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;;; emms-show-all.el --- Detailed track information for Emms. -*- lexical-binding: t; -*-
;; Copyright (C) 2016 Free Software Foundation, Inc.
;; Author: Yoni Rabkin <yrk@gnu.org>
;; 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; if not, write to the Free Software Foundation,
;; Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
;;; Commentary:
;;;
;;; Shows all of the available information Emms can provide on the
;;; currently playing track. Based on an idea suggested on the
;;; emms-help mailing list by Ivan Truskov.
;;; Code:
(require 'emms)
(require 'emms-tag-editor)
(defvar emms-show-all-buffer-name "Emms Track Information"
"Name of buffer used by `emms-show-all'.")
(defvar emms-show-all-kill-buffer-on-quit-p nil
"If t, kill the show-all buffer when quitting.")
(defvar emms-show-all-track-alist nil
"Declare so as to silence the compiler.")
(defvar emms-show-all-mode-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map text-mode-map)
(define-key map (kbd "q") 'emms-show-all-mode-bury-buffer)
(define-key map (kbd "E") 'emms-show-all-edit-track)
map)
"Keymap for `emms-show-all-mode'.")
(define-derived-mode emms-show-all-mode text-mode "Emms-Show-All"
"Major mode for `emms-show-all'
\\{emms-show-all-mode-map}")
(defun emms-show-all-edit-track ()
"Edit the track being shown."
(interactive)
(let ((track emms-show-all-track-alist))
(emms-show-all-mode-bury-buffer)
(emms-tag-editor-edit-track track)))
(defun emms-show-all-mode-bury-buffer ()
"Bury, and optionally kill the show buffer."
(interactive)
(quit-restore-window
(selected-window)
(when emms-show-all-kill-buffer-on-quit-p 'kill)))
(defun emms-show-all-setup-buffer ()
"Prepare the display buffer."
(let ((buffer (get-buffer-create emms-show-all-buffer-name)))
(with-current-buffer buffer
(when (not (local-variable-p 'emms-show-all-track-alist))
(make-local-variable 'emms-show-all-track-alist))
(setq buffer-read-only t)
(when (not (equal major-mode 'emms-show-all-mode))
(emms-show-all-mode))
(let ((inhibit-read-only t))
(erase-buffer)))
buffer))
(defun emms-show-all-format (track)
"Format information for TRACK."
(let ((s ""))
(dolist (e (mapcar #'(lambda (tag)
(cons
(format "%s" (car tag))
(or (emms-track-get track (car tag)) "")))
emms-tag-editor-tags))
(setq s (concat s (format "%-17s: %s\n" (car e) (cdr e)))))
s))
(defun emms-show-all-insert (track)
"Insert information for TRACK in current buffer."
(let ((type (emms-track-type track)))
(cond ((eq 'file type)
(insert (emms-show-all-format track)))
((eq 'url type)
(insert
(emms-format-url-track-name (emms-track-name track))))
(t (concat (symbol-name type)
": " (emms-track-name track))))))
(defun emms-show-all-track (track)
"Display information for TRACK."
(let ((buffer (emms-show-all-setup-buffer)))
(with-current-buffer buffer
(let ((inhibit-read-only t))
(setq emms-show-all-track-alist track)
(emms-show-all-insert track))
(pop-to-buffer (current-buffer)))))
(defun emms-show-all ()
"Describe the current EMMS track in detail."
(interactive)
(if emms-player-playing-p
(emms-show-all-track
(emms-playlist-current-selected-track))
(message "nothing playing right now")))
(provide 'emms-show-all)
;;; emms-playlist-mode.el ends here
|
