ui/nav-flash: refactor

+ Avoid generating unneeded markers (relatively expensive in the long
  run).
+ Extract excluded major modes into a variable.

modules/ui/nav-flash/autoload.el

@@ -19,12 +19,13 @@ jumping to another part of the file)."
 vterm-mode, or triggered from one of `+nav-flash-exclude-commands'."
   (unless (or (memq this-command +nav-flash-exclude-commands)
               (bound-and-true-p so-long-minor-mode)
-              (derived-mode-p 'so-long-mode 'special-mode 'term-mode
+              (apply #'derived-mode-p +nav-flash-exclude-modes)
-                              'vterm-mode)
+              (equal +nav-flash--last-point
-              (and (equal (point-marker) (car +nav-flash--last-point))
+                     (list (selected-window)
-                   (equal (selected-window) (cdr +nav-flash--last-point))))
+                           (current-buffer)
+                           (point))))
     (+nav-flash-blink-cursor)
-    (setq +nav-flash--last-point (cons (point-marker) (selected-window)))))
+    (setq +nav-flash--last-point (list (selected-window) (current-buffer) (point)))))
 
 ;;;###autoload
 (defun +nav-flash-delayed-blink-cursor-h (&rest _)

modules/ui/nav-flash/config.el

@@ -5,6 +5,10 @@
     org-find-file org-find-file-at-mouse)
   "A list of commands that should not trigger nav-flash.")
 
+(defvar +nav-flash-exclude-modes
+  '(so-long-mode special-mode comint-mode term-mode vterm-mode)
+  "List of major modes where nav-flash won't automatically trigger.")
+
 
 ;;
 ;;; Packages