events Date: Tue, 29 Oct 2024 16:07:16 +0100 Message-ID: References: <86r07z58or.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9113"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla Thunderbird Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Oct 29 16:07:46 2024 Return-path: Envelope-to: ged-emacs-devel@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 1t5nou-0002HW-69 for ged-emacs-devel@m.gmane-mx.org; Tue, 29 Oct 2024 16:07:44 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t5noc-0004qh-6X; Tue, 29 Oct 2024 11:07:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t5noZ-0004q0-UG for emacs-devel@gnu.org; Tue, 29 Oct 2024 11:07:24 -0400 Original-Received: from mail.imayhem.com ([82.223.54.191] helo=zealous-pike.82-223-54-191.plesk.page) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1t5noX-0006zR-Gg; Tue, 29 Oct 2024 11:07:23 -0400 Original-Received: from [192.168.68.104] (111.red-88-21-7.staticip.rima-tde.net [88.21.7.111]) by zealous-pike.82-223-54-191.plesk.page (Postfix) with ESMTPSA id 1F9028012E; Tue, 29 Oct 2024 15:07:19 +0000 (UTC) Authentication-Results: zealous-pike.82-223-54-191.plesk.page; spf=pass (sender IP is 88.21.7.111) smtp.mailfrom=cpardo@imayhem.com smtp.helo=[192.168.68.104] Received-SPF: pass (zealous-pike.82-223-54-191.plesk.page: connection is authenticated) Content-Language: es-ES In-Reply-To: <86r07z58or.fsf@gnu.org> Received-SPF: pass client-ip=82.223.54.191; envelope-from=cpardo@imayhem.com; helo=zealous-pike.82-223-54-191.plesk.page X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:324919 Archived-At: On 29/10/2024 14:40, Eli Zaretskii wrote: >> I'm planning to implement physical key press/release events for emacs. >> I would add a new element to 'enum event_kind', that in turn would >> send a new input event. This input event will be bound in >> 'special-event-map' so that it will not modify the normal flow of >> keyboard input. Platform dependent code would send these events >> on key press and release. > > I hope these new events will not be sent at all times, only when some > optional variable is set (similar to track-mouse, perhaps). I > wouldn't want Emacs to start processing press/release events on Shift > or Ctrl unless a Lisp program needs that, and I don't think we want to > change our processing of keyboard such that instead of a single > keypress with modifiers we need to process multiple key-press and > key-release events when the user simply types on the keyboard. Thats why the events will be bound in special-event-map. Nobody will see them, except for the code that handles them. We can of course completely disable them with a variable. > Physical keys also raise the issue of supporting input methods, > keyboard layout switches, etc. I will define a list of keys: LeftShit, RightShift, LeftControl, etc. The platform dependent code will decide which one was pressed. As events will be invisible, I don't think we will interfere with input methods. > However, on what systems and which Emacs configurations will it be > possible to provide such a feature? I think all GUI systems can use this.