emacs: Overhaul configuration completely

1 files changed, 115 insertions, 0 deletions

diff --git a/.config/emacs/modules/mm-modeline.el b/.config/emacs/modules/mm-modeline.el
new file mode 100644
index 0000000..cd9af3e
--- /dev/null
+++ b/.config/emacs/modules/mm-modeline.el
@@ -0,0 +1,115 @@
+;;; mm-modeline.el --- Pluggable modeline components  -*- lexical-binding: t; -*-
+
+(defmacro mm-modeline--define-component (name &rest forms)
+  (declare (indent 1))
+  `(progn
+     (defvar-local ,name '(:eval (or ,(macroexp-progn forms) "")))
+     (put ',name 'risky-local-variable t)))
+
+
+;;; Faces
+
+(defface mm-modeline-narrow-face
+  '((t :foreground "#C5C8C6"		; From ‘mango-theme’
+       :background "dark red"
+       :box "dark red"
+       :weight bold))
+  "Face for the `mm-modeline-narrow' modeline component.")
+
+
+;;; Support Icons
+
+(use-package all-the-icons
+  :ensure t
+  :init
+  (defvar mm-all-the-icons-cookie
+    (expand-file-name ".all-the-icons-installed-p" mm-cache-directory))
+  (unless (file-exists-p mm-all-the-icons-cookie)
+    (all-the-icons-install-fonts)
+    (make-empty-file mm-all-the-icons-cookie :parents))
+  (set-char-table-range char-width-table #xE907 2))
+
+
+;;; Modeline Components
+
+(mm-modeline--define-component mm-modeline-readonly
+  (when buffer-read-only
+    (propertize " READONLY" 'face 'bold)))
+
+(mm-modeline--define-component mm-modeline-buffer-name
+  (propertize "%b" 'face 'font-lock-constant-face))
+
+(mm-modeline--define-component mm-modeline-buffer-modified
+  (when (and (buffer-modified-p)
+	     (buffer-file-name))
+    (propertize " (modified)" 'face 'shadow)))
+
+(mm-modeline--define-component mm-modeline-major-mode-name
+  (propertize
+   (thread-last
+     major-mode
+     (symbol-name)
+     (capitalize)
+     (string-replace "-" " ")
+     (string-replace "Ts Mode" "Tree-Sitter Mode")
+     ;; Casing doesn’t work for abbreviations, so fix it manually
+     (replace-regexp-in-string "\\<\\(M\\)?html\\>" "\\1HTML")
+     (replace-regexp-in-string "\\<\\(S\\)?css\\>" "\\1CSS")
+     (replace-regexp-in-string "\\<toml\\>" "TOML")
+     (replace-regexp-in-string "\\<gsp\\>" "GSP"))
+   'face 'bold))
+
+(mm-modeline--define-component mm-modeline-major-mode-symbol
+  (propertize
+   (cond
+    ((derived-mode-p 'prog-mode)             "λ ")
+    ((derived-mode-p '(text-mode conf-mode)) "§ ")
+    ((derived-mode-p 'comint-mode)           ">_ ")
+    (t ""))
+   'face 'shadow))
+
+(mm-modeline--define-component mm-modeline-narrow
+  (when (buffer-narrowed-p)
+    (propertize
+     " Narrow "
+     'face 'mm-modeline-narrow-face)))
+
+(mm-modeline--define-component mm-modeline-git-branch
+  (when-let ((branch (car (and (featurep 'vc-git)
+                               (vc-git-branches)))))
+    (concat
+     (propertize "\uE907" 'display '(raise 0))
+     " "
+     (propertize branch 'face 'font-lock-constant-face)
+     " │ ")))
+
+
+;;; Padding Between Left and Right
+
+(mm-modeline--define-component mm-modeline-left-right-padding
+  (let ((length (string-width (format-mode-line mm-modeline-right))))
+    (propertize " " 'display `(space :align-to (- right ,length)))))
+
+
+;;; Configure Modeline
+
+(setopt mode-line-format-right-align 'right-margin)
+
+(setq
+ mm-modeline-left (list mm-modeline-narrow
+                        mm-modeline-readonly
+                        " "
+                        mm-modeline-buffer-name
+                        mm-modeline-buffer-modified
+                        " │ "
+                        mm-modeline-major-mode-symbol
+                        mm-modeline-major-mode-name
+                        mm-modeline-left-right-padding
+                        mode-line-end-spaces)
+ mm-modeline-right (list mm-modeline-git-branch
+                         "%l:%c "))
+
+(setq-default
+ mode-line-format
+ (list mm-modeline-left mm-modeline-left-right-padding mm-modeline-right))
+(provide 'mm-modeline)