doomemacs/modules/ui/doom-modeline/+new.el

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;;; ui/doom-modeline/config.el -*- lexical-binding: t; -*-
;;;###if (featurep! +new)
;; This mode-line is experimental, may have bugs and is likely to change. It
;; also doesn't have all the features of the old modeline (yet).
;;
;; However, it is at least twice as fast as the original modeline, and a little
;; more flexible, what with `mode-line-format-left' and
;; `mode-line-format-right'. It also exposes a more powerful API for defining
;; modelines and modeline segments that make use of variable watchers and hooks
;; to update them.
;;;; Benchmarks
;; (benchmark-run 1000 (format-mode-line mode-line-format))
;; Old system: ~0.198
;; New system: ~0.056
(defvar +doom-modeline-height 25
"How tall the mode-line should be (only respected in GUI emacs).")
(defvar +doom-modeline-buffer-name-function
#'doom-modeline--file-path
"TODO")
(defvar anzu--state nil)
(defvar evil-mode nil)
(defvar evil-state nil)
(defvar evil-visual-selection nil)
(defvar iedit-mode nil)
(defvar all-the-icons-scale-factor)
(defvar all-the-icons-default-adjust)
(defvar-local mode-line-format-left ())
(defvar-local mode-line-format-right ())
(put 'mode-line-format-left 'risky-local-variable t)
(put 'mode-line-format-right 'risky-local-variable t)
;;
;; Plugins
;;
(def-package! anzu
:after-call isearch-mode
:config
(setq anzu-cons-mode-line-p nil
anzu-minimum-input-length 1
anzu-search-threshold 250)
(global-anzu-mode +1)
(defun +doom-modeline*fix-anzu-count (positions here)
(cl-loop for (start . end) in positions
collect t into before
when (and (>= here start) (<= here end))
return (length before)
finally return 0))
(advice-add #'anzu--where-is-here :override #'+doom-modeline*fix-anzu-count)
;; Avoid anzu conflicts across buffers
(mapc #'make-variable-buffer-local
'(anzu--total-matched anzu--current-position anzu--state
anzu--cached-count anzu--cached-positions anzu--last-command
anzu--last-isearch-string anzu--overflow-p))
;; Ensure anzu state is cleared when searches & iedit are done
(add-hook 'isearch-mode-end-hook #'anzu--reset-status t)
(add-hook 'doom-escape-hook #'anzu--reset-status t)
(add-hook 'iedit-mode-end-hook #'anzu--reset-status))
(def-package! evil-anzu
:when (featurep! :feature evil)
:after-call (evil-ex-start-search evil-ex-start-word-search))
;;
;; Helpers
;;
;; Keep `+doom-modeline-current-window' up-to-date
(defvar +doom-modeline-current-window (frame-selected-window))
(defun +doom-modeline|set-selected-window (&rest _)
"Sets `+doom-modeline-current-window' appropriately"
(when-let* ((win (frame-selected-window)))
(unless (minibuffer-window-active-p win)
(setq +doom-modeline-current-window win)
(force-mode-line-update))))
(defun +doom-modeline|unset-selected-window ()
(setq +doom-modeline-current-window nil)
(force-mode-line-update))
(add-hook 'window-configuration-change-hook #'+doom-modeline|set-selected-window)
(add-hook 'doom-enter-window-hook #'+doom-modeline|set-selected-window)
(if (not (boundp 'after-focus-change-function))
(progn
(add-hook 'focus-in-hook #'+doom-modeline|set-selected-window)
(add-hook 'focus-out-hook #'+doom-modeline|unset-selected-window))
(defun +doom-modeline|refresh-frame ()
(setq +doom-modeline-current-window nil)
(cl-loop for frame in (frame-list)
if (eq (frame-focus-state frame) t)
return (setq +doom-modeline-current-window (frame-selected-window frame)))
(force-mode-line-update t))
(add-function :after after-focus-change-function #'+doom-modeline|refresh-frame))
(defsubst active ()
(eq (selected-window) +doom-modeline-current-window))
;; xpm generator
(defun doom-modeline--make-xpm (width height &optional color)
"Create an XPM bitmap. Inspired by `powerline''s `pl/make-xpm'."
(propertize
" " 'display
(let ((data (make-list height (make-list width 1)))
(color (or color "None")))
(ignore-errors
(create-image
(concat
(format "/* XPM */\nstatic char * percent[] = {\n\"%i %i 2 1\",\n\". c %s\",\n\" c %s\","
(length (car data))
(length data)
color
color)
(apply #'concat
(cl-loop with idx = 0
with len = (length data)
for dl in data
do (cl-incf idx)
collect
(concat "\""
(cl-loop for d in dl
if (= d 0) collect (string-to-char " ")
else collect (string-to-char "."))
(if (eq idx len) "\"};" "\",\n")))))
'xpm t :ascent 'center)))))
(defun doom-modeline--file-path (&optional path)
(let ((buffer-file-name (or path buffer-file-name))
(root (doom-project-root))
(active (active)))
(cond ((null root)
(propertize "%b" 'face (if active 'doom-modeline-buffer-file)))
((or (null buffer-file-name)
(directory-name-p buffer-file-name))
(propertize (abbreviate-file-name (or buffer-file-name default-directory))
'face (if active 'doom-modeline-buffer-path)))
((let* ((modified-faces (if (buffer-modified-p) 'doom-modeline-buffer-modified))
(true-filename (file-truename buffer-file-name))
(relative-dirs (file-relative-name (file-name-directory true-filename)
(concat root "../")))
(relative-faces (or modified-faces (if active 'doom-modeline-buffer-path)))
(file-faces (or modified-faces (if active 'doom-modeline-buffer-file))))
(if (equal "./" relative-dirs) (setq relative-dirs ""))
(concat (propertize relative-dirs 'face (if relative-faces `(:inherit ,relative-faces)))
(propertize (file-name-nondirectory true-filename)
'face (if file-faces `(:inherit ,file-faces)))))))))
;;
;; Macros
;;
(cl-defmacro def-modeline-segment! (name &rest rest &key init faces hooks vars &allow-other-keys)
"TODO"
(let ((body rest))
(while (keywordp (car body))
(setq body (cddr body)))
(setq rest body))
(unless EMACS26+
(setq vars nil))
(let ((docstring (if (stringp (car rest)) (pop rest)))
(realvar (if (and rest faces) (intern (format "doom-modeline--var-%s" name)) name)))
(macroexp-progn
(append (when rest
(if (or hooks vars)
(let ((setterfn (intern (format "doom-modeline--set-%s" name)))
(varsetterfn (intern (format "doom-modeline--setvar-%s" name))))
(append `((fset ',setterfn
(lambda (&rest _)
(when (or (memq ',name mode-line-format-left)
(memq ',name mode-line-format-right))
(setq-local ,realvar (progn ,@rest))))))
(mapcar (lambda (hook) `(add-hook ',hook #',setterfn))
hooks)
(when vars
`((fset ',varsetterfn
(lambda (sym val op where)
(and (eq op 'set) where
(with-current-buffer where
(set sym val)
(,setterfn)))))
,@(mapcar (lambda (var) `(add-variable-watcher ',var #',varsetterfn))
vars)))))
(setq init `(quote (:eval ,@rest)))
nil))
(if (eq realvar name)
`((defvar-local ,name ,init ,docstring))
`((defvar-local ,realvar nil)
(defvar-local ,name
'(:eval (cond ((active) ,realvar) (,realvar (substring-no-properties ,realvar))))
,docstring)))
`((put ',name 'risky-local-variable t))))))
;;
(defvar doom-mode-line-alist nil)
(defun def-modeline! (name left &optional right)
(setf (alist-get name doom-mode-line-alist) (list left right)))
(defun set-modeline! (name &optional default)
(let ((modeline (cdr (assq name doom-mode-line-alist))))
(if default
(setq-default mode-line-format-left `("" ,@(car modeline))
mode-line-format-right `("" ,@(cadr modeline)))
(setq mode-line-format-left `("" ,@(car modeline))
mode-line-format-right `("" ,@(cadr modeline))))
(force-mode-line-update)))
;;
;; Bars
;;
(defvar mode-line-bar-active nil "TODO")
(defvar mode-line-bar-inactive nil "TODO")
(defun doom-modeline|setup-bars ()
(setq mode-line-bar-active
(doom-modeline--make-xpm 3 +doom-modeline-height (face-background 'doom-modeline-bar))
mode-line-bar-inactive
(doom-modeline--make-xpm 3 +doom-modeline-height)))
(add-hook 'doom-load-modeline-hook #'doom-modeline|setup-bars)
(defun doom-modeline|setup-bars-after-change (_sym val op _where)
(when (eq op 'set)
(let ((+doom-modeline-height val))
