Fix mode-line flashing

Thanks, doom-themes!

1 files changed, 28 insertions, 0 deletions

@@ -0,0 +1,28 @@
+;;; acdw-bell.el --- flash mode-line on error -*- lexical-binding: t; -*-
+
+;; cribbed pretty heavily from doom-themes-ext-visual-bell.el ...
+
+(require 'face-remap)
+
+(defface acdw-bell '((t (:inherit mode-line-highlight)))
+  "Face to use for the mode-line when `doom-themes-visual-bell-config' is used."
+  :group 'mode-line)
+
+;;;###autoload
+(defun acdw-bell/flash-mode-line (&optional beep-p)
+  "Blink the mode-line red briefly. Set `ring-bell-function' to this to use it.
+If BEEP-P is non-nil, beep too."
+  (let ((acdw-bell//cookie
+         (face-remap-add-relative 'mode-line 'acdw-bell)))
+    (force-mode-line-update)
+    (when beep-p (beep))
+    (run-with-timer 0.15 nil
+                    (lambda (cookie buf)
+                      (with-current-buffer buf
+                        (face-remap-remove-relative cookie)
+                        (force-mode-line-update)))
+                    acdw-bell//cookie
+                    (current-buffer))))
+
+(provide 'acdw-bell)
+;;; acdw-bell.el ends here