workspace: Disable preview overlays unless fully zoomed out

The overlays are only meant to be shown when the workspace is fully
zoomed out, not when using the floating layout or some in-between state.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1345

diff --git a/js/ui/workspace.js b/js/ui/workspace.js
index b84c45b1f09df512f0b2ad5a4385f2fad00a2919..14670d10042f2e373198c995b78baa6de004dc39 100644 (file)
--- a/js/ui/workspace.js
+++ b/js/ui/workspace.js
@@ -416,8 +416,11 @@ var WorkspaceLayout = GObject.registerClass({
             upper: 1,
         });
 
-        this._stateAdjustment.connect('notify::value', () =>
-            this.layout_changed());
+        this._stateAdjustment.connect('notify::value', () => {
+            [...this._windows.keys()].forEach(
+                preview => this._syncOverlay(preview));
+            this.layout_changed();
+        });
     }
 
     _isBetterLayout(oldLayout, newLayout) {
@@ -632,6 +635,10 @@ var WorkspaceLayout = GObject.registerClass({
         }
     }
 
+    _syncOverlay(preview) {
+        preview.overlay_enabled = this._stateAdjustment.value === 1;
+    }
+
     /**
      * addWindow:
      * @param {WindowPreview} window: the window to add
@@ -665,6 +672,7 @@ var WorkspaceLayout = GObject.registerClass({
             return winA.get_stable_sequence() - winB.get_stable_sequence();
         });
 
+        this._syncOverlay(window);
         this._container.add_child(window);
 
         this._layout = null;