emacs/lisp/erc/erc-sound.el

151 lines
4.8 KiB
EmacsLisp

;;; erc-sound.el --- CTCP SOUND support for ERC -*- lexical-binding: t -*-
;; Copyright (C) 2002-2003, 2006-2024 Free Software Foundation, Inc.
;; Maintainer: Amin Bandali <bandali@gnu.org>, F. Jason Park <jp@neverwas.me>
;; URL: https://www.emacswiki.org/emacs/ErcSound
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Play sounds when users send you CTCP SOUND messages.
;; This file also defines the command /sound so that you can send
;; sound requests to other users.
;;; Usage:
;; Add the following to your .emacs if you want to play sounds.
;;
;; (require 'erc-sound)
;; (erc-sound-enable)
;;
;; To send requests to other users from within query buffers, type the
;; following:
;;
;; /sound filename optional-message-text
;;
;; You can also type the following:
;;
;; /ctcp nickname sound filename optional-message
;;; Code:
(require 'erc)
(defgroup erc-sound nil
"Make ERC play bells and whistles while chatting with people."
:group 'erc)
;;;###autoload(put 'ctcp-sound 'erc--module 'sound)
;;;###autoload(autoload 'erc-sound-mode "erc-sound")
(define-erc-module sound ctcp-sound
"In ERC sound mode, the client will respond to CTCP SOUND requests
and play sound files as requested."
;; Enable:
((add-hook 'erc-ctcp-query-SOUND-hook #'erc-ctcp-query-SOUND)
(define-key erc-mode-map "\C-c\C-s" #'erc-toggle-sound))
;; Disable:
((remove-hook 'erc-ctcp-query-SOUND-hook #'erc-ctcp-query-SOUND)
(define-key erc-mode-map "\C-c\C-s" #'undefined)))
(defvar erc-message-english-CTCP-SOUND "%n (%u@%h) plays %s:%m"
"English template for a CTCP SOUND message.")
(defcustom erc-play-sound t
"Play sounds when you receive CTCP SOUND requests."
:type 'boolean)
(defcustom erc-sound-path nil
"List of directories that contain sound samples to play on SOUND events."
:type '(repeat directory))
(defcustom erc-default-sound nil
"Play this sound if the requested file was not found.
If this is set to nil or the file doesn't exist a beep will sound."
:type '(choice (const nil)
file))
(defvar erc-ctcp-query-SOUND-hook nil
"Hook to run after receiving a CTCP SOUND request.")
(defun erc-cmd-SOUND (line &optional force)
"Send a CTCP SOUND message to the default target.
If `erc-play-sound' is non-nil, play the sound as well.
/sound filename optional-message-text
LINE is the text entered, including the command."
(cond
((string-match "^\\s-*\\(\\S-+\\)\\(\\s-.*\\)?$" line)
(let ((file (match-string 1 line))
(msg (match-string 2 line))
(tgt (erc-default-target)))
(if (null msg)
(setq msg "")
;; remove the first white space
(setq msg (substring msg 1)))
(if tgt
(progn
(erc-send-ctcp-message tgt (format "SOUND %s %s" file msg) force)
(if erc-play-sound (erc-play-sound file)))
(erc-display-message nil 'error (current-buffer) 'no-target))
t))
(t nil)))
(defun erc-ctcp-query-SOUND (_proc nick login host _to msg)
"Display a CTCP SOUND message and play sound if `erc-play-sound' is non-nil."
(when (string-match "^SOUND\\s-+\\(\\S-+\\)\\(\\(\\s-+.*\\)\\|\\(\\s-*\\)\\)$" msg)
(let ((sound (match-string 1 msg))
(comment (match-string 2 msg)))
(when erc-play-sound (erc-play-sound sound))
(erc-display-message
nil 'notice nil
'CTCP-SOUND ?n nick ?u login ?h host ?s sound ?m comment)))
nil)
(defun erc-play-sound (file)
"Play a sound file located in one of the directories in `erc-sound-path'.
See also `play-sound-file'."
(let ((filepath (erc-find-file file erc-sound-path)))
(if (and (not filepath) erc-default-sound)
(setq filepath erc-default-sound))
(cond ((and filepath (file-exists-p filepath))
(play-sound-file filepath))
(t (beep)))
(erc-log (format "Playing sound file %S" filepath))))
(defun erc-toggle-sound (&optional arg)
"Toggle playing sounds on and off.
With positive argument, turns them on. With any other argument
turns sounds off."
(interactive "P")
(cond ((and (numberp arg) (> arg 0))
(setq erc-play-sound t))
(arg (setq erc-play-sound nil))
(t (setq erc-play-sound (not erc-play-sound))))
(message "ERC sound is %s" (if erc-play-sound "ON" "OFF")))
(provide 'erc-sound)
;;; erc-sound.el ends here
;;
;; Local Variables:
;; generated-autoload-file: "erc-loaddefs.el"
;; End: