From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: StrawberryTea <look@strawberrytea.xyz>, help-gnu-emacs@gnu.org
Subject: How do i lookup a key but also respect key translations? (was: bug#66755: 30.0.50)
Date: Thu, 26 Oct 2023 10:31:07 -0400 [thread overview]
Message-ID: <jwvsf5xv534.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83msw5hmqn.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 26 Oct 2023 10:22:08 +0300")
>> Hello. So I am trying to define a function which obtains the command
>> that would be called if 'corfu-mode' was not enabled:
Sounds like pain. Often the better solution is to step back and think
of some other way to get that result, e.g. temporarily disabling
corfu-mode beforehand.
>> (defun +corfu--get-passthrough-command ()
>> (keymap-lookup
>> (thread-last
>> (current-active-maps t)
>> (delq corfu-map)
I think you can get a similar result with
(let ((corfu-mode nil))
(current-active-maps t))
>> (keymap-lookup (current-active-maps t)
>> (key-description (vector 'backspace)))
>>
>> returns nil whereas
>>
>> (keymap-lookup (current-active-maps t) (key-description (vector ?\C-?)))
Right, because you need to obey the various key-remapping keymaps, like
`function-key-map` and friends.
It's actually a fundamentally difficult problem. Think of the case
where the "underlying binding" you're trying to find is actually
a keymap because the user decided to use his DEL key as a prefix key?
What should you do in that case?
If you can't know beforehand that you'll want to just "passthrough"
(hence you can't disable corfu ahead of time), a second best kind of
solution is to push the events back on `unread-command-events`.
Another approach that can be used sometime is to make the binding that
you sometimes want to fallthrough be dynamically enabled/disabled with
something like:
(define-key map [THE-KEYS]
`(menu-item THE-COMMAND
:filter ,(lambda (cmd) (if (THE-CONDITION) cmd))))
-- Stefan
next prev parent reply other threads:[~2023-10-26 14:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-26 3:57 bug#66755: 30.0.50; how do i lookup a key but also respect key translations? StrawberryTea
2023-10-26 7:22 ` Eli Zaretskii
2023-10-26 14:31 ` Stefan Monnier [this message]
2023-10-28 15:12 ` How do i lookup a key but also respect key translations? (was: bug#66755: 30.0.50) StrawberryTea
2024-01-10 18:00 ` bug#66755: 30.0.50; how do i lookup a key but also respect key translations? Stefan Kangas
2024-01-11 3:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=jwvsf5xv534.fsf-monnier+emacs@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=eliz@gnu.org \
--cc=help-gnu-emacs@gnu.org \
--cc=look@strawberrytea.xyz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.