ocarina: Use album art as window icon

This is an experimental feature for now, since I don't know how well
it'll work yet.  The user should always have the option to disable this
feature, even when it works its way out of experimental.

ocarina/callbacks.py

@@ -9,6 +9,7 @@ from ocarina import body
 from ocarina import settings
 from ocarina.body import footer
 from libsaria import callbacks
+import window
 import playlist
 import library
 
@@ -24,6 +25,7 @@ def on_load(file, attrs):
 	footer.on_load(attrs)
 	queue.refresh()
 	body.cur_page_goto()
+	window.set_icon(attrs["art"])
 callbacks.on_load = on_load
 
 def on_like(like):
@@ -41,6 +43,7 @@ gobject.signal_new("get_art", gobject.GObject, gobject.SIGNAL_RUN_LAST,
 def on_get_art_helper(obj, id, path):
 	if id == libsaria.sources.get_cur_id():
 		footer.set_art(path)
+		window.set_icon(path)
 
 on_get_art_obj = gobject.GObject()
 on_get_art_obj.connect("get_art", on_get_art_helper)

ocarina/settings/experimental.py

@@ -2,6 +2,7 @@
 
 import gtk
 import libsaria
+from ocarina import window
 
 page = gtk.VBox()
 text = "Experimental"
@@ -16,6 +17,8 @@ def make_check_button(text, func, active):
 	return button
 
 SERVER = make_check_button("Enable web server", libsaria.server.toggle_state, libsaria.server.get_state())
+WINDOW_ART = make_check_button("Use album art as window icon", window.toggle_art_icon, window.get_art_icon_state())
 
 page.pack_start(SERVER, False, False)
+page.pack_start(WINDOW_ART, False, False)
 page.show_all()

ocarina/window.py

@@ -31,7 +31,20 @@ def set_title(new_title = None):
 	window.set_title(new_title)
 set_title()
 
+def get_art_icon_state():
+	return libsaria.prefs.get("ocarina.window.articon")
+
+def toggle_art_icon(newval):
+	libsaria.prefs.set("ocarina.window.articon", newval)
+	icon = "images/ocarina.png"
+	if newval == True:
+		icon = libsaria.sources.all_attrs()["art"]
+	set_icon(icon)
+libsaria.prefs.init("ocarina.window.articon", False)
+
 def set_icon(icon = "images/ocarina.png"):
+	if (icon != "images/ocarina.png") and (get_art_icon_state() == False):
+		icon = "images/ocarina.png"
 	window.set_icon_from_file(icon)
 set_icon()