[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Emacs completion matches selection UI
From: |
Ted Zlatanov |
Subject: |
Re: Emacs completion matches selection UI |
Date: |
Mon, 16 Dec 2013 10:17:26 -0500 |
User-agent: |
Gnus/5.130008 (Ma Gnus v0.8) Emacs/24.3.50 (gnu/linux) |
I looked carefully at the `completion-in-region-*' functions and
especially the `completion-in-region-mode' and its keymap. This is for
the UI case of "I'm in a buffer and invoke `completion-at-point'".
It's a real mess. We do a ton of special magic to avoid having a
special popup in favor of a *Completions* buffer. The comment on
`completion-in-region--postch' says it pretty clearly:
;; It is difficult to know when to exit completion-in-region-mode (i.e. hide
;; the *Completions*).
;; - lisp-mode: never.
;; - comint: only do it if you hit SPC at the right time.
;; - pcomplete: pop it down on SPC or after some time-delay.
;; - semantic: use a post-command-hook check similar to this one.
If there was a special popup to show a list of items, like you see in
this snapshot of company-mode
http://company-mode.github.io/images/company-elisp.png , it would
abstract these difficulties and cut some nasty code out of
minibuffer.el.
We already have such popups natively for Customize with `widget-choose'
(supporting text in a nice buffer similar to *Completions* but with key
shortcuts and nice help test, and graphical UI with native popups) so I
hope it's not terribly hard to use that code more generally. It seems
easier to improve `widget-choose' than to keep hacking on the special
*Completions* cases.
For the UI case of "I'm in the minibuffer and want to complete
something" I would rather wait for the general list popup to be
available with `widget-choose' than add the special down/up keybindings
that we discussed. It will be a better UI in every way than the
*Completions* buffer IMO.
If you agree, I can pursue this after the upcoming release. I think the
change is too risky for the short time we have this week.
Ted
- Re: Emacs completion matches selection UI,
Ted Zlatanov <=
- Re: Emacs completion matches selection UI, Stefan Monnier, 2013/12/16
- Re: Emacs completion matches selection UI, Ted Zlatanov, 2013/12/16
- Re: Emacs completion matches selection UI, Stefan Monnier, 2013/12/16
- Re: Emacs completion matches selection UI, Ted Zlatanov, 2013/12/17
- Re: Emacs completion matches selection UI, Stefan Monnier, 2013/12/17
- Re: Emacs completion matches selection UI, Ted Zlatanov, 2013/12/17
- Re: Emacs completion matches selection UI, Stephen J. Turnbull, 2013/12/17
- Re: Emacs completion matches selection UI, Ted Zlatanov, 2013/12/17
- Re: Emacs completion matches selection UI, Stephen J. Turnbull, 2013/12/17
- Re: Emacs completion matches selection UI, Ted Zlatanov, 2013/12/18