[applets/systemtray] Hide/show expander arrow - regression fix
Summary:
Expander arrow should hide when all icons are visible and no icon is hidden. When dialog with hidden items is hidden ListView does not update its count property - property is update on redraw. As a result expander arrow is still visible/hidden until user clicks on any plasmoid to show dialog.
BUG: 420924
Test Plan:
- select/deselect "Show all items" in settings, save, expander arrow should hide/show imidiatelly
- select almost all items to "Always shown", leave "Keyboard indicator" as "Shown when relevant". Press Casp Lock, expander arrow should hide/show correctly
Reviewers: Plasma: Workspaces, Plasma, ngraham, broulik, davidedmundson
Reviewed By: Plasma: Workspaces, Plasma, broulik, davidedmundson
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D28180