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company-box.el
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;;; company-box.el --- Company front-end with icons -*- lexical-binding: t -*-
;; Copyright (C) 2018 Sebastien Chapuis
;; Author: Sebastien Chapuis <sebastien@chapu.is>
;; URL: https://github.com/sebastiencs/company-box
;; Keywords: company, completion, front-end, convenience
;; Package-Requires: ((emacs "26.0.91") (dash "2.13") (dash-functional "1.2.0") (company "0.9.6") (frame-local "0.0.1"))
;; Version: 0.0.1
;;; License
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
;; Floor, Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; A company front-end
;;
;; Differences with the built-in front-end:
;;
;; - Different colors for differents backends.
;; - Icons associated to functions/variables/.. and their backends
;; - Display candidate's documentation (support quickhelp-string)
;; - Not limited by the current window size, buffer's text properties, ..
;; (it's better than you might think)
;;
;; This package requires Emacs 26.
;; Also, not compatible with Emacs in a tty.
;;
;;
;; Installation:
;;
;; With use-package:
;; (use-package company-box
;; :hook (company-mode . company-box-mode))
;; Or:
;; (require 'company-box)
;; (add-hook 'company-mode-hook 'company-box-mode)
;;
;; To customize:
;; M-x customize-group [RET] company-box [RET]
;;
;;
;; For more informations, see the homepage:
;; https://github.com/sebastiencs/company-box
;;; Code:
(require 'subr-x)
(require 'dash)
(require 'dash)
(require 'company)
(require 'company-box-icons)
(require 'company-box-doc)
(require 'frame-local)
(defgroup company-box nil
"Front-end for Company."
:prefix "company-box-"
:group 'company)
(define-obsolete-face-alias 'company-box-annotation 'company-tooltip-annotation nil)
(define-obsolete-face-alias 'company-box-selection 'company-tooltip-selection nil)
(define-obsolete-face-alias 'company-box-background 'company-tooltip nil)
(define-obsolete-face-alias 'company-box-candidate 'company-tooltip nil)
(define-obsolete-face-alias 'company-box-numbers 'company-tooltip nil)
(make-obsolete-variable 'company-box-max-candidates nil "")
(make-obsolete-variable 'company-box-tooltip-minimum-width 'company-tooltip-minimum-width nil "")
(make-obsolete-variable 'company-box-tooltip-maximum-width 'company-tooltip-maximum-width nil "")
(defface company-box-candidate
'((((background light)) :foreground "black")
(t :foreground "white"))
"Face used to color candidates."
:group 'company-box)
(defface company-box-annotation
'((t :inherit company-tooltip-annotation))
"Face used to color annotations."
:group 'company-box)
(defface company-box-selection
'((t :inherit company-tooltip-selection :extend t))
"Face used to color the selected candidate."
:group 'company-box)
(defface company-box-background
'((t :inherit company-tooltip))
"Face used for frame's background.
Only the 'background' color is used in this face."
:group 'company-box)
(defface company-box-scrollbar
'((t :inherit company-tooltip-selection))
"Face used for the scrollbar.
Only the 'background' color is used in this face."
:group 'company-box)
(defface company-box-numbers
'((t :inherit company-box-candidate))
"Face used for numbers when `company-show-quick-access' is used."
:group 'company-box)
(defcustom company-box-color-icon t
"Whether or not to color icons.
Note that icons from images cannot be colored."
:type 'boolean
:group 'company-box)
(defcustom company-box-enable-icon t
"Whether or not to display icons."
:type 'boolean
:group 'company-box)
(defcustom company-box-max-candidates 100
"Maximum number of candidates.
A big number might slowndown the rendering.
To change the number of _visible_ chandidates, see `company-tooltip-limit'"
:type 'integer
:group 'company-box)
(defcustom company-box-tooltip-minimum-width 60
"`company-box' minimum width."
:type 'integer
:group 'company-box)
(defcustom company-box-tooltip-maximum-width 260
"`company-box' maximum width."
:type 'integer
:group 'company-box)
(defcustom company-box-show-single-candidate 'always
"Whether or not to display the candidate if there is only one.
`when-no-other-frontend' will display the candidate if no other front ends are
detected."
:type '(choice (const :tag "when-no-other-frontend" when-no-other-frontend)
(const :tag "never" never)
(const :tag "always" always))
:group 'company-box)
(defcustom company-box-icons-functions
'(company-box-icons--yasnippet company-box-icons--lsp company-box-icons--eglot company-box-icons--elisp company-box-icons--acphp company-box-icons--cider)
"Functions to call on each candidate that should return an icon.
The functions takes 1 parameter, the completion candidate.
It should return an ICON or nil.
An ICON can be either a SYMBOL, an IMAGE, a LIST, a STRING:
- SYMBOL: It is the name of the icon (from `company-box--icons-in-terminal').
