workspaceAnimation: Fix warning on restacking

Only workspace groups that are associated with a workspace have a
background. As a result, when restacking window previews we end up
passing `undefined` to clutter_actor_set_child_above_sibling()
instead of null, triggering a warning.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2209>
This commit is contained in:
Florian Müllner 2022-02-22 21:16:52 +01:00 committed by Marge Bot
parent 2b45a01517
commit 5d1b9a429e

View File

@ -73,11 +73,13 @@ class WorkspaceGroup extends Clutter.Actor {
this._shouldShowWindow(w.meta_window));
let lastRecord;
const bottomActor = this._background ?? null;
for (const windowActor of windowActors) {
const record = this._windowRecords.find(r => r.windowActor === windowActor);
this.set_child_above_sibling(record.clone, lastRecord ? lastRecord.clone : this._background);
this.set_child_above_sibling(record.clone,
lastRecord ? lastRecord.clone : bottomActor);
lastRecord = record;
}
}