| 1 | ;;; emms-lyrics.el --- Display lyrics synchronically -*- lexical-binding: t; -*- |
| 2 | |
| 3 | ;; Copyright (C) 2005-2021 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: William Xu <william.xwl@gmail.com> |
| 6 | ;; Keywords: emms music lyrics |
| 7 | |
| 8 | ;; This file is part of EMMS. |
| 9 | |
| 10 | ;; EMMS is free software; you can redistribute it and/or modify |
| 11 | ;; it under the terms of the GNU General Public License as published by |
| 12 | ;; the Free Software Foundation; either version 3, or (at your option) |
| 13 | ;; any later version. |
| 14 | ;; |
| 15 | ;; EMMS is distributed in the hope that it will be useful, |
| 16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ;; GNU General Public License for more details. |
| 19 | ;; |
| 20 | ;; You should have received a copy of the GNU General Public License |
| 21 | ;; along with EMMS; if not, write to the Free Software Foundation, |
| 22 | ;; Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 23 | |
| 24 | ;;; Commentary: |
| 25 | |
| 26 | ;; This package enables you to play music files and display lyrics |
| 27 | ;; synchronically! :-) Plus, it provides a `emms-lyrics-mode' for |
| 28 | ;; making lyric files. |
| 29 | |
| 30 | ;; Put this file into your load-path and the following into your |
| 31 | ;; ~/.emacs: |
| 32 | ;; (require 'emms-lyrics) |
| 33 | ;; |
| 34 | ;; Then either `M-x emms-lyrics-enable' or add (emms-lyrics 1) in |
| 35 | ;; your .emacs to enable. |
| 36 | |
| 37 | ;;; TODO: |
| 38 | |
| 39 | ;; 1. Maybe the lyric setup should run before `emms-start'. |
| 40 | ;; 2. Give a user a chance to choose when finding out multiple lyrics. |
| 41 | ;; 3. Search .lrc format lyrics from internet ? |
| 42 | |
| 43 | ;;; Code: |
| 44 | |
| 45 | (require 'emms) |
| 46 | (require 'emms-player-simple) |
| 47 | (require 'emms-source-file) |
| 48 | (require 'time-date) |
| 49 | (require 'emms-url) |
| 50 | (require 'emms-compat) |
| 51 | |
| 52 | ;;; User Customization |
| 53 | |
| 54 | (defgroup emms-lyrics nil |
| 55 | "Lyrics module for EMMS." |
| 56 | :group 'emms) |
| 57 | |
| 58 | (defcustom emms-lyrics-display-on-modeline t |
| 59 | "If non-nil, display lyrics on mode line." |
| 60 | :type 'boolean) |
| 61 | |
| 62 | (defcustom emms-lyrics-display-on-minibuffer nil |
| 63 | "If non-nil, display lyrics on minibuffer." |
| 64 | :type 'boolean) |
| 65 | |
| 66 | (defcustom emms-lyrics-display-buffer nil |
| 67 | "Non-nil will create deciated `emms-lyrics-buffer' to display lyrics." |
| 68 | :type 'boolean) |
| 69 | |
| 70 | (defcustom emms-lyrics-dir "~/music/lyrics" |
| 71 | "Local lyrics repository. |
| 72 | `emms-lyrics-find-lyric' will look for lyrics in current directory(i.e., |
| 73 | same as the music file) and this directory." |
| 74 | :type 'string) |
| 75 | |
| 76 | (defcustom emms-lyrics-display-format " %s " |
| 77 | "Format for displaying lyrics." |
| 78 | :type 'string) |
| 79 | |
| 80 | (defcustom emms-lyrics-coding-system nil |
| 81 | "Coding system for reading lyrics files. |
| 82 | |
| 83 | If all your lyrics use the same coding system, you can set this |
| 84 | variable to that value; else you'd better leave it to nil, and |
| 85 | rely on `prefer-coding-system', `file-coding-system-alist' or |
