Add support for playerctl in the now_playing segment

Author: IngoMeyer441

segments/now_playing.sh

@@ -9,12 +9,13 @@ TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_HOST_DEFAULT="localhost"
 TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_PORT_DEFAULT="6600"
 TMUX_POWERLINE_SEG_NOW_PLAYING_LASTFM_UPDATE_PERIOD_DEFAULT="30"
 TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_SIMPLE_FORMAT_DEFAULT="%artist% - %title%"
+TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT_DEFAULT="{{ artist }} - {{ title }}"
 TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT_DEFAULT="%aa - %tt"
 TMUX_POWERLINE_SEG_NOW_PLAYING_NOTE_CHAR_DEFAULT="♫"
 
 generate_segmentrc() {
 	read -d '' rccontents  << EORC
-# Music player to use. Can be any of {audacious, banshee, cmus, itunes, lastfm, mocp, mpd, mpd_simple, pithos, rdio, rhythmbox, spotify, spotify_wine, file}.
+# Music player to use. Can be any of {audacious, banshee, cmus, itunes, lastfm, mocp, mpd, mpd_simple, pithos, playerctl, rdio, rhythmbox, spotify, spotify_wine, file}.
 export TMUX_POWERLINE_SEG_NOW_PLAYING_MUSIC_PLAYER=""
 # File to be read in case the song is being read from a file
 export TMUX_POWERLINE_SEG_NOW_PLAYING_FILE_NAME=""
@@ -31,6 +32,8 @@ export TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_HOST="${TMUX_POWERLINE_SEG_NOW_PLAYING
 export TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_PORT="${TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_PORT_DEFAULT}"
 # Song display format for mpd_simple. See mpc(1) for delimiters.
 export TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_SIMPLE_FORMAT="${TMUX_POWERLINE_SEG_NOW_PLAYING_MPD_SIMPLE_FORMAT_DEFAULT}"
+# Song display format for playerctl. see "Format Strings" in playerctl(1).
+export TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT="${TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT_DEFAULT}"
 # Song display format for rhythmbox. see "FORMATS" in rhythmbox-client(1).
 export TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT="${TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT_DEFAULT}"
 
@@ -66,6 +69,7 @@ run_segment() {
 			"mpd_simple")  np=$(__np_mpd_simple) ;;
 			"pithos") np=$(__np_pithos) ;;
 			"rdio")  np=$(__np_rdio) ;;
+			"playerctl")  np=$(__np_playerctl) ;;
 			"rhythmbox")  np=$(__np_rhythmbox) ;;
 			"spotify")  np=$(__np_spotify) ;;
 			"file")  np=$(__np_file) ;;
@@ -121,8 +125,11 @@ __process_settings() {
 	if [ -z "$TMUX_POWERLINE_SEG_NOW_PLAYING_NOTE_CHAR" ]; then
 		export TMUX_POWERLINE_SEG_NOW_PLAYING_NOTE_CHAR="${TMUX_POWERLINE_SEG_NOW_PLAYING_NOTE_CHAR_DEFAULT}"
 	fi
+	if [ -z "$TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT" ]; then
+		export TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT="${TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT_DEFAULT}"
+	fi;
 	if [ -z "$TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT" ]; then
-		export TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT="${TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT}"
+		export TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT="${TMUX_POWERLINE_SEG_NOW_PLAYING_RHYTHMBOX_FORMAT_DEFAULT}"
 	fi;
 }
 
@@ -268,6 +275,13 @@ __np_rhythmbox() {
 	fi
 }
 
+__np_playerctl() {
+	if [ "$(playerctl status)" = "Playing" ]; then
+		np=$(playerctl metadata --format="$TMUX_POWERLINE_SEG_NOW_PLAYING_PLAYERCTL_FORMAT")
+		echo "$np"
+	fi
+}
+
 __np_spotify() {
 	if shell_is_linux; then
 		metadata=$(dbus-send --reply-timeout=42 --print-reply --session --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:'org.mpris.MediaPlayer2.Player' string:'Metadata' 2>/dev/null)