X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/ef003f48f4a3fe8fb67fda62c70a299b07d75976..7ee7773e2acd97c81a20a877400e8126e981b424:/IkiWiki/Plugin/map.pm

diff --git a/IkiWiki/Plugin/map.pm b/IkiWiki/Plugin/map.pm
index 120451b5d..625cfdfca 100644
--- a/IkiWiki/Plugin/map.pm
+++ b/IkiWiki/Plugin/map.pm
@@ -68,19 +68,31 @@ sub preprocess (@) {
 	}
 
 	# Needs to update whenever a page is added or removed (or in some
-	# cases, when its content changes, if show=title), so register a
-	# dependency.
-	add_depends($params{page}, $params{pages});
+	# cases, when its content changes, if show= is specified), so
+	# register a dependency.
+	add_depends($params{page}, $params{pages}, presence => ! exists $params{show});
 	# Explicitly add all currently shown pages, to detect when pages
 	# are removed.
-	add_depends($params{page}, join(" or ", keys %mapitems));
+	foreach my $item (keys %mapitems) {
+		add_depends($params{page}, $item, presence => ! exists $params{show});
+	}
 
 	# Create the map.
 	my $parent="";
 	my $indent=0;
 	my $openli=0;
 	my $addparent="";
-	my $map = "<div class='map'>\n<ul>\n";
+	my $map = "<div class='map'>\n";
+
+	# Return empty div if %mapitems is empty
+	if (!scalar(keys %mapitems)) {
+		$map .= "</div>\n";
+		return $map; 
+	} 
+	else { # continue populating $map
+		$map .= "<ul>\n";
+	}
+
 	foreach my $item (sort keys %mapitems) {
 		my @linktext = (length $mapitems{$item} ? (linktext => $mapitems{$item}) : ());
 		$item=~s/^\Q$common_prefix\E\///