[gnome-music/add_item_speedup: 1/3] Do model.append() in idle_add to speed up element adding

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit 3ea91e2fb06a5be5a4ceace09a1dd63343583aea
Author: Vadim Rutkovsky <vrutkovs redhat com>
Date:   Thu Aug 8 14:17:41 2013 +0200

    Do model.append() in idle_add to speed up element adding

 gnomemusic/view.py |   26 +++++++++++++-------------
 1 files changed, 13 insertions(+), 13 deletions(-)
---
diff --git a/gnomemusic/view.py b/gnomemusic/view.py
index 96166a0..969936f 100644
--- a/gnomemusic/view.py
+++ b/gnomemusic/view.py
@@ -172,28 +172,29 @@ class ViewContainer(Stack):
         if not item:
             return
         self._offset += 1
-        _iter = self._model.append()
         artist = item.get_string(Grl.METADATA_KEY_ARTIST)\
             or item.get_author()\
             or _("Unknown Artist")
         title = albumArtCache.get_media_title(item)
         item.set_title(title)
-        try:
+
+        def add_new_item():
+            _iter = self._model.append()
+            icon_name = self.nowPlayingIconName
             if item.get_url():
-                self.player.discoverer.discover_uri(item.get_url())
-            self._model.set(_iter,
-                            [0, 1, 2, 3, 4, 5, 7, 8, 9, 10],
-                            [str(item.get_id()), '', title,
-                             artist, self._symbolicIcon, item,
-                             -1, self.nowPlayingIconName, False, False])
-        except:
-            print('failed to discover url ' + item.get_url())
+                try:
+                    self.player.discoverer.discover_uri(item.get_url())
+                except:
+                    print('failed to discover url ' + item.get_url())
+                    icon_name = self.errorIconName
             self._model.set(_iter,
                             [0, 1, 2, 3, 4, 5, 7, 8, 9, 10],
                             [str(item.get_id()), '', title,
                              artist, self._symbolicIcon, item,
-                             -1, self.errorIconName, False, True])
-        GLib.idle_add(self._update_album_art, item, _iter)
+                             -1, icon_name, False, icon_name == self.errorIconName])
+            GLib.idle_add(self._update_album_art, item, _iter)
+
+        GLib.idle_add(add_new_item)
 
     def _get_remaining_item_count(self):
         count = -1
@@ -214,7 +215,6 @@ class ViewContainer(Stack):
                 self._on_lookup_ready, itr)
 
     def _update_album_art(self, item, itr):
-        self._insert_album_art(item, item, itr)
         grilo.get_album_art_for_album_id(
             item.get_id(),
             lambda source, count, cb_item, x, y, z: