Variable: button-mode
button-mode is a buffer-local variable defined in button.el.gz.
Documentation
Non-nil if Button mode is enabled.
Use the command button-mode(var)/button-mode(fun) to change this variable.
Probably introduced at or before Emacs version 28.1.
Key Bindings
Source Code
;; Defined in /usr/src/emacs/lisp/button.el.gz
(define-minor-mode button-mode
"A minor mode for navigating to buttons with the TAB key.
Disabling the mode will remove all buttons in the current buffer."
:keymap button-buffer-map
(when (not button-mode)
(save-excursion
(save-restriction
(widen)
(unbuttonize-region (point-min) (point-max))))))