[gnome-shell] layout: Allow updating struts in Overview

[Marge Bot <marge-bot src gnome org>]

commit ba0b9239d30f612ced693b6ba52923f6110140a4
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Feb 15 17:28:21 2021 -0300

    layout: Allow updating struts in Overview
    
    LayoutManager doesn't update struts when there's any modal running. Turns
    out, the Overview itself is a modal. That, and the fact that the Overview
    will be the startup state, prevents the workarea to be updated.
    
    Allow updating struts when there's no other modal than the Overview.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1678>

 js/ui/layout.js | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/js/ui/layout.js b/js/ui/layout.js
index 8104ea89ef..c2c8151c10 100644
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -957,13 +957,9 @@ var LayoutManager = GObject.registerClass({
             delete this._updateRegionIdle;
         }
 
-        // No need to update when we have a modal.
-        if (Main.modalCount > 0)
-            return GLib.SOURCE_REMOVE;
-
         let rects = [], struts = [], i;
         let isPopupMenuVisible = global.top_window_group.get_children().some(isPopupMetaWindow);
-        let wantsInputRegion = !isPopupMenuVisible;
+        const wantsInputRegion = !isPopupMenuVisible && Main.modalCount === 0;
 
         for (i = 0; i < this._trackedActors.length; i++) {
             let actorData = this._trackedActors[i];
@@ -1034,7 +1030,9 @@ var LayoutManager = GObject.registerClass({
             }
         }
 
-        global.set_stage_input_region(rects);
+        if (wantsInputRegion)
+            global.set_stage_input_region(rects);
+
         this._isPopupWindowVisible = isPopupMenuVisible;
 
         let workspaceManager = global.workspace_manager;