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2631 lines
109 KiB
EmacsLisp
2631 lines
109 KiB
EmacsLisp
;;; mpc.el --- A client for the Music Player Daemon -*- coding: utf-8; lexical-binding: t -*-
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;; Copyright (C) 2006-2011 Free Software Foundation, Inc.
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;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
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;; Keywords: multimedia
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This is an Emacs front end to the Music Player Daemon.
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;; It mostly provides a browser inspired from Rhythmbox for your music
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;; collection and also allows you to play the music you select. The basic
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;; interface is somewhat unusual in that it does not focus on the
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;; playlist as much as on the browser.
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;; I play albums rather than songs and thus don't have much need for
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;; playlists, and it shows. Playlist support exists, but is still limited.
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;; Bugs:
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;; - when reaching end/start of song while ffwd/rewind, it may get wedged,
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;; signal an error, ... or when mpc-next/prev is called while ffwd/rewind.
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;; - MPD errors are not reported to the user.
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;; Todo:
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;; - add bindings/buttons/menuentries for the various commands.
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;; - mpc-undo
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;; - visual feedback for drag'n'drop
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;; - display/set `repeat' and `random' state (and maybe also `crossfade').
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;; - allow multiple *mpc* sessions in the same Emacs to control different mpds.
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;; - look for .folder.png (freedesktop) or folder.jpg (XP) as well.
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;; - fetch album covers and lyrics from the web?
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;; - improve MPC-Status: better volume control, add a way to show/hide the
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;; rest, plus add the buttons currently in the toolbar.
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;; - improve mpc-songs-mode's header-line column-headings so they can be
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;; dragged to resize.
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;; - allow selecting several entries by drag-mouse.
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;; - poll less often
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;; - use the `idle' command
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;; - do the time-ticking locally (and sync every once in a while)
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;; - look at the end of play time to make sure we notice the end
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;; as soon as possible
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;; - better volume widget.
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;; - add synthesized tags.
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;; e.g. pseudo-artist = artist + composer + performer.
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;; e.g. pseudo-performer = performer or artist
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;; e.g. rewrite artist "Foo bar & baz" to "Foo bar".
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;; e.g. filename regexp -> compilation flag
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;; - window/buffer management.
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;; - menubar, tooltips, ...
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;; - add mpc-describe-song, mpc-describe-album, ...
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;; - add import/export commands (especially export to an MP3 player).
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;; - add a real notion of album (as opposed to just album-name):
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;; if all songs with same album-name have same artist -> it's an album
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;; else it's either several albums or a compilation album (or both),
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;; in which case we could use heuristics or user provided info:
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;; - if the user followed the 1-album = 1-dir idea, then we can group songs
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;; by their directory to create albums.
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;; - if a `compilation' flag is available, and if <=1 of the songs have it
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;; set, then we can group songs by their artist to create albums.
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;; - if two songs have the same track-nb and disk-nb, they're not in the
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;; same album. So from the set of songs with identical album names, we
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;; can get a lower bound on the number of albums involved, and then see
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;; which of those may be non-compilations, etc...
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;; - use a special directory name for compilations.
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;; - ask the web ;-)
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;;; Code:
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;; Prefixes used in this code:
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;; mpc-proc : management of connection (in/out formatting, ...)
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;; mpc-status : auto-updated status info
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;; mpc-volume : stuff handling the volume widget
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;; mpc-cmd : mpdlib abstraction
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;; UI-commands : mpc-
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;; internal : mpc--
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(eval-when-compile (require 'cl))
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(defgroup mpc ()
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"A Client for the Music Player Daemon."
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:prefix "mpc-"
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:group 'multimedia
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:group 'applications)
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(defcustom mpc-browser-tags '(Genre Artist|Composer|Performer
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Album|Playlist)
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"Tags for which a browser buffer should be created by default."
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;; FIXME: provide a list of tags, for completion.
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:type '(repeat symbol))
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;;; Misc utils ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun mpc-assq-all (key alist)
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(let ((res ()) val)
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(dolist (elem alist)
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(if (and (eq (car elem) key)
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(not (member (setq val (cdr elem)) res)))
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(push val res)))
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(nreverse res)))
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(defun mpc-union (&rest lists)
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(let ((res (nreverse (pop lists))))
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(dolist (list lists)
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(let ((seen res)) ;Don't remove duplicates within each list.
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(dolist (elem list)
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(unless (member elem seen) (push elem res)))))
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(nreverse res)))
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(defun mpc-intersection (l1 l2 &optional selectfun)
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"Return L1 after removing all elements not found in L2.
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If SELECTFUN is non-nil, elements aren't compared directly, but instead
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they are passed through SELECTFUN before comparison."
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(let ((res ()))
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(if selectfun (setq l2 (mapcar selectfun l2)))
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(dolist (elem l1)
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(when (member (if selectfun (funcall selectfun elem) elem) l2)
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(push elem res)))
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(nreverse res)))
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(defun mpc-event-set-point (event)
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(condition-case nil (posn-set-point (event-end event))
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(error (condition-case nil (mouse-set-point event)
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(error nil)))))
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(defun mpc-compare-strings (str1 str2 &optional ignore-case)
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"Compare strings STR1 and STR2.
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Contrary to `compare-strings', this tries to get numbers sorted
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numerically rather than lexicographically."
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(let ((res (compare-strings str1 nil nil str2 nil nil ignore-case)))
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(if (not (integerp res)) res
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(let ((index (1- (abs res))))
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(if (or (>= index (length str1)) (>= index (length str2)))
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res
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(let ((digit1 (memq (aref str1 index)
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'(?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9)))
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(digit2 (memq (aref str2 index)
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'(?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9))))
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(if digit1
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(if digit2
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(let ((num1 (progn (string-match "[0-9]+" str1 index)
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(match-string 0 str1)))
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(num2 (progn (string-match "[0-9]+" str2 index)
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(match-string 0 str2))))
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(cond
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;; Here we presume that leading zeroes are only used
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;; for same-length numbers. So we'll incorrectly
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;; consider that "000" comes after "01", but I don't
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;; think it matters.
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((< (length num1) (length num2)) (- (abs res)))
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((> (length num1) (length num2)) (abs res))
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((< (string-to-number num1) (string-to-number num2))
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(- (abs res)))
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(t (abs res))))
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;; "1a" comes before "10", but "0" comes before "a".
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(if (and (not (zerop index))
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(memq (aref str1 (1- index))
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'(?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9)))
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(abs res)
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(- (abs res))))
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(if digit2
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;; "1a" comes before "10", but "0" comes before "a".
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(if (and (not (zerop index))
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(memq (aref str1 (1- index))
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'(?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9)))
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(- (abs res))
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(abs res))
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res))))))))
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(defun mpc-string-prefix-p (str1 str2)
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;; FIXME: copied from pcvs-util.el.
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"Tell whether STR1 is a prefix of STR2."
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(eq t (compare-strings str2 nil (length str1) str1 nil nil)))
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;; This can speed up mpc--song-search significantly. The table may grow
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;; very large, tho. It's only bounded by the fact that it gets flushed
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;; whenever the connection is established; which seems to work OK thanks
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;; to the fact that MPD tends to disconnect fairly often, although our
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;; constant polling often prevents disconnection.
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(defvar mpc--find-memoize (make-hash-table :test 'equal)) ;; :weakness t
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(defvar mpc-tag nil) (make-variable-buffer-local 'mpc-tag)
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;;; Support for the actual connection and MPD command execution ;;;;;;;;;;;;
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(defcustom mpc-host
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(concat (or (getenv "MPD_HOST") "localhost")
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(if (getenv "MPD_PORT") (concat ":" (getenv "MPD_PORT"))))
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"Host (and port) where the Music Player Daemon is running.
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The format is \"HOST\" or \"HOST:PORT\" where PORT defaults to 6600
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and HOST defaults to localhost."
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:type 'string)
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(defvar mpc-proc nil)
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(defconst mpc--proc-end-re "^\\(?:OK\\(?: MPD .*\\)?\\|ACK \\(.*\\)\\)\n")
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(put 'mpc-proc-error 'error-conditions '(mpc-proc-error error))
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(put 'mpc-proc-error 'error-message "MPD error")
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(defun mpc--debug (format &rest args)
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(if (get-buffer "*MPC-debug*")
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(with-current-buffer "*MPC-debug*"
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(goto-char (point-max))
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(insert-before-markers ;So it scrolls.
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(replace-regexp-in-string "\n" "\n "
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(apply 'format format args))
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"\n"))))
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(defun mpc--proc-filter (proc string)
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(mpc--debug "Receive \"%s\"" string)
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(with-current-buffer (process-buffer proc)
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(if (process-get proc 'ready)
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(if nil ;; (string-match "\\`\\(OK\n\\)+\\'" string)
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;; I haven't figured out yet why I get those extraneous OKs,
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;; so I'll just ignore them for now.
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nil
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(delete-process proc)
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(set-process-buffer proc nil)
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(pop-to-buffer (clone-buffer))
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(error "MPD output while idle!?"))
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(save-excursion
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(let ((start (or (marker-position (process-mark proc)) (point-min))))
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(goto-char start)
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(insert string)
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(move-marker (process-mark proc) (point))
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(beginning-of-line)
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(when (and (< start (point))
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(re-search-backward mpc--proc-end-re start t))
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(process-put proc 'ready t)
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(unless (eq (match-end 0) (point-max))
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(error "Unexpected trailing text"))
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(let ((error-text (match-string 1)))
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(delete-region (point) (point-max))
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(let ((callback (process-get proc 'callback)))
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(process-put proc 'callback nil)
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(if error-text
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(process-put proc 'mpc-proc-error error-text))
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(funcall callback)))))))))
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(defun mpc--proc-connect (host)
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(mpc--debug "Connecting to %s..." host)
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(with-current-buffer (get-buffer-create (format " *mpc-%s*" host))
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;; (pop-to-buffer (current-buffer))
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(let (proc)
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(while (and (setq proc (get-buffer-process (current-buffer)))
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(progn ;; (debug)
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(delete-process proc)))))
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(erase-buffer)
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(let ((port 6600))
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(when (string-match ":[^.]+\\'" host)
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(setq port (substring host (1+ (match-beginning 0))))
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(setq host (substring host 0 (match-beginning 0)))
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(unless (string-match "[^[:digit:]]" port)
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(setq port (string-to-number port))))
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(let* ((coding-system-for-read 'utf-8-unix)
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(coding-system-for-write 'utf-8-unix)
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(proc (open-network-stream "MPC" (current-buffer) host port)))
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(when (processp mpc-proc)
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;; Inherit the properties of the previous connection.
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(let ((plist (process-plist mpc-proc)))
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(while plist (process-put proc (pop plist) (pop plist)))))
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(mpc-proc-buffer proc 'mpd-commands (current-buffer))
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(process-put proc 'callback 'ignore)
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(process-put proc 'ready nil)
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(clrhash mpc--find-memoize)
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(set-process-filter proc 'mpc--proc-filter)
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(set-process-sentinel proc 'ignore)
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(set-process-query-on-exit-flag proc nil)
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;; This may be called within a process filter ;-(
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(with-local-quit (mpc-proc-sync proc))
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proc))))
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(defun mpc--proc-quote-string (s)
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(if (numberp s) (number-to-string s)
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(setq s (replace-regexp-in-string "[\"\\]" "\\\\\\&" s))
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(if (string-match " " s) (concat "\"" s "\"") s)))
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(defconst mpc--proc-alist-to-alists-starters '(file directory))
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(defun mpc--proc-alist-to-alists (alist)
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(assert (or (null alist)
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(memq (caar alist) mpc--proc-alist-to-alists-starters)))
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(let ((starter (caar alist))
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(alists ())
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tmp)
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(dolist (pair alist)
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(when (eq (car pair) starter)
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(if tmp (push (nreverse tmp) alists))
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(setq tmp ()))
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(push pair tmp))
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(if tmp (push (nreverse tmp) alists))
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(nreverse alists)))
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(defun mpc-proc ()
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(or (and mpc-proc
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(buffer-live-p (process-buffer mpc-proc))
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(not (memq (process-status mpc-proc) '(closed)))
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mpc-proc)
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(setq mpc-proc (mpc--proc-connect mpc-host))))
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(defun mpc-proc-check (proc)
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(let ((error-text (process-get proc 'mpc-proc-error)))
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(when error-text
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(process-put proc 'mpc-proc-error nil)
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(signal 'mpc-proc-error error-text))))
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(defun mpc-proc-sync (&optional proc)
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"Wait for MPC process until it is idle again.
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Return the buffer in which the process is/was running."
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(unless proc (setq proc (mpc-proc)))
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(unwind-protect
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(progn
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(while (and (not (process-get proc 'ready))
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(accept-process-output proc)))
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(mpc-proc-check proc)
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(if (process-get proc 'ready) (process-buffer proc)
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(error "No response from MPD")))
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(unless (process-get proc 'ready)
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;; (debug)
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(message "Killing hung process")
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(delete-process proc))))
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(defun mpc-proc-cmd (cmd &optional callback)
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"Send command CMD to the MPD server.
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If CALLBACK is nil, wait for the command to finish before returning,
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otherwise return immediately and call CALLBACK with no argument
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when the command terminates.
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CMD can be a string which is passed as-is to MPD or a list of strings
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which will be concatenated with proper quoting before passing them to MPD."
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(let ((proc (mpc-proc)))
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(if (and callback (not (process-get proc 'ready)))
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(let ((old (process-get proc 'callback)))
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(process-put proc 'callback
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(lambda ()
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(funcall old)
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(mpc-proc-cmd cmd callback))))
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;; Wait for any pending async command to terminate.
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(mpc-proc-sync proc)
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(process-put proc 'ready nil)
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(with-current-buffer (process-buffer proc)
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(erase-buffer)
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(mpc--debug "Send \"%s\"" cmd)
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(process-send-string
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proc (concat (if (stringp cmd) cmd
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(mapconcat 'mpc--proc-quote-string cmd " "))
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"\n")))
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(if callback
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;; (let ((buf (current-buffer)))
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(process-put proc 'callback
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callback
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;; (lambda ()
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;; (funcall callback
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;; (prog1 (current-buffer)
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;; (set-buffer buf)))))
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)
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;; If `callback' is nil, we're executing synchronously.
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(process-put proc 'callback 'ignore)
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;; This returns the process's buffer.
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(mpc-proc-sync proc)))))
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;; This function doesn't exist in Emacs-21.
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;; (put 'mpc-proc-cmd-list 'byte-optimizer 'byte-optimize-pure-func)
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(defun mpc-proc-cmd-list (cmds)
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(concat "command_list_begin\n"
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(mapconcat (lambda (cmd)
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(if (stringp cmd) cmd
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(mapconcat 'mpc--proc-quote-string cmd " ")))
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cmds
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"\n")
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"\ncommand_list_end"))
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(defun mpc-proc-cmd-list-ok ()
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;; To implement this, we'll need to tweak the process filter since we'd
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;; then sometimes get "trailing" text after "OK\n".
