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#!/usr/bin/perl
#
# Produce page statistics in various forms.
#
# Currently supported:
# cloud: produces statistics in the form of a del.icio.us-style tag cloud
# (default)
# table: produces a table with the number of backlinks for each page
#
# by Enrico Zini
package IkiWiki::Plugin::pagestats;
use warnings;
use strict;
use IkiWiki 3.00;
# Names of the HTML classes to use for the tag cloud
our @classes = ('smallestPC', 'smallPC', 'normalPC', 'bigPC', 'biggestPC' );
sub import {
hook(type => "getsetup", id => "pagestats", call => \&getsetup);
hook(type => "preprocess", id => "pagestats", call => \&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');
my %counts;
my $max = 0;
foreach my $page (use_pagespec($params{page}, $params{pages},
# update when a displayed page is added or removed
deptype => deptype("presence"))) {
use IkiWiki::Render;
my @backlinks = IkiWiki::backlink_pages($page);
if (exists $params{among}) {
# only consider backlinks from the amoung pages
@backlinks = use_pagespec($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} > $max;
}
if ($style eq 'table') {
return "<table class='pageStats'>\n".
join("\n", map {
"<tr><td>".
htmllink($params{page}, $params{destpage}, $_, noimageinline => 1).
"</td><td>".$counts{$_}."</td></tr>"
}
sort { $counts{$b} <=> $counts{$a} } keys %counts).
"\n</table>\n" ;
}
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).
"</span>\n";
}
$res .= "</div>\n";
return $res;
}
}
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