[gnome-music/wip/mschraal/async-queue: 3/8] artcache: Use AsyncQueue for cache retrieval




commit 62d4208f5ce39992fea97d980f2bb86384e5b2c7
Author: Marinus Schraal <mschraal gnome org>
Date:   Tue Aug 10 15:15:55 2021 +0200

    artcache: Use AsyncQueue for cache retrieval

 gnomemusic/artcache.py         | 3 ++-
 gnomemusic/asyncqueue.py       | 4 ++--
 gnomemusic/widgets/artstack.py | 6 +++++-
 3 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/gnomemusic/artcache.py b/gnomemusic/artcache.py
index 96d266ef9..49f94a3b6 100644
--- a/gnomemusic/artcache.py
+++ b/gnomemusic/artcache.py
@@ -24,7 +24,7 @@
 
 from enum import Enum
 from math import pi
-from typing import Dict, Tuple
+from typing import Dict, Tuple, Union
 
 import cairo
 from gi.repository import Gdk, GdkPixbuf, Gio, Gtk, GLib, GObject
@@ -240,3 +240,4 @@ class ArtCache(GObject.GObject):
         except GLib.Error as error:
             self._log.warning(
                 "Error: {}, {}".format(error.domain, error.message))
+
diff --git a/gnomemusic/asyncqueue.py b/gnomemusic/asyncqueue.py
index 4439cf87a..870ed32cf 100644
--- a/gnomemusic/asyncqueue.py
+++ b/gnomemusic/asyncqueue.py
@@ -22,7 +22,7 @@
 # code, but you are not obligated to do so.  If you do not wish to do so,
 # delete this exception statement from your version.
 
-from typing import Dict, Tuple
+from typing import Any, Dict, Tuple
 
 from gi.repository import GObject
 
@@ -52,7 +52,7 @@ class AsyncQueue(GObject.GObject):
         self._async_active_pool: Dict[int, Tuple] = {}
         self._max_async = 4
 
-    def queue(self, *args) -> None:
+    def queue(self, *args: Any) -> None:
         """Queue an async call
         """
         async_obj = args[0]
diff --git a/gnomemusic/widgets/artstack.py b/gnomemusic/widgets/artstack.py
index 9a6a87c46..5d0dda198 100644
--- a/gnomemusic/widgets/artstack.py
+++ b/gnomemusic/widgets/artstack.py
@@ -24,6 +24,7 @@
 
 from gi.repository import GObject, Gtk
 
+from gnomemusic.asyncqueue import AsyncQueue
 from gnomemusic.artcache import ArtCache
 from gnomemusic.utils import ArtSize
 
@@ -38,6 +39,8 @@ class ArtStack(Gtk.Stack):
 
     __gtype_name__ = "ArtStack"
 
+    _async_queue = AsyncQueue()
+
     def __init__(self, size=ArtSize.MEDIUM):
         """Initialize the ArtStack
 
@@ -104,7 +107,8 @@ class ArtStack(Gtk.Stack):
 
         self._handler_id = self._cache.connect("result", self._on_cache_result)
 
-        self._cache.query(coreobject, self._size, self.props.scale_factor)
+        self._async_queue.queue(
+            self._cache, coreobject, self._size, self.props.scale_factor)
 
     def _on_cache_result(self, cache, surface):
         if self.props.visible_child_name == "B":


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