doomemacs/modules/completion/corfu/config.el
2023-11-26 12:06:02 -03:00

293 lines
11 KiB
EmacsLisp

;;; completion/corfu/config.el -*- lexical-binding: t; -*-
(defvar +cape-buffer-scanning-size-limit (* 1 1024 1024) ; 1 MB
"Size limit for a buffer to be scanned by `cape-line' or `cape-dabbrev'.
As an exception, `cape-line' will also scan buffers with the same
major mode regardless of size.")
;;
;;; Packages
(use-package! corfu
:hook ((doom-first-buffer . global-corfu-mode)
(org-mode . corfu-mode))
:init
(when (modulep! +orderless)
(after! orderless
(setq orderless-component-separator #'orderless-escapable-split-on-space)))
;; Auto-completion settings, must be set before calling `global-corfu-mode'.
;; Due to lazy-loading, overriding these in config.el works too.
(setq corfu-auto t
corfu-auto-delay 0.1
corfu-auto-prefix 2
corfu-separator ?\s
corfu-excluded-modes '(erc-mode
circe-mode
help-mode
gud-mode
vterm-mode))
;; `:g' is needed here to prevent `global-map' from overriding this with
;; `set-mark-command'.
(map! :unless (modulep! +tng) :gi "C-SPC" #'completion-at-point)
:config
(setq corfu-cycle t
corfu-preselect (if (modulep! :completion corfu +tng) 'prompt t)
corfu-count 16
corfu-max-width 120
corfu-preview-current 'insert
corfu-on-exact-match nil
corfu-quit-at-boundary t
corfu-quit-no-match (if (modulep! +orderless) 'separator t)
;; In the case of +tng, TAB should be smart regarding completion;
;; However, it should otherwise behave like normal, whatever normal was.
tab-always-indent (if (modulep! +tng) 'complete tab-always-indent))
(defun corfu-disable-in-minibuffer-p ()
(or (bound-and-true-p mct--active)
(bound-and-true-p vertico--input)
(and (featurep 'helm-core) (helm--alive-p))
(eq (current-local-map) read-passwd-map)))
(defun corfu-enable-in-minibuffer ()
"Enable Corfu in the minibuffer if `completion-at-point' is bound."
(unless (corfu-disable-in-minibuffer-p)
(setq-local corfu-echo-delay nil ;; Disable automatic echo and popup
corfu-popupinfo-delay nil)
(corfu-mode +1)))
(add-hook 'minibuffer-setup-hook #'corfu-enable-in-minibuffer)
(defun corfu-visible-p ()
(or (and (frame-live-p corfu--frame)
(frame-visible-p corfu--frame))
(and (featurep 'corfu-terminal)
(popon-live-p corfu-terminal--popon))))
;; If you want to update the visual hints after completing minibuffer commands
;; with Corfu and exiting, you have to do it manually.
(defadvice! +corfu--insert-before-exit-minibuffer-a ()
:before #'exit-minibuffer
(when (corfu-visible-p)
(when (member isearch-lazy-highlight-timer timer-idle-list)
(apply (timer--function isearch-lazy-highlight-timer)
(timer--args isearch-lazy-highlight-timer)))
(when (member (bound-and-true-p anzu--update-timer) timer-idle-list)
;; Pending a PR I (@LemonBreezes) am making to expose `anzu--update-timer'.
(apply (timer--function anzu--update-timer)
(timer--args anzu--update-timer)))
(when (member (bound-and-true-p evil--ex-search-update-timer)
timer-idle-list)
(apply (timer--function evil--ex-search-update-timer)
(timer--args evil--ex-search-update-timer)))))
;; Allow completion after `:' in Lispy.
(add-to-list 'corfu-auto-commands #'lispy-colon)
(add-hook! 'evil-insert-state-exit-hook
(defun +corfu-quit-on-evil-insert-state-exit-h ()
;; This predicate a workaround for unexpected calls to `corfu-quit' in
;; :company-doc-buffer buffers. This was specifically happening when using
;; `yasnippet-capf' and `company-yasnippet'.
