libsaria: Add a load_playlist() callback

Called when playlists are loaded from file.

libsaria/callbacks.py

@@ -28,3 +28,7 @@ def set_volume(prcnt):
 on_get_art = null_cb
 def get_art(file, id):
 	on_get_art(file, id)
+
+on_load_playlist = null_cb
+def load_playlist():
+	on_load_playlist()

libsaria/path/export.py

@@ -4,6 +4,7 @@ import libsaria
 from libsaria import path
 from libsaria.sources import library
 from libsaria.sources import playlist
+from libsaria import callbacks
 import libsaria.xm as xml
 
 add_child = xml.add_child
@@ -62,6 +63,7 @@ def decode_xspf(child):
 		except:
 			pass
 	playlist.save()
+	callbacks.load_playlist()
 
 def encode_xspf(doc, node, id):
 	filepath = get_attrs(id, "filepath")
@@ -193,7 +195,7 @@ def import_xml(file):
 	doc   = xml.parse(fin)
 	child = xml.child(doc)
 	if child.nodeName == "playlist":
-		libsaria.event.call("LOADPLAYLIST", decode_xspf, child)
+		decode_xspf(child)
 	elif child.nodeName == "library":
 		import_library(child)
 

ocarina/callbacks.py

@@ -38,7 +38,7 @@ callbacks.on_get_art = on_get_art
 
 def on_load_playlist(*args):
 	playlist.refresh()
-invite("POSTLOADPLAYLIST", on_load_playlist)
+callbacks.on_load_playlist = on_load_playlist
 
 def on_load_library(*args):
 	library.refresh()