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-;; jao-random-album.el -- play random albums
-
-;; Copyright (C) 2009, 2010, 2017, 2018, 2019 Jose Antonio Ortega Ruiz
-
-;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
-;; Start date: Sat Jul 04, 2009 13:06
-
-;; This file is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3 of the License, or
-;; (at your option) any later version.
-
-;; This file is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-(require 'jao-notify)
-
-(defvar jao-random-album-p t)
-(defvar jao-random-lines nil)
-(defvar jao-random-lines-file (expand-file-name "~/.emacs.d/random-lines"))
-(defvar jao-random-album-notify-p t)
-(defvar jao-random-album-notify-icon nil)
-(defvar jao-random-album-skip-lines 2)
-
-(defun jao-random-lines ()
- (or jao-random-lines
- (and (file-exists-p jao-random-lines-file)
- (with-current-buffer
- (find-file-noselect jao-random-lines-file)
- (goto-char (point-min))
- (setq jao-random-lines (read (current-buffer)))))
- (dotimes (n (1- (line-number-at-pos (point-max)))
- jao-random-lines)
- (when (> n jao-random-album-skip-lines)
- (push (1+ n) jao-random-lines)))))
-
-(defun jao-random-lines-save ()
- (with-current-buffer (find-file-noselect jao-random-lines-file)
- (delete-region (point-min) (point-max))
- (insert (format "%s\n" jao-random-lines))
- (save-buffer)))
-
-(defun jao-goto-random-album ()
- (let* ((pos (random (length (jao-random-lines))))
- (line (nth pos jao-random-lines)))
- (setq jao-random-lines (remove line jao-random-lines))
- (jao-random-lines-save)
- (goto-line line)))
-
-
-;; User interface
-(defvar jao-random-album-buffer)
-(defvar jao-random-album-add-tracks-and-play)
-(defvar jao-random-album-stop)
-
-(defun jao-random-album-start ()
- (interactive)
- (setq jao-random-album-p t)
- (jao-random-album-next))
-
-(defun jao-random-album-stop ()
- (interactive)
- (setq jao-random-album-p nil)
- (funcall jao-random-album-stop))
-
-(defun jao-random-album-toggle ()
- (interactive)
- (setq jao-random-album-p (not jao-random-album-p))
- (message "Random album %s"
- (if jao-random-album-p "enabled" "disabled")))
-
-(defun jao-random-album-next ()
- (interactive)
- (with-current-buffer (get-buffer (funcall jao-random-album-buffer))
- (save-excursion
- (jao-goto-random-album)
- (let ((album (string-trim
- (substring-no-properties (thing-at-point 'line) 0 -1))))
- (funcall jao-random-album-add-tracks-and-play)
- (when jao-random-album-notify-p
- (jao-notify album "Next album" jao-random-album-notify-icon))))))
-
-(defun jao-random-album-reset ()
- (interactive)
- (setq jao-random-lines nil)
- (jao-random-lines-save))
-
-(defun jao-random-album-setup (album-buffer add-and-play stop &optional icon)
- (setq jao-random-album-buffer album-buffer
- jao-random-album-add-tracks-and-play add-and-play
- jao-random-album-stop stop
- jao-random-album-notify-icon icon))
-
-
-(provide 'jao-random-album)
-;;; jao-random-album.el ends here