[gnome-shell/wip/rstrode/login-screen-extensions: 73/134] workspacesView: Work around spurious allocation changes

[Ray Strode <halfline src gnome org>]

commit 34a5466a7a42c1eeb866417e6a25dd7c6dacfaa7
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Jul 12 03:26:51 2019 +0000

    workspacesView: Work around spurious allocation changes
    
    For some reason, people are still seeing those after commit d5ebd8c8.
    While this is something we really should figure out, we can work around
    the issue by keeping the view actors hidden until the update is complete.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/1065

 js/ui/workspacesView.js | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index 069937d5a9..e302296a65 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -666,10 +666,15 @@ var WorkspacesDisplay = class {
                                                this._scrollValueChanged.bind(this));
             }
 
+            // HACK: Avoid spurious allocation changes while updating views
+            view.actor.hide();
+
             this._workspacesViews.push(view);
             Main.layoutManager.overviewGroup.add_actor(view.actor);
         }
 
+        this._workspacesViews.forEach(v => v.actor.show());
+
         this._updateWorkspacesFullGeometry();
         this._updateWorkspacesActualGeometry();
     }