Stefan Kangas <stefankangas@HIDDEN>
to control <at> debbugs.gnu.org.
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Hermes SMTP Server) with ESMTPA ID 68fa60ab536fe5e2f2bf7fba03ee2b1e; Wed, 02 Aug 2023 13:22:01 +0000 (UTC) From: Po Lu <luangruo@HIDDEN> To: Huan Thieu Nguyen <hnguyen@HIDDEN> Subject: Re: bug#65008: 29.1; Feature: dired-mouse-drag-files for Wayland In-Reply-To: <2dc7e650062341cb9a1c560e2199566c@HIDDEN> (Huan Thieu Nguyen's message of "Wed, 2 Aug 2023 07:55:29 +0000") References: <2dc7e650062341cb9a1c560e2199566c@HIDDEN> Date: Wed, 02 Aug 2023 21:21:56 +0800 Message-ID: <871qgld1fv.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.21685 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 1726 X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 65008 Cc: 65008 <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 (-) Huan Thieu Nguyen <hnguyen@HIDDEN> writes: > Hi, why does this feature exclude Wayland? It's possible to do with > GTK3. I might be able to help, but I've only done it with GTK4 which > changed it a bit <https://docs.gtk.org/gtk4/migrating-3to4.html#switch-to-the-new-drag-and-drop-api> Patches welcome. I set out to implement this last year, but found several severe problems with GDK's crude Wayland drag-and-drop implementation preventing it from matching Emacs's expectations. The GDK Wayland backend's drag and drop interface returns a placeholder window from `gdk_drag_find_window_for_screen', presuming that the program implementing DND will immediately call `gdk_drag_motion' with updated drag-and-drop information. Emacs needs to know exactly which window is under the pointer (and also the position of the pointer device) in order to display and position the optional DND tooltip and possibly cancel DND if the pointer moves back into a frame. These problems eventually boil down to the inability of Wayland clients to terminate drags they initiate, and Wayland's refusal to provide the client with the surface under the pointer during a drag. As a consequence, Emacs can't return to Lisp when the mouse pointer returns to the confines of a frame, nor can it quit out of drag and drop operations. If you do want to pick up where I left off, keep in mind that Emacs can't make use of the higher level GTK drag-and-drop interface: it must employ the GDK drag-and-drop primitives, since only those enable selection data to be transferred. You will want to implement the function `x-begin-drag'; refer to its documentation and the implementations in xfns.c, ns-win.el and haiku-win.el for more details.
bug-gnu-emacs@HIDDEN:bug#65008; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 2 Aug 2023 08:06:44 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Aug 02 04:06:44 2023 Received: from localhost ([127.0.0.1]:48816 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1qR6sW-0002ro-94 for submit <at> debbugs.gnu.org; Wed, 02 Aug 2023 04:06:44 -0400 Received: from lists.gnu.org ([2001:470:142::17]:46242) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <hnguyen@HIDDEN>) id 1qR6hv-0002ZK-6N for submit <at> debbugs.gnu.org; Wed, 02 Aug 2023 03:55:47 -0400 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 <hnguyen@HIDDEN>) id 1qR6hm-00089q-4H for bug-gnu-emacs@HIDDEN; Wed, 02 Aug 2023 03:55:39 -0400 Received: from mail5.swissbit.com ([148.251.244.252] helo=mail6.swissbit.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <hnguyen@HIDDEN>) id 1qR6hk-0001Eh-9m for bug-gnu-emacs@HIDDEN; Wed, 02 Aug 2023 03:55:37 -0400 Received: from mail6.swissbit.com (localhost [127.0.0.1]) by DDEI (Postfix) with ESMTP id 9EBD6222943 for <bug-gnu-emacs@HIDDEN>; Wed, 2 Aug 2023 09:55:30 +0200 (CEST) Received: from mail6.swissbit.com (localhost [127.0.0.1]) by DDEI (Postfix) with ESMTP id 75BA4222937 for <bug-gnu-emacs@HIDDEN>; Wed, 2 Aug 2023 09:55:30 +0200 (CEST) X-TM-AS-ERS: 10.181.10.102-127.5.254.253 X-TM-AS-SMTP: 1.0 bXgyLmRtei5zd2lzc2JpdC5jb20= aG5ndXllbkBoeXBlcnN0b25lLmNvb Q== X-DDEI-TLS-USAGE: Used Received: from mx2.dmz.swissbit.com (mx2.dmz.swissbit.com [10.181.10.102]) by mail6.swissbit.com (Postfix) with ESMTPS for <bug-gnu-emacs@HIDDEN>; Wed, 2 Aug 2023 09:55:30 +0200 (CEST) From: Huan Thieu Nguyen <hnguyen@HIDDEN> To: "bug-gnu-emacs@HIDDEN" <bug-gnu-emacs@HIDDEN> Subject: 29.1; Feature: dired-mouse-drag-files for Wayland Thread-Topic: 29.1; Feature: dired-mouse-drag-files for Wayland Thread-Index: AdnFFoewEVl/cbZUR0KqzKBNM/kBcA== Date: Wed, 2 Aug 2023 07:55:29 +0000 Message-ID: <2dc7e650062341cb9a1c560e2199566c@HIDDEN> Accept-Language: de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-TMASE-Version: DDEI-5.1-9.0.1002-27788.006 X-TMASE-Result: 10--0.170300-10.000000 X-TMASE-MatchedRID: r52rw5mZIl+FwLGqhAa9VYknvYO5kHSc+KgiyLtJrSC2jcVPXmqqIJ0H sPL+Xqra7yZRfw14Dg5/JgN7Aw6tAIbOw5rKls3R7Z4ofcsZ/0vA3uQfVY1UMY6HM5rqDwqt4cG oJ8VhBejcoxbcWpHhhNTcVwEaW1CwK9TXvIn5aBWDB0cIFNBGEQ== X-TMASE-SNAP-Result: 1.821001.0001-0-1-22:0,33:0,34:0-0 X-TMASE-INERTIA: 0-0;;;; X-TMASE-XGENCLOUD: cc3c3ddf-f0b2-901e-8b92-8628c07d7ef9-0-0-200-0 Received-SPF: pass client-ip=148.251.244.252; envelope-from=hnguyen@HIDDEN; helo=mail6.swissbit.com 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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.9 (/) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Wed, 02 Aug 2023 04:06:42 -0400 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: -0.1 (/) Hi, why does this feature exclude Wayland? It's possible to do with GTK3. I might be able to help, but I've only done it with GTK4 which changed it a bit <https://docs.gtk.org/gtk4/migrating-3to4.html#switch-to= -the-new-drag-and-drop-api> Hyperstone GmbH | Reichenaustr. 39a | 78467 Konstanz=0AManaging Director= : Dr. Jan Peter Berns.=0ACommercial register of local courts: Freiburg HR= B381782
Huan Thieu Nguyen <hnguyen@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#65008; Package emacs.
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