* .emacs.d/init.el: Show system volumes in mode-line.

[~bandali/configs] / .emacs.d / init.el

diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index 310dfde..94f1ccb 100644 (file)
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -193,7 +193,7 @@
 (with-eval-after-load 'time
   (setq
    display-time-default-load-average nil
-   display-time-format " %a %b %-e %-l:%M%P"
+   display-time-format " %a %Y-%m-%d %-l:%M%P"
    display-time-mail-icon '(image :type xpm
                                   :file "gnus/gnus-pointer.xpm"
                                   :ascent center)
@@ -207,16 +207,83 @@
 
 (run-with-idle-timer 0.1 nil #'require 'battery)
 (with-eval-after-load 'battery
-  (setq battery-mode-line-format " %p%% %t")
+  (setq battery-mode-line-format " [%p%% %t]")
   (display-battery-mode))
 
+(progn ; display system volume in mode-line
+  (defun b/get-volume-level (&optional mic)
+    "Returns the current system sound volume.
+If MIC is non-nil, it returns the microphone volume instead."
+    (string-to-number
+     (string-trim
+      (shell-command-to-string
+       (mapconcat
+        #'identity
+        `("pamixer" ,(when mic "--default-source") "--get-volume")
+        " ")))))
+
+  (defun b/set-volume-level (level &optional mic)
+    "Set the system sound volume to LEVEL.
+If MIC is non-nil, set the volume level for the microphone
+instead."
+    (let ((v (if mic 'b/volume-level-mic 'b/volume-level)))
+      (eval `(setq ,v ,level))))
+
+  (defun b/get-volume-mute (&optional mic)
+    "Returns t if system sound is currently muted.
+If MIC is non-nil, it instead returns t if the microphone is
+muted."
+    (string=
+     "true"
+     (string-trim
+      (shell-command-to-string
+       (mapconcat
+        #'identity
+        `("pamixer" ,(when mic "--default-source") "--get-mute")
+        " ")))))
+
+  (defun b/set-volume-mute (mute &optional mic)
+    "Set the system sound mutedness to MUTE.
+If MIC is non-nil, set the mutedness for the microphone instead."
+    (let ((v (if mic 'b/volume-mute-mic 'b/volume-mute)))
+      (eval `(setq ,v ,mute))))
+
+  (defvar b/volume-level (b/get-volume-level))
+  (defvar b/volume-mute (b/get-volume-mute))
+  (defvar b/volume-level-mic (b/get-volume-level 'mic))
+  (defvar b/volume-mute-mic (b/get-volume-mute 'mic))
+
+  (setq-default
+   mode-line-format
+   (append
+    mode-line-format
+    '((:eval
+       (format
+        " [%s%%%%%s %s%%%%%s]"
+        (number-to-string b/volume-level)
+        (if b/volume-mute "-" "+")
+        (number-to-string b/volume-level-mic)
+        (if b/volume-mute-mic "-" "+")))))))
+
 ;; (with-eval-after-load 'fringe
 ;;   ;; smaller fringe
 ;;   (fringe-mode '(3 . 1)))
 
 (run-with-idle-timer 0.5 nil #'require 'winner)
 (with-eval-after-load 'winner
-  (winner-mode 1))
+  (winner-mode 1)
+  (when (featurep 'exwm)
+    ;; prevent a bad interaction between EXWM and winner-mode, where
+    ;; sometimes closing a window (like closing a terminal after
+    ;; entering a GPG password via pinentry-gnome3's floating window)
+    ;; results in a dead frame somewhere and effectively freezes EXWM.
+    (advice-add
+     'winner-insert-if-new
+     :around
+     (lambda (orig-fun &rest args)
+       ;; only add the frame if it's live
+       (when (frame-live-p (car args))
+         (apply orig-fun args))))))
 
 (run-with-idle-timer 0.5 nil #'require 'windmove)
 (with-eval-after-load 'windmove
@@ -272,8 +339,7 @@
 
 (with-eval-after-load 'ediff
   (setq ediff-window-setup-function 'ediff-setup-windows-plain
-        ediff-split-window-function 'split-window-horizontally)
-  (add-hook 'ediff-after-quit-hook-internal #'winner-undo))
+        ediff-split-window-function 'split-window-horizontally))
 
 (with-eval-after-load 'face-remap
   (setq