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;;; earcon.el --- Sound effects for messages
;; Copyright (C) 1996, 2000, 2001, 2002, 2003, 2004,
;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Steven L. Baur <steve@miranova.com>
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides access to sound effects in Gnus.
;;; Code:
(eval-when-compile (require 'cl))
(require 'gnus)
(require 'gnus-audio)
(require 'gnus-art)
(defgroup earcon nil
"Turn ** sounds ** into noise."
:group 'gnus-visual)
(defcustom earcon-prefix "**"
"*String denoting the start of an earcon."
:type 'string
:group 'earcon)
(defcustom earcon-suffix "**"
"String denoting the end of an earcon."
:type 'string
:group 'earcon)
(defcustom earcon-regexp-alist
'(("boring" 1 "Boring.au")
("evil[ \t]+laugh" 1 "Evil_Laugh.au")
("gag\\|puke" 1 "Puke.au")
("snicker" 1 "Snicker.au")
("meow" 1 "catmeow.wav")
("sob\\|boohoo" 1 "cry.wav")
("drum[ \t]*roll" 1 "drumroll.au")
("blast" 1 "explosion.au")
("flush\\|plonk!*" 1 "flush.au")
("kiss" 1 "kiss.wav")
("tee[ \t]*hee" 1 "laugh.au")
("shoot" 1 "shotgun.wav")
("yawn" 1 "snore.wav")
("cackle" 1 "witch.au")
("yell\\|roar" 1 "yell2.au")
("whoop-de-doo" 1 "whistle.au"))
"*A list of regexps to map earcons to real sounds."
:type '(repeat (list regexp
(integer :tag "Match")
(string :tag "Sound")))
:group 'earcon)
(defvar earcon-button-marker-list nil)
(make-variable-buffer-local 'earcon-button-marker-list)
;;; FIXME!! clone of code from gnus-vis.el FIXME!!
(defun earcon-article-push-button (event)
"Check text under the mouse pointer for a callback function.
If the text under the mouse pointer has a `earcon-callback' property,
call it with the value of the `earcon-data' text property."
(interactive "e")
(set-buffer (window-buffer (posn-window (event-start event))))
(let* ((pos (posn-point (event-start event)))
(data (get-text-property pos 'earcon-data))
(fun (get-text-property pos 'earcon-callback)))
(if fun (funcall fun data))))
(defun earcon-article-press-button ()
"Check text at point for a callback function.
If the text at point has a `earcon-callback' property,
call it with the value of the `earcon-data' text property."
(interactive)
(let* ((data (get-text-property (point) 'earcon-data))
(fun (get-text-property (point) 'earcon-callback)))
(if fun (funcall fun data))))
(defun earcon-article-prev-button (n)
"Move point to N buttons backward.
If N is negative, move forward instead."
(interactive "p")
(earcon-article-next-button (- n)))
(defun earcon-article-next-button (n)
"Move point to N buttons forward.
If N is negative, move backward instead."
(interactive "p")
(let ((function (if (< n 0) 'previous-single-property-change
'next-single-property-change))
(inhibit-point-motion-hooks t)
(backward (< n 0))
(limit (if (< n 0) (point-min) (point-max))))
(setq n (abs n))
(while (and (not (= limit (point)))
(> n 0))
;; Skip past the current button.
(when (get-text-property (point) 'earcon-callback)
(goto-char (funcall function (point) 'earcon-callback nil limit)))
;; Go to the next (or previous) button.
(gnus-goto-char (funcall function (point) 'earcon-callback nil limit))
;; Put point at the start of the button.
(when (and backward (not (get-text-property (point) 'earcon-callback)))
(goto-char (funcall function (point) 'earcon-callback nil limit)))
;; Skip past intangible buttons.
(when (get-text-property (point) 'intangible)
(incf n))
(decf n))
(unless (zerop n)
(gnus-message 5 "No more buttons"))
n))
(defun earcon-article-add-button (from to fun &optional data)
"Create a button between FROM and TO with callback FUN and data DATA."
(and (boundp gnus-article-button-face)
gnus-article-button-face
(gnus-overlay-put (gnus-make-overlay from to)
'face gnus-article-button-face))
(gnus-add-text-properties
from to
(nconc (and gnus-article-mouse-face
(list gnus-mouse-face-prop gnus-article-mouse-face))
(list 'gnus-callback fun)
(and data (list 'gnus-data data)))))
(defun earcon-button-entry ()
;; Return the first entry in `gnus-button-alist' matching this place.
(let ((alist earcon-regexp-alist)
(case-fold-search t)
(entry nil))
(while alist
(setq entry (pop alist))
(if (looking-at (car entry))
(setq alist nil)
(setq entry nil)))
entry))
(defun earcon-button-push (marker)
;; Push button starting at MARKER.
(save-excursion
(set-buffer gnus-article-buffer)
(goto-char marker)
(let* ((entry (earcon-button-entry))
(inhibit-point-motion-hooks t)
(fun 'gnus-audio-play)
(args (list (nth 2 entry))))
(cond
((fboundp fun)
(apply fun args))
((and (boundp fun)
(fboundp (symbol-value fun)))
(apply (symbol-value fun) args))
(t
(gnus-message 1 "You must define `%S' to use this button"
(cons fun args)))))))
;;; FIXME!! clone of code from gnus-vis.el FIXME!!
;;;###interactive
(defun earcon-region (beg end)
"Play Sounds in the region between point and mark."
(interactive "r")
(earcon-buffer (current-buffer) beg end))
;;;###interactive
(defun earcon-buffer (&optional buffer st nd)
(interactive)
(save-excursion
;; clear old markers.
(if (boundp 'earcon-button-marker-list)
(while earcon-button-marker-list
(set-marker (pop earcon-button-marker-list) nil))
(setq earcon-button-marker-list nil))
(and buffer (set-buffer buffer))
(let ((buffer-read-only nil)
(inhibit-point-motion-hooks t)
(case-fold-search t)
(alist earcon-regexp-alist)
beg entry regexp)
(goto-char (point-min))
(setq beg (point))
(while (setq entry (pop alist))
(setq regexp (concat (regexp-quote earcon-prefix)
".*\\("
(car entry)
"\\).*"
(regexp-quote earcon-suffix)))
(goto-char beg)
(while (re-search-forward regexp nil t)
(let* ((start (and entry (match-beginning 1)))
(end (and entry (match-end 1)))
(from (match-beginning 1)))
(earcon-article-add-button
start end 'earcon-button-push
(car (push (set-marker (make-marker) from)
earcon-button-marker-list)))
(gnus-audio-play (caddr entry))))))))
;;;###autoload
(defun gnus-earcon-display ()
"Play sounds in message buffers."
(interactive)
(save-excursion
(set-buffer gnus-article-buffer)
(goto-char (point-min))
;; Skip headers
(unless (search-forward "\n\n" nil t)
(goto-char (point-max)))
(sit-for 0)
(earcon-buffer (current-buffer) (point))))
;;;***
(provide 'earcon)
(run-hooks 'earcon-load-hook)
;; arch-tag: 844dfeea-980c-4ed0-907f-a30bf139691c
;;; earcon.el ends here
|