(doom-modeline|setup-bars))))
(add-variable-watcher '+doom-modeline-height #'doom-modeline|setup-bars-after-change)
(def-modeline-segment! +mode-line-bar
(if (active) mode-line-bar-active mode-line-bar-inactive))
;;
;; Segments
;;
(defun +doom-modeline|update-on-change ()
(doom-modeline--set-+mode-line-buffer-id)
(remove-hook 'post-command-hook #'+doom-modeline|update-on-change t))
(defun +doom-modeline|start-update-on-change ()
(add-hook 'post-command-hook #'+doom-modeline|update-on-change nil t))
(add-hook 'first-change-hook #'+doom-modeline|start-update-on-change)
(advice-add #'undo :after #'doom-modeline--set-+mode-line-buffer-id)
(advice-add #'undo-tree-undo :after #'doom-modeline--set-+mode-line-buffer-id)
(def-modeline-segment! +mode-line-buffer-id
:hooks (find-file-hook after-change-functions read-only-mode-hook after-save-hook after-revert-hook)
:faces t
(concat (cond (buffer-read-only
(concat (all-the-icons-octicon
"lock"
:face 'doom-modeline-warning
:v-adjust -0.05)
" "))
((buffer-modified-p)
(concat (all-the-icons-faicon
"floppy-o"
:face 'doom-modeline-buffer-modified
:v-adjust -0.0575)
" "))
((and buffer-file-name (not (file-exists-p buffer-file-name)))
(concat (all-the-icons-octicon
"circle-slash"
:face 'doom-modeline-urgent
:v-adjust -0.05)
" ")))
(if buffer-file-name
(funcall +doom-modeline-buffer-name-function buffer-file-name)
"%b")))
(def-modeline-segment! +mode-line-buffer-directory
(let ((face (if (active) 'doom-modeline-buffer-path)))
(concat (if (display-graphic-p) " ")
(all-the-icons-octicon
"file-directory"
:face face
:v-adjust -0.05
:height 1.25)
(propertize (concat " " (abbreviate-file-name default-directory))
'face face))))
(def-modeline-segment! +mode-line-vcs
:vars (vc-mode)
(when (and vc-mode buffer-file-name)
(let* ((backend (vc-backend buffer-file-name))
(state (vc-state buffer-file-name backend)))
(let ((face 'mode-line-inactive)
(active (active))
(all-the-icons-default-adjust -0.1))
(concat " "
(cond ((memq state '(edited added))
(if active (setq face 'doom-modeline-info))
(all-the-icons-octicon
"git-compare"
:face face
:v-adjust -0.05))
((eq state 'needs-merge)
(if active (setq face 'doom-modeline-info))
(all-the-icons-octicon "git-merge" :face face))
((eq state 'needs-update)
(if active (setq face 'doom-modeline-warning))
(all-the-icons-octicon "arrow-down" :face face))
((memq state '(removed conflict unregistered))
(if active (setq face 'doom-modeline-urgent))
(all-the-icons-octicon "alert" :face face))
(t
(if active (setq face 'font-lock-doc-face))
(all-the-icons-octicon
"git-compare"
:face face
:v-adjust -0.05)))
" "
(propertize (substring vc-mode (+ (if (eq backend 'Hg) 2 3) 2))
'face (if active face))
" ")))))
(def-modeline-segment! +mode-line-encoding
:hooks (after-save-hook find-file-hook)
:vars (buffer-file-coding-system)
(concat (pcase (coding-system-eol-type buffer-file-coding-system)
(0 "LF ")
(1 "CRLF ")
(2 "CR "))
(let ((sys (coding-system-plist buffer-file-coding-system)))
(if (memq (plist-get sys :category) '(coding-category-undecided coding-category-utf-8))
"UTF-8"
(upcase (symbol-name (plist-get sys :name)))))
" "))
(def-modeline-segment! +mode-line-major-mode
:vars (mode-name)
:faces t
(propertize (format-mode-line mode-name) 'face 'font-lock-keyword-face))
(defun +doom-modeline--macro-recording ()
"Display current Emacs or evil macro being recorded."
(when (and (active) (or defining-kbd-macro executing-kbd-macro))
(let ((sep (propertize " " 'face 'doom-modeline-panel)))
(concat sep
(propertize (if (bound-and-true-p evil-this-macro)
(char-to-string evil-this-macro)
"Macro")
'face 'doom-modeline-panel)
sep
(all-the-icons-octicon "triangle-right"
:face 'doom-modeline-panel
:v-adjust -0.05)
sep))))
(defsubst +doom-modeline--anzu ()
"Show the match index and total number thereof. Requires `anzu', also
`evil-anzu' if using `evil-mode' for compatibility with `evil-search'."
