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* bug#74016: 29.4; emacs-pgtk doesnt receive numpad events on wayland(sway)
@ 2024-10-25 19:35 joakim
  2024-11-02 11:29 ` Eli Zaretskii
  0 siblings, 1 reply; 4+ messages in thread
From: joakim @ 2024-10-25 19:35 UTC (permalink / raw)
  To: 74016


Emacs-pgtk doesnt seem to receive numpad events, instead number events
are received.

There was a thread about this on emacs-help:

https://lists.gnu.org/archive/html/help-gnu-emacs/2024-10/msg00094.html

I have attempted to summarize the thread here, wherein Stefan Monier
recomended I report this as a bug, and I also received knowledgeable
advice from several others.

Heres the bug:

I used to use a numpad to bind to do things in emacs.

This used to work really well on the i3wm window manager and a gtk emacs
build.

Then I bought a nice new framework laptop which has a hidpi screen, so I
switched to using the sway wm, and emacs-pgtk.

Now the numpad no longer sends keypad events in a way that emacs
recognizes, instead just plain numbers are received.

below is an example of the code I use, but normally I just test with c-h
k to see which key emacs receives.

I also tried xev, and there it seems I get kp events, at least under
xwayland I guess.

(define-key cider-mode-map (kbd "<kp-enter>") 'sylt-stop)
(define-key cider-mode-map (kbd "<kp-separator>") 'sylt-play-metro)

(defmacro sylt-song-event-map-key (key num)
  `(define-key cider-mode-map (kbd ,key)
               (lambda  () (interactive)   (cider-nrepl-sync-request:eval  
,(concat "(sylt.core/song-event \"" num "\")")))))



(sylt-song-event-map-key "<kp-0>" "init")
(sylt-song-event-map-key "<kp-1>" "1")


Instead of xev, I tried wev, and got this, which seems expected:

Using wev, installed from Fedora repos I get, for numpad 4, and normal 4:

[14:     wl_keyboard] key: serial: 60293; time: 61646320; key: 83; state: 0 
(released)
                      sym: KP_4         (65460), utf8: ''
[14:     wl_keyboard] key: serial: 60294; time: 61651642; key: 13; state: 1 
(pressed)
                      sym: 4            (52), utf8: '4'

That is, the numpad and the number pad sends distinct events that are
received by wev.

using (read-key) in emacs-pgtk, both the numpad and the number row are
received as the same event:

52 (#o64, #x34, ?4) [2 times]

I get the same in a emacs gtk session.

Maybe gtk is doing something weird?

so now I tried emacs-29.4-gtk+x11 -Q

and then I get "4 (translated from <kp-4>)"
on c-h k, numpad 4, so xwayland is doing something correctly in this
case, which pgtk isnt doing in the same way(imho incorrectly but what do
I know)

(and as a reminder, I run emacs-pgtk because it looks super nice on
wayland, with the scaling hints I use on my framework hidpi screen, but
emacs-29.4-gtk+x11 doesnt look good.)


/Joakim




In GNU Emacs 29.4 (build 1, x86_64-redhat-linux-gnu, GTK+ Version
 3.24.43, cairo version 1.18.0) of 2024-10-10 built on
 4825182c94fc4195b65c80c30f523a16
System Description: Fedora Linux 41 (Workstation Edition)

Configured using:
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-- 
Joakim Verona
joakim@verona.se





^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-11-03  9:02 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-10-25 19:35 bug#74016: 29.4; emacs-pgtk doesnt receive numpad events on wayland(sway) joakim
2024-11-02 11:29 ` Eli Zaretskii
2024-11-02 13:34   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-03  9:02   ` joakim

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