(when (eq (current-buffer) (window-buffer (selected-window)))
(corfu-quit))))
(when (modulep! +icons)
(add-to-list 'corfu-margin-formatters #'nerd-icons-corfu-formatter))
(defun +corfu--reset-or-passthrough (cmd)
(when (and (modulep! +tng)
(> corfu--index -1)
(eq corfu-preview-current 'insert))
cmd))
(defun +corfu--backward-toggle-escape-sep (cmd)
(save-excursion
(backward-char 1)
(if (looking-back "\\\\" -1)
#'corfu-reset
(lambda ()
(interactive)
(save-excursion
(backward-char 1)
(insert-char ?\\))))))
(defun +corfu--insert-separator-or-toggle-escape (cmd)
(if (char-equal (char-before) corfu-separator)
(+corfu--backward-toggle-escape-sep cmd)
cmd))
(let ((mi-del '(menu-item "corfu-reset-or-passthrough" corfu-reset
:filter +corfu--maybe-reset-backspace-filter))
(mi-c-spc '(menu-item "corfu-insert-separator-or-toggle-escape" corfu-insert-separator
:filter +corfu--insert-separator-or-toggle-escape)))
(map! :map corfu-map
[return] #'corfu-insert
"RET" #'corfu-insert
(:when (modulep! +orderless)
:gi "C-SPC" mi-c-spc)
(:when (modulep! +tng)
[tab] #'corfu-next
[backtab] #'corfu-previous
"TAB" #'corfu-next
"S-TAB" #'corfu-previous
[backspace] mi-del
"DEL" mi-del)))
(after! vertico
(map! :map corfu-map
"M-m" #'corfu-move-to-minibuffer
(:when (modulep! :editor evil) "M-J" #'corfu-move-to-minibuffer))))
(use-package! cape
:commands
cape-abbrev
cape-dabbrev
cape-dict
cape-elisp-block
cape-elisp-symbol
cape-emoji
cape-file
cape-history
cape-keyword
cape-line
cape-rfc1345
cape-sgml
cape-tex
cape-company-to-capf
cape-capf-super
cape-capf-buster
cape-capf-accept-all
cape-capf-debug
cape-capf-silent
cape-capf-purify
cape-capf-nonexclusive
cape-capf-noninterruptable
cape-capf-properties
cape-capf-predicate
cape-capf-prefix-length
cape-capf-inside-comment
cape-capf-inside-string
cape-capf-inside-faces
cape-capf-interactive
cape-wrap-buster
cape-wrap-accept-all
cape-wrap-debug
cape-wrap-silent
cape-wrap-purify
cape-wrap-nonexclusive
cape-wrap-noninterruptable
cape-wrap-properties
cape-wrap-predicate
cape-wrap-prefix-length
cape-wrap-inside-comment
cape-wrap-inside-string
cape-wrap-inside-faces
cape-interactive
:init
(add-hook! prog-mode
(add-hook 'completion-at-point-functions #'cape-file -10 t))
(add-hook! (org-mode markdown-mode)
(add-hook 'completion-at-point-functions #'cape-elisp-block 0 t))
;; Enable Dabbrev completion basically everywhere as a fallback.
;; Set up `cape-dabbrev' options.
(defun +dabbrev-friend-buffer-p (other-buffer)
(< (buffer-size other-buffer) +cape-buffer-scanning-size-limit))
(setq cape-dabbrev-check-other-buffers t
dabbrev-friend-buffer-function #'+dabbrev-friend-buffer-p
dabbrev-ignored-buffer-regexps
'("\\.\\(?:pdf\\|jpe?g\\|png\\|svg\\|eps\\)\\'"
"^ "
"\\(TAGS\\|tags\\|ETAGS\\|etags\\|GTAGS\\|GRTAGS\\|GPATH\\)\\(<[0-9]+>\\)?")
dabbrev-upcase-means-case-search t)
(when (modulep! +dabbrev)
(add-hook! (prog-mode text-mode conf-mode comint-mode minibuffer-setup
eshell-mode)
(add-hook 'completion-at-point-functions #'cape-dabbrev 20 t)))
;; Set up `cape-line' options.
(defun +cape-line-buffers ()
(cl-loop for buf in (buffer-list)
if (or (eq major-mode (buffer-local-value 'major-mode buf))
(< (buffer-size buf) +cape-buffer-scanning-size-limit))
collect buf))
(setq cape-line-buffer-function #'+cape-line-buffers)
(when (modulep! +line)
(add-hook! (text-mode comint-mode minibuffer-setup)
(add-hook 'completion-at-point-functions #'cape-line 20 t)))
;; Complete emojis :).
(when (and (modulep! +emoji) (> emacs-major-version 28))
(add-hook! (prog-mode conf-mode)
(add-hook 'completion-at-point-functions
(cape-capf-inside-faces
(cape-capf-prefix-length #'cape-emoji 1)
;; Only call inside comments and docstrings.
'tree-sitter-hl-face:doc 'font-lock-doc-face
'font-lock-comment-face 'tree-sitter-hl-face:comment)
10 t))
(add-hook! text-mode
(add-hook 'completion-at-point-functions
(cape-capf-prefix-length #'cape-emoji 1) 10 t)))
;; Enable dictionary-based autocompletion.
(when (modulep! +dict)
(add-hook! text-mode
(add-hook 'completion-at-point-functions #'cape-dict 40 t))
(add-hook! (prog-mode conf-mode)
(add-hook 'completion-at-point-functions
(cape-capf-inside-faces
;; Only call inside comments and docstrings.
#'cape-dict 'tree-sitter-hl-face:doc 'font-lock-doc-face
'font-lock-comment-face 'tree-sitter-hl-face:comment)
40 t)))
;; Make these capfs composable.
(advice-add #'comint-completion-at-point :around #'cape-wrap-nonexclusive)
(advice-add #'eglot-completion-at-point :around #'cape-wrap-nonexclusive)
(advice-add #'lsp-completion-at-point :around #'cape-wrap-nonexclusive)
(advice-add #'pcomplete-completions-at-point :around #'cape-wrap-nonexclusive)
;; From the `cape' readme. Without this, Eshell autocompletion is broken on
;; Emacs28.
(when (< emacs-major-version 29)
(advice-add 'pcomplete-completions-at-point :around #'cape-wrap-silent)
(advice-add 'pcomplete-completions-at-point :around #'cape-wrap-purify))
(advice-add #'lsp-completion-at-point :around #'cape-wrap-noninterruptible))
(use-package! yasnippet-capf
:when (modulep! :editor snippets)
:defer t
:init
(add-hook! yas-minor-mode
(add-hook 'completion-at-point-functions #'yasnippet-capf 30 t)))
(use-package! corfu-terminal
:when (not (display-graphic-p))
:hook (corfu-mode . corfu-terminal-mode))
;;
;;; Extensions
(use-package! corfu-history
:hook (corfu-mode . corfu-history-mode)
:config
(after! savehist (add-to-list 'savehist-additional-variables 'corfu-history)))
(use-package! corfu-popupinfo
:hook (corfu-mode . corfu-popupinfo-mode)
:config
(setq corfu-popupinfo-delay '(0.5 . 1.0))
(map! :map corfu-map
"C-<up>" #'corfu-popupinfo-scroll-down
"C-<down>" #'corfu-popupinfo-scroll-up
"C-S-p" #'corfu-popupinfo-scroll-down
"C-S-n" #'corfu-popupinfo-scroll-up
"C-h" #'corfu-popupinfo-toggle)
(map! :when (modulep! :editor evil)
:map corfu-popupinfo-map
;; Reversed because popupinfo assumes opposite of what feels intuitive
;; with evil.
"C-S-k" #'corfu-popupinfo-scroll-down
"C-S-j" #'corfu-popupinfo-scroll-up))