(when (and anzu--state (not iedit-mode))
(propertize
(let ((here anzu--current-position)
(total anzu--total-matched))
(cond ((eq anzu--state 'replace-query)
(format " %d replace " total))
((eq anzu--state 'replace)
(format " %d/%d " here total))
(anzu--overflow-p
(format " %s+ " total))
(t
(format " %s/%d " here total))))
'face (if (active) 'doom-modeline-panel))))
(defsubst +doom-modeline--evil-substitute ()
"Show number of matches for evil-ex substitutions and highlights in real time."
(when (and evil-mode
(or (assq 'evil-ex-substitute evil-ex-active-highlights-alist)
(assq 'evil-ex-global-match evil-ex-active-highlights-alist)
(assq 'evil-ex-buffer-match evil-ex-active-highlights-alist)))
(propertize
(let ((range (if evil-ex-range
(cons (car evil-ex-range) (cadr evil-ex-range))
(cons (line-beginning-position) (line-end-position))))
(pattern (car-safe (evil-delimited-arguments evil-ex-argument 2))))
(if pattern
(format " %s matches " (how-many pattern (car range) (cdr range)))
" - "))
'face (if (active) 'doom-modeline-panel))))
(defun doom-themes--overlay-sort (a b)
(< (overlay-start a) (overlay-start b)))
(defsubst +doom-modeline--iedit ()
"Show the number of iedit regions matches + what match you're on."
(when (and iedit-mode iedit-occurrences-overlays)
(propertize
(let ((this-oc (or (let ((inhibit-message t))
(iedit-find-current-occurrence-overlay))
(progn (iedit-prev-occurrence)
(iedit-find-current-occurrence-overlay))))
(length (length iedit-occurrences-overlays)))
(format " %s/%d "
(if this-oc
(- length
(length (memq this-oc (sort (append iedit-occurrences-overlays nil)
#'doom-themes--overlay-sort)))
-1)
"-")
length))
'face (if (active) 'doom-modeline-panel))))
(def-modeline-segment! +mode-line-matches
"Displays: 1. the currently recording macro, 2. A current/total for the
current search term (with anzu), 3. The number of substitutions being conducted
with `evil-ex-substitute', and/or 4. The number of active `iedit' regions."
(let ((meta (concat (+doom-modeline--macro-recording)
(+doom-modeline--anzu)
(+doom-modeline--evil-substitute)
(+doom-modeline--iedit)
" ")))
(or (and (not (equal meta " ")) meta)
(if buffer-file-name " %I "))))
(def-modeline! :main
'(+mode-line-bar +mode-line-matches " " +mode-line-buffer-id " %2l:%c %p ")
'(+mode-line-encoding +mode-line-major-mode +mode-line-vcs))
(def-modeline! :project
'(+mode-line-bar +mode-line-buffer-directory)
'(+mode-line-major-mode))
;;
;;
;;
(def-modeline-segment! mode-line-rest
(let ((rhs-str (format-mode-line mode-line-format-right)))
(list (propertize
" " 'display
`((space :align-to (- (+ right right-fringe right-margin)
,(1+ (string-width rhs-str))))))
rhs-str)))
(setq-default mode-line-format '("" mode-line-format-left mode-line-rest))
;;
(set-modeline! :main t)
(add-hook! '+doom-dashboard-mode-hook (set-modeline! :project))
;;
(defun doom-modeline-init () (run-hooks 'doom-load-modeline-hook))
(add-hook 'doom-load-theme-hook #'doom-modeline-init)
;; Ensure modeline is inactive when Emacs is unfocused (and active otherwise)
(defvar +doom-modeline-remap-face-cookie nil)
(defun +doom-modeline|focus ()
(when +doom-modeline-remap-face-cookie
(require 'face-remap)
(face-remap-remove-relative +doom-modeline-remap-face-cookie)))
(defun +doom-modeline|unfocus ()
(setq +doom-modeline-remap-face-cookie (face-remap-add-relative 'mode-line 'mode-line-inactive)))
(add-hook 'focus-in-hook #'+doom-modeline|focus)
(add-hook 'focus-out-hook #'+doom-modeline|unfocus)