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49 lines
1.5 KiB
EmacsLisp
49 lines
1.5 KiB
EmacsLisp
;;; system-clock.el --- This is my system interrupt -*- lexical-binding: t -*-
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;; Copyright (C) 2020 Benson Chu
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;; Author: Benson Chu <bensonchu457@gmail.com>
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;; Created: [2020-01-17 13:53]
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;; This file is not part of GNU Emacs
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(defvar current-system-clock nil)
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(defvar system-clock-time 30)
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(define-minor-mode system-clock-mode
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nil nil nil
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:global t
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(cond (system-clock-mode
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(setq current-system-clock (run-at-time nil system-clock-time (lambda () (interactive) (let ((visible-bell t)) (ding))))))
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(t
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(cancel-timer current-system-clock))))
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(defun activate-system-clock (seconds)
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(interactive "p")
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(when system-clock-mode
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(system-clock-mode nil))
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(setq system-clock-time seconds)
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(system-clock-mode))
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(define-key *root-map* (kbd "S") #'activate-system-clock)
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(provide 'system-clock)
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;;; system-clock.el ends here
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