fix: close minibuffer if open when pressing C-g

config.org

@@ -1161,3 +1161,37 @@ This should normally be done by the init.el to load this configuration.
 | M-x untabify/tabify   | Convert to spaces/tabs                                    |
 | M-x describe-bindings | List all mapped keys/commands                             |
 | M-q                   | Fill paragraph                                            |
+
+** Minibuffer
+
+*** Close minibuffer when pressing C-g
+
+'Inspired' by https://protesilaos.com/codelog/2024-11-28-basic-emacs-configuration/#h:1e4fde73-a2a2-4dc5-82ad-02cf3884ece6 .
+#+BEGIN_SRC emacs-lisp
+(defun myrmi/keyboard-quit-dwim ()
+  "Do-What-I-Mean behaviour for a general `keyboard-quit'.
+
+The generic `keyboard-quit' does not do the expected thing when
+the minibuffer is open.  Whereas we want it to close the
+minibuffer, even without explicitly focusing it.
+
+The DWIM behaviour of this command is as follows:
+
+- When the region is active, disable it.
+- When a minibuffer is open, but not focused, close the minibuffer.
+- When the Completions buffer is selected, close it.
+- In every other case use the regular `keyboard-quit'."
+  (interactive)
+  (cond
+   ((region-active-p)
+    (keyboard-quit))
+   ((derived-mode-p 'completion-list-mode)
+    (delete-completion-window))
+   ((> (minibuffer-depth) 0)
+    (abort-recursive-edit))
+   (t
+    (keyboard-quit))))
+
+(define-key global-map (kbd "C-g") #'myrmi/keyboard-quit-dwim)
+
+#+END_SRC