libsaria: Introduce libsaria.sources.all_attrs()

This patch introduces a new function "all_attrs()" which will return a
dictionary containing all the attributes for the current song.  To help
the gui, I pass this dictionary during an on_load() callback.

libsaria/callbacks.py

@@ -15,7 +15,8 @@ def pause():
 
 on_load = null_cb
 def load_file(file):
-	on_load(file)
+	attrs = libsaria.sources.all_attrs()
+	on_load(file, attrs)
 
 on_like = null_cb
 def like_song(like):

libsaria/sources/__init__.py

@@ -36,6 +36,16 @@ def find_attrs(file, *attr_list):
 			res.append(get(attr))
 	return res
 
+def find_all_attrs(file, attrs):
+	if file == None:
+		return False
+	track = library.track.Track(file)
+	if track == None:
+		return False
+	id = library.update.song_id(file)
+	attrs.update(track.__dict__)
+	attrs["id"] = id
+
 # Function pointer to avoid unnecessary lookups for a common function
 get_attrs_id = library.get_attrs
 
@@ -53,6 +63,21 @@ def get_attrs(*attrs):
 		res = [None] * len(attrs)
 	return res
 
+def all_attrs():
+	global cur_id
+	res   = {}
+	found = True
+	if cur_id:
+		found = library.all_attrs(cur_id, res)
+	if found == False:
+		cur_id = None
+		file   = libsaria.audio.get_cur_file()
+		found  = find_all_attrs(file, res)
+	if found != False:
+		res["like"]  = attrs.get_like("like")
+		res["count"] = attrs.get_count("count")
+	return res
+
 def filter(text):
 	visible = library.filter(text)
 	playlist.set_visible(visible)

libsaria/sources/attrs.py

@@ -36,6 +36,9 @@ def set_dattr(id, attribute, value):
 	save_dattrs()
 	unlock_dattrs()
 
+def get_like(id):
+	return get_dattr(id, "like")
+
 def get_count(id):
 	count = get_dattr(id, "count")
 	if count != None:

libsaria/sources/library/__init__.py

@@ -9,6 +9,7 @@ import index
 # Function pointers for conveniance
 add_path    = library.add_path
 get_attrs   = library.get_attrs
+all_attrs   = library.all_attrs
 list_ids    = tree.list_ids
 filter      = index.filter
 is_visible  = index.is_visible

libsaria/sources/library/library.py

@@ -74,3 +74,13 @@ def get_attrs(id, *attrs):
 	unlock_library()
 	return res
 
+def all_attrs(id, attrs):
+	lock_library()
+	found = False
+	track = find_id(id)
+	if track != None:
+		attrs.update(track.__dict__)
+		attrs["id"] = id
+		found = True
+	unlock_library()
+	return found

ocarina/callbacks.py

@@ -16,7 +16,7 @@ def on_pause():
 	footer.on_pause()
 callbacks.on_pause = on_pause
 
-def on_load(file):
+def on_load(file, attrs):
 	footer.on_load()
 	queue.refresh()
 	body.cur_page_goto()