X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/fa52a730ff3b30c7d2cdd8cd5f9c8c25a0c0a2a5..ee9ae0a3149f04e9373a0b7b1fece99f5cc78e9c:/IkiWiki/Plugin/pagestats.pm

diff --git a/IkiWiki/Plugin/pagestats.pm b/IkiWiki/Plugin/pagestats.pm
index 1edb39455..4313aa271 100644
--- a/IkiWiki/Plugin/pagestats.pm
+++ b/IkiWiki/Plugin/pagestats.pm
@@ -12,33 +12,65 @@ package IkiWiki::Plugin::pagestats;
 
 use warnings;
 use strict;
-use IkiWiki;
+use IkiWiki 3.00;
 
 # Names of the HTML classes to use for the tag cloud
 our @classes = ('smallestPC', 'smallPC', 'normalPC', 'bigPC', 'biggestPC' );
 
-sub import { #{{{
+sub import {
+	hook(type => "getsetup", id => "pagestats", call => \&getsetup);
 	hook(type => "preprocess", id => "pagestats", call => \&preprocess);
-} # }}}
+}
 
-sub preprocess (@) { #{{{
+sub getsetup () {
+	return 
+		plugin => {
+			safe => 1,
+			rebuild => undef,
+		},
+}
+
+sub preprocess (@) {
 	my %params=@_;
 	$params{pages}="*" unless defined $params{pages};
 	my $style = ($params{style} or 'cloud');
 	
-	# Needs to update whenever a page is added or removed, so
-	# register a dependency.
-	add_depends($params{page}, $params{pages});
-	
 	my %counts;
 	my $max = 0;
-	foreach my $page (keys %links) {
-		if (pagespec_match($page, $params{pages}, $params{page})) {
-			use IkiWiki::Render;
-			my @bl = IkiWiki::backlinks($page);
-			$counts{$page} = scalar(@bl);
-			$max = $counts{$page} if $counts{$page} > $max;
+	foreach my $page (pagespec_match_list($params{page}, $params{pages},
+		                  # update when a displayed page is added/removed
+	        	          deptype => deptype("presence"))) {
+		use IkiWiki::Render;
+
+		my @backlinks = IkiWiki::backlink_pages($page);
+
+		if (exists $params{among}) {
+			# only consider backlinks from the amoung pages
+			@backlinks = pagespec_match_list(
+				$params{page}, $params{among},
+				# update whenever links on those pages change
+				deptype => deptype("links"),
+				list => \@backlinks
+			);
+		}
+		else {
+			# update when any page with links changes,
+			# in case the links point to our displayed pages
+			add_depends($params{page}, "*", deptype("links"));
 		}
+
+		$counts{$page} = scalar(@backlinks);
+		$max = $counts{$page} if $counts{$page} > $max;
+	}
+
+	if (exists $params{show}) {
+		my $i=0;
+		my %show;
+		foreach my $key (sort { $counts{$b} <=> $counts{$a} } keys %counts) {
+			last if ++$i > $params{show};
+			$show{$key}=$counts{$key};
+		}
+		%counts=%show;
 	}
 
 	if ($style eq 'table') {
@@ -50,11 +82,14 @@ sub preprocess (@) { #{{{
 			}
 			sort { $counts{$b} <=> $counts{$a} } keys %counts).
 			"\n</table>\n" ;
-	} else {
+	}
+	else {
 		# In case of misspelling, default to a page cloud
 
 		my $res = "<div class='pagecloud'>\n";
 		foreach my $page (sort keys %counts) {
+			next unless $counts{$page} > 0;
+
 			my $class = $classes[$counts{$page} * scalar(@classes) / ($max + 1)];
 			$res .= "<span class=\"$class\">".
 			        htmllink($params{page}, $params{destpage}, $page).
@@ -64,6 +99,6 @@ sub preprocess (@) { #{{{
 
 		return $res;
 	}
-} # }}}
+}
 
 1