2 "Interact with Squeezebox media servers"
6 (defcustom squeeze-server-address "localhost"
7 "Address for the Squeezebox server"
9 (defcustom squeeze-server-port 9090
10 "Port number for the Squeezebox server"
13 (defvar squeeze-mode-map
14 (let ((map (make-sparse-keymap)))
15 (define-key map (kbd "TAB") 'completion-at-point)
18 (defun squeeze-unhex-string (string)
20 (let ((case-fold-search t)
22 (while (string-match "%[0-9a-f][0-9a-f]" string start)
23 (let* ((s (match-beginning 0))
24 (ch1 (url-unhex (elt string (+ s 1))))
26 (url-unhex (elt string (+ s 2))))))
27 (insert (substring string start s)
28 (byte-to-string code))
29 (setq start (match-end 0))))
30 (insert (substring string start)))
33 (defun squeeze-unhex-and-decode-utf8-string (string)
34 (decode-coding-string (squeeze-unhex-string string) 'utf-8))
36 (define-derived-mode squeeze-mode comint-mode "Squeeze"
37 "Major mode for interacting with the Squeezebox Server CLI.\\<squeeze-mode-map>"
38 (add-to-list 'completion-at-point-functions 'squeeze-complete-command-at-point)
39 (add-hook 'comint-preoutput-filter-functions 'squeeze-unhex-and-decode-utf8-string nil t)
40 (add-hook 'comint-preoutput-filter-functions 'squeeze-update-state nil t))
42 (defvar squeeze-control-mode-map
43 (let ((map (make-sparse-keymap)))
44 (define-key map (kbd "SPC") 'squeeze-control-toggle-power)
45 (define-key map (kbd "f") 'squeeze-control-play-favorite)
46 (define-key map (kbd "g") 'squeeze-control-refresh)
47 (define-key map (kbd "+") 'squeeze-control-volume-up)
48 (define-key map (kbd "-") 'squeeze-control-volume-down)
49 (define-key map (kbd "t") 'squeeze-control-toggle-syncgroup-display)
50 (define-key map (kbd ">") 'squeeze-control-next-track)
51 (define-key map (kbd "<") 'squeeze-control-previous-track)
52 (define-key map (kbd "s") 'squeeze-control-select-player)
55 (defvar squeeze-control-current-player nil)
57 (defun squeeze-control-select-player (id)
59 (list (or (get-text-property (point) 'squeeze-playerid)
60 (let ((name (completing-read "Select player: " (mapcar 'squeeze-player-name squeeze-players))))
61 (squeeze-player-playerid (squeeze-find-player-from-name name))))))
62 (setq squeeze-control-current-player id))
64 (defun squeeze-control-next-track ()
66 (squeeze-send-string "%s playlist index +1" squeeze-control-current-player))
68 (defun squeeze-control-previous-track ()
70 (squeeze-send-string "%s playlist index -1" squeeze-control-current-player))
72 (define-derived-mode squeeze-control-mode special-mode "SqueezeControl"
73 "Major mode for controlling Squeezebox Servers.\\<squeeze-control-mode-map>")
75 (defvar squeeze-control-inhibit-display nil)
77 (lexical-let ((buffer (get-buffer-create " *squeeze-update-state*")))
78 (defun squeeze-update-state (string)
79 ;; FIXME: we could make this a lot more elegant by using the
80 ;; buffer abstraction more
81 (if (cl-position ?\n string)
83 (with-current-buffer buffer
85 (setq string (buffer-string))
87 (dolist (line (split-string string "\n"))
88 (when (squeeze-update-state-from-line line)
89 (setq done-something t)))
91 (unless squeeze-control-inhibit-display
92 (squeeze-control-display-players))))
93 (with-current-buffer buffer
97 (defconst squeeze-player-line-regexp
98 "^\\(\\(?:[0-9a-f]\\{2\\}%3A\\)\\{5\\}[0-9a-f]\\{2\\}\\) ")
100 (defun squeeze-find-player (id)
101 (dolist (player squeeze-players)
102 (when (string= id (squeeze-player-playerid player))
105 (defun squeeze-update-power (player state)
107 (setf (squeeze-player-power player) state)
108 (let ((current (squeeze-player-power player)))
109 (setf (squeeze-player-power player)
110 (cond ((string= current "0") "1")
111 ((string= current "1") "0"))))))
113 (defun squeeze-update-mixer-volume (player value)
114 (let ((current (squeeze-player-volume player))
115 (number (string-to-number value)))
