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;;; modally.el --- An Emacs mode-line -*- lexical-binding: t; -*-
;; Copyright (C) 2024 Blake Romero
;; Author: Blake Romero <codeblake@outlook.com>
;; Keywords: extensions
;; 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 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;; Code:
(require 'subr-x)
(require 'cl-lib)
(require 'vc-git)
(require 'flymake)
(require 'org-timer)
(require 'modally-faces)
;; FUNCTIONS
(defun modally--buffer-name ()
"Return a propertized buffer name string."
(let* ((buffer-face (cond
((buffer-modified-p) 'modally-buffer-modified)
(buffer-read-only 'modally-buffer-readonly)
('modally-buffer)))
(buffer-name (concat (if buffer-read-only "🔒 " "✏️ ")
(if buffer-file-name
(if (string-match "^\\(/home/[^/]+\\)\\(.+\\)"
buffer-file-name)
(concat "~" (match-string 2 buffer-file-name))
buffer-file-name)
(buffer-name (current-buffer)))))
(spath (string-split buffer-name "/")))
;; Format
(if (> (length spath) 1)
;; if buffer has a path
(let ((path (string-join (butlast spath) "/"))
(filename (car (last spath))))
(format "\s%s/%s"
(propertize path 'face 'modally-buffer-path)
(propertize filename 'face buffer-face)))
;; if a buffer
(format "\s%s" (propertize buffer-name 'face buffer-face))
)))
(defun modally--major-mode ()
"Return a propertized major mode string."
(let ((mode (string-remove-suffix "-mode" (symbol-name major-mode))))
(format-mode-line (format "\s%s" (cond
((equal mode "emacs-lisp")
"elisp")
((equal mode "lisp-interaction")
"lisp")
(mode))) 'modally-major-mode)))
(defun modally--line-column ()
"Return a propertized line column position."
(format-mode-line
"\sC%C"
`(,(let ((column (current-column)))
(cond
((and (>= column (- fill-column 10))
(< column fill-column))
'warning)
((>= column fill-column)
'modally-column-error))))))
(defun modally--git-branch ()
"Return a propertized Git branch string."
(when-let* ((buffer (buffer-file-name))
(branch (vc-git--symbolic-ref buffer)))
(format "\s%s |" (propertize branch 'face 'modally-git-branch))))
(defun modally--flymake-diagnostics ()
"Return `flymake-mode' alert counts."
(let ((errors 0) (warnings 0) (notes 0) (alerts))
(dolist (d (flymake-diagnostics))
(pcase (flymake-diagnostic-type d)
(':error (cl-incf errors))
(':warning (cl-incf warnings))
(':note (cl-incf notes))))
(when (or (> errors 0) (> warnings 0) (> notes 0))
(when (> notes 0)
(cl-pushnew
(propertize (format "i%s" notes) 'face 'modus-themes-fg-blue) alerts))
(when (> warnings 0)
(cl-pushnew
(propertize (format "w%s" warnings) 'face 'warning) alerts))
(when (> errors 0)
(cl-pushnew
(propertize (format "e%s" errors) 'face 'error) alerts))
(format "\s%s |" (string-join alerts "\s")))))
(defun modally--approx-time (time)
"Return an approximation of TIME."
(let ((time (replace-regexp-in-string "<\\|>" "" time))
(h (string-to-number
(nth 0 (string-split time ":"))))
(m (string-to-number
(nth 1 (string-split time ":"))))
(s (string-to-number
(nth 2 (string-split time ":")))))
(cond
((and (eq h 0) (eq m 0))
(format "%ds" s))
((and (eq h 0) (> m 0))
(format "~%dm" m))
((and (> h 0) (> m 0))
(format "~%dh:%dm" h m)))))
(defun modally--org-timer ()
"Return a timer from `org-timer'."
(when (or org-timer-mode-line-timer
org-timer-pause-time)
(let ((face (if org-timer-pause-time
'modally-org-timer-pause
'modally-org-timer)))
(format "\s%s |"
(propertize
(modally--approx-time org-timer-mode-line-string)
'face face)))))
;; VARIABLES
(defvar modally-display-buffer-name
'(:eval (modally--buffer-name))
"Modeline construct to display the buffer name.")
(defvar modally-display-major-mode
'(:eval (modally--major-mode))
"Modeline construct to display the major mode.")
(defvar modally-display-git-branch
'(:eval (modally--git-branch))
"Modeline construct to display the Git branch name.")
(defvar modally-display-line-column
'(:eval (modally--line-column))
"Modeline construct to display line & column position.")
(defvar modally-display-line-row
'(:eval (format-mode-line "\sL%l"))
"Modeline construct to display line & column position.")
(defvar modally-display-file-size
'(:eval (format-mode-line "\s%I"))
"Modeline construct to display file size of buffer.")
(defvar modally-display-flymake
'(:eval (modally--flymake-diagnostics))
"Modeline construct to display flymake info.")
(defvar modally-display-org-timer
'(:eval (modally--org-timer))
"Modeline construct to display `org-timer' info.")
;; set as risky local variable
(dolist (construct '(modally-display-buffer-name
modally-display-major-mode
modally-display-git-branch
modally-display-line-row
modally-display-line-column
modally-display-file-size
modally-display-flymake
modally-display-org-timer))
(put construct 'risky-local-variable #'stringp))
;; FORMATS
(defvar modally-format-default
`("%e"
modally-display-buffer-name
mode-line-format-right-align
modally-display-org-timer
modally-display-line-row
modally-display-line-column
" |"
modally-display-git-branch
modally-display-file-size
" |"
modally-display-flymake
modally-display-major-mode
)
"Default modally format for the mode-line.")
;; HELPERS
(defun modally--set-face ()
"Set mode-line face."
(set-face-attribute
'mode-line-active nil
:background "black"
:foreground "white"
:box '(:line-width (20 . 2) :color "#444444"))
(set-face-attribute
'mode-line-inactive nil
:background "black"
:foreground "grey"
:box '(:line-width (20 . 2) :color "#222222")))
(defun modally--reset-face()
"Reset mode-line face."
(set-face-attribute
'mode-line nil
:background "black"
:foreground "white"
:box t))
(defun modally--reset-mode-line ()
"Reset mode-line."
(setq-default mode-line-format (car (get 'mode-line-format 'standard-value)))
(modally--reset-face))
(defun modally--set-mode-line ()
"Set modally mode-line."
(setq-default mode-line-format modally-format-default)
(with-eval-after-load 'keycast
(setq-default keycast-mode-line-insert-after 'modally-display-git-branch))
(modally--set-face))
;; MODE
;;;###autoload
(define-minor-mode modally-mode
"An Emacs mode-line."
:group 'modally
:global t
:require '(subr-x vc-git flymake cl-lib)
:lighter " MDL"
(if modally-mode
(modally--set-mode-line)
(modally--reset-mode-line)))
(provide 'modally)
;;; modally.el ends here
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