# Needs to update whenever a page is added or removed (or in some
# cases, when its content changes, if show= is specified), so
# register a dependency.
- add_depends($params{page}, $params{pages}, content => exists $params{show});
- # Explicitly add all currently shown pages, to detect when pages
- # are removed.
- foreach my $item (keys %mapitems) {
- add_depends($params{page}, $item, content => exists $params{show});
- }
+ add_depends($params{page}, $params{pages}, presence => ! exists $params{show});
# Create the map.
my $parent="";