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(error "Not implemented yet"))
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(defun mpc-proc-buf-to-alist (&optional buf)
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(with-current-buffer (or buf (current-buffer))
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(let ((res ()))
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(goto-char (point-min))
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(while (re-search-forward "^\\([^:]+\\): \\(.*\\)\n" nil t)
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(push (cons (intern (match-string 1)) (match-string 2)) res))
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(nreverse res))))
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(defun mpc-proc-buf-to-alists (buf)
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(mpc--proc-alist-to-alists (mpc-proc-buf-to-alist buf)))
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(defun mpc-proc-cmd-to-alist (cmd &optional callback)
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(if callback
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(let ((buf (current-buffer)))
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(mpc-proc-cmd cmd (lambda ()
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(funcall callback (prog1 (mpc-proc-buf-to-alist
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(current-buffer))
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(set-buffer buf))))))
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;; (lexical-let ((res nil))
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;; (mpc-proc-cmd-to-alist cmd (lambda (alist) (setq res alist)))
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;; (mpc-proc-sync)
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;; res)
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(mpc-proc-buf-to-alist (mpc-proc-cmd cmd))))
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(defun mpc-proc-tag-string-to-sym (tag)
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(intern (capitalize tag)))
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(defun mpc-proc-buffer (proc use &optional buffer)
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(let* ((bufs (process-get proc 'buffers))
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(buf (cdr (assoc use bufs))))
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(cond
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((and buffer (buffer-live-p buf) (not (eq buffer buf)))
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(error "Duplicate MPC buffer for %s" use))
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(buffer
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(if buf
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(setcdr (assoc use bufs) buffer)
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(process-put proc 'buffers (cons (cons use buffer) bufs))))
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(t buf))))
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;;; Support for regularly updated current status information ;;;;;;;;;;;;;;;
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;; Exported elements:
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;; `mpc-status' holds the uptodate data.
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;; `mpc-status-callbacks' holds the registered callback functions.
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;; `mpc-status-refresh' forces a refresh of the data.
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;; `mpc-status-stop' stops the automatic updating.
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|
(defvar mpc-status nil)
|
|
(defvar mpc-status-callbacks
|
|
'((state . mpc--status-timers-refresh)
|
|
;; (song . mpc--queue-refresh)
|
|
;; (state . mpc--queue-refresh) ;To detect the end of the last song.
|
|
(state . mpc--faster-toggle-refresh) ;Only ffwd/rewind while play/pause.
|
|
(volume . mpc-volume-refresh)
|
|
(file . mpc-songpointer-refresh)
|
|
;; The song pointer may need updating even if the file doesn't change,
|
|
;; if the same song appears multiple times in a row.
|
|
(song . mpc-songpointer-refresh)
|
|
(updating_db . mpc-updated-db)
|
|
(updating_db . mpc--status-timers-refresh)
|
|
(t . mpc-current-refresh))
|
|
"Alist associating properties to the functions that care about them.
|
|
Each entry has the form (PROP . FUN) where PROP can be t to mean
|
|
to call FUN for any change whatsoever.")
|
|
|
|
(defun mpc--status-callback ()
|
|
(let ((old-status mpc-status))
|
|
;; Update the alist.
|
|
(setq mpc-status (mpc-proc-buf-to-alist))
|
|
(assert mpc-status)
|
|
(unless (equal old-status mpc-status)
|
|
;; Run the relevant refresher functions.
|
|
(dolist (pair mpc-status-callbacks)
|
|
(when (or (eq t (car pair))
|
|
(not (equal (cdr (assq (car pair) old-status))
|
|
(cdr (assq (car pair) mpc-status)))))
|
|
(funcall (cdr pair)))))))
|
|
|
|
(defvar mpc--status-timer nil)
|
|
(defun mpc--status-timer-start ()
|
|
(add-hook 'pre-command-hook 'mpc--status-timer-stop)
|
|
(unless mpc--status-timer
|
|
(setq mpc--status-timer (run-with-timer 1 1 'mpc--status-timer-run))))
|
|
(defun mpc--status-timer-stop ()
|
|
(when mpc--status-timer
|
|
(cancel-timer mpc--status-timer)
|
|
(setq mpc--status-timer nil)))
|
|
(defun mpc--status-timer-run ()
|
|
(when (process-get (mpc-proc) 'ready)
|
|
(condition-case err
|
|
(with-local-quit (mpc-status-refresh))
|
|
(error (message "MPC: %s" err)))))
|
|
|
|
(defvar mpc--status-idle-timer nil)
|
|
(defun mpc--status-idle-timer-start ()
|
|
(when mpc--status-idle-timer
|
|
;; Turn it off even if we'll start it again, in case it changes the delay.
|
|
(cancel-timer mpc--status-idle-timer))
|
|
(setq mpc--status-idle-timer
|
|
(run-with-idle-timer 1 t 'mpc--status-idle-timer-run))
|
|
;; Typically, the idle timer is started from the mpc--status-callback,
|
|
;; which is run asynchronously while we're already idle (we typically
|
|
;; just started idling), so the timer itself will only be run the next
|
|
;; time we idle :-(
|
|
;; To work around that, we immediately start the repeat timer.
|
|
(mpc--status-timer-start))
|
|
(defun mpc--status-idle-timer-stop (&optional really)
|
|
(when mpc--status-idle-timer
|
|
;; Turn it off even if we'll start it again, in case it changes the delay.
|
|
(cancel-timer mpc--status-idle-timer))
|
|
(setq mpc--status-idle-timer
|
|
(unless really
|
|
;; We don't completely stop the timer, so that if some other MPD
|
|
;; client starts playback, we may get a chance to notice it.
|
|
(run-with-idle-timer 10 t 'mpc--status-idle-timer-run))))
|
|
(defun mpc--status-idle-timer-run ()
|
|
(when (process-get (mpc-proc) 'ready)
|
|
(condition-case err
|
|
(with-local-quit (mpc-status-refresh))
|
|
(error (message "MPC: %s" err))))
|
|
(mpc--status-timer-start))
|
|
|
|
(defun mpc--status-timers-refresh ()
|
|
"Start/stop the timers according to whether a song is playing."
|
|
(if (or (member (cdr (assq 'state mpc-status)) '("play"))
|
|
(cdr (assq 'updating_db mpc-status)))
|
|
(mpc--status-idle-timer-start)
|
|
(mpc--status-idle-timer-stop)
|
|
(mpc--status-timer-stop)))
|
|
|
|
(defun mpc-status-refresh (&optional callback)
|
|
"Refresh `mpc-status'."
|
|
(let ((cb callback))
|
|
(mpc-proc-cmd (mpc-proc-cmd-list '("status" "currentsong"))
|
|
(lambda ()
|
|
(mpc--status-callback)
|
|
(if cb (funcall cb))))))
|
|
|
|
(defun mpc-status-stop ()
|
|
"Stop the autorefresh of `mpc-status'.
|
|
This is normally used only when quitting MPC.
|
|
Any call to `mpc-status-refresh' may cause it to be restarted."
|
|
(setq mpc-status nil)
|
|
(mpc--status-idle-timer-stop 'really)
|
|
(mpc--status-timer-stop))
|
|
|
|
;;; A thin layer above the raw protocol commands ;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
;; (defvar mpc-queue nil)
|
|
;; (defvar mpc-queue-back nil)
|
|
|
|
;; (defun mpc--queue-head ()
|
|
;; (if (stringp (car mpc-queue)) (car mpc-queue) (cadar mpc-queue)))
|
|
;; (defun mpc--queue-pop ()
|
|
;; (when mpc-queue ;Can be nil if out of sync.
|
|
;; (let ((song (car mpc-queue)))
|
|
;; (assert song)
|
|
;; (push (if (and (consp song) (cddr song))
|
|
;; ;; The queue's first element is itself a list of
|
|
;; ;; songs, where the first element isn't itself a song
|
|
;; ;; but a description of the list.
|
|
;; (prog1 (cadr song) (setcdr song (cddr song)))
|
|
;; (prog1 (if (consp song) (cadr song) song)
|
|
;; (setq mpc-queue (cdr mpc-queue))))
|
|
;; mpc-queue-back)
|
|
;; (assert (stringp (car mpc-queue-back))))))
|
|
|
|
;; (defun mpc--queue-refresh ()
|
|
;; ;; Maintain the queue.
|
|
;; (mpc--debug "mpc--queue-refresh")
|
|
;; (let ((pos (cdr (or (assq 'Pos mpc-status) (assq 'song mpc-status)))))
|
|
;; (cond
|
|
;; ((null pos)
|
|
;; (mpc-cmd-clear 'ignore))
|
|
;; ((or (not (member pos '("0" nil)))
|
|
;; ;; There's only one song in the playlist and we've stopped.
|
|
;; ;; Maybe it's because of some external client that set the
|
|
;; ;; playlist like that and/or manually stopped the playback, but
|
|
;; ;; it's more likely that we've simply reached the end of
|
|
;; ;; the song. So remove it.
|
|
;; (and (equal (assq 'state mpc-status) "stop")
|
|
;; (equal (assq 'playlistlength mpc-status) "1")
|
|
;; (setq pos "1")))
|
|
;; ;; We're not playing the first song in the queue/playlist any
|
|
;; ;; more, so update the queue.
|
|
;; (dotimes (i (string-to-number pos)) (mpc--queue-pop))
|
|
;; (mpc-proc-cmd (mpc-proc-cmd-list
|
|
;; (make-list (string-to-number pos) "delete 0"))
|
|
;; 'ignore)
|
|
;; (if (not (equal (cdr (assq 'file mpc-status))
|
|
;; (mpc--queue-head)))
|
|
;; (message "MPC's queue is out of sync"))))))
|
|
|
|
(defvar mpc--find-memoize-union-tags nil)
|
|
|
|
(defun mpc-cmd-flush (tag value)
|
|
(puthash (cons tag value) nil mpc--find-memoize)
|
|
(dolist (uniontag mpc--find-memoize-union-tags)
|
|
(if (member (symbol-name tag) (split-string (symbol-name uniontag) "|"))
|
|
(puthash (cons uniontag value) nil mpc--find-memoize))))
|
|
|
|
|
|
(defun mpc-cmd-special-tag-p (tag)
|
|
(or (memq tag '(Playlist Search Directory))
|
|
(string-match "|" (symbol-name tag))))
|
|
|
|
(defun mpc-cmd-find (tag value)
|
|
"Return a list of all songs whose tag TAG has value VALUE.
|
|
The songs are returned as alists."
|
|
(or (gethash (cons tag value) mpc--find-memoize)
|
|
(puthash (cons tag value)
|
|
(cond
|
|
((eq tag 'Playlist)
|
|
;; Special case for pseudo-tag playlist.
|
|
(let ((l (condition-case nil
|
|
(mpc-proc-buf-to-alists
|
|
(mpc-proc-cmd (list "listplaylistinfo" value)))
|
|
(mpc-proc-error
|
|
;; "[50@0] {listplaylistinfo} No such playlist"
|
|
nil)))
|
|
(i 0))
|
|
(mapcar (lambda (s)
|
|
(prog1 (cons (cons 'Pos (number-to-string i)) s)
|
|
(incf i)))
|
|
l)))
|
|
((eq tag 'Search)
|
|
(mpc-proc-buf-to-alists
|
|
(mpc-proc-cmd (list "search" "any" value))))
|
|
((eq tag 'Directory)
|
|
(let ((pairs
|
|
(mpc-proc-buf-to-alist
|
|
(mpc-proc-cmd (list "listallinfo" value)))))
|
|
(mpc--proc-alist-to-alists
|
|
;; Strip away the `directory' entries.
|
|
(delq nil (mapcar (lambda (pair)
|
|
(if (eq (car pair) 'directory)
|
|
nil pair))
|
|
pairs)))))
|
|
((string-match "|" (symbol-name tag))
|
|
(add-to-list 'mpc--find-memoize-union-tags tag)
|
|
(let ((tag1 (intern (substring (symbol-name tag)
|
|
0 (match-beginning 0))))
|
|
(tag2 (intern (substring (symbol-name tag)
|
|
(match-end 0)))))
|
|
(mpc-union (mpc-cmd-find tag1 value)
|
|
(mpc-cmd-find tag2 value))))
|
|
(t
|
|
(condition-case nil
|
|
(mpc-proc-buf-to-alists
|
|
(mpc-proc-cmd (list "find" (symbol-name tag) value)))
|
|
(mpc-proc-error
|
|
;; If `tag' is not one of the expected tags, MPD burps
|
|
;; about not having the relevant table. FIXME: check
|
|
;; the kind of error.
|
|
(error "Unknown tag %s" tag)
|
|
(let ((res ()))
|
|
(setq value (cons tag value))
|
|
(dolist (song (mpc-proc-buf-to-alists
|
|
(mpc-proc-cmd "listallinfo")))
|
|
(if (member value song) (push song res)))
|
|
res)))))
|
|
mpc--find-memoize)))
|
|
|
|
(defun mpc-cmd-list (tag &optional other-tag value)
|
|
;; FIXME: we could also provide a `mpc-cmd-list' alternative which
|
|
;; doesn't take an "other-tag value" constraint but a "song-list" instead.
|
|
;; That might be more efficient in some cases.
|
|
(cond
|
|
((eq tag 'Playlist)
|
|
(let ((pls (mpc-assq-all 'playlist (mpc-proc-cmd-to-alist "lsinfo"))))
|
|
(when other-tag
|
|
(dolist (pl (prog1 pls (setq pls nil)))
|
|
(let ((plsongs (mpc-cmd-find 'Playlist pl)))
|
|
(if (not (mpc-cmd-special-tag-p other-tag))
|
|
(when (member (cons other-tag value)
|
|
(apply 'append plsongs))
|
|
(push pl pls))
|
|
;; Problem N°2: we compute the intersection whereas all
|
|
;; we care about is whether it's empty. So we could
|
|
;; speed this up significantly.
|
|
;; We only compare file names, because the full song-entries
|
|
;; are slightly different (the ones in plsongs include
|
|
;; position and id info specific to the playlist), and it's
|
|
;; good enough because this is only used with "search", which
|
|
;; doesn't pay attention to playlists and URLs anyway.
|
|
(let* ((osongs (mpc-cmd-find other-tag value))
|
|
(ofiles (mpc-assq-all 'file (apply 'append osongs)))
|
|
(plfiles (mpc-assq-all 'file (apply 'append plsongs))))
|
|
(when (mpc-intersection plfiles ofiles)
|
|
(push pl pls)))))))
|
|
pls))
|
|
|
|
((eq tag 'Directory)
|
|
(if (null other-tag)
|
|
(apply 'nconc
|
|
(mpc-assq-all 'directory
|
|
(mpc-proc-buf-to-alist
|
|
(mpc-proc-cmd "lsinfo")))
|
|
(mapcar (lambda (dir)
|
|
(let ((shortdir
|
|
(if (get-text-property 0 'display dir)
|
|
(concat " "
|
|
(get-text-property 0 'display dir))
|
|
" ↪ "))
|
|
(subdirs
|
|
(mpc-assq-all 'directory
|
|
(mpc-proc-buf-to-alist
|
|
(mpc-proc-cmd (list "lsinfo" dir))))))
|
|
(dolist (subdir subdirs)
|
|
(put-text-property 0 (1+ (length dir))
|
|
'display shortdir
|
|
subdir))
|
|
subdirs))
|
|
(process-get (mpc-proc) 'Directory)))
|
|
;; If there's an other-tag, then just extract the dir info from the
|
|
;; list of other-tag's songs.