| 86 | \(info \"(emacs)File Variables\"), sorted by priority |
| 87 | increasingly." |
| 88 | :type 'coding-system) |
| 89 | |
| 90 | (defcustom emms-lyrics-mode-hook nil |
| 91 | "Normal hook run after entering Emms Lyric mode." |
| 92 | :type 'hook) |
| 93 | |
| 94 | (defcustom emms-lyrics-find-lyric-function 'emms-lyrics-find-lyric |
| 95 | "Function for finding lyric files." |
| 96 | :type 'symbol) |
| 97 | |
| 98 | (defcustom emms-lyrics-scroll-p t |
| 99 | "Non-nil value will enable lyrics scrolling on mode line. |
| 100 | |
| 101 | Note: Even if this is set to t, it also depends on |
| 102 | `emms-lyrics-display-on-modeline' to be t." |
| 103 | :type 'boolean) |
| 104 | |
| 105 | (defcustom emms-lyrics-scroll-timer-interval 0.4 |
| 106 | "Interval between scroller timers. The shorter, the faster." |
| 107 | :type 'number) |
| 108 | |
| 109 | |
| 110 | ;;; User Interfaces |
| 111 | |
| 112 | (defvar emms-lyrics-display-p t |
| 113 | "If non-nil, will diplay lyrics.") |
| 114 | |
| 115 | (defvar emms-lyrics-mode-line-string "" |
| 116 | "Current lyric.") |
| 117 | |
| 118 | (defvar emms-lyrics-buffer nil |
| 119 | "Buffer to show lyrics.") |
| 120 | |
| 121 | (defvar emms-lyrics-chinese-url "http://mp3.baidu.com/m?f=ms&rn=10&tn=baidump3lyric&ct=150994944&word=%s&lm=-1" |
| 122 | "URL used to find Chinese lyrics. |
| 123 | Should contain one %s which is replaced with the filename.") |
| 124 | |
| 125 | (defvar emms-lyrics-latin-url "http://lyrics.wikia.com/%s%s" |
| 126 | "URL used to find Latin lyrics. |
| 127 | Should contain two %s-expressions. The first is replaced with |
| 128 | the artist and second with the title.") |
| 129 | |
| 130 | ;;;###autoload |
| 131 | (defun emms-lyrics-enable () |
| 132 | "Enable displaying emms lyrics." |
| 133 | (interactive) |
| 134 | (emms-lyrics 1) |
| 135 | (message "emms lyrics enabled.")) |
| 136 | |
| 137 | ;;;###autoload |
| 138 | (defun emms-lyrics-disable () |
| 139 | "Disable displaying emms lyrics." |
| 140 | (interactive) |
| 141 | (emms-lyrics -1) |
| 142 | (message "EMMS lyrics disabled")) |
| 143 | |
| 144 | ;;;###autoload |
| 145 | (defun emms-lyrics-toggle () |
| 146 | "Toggle displaying emms lyrics." |
| 147 | (interactive) |
| 148 | (if emms-lyrics-display-p |
| 149 | (emms-lyrics-disable) |
| 150 | (emms-lyrics-enable))) |
| 151 | |
| 152 | (defun emms-lyrics-toggle-display-on-minibuffer () |
| 153 | "Toggle display lyrics on minibbufer." |
| 154 | (interactive) |
| 155 | (if emms-lyrics-display-on-minibuffer |
| 156 | (progn |
| 157 | (setq emms-lyrics-display-on-minibuffer nil) |
| 158 | (message "Disable lyrics on minibufer")) |
| 159 | (setq emms-lyrics-display-on-minibuffer t) |
| 160 | (message "Enable lyrics on minibufer"))) |
| 161 | |
| 162 | (defun emms-lyrics-toggle-display-on-modeline () |
| 163 | "Toggle display lyrics on mode line." |
| 164 | (interactive) |
| 165 | (if emms-lyrics-display-on-modeline |
| 166 | (progn |
| 167 | (setq emms-lyrics-display-on-modeline nil |
| 168 | emms-lyrics-mode-line-string "") |
| 169 | (message "Disable lyrics on mode line")) |
| 170 | (setq emms-lyrics-display-on-modeline t) |
| 171 | (message "Enable lyrics on mode line"))) |
| 172 | |
| 173 | (defun emms-lyrics-toggle-display-buffer () |
