calendar: Display year name in title of month calendar.
[ikiwiki.git] / IkiWiki / Plugin / calendar.pm
index d43320cacf5ba92953e2b49ba733b0c69eda75ca..0bf933dcda9db2aedc0ccbb65a5b3f92223079e9 100644 (file)
@@ -132,12 +132,12 @@ sub format_month (@) {
        $archivebase = $params{archivebase} if defined $params{archivebase};
   
        # Calculate URL's for monthly archives.
-       my ($url, $purl, $nurl)=("$monthname",'','');
+       my ($url, $purl, $nurl)=("$monthname $params{year}",'','');
        if (exists $pagesources{"$archivebase/$params{year}/$params{month}"}) {
                $url = htmllink($params{page}, $params{destpage}, 
                        "$archivebase/$params{year}/".$params{month},
                        noimageinline => 1,
-                       linktext => $monthname,
+                       linktext => "$monthname $params{year}",
                        title => $monthname);
        }
        add_depends($params{page}, "$archivebase/$params{year}/$params{month}",
@@ -396,15 +396,20 @@ sub preprocess (@) {
        $params{year}  = $thisyear      unless defined $params{year};
        $params{month} = $thismonth     unless defined $params{month};
 
-       my $relativemonth=0;
-       if ($params{month} < 1) {
-               $params{month}=$thismonth+$params{month};
-               $relativemonth=1;
-       }
        my $relativeyear=0;
        if ($params{year} < 1) {
-               $params{year}=$thisyear+$params{year};
                $relativeyear=1;
+               $params{year}=$thisyear+$params{year};
+       }
+       my $relativemonth=0;
+       if ($params{month} < 1) {
+               $relativemonth=1;
+               my $monthoff=$params{month};
+               $params{month}=($thismonth+$monthoff) % 12;
+               $params{month}=12 if $params{month}==0;
+               my $yearoff=POSIX::ceil(($thismonth-$params{month}) / -12)
+                       - int($monthoff / 12);
+               $params{year}-=$yearoff;
        }
        
        $params{month} = sprintf("%02d", $params{month});