- IMAGE: An image descriptor [1]
Example: '(image :type png :file \"/path/to/image.png\")
- LIST: The list is then `apply' to `company-box--icons-in-terminal' function.
Example: '(fa_icon :face some-face :foreground \"red\")
- STRING: A simple string which is inserted, should be of length 1
If a function returns nil, it call the next function in the list.
If all functions returns nil, `company-box-icons-unknown' is used.
[1] https://www.gnu.org/software/emacs/manual/html_node/elisp/Image-Descriptors.html"
:type 'list
:group 'company-box)
(defcustom company-box-scrollbar t
"Whether to draw the custom scrollbar or use default scrollbar.
- t means uses the custom scrollbar
- 'inherit uses same scrollbar than the current frame
- 'left or 'right puts default scrollbars to the left or right
- nil means draw no scrollbar."
:type '(choice (const :tag "Custom scrollbar" t)
(const :tag "Inherit scrollbar" 'inherit)
(const :tag "Default scrollbar on left" 'left)
(const :tag "Default scrollbar on right" 'right)
(const :tag "No scrollbar" nil))
:group 'company-box)
(defcustom company-box-frame-behavior 'default
"Change frame position behavior."
:type '(choice (const :tag "Default" 'default)
(const :tag "Follow point as you type" 'point))
:group 'company-box)
(defcustom company-box-icon-right-margin 0
"Set the space between the icon and the candidate text. It can be an integer
or a float number. For example, set `1' to add a space thats width is equal to a
character (see `frame-char-width'), set `0.5' to get half width of a character."
:type 'number
:group 'company-box)
(make-obsolete-variable 'company-box-highlight-prefix nil nil)
(defcustom company-box-highlight-prefix nil
"[OBSOLETE] Highlight the prefix instead of common.
Faces used are `company-tooltip-common' and `company-tooltip-common-selection'
for both cases."
:type 'boolean
:safe #'booleanp
:group 'company-box)
(defvar company-box-backends-colors
'((company-yasnippet . (:all "lime green" :selected (:background "lime green" :foreground "black"))))
"List of colors to use for specific backends.
Each element has the form (BACKEND . COLOR)
BACKEND is the backend's symbol for which the color applies
COLOR can be a LIST or a STRING:
- LIST: A property list with the following keys:
`:candidate' : Color to use on the candidate
`:annotation' : Color to use on the annotation
`:icon' : Color to use on the icon. Does nothing if the
icon is an image.
`:all' : Replace (:candidate X :annotation X :icon X)
For those 4 attributes, values can be a face, a plist
or a string (a color)
`:selected' : Color to use when the candidate is selected.
It can be a plist or a face, not a string.
It needs to define the background and foreground colors
- STRING: A color string which is used everywhere
(similar to (:all \"red\"))
Examples:
'((company-yasnippet . (:candidate \"yellow\" :annotation some-face))
(company-elisp . (:icon \"yellow\" :selected (:background \"orange\"
:foreground \"black\")))
(company-dabbrev . \"purple\"))")
(defvar company-box-frame-parameters
'((left . -1)
(no-accept-focus . t)
(no-focus-on-map . t)
(min-width . 0)
(width . 0)
(min-height . 0)
(height . 0)
(internal-border-width . 1)
(horizontal-scroll-bars . nil)
(left-fringe . 0)
(right-fringe . 0)
(menu-bar-lines . 0)
(tool-bar-lines . 0)
(line-spacing . 0)
;; (unsplittable . nil)
(undecorated . t)
(top . -1)
(visibility . nil)
(mouse-wheel-frame . nil)
(no-other-frame . t)
(cursor-type . nil)
(drag-internal-border . t)
(left-fringe . 0)
(right-fringe . 0)
(no-special-glyphs . t))
"Frame parameters used to create the frame.")
(defvar company-box-debug-scrollbar nil)
(defvar-local company-box--ov nil)
(defvar-local company-box--ov-common nil)
(defvar-local company-box--max 0)
(defvar-local company-box--with-icons-p nil)
(defvar-local company-box--x nil)
(defvar-local company-box--top nil)
(defvar-local company-box--space nil)
(defvar-local company-box--height nil)
(defvar-local company-box--scrollbar-window nil)
(defvar-local company-box--parent-buffer nil)
(defvar-local company-box--chunk-size 0)
(defconst company-box--numbers
(let ((vec (make-vector 20 nil)))
(dotimes (index 20)
(aset vec index
(concat
(string-trim (funcall company-quick-access-hint-function (mod (1+ index) 10)))
(and (> index 10) " "))))
vec))
(defvar company-box-selection-hook nil
"Hook run when the selection changed.")
(defalias 'company-box--icons-in-terminal
(if (require 'icons-in-terminal nil t)
'icons-in-terminal
(lambda (&rest _) " ")))
(defun company-box--get-frame (&optional frame)
"Return the company-box child frame on FRAME."