| 174 | "Toggle showing/hiding `emms-lyrics-buffer'." |
| 175 | (interactive) |
| 176 | (let ((w (get-buffer-window emms-lyrics-buffer))) |
| 177 | (if w |
| 178 | (delete-window w) |
| 179 | (save-selected-window |
| 180 | (pop-to-buffer emms-lyrics-buffer) |
| 181 | (set-window-dedicated-p w t))))) |
| 182 | |
| 183 | (defun emms-lyrics (arg) |
| 184 | "Turn on emms lyrics display if ARG is positive, off otherwise." |
| 185 | (interactive "p") |
| 186 | (if (and arg (> arg 0)) |
| 187 | (progn |
| 188 | (setq emms-lyrics-display-p t) |
| 189 | (add-hook 'emms-player-started-hook 'emms-lyrics-start) |
| 190 | (add-hook 'emms-player-stopped-hook 'emms-lyrics-stop) |
| 191 | (add-hook 'emms-player-finished-hook 'emms-lyrics-stop) |
| 192 | (add-hook 'emms-player-paused-hook 'emms-lyrics-pause) |
| 193 | (add-hook 'emms-player-seeked-functions 'emms-lyrics-seek) |
| 194 | (add-hook 'emms-player-time-set-functions 'emms-lyrics-sync)) |
| 195 | (emms-lyrics-stop) |
| 196 | (setq emms-lyrics-display-p nil) |
| 197 | (emms-lyrics-restore-mode-line) |
| 198 | (remove-hook 'emms-player-started-hook 'emms-lyrics-start) |
| 199 | (remove-hook 'emms-player-stopped-hook 'emms-lyrics-stop) |
| 200 | (remove-hook 'emms-player-finished-hook 'emms-lyrics-stop) |
| 201 | (remove-hook 'emms-player-paused-hook 'emms-lyrics-pause) |
| 202 | (remove-hook 'emms-player-seeked-functions 'emms-lyrics-seek) |
| 203 | (remove-hook 'emms-player-time-set-functions 'emms-lyrics-sync))) |
| 204 | |
| 205 | (defun emms-lyrics-visit-lyric () |
| 206 | "Visit playing track's lyric file. |
| 207 | If we can't find it from local disk, then search it from internet." |
| 208 | (interactive) |
| 209 | (let* ((track (emms-playlist-current-selected-track)) |
| 210 | (name (emms-track-get track 'name)) |
| 211 | (lrc (funcall emms-lyrics-find-lyric-function |
| 212 | (emms-replace-regexp-in-string |
| 213 | (concat "\\." (file-name-extension name) "\\'") |
| 214 | ".lrc" |
| 215 | (file-name-nondirectory name))))) |
| 216 | (if (and lrc (file-exists-p lrc) (not (string= lrc ""))) |
| 217 | (find-file lrc) |
| 218 | (message "Lyric file does not exist on file-system. Searching online...") |
| 219 | (let* ((title (or (emms-track-get track 'info-title) |
| 220 | (file-name-sans-extension |
| 221 | (file-name-nondirectory name)))) |
| 222 | (artist (when (emms-track-get track 'info-title) |
| 223 | (emms-track-get track 'info-artist))) |
| 224 | (url |
| 225 | (cond ((string-match "\\cc" title) ; Chinese lyrics. |
| 226 | ;; Since tag info might be encoded using various coding |
| 227 | ;; systems, we'd better fall back on filename. |
| 228 | (format emms-lyrics-chinese-url |
| 229 | (emms-url-quote-plus |
| 230 | (encode-coding-string name 'gb2312)))) |
| 231 | (t ; English lyrics.g |
| 232 | (format emms-lyrics-latin-url |
| 233 | (if artist (concat (emms-url-quote-underscore artist) ":") "") |
| 234 | (emms-url-quote-underscore title)))))) |
| 235 | (if (fboundp 'eww) |
| 236 | (progn (require 'eww) |
| 237 | (let ((readable-hook (when (fboundp 'eww-readable) |
| 238 | (add-hook 'eww-after-render-hook #'eww-readable) |
| 239 | #'eww-readable))) |
| 240 | (eww url) |
| 241 | (when readable-hook |
