implemented next and prev, added pkill command for i3blocks on toggle

mpd_controller/mpd_main.py

@@ -8,12 +8,13 @@ from mpd import MPDClient
 import mpd_playback
 import mpd_state
 
+signal_id = 11
 cover_art_temp = '/tmp/mpd_cover_art_temp.jpg'
 
 arguments = sys.argv
 
 if len(arguments) == 1:
-    mpc_command = None
+    mpc_command = 'state'
 elif len(arguments) == 2:
     mpc_command = arguments[1]
 
@@ -28,13 +29,18 @@ def main():
         return
     # follow mpc_command
     if mpc_command == 'toggle':
-        mpd_playback.toggle(client)
-    # show status
-    mpd_state.get_state(client, cover_art_temp)
+        mpd_playback.toggle(client, signal_id)
+    elif mpc_command == 'next':
+        mpd_playback.play_next(client)
+    elif mpc_command == 'prev':
+        mpd_playback.play_prev(client)
+    elif mpc_command == 'state':
+        mpd_state.get_state(client, cover_art_temp)
     # close connection
     client.close()
     client.disconnect()
 
 
+# lunch from here
 if __name__ == '__main__':
     main()

mpd_controller/mpd_playback.py

@@ -1,4 +1,5 @@
 from time import sleep
+import subprocess
 
 def fade(way, current_vol, client):
     """ gracefull fading """
@@ -13,7 +14,7 @@ def fade(way, current_vol, client):
         sleep(0.03)
 
 
-def toggle(client):
+def toggle(client, signal_id):
     """ toggles play status """
     # setup
     client_status = client.status()
@@ -26,4 +27,26 @@ def toggle(client):
         client.setvol(0)
         client.play()
         fade('in', current_vol, client)
+    # call pkill to refresh status bar
+    subprocess.call(["pkill", "-RTMIN+" + str(signal_id), "i3blocks"])
     
+
+def play_next(client):
+    """ skip to next in playlist """
+    client_status = client.status()
+    current_vol = int(client_status['volume'])
+    fade('out', current_vol, client)
+    client.pause()
+    client.setvol(current_vol)
+    client.next()
+
+
+def play_prev(client):
+    """ skip to previous in playlist """
+    client_status = client.status()
+    current_vol = int(client_status['volume'])
+    fade('out', current_vol, client)
+    client.pause()
+    client.setvol(current_vol)
+    client.previous()
+

mpd_controller/mpd_state.py

@@ -47,7 +47,7 @@ def get_state(client, cover_art_temp):
     print_state(artist, album, song_title, mpd_status)
     # send message
     title = icon + '\t' + artist
-    message = album + "-" + song_title
+    message = album + " - " + song_title
     subprocess.call(['notify-send', title, message, '-i', cover_art_temp])
     return