(frame-local-getq company-box-frame frame))
(defsubst company-box--set-frame (frame)
"Set the frame symbol ‘company-box-frame’ to FRAME."
(frame-local-setq company-box-frame frame))
(defun company-box--get-id nil
(or (frame-local-getq company-box-buffer-id)
(frame-local-setq company-box-buffer-id (or (frame-parameter nil 'window-id)
(frame-parameter nil 'name)))))
(defun company-box--get-buffer (&optional suffix)
"Construct the buffer name, it should be unique for each frame."
(get-buffer-create
(concat " *company-box-" (company-box--get-id) suffix "*")))
(defun company-box--with-icons-p nil
(let ((spaces (+ (- (current-column) (string-width company-prefix))
(/ (or (car (nth 2 (posn-at-point (line-beginning-position)))) 0)
(frame-char-width))
(car (window-edges nil t)))))
(setq company-box--space spaces)
(and company-box-enable-icon
(> spaces 1))))
(defun company-box--make-scrollbar-parameter nil
(cond ((eq company-box-scrollbar 'inherit) (frame-parameter nil 'vertical-scroll-bars))
((eq company-box-scrollbar 'left) 'left)
((eq company-box-scrollbar 'right) 'right)))
(defun company-box--make-frame (&optional buf)
(let* ((after-make-frame-functions nil)
(display-buffer-alist nil)
(before-make-frame-hook nil)
(buffer (or buf (company-box--get-buffer)))
(params (append company-box-frame-parameters
`((vertical-scroll-bars . ,(company-box--make-scrollbar-parameter))
(default-minibuffer-frame . ,(selected-frame))
(minibuffer . ,(minibuffer-window))
(inhibit-double-buffering . t)
(background-color . ,(face-background 'company-tooltip nil t)))))
(window (display-buffer-in-child-frame buffer `((child-frame-parameters . ,params))))
(frame (window-frame window)))
(frame-local-setq company-box-buffer buffer frame)
(set-frame-parameter frame 'desktop-dont-save t)
(unless buf
(frame-local-setq company-box-window window))
(set-window-dedicated-p window t)
(redirect-frame-focus frame (frame-parent frame))
(set-frame-parameter frame 'name "")
frame))
(defun company-box--get-ov nil
(or company-box--ov
(setq company-box--ov (make-overlay 1 1))))
(defun company-box--get-ov-common nil
(or company-box--ov-common
(setq company-box--ov-common (make-overlay 1 1))))
(defun company-box--extract-background (color)
"COLOR can be a string, face or plist."
`(:background
,(or (and (stringp color) color)
(and (facep color) (face-background color nil t))
(let ((back (plist-get color :background)))
(if (facep back) (face-background back nil t) back)))))
(defun company-box--update-image (&optional color)
"Change the image background color, because the overlay doesn't apply on it.
The function either restore the original image or apply the COLOR.
It doesn't nothing if a font icon is used."
(-when-let* ((bol (line-beginning-position))
(point (text-property-any bol (min (+ bol 2) (point-max)) 'company-box-image t))
(image (get-text-property point 'display-origin))
(new-image (append image (and color (company-box--extract-background color)))))
(put-text-property point (1+ point) 'display new-image)))
(defvar-local company-box--numbers-pos nil)
(defun company-box--remove-numbers (&optional side)
(let ((side (or side (if (eq company-show-quick-access 'left) 'left-margin 'right-margin)))
(max (point-max)))
(--each company-box--numbers-pos
(and (< it max)
(get-text-property it 'company-box--number-pos)
(put-text-property it (1+ it) 'display `((margin ,side) " "))))
(setq company-box--numbers-pos nil)))
(defun company-box--update-numbers (start)
(let ((side (if (eq company-show-quick-access 'left) 'left-margin 'right-margin))
(offset (if (eq company-show-quick-access 'left) 0 10))
(inhibit-redisplay t)
(inhibit-modification-hooks t))
(company-box--remove-numbers side)
(dotimes (index 10)
(-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) ,(aref company-box--numbers (+ index offset))))))))
(defun company-box--maybe-move-number (start)
(when company-show-quick-access
(company-box--update-numbers start)))
(defvar-local company-box--last-scroll 0)
(defvar-local company-box--last-start nil)
(defun company-box--handle-scroll (_win new-start)
(setq company-box--last-start new-start)
(when company-box--x
(when (>= (abs (- company-box--last-scroll (or company-selection 0)))
company-box--chunk-size)
(company-box--ensure-full-window-is-rendered new-start))
(setq company-box--last-scroll (or company-selection 0))
(company-box--maybe-move-number new-start)
(company-box--set-width new-start)))
(defun company-box--move-overlay-no-selection nil
(goto-char 1)
(move-overlay (company-box--get-ov) 1 1)
(move-overlay (company-box--get-ov-common) 1 1))
(defun company-box--end-of-common (start eol)
(while (let ((face (get-text-property start 'face)))
(and (or (eq face 'company-tooltip-common)
(and (listp face)
(memq 'company-tooltip-common face)))
(not (eq start eol))))
(setq start (next-single-property-change start 'face nil eol)))
start)
(defun company-box--move-overlays (selection &optional new-point)
(if (null selection)
(company-box--move-overlay-no-selection)
(company-box--update-image)
(goto-char (if new-point new-point (company-box--point-at-line selection)))
(let* ((bol (line-beginning-position))
(eol (line-beginning-position 2))
(inhibit-modification-hooks t)
(start-common (next-single-property-change bol 'company-box--candidate-string nil eol))
(end-common (company-box--end-of-common start-common eol)))
(move-overlay (company-box--get-ov) bol eol)
(move-overlay (company-box--get-ov-common) start-common end-common))
(let ((color (or (get-text-property (point) 'company-box--color)
'company-tooltip-selection))
(inhibit-modification-hooks t))
(overlay-put (company-box--get-ov) 'face color)
(overlay-put (company-box--get-ov-common) 'face 'company-tooltip-common-selection)
(company-box--update-image color))))
(defun company-box--get-candidates-between (start end)
(let ((index 0)
(vector (make-vector (max (- end start) 1) nil)))
(while (< start end)
(-when-let* ((candidate (get-text-property start 'company-box-candidate)))
(aset vector index candidate)
(setq index (1+ index)))
(setq start (1+ start)))
;; Return nil when the vector is empty
(and (aref vector 0) vector)))
(defvar-local company-box--first-render nil)
(defun company-box--get-start (point height)
(previous-single-property-change
(1+ point) 'company-box--rendered nil (max 1 (- point height))))
(defun company-box--get-end (point height)
(next-single-property-change
point 'company-box--rendered nil (min (point-max) (+ point height))))
(defun company-box--render-lines (point &optional no-remove-numbers)
(when-let* ((height (1+ company-box--chunk-size))
(start (company-box--get-start point height))
(end (company-box--get-end point height))
(candidates (company-box--get-candidates-between start end))
(inhibit-modification-hooks t)
(inhibit-redisplay t))
(unless no-remove-numbers
(company-box--remove-numbers))
(save-excursion
(delete-region start end)
(goto-char start)
(insert
(with-current-buffer company-box--parent-buffer
(--> candidates
(mapcar (-compose 'company-box--make-line 'company-box--make-candidate) it)
(mapconcat 'identity it "\n")))
"\n")
(put-text-property start (point) 'company-box--rendered t))))
(defun company-box--render-buffer (string on-update)
(let ((buffer (current-buffer))
(inhibit-modification-hooks t)
(candidates-length company-candidates-length)
(show-numbers company-show-quick-access)
(with-icons-p company-box--with-icons-p)
(window-configuration-change-hook nil)
(buffer-list-update-hook nil))
(with-current-buffer (company-box--get-buffer)
(erase-buffer)
(insert string)
(put-text-property (point-min) (point-max) 'company-box--rendered nil)
(setq company-box--first-render t
company-candidates-length candidates-length
company-show-quick-access show-numbers
company-box--with-icons-p with-icons-p)
(unless on-update
(setq mode-line-format nil
header-line-format nil
display-line-numbers nil
truncate-lines t
show-trailing-whitespace nil
company-box--parent-buffer buffer
company-box--first-render t
cursor-in-non-selected-windows nil)
(setq-local scroll-step 1)
(setq-local scroll-conservatively 100000)
(setq-local scroll-margin 0)
(setq-local bidi-display-reordering nil)
(setq-local redisplay--inhibit-bidi t)
;; (setq-local next-screen-context-lines 0)
(setq-local scroll-preserve-screen-position t)
(setq-local fontification-functions nil)
(setq-local window-scroll-functions '(company-box--handle-scroll))
;; (setq-local pre-redisplay-function '(company-box--handle-state-changed))
;; (setq-local pre-redisplay-functions '(company-box--handle-state-changed))
;;(setq-local window-state-change-functions '(company-box--handle-state-changed))
;;(setq-local window-state-change-hook '(company-box--handle-state-changed))
;; (setq-local company-box--chunk-size (or 10 (frame-height) 50))
;; (jit-lock-mode 1)
(add-hook 'window-configuration-change-hook 'company-box--prevent-changes t t)
))))
(defvar-local company-box--bottom nil)
(defun company-box--point-bottom nil
(or company-box--bottom
(setq company-box--bottom
(let* ((win (let ((tmp nil))
(while (window-in-direction 'below tmp)
(setq tmp (window-in-direction 'below tmp)))
tmp)))
(+ (or (nth 2 (window-line-height 'mode-line win))
(- (frame-pixel-height) (* (frame-char-height) 3)))
(or (and win (nth 1 (window-edges win t nil t)))
0))))))