| 242 | (remove-hook 'eww-after-render-hook readable-hook)))) |
| 243 | (browse-url url)) |
| 244 | (message "Lyric file does not exist on file-system. Searching online..."))))) |
| 245 | |
| 246 | |
| 247 | ;;; EMMS Lyrics |
| 248 | |
| 249 | (defvar emms-lyrics-alist nil |
| 250 | "a list of the form: \\='((time0 . lyric0) (time1 . lyric1)...)). In |
| 251 | short, at time-i, display lyric-i.") |
| 252 | |
| 253 | (defvar emms-lyrics-timers nil |
| 254 | "timers for displaying lyric.") |
| 255 | |
| 256 | (defvar emms-lyrics-start-time nil |
| 257 | "emms lyric start time.") |
| 258 | |
| 259 | (defvar emms-lyrics-pause-time nil |
| 260 | "emms lyric pause time.") |
| 261 | |
| 262 | (defvar emms-lyrics-elapsed-time 0 |
| 263 | "How long time has emms lyric played.") |
| 264 | |
| 265 | (defvar emms-lyrics-scroll-timers nil |
| 266 | "Lyrics scroller timers.") |
| 267 | |
| 268 | (defun emms-lyrics-read-file (file &optional catchup) |
| 269 | "Read a lyric file(LRC format). |
| 270 | Optional CATCHUP is for recognizing `emms-lyrics-catchup\\='. |
| 271 | FILE should end up with \".lrc\", its content looks like one of the |
| 272 | following: |
| 273 | |
| 274 | [1:39]I love you, Emacs! |
| 275 | [00:39]I love you, Emacs! |
| 276 | [00:39.67]I love you, Emacs! |
| 277 | |
| 278 | FILE should be under the same directory as the music file, or under |
| 279 | `emms-lyrics-dir\\='." |
| 280 | (or catchup |
| 281 | (setq file (funcall emms-lyrics-find-lyric-function file))) |
| 282 | (when (and file (file-exists-p file)) |
| 283 | (with-temp-buffer |
| 284 | (let ((coding-system-for-read emms-lyrics-coding-system)) |
| 285 | (emms-insert-file-contents file) |
| 286 | (while (search-forward-regexp "\\[[0-9:.]+\\].*" nil t) |
| 287 | (let ((lyric-string (match-string 0)) |
| 288 | (time 0) |
| 289 | (lyric "")) |
| 290 | (setq lyric |
| 291 | (emms-replace-regexp-in-string ".*\\]" "" lyric-string)) |
| 292 | (while (string-match "\\[[0-9:.]+\\]" lyric-string) |
| 293 | (let* ((time-string (match-string 0 lyric-string)) |
| 294 | (semi-pos (string-match ":" time-string))) |
| 295 | (setq time |
| 296 | (+ (* (string-to-number |
| 297 | (substring time-string 1 semi-pos)) |
| 298 | 60) |
| 299 | (string-to-number |
| 300 | (substring time-string |
| 301 | (1+ semi-pos) |
| 302 | (1- (length time-string)))))) |
| 303 | (setq lyric-string |
| 304 | (substring lyric-string (length time-string))) |
| 305 | (setq emms-lyrics-alist |
| 306 | (append emms-lyrics-alist `((,time . ,lyric)))) |
| 307 | (setq time 0))))) |
| 308 | (setq emms-lyrics-alist |
| 309 | (sort emms-lyrics-alist (lambda (a b) (< (car a) (car b)))))) |
| 310 | t))) |
| 311 | |
| 312 | (defun emms-lyrics-create-buffer () |
| 313 | "Create `emms-lyrics-buffer\\=' dedicated to lyrics. " |
| 314 | ;; leading white space in buffer name to hide the buffer |
| 315 | (setq emms-lyrics-buffer (get-buffer-create " *EMMS Lyrics*")) |
| 316 | (set-buffer emms-lyrics-buffer) |
| 317 | (setq buffer-read-only nil |
| 318 | cursor-type nil) |
| 319 | (erase-buffer) |
| 320 | (mapc (lambda (time-lyric) (insert (cdr time-lyric) "\n")) |
| 321 | emms-lyrics-alist) |
| 322 | (goto-char (point-min)) |
| 323 | (emms-activate-highlighting-mode) |
| 324 | (setq buffer-read-only t)) |
