[scripting] Re-evaluate exclusions after switching between virtual desktops or activities

Summary:
OtherDesktopsExclusion and OtherActivitiesExclusion flags must be
re-evaluated after user has switched between virtual desktops or
activities; otherwise ClientLevel may contain clients that are not
necessarily on the current virtual desktop or activity.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Maniphest Tasks: T12877

Differential Revision: https://phabricator.kde.org/D28827

scripting/scripting_model.cpp

@@ -39,6 +39,12 @@ static quint32 nextId() {
 ClientLevel::ClientLevel(ClientModel *model, AbstractLevel *parent)
     : AbstractLevel(model, parent)
 {
+#if KWIN_BUILD_ACTIVITIES
+    if (Activities *activities = Activities::self()) {
+        connect(activities, &Activities::currentChanged, this, &ClientLevel::reInit);
+    }
+#endif
+    connect(VirtualDesktopManager::self(), &VirtualDesktopManager::currentChanged, this, &ClientLevel::reInit);
     connect(Workspace::self(), &Workspace::clientAdded, this, &ClientLevel::clientAdded);
     connect(Workspace::self(), &Workspace::clientRemoved, this, &ClientLevel::clientRemoved);
     connect(model, SIGNAL(exclusionsChanged()), SLOT(reInit()));