From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Touchscreen support Date: Fri, 17 Dec 2021 08:18:46 -0500 Message-ID: References: <87czlxkntg.fsf.ref@yahoo.com> <87czlxkntg.fsf@yahoo.com> <87mtkziwhi.fsf@yahoo.com> <87wnk3h0hn.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36129"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Po Lu via "Emacs development discussions." , Lars Ingebrigtsen To: Po Lu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Dec 17 14:21:06 2021 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 1myDAX-0009Cj-R7 for ged-emacs-devel@m.gmane-mx.org; Fri, 17 Dec 2021 14:21:06 +0100 Original-Received: from localhost ([::1]:35204 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1myDAW-0007so-Ia for ged-emacs-devel@m.gmane-mx.org; Fri, 17 Dec 2021 08:21:04 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:47420) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1myD8P-0006Bo-KM for emacs-devel@gnu.org; Fri, 17 Dec 2021 08:18:53 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:54817) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1myD8M-0000P2-RV for emacs-devel@gnu.org; Fri, 17 Dec 2021 08:18:52 -0500 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id A4A9A441726; Fri, 17 Dec 2021 08:18:49 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 4DF2C4412F6; Fri, 17 Dec 2021 08:18:48 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1639747128; bh=Rlqu79GfmjT0UsJGfiIcRkDUc1lCIE2AyqlxLCdK0YU=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=QcHnYkkib5Djk3pL7VWirCHRU10EXA11D1nWiNIINfPt5BlNTKBTPFDKGGJMyTAqw ddv8NJi/NuAkVscfbCCmv9j5uoaInuz+7PC5AdzIz5VDHSL0MeEAWhd36kAyZUAgdL cihKiVNgRV1L51IcvayGx/BNsSTR0j2Tb2LSJ5b5jxnz8dGFPeQ55jKHycECO6X9LW 1S3xA98xl8dEdarYdIS1FHvySkzw1Vvn0YICW1ZOyhXlkMhFhizM/ucKiqmPfRM4o7 MmUUoGZ0F9s86KHR5nIZRBLCQpi/f3kb7Lp0czWBQ7Wrr4Gyd5WRSj6DdVOcZpydzf Xc3JYAtwbZxvw== Original-Received: from pastel (unknown [216.154.30.173]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 1181F120278; Fri, 17 Dec 2021 08:18:48 -0500 (EST) In-Reply-To: <87wnk3h0hn.fsf@yahoo.com> (Po Lu's message of "Fri, 17 Dec 2021 20:36:20 +0800") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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" Xref: news.gmane.io gmane.emacs.devel:282215 Archived-At: Po Lu [2021-12-17 20:36:20] wrote: > Stefan Monnier writes: >> What I don't understand is why we need to (re)implement this. I mean, >> obvious all other applications will want/need something similar, so >> isn't there some standard library offering the functionality already? > > There isn't one we can acceptably use on X, and the other platforms > (such as GTK and NS) offer very different meanings of what constitutes a > "gesture" which are difficult to abstract around in a useful manner. > > Other cross-platform programs I examined such as Mozilla Firefox also > implement gesture recognition from scratch. Hmm... that sucks. Hopefully this will improve in the longer term, Stefan