| 325 | |
| 326 | (defun emms-lyrics-start () |
| 327 | "Start displaying lryics." |
| 328 | (setq emms-lyrics-start-time (current-time) |
| 329 | emms-lyrics-pause-time nil |
| 330 | emms-lyrics-elapsed-time 0) |
| 331 | (when (let ((file |
| 332 | (emms-track-get |
| 333 | (emms-playlist-current-selected-track) |
| 334 | 'name))) |
| 335 | (emms-lyrics-read-file |
| 336 | (emms-replace-regexp-in-string |
| 337 | (concat "\\." (file-name-extension file) "\\'") |
| 338 | ".lrc" |
| 339 | (file-name-nondirectory file)))) |
| 340 | (when emms-lyrics-display-buffer |
| 341 | (emms-lyrics-create-buffer)) |
| 342 | (emms-lyrics-set-timer))) |
| 343 | |
| 344 | (defun emms-lyrics-catchup (lrc) |
| 345 | "Catchup with later downloaded LRC file(full path). |
| 346 | If you write some lyrics crawler, which is running asynchronically, |
| 347 | then this function would be useful to call when the crawler finishes its |
| 348 | job." |
| 349 | (let ((old-start emms-lyrics-start-time)) |
| 350 | (setq emms-lyrics-start-time (current-time) |
| 351 | emms-lyrics-pause-time nil |
| 352 | emms-lyrics-elapsed-time 0) |
| 353 | (emms-lyrics-read-file lrc t) |
| 354 | (emms-lyrics-set-timer) |
| 355 | (emms-lyrics-seek (float-time (time-since old-start))))) |
| 356 | |
| 357 | (defun emms-lyrics-stop () |
| 358 | "Stop displaying lyrics." |
| 359 | (interactive) |
| 360 | (when emms-lyrics-alist |
| 361 | (mapc #'emms-cancel-timer emms-lyrics-timers) |
| 362 | (if (or (not emms-player-paused-p) |
| 363 | emms-player-stopped-p) |
| 364 | (setq emms-lyrics-alist nil |
| 365 | emms-lyrics-timers nil |
| 366 | emms-lyrics-mode-line-string "")))) |
| 367 | |
| 368 | (defun emms-lyrics-pause () |
| 369 | "Pause displaying lyrics." |
| 370 | (if emms-player-paused-p |
| 371 | (setq emms-lyrics-pause-time (current-time)) |
| 372 | (when emms-lyrics-pause-time |
| 373 | (setq emms-lyrics-elapsed-time |
| 374 | (+ (float-time |
| 375 | (time-subtract emms-lyrics-pause-time |
| 376 | emms-lyrics-start-time)) |
| 377 | emms-lyrics-elapsed-time))) |
| 378 | (setq emms-lyrics-start-time (current-time))) |
| 379 | (when emms-lyrics-alist |
| 380 | (if emms-player-paused-p |
| 381 | (emms-lyrics-stop) |
| 382 | (emms-lyrics-set-timer)))) |
| 383 | |
| 384 | (defun emms-lyrics-seek (sec) |
| 385 | "Seek forward or backward SEC seconds lyrics." |
| 386 | (setq emms-lyrics-elapsed-time |
| 387 | (+ emms-lyrics-elapsed-time |
| 388 | (float-time (time-since emms-lyrics-start-time)) |
| 389 | sec)) |
| 390 | (when (< emms-lyrics-elapsed-time 0) ; back to start point |
| 391 | (setq emms-lyrics-elapsed-time 0)) |
| 392 | (setq emms-lyrics-start-time (current-time)) |
| 393 | (when emms-lyrics-alist |
| 394 | (let ((paused-orig emms-player-paused-p)) |
| 395 | (setq emms-player-paused-p t) |
| 396 | (emms-lyrics-stop) |
| 397 | (setq emms-player-paused-p paused-orig)) |
| 398 | (emms-lyrics-set-timer))) |
| 399 | |
| 400 | (defun emms-lyrics-sync (sec) |
| 401 | "Synchronize the lyric display at SEC seconds." |
| 402 | (setq emms-lyrics-start-time (current-time) |
| 403 | emms-lyrics-elapsed-time 0) |
| 404 | (emms-lyrics-seek sec)) |
| 405 | |
| 406 | (defun emms-lyrics-set-timer () |
| 407 | "Set timers for displaying lyrics." |
