From a9aeb16b917547dff0b2edaa27be25223cb8437a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ra=C3=BAl=20Benencia?= <id@rbenencia.name>
Date: Sun, 14 Jan 2024 12:15:39 -0800
Subject: emacs: eglot modeline

---
 .emacs.d/rul-lisp/packages/rul-modeline.el | 76 +++++-------------------------
 1 file changed, 12 insertions(+), 64 deletions(-)

(limited to '.emacs.d/rul-lisp')

diff --git a/.emacs.d/rul-lisp/packages/rul-modeline.el b/.emacs.d/rul-lisp/packages/rul-modeline.el
index a05eeb9..ae250c4 100644
--- a/.emacs.d/rul-lisp/packages/rul-modeline.el
+++ b/.emacs.d/rul-lisp/packages/rul-modeline.el
@@ -66,68 +66,16 @@ Truncation is done up to `rul-modeline-string-truncate-length'."
      (propertize "%]" 'face 'rul-modeline-indicator-red))
   "Mode line construct for displaying major modes.")
 
-;(makunbound 'rul-modeline-major-mode)
-
-;;;; Align right
-(defun prot-modeline--right-align-rest ()
-  "Return string if everything after `prot-modeline-align-right'."
-  (format-mode-line
-   `(""
-     ,@(cdr (memq 'prot-modeline-align-right mode-line-format)))))
-
-(defun prot-modeline--right-align-width ()
-  "Return pixel width of `prot-modeline--right-align-rest'."
-  (string-pixel-width (prot-modeline--right-align-rest)))
-
-(defun prot-modeline--box-p ()
-  "Return non-nil if the `mode-line' has a box attribute."
-  (and (face-attribute 'mode-line :box)
-       (null (eq (face-attribute 'mode-line :box) 'unspecified))))
-
-(defun prot-modeline--variable-pitch-p ()
-  "Return non-nil if the `mode-line' inherits `variable-pitch'."
-  (when-let* ((mode-line-inherit (face-attribute 'mode-line :inherit))
-              ((string-match-p "variable-pitch" (symbol-name mode-line-inherit)))
-              (family-face (face-attribute mode-line-inherit :inherit))
-              (variable-pitch
-               (if (listp family-face)
-                   (memq 'variable-pitch family-face)
-                 (eq 'variable-pitch family-face))))
-    variable-pitch))
-
-(defun prot-modeline--magic-number ()
-  "Return constant for use in `prot-modeline-align-right'."
-  (let ((height (face-attribute 'mode-line :height nil 'default))
-        (m-width (string-pixel-width (propertize "m" 'face 'mode-line))))
-    (round height (* m-width (* height m-width 0.001)))))
-
-(defvar-local prot-modeline-align-right
-    '(:eval
-      (propertize
-       " "
-       'display
-       (let ((box-p (prot-modeline--box-p))
-             (variable-pitch-p (prot-modeline--variable-pitch-p))
-             (magic-number (prot-modeline--magic-number)))
-         `(space
-           :align-to
-           (- right
-              right-fringe
-              right-margin
-              ,(ceiling
-                (prot-modeline--right-align-width)
-                (string-pixel-width (propertize "m" 'face 'mode-line)))
-              ,(cond
-                ((and variable-pitch-p box-p)
-                 (* magic-number 0.5))
-                ((and (not variable-pitch-p) box-p)
-                 (* magic-number 0.25))
-                ((and variable-pitch-p (not box-p))
-                 (* magic-number -0.05))
-                (t (* magic-number -0.1))))))))
-  "Mode line construct to align following elements to the right.
-Read Info node `(elisp) Pixel Specification'.")
-
+(with-eval-after-load 'eglot
+  (setq mode-line-misc-info
+        (delete '(eglot--managed-mode (" [" eglot--mode-line-format "] ")) mode-line-misc-info)))
+
+(defvar-local prot-modeline-eglot
+    `(:eval
+      (when (and (featurep 'eglot) (mode-line-window-selected-p))
+        '(eglot--managed-mode eglot--mode-line-format)))
+  "Mode line construct displaying Eglot information.
+Specific to the current window's mode line.")
 
 ;;;; Miscellaneous
 (defvar-local rul-modeline-misc-info
@@ -146,7 +94,6 @@ Specific to the current window's mode line.")
 (dolist (construct '(
                      rul-modeline-major-mode
                      rul-modeline-misc-info
-                     prot-modeline-align-right
                      ))
   (put construct 'risky-local-variable t))
 
@@ -157,7 +104,8 @@ Specific to the current window's mode line.")
                 mode-line-buffer-identification
                 mode-line-front-space
                 rul-modeline-major-mode
-                prot-modeline-align-right
+                prot-modeline-eglot
+                mode-line-format-right-align
                 rul-modeline-misc-info
                 ))
 
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