116 (if (string-match "^[-+]" value)
117 (setf (squeeze-player-volume player)
118 (and current (max 0 (min 100 (+ current number)))))
119 (setf (squeeze-player-volume player) number))))
121 (require 'notifications)
123 (defun squeeze-update-state-from-line (string)
125 ((string-match "^players 0" string)
126 (setq squeeze-players (squeeze-parse-players-line string))
128 ((string-match "^syncgroups" string)
129 (setq squeeze-syncgroups (squeeze-parse-syncgroups-line string))
131 ((string-match squeeze-player-line-regexp string)
132 (let ((substring (substring string (match-end 0)))
133 (id (url-unhex-string (match-string 1 string))))
135 ((string-match "^playlist newsong \\(.*\\) \\([0-9]+\\)$" substring)
136 (let ((value (save-match-data (url-unhex-string (match-string 1 substring))))
137 (index (url-unhex-string (match-string 2 substring))))
138 (notifications-notify :title "Now playing" :body (encode-coding-string (format "%s: %s" index value) 'utf-8)))
140 ((string-match "^power\\(?: \\([01]\\)\\)?" substring)
141 (let ((state (match-string 1 substring))
142 (player (squeeze-find-player id)))
143 (squeeze-update-power player state))
145 ((string-match "^mixer volume \\(\\(?:-\\|%2B\\)?[0-9]*\\)" substring)
146 (let ((value (url-unhex-string (match-string 1 substring)))
147 (player (squeeze-find-player id)))
148 (squeeze-update-mixer-volume player value))
151 (defface squeeze-player-face
153 "Face for displaying players"
155 (defface squeeze-player-on-face
156 '((t :weight bold :inherit squeeze-player-face))
157 "Face for displaying players which are on"
159 (defface squeeze-player-off-face
160 '((t :weight light :inherit squeeze-player-face))
161 "Face for displaying players which are off"
164 (defface squeeze-mixer-face
166 "Face for displaying mixer information"
168 (defface squeeze-mixer-muted-face
169 '((t :weight light :inherit squeeze-mixer-face))
170 "Face for displaying mixer information when muted"
172 (defface squeeze-mixer-quiet-face
173 '((t :foreground "green3" :inherit squeeze-mixer-face))
174 "Face for quiet volume"
176 (defface squeeze-mixer-medium-face
177 '((t :foreground "gold" :inherit squeeze-mixer-face))
178 "Face for medium volume"
180 (defface squeeze-mixer-loud-face
181 '((t :foreground "OrangeRed1" :inherit squeeze-mixer-face))
182 "Face for loud volume"
184 (defface squeeze-mixer-muted-quiet-face
185 '((t :inherit (squeeze-mixer-muted-face squeeze-mixer-quiet-face)))
186 "Face for quiet volume when muted")
187 (defface squeeze-syncgroup-face
189 "Face for syncgroups"
192 (defun squeeze-mixer-compute-bar (vol width)
193 (let* ((exact (* width (/ vol 100.0)))
194 (nfull (floor exact))
195 (frac (- exact nfull))
196 (nblank (floor (- width exact))))
198 (make-string nfull ?█)
199 (if (= width (+ nfull nblank))
201 (string (aref " ▏▎▍▌▋▊▉█" (floor (+ frac 0.0625) 0.125))))
202 (make-string nblank ? ))))
204 (defun squeeze-mixer-make-bar (vol width)
205 (let ((bar (squeeze-mixer-compute-bar vol width))
206 (lo (floor (* 0.65 width)))
207 (hi (floor (* 0.9 width))))
209 (propertize (substring bar 0 lo) 'face 'squeeze-mixer-quiet-face)
210 (propertize (substring bar lo hi) 'face 'squeeze-mixer-medium-face)
211 (propertize (substring bar hi) 'face 'squeeze-mixer-loud-face)
212 (propertize "▏" 'intangible t))))
214 (defvar squeeze-players ())
215 (defvar squeeze-syncgroups ())
217 (defun squeeze-send-string (control &rest arguments)
218 (let* ((process (get-buffer-process "*squeeze*"))
219 (string (apply #'format control arguments))
220 (length (length string)))
221 (unless (and (> length 0) (char-equal (aref string (1- length)) ?\n))
222 (setq string (format "%s\n" string)))
224 (comint-send-string process string)
225 (error "can't find squeeze process"))))
227 (defun squeeze-control-query-syncgroups ()
229 (squeeze-send-string "syncgroups ?"))
