add sourcelist update callback

add reference counting to the menu builder

fix memory leaks when creating gtk4 menus

fail

add ui_sublist_item_set_button_menu and ui_sourcelist_args_set_header_is_item

implement sourcelist item popup menu (GTK)

hide sourcelist row button if the row is not hovered (GTK)

(0) -300 -100 -30 -10 -7 +7 +10 +30 +100 tip

mercurial