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;; jao-emms-lyrics.el -- simple show lyrics in emms
;; Copyright (C) 2009, 2010 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sat Jul 04, 2009 13:41
;; This file 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.
;; This file 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'emms)
(defvar jao-emms-lyrics-cache-dir "~/.emacs.d/emms-lyrics")
(defun jao-emms-lyrics--filename (artist title)
(expand-file-name (format "%s.lyr" title)
(jao-emms-lyrics--ensure-dir artist)))
(defun jao-emms-lyrics--ensure-dir (artist)
(let ((candidate (expand-file-name artist jao-emms-lyrics-cache-dir)))
(unless (file-directory-p candidate)
(make-directory candidate t))
candidate))
(defun jao-emms-lyrics--get-cached (artist title)
(let ((candidate (jao-emms-lyrics--filename artist title)))
(and (file-exists-p candidate)
(with-current-buffer (find-file-noselect candidate)
(prog1
(buffer-string)
(kill-buffer))))))
(defun jao-emms-lyrics--cache (artist title lyrics)
(with-current-buffer
(find-file-noselect (jao-emms-lyrics--filename artist title))
(delete-region (point-min) (point-max))
(insert lyrics)
(save-buffer)
(kill-buffer)))
(make-variable-buffer-local
(defvar jao-emms-lyrics--path nil))
(defvar jao-emms-lyrics-mode-map)
(setq jao-emms-lyrics-mode-map
(let ((map (make-keymap)))
(suppress-keymap map)
(define-key map [?q] 'bury-buffer)
(define-key map [?g] 'jao-emms-show-lyrics)
(define-key map [?G] 'jao-emms-show-lyrics-force)
(define-key map [?e] 'jao-emms-edit-lyrics)
map))
(defvar jao-emms-font-lock-artist 'bold)
(defvar jao-emms-font-lock-title 'bold)
(defun jao-emms-lyrics-mode ()
(interactive)
(kill-all-local-variables)
(use-local-map jao-emms-lyrics-mode-map)
(setq major-mode 'jao-emms-lyrics-mode)
(setq mode-name "lyrics")
(toggle-read-only 1))
(defun jao-emms-lyrics-buffer ()
(or (get-buffer "*Emms Lyrics*")
(with-current-buffer (get-buffer-create "*Emms Lyrics*")
(jao-emms-lyrics-mode)
(current-buffer))))
(defun jao-emms-lyrics-track-data ()
(let ((track (or (emms-playlist-current-selected-track)
(error "No playing track"))))
(cons (or (emms-track-get track 'info-artist nil)
(error "No artist"))
(or (emms-track-get track 'info-title nil)
(error "No artist")))))
(defun jao-emms-edit-lyrics ()
(interactive)
(unless jao-emms-lyrics--path
(error "No track data available."))
(find-file-other-window jao-emms-lyrics--path))
(defconst jao-emms--wiki-fmt
(concat"http://lyrics.wikia.com/api.php?action=lyrics&fmt=xml&func=getSong"
"&artist=%s&song=%s"))
(defun jao-emms-show-lyrics/wiki ()
(interactive)
(let* ((a/t (jao-emms-lyrics-track-data))
(artist (car a/t))
(title (cdr a/t))
(buffer (jao-emms-lyrics-buffer))
(url (format jao-emms--wiki-fmt
(url-hexify-string artist)
(url-hexify-string title)))
(url-request-method "GET")
(data-buffer (url-retrieve-synchronously url))
(inhibit-read-only t))
(set-buffer data-buffer)
;; (unless (re-search-forward "<pre>" nil t)
;; (error "Lyrics not found"))
(let ((begin (point)))
;; (unless (re-search-forward "</pre>" nil t)
;; (error "Lyrics not found"))
(copy-to-buffer buffer begin (match-beginning 0)))
(with-current-buffer buffer
(goto-char (point-min))
(insert (format "♪ %s - %s\n" artist title)))
(pop-to-buffer buffer)))
(defvar jao-emms-show-lyrics/script
(expand-file-name "lyricwiki.rb" (file-name-directory load-file-name)))
(defun jao-emms-lyrics--download (artist title)
(message "Retrieving lyrics...")
(prog1
(shell-command-to-string (format "%s \"%s\" \"%s\""
jao-emms-show-lyrics/script
artist title))
(message nil)))
(defun jao-emms-show-lyrics (&optional force)
(interactive "P")
(let* ((a/t (jao-emms-lyrics-track-data))
(artist (or (car a/t) ""))
(title (or (cdr a/t) ""))
(buffer (jao-emms-lyrics-buffer))
(cached (and (not force) (jao-emms-lyrics--get-cached artist title)))
(cached (and (not (zerop (length cached))) cached))
(lyrics (or cached (jao-emms-lyrics--download artist title)))
(inhibit-read-only t))
(with-current-buffer buffer
(delete-region (point-min) (point-max))
(insert (format "♪ %s - %s\n\n"
(propertize artist 'face jao-emms-font-lock-artist)
(propertize title 'face jao-emms-font-lock-title)))
(when lyrics
(insert lyrics)
(goto-char (point-min))
(when (not cached)
(save-excursion
(while (search-forward "
" nil t)
(replace-match "" nil t)))))
(when (and lyrics (not cached))
(jao-emms-lyrics--cache artist title lyrics))
(setq jao-emms-lyrics--path (jao-emms-lyrics--filename artist title)))
(pop-to-buffer buffer)))
(defun jao-emms-show-lyrics-force ()
(interactive)
(jao-emms-show-lyrics t))
(provide 'jao-emms-lyrics)
;;; jao-emms-lyrics.el ends here
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