[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: How do i lookup a key but also respect key translations? (was: bug#6
From: |
StrawberryTea |
Subject: |
Re: How do i lookup a key but also respect key translations? (was: bug#66755: 30.0.50) |
Date: |
Sat, 28 Oct 2023 10:12:45 -0500 |
User-agent: |
mu4e 1.10.7; emacs 30.0.50 |
Hi Stefan. Using let-binding corfu-mode did not affect the output of
current-active-maps but the menu-item usage worked perfectly for all the
use-cases I was working on for a new Doom Emacs module. Thank you đ.
I was hoping for a drop-in replacement for keymap-lookup/lookup-key/key-binding
that respects key translations to pick up some low-hanging fruit in Meow/God
Mode/Devil since those packages do not utilize the key-translation-map but it
seems that might be really complicated.
Love your MPC package by the way!
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>> Hello. So I am trying to define a function which obtains the command
>>> that would be called if âcorfu-modeâ 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 +corfuâget-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 âbackspace)))
>>>
>>> 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.
>
> Itâs actually a fundamentally difficult problem. Think of the case
> where the âunderlying bindingâ youâre 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 canât know beforehand that youâll want to just âpassthroughâ
> (hence you canât 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))))
>
> â Stefan