[gnome-shell/gbsneto/fix-frequent-view-clones] iconGrid: Only animate allocated icons

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 04f26d48762d6529ba54cca73358db3ea40ac3c5
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sat Aug 31 12:32:31 2019 -0300

    iconGrid: Only animate allocated icons
    
    Mutter recently added an optimization to only allocate
    visible children [1]. That broke ClutterClones, but it
    was subsequently fixed [2].
    
    However, that exposed a third problem, this time with
    FrequentView: non-allocated icons were being cloned and
    animated on the spring animation.
    
    Only animate allocated icons. PaginatedIconGrid does not
    require this check since it only animated the visible
    page, which is always allocated.
    
    [1] 0eab73dc2e28a52d9c01a2c6e30e32125d0048a7
    [2] 08a3cbfc6cfd96f4efd8e25bc2732ad9ea7644f2
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/696

 js/ui/iconGrid.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/ui/iconGrid.js b/js/ui/iconGrid.js
index e0a1e8bd8a..85447972e0 100644
--- a/js/ui/iconGrid.js
+++ b/js/ui/iconGrid.js
@@ -414,7 +414,7 @@ var IconGrid = GObject.registerClass({
      * set of items to be animated.
      */
     _getChildrenToAnimate() {
-        return this._getVisibleChildren();
+        return this._getVisibleChildren().filter(icon => icon.has_allocation());
     }
 
     _resetAnimationActors() {