231 (defun squeeze-control-query-players ()
233 (squeeze-send-string "players 0"))
235 (defun squeeze-control-toggle-power (&optional id)
238 (setq id (get-text-property (point) 'squeeze-playerid)))
239 (squeeze-send-string "%s power" id))
241 (defun squeeze-control-play-favorite (&optional favorite id)
242 (interactive "nFavourite: ")
244 (setq id (get-text-property (point) 'squeeze-playerid)))
245 (squeeze-send-string "%s favorites playlist play item_id:%d" id favorite))
247 (defun squeeze-control-query-power (&optional id)
250 (setq id (get-text-property (point) 'squeeze-playerid)))
252 (squeeze-send-string "%s power ?" id)))
254 (defun squeeze-control-volume-up (&optional id inc)
256 (unless inc (setq inc 5))
258 (setq id (get-text-property (point) 'squeeze-playerid)))
260 (squeeze-send-string "%s mixer volume %+d" id inc)))
262 (defun squeeze-control-volume-down (&optional id inc)
264 (unless inc (setq inc 5))
266 (setq id (get-text-property (point) 'squeeze-playerid)))
268 (squeeze-send-string "%s mixer volume %+d" id (- inc))))
270 (defun squeeze-control-volume-set (id val)
272 (squeeze-send-string "%s mixer volume %d" id val))
274 (defun squeeze-control-query-mixer-volume (&optional id)
277 (setq id (get-text-property (point) 'squeeze-playerid)))
279 (squeeze-send-string "%s mixer volume ?" id)))
281 (defun squeeze-control-player-face (player)
282 (let ((power (squeeze-player-power player)))
283 (cond ((string= power "1") 'squeeze-player-on-face)
284 ((string= power "0") 'squeeze-player-off-face)
285 (t 'squeeze-player-face))))
287 (defun squeeze-control-listen ()
288 (squeeze-send-string "listen 1"))
290 (defun squeeze-accept-process-output ()
291 (while (accept-process-output (get-buffer-process "*squeeze*") 0.1 nil t)))
293 (defun squeeze-control-refresh ()
295 (let ((squeeze-control-inhibit-display t))
296 (squeeze-control-query-players)
297 (squeeze-accept-process-output)
298 (squeeze-control-query-syncgroups)
299 (dolist (player squeeze-players)
300 (squeeze-control-query-power (squeeze-player-playerid player))
301 (squeeze-control-query-mixer-volume (squeeze-player-playerid player))))
302 (squeeze-accept-process-output)
303 (squeeze-control-display-players))
305 (defvar squeeze-control-mixer-map
306 (let ((map (make-sparse-keymap)))
307 (define-key map (kbd "RET") 'squeeze-control-mixer-set-volume)
308 (define-key map [mouse-1] 'squeeze-control-mixer-mouse-1)
311 (defun squeeze-control-compute-volume (pos)
312 (let* ((end (next-single-property-change pos 'keymap))
313 (start (previous-single-property-change end 'keymap)))
314 (/ (* 100 (- (point) start)) (- end start 1))))
316 (defun squeeze-control-mixer-mouse-1 (event)
318 (let* ((pos (cadadr event))
319 (val (squeeze-control-compute-volume pos))
320 (id (get-text-property pos 'squeeze-playerid)))
321 (squeeze-control-volume-set id val)))
323 (defun squeeze-control-mixer-set-volume ()
325 (let* ((val (squeeze-control-compute-volume (point)))
326 (id (get-text-property (point) 'squeeze-playerid)))
327 (squeeze-control-volume-set id val)))
329 (defvar squeeze-control-display-syncgroups nil)
331 (defun squeeze-control-toggle-syncgroup-display ()
333 (setf squeeze-control-display-syncgroups
334 (not squeeze-control-display-syncgroups))
335 (squeeze-control-display-players))
337 (defun squeeze-control-insert-player (player)
338 (insert (propertize (format "%20s" (squeeze-player-name player))
339 'face (squeeze-control-player-face player)
340 'squeeze-playerid (squeeze-player-playerid player)))
341 (when (squeeze-player-volume player)
343 (squeeze-mixer-make-bar (squeeze-player-volume player) 28)
344 'squeeze-playerid (squeeze-player-playerid player)
345 'keymap squeeze-control-mixer-map
347 'rear-nonsticky '(keymap))))
348 (insert (propertize "\n" 'intangible t)))
350 (defun squeeze-control-display-players ()
352 (with-current-buffer (get-buffer-create "*squeeze-control*")
353 (let ((saved (point)))
354 (squeeze-control-mode)
358 (squeeze-control-display-syncgroups
359 (let ((syncgroups squeeze-syncgroups)
362 (let ((names (getf syncgroups :sync_member_names))
363 ;; new server version has sync_members and sync_member_names
364 (members (split-string (getf syncgroups :sync_members) ",")))
365 (insert (propertize names 'face 'squeeze-syncgroup-face) "\n")
366 (dolist (member members)
367 (let ((player (squeeze-find-player member)))
368 (squeeze-control-insert-player player)
369 (push player seen))))
370 (setq syncgroups (cddddr syncgroups)))
371 (insert (propertize "No syncgroup" 'face 'squeeze-syncgroup-face) "\n")
372 (dolist (player squeeze-players)
373 (unless (member player seen)
374 (squeeze-control-insert-player player)))))
376 (dolist (player squeeze-players)
377 (squeeze-control-insert-player player))
381 (cl-defstruct (squeeze-player (:constructor squeeze-make-player))
382 playerindex playerid uuid ip name model isplayer displaytype canpoweroff connected power volume)
384 (defun squeeze-string-plistify (string start end)
386 (setq end (length string)))
390 (if (string-match "\\([a-z_]+\\)%3A\\([^ \n]+\\)" string start)
391 (let ((mend (match-end 0)))
394 (push (intern (format ":%s" (substring string (match-beginning 1) (match-end 1)))) result)
395 (push (decode-coding-string
396 (url-unhex-string (substring string (match-beginning 2) (match-end 2)))
403 (defun squeeze-parse-syncgroups-line (string)
404 (let ((syncgroupspos (string-match "^syncgroups " string))
405 (startpos (match-end 0)))
407 (squeeze-string-plistify string startpos (length string)))))
409 (defun squeeze-parse-count (string)
411 (let ((countpos (string-match "count%3A\\([0-9]*\\)\\>" string)))
414 (substring string (match-beginning 1) (match-end 1)))
416 (progn (string-match "^\\([a-z]*\\) " string)
417 (substring string (match-beginning 1) (match-end 1)))))
418 (message "no count found in %s line" kind)
421 (defun squeeze-parse-players-line (string)
422 (let ((count (squeeze-parse-count string))
423 (startpos (string-match "playerindex" string))
426 (dotimes (i (1- count))
427 (setq endpos (progn (string-match " connected%3A[0-1] " string startpos)
429 (push (apply 'squeeze-make-player (squeeze-string-plistify string startpos endpos)) result)
430 (setq startpos endpos))
431 (push (apply 'squeeze-make-player (squeeze-string-plistify string startpos (length string))) result))
435 (defun squeeze-complete-command-at-point ()
437 (list (progn (backward-word) (point))
438 (progn (forward-word) (point))
440 (mapcar 'squeeze-player-playerid squeeze-players)
441 '(;; General commands and queries
442 "login" "can" "version" "listen" "subscribe" "pref"
443 "logging" "getstring" "setsncredentials" "debug"
446 ;; Player commands and queries
447 "player" "count" "id" "uuid" "name" "ip" "model" "isplayer"
448 "displaytype" "canpoweroff" "?" "signalstrength" "connected"
449 "sleep" "sync" "syncgroups" "power" "mixer" "volume" "muting"
450 "bass" "treble" "pitch" "show" "display" "linesperscreen"
451 "displaynow" "playerpref" "button" "ir" "irenable"
452 "connect" "client" "forget" "disconnect" "players"
454 ;; Database commands and queries
455 "rescan" "rescanprogress" "abortscan" "wipecache" "info"
456 "total" "genres" "artists" "albums" "songs" "years"
457 "musicfolder" "playlists" "tracks" "new" "rename" "delete"
458 "edit" "songinfo" "titles" "search" "pragma"
460 ;; Playlist commands and queries
461 "play" "stop" "pause" "mode" "time" "genre" "artist" "album"
462 "title" "duration" "remote" "current_title" "path" "playlist"
463 "add" "insert" "deleteitem" "move" "delete" "preview" "resume"
464 "save" "loadalbum" "addalbum" "loadtracks" "addtracks"
465 "insertalbum" "deletealbum" "clear" "zap" "name" "url"
466 "modified" "playlistsinfo" "index" "shuffle" "repeat"
470 "serverstatus" "status" "displaystatus" "readdirectory"
474 ;; Alarm commands and queries
477 ;; Plugins commands and queries
481 (defun squeeze-read-server-parameters (address port)
482 (let ((host (read-string "Host: " nil nil address))
483 (port (read-number "Port: " port)))
486 (defun squeeze (&optional address port)
488 (unless address (setq address squeeze-server-address))
489 (unless port (setq port squeeze-server-port))
490 (when current-prefix-arg
491 (let ((parameters (squeeze-read-server-parameters address port)))
492 (setq address (car parameters)
493 port (cdr parameters))))
494 (let ((buffer (make-comint-in-buffer "squeeze" nil (cons address port))))
495 (switch-to-buffer buffer)
498 (defun squeeze-control (&optional address port)
500 (unless address (setq address squeeze-server-address))
501 (unless port (setq port squeeze-server-port))
502 (when current-prefix-arg
503 (let ((parameters (squeeze-read-server-parameters address port)))
504 (setq address (car parameters)
505 port (cdr parameters))))
506 (let ((current-prefix-arg nil))
507 (squeeze address port))
508 (let ((buffer (get-buffer-create "*squeeze-control*")))
509 (switch-to-buffer buffer)
510 (squeeze-control-listen)
511 (squeeze-control-refresh)
512 (squeeze-control-display-players)))