libsaria: Added library getattrs

I search for attributes using the new library first.  If the song isn't
found in the new library, then I fall back on the old library.

libsaria/sources/__init__.py

@@ -78,12 +78,15 @@ def next():
 
 def list_source(list_func, *attrs):
 	ret = []
-	get_attrs = oldlibrary.get_attrs
+	get_attrs = library.get_attrs
 	append    = ret.append
 	for id in list_func():
 		append(get_attrs(id, *attrs))
 	return ret
 
+def list_library(*attrs):
+	return list_source(library.list_ids, *attrs)
+
 def list_playlist(*attrs):
 	return list_source(playlist.list_ids, *attrs)
 

libsaria/sources/library/__init__.py

@@ -5,8 +5,13 @@ import update
 import tree
 
 # Function pointers for conveniance
-add_path = library.add_path
+add_path  = library.add_path
+get_attrs = library.get_attrs
+list_ids  = tree.list_ids
 
 def update_lib():
 	update.update()
 	tree.make_tree()
+
+def num_visible():
+	return library.size()

libsaria/sources/library/library.py

@@ -9,8 +9,40 @@ unlock_library = library_lock.release
 # Map directory -> dict()
 lib_dict = dict()
 
-
 def add_path(path):
 	lock_library()
 	lib_dict.setdefault(path, dict())
 	unlock_library()
+
+def find_id(id):
+	for src, tracks in lib_dict.iteritems():
+		track = tracks.get(id, None)
+		if track != None:
+			return track
+
+def size():
+	res = 0
+	lock_library()
+	for src, tracks in lib_dict.iteritems():
+		res += len(tracks)
+	unlock_library()
+	return res
+
+def get_attrs(id, *attrs):
+	lock_library()
+	track = find_id(id)
+	if track == None:
+		unlock_library()
+		from libsaria.sources import oldlibrary
+		return oldlibrary.get_attrs(id, *attrs)
+
+	get = track.__dict__.get
+	res = []
+	for attr in attrs:
+		if attr == "id":
+			res.append(id)
+		else:
+			res.append(get(attr))
+	unlock_library()
+	return res
+