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;;; helm-emms.el --- Emms for Helm. -*- lexical-binding: t -*-
;; Copyright (C) 2012 ~ 2014 Thierry Volpiatto <thierry.volpiatto@gmail.com>
;; This program 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 program 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 'cl-lib)
(require 'helm)
(declare-function emms-streams "ext:emms-streams")
(declare-function emms-stream-delete-bookmark "ext:emms-streams")
(declare-function emms-stream-add-bookmark "ext:emms-streams" (name url fd type))
(declare-function emms-stream-save-bookmarks-file "ext:emms-streams")
(declare-function emms-stream-quit "ext:emms-streams")
(declare-function with-current-emms-playlist "ext:emms" (&rest body))
(declare-function emms-playlist-tracks-in-region "ext:emms" (beg end))
(declare-function emms-playlist-first "ext:emms")
(declare-function emms-playlist-mode-play-smart "ext:emms-playlist-mode")
(defgroup helm-emms nil
"Predefined configurations for `helm.el'."
:group 'helm)
(defface helm-emms-playlist
'((t (:foreground "Springgreen4" :underline t)))
"Face used for tracks in current emms playlist."
:group 'helm-emms)
(defvar emms-stream-list)
(defun helm-emms-stream-edit-bookmark (elm)
"Change the information of current emms-stream bookmark from helm."
(let* ((cur-buf helm-current-buffer)
(bookmark (assoc elm emms-stream-list))
(name (read-from-minibuffer "Description: "
(nth 0 bookmark)))
(url (read-from-minibuffer "URL: "
(nth 1 bookmark)))
(fd (read-from-minibuffer "Feed Descriptor: "
(int-to-string (nth 2 bookmark))))
(type (read-from-minibuffer "Type (url, streamlist, or lastfm): "
(format "%s" (car (last bookmark))))))
(save-window-excursion
(emms-streams)
(when (re-search-forward (concat "^" name) nil t)
(forward-line 0)
(emms-stream-delete-bookmark)
(emms-stream-add-bookmark name url (string-to-number fd) type)
(emms-stream-save-bookmarks-file)
(emms-stream-quit)
(switch-to-buffer cur-buf)))))
(defun helm-emms-stream-delete-bookmark (_candidate)
"Delete emms-streams bookmarks from helm."
(let* ((cands (helm-marked-candidates))
(bmks (cl-loop for bm in cands collect
(car (assoc bm emms-stream-list))))
(bmk-reg (mapconcat 'regexp-quote bmks "\\|^")))
(when (y-or-n-p (format "Really delete radios\n -%s: ? "
(mapconcat 'identity bmks "\n -")))
(save-window-excursion
(emms-streams)
(goto-char (point-min))
(cl-loop while (re-search-forward bmk-reg nil t)
do (progn (forward-line 0)
(emms-stream-delete-bookmark))
finally do (progn
(emms-stream-save-bookmarks-file)
(emms-stream-quit)))))))
(defvar helm-source-emms-streams
'((name . "Emms Streams")
(init . (lambda ()
(emms-stream-init)))
(candidates . (lambda ()
(mapcar 'car emms-stream-list)))
(action . (("Play" . (lambda (elm)
(let* ((stream (assoc elm emms-stream-list))
(fn (intern (concat "emms-play-" (symbol-name (car (last stream))))))
(url (cl-second stream)))
(funcall fn url))))
("Delete" . helm-emms-stream-delete-bookmark)
("Edit" . helm-emms-stream-edit-bookmark)))
(filtered-candidate-transformer . helm-adaptive-sort)))
;; Don't forget to set `emms-source-file-default-directory'
(defvar helm-source-emms-dired
'((name . "Music Directory")
(candidates . (lambda ()
(cddr (directory-files emms-source-file-default-directory))))
(action .
(("Play Directory" . (lambda (item)
(emms-play-directory
(expand-file-name
item
emms-source-file-default-directory))))
("Open dired in file's directory" . (lambda (item)
(helm-open-dired
(expand-file-name
item
emms-source-file-default-directory))))))
(filtered-candidate-transformer . helm-adaptive-sort)))
(defvar helm-emms-current-playlist nil)
(defun helm-emms-files-modifier (candidates _source)
(cl-loop for i in candidates
if (member (cdr i) helm-emms-current-playlist)
collect (cons (propertize (car i)
'face 'helm-emms-playlist)
(cdr i))
into lis
else collect i into lis
finally return (reverse lis)))
(defun helm-emms-play-current-playlist ()
"Play current playlist."
(emms-playlist-first)
(emms-playlist-mode-play-smart))
(defvar helm-source-emms-files
'((name . "Emms files")
(init . (lambda ()
(setq helm-emms-current-playlist
(with-current-emms-playlist
(cl-loop with cur-list = (emms-playlist-tracks-in-region
(point-min) (point-max))
for i in cur-list
for name = (assoc-default 'name i)
when name
collect name)))))
(candidates . (lambda ()
(cl-loop for v being the hash-values in emms-cache-db
for name = (assoc-default 'name v)
for artist = (or (assoc-default 'info-artist v) "unknown")
for genre = (or (assoc-default 'info-genre v) "unknown")
for tracknum = (or (assoc-default 'info-tracknumber v) "unknown")
for song = (or (assoc-default 'info-title v) "unknown")
for info = (concat artist " - " genre " - " tracknum ": " song)
unless (string-match "^\\(http\\|mms\\):" name)
collect (cons info name))))
(filtered-candidate-transformer . helm-emms-files-modifier)
(candidate-number-limit . 9999)
(action . (("Play file" . emms-play-file)
("Add to Playlist and play (C-u clear current)"
. (lambda (candidate)
(with-current-emms-playlist
(when helm-current-prefix-arg
(emms-playlist-current-clear))
(emms-playlist-new)
(mapc 'emms-add-playlist-file (helm-marked-candidates))
(unless emms-player-playing-p
(helm-emms-play-current-playlist)))))))))
;;;###autoload
(defun helm-emms ()
"Preconfigured `helm' for emms sources."
(interactive)
(helm :sources '(helm-source-emms-streams
helm-source-emms-files
helm-source-emms-dired)
:buffer "*Helm Emms*"))
(provide 'helm-emms)
;; Local Variables:
;; byte-compile-warnings: (not cl-functions obsolete)
;; coding: utf-8
;; indent-tabs-mode: nil
;; End:
;;; helm-emms ends here
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