From 81210f584607f551de4e4d991e987fc57d309edb Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Wed, 12 May 2021 11:55:34 -0300
Subject: [PATCH] workspacesView: Don't update secondary monitor thumbnails box
 if hidden

And save quite a few C/JS trampolines. Since the thumbnails box may not
have up-to-date properties, call _updateThumbnailParams() right after
showing the thumbnails box.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1845>
---
 js/ui/workspacesView.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index c2d023cc4..6aa8b2615 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -777,6 +777,7 @@ class SecondaryMonitorDisplay extends St.Widget {
             return;
 
         this._thumbnails.show();
+        this._updateThumbnailParams();
         this._thumbnails.ease_property('expand-fraction', visible ? 1 : 0, {
             duration: OverviewControls.SIDE_CONTROLS_ANIMATION_TIME,
             mode: Clutter.AnimationMode.EASE_OUT_QUAD,
@@ -785,6 +786,9 @@ class SecondaryMonitorDisplay extends St.Widget {
     }
 
     _updateThumbnailParams() {
+        if (!this._thumbnails.visible)
+            return;
+
         const { initialState, finalState, progress } =
             this._overviewAdjustment.getStateTransitionParams();