| 408 | (setq emms-lyrics-timers '()) |
| 409 | (let ((lyrics-alist emms-lyrics-alist) |
| 410 | (line 0)) |
| 411 | (while lyrics-alist |
| 412 | (let ((time (- (caar lyrics-alist) emms-lyrics-elapsed-time)) |
| 413 | (lyric (cdar lyrics-alist)) |
| 414 | (next-time (and (cdr lyrics-alist) |
| 415 | (- (car (cadr lyrics-alist)) |
| 416 | emms-lyrics-elapsed-time))) |
| 417 | (next-lyric (and (cdr lyrics-alist) |
| 418 | (cdr (cadr lyrics-alist))))) |
| 419 | (setq line (1+ line)) |
| 420 | (when (> time 0) |
| 421 | (setq emms-lyrics-timers |
| 422 | (append emms-lyrics-timers |
| 423 | (list |
| 424 | (run-at-time (format "%d sec" time) |
| 425 | nil |
| 426 | #'emms-lyrics-display-handler |
| 427 | lyric |
| 428 | next-lyric |
| 429 | line |
| 430 | (and next-time (- next-time time))))))) |
| 431 | (setq lyrics-alist (cdr lyrics-alist)))))) |
| 432 | |
| 433 | (defun emms-lyrics-mode-line () |
| 434 | "Add lyric to the mode line." |
| 435 | (or global-mode-string (setq global-mode-string '(""))) |
| 436 | (unless (member 'emms-lyrics-mode-line-string |
| 437 | global-mode-string) |
| 438 | (setq global-mode-string |
| 439 | (append global-mode-string |
| 440 | '(emms-lyrics-mode-line-string))))) |
| 441 | |
| 442 | (defun emms-lyrics-restore-mode-line () |
| 443 | "Restore the mode line." |
| 444 | (setq global-mode-string |
| 445 | (remove 'emms-lyrics-mode-line-string global-mode-string)) |
| 446 | (force-mode-line-update)) |
| 447 | |
| 448 | (defun emms-lyrics-display-handler (lyric next-lyric line diff) |
| 449 | "DIFF is the timestamp differences between current LYRIC and |
| 450 | NEXT-LYRIC; LINE corresponds line number for LYRIC in `emms-lyrics-buffer\\='." |
| 451 | (emms-lyrics-display (format emms-lyrics-display-format lyric) line) |
| 452 | (when (and emms-lyrics-display-on-modeline emms-lyrics-scroll-p) |
| 453 | (emms-lyrics-scroll lyric next-lyric diff))) |
| 454 | |
| 455 | (defun emms-lyrics-display (lyric line) |
| 456 | "Display LYRIC now. |
| 457 | See `emms-lyrics-display-on-modeline\\=' and |
| 458 | `emms-lyrics-display-on-minibuffer\\=' on how to config where to |
| 459 | display." |
| 460 | (when emms-lyrics-alist |
| 461 | (when emms-lyrics-display-on-modeline |
| 462 | (emms-lyrics-mode-line) |
| 463 | (setq emms-lyrics-mode-line-string lyric) |
| 464 | ;; (setq emms-lyrics-mode-line-string ; make it fit scroller width |
| 465 | ;; (concat emms-lyrics-mode-line-string |
| 466 | ;; (make-string |
| 467 | ;; (abs (- emms-lyrics-scroll-width (length lyric))) |
| 468 | ;; (string-to-char " ")))) |
| 469 | (force-mode-line-update)) |
| 470 | |
| 471 | (when emms-lyrics-display-on-minibuffer |
| 472 | (unless (minibuffer-window-active-p (selected-window)) |
| 473 | (message lyric))) |
| 474 | |
| 475 | (when emms-lyrics-display-buffer |
| 476 | (with-current-buffer emms-lyrics-buffer |
| 477 | (when line |
| 478 | (goto-char (point-min)) |
| 479 | (forward-line (1- line)) |
| 480 | (emms-line-highlight)))))) |
| 481 | |
| 482 | (defun emms-lyrics-find-lyric (file) |
| 483 | "Return full path of found lrc FILE, or nil if not found. |
| 484 | Use `emms-source-file-directory-tree-function\\=' to find lrc FILE under |
| 485 | current directory and `emms-lyrics-dir\\='. |