(defvar-local company-box--prefix-pos nil)
(defvar-local company-box--edges nil)
(defun company-box--prefix-pos nil
(if (eq company-box-frame-behavior 'point)
(nth 2 (posn-at-point (point)))
(or company-box--prefix-pos
(setq company-box--prefix-pos
(nth 2 (posn-at-point (- (point) (length company-prefix))))))))
(defun company-box--edges nil
(or company-box--edges
(setq company-box--edges (window-edges nil t nil t))))
(defun company-box--compute-frame-position (frame)
(-let* ((window-configuration-change-hook nil)
((left top _right _bottom) (company-box--edges))
(window-tab-line-height (if (fboundp 'window-tab-line-height)
(window-tab-line-height)
0))
(top (+ top window-tab-line-height))
(char-height (frame-char-height frame))
(char-width (frame-char-width frame))
(height (* (min company-candidates-length company-tooltip-limit) char-height))
(space-numbers (if (eq company-show-quick-access 'left) char-width 0))
(frame-resize-pixelwise t)
(mode-line-y (company-box--point-bottom))
((p-x . p-y) (company-box--prefix-pos))
(p-y-abs (+ top p-y))
(y (or (and (> p-y-abs (/ mode-line-y 2))
(<= (- mode-line-y p-y) (+ char-height height))
(> (- p-y-abs height) 0)
(- p-y height))
(+ p-y char-height)))
(height (or (and (> y p-y)
(> height (- mode-line-y y))
(- mode-line-y y))
height))
(height (- height (mod height char-height)))
(scrollbar-width (if (eq company-box-scrollbar 'left) (frame-scroll-bar-width frame) 0))
(x (if (eq company-box-frame-behavior 'point)
p-x
(if company-box--with-icons-p
(- p-x (* char-width (if (= company-box--space 2) 2 3)) space-numbers scrollbar-width)
(- p-x (if (= company-box--space 0) 0 char-width) space-numbers scrollbar-width)))))
(setq company-box--x (max (+ x left) 0)
company-box--top (+ y top)
company-box--height height
company-box--chunk-size (/ height char-height))
(with-current-buffer (company-box--get-buffer)
(setq company-box--x (max (+ x left) 0)
company-box--top (+ y top)
company-box--height height
company-box--chunk-size (/ height char-height)))))
(defun company-box--update-frame-position (frame)
(-let (((new-x . width) (company-box--set-width nil t))
(window-configuration-change-hook nil)
(buffer-list-update-hook nil)
(inhibit-redisplay t))
(frame-local-setq company-box-window-origin (selected-window) frame)
(frame-local-setq company-box-buffer-origin (current-buffer) frame)
(modify-frame-parameters
frame
`((width . (text-pixels . ,width))
(height . (text-pixels . ,company-box--height))
(user-size . t)
(left . (+ ,(or new-x company-box--x)))
(top . (+ ,company-box--top))
(user-position . t)
(right-fringe . 0)
(left-fringe . 0)))))
(defun company-box--display (string on-update)
"Display the completions."
(company-box--render-buffer string on-update)
(unless (company-box--get-frame)
(company-box--set-frame (company-box--make-frame)))
(company-box--compute-frame-position (company-box--get-frame))
(company-box--move-selection t)
(company-box--update-frame-position (company-box--get-frame))
(unless (frame-visible-p (company-box--get-frame))
(make-frame-visible (company-box--get-frame)))
(company-box--update-scrollbar (company-box--get-frame) t)
(with-current-buffer (company-box--get-buffer)
(company-box--maybe-move-number (or company-box--last-start 1))))
(defun company-box--get-kind (candidate)
(let ((list company-box-icons-functions)
kind)
(while (and (null kind) list)
(setq kind (funcall (car list) candidate))
(pop list))
(or kind 'Unknown)))
(defun company-box--get-icon (icon)
(cond ((listp icon)
(cond ((eq 'image (car icon))
(unless (plist-get icon :height)
(setq icon (append icon `(:height ,(round (* (frame-char-height) 0.90))))))
(propertize " " 'display icon 'company-box-image t
'display-origin icon))
((and company-box-color-icon icon)
(apply 'company-box--icons-in-terminal icon))
(t (company-box--icons-in-terminal (or (car icon) 'fa_question_circle)))))
((symbolp icon)
(company-box--icons-in-terminal (or icon 'fa_question_circle)))
(t icon)))
(defun company-box--add-icon (candidate)
(-let* ((icon (alist-get (company-box--get-kind candidate)
(symbol-value company-box-icons-alist)))
(is-image (and (listp icon) (eq 'image (car icon))))
(icon-string (company-box--get-icon icon))
(display-props (unless is-image (get-text-property 0 'display icon-string))))
(concat
(cond (is-image icon-string)
(display-props
;; The string already has a display prop, add height to it
(--> (if (listp (car display-props))
(append display-props '((height 0.95)))
(append `(,display-props) '((height 0.95))))
(put-text-property 0 (length icon-string) 'display it icon-string))
icon-string)
(t
;; Make sure the string is not bigger than other text.
