[gnome-shell/wip/exalm/gestures2: 6/10] fixup! workspaceAnimation: Add a background

[Alexander Mikhaylenko <alexm src gnome org>]

commit 1ef9174782f81156e77db09581eb05fcbed988c0
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Sat Jul 18 19:36:51 2020 +0500

    fixup! workspaceAnimation: Add a background

 js/ui/workspaceAnimation.js | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)
---
diff --git a/js/ui/workspaceAnimation.js b/js/ui/workspaceAnimation.js
index efb099fbd1..5b89846fa1 100644
--- a/js/ui/workspaceAnimation.js
+++ b/js/ui/workspaceAnimation.js
@@ -189,16 +189,13 @@ var WorkspaceAnimationController = class {
 
         switchData.container = new Clutter.Actor();
         switchData.container.add_child(switchData.curGroup);
-        switchData.backgrounds = [];
+        switchData.backgroundGroup = new Clutter.Actor();
 
-        for (const monitor of Main.layoutManager.monitors) {
-            const background = new MonitorGroup(monitor);
-            switchData.backgrounds.push(background);
+        for (const monitor of Main.layoutManager.monitors)
+            switchData.backgroundGroup.add_child(new MonitorGroup(monitor));
 
-            Main.uiGroup.insert_child_above(background, global.window_group);
-        }
-
-        Main.uiGroup.insert_child_above(switchData.container, switchData.backgrounds[0]);
+        Main.uiGroup.insert_child_above(switchData.backgroundGroup, global.window_group);
+        Main.uiGroup.insert_child_above(switchData.container, switchData.backgroundGroup);
         Main.uiGroup.insert_child_above(switchData.movingWindowBin, switchData.container);
 
         for (const dir of Object.values(Meta.MotionDirection)) {
@@ -251,7 +248,7 @@ var WorkspaceAnimationController = class {
             switchData.movingWindow = null;
         }
 
-        switchData.backgrounds.forEach(bg => bg.destroy());
+        switchData.backgroundGroup.destroy();
         switchData.container.destroy();
         switchData.movingWindowBin.destroy();