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voicemacs-extend-company.el
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voicemacs-extend-company.el
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(require 'company)
(require 'company-quickhelp)
(require 'cl)
(require 'el-patch)
(require 'voicemacs-base)
(require 'voicemacs-lib)
;; TODO: Maybe remove? Might be useful as an exposed method but not using it to
;; sync.
(defun voicemacs-company-prompt-open? ()
"Is the company prompt open?"
(bound-and-true-p company-candidates))
(defconst voicemacs--company-prompt-key 'company-prompt-open
"Voicemacs sync key to indicate whether the company prompt is open.")
(defun voicemacs--update-company-prompt-t (&rest _)
(voicemacs--update-if-changed voicemacs--company-prompt-key t))
(defun voicemacs--update-company-prompt-false (&rest _)
(voicemacs--update-if-changed voicemacs--company-prompt-key :json-false))
(defun voicemacs--enable-sync-company-prompt ()
(add-hook 'company-completion-started-hook 'voicemacs--update-company-prompt-t)
(add-hook 'company-after-completion-hook 'voicemacs--update-company-prompt-false)
;; Sync current state immediately.
(company-cancel)
(voicemacs--update-company-prompt-false))
(defun voicemacs--disable-sync-company-prompt ()
(remove-hook 'company-completion-started-hook 'voicemacs--update-company-prompt-t)
(remove-hook 'company-after-completion-hook 'voicemacs--update-company-prompt-false)
(voicemacs--update-if-changed voicemacs--company-prompt-key :json-null))
;; This doesn't use the `it-define-sync' macro because it doesn't use a single
;; sync func.
(voicemacs--sync-add 'voicemacs--enable-sync-company-prompt
'voicemacs--disable-sync-company-prompt)
(defun voicemacs-company-highlight (number)
"Move selection to a numbered company candidate."
(interactive "p")
(if (called-interactively-p 'any)
(company-set-selection (+ company-tooltip-offset (- number 1)) t)
;; HACK: `company-set-selection' has to be called interactively, or the
;; selection won't show visually.
(let ((current-prefix-arg number))
;; FIXME: This trick no longer works everywhere.
(call-interactively 'voicemacs-company-highlight))))
(defun voicemacs-company-pop-doc (number)
"Show the `company-quickdoc' for a numbered candidate."
(interactive "p")
(voicemacs-company-highlight number)
(company-quickhelp--show))
(defun voicemacs-company-complete (number)
"Insert a company candidate by `NUMBER'.
Like `company-complete-number', but gives visual feedback."
(interactive "p")
(voicemacs-company-highlight number)
;; Briefly hold with the candidate highlighted for visual feedback
(sit-for 0.1)
(company-complete))
(voicemacs-expose-function 'voicemacs-company-highlight)
(voicemacs-expose-function 'voicemacs-company-complete)
(voicemacs-expose-function 'voicemacs-company-pop-doc)
(defvar voicemacs--current-company-number 1
"The number of the last listed company candidate.")
;; TODO: PR `company-mode' for this functionality
(defun voicemacs-company-fill-propertize (original-function
&optional value annotation
width selected left right)
"Intercept `company-fill-propertize' to number more candidates."
;; This is hard-coded to format correctly only with numbers up to double
;; digits.
(when (and company-show-numbers
;; It'll crash if we try and put an empty `right' through this process
right
;; Number display method is different in company mode - we handle it elsewhere
(not (bound-and-true-p company-box-mode)))
(let ((original-number (string-to-number right)))
;; Get the new number
(if (= 1 original-number)
(setq voicemacs--current-company-number 1)
(cl-incf voicemacs--current-company-number))
;; Segments that were un-numbered need to be narrowed to stop the prompt
;; distorting.
(when (and (= original-number 0)
(not (= voicemacs--current-company-number 10)))
(cl-decf width 2))
;; FIXME: cuts off last char of completion.
(cl-decf width)
;; Create our own numbering and spacing
(setq right (concat (voicemacs--pad-string (number-to-string
voicemacs--current-company-number)
3)
(company-space-string company-tooltip-margin)))))
(funcall original-function value annotation width selected left right))
(defvar voicemacs--company-original-show-numbers nil
"Stores the original value of `company-show-numbers'.
Used to store the value before
`voicemacs-company-more-numbers-mode' was activated, so it can be
restored when the mode is deactivated.")
(defun voicemacs--company-numbers-setup ()
"Teardown for `voicemacs-company-more-numbers-mode'."
(setq voicemacs--company-original-show-numbers (default-value company-show-quick-access))
(setq-default company-show-quick-access t)
(advice-add 'company-fill-propertize :around 'voicemacs-company-fill-propertize))
(defun voicemacs--company-numbers-teardown ()
"Teardown for `voicemacs-company-more-numbers-mode'."
(setq-default company-show-quick-access voicemacs--company-original-show-numbers)
(advice-remove 'company-fill-propertize 'voicemacs-company-fill-propertize))
(define-minor-mode voicemacs-company-more-numbers-mode
"Hacks Company to number more than the first 10 candidates."
:group 'voicemacs
:global t
:lighter nil
:after-hook (if voicemacs-company-more-numbers-mode
(voicemacs--company-numbers-setup)
(voicemacs--company-numbers-teardown)))
(el-patch-feature company-box)
(with-eval-after-load 'company-box
;; HACK: Outright redefine how company box shows numbers to allow numbers greater than 0-9
;; (el-patch-defun company-box--update-numbers (start)
;; (let ((side (if (eq company-show-quick-access 'left) 'left-margin 'right-margin))
;; (inhibit-redisplay t)
;; (inhibit-modification-hooks t))
;; (company-box--remove-numbers side)
;; (dotimes (index company-box-max-candidates)
;; (-some--> start
;; (if (get-text-property it 'company-box--number-pos)
;; it
;; (next-single-property-change it 'company-box--number-pos))
;; (progn
;; (push it company-box--numbers-pos)
;; (setq start (1+ it)))
;; (put-text-property (1- it) it 'display `((margin ,side) ,(int-to-string (1+ index))))))))
(el-patch-defun company-box--update-numbers (start)
(let ((side (if (eq company-show-quick-access 'left) 'left-margin 'right-margin))
(el-patch-remove (offset (if (eq company-show-quick-access 'left) 0 10)))
(inhibit-redisplay t)
(inhibit-modification-hooks t))
(company-box--remove-numbers side)
(dotimes (index (el-patch-swap 10 company-box-max-candidates))
(-some--> start
(if (get-text-property it 'company-box--number-pos)
it
(next-single-property-change it 'company-box--number-pos))
(progn
(push it company-box--numbers-pos)
(setq start (1+ it)))
(put-text-property (1- it) it 'display `((margin ,side) ,(el-patch-swap (aref company-box--numbers (+ index offset))
(int-to-string (1+ index)))))))))
)
;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun voicemacs-company-apply-recommended-defaults ()
"Apply recommended default settings for `company-mode'."
(setq-default company-show-numbers t
company-tooltip-limit 30
company-minimum-prefix-length 1))
(provide 'voicemacs-extend-company)
;;; voicemacs-extend-company ends here