;; It causes invalid computation of the frame size, ..
(put-text-property 0 (length icon-string) 'display '((height 0.95)) icon-string)
icon-string))
(propertize " " 'display `(space :align-to (+ company-box-icon-right-margin
left-fringe
,(if (> company-box--space 2) 3 2)))))))
(defun company-box--get-color (backend)
(alist-get backend company-box-backends-colors))
(defun company-box--resolve-color (color key)
(or (and (stringp color) color)
(and (listp color) (or (plist-get color key) (plist-get color :all)))))
(defun company-box--resolve-colors (color)
(when color
(list
(company-box--resolve-color color :candidate)
(company-box--resolve-color color :annotation)
(company-box--resolve-color color :icon)
(let ((color (company-box--resolve-color color :selected)))
(unless (stringp color)
color)))))
(defun company-box--apply-color (string color)
(when color
(add-face-text-property 0 (length string)
(if (stringp color) (list :foreground color) color)
nil string))
string)
(defun company-box--candidate-string (candidate length-candidate)
(let* ((company-tooltip-align-annotations nil)
(company-tooltip-margin 0)
(company-candidates nil)
(string (-> (company--clean-string candidate)
(company-fill-propertize nil length-candidate nil nil nil))))
(add-text-properties 0 (length string) '(company-box--candidate-string t) string)
string))
(defun company-box--make-number-prop nil
(let ((side (if (eq company-show-quick-access 'left) 'left-margin 'right-margin)))
(propertize " " 'company-box--number-pos t 'display `((margin ,side) " "))))
(defun company-box--make-line (candidate)
(-let* (((candidate annotation len-c len-a backend) candidate)
(color (company-box--get-color backend))
((c-color a-color i-color s-color) (company-box--resolve-colors color))
(icon-string (and company-box--with-icons-p (company-box--add-icon candidate)))
(candidate-string (company-box--candidate-string candidate len-c))
(align-string (when annotation
(concat " " (and company-tooltip-align-annotations
(propertize " " 'display `(space :align-to (- right-margin ,len-a 1)))))))
(space company-box--space)
(icon-p company-box-enable-icon)
(annotation-string (and annotation (propertize annotation 'face 'company-tooltip-annotation)))
(line (concat (unless (or (and (= space 2) icon-p) (= space 0))
(propertize " " 'display `(space :width ,(if (or (= space 1) (not icon-p)) 1 0.75))))
(company-box--apply-color icon-string i-color)
(when company-show-quick-access
(company-box--make-number-prop))
(company-box--apply-color candidate-string c-color)
align-string
(company-box--apply-color annotation-string a-color)
;; Trick to make sure the selection face goes until the end, even without :extend
(propertize " " 'display `(space :align-to right-fringe))))
(len (length line)))
(add-text-properties 0 len (list 'company-box--len (+ len-c len-a)
'company-box--color s-color
'mouse-face 'company-tooltip-mouse)
line)
line))
(defun company-box--backend (candidate)
(or (get-text-property 0 'company-backend candidate)
(and (symbolp company-backend) company-backend)
(--first (and it (not (keywordp it))) company-backend)))
(defun company-box--make-candidate (candidate)
(let* ((annotation (-some->> (company-call-backend 'annotation candidate)
(replace-regexp-in-string "[ \t\n\r]+" " ")
(string-trim)))
(len-candidate (string-width candidate))
(len-annotation (if annotation (string-width annotation) 0))
(len-total (+ len-candidate len-annotation))
(backend (company-box--backend candidate)))
(when (> len-total company-box--max)
(setq company-box--max len-total))
(list candidate
annotation
len-candidate
len-annotation
backend)))
(defvar-local company-box--parent-start nil)
(defun company-box-show (&optional on-update)
(unless on-update
(setq company-box--parent-start (window-start))
(add-hook 'window-scroll-functions 'company-box--handle-scroll-parent nil t))
(company-box--save)
(setq company-box--max 0
company-box--with-icons-p (company-box--with-icons-p))
(let ((string (make-string company-candidates-length 10)))
(--each-indexed company-candidates
(put-text-property it-index (1+ it-index) 'company-box-candidate it string))
(company-box--display string on-update)))
(defvar company-box-hide-hook nil)
(defun company-box-hide nil
(setq company-box--bottom nil
company-box--x nil
company-box--prefix-pos nil
