libsaria: Do filtering through sources

This allows me to set filter text and trigger a callback.

libsaria/callbacks.py

@@ -44,3 +44,8 @@ def library_updated():
 on_queue_changed = null_cb
 def queue_changed():
 	on_queue_changed()
+
+on_filter = null_cb
+def refilter():
+	print "filtering..."
+	on_refilter()

libsaria/sources/__init__.py

@@ -1,6 +1,7 @@
 # Bryan Schumaker (8/8/2010)
 
 import libsaria
+from libsaria import callbacks
 exists  = libsaria.path.exists
 expand  = libsaria.path.expand
 
@@ -41,6 +42,10 @@ def get_attrs(*attrs):
 		return library.get_attrs(cur_id, *attrs)
 	return -1
 
+def filter(text):
+	library.filter(text)
+	callbacks.refilter()
+
 def is_visible(id):
 	return library.is_visible(id)