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+;;; emms-show-all.el --- Detailed track information for Emms.
+
+;; 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