workspace: Reset window opacity after overview transitions

When using the fade animation when transitioning to the overview instead
of zoom, we fade out all window previews to fully transparent. But after
commit 751189253a removed the old _updateWindowPositions() function,
nothing resets the opacity again, so when switching from the app- to the
window picker, all previews are hidden.

Fix this by always resetting the window preview opacity after showing
or hiding the overview.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2969

diff --git a/js/ui/workspace.js b/js/ui/workspace.js
index bbf61da33c4c15594492626c4917279d7a8c208c..164084a88452aadd17d074f814838e9f089b79b1 100644 (file)
--- a/js/ui/workspace.js
+++ b/js/ui/workspace.js
@@ -1194,10 +1194,12 @@ class Workspace extends St.Widget {
 
     _doneLeavingOverview() {
         this.layout_manager.layout_frozen = false;
+        this._windows.forEach(w => (w.opacity = 255));
     }
 
     _doneShowingOverview() {
         this.layout_manager.layout_frozen = false;
+        this._windows.forEach(w => (w.opacity = 255));
     }
 
     _isMyWindow(window) {