|
|
(let* ((other-songs (mpc-cmd-find other-tag value))
|
|
(files (mpc-assq-all 'file (apply 'append other-songs)))
|
|
(dirs '()))
|
|
(dolist (file files)
|
|
(let ((dir (file-name-directory file)))
|
|
(if (and dir (setq dir (directory-file-name dir))
|
|
(not (equal dir (car dirs))))
|
|
(push dir dirs))))
|
|
;; Dirs might have duplicates still.
|
|
(setq dirs (delete-dups dirs))
|
|
(let ((newdirs dirs))
|
|
(while newdirs
|
|
(let ((dir (file-name-directory (pop newdirs))))
|
|
(when (and dir (setq dir (directory-file-name dir))
|
|
(not (member dir dirs)))
|
|
(push dir newdirs)
|
|
(push dir dirs)))))
|
|
dirs)))
|
|
|
|
;; The UI should not provide access to such a thing anyway currently.
|
|
;; But I could imagine adding in the future a browser for the "search"
|
|
;; tag, which would provide things like previous searches. Not sure how
|
|
;; useful that would be tho.
|
|
((eq tag 'Search) (error "Not supported"))
|
|
|
|
((string-match "|" (symbol-name tag))
|
|
(let ((tag1 (intern (substring (symbol-name tag)
|
|
0 (match-beginning 0))))
|
|
(tag2 (intern (substring (symbol-name tag)
|
|
(match-end 0)))))
|
|
(mpc-union (mpc-cmd-list tag1 other-tag value)
|
|
(mpc-cmd-list tag2 other-tag value))))
|
|
|
|
((null other-tag)
|
|
(condition-case nil
|
|
(mapcar 'cdr (mpc-proc-cmd-to-alist (list "list" (symbol-name tag))))
|
|
(mpc-proc-error
|
|
;; If `tag' is not one of the expected tags, MPD burps about not
|
|
;; having the relevant table.
|
|
;; FIXME: check the kind of error.
|
|
(error "MPD does not know this tag %s" tag)
|
|
(mpc-assq-all tag (mpc-proc-cmd-to-alist "listallinfo")))))
|
|
(t
|
|
(condition-case nil
|
|
(if (mpc-cmd-special-tag-p other-tag)
|
|
(signal 'mpc-proc-error "Not implemented")
|
|
(mapcar 'cdr
|
|
(mpc-proc-cmd-to-alist
|
|
(list "list" (symbol-name tag)
|
|
(symbol-name other-tag) value))))
|
|
(mpc-proc-error
|
|
;; DAMN!! the 3-arg form of `list' is new in 0.12 !!
|
|
;; FIXME: check the kind of error.
|
|
(let ((other-songs (mpc-cmd-find other-tag value)))
|
|
(mpc-assq-all tag
|
|
;; Don't use `nconc' now that mpc-cmd-find may
|
|
;; return a memoized result.
|
|
(apply 'append other-songs))))))))
|
|
|
|
(defun mpc-cmd-stop (&optional callback)
|
|
(mpc-proc-cmd "stop" callback))
|
|
|
|
(defun mpc-cmd-clear (&optional callback)
|
|
(mpc-proc-cmd "clear" callback)
|
|
;; (setq mpc-queue-back nil mpc-queue nil)
|
|
)
|
|
|
|
(defun mpc-cmd-pause (&optional arg callback)
|
|
"Pause or resume playback of the queue of songs."
|
|
(let ((cb callback))
|
|
(mpc-proc-cmd (list "pause" arg)
|
|
(lambda () (mpc-status-refresh) (if cb (funcall cb))))
|
|
(unless callback (mpc-proc-sync))))
|
|
|
|
(defun mpc-cmd-status ()
|
|
(mpc-proc-cmd-to-alist "status"))
|
|
|
|
(defun mpc-cmd-play ()
|
|
(mpc-proc-cmd "play")
|
|
(mpc-status-refresh))
|
|
|
|
(defun mpc-cmd-add (files &optional playlist)
|
|
"Add the songs FILES to PLAYLIST.
|
|
If PLAYLIST is t or nil or missing, use the main playlist."
|
|
(mpc-proc-cmd (mpc-proc-cmd-list
|
|
(mapcar (lambda (file)
|
|
(if (stringp playlist)
|
|
(list "playlistadd" playlist file)
|
|
(list "add" file)))
|
|
files)))
|
|
(if (stringp playlist)
|
|
(mpc-cmd-flush 'Playlist playlist)))
|
|
|
|
(defun mpc-cmd-delete (song-poss &optional playlist)
|
|
"Delete the songs at positions SONG-POSS from PLAYLIST.
|
|
If PLAYLIST is t or nil or missing, use the main playlist."
|
|
(mpc-proc-cmd (mpc-proc-cmd-list
|
|
(mapcar (lambda (song-pos)
|
|
(if (stringp playlist)
|
|
(list "playlistdelete" playlist song-pos)
|
|
(list "delete" song-pos)))
|
|
;; Sort them from last to first, so the renumbering
|
|
;; caused by the earlier deletions don't affect
|
|
;; later ones.
|
|
(sort song-poss '>))))
|
|
(if (stringp playlist)
|
|
(puthash (cons 'Playlist playlist) nil mpc--find-memoize)))
|
|
|
|
|
|
(defun mpc-cmd-move (song-poss dest-pos &optional playlist)
|
|
(let ((i 0))
|
|
(mpc-proc-cmd
|
|
(mpc-proc-cmd-list
|
|
(mapcar (lambda (song-pos)
|
|
(if (>= song-pos dest-pos)
|
|
;; positions past dest-pos have been
|
|
;; shifted by i.
|
|
(setq song-pos (+ song-pos i)))
|
|
(prog1 (if (stringp playlist)
|
|
(list "playlistmove" playlist song-pos dest-pos)
|
|
(list "move" song-pos dest-pos))
|
|
(if (< song-pos dest-pos)
|
|
;; This move has shifted dest-pos by 1.
|
|
(decf dest-pos))
|
|
(incf i)))
|
|
;; Sort them from last to first, so the renumbering
|
|
;; caused by the earlier deletions affect
|
|
;; later ones a bit less.
|
|
(sort song-poss '>))))
|
|
(if (stringp playlist)
|
|
(puthash (cons 'Playlist playlist) nil mpc--find-memoize))))
|
|
|
|
(defun mpc-cmd-update (&optional arg callback)
|
|
(let ((cb callback))
|
|
(mpc-proc-cmd (if arg (list "update" arg) "update")
|
|
(lambda () (mpc-status-refresh) (if cb (funcall cb))))
|
|
(unless callback (mpc-proc-sync))))
|
|
|
|
(defun mpc-cmd-tagtypes ()
|
|
(mapcar 'cdr (mpc-proc-cmd-to-alist "tagtypes")))
|
|
|
|
;; This was never integrated into MPD.
|
|
;; (defun mpc-cmd-download (file)
|
|
;; (with-current-buffer (generate-new-buffer " *mpc download*")
|
|
;; (set-buffer-multibyte nil)
|
|
;; (let* ((proc (mpc-proc))
|
|
;; (stdbuf (process-buffer proc))
|
|
;; (markpos (marker-position (process-mark proc)))
|
|
;; (stdcoding (process-coding-system proc)))
|
|
;; (unwind-protect
|
|
;; (progn
|
|
;; (set-process-buffer proc (current-buffer))
|
|
;; (set-process-coding-system proc 'binary (cdr stdcoding))
|
|
;; (set-marker (process-mark proc) (point))
|
|
;; (mpc-proc-cmd (list "download" file)))
|
|
;; (set-process-buffer proc stdbuf)
|
|
;; (set-marker (process-mark proc) markpos stdbuf)
|
|
;; (set-process-coding-system proc (car stdcoding) (cdr stdcoding)))
|
|
;; ;; The command has completed, let's decode.
|
|
;; (goto-char (point-max))
|
|
;; (delete-char -1) ;Delete final newline.
|
|
;; (while (re-search-backward "^>" nil t)
|
|
;; (delete-char 1))
|
|
;; (current-buffer))))
|
|
|
|
;;; Misc ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defcustom mpc-mpd-music-directory nil
|
|
"Location of MPD's music directory."
|
|
:type '(choice (const nil) directory))
|
|
|
|
(defcustom mpc-data-directory
|
|
(if (and (not (file-directory-p "~/.mpc"))
|
|
(file-directory-p "~/.emacs.d"))
|
|
"~/.emacs.d/mpc" "~/.mpc")
|
|
"Directory where MPC.el stores auxiliary data."
|
|
:type 'directory)
|
|
|
|
(defun mpc-data-directory ()
|
|
(unless (file-directory-p mpc-data-directory)
|
|
(make-directory mpc-data-directory))
|
|
mpc-data-directory)
|
|
|
|
(defun mpc-file-local-copy (file)
|
|
;; Try to set mpc-mpd-music-directory.
|
|
(when (and (null mpc-mpd-music-directory)
|
|
(string-match "\\`localhost" mpc-host))
|
|
(let ((files '("~/.mpdconf" "/etc/mpd.conf"))
|
|
file)
|
|
(while (and files (not file))
|
|
(if (file-exists-p (car files)) (setq file (car files)))
|
|
(setq files (cdr files)))
|
|
(with-temp-buffer
|
|
(ignore-errors (insert-file-contents file))
|
|
(goto-char (point-min))
|
|
(if (re-search-forward "^music_directory[ ]+\"\\([^\"]+\\)\"")
|
|
(setq mpc-mpd-music-directory
|
|
(match-string 1))))))
|
|
;; Use mpc-mpd-music-directory if applicable, or else try to use the
|
|
;; `download' command, although it's never been accepted in `mpd' :-(
|
|
(if (and mpc-mpd-music-directory
|
|
(file-exists-p (expand-file-name file mpc-mpd-music-directory)))
|
|
(expand-file-name file mpc-mpd-music-directory)
|
|
;; (let ((aux (expand-file-name (replace-regexp-in-string "[/]" "|" file)
|
|
;; (mpc-data-directory))))
|
|
;; (unless (file-exists-p aux)
|
|
;; (condition-case err
|
|
;; (with-local-quit
|
|
;; (with-current-buffer (mpc-cmd-download file)
|
|
;; (write-region (point-min) (point-max) aux)
|
|
;; (kill-buffer (current-buffer))))
|
|
;; (mpc-proc-error (message "Download error: %s" err) (setq aux nil))))
|
|
;; aux)
|
|
))
|
|
|
|
;;; Formatter ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defun mpc-secs-to-time (secs)
|
|
;; We could use `format-seconds', but it doesn't seem worth the trouble
|
|
;; because we'd still need to check (>= secs (* 60 100)) since the special
|
|
;; %z only allows us to drop the large units for small values but
|
|
;; not to drop the small units for large values.
|
|
(if (stringp secs) (setq secs (string-to-number secs)))
|
|
(if (>= secs (* 60 100)) ;More than 100 minutes.
|
|
(format "%dh%02d" ;"%d:%02d:%02d"
|
|
(/ secs 3600) (% (/ secs 60) 60)) ;; (% secs 60)
|
|
(format "%d:%02d" (/ secs 60) (% secs 60))))
|
|
|
|
(defvar mpc-tempfiles nil)
|
|
(defconst mpc-tempfiles-reftable (make-hash-table :weakness 'key))
|
|
|
|
(defun mpc-tempfiles-clean ()
|
|
(let ((live ()))
|
|
(maphash (lambda (_k v) (push v live)) mpc-tempfiles-reftable)
|
|
(dolist (f mpc-tempfiles)
|
|
(unless (member f live) (ignore-errors (delete-file f))))
|
|
(setq mpc-tempfiles live)))
|
|
|
|
(defun mpc-tempfiles-add (key file)
|
|
(mpc-tempfiles-clean)
|
|
(puthash key file mpc-tempfiles-reftable)
|
|
(push file mpc-tempfiles))
|
|
|
|
(defun mpc-format (format-spec info &optional hscroll)
|
|
"Format the INFO according to FORMAT-SPEC, inserting the result at point."
|
|
(let* ((pos 0)
|
|
(start (point))
|
|
(col (if hscroll (- hscroll) 0))
|
|
(insert (lambda (str)
|
|
(cond
|
|
((>= col 0) (insert str))
|
|
(t (insert (substring str (min (length str) (- col))))))))
|
|
(pred nil))
|
|
(while (string-match "%\\(?:%\\|\\(-\\)?\\([0-9]+\\)?{\\([[:alpha:]][[:alnum:]]*\\)\\(?:-\\([^}]+\\)\\)?}\\)" format-spec pos)
|
|
(let ((pre-text (substring format-spec pos (match-beginning 0))))
|
|
(funcall insert pre-text)
|
|
(setq col (+ col (string-width pre-text))))
|
|
(setq pos (match-end 0))
|
|
(if (null (match-end 3))
|
|
(progn
|
|
(funcall insert "%")
|
|
(setq col (+ col 1)))
|
|
(let* ((size (match-string 2 format-spec))
|
|
(tag (intern (match-string 3 format-spec)))
|
|
(post (match-string 4 format-spec))
|
|
(right-align (match-end 1))
|
|
(text
|
|
(if (eq info 'self) (symbol-name tag)
|
|
(case tag
|
|
((Time Duration)
|
|
(let ((time (cdr (or (assq 'time info) (assq 'Time info)))))
|
|
(setq pred (list nil)) ;Just assume it's never eq.
|
|
(when time
|
|
(mpc-secs-to-time (if (and (eq tag 'Duration)
|
|
(string-match ":" time))
|
|
(substring time (match-end 0))
|
|
time)))))
|
|
(Cover
|
|
(let* ((dir (file-name-directory (cdr (assq 'file info))))
|
|
(cover (concat dir "cover.jpg"))
|
|
(file (condition-case err
|
|
(mpc-file-local-copy cover)
|
|
(error (message "MPC: %s" err))))
|
|
image)
|
|
;; (debug)
|
|
(push `(equal ',dir (file-name-directory (cdr (assq 'file info)))) pred)
|
|
(if (null file)
|
|
;; Make sure we return something on which we can
|
|
;; place the `mpc-pred' property, as
|
|
;; a negative-cache. We could also use
|
|
;; a default cover.
|
|
(progn (setq size nil) " ")
|
|
(if (null size) (setq image (create-image file))
|
|
(let ((tempfile (make-temp-file "mpc" nil ".jpg")))
|
|
(call-process "convert" nil nil nil
|
|
"-scale" size file tempfile)
|
|
(setq image (create-image tempfile))
|
|
(mpc-tempfiles-add image tempfile)))
|
|
(setq size nil)
|
|
(propertize dir 'display image))))
|
|
(t (let ((val (cdr (assq tag info))))
|
|
;; For Streaming URLs, there's no other info
|
|
;; than the URL in `file'. Pretend it's in `Title'.
|
|
(when (and (null val) (eq tag 'Title))
|
|
(setq val (cdr (assq 'file info))))
|
|
(push `(equal ',val (cdr (assq ',tag info))) pred)
|
|
val)))))
|
|
(space (when size
|
|
(setq size (string-to-number size))
|
|
(propertize " " 'display
|
|
(list 'space :align-to (+ col size)))))
|
|
(textwidth (if text (string-width text) 0))
|
|
(postwidth (if post (string-width post) 0)))
|
|
(when text
|
|
(let ((display
|
|
(if (and size
|
|
(> (+ postwidth textwidth) size))
|
|
;; This doesn't even obey double-width chars :-(
|
|
(propertize
|
|
(if (zerop (- size postwidth 1))
|
|
(substring text 0 1)
|
|
(concat (substring text 0 (- size postwidth textwidth 1)) "…"))
|
|
'help-echo text)
|
|
text)))
|
|
(when (memq tag '(Artist Album Composer)) ;FIXME: wrong list.
|
|
(setq display
|
|
(propertize display
|
|
'mouse-face 'highlight
|
|
'follow-link t
|
|
'keymap `(keymap
|
|
(mouse-2
|
|
. (lambda ()
|
|
(interactive)
|
|
(mpc-constraints-push 'noerror)
|
|
(mpc-constraints-restore
|
|
',(list (list tag text)))))))))
|
|
(funcall insert
|
|
(concat (when size
|
|
(propertize " " 'display
|
|
(list 'space :align-to
|
|
(+ col
|
|
(if (and size right-align)
|
|
(- size postwidth textwidth)
|
|
0)))))
|
|
display post))))
|
|
(if (null size) (setq col (+ col textwidth postwidth))
|
|
(insert space)
|
|
(setq col (+ col size))))))
|
|
(put-text-property start (point) 'mpc-pred
|
|
`(lambda (info) (and ,@(nreverse pred))))))
|
|
|
|
;;; The actual UI code ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar mpc-mode-map
|
|
(let ((map (make-keymap)))
|
|
(suppress-keymap map)
|
|
;; (define-key map "\e" 'mpc-stop)
|
|
(define-key map "q" 'mpc-quit)
|
|
(define-key map "\r" 'mpc-select)
|
|
(define-key map [(shift return)] 'mpc-select-toggle)
|
|
(define-key map [mouse-2] 'mpc-select)
|
|
(define-key map [S-mouse-2] 'mpc-select-extend)
|
|
(define-key map [C-mouse-2] 'mpc-select-toggle)
|
|
(define-key map [drag-mouse-2] 'mpc-drag-n-drop)
|
|
;; We use `always' because a binding to t is like a binding to nil.
|
|
(define-key map [follow-link] 'always)
|
|
;; Doesn't work because the first click changes the buffer, so the second
|
|
;; is applied elsewhere :-(
|
|
;; (define-key map [(double mouse-2)] 'mpc-play-at-point)
|
|
(define-key map "p" 'mpc-pause)
|
|
map))
|
|
|
|
(easy-menu-define mpc-mode-menu mpc-mode-map
|
|
"Menu for MPC.el."
|
|
'("MPC.el"
|
|
["Add new browser" mpc-tagbrowser]
|
|
["Update DB" mpc-update]
|
|
["Quit" mpc-quit]))
|
|
|
|
(defvar mpc-tool-bar-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(tool-bar-local-item "mpc/prev" 'mpc-prev 'prev map
|
|
:enable '(not (equal (cdr (assq 'state mpc-status)) "stop"))
|
|
:label "Prev" :vert-only t)
|
|
;; FIXME: how can we bind it to the down-event?
|
|
(tool-bar-local-item "mpc/rewind" 'mpc-rewind 'rewind map
|
|
:enable '(not (equal (cdr (assq 'state mpc-status)) "stop"))
|
|
:label "Rew" :vert-only t
|
|
:button '(:toggle . (and mpc--faster-toggle-timer
|
|
(not mpc--faster-toggle-forward))))
|
|
;; We could use a single toggle command for pause/play, with 2 different
|
|
;; icons depending on whether or not it's selected, but then it'd have
|
|
;; to be a toggle-button, thus displayed depressed in one of the
|
|
;; two states :-(
|
|
(tool-bar-local-item "mpc/pause" 'mpc-pause 'pause map
|
|
:label "Pause" :vert-only t
|
|
:visible '(equal (cdr (assq 'state mpc-status)) "play")
|
|
:help "Pause/play")
|
|
(tool-bar-local-item "mpc/play" 'mpc-play 'play map
|
|
:label "Play" :vert-only t
|
|
:visible '(not (equal (cdr (assq 'state mpc-status)) "play"))
|
|
:help "Play/pause")
|
|
;; FIXME: how can we bind it to the down-event?
|
|
(tool-bar-local-item "mpc/ffwd" 'mpc-ffwd 'ffwd map
|
|
:enable '(not (equal (cdr (assq 'state mpc-status)) "stop"))
|
|
:label "Ffwd" :vert-only t
|
|
:button '(:toggle . (and mpc--faster-toggle-timer
|
|
mpc--faster-toggle-forward)))
|
|
(tool-bar-local-item "mpc/next" 'mpc-next 'next map
|
|
:label "Next" :vert-only t
|
|
:enable '(not (equal (cdr (assq 'state mpc-status)) "stop")))
|
|
(tool-bar-local-item "mpc/stop" 'mpc-stop 'stop map
|
|
:label "Stop" :vert-only t)
|
|
(tool-bar-local-item "mpc/add" 'mpc-playlist-add 'add map
|
|
:label "Add" :vert-only t
|
|
:help "Append to the playlist")
|
|
map))
|
|
|
|
(define-derived-mode mpc-mode fundamental-mode "MPC"
|
|
"Major mode for the features common to all buffers of MPC."
|
|
(buffer-disable-undo)
|
|
(setq buffer-read-only t)
|
|
(set (make-local-variable 'tool-bar-map) mpc-tool-bar-map)
|
|
(set (make-local-variable 'truncate-lines) t))
|
|
|
|
;;; The mpc-status-mode buffer ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(define-derived-mode mpc-status-mode mpc-mode "MPC-Status"
|
|
"Major mode to display MPC status info."
|
|
(set (make-local-variable 'mode-line-format)
|
|
'("%e" mode-line-frame-identification mode-line-buffer-identification))
|
|
(set (make-local-variable 'window-area-factor) 3)
|
|
(set (make-local-variable 'header-line-format) '("MPC " mpc-volume)))
|
|
|
|
(defvar mpc-status-buffer-format
|
|
'("%-5{Time} / %{Duration} %2{Disc--}%4{Track}" "%{Title}" "%{Album}" "%{Artist}" "%128{Cover}"))
|
|
|
|
(defun mpc-status-buffer-refresh ()
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'status)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(when (assq 'file mpc-status)
|
|
(let ((inhibit-read-only t))
|
|
(dolist (spec mpc-status-buffer-format)
|
|
(let ((pred (get-text-property (point) 'mpc-pred)))
|
|
(if (and pred (funcall pred mpc-status))
|
|
(forward-line)
|
|
(delete-region (point) (line-beginning-position 2))
|
|
(ignore-errors (mpc-format spec mpc-status))
|
|
(insert "\n"))))
|
|
(unless (eobp) (delete-region (point) (point-max))))))))))
|
|
|
|
(defun mpc-status-buffer-show ()
|
|
(interactive)
|
|
(let* ((buf (mpc-proc-buffer (mpc-proc) 'status))
|
|
(songs-buf (mpc-proc-buffer (mpc-proc) 'songs))
|
|
(songs-win (if songs-buf (get-buffer-window songs-buf 0))))
|
|
(unless (buffer-live-p buf)
|
|
(setq buf (get-buffer-create "*MPC-Status*"))
|
|
(with-current-buffer buf
|
|
(mpc-status-mode))
|
|
(mpc-proc-buffer (mpc-proc) 'status buf))
|
|
(if (null songs-win) (pop-to-buffer buf)
|
|
(let ((_win (split-window songs-win 20 t)))
|
|
(set-window-dedicated-p songs-win nil)
|
|
(set-window-buffer songs-win buf)
|
|
(set-window-dedicated-p songs-win 'soft)))))
|
|
|
|
;;; Selection management;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar mpc-separator-ol nil)
|
|
|
|
(defvar mpc-select nil)
|
|
(make-variable-buffer-local 'mpc-select)
|
|
|
|
(defmacro mpc-select-save (&rest body)
|
|
"Execute BODY and restore the selection afterwards."
|
|
(declare (indent 0) (debug t))
|
|
`(let ((selection (mpc-select-get-selection))
|
|
(position (cons (buffer-substring-no-properties
|
|
(line-beginning-position) (line-end-position))
|
|
(current-column))))
|
|
,@body
|
|
(mpc-select-restore selection)
|
|
(goto-char (point-min))
|
|
(if (re-search-forward
|
|
(concat "^" (regexp-quote (car position)) "$")
|
|
(if (overlayp mpc-separator-ol)
|
|
(overlay-end mpc-separator-ol))
|
|
t)
|
|
(move-to-column (cdr position)))
|
|
(let ((win (get-buffer-window (current-buffer) 0)))
|
|
(if win (set-window-point win (point))))))
|
|
|
|
(defun mpc-select-get-selection ()
|
|
(mapcar (lambda (ol)
|
|
(buffer-substring-no-properties
|
|
(overlay-start ol) (1- (overlay-end ol))))
|
|
mpc-select))
|
|
|
|
(defun mpc-select-restore (selection)
|
|
;; Restore the selection. I.e. move the overlays back to their
|
|
;; corresponding location. Actually which overlay is used for what
|
|
;; doesn't matter.
|
|
(mapc 'delete-overlay mpc-select)
|
|
(setq mpc-select nil)
|
|
(dolist (elem selection)
|
|
;; After an update, some elements may have disappeared.
|
|
(goto-char (point-min))
|
|
(when (re-search-forward
|
|
(concat "^" (regexp-quote elem) "$") nil t)
|
|
(mpc-select-make-overlay)))
|
|
(when mpc-tag (mpc-tagbrowser-all-select))
|
|
(beginning-of-line))
|
|
|
|
(defun mpc-select-make-overlay ()
|
|
(assert (not (get-char-property (point) 'mpc-select)))
|
|
(let ((ol (make-overlay
|
|
(line-beginning-position) (line-beginning-position 2))))
|
|
(overlay-put ol 'mpc-select t)
|
|
(overlay-put ol 'face 'region)
|
|
(overlay-put ol 'evaporate t)
|
|
(push ol mpc-select)))
|
|
|
|
(defun mpc-select (&optional event)
|
|
"Select the tag value at point."
|
|
(interactive (list last-nonmenu-event))
|
|
(mpc-event-set-point event)
|
|
(if (and (bolp) (eobp)) (forward-line -1))
|
|
(mapc 'delete-overlay mpc-select)
|
|
(setq mpc-select nil)
|
|
(if (mpc-tagbrowser-all-p)
|
|
nil
|
|
(mpc-select-make-overlay))
|
|
(when mpc-tag
|
|
(mpc-tagbrowser-all-select)
|
|
(mpc-selection-refresh)))
|
|
|
|
(defun mpc-select-toggle (&optional event)
|
|
"Toggle the selection of the tag value at point."
|
|
(interactive (list last-nonmenu-event))
|
|
(mpc-event-set-point event)
|
|
(save-excursion
|
|
(cond
|
|
;; The line is already selected: deselect it.
|
|
((get-char-property (point) 'mpc-select)
|
|
(let ((ols nil))
|
|
(dolist (ol mpc-select)
|
|
(if (and (<= (overlay-start ol) (point))
|
|
(> (overlay-end ol) (point)))
|
|
(delete-overlay ol)
|
|
(push ol ols)))
|
|
(assert (= (1+ (length ols)) (length mpc-select)))
|
|
(setq mpc-select ols)))
|
|
;; We're trying to select *ALL* additionally to others.
|
|
((mpc-tagbrowser-all-p) nil)
|
|
;; Select the current line.
|
|
(t (mpc-select-make-overlay))))
|
|
(when mpc-tag
|
|
(mpc-tagbrowser-all-select)
|
|
(mpc-selection-refresh)))
|
|
|
|
(defun mpc-select-extend (&optional event)
|
|
"Extend the selection up to point."
|
|
(interactive (list last-nonmenu-event))
|
|
(mpc-event-set-point event)
|
|
(if (null mpc-select)
|
|
;; If nothing's selected yet, fallback to selecting the elem at point.
|
|
(mpc-select event)
|
|
(save-excursion
|
|
(cond
|
|
;; The line is already in a selected area; truncate the area.
|
|
((get-char-property (point) 'mpc-select)
|
|
(let ((before 0)
|
|
(after 0)
|
|
(mid (line-beginning-position))
|
|
start end)
|
|
(while (and (zerop (forward-line 1))
|
|
(get-char-property (point) 'mpc-select))
|
|
(setq end (1+ (point)))
|
|
(incf after))
|
|
(goto-char mid)
|
|
(while (and (zerop (forward-line -1))
|
|
(get-char-property (point) 'mpc-select))
|
|
(setq start (point))
|
|
(incf before))
|
|
(if (and (= after 0) (= before 0))
|
|
;; Shortening an already minimum-size region: do nothing.
|
|
nil
|
|
(if (> after before)
|
|
(setq end mid)
|
|
(setq start (1+ mid)))
|
|
(let ((ols '()))
|
|
(dolist (ol mpc-select)
|
|
(if (and (>= (overlay-start ol) start)
|
|
(< (overlay-start ol) end))
|
|
(delete-overlay ol)
|
|
(push ol ols)))
|
|
(setq mpc-select (nreverse ols))))))
|
|
;; Extending a prior area. Look for the closest selection.
|
|
(t
|
|
(when (mpc-tagbrowser-all-p)
|
|
(forward-line 1))
|
|
(let ((before 0)
|
|
(count 0)
|
|
(dir 1)
|
|
(start (line-beginning-position)))
|
|
(while (and (zerop (forward-line 1))
|
|
(not (get-char-property (point) 'mpc-select)))
|
|
(incf count))
|
|
(unless (get-char-property (point) 'mpc-select)
|
|
(setq count nil))
|
|
(goto-char start)
|
|
(while (and (zerop (forward-line -1))
|
|
(not (get-char-property (point) 'mpc-select)))
|
|
(incf before))
|
|
(unless (get-char-property (point) 'mpc-select)
|
|
(setq before nil))
|
|
(when (and before (or (null count) (< before count)))
|
|
(setq count before)
|
|
(setq dir -1))
|
|
(goto-char start)
|
|
(dotimes (_i (1+ (or count 0)))
|
|
(mpc-select-make-overlay)
|
|
(forward-line dir))))))
|
|
(when mpc-tag
|
|
(mpc-tagbrowser-all-select)
|
|
(mpc-selection-refresh))))
|
|
|
|
;;; Constraint sets ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar mpc--song-search nil)
|
|
|
|
(defun mpc-constraints-get-current (&optional avoid-buf)
|
|
"Return currently selected set of constraints.
|
|
If AVOID-BUF is non-nil, it specifies a buffer which should be ignored
|
|
when constructing the set of constraints."
|
|
(let ((constraints (if mpc--song-search `((Search ,mpc--song-search))))
|
|
tag select)
|
|
(dolist (buf (process-get (mpc-proc) 'buffers))
|
|
(setq buf (cdr buf))
|
|
(when (and (setq tag (buffer-local-value 'mpc-tag buf))
|
|
(not (eq buf avoid-buf))
|
|
(setq select
|
|
(with-current-buffer buf (mpc-select-get-selection))))
|
|
(push (cons tag select) constraints)))
|
|
constraints))
|
|
|
|
(defun mpc-constraints-tag-lookup (buffer-tag constraints)
|
|
(let (res)
|
|
(dolist (constraint constraints)
|
|
(when (or (eq (car constraint) buffer-tag)
|
|
(and (string-match "|" (symbol-name buffer-tag))
|
|
(member (symbol-name (car constraint))
|
|
(split-string (symbol-name buffer-tag) "|"))))
|
|
(setq res (cdr constraint))))
|
|
res))
|
|
|
|
(defun mpc-constraints-restore (constraints)
|
|
(let ((search (assq 'Search constraints)))
|
|
(setq mpc--song-search (cadr search))
|
|
(when search (setq constraints (delq search constraints))))
|
|
(dolist (buf (process-get (mpc-proc) 'buffers))
|
|
(setq buf (cdr buf))
|
|
(when (buffer-live-p buf)
|
|
(let* ((tag (buffer-local-value 'mpc-tag buf))
|
|
(constraint (mpc-constraints-tag-lookup tag constraints)))
|
|
(when tag
|
|
(with-current-buffer buf
|
|
(mpc-select-restore constraint))))))
|
|
(mpc-selection-refresh))
|
|
|
|
;; I don't get the ring.el code. I think it doesn't do what I need, but
|
|
;; then I don't understand when what it does would be useful.
|
|
(defun mpc-ring-make (size) (cons 0 (cons 0 (make-vector size nil))))
|
|
(defun mpc-ring-push (ring val)
|
|
(aset (cddr ring) (car ring) val)
|
|
(setcar (cdr ring) (max (cadr ring) (1+ (car ring))))
|
|
(setcar ring (mod (1+ (car ring)) (length (cddr ring)))))
|
|
(defun mpc-ring-pop (ring)
|
|
(setcar ring (mod (1- (car ring)) (cadr ring)))
|
|
(aref (cddr ring) (car ring)))
|
|
|
|
(defvar mpc-constraints-ring (mpc-ring-make 10))
|
|
|
|
(defun mpc-constraints-push (&optional noerror)
|
|
"Push the current selection on the ring for later."
|
|
(interactive)
|
|
(let ((constraints (mpc-constraints-get-current)))
|
|
(if (null constraints)
|
|
(unless noerror (error "No selection to push"))
|
|
(mpc-ring-push mpc-constraints-ring constraints))))
|
|
|
|
(defun mpc-constraints-pop ()
|
|
"Recall the most recently pushed selection."
|
|
(interactive)
|
|
(let ((constraints (mpc-ring-pop mpc-constraints-ring)))
|
|
(if (null constraints)
|
|
(error "No selection to return to")
|
|
(mpc-constraints-restore constraints))))
|
|
|
|
;;; The TagBrowser mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defconst mpc-tagbrowser-all-name (propertize "*ALL*" 'face 'italic))
|
|
(defvar mpc-tagbrowser-all-ol nil)
|
|
(make-variable-buffer-local 'mpc-tagbrowser-all-ol)
|
|
(defvar mpc-tag-name nil) (make-variable-buffer-local 'mpc-tag-name)
|
|
(defun mpc-tagbrowser-all-p ()
|
|
(and (eq (point-min) (line-beginning-position))
|
|
(equal mpc-tagbrowser-all-name
|
|
(buffer-substring (point-min) (line-end-position)))))
|
|
|
|
(define-derived-mode mpc-tagbrowser-mode mpc-mode '("MPC-" mpc-tag-name)
|
|
(set (make-local-variable 'mode-line-process) '("" mpc-tag-name))
|
|
(set (make-local-variable 'mode-line-format) nil)
|
|
(set (make-local-variable 'header-line-format) '("" mpc-tag-name ;; "s"
|
|
))
|
|
(set (make-local-variable 'buffer-undo-list) t)
|
|
)
|
|
|
|
(defun mpc-tagbrowser-refresh ()
|
|
(mpc-select-save
|
|
(widen)
|
|
(goto-char (point-min))
|
|
(assert (looking-at (regexp-quote mpc-tagbrowser-all-name)))
|
|
(forward-line 1)
|
|
(let ((inhibit-read-only t))
|
|
(delete-region (point) (point-max))
|
|
(dolist (val (mpc-cmd-list mpc-tag)) (insert val "\n")))
|
|
(set-buffer-modified-p nil))
|
|
(mpc-reorder))
|
|
|
|
(defun mpc-updated-db ()
|
|
;; FIXME: This is not asynchronous, but is run from a process filter.
|
|
(unless (assq 'updating_db mpc-status)
|
|
(clrhash mpc--find-memoize)
|
|
(dolist (buf (process-get (mpc-proc) 'buffers))
|
|
(setq buf (cdr buf))
|
|
(when (buffer-local-value 'mpc-tag buf)
|
|
(with-current-buffer buf (with-local-quit (mpc-tagbrowser-refresh)))))
|
|
(with-local-quit (mpc-songs-refresh))))
|
|
|
|
(defun mpc-tagbrowser-tag-name (tag)
|
|
(cond
|
|
((string-match "|" (symbol-name tag))
|
|
(let ((tag1 (intern (substring (symbol-name tag)
|
|
0 (match-beginning 0))))
|
|
(tag2 (intern (substring (symbol-name tag)
|
|
(match-end 0)))))
|
|
(concat (mpc-tagbrowser-tag-name tag1)
|
|
" | "
|
|
(mpc-tagbrowser-tag-name tag2))))
|
|
((string-match "y\\'" (symbol-name tag))
|
|
(concat (substring (symbol-name tag) 0 -1) "ies"))
|
|
(t (concat (symbol-name tag) "s"))))
|
|
|
|
(defun mpc-tagbrowser-buf (tag)
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) tag)))
|
|
(if (buffer-live-p buf) buf
|
|
(setq buf (get-buffer-create (format "*MPC %ss*" tag)))
|
|
(mpc-proc-buffer (mpc-proc) tag buf)
|
|
(with-current-buffer buf
|
|
(let ((inhibit-read-only t))
|
|
(erase-buffer)
|
|
(if (member tag '(Directory))
|
|
(mpc-tagbrowser-dir-mode)
|
|
(mpc-tagbrowser-mode))
|
|
(insert mpc-tagbrowser-all-name "\n"))
|
|
(forward-line -1)
|
|
(setq mpc-tag tag)
|
|
(setq mpc-tag-name (mpc-tagbrowser-tag-name tag))
|
|
(mpc-tagbrowser-all-select)
|
|
(mpc-tagbrowser-refresh)
|
|
buf))))
|
|
|
|
(defvar tag-browser-tagtypes
|
|
(lazy-completion-table tag-browser-tagtypes
|
|
(lambda ()
|
|
(append '("Playlist" "Directory")
|
|
(mpc-cmd-tagtypes)))))
|
|
|
|
(defun mpc-tagbrowser (tag)
|
|
"Create a new browser for TAG."
|
|
(interactive
|
|
(list
|
|
(let ((completion-ignore-case t))
|
|
(intern
|
|
(completing-read "Tag: " tag-browser-tagtypes nil 'require-match)))))
|
|
(let* ((newbuf (mpc-tagbrowser-buf tag))
|
|
(win (get-buffer-window newbuf 0)))
|
|
(if win (select-window win)
|
|
(if (with-current-buffer (window-buffer (selected-window))
|
|
(derived-mode-p 'mpc-tagbrowser-mode))
|
|
(setq win (selected-window))
|
|
;; Find a tagbrowser-mode buffer.
|
|
(let ((buffers (process-get (mpc-proc) 'buffers))
|
|
buffer)
|
|
(while
|
|
(and buffers
|
|
(not (and (buffer-live-p (setq buffer (cdr (pop buffers))))
|
|
(with-current-buffer buffer
|
|
(derived-mode-p 'mpc-tagbrowser-mode))
|
|
(setq win (get-buffer-window buffer 0))))))))
|
|
(if (not win)
|
|
(pop-to-buffer newbuf)
|
|
(setq win (split-window win nil 'horiz))
|
|
(set-window-buffer win newbuf)
|
|
(set-window-dedicated-p win 'soft)
|
|
(select-window win)
|
|
(balance-windows-area)))))
|
|
|
|
(defun mpc-tagbrowser-all-select ()
|
|
"Select the special *ALL* entry if no other is selected."
|
|
(if mpc-select
|
|
(delete-overlay mpc-tagbrowser-all-ol)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(if mpc-tagbrowser-all-ol
|
|
(move-overlay mpc-tagbrowser-all-ol
|
|
(point) (line-beginning-position 2))
|
|
(let ((ol (make-overlay (point) (line-beginning-position 2))))
|
|
(overlay-put ol 'face 'region)
|
|
(overlay-put ol 'evaporate t)
|
|
(set (make-local-variable 'mpc-tagbrowser-all-ol) ol))))))
|
|
|
|
;; (defvar mpc-constraints nil)
|
|
(defun mpc-separator (active)
|
|
;; Place a separator mark.
|
|
(unless mpc-separator-ol
|
|
(set (make-local-variable 'mpc-separator-ol)
|
|
(make-overlay (point) (point)))
|
|
(overlay-put mpc-separator-ol 'after-string
|
|
(propertize "\n"
|
|
'face '(:height 0.05 :inverse-video t))))
|
|
(goto-char (point-min))
|
|
(forward-line 1)
|
|
(while
|
|
(and (member (buffer-substring-no-properties
|
|
(line-beginning-position) (line-end-position))
|
|
active)
|
|
(zerop (forward-line 1))))
|
|
(if (or (eobp) (null active))
|
|
(delete-overlay mpc-separator-ol)
|
|
(move-overlay mpc-separator-ol (1- (point)) (point))))
|
|
|
|
(defun mpc-sort (active)
|
|
;; Sort the active elements at the front.
|
|
(let ((inhibit-read-only t))
|
|
(goto-char (point-min))
|
|
(if (mpc-tagbrowser-all-p) (forward-line 1))
|
|
(condition-case nil
|
|
(sort-subr nil 'forward-line 'end-of-line
|
|
nil nil
|
|
(lambda (s1 s2)
|
|
(setq s1 (buffer-substring-no-properties
|
|
(car s1) (cdr s1)))
|
|
(setq s2 (buffer-substring-no-properties
|
|
(car s2) (cdr s2)))
|
|
(cond
|
|
((member s1 active)
|
|
(if (member s2 active)
|
|
(let ((cmp (mpc-compare-strings s1 s2 t)))
|
|
(and (numberp cmp) (< cmp 0)))
|
|
t))
|
|
((member s2 active) nil)
|
|
(t (let ((cmp (mpc-compare-strings s1 s2 t)))
|
|
(and (numberp cmp) (< cmp 0)))))))
|
|
;; The comparison predicate arg is new in Emacs-22.
|
|
(wrong-number-of-arguments
|
|
(sort-subr nil 'forward-line 'end-of-line
|
|
(lambda ()
|
|
(let ((name (buffer-substring-no-properties
|
|
(point) (line-end-position))))
|
|
(cond
|
|
((member name active) (concat "1" name))
|
|
(t (concat "2" "name"))))))))))
|
|
|
|
(defvar mpc--changed-selection)
|
|
|
|
(defun mpc-reorder (&optional nodeactivate)
|
|
"Reorder entries based on thre currently active selections.
|
|
I.e. split the current browser buffer into a first part containing the
|
|
entries included in the selection, then a separator, and then the entries
|
|
not included in the selection.
|
|
Return non-nil if a selection was deactivated."
|
|
(mpc-select-save
|
|
(let ((constraints (mpc-constraints-get-current (current-buffer)))
|
|
(active 'all))
|
|
;; (unless (equal constraints mpc-constraints)
|
|
;; (set (make-local-variable 'mpc-constraints) constraints)
|
|
(dolist (cst constraints)
|
|
(let ((vals (apply 'mpc-union
|
|
(mapcar (lambda (val)
|
|
(mpc-cmd-list mpc-tag (car cst) val))
|
|
(cdr cst)))))
|
|
(setq active
|
|
(if (listp active) (mpc-intersection active vals) vals))))
|
|
|
|
(when (and (listp active))
|
|
;; Remove the selections if they are all in conflict with
|
|
;; other constraints.
|
|
(let ((deactivate t))
|
|
(dolist (sel selection)
|
|
(when (member sel active) (setq deactivate nil)))
|
|
(when deactivate
|
|
;; Variable declared/used by `mpc-select-save'.
|
|
(when selection
|
|
(setq mpc--changed-selection t))
|
|
(unless nodeactivate
|
|
(setq selection nil)
|
|
(mapc 'delete-overlay mpc-select)
|
|
(setq mpc-select nil)
|
|
(mpc-tagbrowser-all-select)))))
|
|
|
|
;; FIXME: This `mpc-sort' takes a lot of time. Maybe we should
|
|
;; be more clever and presume the buffer is mostly sorted already.
|
|
(mpc-sort (if (listp active) active))
|
|
(mpc-separator (if (listp active) active)))))
|
|
|
|
(defun mpc-selection-refresh ()
|
|
(let ((mpc--changed-selection t))
|
|
(while mpc--changed-selection
|
|
(setq mpc--changed-selection nil)
|
|
(dolist (buf (process-get (mpc-proc) 'buffers))
|
|
(setq buf (cdr buf))
|
|
(when (and (buffer-local-value 'mpc-tag buf)
|
|
(not (eq buf (current-buffer))))
|
|
(with-current-buffer buf (mpc-reorder)))))
|
|
;; FIXME: reorder the current buffer last and prevent deactivation,
|
|
;; since whatever selection we made here is the most recent one
|
|
;; and should hence take precedence.
|
|
(when mpc-tag (mpc-reorder 'nodeactivate))
|
|
;; FIXME: comment?
|
|
(if (and mpc--song-search mpc--changed-selection)
|
|
(progn
|
|
(setq mpc--song-search nil)
|
|
(mpc-selection-refresh))
|
|
(mpc-songs-refresh))))
|
|
|
|
;;; Hierarchical tagbrowser ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; Todo:
|
|
;; - Add a button on each dir to open/close it (?)
|
|
;; - add the parent dir on the previous line, greyed-out, if it's not
|
|
;; present (because we're in the non-selected part and the parent is
|
|
;; in the selected part).
|
|
|
|
(defvar mpc-tagbrowser-dir-mode-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(set-keymap-parent map mpc-tagbrowser-mode-map)
|
|
(define-key map [?\M-\C-m] 'mpc-tagbrowser-dir-toggle)
|
|
map))
|
|
|
|
;; (defvar mpc-tagbrowser-dir-keywords
|
|
;; '(mpc-tagbrowser-dir-hide-prefix))
|
|
|
|
(define-derived-mode mpc-tagbrowser-dir-mode mpc-tagbrowser-mode '("MPC-" mpc-tag-name)
|
|
;; (set (make-local-variable 'font-lock-defaults)
|
|
;; '(mpc-tagbrowser-dir-keywords t))
|
|
)
|
|
|
|
;; (defun mpc-tagbrowser-dir-hide-prefix (limit)
|
|
;; (while
|
|
;; (let ((prev (buffer-substring (line-beginning-position 0)
|
|
;; (line-end-position 0))))
|
|
;; (
|
|
|
|
(defun mpc-tagbrowser-dir-toggle (event)
|
|
"Open or close the element at point."
|
|
(interactive (list last-nonmenu-event))
|
|
(mpc-event-set-point event)
|
|
(let ((name (buffer-substring (line-beginning-position)
|
|
(line-end-position)))
|
|
(prop (intern mpc-tag)))
|
|
(if (not (member name (process-get (mpc-proc) prop)))
|
|
(process-put (mpc-proc) prop
|
|
(cons name (process-get (mpc-proc) prop)))
|
|
(let ((new (delete name (process-get (mpc-proc) prop))))
|
|
(setq name (concat name "/"))
|
|
(process-put (mpc-proc) prop
|
|
(delq nil
|
|
(mapcar (lambda (x)
|
|
(if (mpc-string-prefix-p name x)
|
|
nil x))
|
|
new)))))
|
|
(mpc-tagbrowser-refresh)))
|
|
|
|
|
|
;;; Playlist management ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar mpc-songs-playlist nil
|
|
"Name of the currently selected playlist, if any.
|
|
A value of t means the main playlist.")
|
|
(make-variable-buffer-local 'mpc-songs-playlist)
|
|
|
|
(defun mpc-playlist-create (name)
|
|
"Save current playlist under name NAME."
|
|
(interactive "sPlaylist name: ")
|
|
(mpc-proc-cmd (list "save" name))
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'Playlist)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf (mpc-tagbrowser-refresh)))))
|
|
|
|
(defun mpc-playlist-destroy (name)
|
|
"Delete playlist named NAME."
|
|
(interactive
|
|
(list (completing-read "Delete playlist: " (mpc-cmd-list 'Playlist)
|
|
nil 'require-match)))
|
|
(mpc-proc-cmd (list "rm" name))
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'Playlist)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf (mpc-tagbrowser-refresh)))))
|
|
|
|
(defun mpc-playlist-rename (oldname newname)
|
|
"Rename playlist OLDNAME to NEWNAME."
|
|
(interactive
|
|
(let* ((oldname (if (and (eq mpc-tag 'Playlist) (null current-prefix-arg))
|
|
(buffer-substring (line-beginning-position)
|
|
(line-end-position))
|
|
(completing-read "Rename playlist: "
|
|
(mpc-cmd-list 'Playlist)
|
|
nil 'require-match)))
|
|
(newname (read-string (format "Rename '%s' to: " oldname))))
|
|
(if (zerop (length newname))
|
|
(error "Aborted")
|
|
(list oldname newname))))
|
|
(mpc-proc-cmd (list "rename" oldname newname))
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'Playlist)))
|
|
(if (buffer-live-p buf)
|
|
(with-current-buffer buf (mpc-tagbrowser-refresh)))))
|
|
|
|
(defun mpc-playlist ()
|
|
"Show the current playlist."
|
|
(interactive)
|
|
(mpc-constraints-push 'noerror)
|
|
(mpc-constraints-restore '()))
|
|
|
|
(defun mpc-playlist-add ()
|
|
"Add the selection to the playlist."
|
|
(interactive)
|
|
(let ((songs (mapcar #'car (mpc-songs-selection))))
|
|
(mpc-cmd-add songs)
|
|
(message "Appended %d songs" (length songs))
|
|
;; Return the songs added. Used in `mpc-play'.
|
|
songs))
|
|
|
|
(defun mpc-playlist-delete ()
|
|
"Remove the selected songs from the playlist."
|
|
(interactive)
|
|
(unless mpc-songs-playlist
|
|
(error "The selected songs aren't part of a playlist"))
|
|
(let ((song-poss (mapcar #'cdr (mpc-songs-selection))))
|
|
(mpc-cmd-delete song-poss mpc-songs-playlist)
|
|
(mpc-songs-refresh)
|
|
(message "Deleted %d songs" (length song-poss))))
|
|
|
|
;;; Volume management ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar mpc-volume-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(define-key map [down-mouse-1] 'mpc-volume-mouse-set)
|
|
(define-key map [mouse-1] 'ignore)
|
|
(define-key map [header-line down-mouse-1] 'mpc-volume-mouse-set)
|
|
(define-key map [header-line mouse-1] 'ignore)
|
|
(define-key map [mode-line down-mouse-1] 'mpc-volume-mouse-set)
|
|
(define-key map [mode-line mouse-1] 'ignore)
|
|
map))
|
|
|
|
(defvar mpc-volume nil) (put 'mpc-volume 'risky-local-variable t)
|
|
|
|
(defun mpc-volume-refresh ()
|
|
;; Maintain the volume.
|
|
(setq mpc-volume
|
|
(mpc-volume-widget
|
|
(string-to-number (cdr (assq 'volume mpc-status))))))
|
|
|
|
(defvar mpc-volume-step 5)
|
|
|
|
(defun mpc-volume-mouse-set (&optional event)
|
|
"Change volume setting."
|
|
(interactive (list last-nonmenu-event))
|
|
(let* ((posn (event-start event))
|
|
(diff
|
|
(if (memq (if (stringp (car-safe (posn-object posn)))
|
|
(aref (car (posn-object posn)) (cdr (posn-object posn)))
|
|
(with-current-buffer (window-buffer (posn-window posn))
|
|
(char-after (posn-point posn))))
|
|
'(?◁ ?<))
|
|
(- mpc-volume-step) mpc-volume-step))
|
|
(newvol (+ (string-to-number (cdr (assq 'volume mpc-status))) diff)))
|
|
(mpc-proc-cmd (list "setvol" newvol) 'mpc-status-refresh)
|
|
(message "Set MPD volume to %s%%" newvol)))
|
|
|
|
(defun mpc-volume-widget (vol &optional size)
|
|
(unless size (setq size 12.5))
|
|
(let ((scaledvol (* (/ vol 100.0) size)))
|
|
;; (message "Volume sizes: %s - %s" (/ vol fact) (/ (- 100 vol) fact))
|
|
(list (propertize "<" ;; "◁"
|
|
;; 'face 'default
|
|
'keymap mpc-volume-map
|
|
'face '(:box (:line-width -2 :style pressed-button))
|
|
'mouse-face '(:box (:line-width -2 :style released-button)))
|
|
" "
|
|
(propertize "a"
|
|
'display (list 'space :width scaledvol)
|
|
'face '(:inverse-video t
|
|
:box (:line-width -2 :style released-button)))
|
|
(propertize "a"
|
|
'display (list 'space :width (- size scaledvol))
|
|
'face '(:box (:line-width -2 :style released-button)))
|
|
" "
|
|
(propertize ">" ;; "▷"
|
|
;; 'face 'default
|
|
'keymap mpc-volume-map
|
|
'face '(:box (:line-width -2 :style pressed-button))
|
|
'mouse-face '(:box (:line-width -2 :style released-button))))))
|
|
|
|
;;; MPC songs mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar mpc-current-song nil) (put 'mpc-current-song 'risky-local-variable t)
|
|
(defvar mpc-current-updating nil) (put 'mpc-current-updating 'risky-local-variable t)
|
|
(defvar mpc-songs-format-description nil) (put 'mpc-songs-format-description 'risky-local-variable t)
|
|
|
|
(defvar mpc-previous-window-config nil)
|
|
|
|
(defvar mpc-songs-mode-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(set-keymap-parent map mpc-mode-map)
|
|
(define-key map [remap mpc-select] 'mpc-songs-jump-to)
|
|
map))
|
|
|
|
(defvar mpc-songpointer-set-visible nil)
|
|
|
|
(defvar mpc-songs-hashcons (make-hash-table :test 'equal :weakness t)
|
|
"Make song file name objects unique via hash consing.
|
|
This is used so that they can be compared with `eq', which is needed for
|
|
`text-property-any'.")
|
|
(defun mpc-songs-hashcons (name)
|
|
(or (gethash name mpc-songs-hashcons) (puthash name name mpc-songs-hashcons)))
|
|
(defcustom mpc-songs-format "%2{Disc--}%3{Track} %-5{Time} %25{Title} %20{Album} %20{Artist} %10{Date}"
|
|
"Format used to display each song in the list of songs."
|
|
:type 'string)
|
|
|
|
(defvar mpc-songs-totaltime)
|
|
|
|
(defun mpc-songs-refresh ()
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'songs)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf
|
|
(let ((constraints (mpc-constraints-get-current (current-buffer)))
|
|
(dontsort nil)
|
|
(inhibit-read-only t)
|
|
(totaltime 0)
|
|
(curline (cons (count-lines (point-min)
|
|
(line-beginning-position))
|
|
(buffer-substring (line-beginning-position)
|
|
(line-end-position))))
|
|
active)
|
|
(setq mpc-songs-playlist nil)
|
|
(if (null constraints)
|
|
;; When there are no constraints, rather than show the list of
|
|
;; all songs (which could take a while to download and
|
|
;; format), we show the current playlist.
|
|
;; FIXME: it would be good to be able to show the complete
|
|
;; list, but that would probably require us to format it
|
|
;; on-the-fly to make it bearable.
|
|
(setq dontsort t
|
|
mpc-songs-playlist t
|
|
active (mpc-proc-buf-to-alists
|
|
(mpc-proc-cmd "playlistinfo")))
|
|
(dolist (cst constraints)
|
|
(if (and (eq (car cst) 'Playlist)
|
|
(= 1 (length (cdr cst))))
|
|
(setq mpc-songs-playlist (cadr cst)))
|
|
;; We don't do anything really special here for playlists,
|
|
;; because it's unclear what's a correct "union" of playlists.
|
|
(let ((vals (apply 'mpc-union
|
|
(mapcar (lambda (val)
|
|
(mpc-cmd-find (car cst) val))
|
|
(cdr cst)))))
|
|
(setq active (cond
|
|
((null active)
|
|
(if (eq (car cst) 'Playlist)
|
|
(setq dontsort t))
|
|
vals)
|
|
((or dontsort
|
|
;; Try to preserve ordering and
|
|
;; repetitions from playlists.
|
|
(not (eq (car cst) 'Playlist)))
|
|
(mpc-intersection active vals
|
|
(lambda (x) (assq 'file x))))
|
|
(t
|
|
(setq dontsort t)
|
|
(mpc-intersection vals active
|
|
(lambda (x)
|
|
(assq 'file x)))))))))
|
|
(mpc-select-save
|
|
(erase-buffer)
|
|
;; Sorting songs is surprisingly difficult: when comparing two
|
|
;; songs with the same album name but different artist name, you
|
|
;; have to know whether these are two different albums (with the
|
|
;; same name) or a single album (typically a compilation).
|
|
;; I punt on it and just use file-name sorting, which does the
|
|
;; right thing if your library is properly arranged.
|
|
(dolist (song (if dontsort active
|
|
(sort active
|
|
(lambda (song1 song2)
|
|
(let ((cmp (mpc-compare-strings
|
|
(cdr (assq 'file song1))
|
|
(cdr (assq 'file song2)))))
|
|
(and (integerp cmp) (< cmp 0)))))))
|
|
(incf totaltime (string-to-number (or (cdr (assq 'Time song)) "0")))
|
|
(mpc-format mpc-songs-format song)
|
|
(delete-char (- (skip-chars-backward " "))) ;Remove trailing space.
|
|
(insert "\n")
|
|
(put-text-property
|
|
(line-beginning-position 0) (line-beginning-position)
|
|
'mpc-file (mpc-songs-hashcons (cdr (assq 'file song))))
|
|
(let ((pos (assq 'Pos song)))
|
|
(if pos
|
|
(put-text-property
|
|
(line-beginning-position 0) (line-beginning-position)
|
|
'mpc-file-pos (string-to-number (cdr pos)))))
|
|
))
|
|
(goto-char (point-min))
|
|
(forward-line (car curline))
|
|
(if (or (search-forward (cdr curline) nil t)
|
|
(search-backward (cdr curline) nil t))
|
|
(beginning-of-line)
|
|
(goto-char (point-min)))
|
|
(set (make-local-variable 'mpc-songs-totaltime)
|
|
(unless (zerop totaltime)
|
|
(list " " (mpc-secs-to-time totaltime))))
|
|
))))
|
|
(let ((mpc-songpointer-set-visible t))
|
|
(mpc-songpointer-refresh)))
|
|
|
|
(defun mpc-songs-search (string)
|
|
"Filter songs to those who include STRING in their metadata."
|
|
(interactive "sSearch for: ")
|
|
(setq mpc--song-search
|
|
(if (zerop (length string)) nil string))
|
|
(let ((mpc--changed-selection t))
|
|
(while mpc--changed-selection
|
|
(setq mpc--changed-selection nil)
|
|
(dolist (buf (process-get (mpc-proc) 'buffers))
|
|
(setq buf (cdr buf))
|
|
(when (buffer-local-value 'mpc-tag buf)
|
|
(with-current-buffer buf (mpc-reorder))))
|
|
(mpc-songs-refresh))))
|
|
|
|
(defun mpc-songs-kill-search ()
|
|
"Turn off the current search restriction."
|
|
(interactive)
|
|
(mpc-songs-search nil))
|
|
|
|
(defun mpc-songs-selection ()
|
|
"Return the list of songs currently selected."
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'songs)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf
|
|
(save-excursion
|
|
(let ((files ()))
|
|
(if mpc-select
|
|
(dolist (ol mpc-select)
|
|
(push (cons
|
|
(get-text-property (overlay-start ol) 'mpc-file)
|
|
(get-text-property (overlay-start ol) 'mpc-file-pos))
|
|
files))
|
|
(goto-char (point-min))
|
|
(while (not (eobp))
|
|
(push (cons
|
|
(get-text-property (point) 'mpc-file)
|
|
(get-text-property (point) 'mpc-file-pos))
|
|
files)
|
|
(forward-line 1)))
|
|
(nreverse files)))))))
|
|
|
|
(defun mpc-songs-jump-to (song-file &optional posn)
|
|
"Jump to song SONG-FILE; interactively, this is the song at point."
|
|
(interactive
|
|
(let* ((event last-nonmenu-event)
|
|
(posn (event-end event)))
|
|
(with-selected-window (posn-window posn)
|
|
(goto-char (posn-point posn))
|
|
(list (get-text-property (point) 'mpc-file)
|
|
posn))))
|
|
(let* ((plbuf (mpc-proc-cmd "playlist"))
|
|
(re (if song-file
|
|
(concat "^\\([0-9]+\\):" (regexp-quote song-file) "$")))
|
|
(sn (with-current-buffer plbuf
|
|
(goto-char (point-min))
|
|
(when (and re (re-search-forward re nil t))
|
|
(match-string 1)))))
|
|
(cond
|
|
((null re) (posn-set-point posn))
|
|
((null sn) (error "This song is not in the playlist"))
|
|
((null (with-current-buffer plbuf (re-search-forward re nil t)))
|
|
;; song-file only appears once in the playlist: no ambiguity,
|
|
;; we're good to go!
|
|
(mpc-proc-cmd (list "play" sn)))
|
|
(t
|
|
;; The song appears multiple times in the playlist. If the current
|
|
;; buffer holds not only the destination song but also the current
|
|
;; song, then we will move in the playlist to the same relative
|
|
;; position as in the buffer. Otherwise, we will simply choose the
|
|
;; song occurrence closest to the current song.
|
|
(with-selected-window (posn-window posn)
|
|
(let* ((cur (and (markerp overlay-arrow-position)
|
|
(marker-position overlay-arrow-position)))
|
|
(dest (save-excursion
|
|
(goto-char (posn-point posn))
|
|
(line-beginning-position)))
|
|
(lines (when cur (* (if (< cur dest) 1 -1)
|
|
(count-lines cur dest)))))
|
|
(with-current-buffer plbuf
|
|
(goto-char (point-min))
|
|
;; Start the search from the current song.
|
|
(forward-line (string-to-number
|
|
(or (cdr (assq 'song mpc-status)) "0")))
|
|
;; If the current song is also displayed in the buffer,
|
|
;; then try to move to the same relative position.
|
|
(if lines (forward-line lines))
|
|
;; Now search the closest occurrence.
|
|
(let* ((next (save-excursion
|
|
(when (re-search-forward re nil t)
|
|
(cons (point) (match-string 1)))))
|
|
(prev (save-excursion
|
|
(when (re-search-backward re nil t)
|
|
(cons (point) (match-string 1)))))
|
|
(sn (cdr (if (and next prev)
|
|
(if (< (- (car next) (point))
|
|
(- (point) (car prev)))
|
|
next prev)
|
|
(or next prev)))))
|
|
(assert sn)
|
|
(mpc-proc-cmd (concat "play " sn))))))))))
|
|
|
|
(define-derived-mode mpc-songs-mode mpc-mode "MPC-song"
|
|
(setq mpc-songs-format-description
|
|
(with-temp-buffer (mpc-format mpc-songs-format 'self) (buffer-string)))
|
|
(set (make-local-variable 'header-line-format)
|
|
;; '("MPC " mpc-volume " " mpc-current-song)
|
|
(list (propertize " " 'display '(space :align-to 0))
|
|
;; 'mpc-songs-format-description
|
|
'(:eval
|
|
(let ((hscroll (window-hscroll)))
|
|
(with-temp-buffer
|
|
(mpc-format mpc-songs-format 'self hscroll)
|
|
;; That would be simpler than the hscroll handling in
|
|
;; mpc-format, but currently move-to-column does not
|
|
;; recognize :space display properties.
|
|
;; (move-to-column hscroll)
|
|
;; (delete-region (point-min) (point))
|
|
(buffer-string))))))
|
|
(set (make-local-variable 'mode-line-format)
|
|
'("%e" mode-line-frame-identification mode-line-buffer-identification
|
|
#(" " 0 3
|
|
(help-echo "mouse-1: Select (drag to resize)\nmouse-2: Make current window occupy the whole frame\nmouse-3: Remove current window from display"))
|
|
mode-line-position
|
|
#(" " 0 2
|
|
(help-echo "mouse-1: Select (drag to resize)\nmouse-2: Make current window occupy the whole frame\nmouse-3: Remove current window from display"))
|
|
mpc-songs-totaltime
|
|
mpc-current-updating
|
|
#(" " 0 2
|
|
(help-echo "mouse-1: Select (drag to resize)\nmouse-2: Make current window occupy the whole frame\nmouse-3: Remove current window from display"))
|
|
(mpc--song-search
|
|
(:propertize
|
|
("Search=\"" mpc--song-search "\"")
|
|
help-echo "mouse-2: kill this search"
|
|
follow-link t
|
|
mouse-face mode-line-highlight
|
|
keymap (keymap (mode-line keymap
|
|
(mouse-2 . mpc-songs-kill-search))))
|
|
(:propertize "NoSearch"
|
|
help-echo "mouse-2: set a search restriction"
|
|
follow-link t
|
|
mouse-face mode-line-highlight
|
|
keymap (keymap (mode-line keymap (mouse-2 . mpc-songs-search)))))))
|
|
|
|
;; (set (make-local-variable 'mode-line-process)
|
|
;; '("" ;; mpc-volume " "
|
|
;; mpc-songs-totaltime
|
|
;; mpc-current-updating))
|
|
)
|
|
|
|
(defun mpc-songpointer-set (pos)
|
|
(let* ((win (get-buffer-window (current-buffer) t))
|
|
(visible (when win
|
|
(or mpc-songpointer-set-visible
|
|
(and (markerp overlay-arrow-position)
|
|
(eq (marker-buffer overlay-arrow-position)
|
|
(current-buffer))
|
|
(<= (window-start win) overlay-arrow-position)
|
|
(< overlay-arrow-position (window-end win)))))))
|
|
(unless (local-variable-p 'overlay-arrow-position)
|
|
(set (make-local-variable 'overlay-arrow-position) (make-marker)))
|
|
(move-marker overlay-arrow-position pos)
|
|
;; If the arrow was visible, try to keep it that way.
|
|
(if (and visible pos
|
|
(or (> (window-start win) pos) (>= pos (window-end win t))))
|
|
(set-window-point win pos))))
|
|
|
|
(defun mpc-songpointer-refresh ()
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'songs)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf
|
|
(let* ((pos (text-property-any
|
|
(point-min) (point-max)
|
|
'mpc-file (mpc-songs-hashcons
|
|
(cdr (assq 'file mpc-status)))))
|
|
(other (when pos
|
|
(save-excursion
|
|
(goto-char pos)
|
|
(text-property-any
|
|
(line-beginning-position 2) (point-max)
|
|
'mpc-file (mpc-songs-hashcons
|
|
(cdr (assq 'file mpc-status))))))))
|
|
(if other
|
|
;; The song appears multiple times in the buffer.
|
|
;; We need to be careful to choose the right occurrence.
|
|
(mpc-proc-cmd "playlist" 'mpc-songpointer-refresh-hairy)
|
|
(mpc-songpointer-set pos)))))))
|
|
|
|
(defun mpc-songpointer-context (size plbuf)
|
|
(with-current-buffer plbuf
|
|
(goto-char (point-min))
|
|
(forward-line (string-to-number (or (cdr (assq 'song mpc-status)) "0")))
|
|
(let ((context-before '())
|
|
(context-after '()))
|
|
(save-excursion
|
|
(dotimes (_i size)
|
|
(when (re-search-backward "^[0-9]+:\\(.*\\)" nil t)
|
|
(push (mpc-songs-hashcons (match-string 1)) context-before))))
|
|
;; Skip the actual current song.
|
|
(forward-line 1)
|
|
(dotimes (_i size)
|
|
(when (re-search-forward "^[0-9]+:\\(.*\\)" nil t)
|
|
(push (mpc-songs-hashcons (match-string 1)) context-after)))
|
|
;; If there isn't `size' context, then return nil.
|
|
(unless (and (< (length context-before) size)
|
|
(< (length context-after) size))
|
|
(cons (nreverse context-before) (nreverse context-after))))))
|
|
|
|
(defun mpc-songpointer-score (context pos)
|
|
(let ((count 0))
|
|
(goto-char pos)
|
|
(dolist (song (car context))
|
|
(and (zerop (forward-line -1))
|
|
(eq (get-text-property (point) 'mpc-file) song)
|
|
(incf count)))
|
|
(goto-char pos)
|
|
(dolist (song (cdr context))
|
|
(and (zerop (forward-line 1))
|
|
(eq (get-text-property (point) 'mpc-file) song)
|
|
(incf count)))
|
|
count))
|
|
|
|
(defun mpc-songpointer-refresh-hairy ()
|
|
;; Based on the complete playlist, we should figure out where in the
|
|
;; song buffer is the currently playing song.
|
|
(let ((plbuf (current-buffer))
|
|
(buf (mpc-proc-buffer (mpc-proc) 'songs)))
|
|
(when (buffer-live-p buf)
|
|
(with-current-buffer buf
|
|
(let* ((context-size 0)
|
|
(context '(() . ()))
|
|
(pos (text-property-any
|
|
(point-min) (point-max)
|
|
'mpc-file (mpc-songs-hashcons
|
|
(cdr (assq 'file mpc-status)))))
|
|
(score 0)
|
|
(other pos))
|
|
(while
|
|
(setq other
|
|
(save-excursion
|
|
(goto-char other)
|
|
(text-property-any
|
|
(line-beginning-position 2) (point-max)
|
|
'mpc-file (mpc-songs-hashcons
|
|
(cdr (assq 'file mpc-status))))))
|
|
;; There is an `other' contestant.
|
|
(let ((other-score (mpc-songpointer-score context other)))
|
|
(cond
|
|
;; `other' is worse: try the next one.
|
|
((< other-score score) nil)
|
|
;; `other' is better: remember it and then search further.
|
|
((> other-score score)
|
|
(setq pos other)
|
|
(setq score other-score))
|
|
;; Both are equal and increasing the context size won't help.
|
|
;; Arbitrarily choose one of the two and keep looking
|
|
;; for a better match.
|
|
((< score context-size) nil)
|
|
(t
|
|
;; Score is equal and increasing context might help: try it.
|
|
(incf context-size)
|
|
(let ((new-context
|
|
(mpc-songpointer-context context-size plbuf)))
|
|
(if (null new-context)
|
|
;; There isn't more context: choose one arbitrarily
|
|
;; and keep looking for a better match elsewhere.
|
|
(decf context-size)
|
|
(setq context new-context)
|
|
(setq score (mpc-songpointer-score context pos))
|
|
(save-excursion
|
|
(goto-char other)
|
|
;; Go back one line so we find `other' again.
|
|
(setq other (line-beginning-position 0)))))))))
|
|
(mpc-songpointer-set pos))))))
|
|
|
|
(defun mpc-current-refresh ()
|
|
;; Maintain the current data.
|
|
(mpc-status-buffer-refresh)
|
|
(setq mpc-current-updating
|
|
(if (assq 'updating_db mpc-status) " Updating-DB"))
|
|
(ignore-errors
|
|
(setq mpc-current-song
|
|
(when (assq 'file mpc-status)
|
|
(concat " "
|
|
(mpc-secs-to-time (cdr (assq 'time mpc-status)))
|
|
" "
|
|
(cdr (assq 'Title mpc-status))
|
|
" ("
|
|
(cdr (assq 'Artist mpc-status))
|
|
" / "
|
|
(cdr (assq 'Album mpc-status))
|
|
")"))))
|
|
(force-mode-line-update t))
|
|
|
|
(defun mpc-songs-buf ()
|
|
(let ((buf (mpc-proc-buffer (mpc-proc) 'songs)))
|
|
(if (buffer-live-p buf) buf
|
|
(with-current-buffer (setq buf (get-buffer-create "*MPC-Songs*"))
|
|
(mpc-proc-buffer (mpc-proc) 'songs buf)
|
|
(mpc-songs-mode)
|
|
buf))))
|
|
|
|
(defun mpc-update ()
|
|
"Tell MPD to refresh its database."
|
|
(interactive)
|
|
(mpc-cmd-update))
|
|
|
|
(defun mpc-quit ()
|
|
"Quit Music Player Daemon."
|
|
(interactive)
|
|
(let* ((proc mpc-proc)
|
|
(bufs (mapcar 'cdr (if proc (process-get proc 'buffers))))
|
|
(wins (mapcar (lambda (buf) (get-buffer-window buf 0)) bufs))
|
|
(song-buf (mpc-songs-buf))
|
|
frames)
|
|
;; Collect all the frames where MPC buffers appear.
|
|
(dolist (win wins)
|
|
(when (and win (not (memq (window-frame win) frames)))
|
|
(push (window-frame win) frames)))
|
|
(if (and frames song-buf
|
|
(with-current-buffer song-buf mpc-previous-window-config))
|
|
(progn
|
|
(select-frame (car frames))
|
|
(set-window-configuration
|
|
(with-current-buffer song-buf mpc-previous-window-config)))
|
|
;; Now delete the ones that show nothing else than MPC buffers.
|
|
(dolist (frame frames)
|
|
(let ((delete t))
|
|
(dolist (win (window-list frame))
|
|
(unless (memq (window-buffer win) bufs) (setq delete nil)))
|
|
(if delete (ignore-errors (delete-frame frame))))))
|
|
;; Then kill the buffers.
|
|
(mapc 'kill-buffer bufs)
|
|
(mpc-status-stop)
|
|
(if proc (delete-process proc))))
|
|
|
|
(defun mpc-stop ()
|
|
"Stop playing the current queue of songs."
|
|
(interactive)
|
|
(mpc-cmd-stop)
|
|
(mpc-cmd-clear)
|
|
(mpc-status-refresh))
|
|
|
|
(defun mpc-pause ()
|
|
"Pause playing."
|
|
(interactive)
|
|
(mpc-cmd-pause "1"))
|
|
|
|
(defun mpc-resume ()
|
|
"Resume playing."
|
|
(interactive)
|
|
(mpc-cmd-pause "0"))
|
|
|
|
(defun mpc-play ()
|
|
"Start playing whatever is selected."
|
|
(interactive)
|
|
(if (member (cdr (assq 'state (mpc-cmd-status))) '("pause"))
|
|
(mpc-resume)
|
|
;; When playing the playlist ends, the playlist isn't cleared, but the
|
|
;; user probably doesn't want to re-listen to it before getting to
|
|
;; listen to what he just selected.
|
|
;; (if (member (cdr (assq 'state (mpc-cmd-status))) '("stop"))
|
|
;; (mpc-cmd-clear))
|
|
;; Actually, we don't use mpc-play to append to the playlist any more,
|
|
;; so we can just always empty the playlist.
