Use py3-cmd to update bar

i3/config

@@ -265,9 +265,13 @@ bindsym $mod+F9 exec --no-startup-id evolution
 ################################################################################
 
 bindsym XF86Sleep exec --no-startup-id $scriptdir/i3exit suspend
-bindsym XF86AudioMute exec --no-startup-id amixer set Master toggle ; exec --no-startup-id $update-status
-bindsym XF86AudioRaiseVolume exec --no-startup-id $scriptdir/pa-volume set-vol +5 ; exec --no-startup-id $scriptdir/update-status
-bindsym XF86AudioLowerVolume exec --no-startup-id $scriptdir/pa-volume set-vol -5 ; exec --no-startup-id $scriptdir/update-status
+bindsym XF86AudioMute exec --no-startup-id $scriptdir/pa-volume mute-toggle
+bindsym XF86AudioRaiseVolume exec --no-startup-id $scriptdir/pa-volume set-vol +3
+bindsym XF86AudioLowerVolume exec --no-startup-id $scriptdir/pa-volume set-vol -3
+
+bindsym XF86AudioPlay exec dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.PlayPause
+bindsym XF86AudioNext exec dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Next
+bindsym XF86AudioPrev exec dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Previous
 
 # keys seemingly switched
 bindsym XF86MonBrightnessUp   exec --no-startup-id xbacklight -dec 5 ; exec --no-startup-id $scriptdir/update-status

i3/scripts/bar-update

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [[ "$1" ]] ; then
+    modules="$1"
+else
+    modules=all
+fi
+
+py3-cmd refresh "$modules"

i3/scripts/pa-volume

@@ -75,6 +75,10 @@ usage() {
     echo "$0 set-vol VOL_PERC"
 }
 
+update_status_bar() {
+    ~/.i3/scripts/bar-update volume_status
+}
+
 case "$1" in
     "get-vol")
         echo $(getvol)
@@ -85,19 +89,19 @@ case "$1" in
         else
             setvol "$2"
         fi
-        hook="$3"
+        update_status_bar
         ;;
     "mute")
         mute
-        hook="$2"
+        update_status_bar
         ;;
     "unmute")
         unmute
-        hook="$2"
+        update_status_bar
         ;;
     "mute-toggle")
         mute-toggle
-        hook="$2"
+        update_status_bar
         ;;
     "is-muted")
         echo $(ismuted)
@@ -109,8 +113,3 @@ case "$1" in
         usage
         ;;
 esac
-
-if [[ -n "$hook" ]] ; then
-    echo "volume changed, executing hook: $hook"
-    $hook
-fi