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emacs/lisp/type-break.el
1994-02-14 00:41:56 +00:00

66 lines
1.8 KiB
EmacsLisp

(require 'timer)
;;;###autoload
(defvar hanoi-break-interval (* 60 30)
"*Number of seconds between Hanoi breaks.")
(add-hook 'post-command-hook 'hanoi-break-check t)
(defvar hanoi-break-p nil
"Non-nil if we need a Hanoi break real soon now.")
(defun hanoi-break-check ()
"Take a Hanoi break if the time has come."
(and (not (input-pending-p))
(prog1 hanoi-break-p
(setq hanoi-break-p nil))
(hanoi-break)))
;;;###autoload
(defun hanoi-break ()
"Take a Hanoi break, son."
(interactive)
(save-window-excursion
(eval (condition-case error
(if (not (yes-or-no-p "Take a break now? "))
'(hanoi-break-schedule 60) ; Bug him again in one minute.
;; Eat the screen.
(if (eq (selected-window) (minibuffer-window))
(other-window 1))
(delete-other-windows)
(scroll-right (window-width))
;; Send him on his way.
(message "Take a break, son.")
(if (get-buffer "*Hanoi*")
(kill-buffer "*Hanoi*"))
(condition-case ()
(progn
(hanoi (/ (window-width) 8))
;; Wait for him to come back.
(read-char)
(kill-buffer "*Hanoi*"))
(quit nil))
'(hanoi-break-schedule)) ; Schedule next break.
(quit '(hanoi-break-schedule 60)) ; Bug him again in one minute.
;;(error t)
))))
;;;###autoload
(defun hanoi-break-schedule (&optional time)
"Schedule a break for ARG seconds from now (default: hanoi-break-interval)."
(interactive (list (and current-prefix-arg
(prefix-numeric-value current-prefix-arg))))
(or time (setq time hanoi-break-interval))
(run-at-time time nil 'hanoi-break-soon))
(defun hanoi-break-soon ()
"Take a Hanoi break very soon."
(setq hanoi-break-p t))
(defun cancel-hanoi-break ()
"Cancel scheduled Hanoi breaks."
(interactive)
(cancel-function-timers 'hanoi-break-soon))
(provide 'hanoi-break)