|
|
(mpc-cmd-clear)
|
|
(if (mpc-playlist-add)
|
|
(if (member (cdr (assq 'state (mpc-cmd-status))) '("stop"))
|
|
(mpc-cmd-play))
|
|
(error "Don't know what to play"))))
|
|
|
|
(defun mpc-next ()
|
|
"Jump to the next song in the queue."
|
|
(interactive)
|
|
(mpc-proc-cmd "next")
|
|
(mpc-status-refresh))
|
|
|
|
(defun mpc-prev ()
|
|
"Jump to the beginning of the current song, or to the previous song."
|
|
(interactive)
|
|
(let ((time (cdr (assq 'time mpc-status))))
|
|
;; Here we rely on the fact that string-to-number silently ignores
|
|
;; everything after a non-digit char.
|
|
(cond
|
|
;; Go back to the beginning of current song.
|
|
((and time (> (string-to-number time) 0))
|
|
(mpc-proc-cmd (list "seekid" (cdr (assq 'songid mpc-status)) 0)))
|
|
;; We're at the beginning of the first song of the playlist.
|
|
;; Fetch the previous one from `mpc-queue-back'.
|
|
;; ((and (zerop (string-to-number (cdr (assq 'song mpc-status))))
|
|
;; mpc-queue-back)
|
|
;; ;; Because we use cmd-list rather than cmd-play, the queue is not
|
|
;; ;; automatically updated.
|
|
;; (let ((prev (pop mpc-queue-back)))
|
|
;; (push prev mpc-queue)
|
|
;; (mpc-proc-cmd
|
|
;; (mpc-proc-cmd-list
|
|
;; (list (list "add" prev)
|
|
;; (list "move" (cdr (assq 'playlistlength mpc-status)) "0")
|
|
;; "previous")))))
|
|
;; We're at the beginning of a song, but not the first one.
|
|
(t (mpc-proc-cmd "previous")))
|
|
(mpc-status-refresh)))
|
|
|
|
(defvar mpc-last-seek-time '(0 . 0))
|
|
|
|
(defun mpc--faster (event speedup step)
|
|
"Fast forward."
|
|
(interactive (list last-nonmenu-event))
|
|
(let ((repeat-delay (/ (abs (float step)) speedup)))
|
|
(if (not (memq 'down (event-modifiers event)))
|
|
(let* ((currenttime (float-time))
|
|
(last-time (- currenttime (car mpc-last-seek-time))))
|
|
(if (< last-time (* 0.9 repeat-delay))
|
|
nil ;; Trottle
|
|
(let* ((status (if (< last-time 1.0)
|
|
mpc-status (mpc-cmd-status)))
|
|
(songid (cdr (assq 'songid status)))
|
|
(time (if songid
|
|
(if (< last-time 1.0)
|
|
(cdr mpc-last-seek-time)
|
|
(string-to-number
|
|
(cdr (assq 'time status)))))))
|
|
(setq mpc-last-seek-time
|
|
(cons currenttime (setq time (+ time step))))
|
|
(mpc-proc-cmd (list "seekid" songid time)
|
|
'mpc-status-refresh))))
|
|
(let ((status (mpc-cmd-status)))
|
|
(let* ((songid (cdr (assq 'songid status)))
|
|
(time (if songid (string-to-number
|
|
(cdr (assq 'time status))))))
|
|
(let ((timer (run-with-timer
|
|
t repeat-delay
|
|
(lambda ()
|
|
(mpc-proc-cmd (list "seekid" songid
|
|
(setq time (+ time step)))
|
|
'mpc-status-refresh)))))
|
|
(while (mouse-movement-p
|
|
(event-basic-type (setq event (read-event)))))
|
|
(cancel-timer timer)))))))
|
|
|
|
(defvar mpc--faster-toggle-timer nil)
|
|
(defun mpc--faster-stop ()
|
|
(when mpc--faster-toggle-timer
|
|
(cancel-timer mpc--faster-toggle-timer)
|
|
(setq mpc--faster-toggle-timer nil)))
|
|
|
|
(defun mpc--faster-toggle-refresh ()
|
|
(if (equal (cdr (assq 'state mpc-status)) "stop")
|
|
(mpc--faster-stop)))
|
|
|
|
(defun mpc--songduration ()
|
|
(string-to-number
|
|
(let ((s (cdr (assq 'time mpc-status))))
|
|
(if (not (string-match ":" s))
|
|
(error "Unexpected time format %S" s)
|
|
(substring s (match-end 0))))))
|
|
|
|
(defvar mpc--faster-toggle-forward nil)
|
|
(defvar mpc--faster-acceleration 0.5)
|
|
(defun mpc--faster-toggle (speedup step)
|
|
(setq speedup (float speedup))
|
|
(if mpc--faster-toggle-timer
|
|
(mpc--faster-stop)
|
|
(mpc-status-refresh) (mpc-proc-sync)
|
|
(let* (songid ;The ID of the currently ffwd/rewinding song.
|
|
songduration ;The duration of that song.
|
|
songtime ;The time of the song last time we ran.
|
|
oldtime ;The timeoftheday last time we ran.
|
|
prevsongid) ;The song we're in the process leaving.
|
|
(let ((fun
|
|
(lambda ()
|
|
(let ((newsongid (cdr (assq 'songid mpc-status))))
|
|
|
|
(if (and (equal prevsongid newsongid)
|
|
(not (equal prevsongid songid)))
|
|
;; We left prevsongid and came back to it. Pretend it
|
|
;; didn't happen.
|
|
(setq newsongid songid))
|
|
|
|
(cond
|
|
((null newsongid) (mpc--faster-stop))
|
|
((not (equal songid newsongid))
|
|
;; We jumped to another song: reset.
|
|
(setq songid newsongid)
|
|
(setq songtime (string-to-number
|
|
(cdr (assq 'time mpc-status))))
|
|
(setq songduration (mpc--songduration))
|
|
(setq oldtime (float-time)))
|
|
((and (>= songtime songduration) mpc--faster-toggle-forward)
|
|
;; Skip to the beginning of the next song.
|
|
(if (not (equal (cdr (assq 'state mpc-status)) "play"))
|
|
(mpc-proc-cmd "next" 'mpc-status-refresh)
|
|
;; If we're playing, this is done automatically, so we
|
|
;; don't need to do anything, or rather we *shouldn't*
|
|
;; do anything otherwise there's a race condition where
|
|
;; we could skip straight to the next next song.
|
|
nil))
|
|
((and (<= songtime 0) (not mpc--faster-toggle-forward))
|
|
;; Skip to the end of the previous song.
|
|
(setq prevsongid songid)
|
|
(mpc-proc-cmd "previous"
|
|
(lambda ()
|
|
(mpc-status-refresh
|
|
(lambda ()
|
|
(setq songid (cdr (assq 'songid mpc-status)))
|
|
(setq songtime (setq songduration (mpc--songduration)))
|
|
(setq oldtime (float-time))
|
|
(mpc-proc-cmd (list "seekid" songid songtime)))))))
|
|
(t
|
|
(setq speedup (+ speedup mpc--faster-acceleration))
|
|
(let ((newstep
|
|
(truncate (* speedup (- (float-time) oldtime)))))
|
|
(if (<= newstep 1) (setq newstep 1))
|
|
(setq oldtime (+ oldtime (/ newstep speedup)))
|
|
(if (not mpc--faster-toggle-forward)
|
|
(setq newstep (- newstep)))
|
|
(setq songtime (min songduration (+ songtime newstep)))
|
|
(unless (>= songtime songduration)
|
|
(condition-case nil
|
|
(mpc-proc-cmd
|
|
(list "seekid" songid songtime)
|
|
'mpc-status-refresh)
|
|
(mpc-proc-error (mpc-status-refresh)))))))))))
|
|
(setq mpc--faster-toggle-forward (> step 0))
|
|
(funcall fun) ;Initialize values.
|
|
(setq mpc--faster-toggle-timer
|
|
(run-with-timer t 0.3 fun))))))
|
|
|
|
|
|
|
|
(defvar mpc-faster-speedup 8)
|
|
|
|
(defun mpc-ffwd (_event)
|
|
"Fast forward."
|
|
(interactive (list last-nonmenu-event))
|
|
;; (mpc--faster event 4.0 1)
|
|
(mpc--faster-toggle mpc-faster-speedup 1))
|
|
|
|
(defun mpc-rewind (_event)
|
|
"Fast rewind."
|
|
(interactive (list last-nonmenu-event))
|
|
;; (mpc--faster event 4.0 -1)
|
|
(mpc--faster-toggle mpc-faster-speedup -1))
|
|
|
|
|
|
(defun mpc-play-at-point (&optional event)
|
|
(interactive (list last-nonmenu-event))
|
|
(mpc-select event)
|
|
(mpc-play))
|
|
|
|
;; (defun mpc-play-tagval ()
|
|
;; "Play all the songs of the tag at point."
|
|
;; (interactive)
|
|
;; (let* ((val (buffer-substring (line-beginning-position) (line-end-position)))
|
|
;; (songs (mapcar 'cdar
|
|
;; (mpc-proc-buf-to-alists
|
|
;; (mpc-proc-cmd (list "find" mpc-tag val))))))
|
|
;; (mpc-cmd-add songs)
|
|
;; (if (member (cdr (assq 'state (mpc-cmd-status))) '("stop"))
|
|
;; (mpc-cmd-play))))
|
|
|
|
;;; Drag'n'drop support ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; Todo:
|
|
;; the main thing to do here, is to provide visual feedback during the drag:
|
|
;; - change the mouse-cursor.
|
|
;; - highlight/select the source and the current destination.
|
|
|
|
(defun mpc-drag-n-drop (event)
|
|
"DWIM for a drag EVENT."
|
|
(interactive "e")
|
|
(let* ((start (event-start event))
|
|
(end (event-end event))
|
|
(start-buf (window-buffer (posn-window start)))
|
|
(end-buf (window-buffer (posn-window end)))
|
|
(songs
|
|
(with-current-buffer start-buf
|
|
(goto-char (posn-point start))
|
|
(if (get-text-property (point) 'mpc-select)
|
|
;; FIXME: actually we should only consider the constraints
|
|
;; corresponding to the selection in this particular buffer.
|
|
(mpc-songs-selection)
|
|
(cond
|
|
((and (derived-mode-p 'mpc-songs-mode)
|
|
(get-text-property (point) 'mpc-file))
|
|
(list (cons (get-text-property (point) 'mpc-file)
|
|
(get-text-property (point) 'mpc-file-pos))))
|
|
((and mpc-tag (not (mpc-tagbrowser-all-p)))
|
|
(mapcar (lambda (song)
|
|
(list (cdr (assq 'file song))))
|
|
(mpc-cmd-find
|
|
mpc-tag
|
|
(buffer-substring (line-beginning-position)
|
|
(line-end-position)))))
|
|
(t
|
|
(error "Unsupported starting position for drag'n'drop gesture")))))))
|
|
(with-current-buffer end-buf
|
|
(goto-char (posn-point end))
|
|
(cond
|
|
((eq mpc-tag 'Playlist)
|
|
;; Adding elements to a named playlist.
|
|
(let ((playlist (if (or (mpc-tagbrowser-all-p)
|
|
(and (bolp) (eolp)))
|
|
(error "Not a playlist")
|
|
(buffer-substring (line-beginning-position)
|
|
(line-end-position)))))
|
|
(mpc-cmd-add (mapcar 'car songs) playlist)
|
|
(message "Added %d songs to %s" (length songs) playlist)
|
|
(if (member playlist
|
|
(cdr (assq 'Playlist (mpc-constraints-get-current))))
|
|
(mpc-songs-refresh))))
|
|
((derived-mode-p 'mpc-songs-mode)
|
|
(cond
|
|
((null mpc-songs-playlist)
|
|
(error "The songs shown do not belong to a playlist"))
|
|
((eq start-buf end-buf)
|
|
;; Moving songs within the shown playlist.
|
|
(let ((dest-pos (get-text-property (point) 'mpc-file-pos)))
|
|
(mpc-cmd-move (mapcar 'cdr songs) dest-pos mpc-songs-playlist)
|
|
(message "Moved %d songs" (length songs))))
|
|
(t
|
|
;; Adding songs to the shown playlist.
|
|
(let ((dest-pos (get-text-property (point) 'mpc-file-pos))
|
|
(pl (if (stringp mpc-songs-playlist)
|
|
(mpc-cmd-find 'Playlist mpc-songs-playlist)
|
|
(mpc-proc-cmd-to-alist "playlist"))))
|
|
;; MPD's protocol does not let us add songs at a particular
|
|
;; position in a playlist, so we first have to add them to the
|
|
;; end, and then move them to their final destination.
|
|
(mpc-cmd-add (mapcar 'car songs) mpc-songs-playlist)
|
|
(mpc-cmd-move (let ((poss '()))
|
|
(dotimes (i (length songs))
|
|
(push (+ i (length pl)) poss))
|
|
(nreverse poss)) dest-pos mpc-songs-playlist)
|
|
(message "Added %d songs" (length songs)))))
|
|
(mpc-songs-refresh))
|
|
(t
|
|
(error "Unsupported drag'n'drop gesture"))))))
|
|
|
|
;;; Toplevel ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defcustom mpc-frame-alist '((name . "MPC") (tool-bar-lines . 1)
|
|
(font . "Sans"))
|
|
"Alist of frame parameters for the MPC frame."
|
|
:type 'alist)
|
|
|
|
;;;###autoload
|
|
(defun mpc ()
|
|
"Main entry point for MPC."
|
|
(interactive
|
|
(progn
|
|
(if current-prefix-arg
|
|
(setq mpc-host (read-string "MPD host and port: " nil nil mpc-host)))
|
|
nil))
|
|
(let* ((song-buf (mpc-songs-buf))
|
|
(song-win (get-buffer-window song-buf 0)))
|
|
(if song-win
|
|
(select-window song-win)
|
|
(if (or (window-dedicated-p (selected-window))
|
|
(window-minibuffer-p))
|
|
(ignore-errors (select-frame (make-frame mpc-frame-alist)))
|
|
(with-current-buffer song-buf
|
|
(set (make-local-variable 'mpc-previous-window-config)
|
|
(current-window-configuration))))
|
|
(let* ((win1 (selected-window))
|
|
(win2 (split-window))
|
|
(tags mpc-browser-tags))
|
|
(unless tags (error "Need at least one entry in `mpc-browser-tags'"))
|
|
(set-window-buffer win2 song-buf)
|
|
(set-window-dedicated-p win2 'soft)
|
|
(mpc-status-buffer-show)
|
|
(while
|
|
(progn
|
|
(set-window-buffer win1 (mpc-tagbrowser-buf (pop tags)))
|
|
(set-window-dedicated-p win1 'soft)
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tags)
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(setq win1 (split-window win1 nil 'horiz)))))
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(balance-windows-area))
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(mpc-songs-refresh)
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(mpc-status-refresh))
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(provide 'mpc)
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;;; mpc.el ends here
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