1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
;;; emms-volume.el --- Volume functions and a minor mode to adjust volume easily
;; Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
;; Author: Martin Schoenmakers <aiviru@diamond-age.net>
;; This file is part of EMMS.
;; EMMS 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, or (at your option)
;; any later version.
;;
;; EMMS 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 EMMS; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; This file provides generally two things:
;; Generic volume setting functions and some appropriate bindings for EMMS
;; playlist buffers. These can also be bound to global keys,however, the
;; second part may be more useful for this. This part provides functions
;; meant to be bound to a global key (the author uses C-c e + and C-c e -),
;; which then temporarily activates a minor mode allowing you to change the
;; volume with just + and -. This mode deactivates a short (configurable)
;; amount of time after the last volume change. This allows for easier volume
;; adjustment without getting in the way.
;;; History:
;; May 2006: First stab at writing the minor mode.
;;
;; 30 May 2006: Cleanup and restructuring to fit with EMMS.
;;; Todo:
;; Some of this could benefit from adding customize interfaces.
;;; Code:
(require 'emms)
(require 'emms-playlist-mode)
(require 'emms-volume-amixer)
;; Customize group
(defgroup emms-volume nil
"Volume setting for EMMS."
:group 'emms)
;; General volume setting related code.
(defcustom emms-volume-change-function 'emms-volume-amixer-change
"*The function to use to change the volume.
If you have your own functions for changing volume, set this."
:type '(choice (const :tag "Amixer" emms-volume-amixer-change)
(const :tag "MPD" emms-volume-mpd-change)
(const :tag "Pulseaudio" emms-volume-pule-change)
(function :tag "Lisp function"))
:group 'emms-volume)
(defcustom emms-volume-change-amount 2
"The amount to use when raising or lowering the volume using the
emms-volume interface.
This should be a positive integer."
:type 'integer
:group 'emms-volume)
;;;###autoload
(defun emms-volume-raise ()
"Raise the speaker volume."
(interactive)
(funcall emms-volume-change-function emms-volume-change-amount))
;;;###autoload
(defun emms-volume-lower ()
"Lower the speaker volume."
(interactive)
(funcall emms-volume-change-function (- emms-volume-change-amount)))
(define-key emms-playlist-mode-map (kbd "+") 'emms-volume-raise)
(define-key emms-playlist-mode-map (kbd "-") 'emms-volume-lower)
;; Code specific to the minor mode.
(define-minor-mode emms-volume-minor-mode
"Allows volume setting with + and - after an initial key combo."
:global t
:init-value nil
:lighter " (+/-)"
:keymap '(("+" . emms-volume-mode-plus)
("-" . emms-volume-mode-minus)))
(defvar emms-volume-mode-timeout 2
"*The timeout in amount of seconds used by `emms-volume-minor-mode'.")
(defvar emms-volume-mode-timer nil
"The timer `emms-volume-minor-mode' uses.")
;;;###autoload
(defun emms-volume-mode-plus ()
"Raise volume and enable or extend the `emms-volume-minor-mode' timeout."
(interactive)
(emms-volume-raise)
(emms-volume-mode-start-or-extend))
;;;###autoload
(defun emms-volume-mode-minus ()
"Lower volume and enable or extend the `emms-volume-minor-mode' timeout."
(interactive)
(emms-volume-lower)
(emms-volume-mode-start-or-extend))
(defun emms-volume-mode-disable-timer ()
"Disable `emms-volume-minor-mode' timer."
(cancel-timer emms-volume-mode-timer)
(setq emms-volume-mode-timer nil))
(defun emms-volume-mode-set-timer ()
"Set a new `emms-volume-minor-mode' timer."
(when emms-volume-mode-timer
(emms-volume-mode-disable-timer))
(setq emms-volume-mode-timer (run-at-time emms-volume-mode-timeout
nil
'emms-volume-mode-timer-timeout)))
(defun emms-volume-mode-timer-timeout ()
"Function to disable `emms-volume-minor-mode' at timeout."
(setq emms-volume-mode-timer nil)
(emms-volume-minor-mode -1))
(defun emms-volume-mode-start-or-extend ()
"Start `emms-volume-minor-mode' or extend its running time."
(when (null emms-volume-minor-mode)
(emms-volume-minor-mode 1))
(emms-volume-mode-set-timer))
(provide 'emms-volume)
;;; emms-volume.el ends here
|