| 486 | e.g., (emms-lyrics-find-lyric \"abc.lrc\")" |
| 487 | (let* ((track (emms-playlist-current-selected-track)) |
| 488 | (lyric-under-curr-dir |
| 489 | (concat (file-name-directory (emms-track-get track 'name)) |
| 490 | file))) |
| 491 | (or (and (eq (emms-track-type track) 'file) |
| 492 | (file-exists-p lyric-under-curr-dir) |
| 493 | lyric-under-curr-dir) |
| 494 | (car (funcall emms-source-file-directory-tree-function |
| 495 | emms-lyrics-dir |
| 496 | file))))) |
| 497 | |
| 498 | ;; (setq emms-lyrics-scroll-width 20) |
| 499 | |
| 500 | (defun emms-lyrics-scroll (lyric next-lyric diff) |
| 501 | "Scroll LYRIC to left smoothly in DIFF seconds. |
| 502 | DIFF is the timestamp differences between current LYRIC and |
| 503 | NEXT-LYRIC." |
| 504 | (setq diff (floor diff)) |
| 505 | (setq emms-lyrics-scroll-timers '()) |
| 506 | (let ((scrolled-lyric (concat lyric " " next-lyric)) |
| 507 | (time 0) |
| 508 | (pos 0)) |
| 509 | (catch 'return |
| 510 | (while (< time diff) |
| 511 | (setq emms-lyrics-scroll-timers |
| 512 | (append emms-lyrics-scroll-timers |
| 513 | (list |
| 514 | (run-at-time time |
| 515 | nil |
| 516 | #'emms-lyrics-display |
| 517 | (if (>= (length lyric) pos) |
| 518 | (substring scrolled-lyric pos) |
| 519 | (throw 'return t)) |
| 520 | nil)))) |
| 521 | (setq time (+ time emms-lyrics-scroll-timer-interval)) |
| 522 | (setq pos (1+ pos)))))) |
| 523 | |
| 524 | |
| 525 | ;;; emms-lyrics-mode |
| 526 | |
| 527 | (defvar emms-lyrics-mode-map |
| 528 | (let ((map (make-sparse-keymap))) |
| 529 | (define-key map "p" #'emms-lyrics-previous-line) |
| 530 | (define-key map "n" #'emms-lyrics-next-line) |
| 531 | (define-key map "i" #'emms-lyrics-insert-time) |
| 532 | map) |
| 533 | "Keymap for `emms-lyrics-mode\\='.") |
| 534 | |
| 535 | (defun emms-lyrics-rem* (x y) |
| 536 | "The remainder of X divided by Y, with the same sign as X." |
| 537 | (let* ((q (floor x y)) |
| 538 | (rem (- x (* y q)))) |
| 539 | (if (= rem 0) |
| 540 | 0 |
| 541 | (if (eq (>= x 0) (>= y 0)) |
| 542 | rem |
| 543 | (- rem y))))) |
| 544 | |
| 545 | (defun emms-lyrics-insert-time () |
| 546 | "Insert lyric time in the form: [01:23.21], then goto the |
| 547 | beginning of next line." |
| 548 | (interactive) |
| 549 | (let* ((total (+ (float-time |
| 550 | (time-subtract (current-time) |
| 551 | emms-lyrics-start-time)) |
| 552 | emms-lyrics-elapsed-time)) |
| 553 | (min (/ (* (floor (/ total 60)) 100) 100)) |
| 554 | (sec (/ (floor (* (emms-lyrics-rem* total 60) 100)) 100.0))) |
| 555 | (insert (emms-replace-regexp-in-string |
| 556 | " " "0" (format "[%2d:%2d]" min sec)))) |
| 557 | (emms-lyrics-next-line)) |
| 558 | |
| 559 | (defun emms-lyrics-next-line () |
| 560 | "Goto the beginning of next line." |
| 561 | (interactive) |
| 562 | (forward-line 1)) |
| 563 | |
| 564 | (defun emms-lyrics-previous-line () |
| 565 | "Goto the beginning of previous line." |
| 566 | (interactive) |
| 567 | (forward-line -1)) |
| 568 | |
| 569 | (define-derived-mode emms-lyrics-mode nil "Emms Lyric" |
| 570 | "Major mode for creating lyric files. |
| 571 | \\{emms-lyrics-mode-map}" |
| 572 | (run-hooks 'emms-lyrics-mode-hook)) |
| 573 | |
| 574 | (provide 'emms-lyrics) |
| 575 | |
| 576 | ;;; emms-lyrics.el ends here |