company-box--last-start nil
company-box--edges nil)
(-some-> (company-box--get-frame)
(make-frame-invisible))
(with-current-buffer (company-box--get-buffer)
(setq company-box--last-start nil))
(remove-hook 'window-scroll-functions 'company-box--handle-scroll-parent t)
(run-hook-with-args 'company-box-hide-hook (or (frame-parent) (selected-frame))))
(defun company-box--calc-len (buffer start end char-width)
(let ((max 0))
(with-current-buffer buffer
(save-excursion
(goto-char start)
(while (< (point) end)
(let ((len (or (get-text-property (point) 'company-box--len) 0)))
(when (> len max)
(setq max len)))
(forward-line))))
(* (+ max (if company-box--with-icons-p 6 2) (if company-show-quick-access 2 0))
char-width)))
(defun company-box--get-start-end-for-width (win win-start)
(let ((height company-box--chunk-size)
(selection (or company-selection 0))
(box-buffer (window-buffer win)))
(if win-start
(cons win-start (with-current-buffer box-buffer
(company-box--point-at-line height win-start)))
;; When window-start is not known, we take the points (selection - height)
;; and (selection + height)
(with-current-buffer box-buffer
(let ((start (company-box--point-at-line (- selection height))))
(cons start (company-box--point-at-line height start)))))))
(defun company-box--set-width (&optional win-start value-only)
(-let* ((inhibit-redisplay t)
(frame (company-box--get-frame (frame-parent)))
(window (frame-local-getq company-box-window (frame-parent)))
(char-width (frame-char-width frame))
((start . end) (company-box--get-start-end-for-width window win-start))
(width (+ (company-box--calc-len (window-buffer window) start end char-width)
(if (and (eq company-box-scrollbar t) (company-box--scrollbar-p frame)) (* 2 char-width) 0)
char-width))
(width (max (min width
(* company-tooltip-maximum-width char-width))
(* company-tooltip-minimum-width char-width)))
(diff (abs (- (frame-pixel-width frame) width)))
(frame-width (frame-pixel-width (frame-parent)))
(new-x (and (> (+ width company-box--x) frame-width)
(max 0 (- frame-width width char-width)))))
(when company-box-debug-scrollbar
(message "[RESIZE] NEW-WIDTH=%s NEW-PIXEL=%s OLD=%s OLD-PIXEL=%s"
(/ width char-width) width (frame-parameter frame 'width) (frame-pixel-width frame)))
(or (and value-only (cons new-x width))
(and (> diff 2)
(modify-frame-parameters
frame
`((width . (text-pixels . ,width))
(left . (+ ,(or new-x company-box--x)))))))))
(defun company-box--percent (a b)
(/ (float a) (float b)))
(defun company-box--scrollbar-p (frame)
(/= 1 (company-box--percent
company-box--height
(* company-candidates-length
(frame-char-height frame)))))
(defun company-box--scrollbar-prevent-changes (&rest _)
(when company-box-debug-scrollbar
(message "[CHANGES] CURRENT-BUFFER=%s MIN-WIDTH=%s SAFE-MIN-WIDTH=%s MIN-SIZE=%s MIN-SIZE-IGNORE=%s"
(current-buffer) window-min-width window-safe-min-width
(window-min-size nil t) (window-min-size nil t t)))
(let ((window-min-width 2)
(window-safe-min-width 2)
(ignore-window-parameters t)
(current-size (window-size nil t)))
(when company-box-debug-scrollbar
(message "[CHANGES] MIN CURRENT-SIZE=%s WIN-MIN-SIZE=%s WIN-PARAMS=%s FRAME-PARAMS=%s HOOKS=%s"
current-size (window-min-size nil t) (window-parameters) (frame-parameters (company-box--get-frame))
window-configuration-change-hook))
(unless (= current-size 2)
(minimize-window))))
(defun company-box--update-scrollbar-buffer (height-blank height-scrollbar percent buffer)
(with-current-buffer buffer
(erase-buffer)
(setq header-line-format nil
mode-line-format nil
show-trailing-whitespace nil
cursor-in-non-selected-windows nil)
(setq-local window-min-width 2)
(setq-local window-safe-min-width 2)
(unless (zerop height-blank)
(insert (propertize " " 'display `(space :align-to right-fringe :height ,height-blank))
(propertize "\n" 'face (list :height 1))))
(setq height-scrollbar (if (= percent 1)
;; Due to float/int casting in the emacs code, there might 1 or 2
;; remainings pixels
(+ height-scrollbar 10)
height-scrollbar))
(insert (propertize " " 'face (list :background (face-background 'company-box-scrollbar nil t))
'display `(space :align-to right-fringe :height ,height-scrollbar)))
(add-hook 'window-configuration-change-hook 'company-box--scrollbar-prevent-changes t t)
(current-buffer)))
(defun company-box--update-scrollbar (frame &optional first)
