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107 lines
3.9 KiB
EmacsLisp
107 lines
3.9 KiB
EmacsLisp
;;; timer-list.el --- list active timers in a buffer
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;; Copyright (C) 2016-2018 Free Software Foundation, Inc.
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;; Maintainer: emacs-devel@gnu.org
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;; Package: emacs
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;; This file is part of GNU Emacs.
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;; GNU Emacs 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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;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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;;;###autoload
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(defun list-timers (&optional _ignore-auto _nonconfirm)
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"List all timers in a buffer."
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(interactive)
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(pop-to-buffer-same-window (get-buffer-create "*timer-list*"))
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(let ((inhibit-read-only t))
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(erase-buffer)
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(timer-list-mode)
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(dolist (timer (append timer-list timer-idle-list))
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(insert (format "%4s %10s %8s %s"
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;; Idle.
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(if (aref timer 7) "*" " ")
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;; Next time.
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(let ((time (float-time (list (aref timer 1)
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(aref timer 2)
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(aref timer 3)))))
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(format "%.2f"
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(if (aref timer 7)
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time
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(- (float-time (list (aref timer 1)
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(aref timer 2)
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(aref timer 3)))
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(float-time)))))
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;; Repeat.
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(let ((repeat (aref timer 4)))
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(cond
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((numberp repeat)
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(format "%.2f" (/ repeat 60)))
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((null repeat)
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"-")
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(t
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(format "%s" repeat))))
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;; Function.
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(let ((cl-print-compiled 'static)
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(cl-print-compiled-button nil))
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(cl-prin1-to-string (aref timer 5)))))
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(put-text-property (line-beginning-position)
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(1+ (line-beginning-position))
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'timer timer)
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(insert "\n")))
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(goto-char (point-min)))
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;; This command can be destructive if they don't know what they are
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;; doing. Kids, don't try this at home!
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;;;###autoload (put 'list-timers 'disabled "Beware: manually canceling timers can ruin your Emacs session.")
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(defvar timer-list-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map "c" 'timer-list-cancel)
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(define-key map "n" 'next-line)
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(define-key map "p" 'previous-line)
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(easy-menu-define nil map ""
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'("Timers"
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["Cancel" timer-list-cancel t]))
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map))
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(define-derived-mode timer-list-mode special-mode "Timer-List"
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"Mode for listing and controlling timers."
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(setq bidi-paragraph-direction 'left-to-right)
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(setq truncate-lines t)
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(buffer-disable-undo)
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(setq-local revert-buffer-function #'list-timers)
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(setq buffer-read-only t)
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(setq header-line-format
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(format "%4s %10s %8s %s"
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"Idle" "Next" "Repeat" "Function")))
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(defun timer-list-cancel ()
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"Cancel the timer on the line under point."
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(interactive)
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(let ((timer (get-text-property (line-beginning-position) 'timer))
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(inhibit-read-only t))
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(unless timer
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(error "No timer on the current line"))
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(cancel-timer timer)
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(delete-region (line-beginning-position)
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(line-beginning-position 2))))
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(provide 'timer-list)
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;;; timer-list.el ends here
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