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[git.ikiwiki.info.git] / IkiWiki / Plugin / calendar.pm

diff --git a/IkiWiki/Plugin/calendar.pm b/IkiWiki/Plugin/calendar.pm
index 02f41070e10ae6acf29ce9abd3c52aead7aefbc4..0bf933dcda9db2aedc0ccbb65a5b3f92223079e9 100644 (file)
--- a/IkiWiki/Plugin/calendar.pm
+++ b/IkiWiki/Plugin/calendar.pm
@@ -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}",
@@ -373,6 +373,16 @@ EOF
        return $calendar;
 }
 
+sub setnextchange ($$) {
+       my $page=shift;
+       my $timestamp=shift;
+
+       if (! exists $pagestate{$page}{calendar}{nextchange} ||
+           $pagestate{$page}{calendar}{nextchange} > $timestamp) {
+               $pagestate{$page}{calendar}{nextchange}=$timestamp;
+       }
+}
+
 sub preprocess (@) {
        my %params=@_;
 
@@ -386,15 +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", $params{month});
@@ -402,18 +417,18 @@ sub preprocess (@) {
        if ($params{type} eq 'month' && $params{year} == $thisyear
            && $params{month} == $thismonth) {
                # calendar for current month, updates next midnight
-               $pagestate{$params{destpage}}{calendar}{nextchange}=($time
+               setnextchange($params{destpage}, ($time
                        + (60 - $now[0])                # seconds
                        + (59 - $now[1]) * 60           # minutes
                        + (23 - $now[2]) * 60 * 60      # hours
-               );
+               ));
        }
        elsif ($params{type} eq 'month' &&
               (($params{year} == $thisyear && $params{month} > $thismonth) ||
                $params{year} > $thisyear)) {
                # calendar for upcoming month, updates 1st of that month
-               $pagestate{$params{destpage}}{calendar}{nextchange}=
-                       timelocal(0, 0, 0, 1, $params{month}-1, $params{year});
+               setnextchange($params{destpage},
+                       timelocal(0, 0, 0, 1, $params{month}-1, $params{year}));
        }
        elsif (($params{type} eq 'year' && $params{year} == $thisyear) ||
               $relativemonth) {
@@ -421,24 +436,24 @@ sub preprocess (@) {
                # Any calendar relative to the current month also updates
                # then.
                if ($thismonth < 12) {
-                       $pagestate{$params{destpage}}{calendar}{nextchange}=
-                               timelocal(0, 0, 0, 1, $thismonth+1-1, $params{year});
+                       setnextchange($params{destpage},
+                               timelocal(0, 0, 0, 1, $thismonth+1-1, $params{year}));
                }
                else {
-                       $pagestate{$params{destpage}}{calendar}{nextchange}=
-                               timelocal(0, 0, 0, 1, 1-1, $params{year}+1);
+                       setnextchange($params{destpage},
+                               timelocal(0, 0, 0, 1, 1-1, $params{year}+1));
                }
        }
        elsif ($relativeyear) {
                # Any calendar relative to the current year updates 1st
                # of next year.
-               $pagestate{$params{destpage}}{calendar}{nextchange}=
-                       timelocal(0, 0, 0, 1, 1-1, $thisyear+1);
+               setnextchange($params{destpage},
+                       timelocal(0, 0, 0, 1, 1-1, $thisyear+1));
        }
        elsif ($params{type} eq 'year' && $params{year} > $thisyear) {
                # calendar for upcoming year, updates 1st of that year
-               $pagestate{$params{destpage}}{calendar}{nextchange}=
-                       timelocal(0, 0, 0, 1, 1-1, $params{year});
+               setnextchange($params{destpage},
+                       timelocal(0, 0, 0, 1, 1-1, $params{year}));
        }
        else {
                # calendar for past month or year, does not need