(when (eq company-box-scrollbar t)
(let* ((selection (or company-selection 0))
(buffer (company-box--get-buffer "-scrollbar"))
(h-frame company-box--height)
(n-elements company-candidates-length)
(percent (company-box--percent selection (1- n-elements)))
(percent-display (company-box--percent h-frame (* n-elements (frame-char-height frame))))
(scrollbar-pixels (* h-frame percent-display))
(height-scrollbar (/ scrollbar-pixels (frame-char-height frame)))
(blank-pixels (* (- h-frame scrollbar-pixels) percent))
(height-blank (/ blank-pixels (frame-char-height frame)))
(inhibit-redisplay t)
(inhibit-eval-during-redisplay t)
(window-configuration-change-hook nil)
(window-scroll-functions nil))
(when company-box-debug-scrollbar
(message "[SCROLL] SELECTION=%s BUFFER=%s H-FRAME=%s N-ELEMENTS=%s PERCENT=%s PERCENT-DISPLAY=%s SCROLLBAR-PIXEL=%s HEIGHT=SCROLLBAR=%s BLANK-PIXELS=%s HEIGHT-BLANK=%s FRAME-CHAR-HEIGHT=%s FRAME-CHAR-HEIGHT-NO-FRAME=%s FRAME=%s MUL=%s"
selection buffer h-frame n-elements percent percent-display scrollbar-pixels height-scrollbar blank-pixels height-blank (frame-char-height frame) (frame-char-height) frame (* n-elements (frame-char-height frame))))
(cond
((and first (= percent-display 1) (window-live-p company-box--scrollbar-window))
(delete-window company-box--scrollbar-window))
((window-live-p company-box--scrollbar-window)
(company-box--update-scrollbar-buffer height-blank height-scrollbar percent buffer))
((/= percent-display 1)
(setq
company-box--scrollbar-window
(with-selected-frame (company-box--get-frame)
(let* ((window-min-width 2)
(window-safe-min-width 2)
(window-configuration-change-hook nil)
(display-buffer-alist nil)
(window-scroll-functions nil))
(display-buffer-in-side-window
(company-box--update-scrollbar-buffer height-blank height-scrollbar percent buffer)
'((side . right) (window-width . 2))))))
(frame-local-setq company-box-scrollbar (window-buffer company-box--scrollbar-window) frame))))))
;; ;; (message "selection: %s len: %s PERCENT: %s PERCENTS-DISPLAY: %s SIZE-FRAME: %s HEIGHT-S: %s HEIGHT-B: %s h-frame: %s sum: %s"
;; ;; selection n-elements percent percent-display height height-scrollbar height-blank height (+ height-scrollbar height-blank))
;; ;; (message "HEIGHT-S-1: %s HEIGHT-B-1: %s sum: %s" scrollbar-pixels blank-pixels (+ height-scrollbar-1 height-blank-1))
(defun company-box--point-at-line (&optional line start)
(save-excursion
(goto-char (or start 1))
(forward-line (or line company-selection 0))
(point)))
(defun company-box--move-selection (&optional first-render)
(let ((selection company-selection)
(candidates-length company-candidates-length)
(inhibit-redisplay t)
(inhibit-modification-hooks t)
(buffer-list-update-hook nil)
(window-configuration-change-hook nil))
(with-selected-window (get-buffer-window (company-box--get-buffer) t)
(setq company-selection selection)
(let ((new-point (company-box--point-at-line selection))
(buffer-list-update-hook nil)
(window-configuration-change-hook nil))
(cond ((and (> new-point 1) (null (get-text-property (1- new-point) 'company-box--rendered)))
;; When going backward, render lines not yet visible
;; This avoid to render the lines when it's already visible
;; causing window-start to jump
(company-box--render-lines (1- new-point))
(company-box--move-overlays selection))
((get-text-property new-point 'company-box--rendered)
;; Line is already rendered, just move overlays
(company-box--move-overlays selection new-point))
(t
;; Line is not rendered at point
(company-box--render-lines new-point)
(company-box--move-overlays selection))))
(when (equal selection (1- candidates-length))
;; Ensure window doesn't go past last candidate
(--> (- company-box--chunk-size)
(company-box--point-at-line it (point-max))
(set-window-start nil it))))
(unless first-render
(company-box--update-scrollbar (company-box--get-frame) first-render))
(run-with-idle-timer 0 nil (lambda nil (run-hook-with-args 'company-box-selection-hook selection
(or (frame-parent) (selected-frame)))))))
(defun company-box--prevent-changes (&rest _)
(set-window-margins
nil
(if (eq company-show-quick-access 'left) 1 0)
(if (eq company-show-quick-access 't) 2 0)))
(defun company-box--handle-window-changes (&optional on-idle)
(-when-let* ((frame (company-box--get-frame)))