trail: Converted all dependencies to presence dependencies.

[ikiwiki.git] / IkiWiki / Plugin / trail.pm

diff --git a/IkiWiki/Plugin/trail.pm b/IkiWiki/Plugin/trail.pm
index 330d2a31d77aac49ed6227d5a0bf24c6b752689c..cf0f0a15e874aa672ba5a9eff09859e3e6b1343a 100644 (file)
--- a/IkiWiki/Plugin/trail.pm
+++ b/IkiWiki/Plugin/trail.pm
@@ -26,10 +26,12 @@ sub import {
 # 
 # * $pagestate{$T}{trail}{contents} 
 #   Reference to an array of lists each containing either:
-#     - [link, "link"]
+#     - [pagenames => "page1", "page2"]
+#       Those literal pages
+#     - [link => "link"]
 #       A link specification, pointing to the same page that [[link]]
 #       would select
-#     - [pagespec, "posts/*", "age", 0]
+#     - [pagespec => "posts/*", "age", 0]
 #       A match by pagespec; the third array element is the sort order
 #       and the fourth is whether to reverse sorting
 # 
@@ -148,8 +150,8 @@ sub preprocess_trailitems (@) {
        }
 
        if (exists $params{pagenames}) {
-               my @list = map { [link =>  $_] } split ' ', $params{pagenames};
-               push @{$pagestate{$params{page}}{trail}{contents}}, @list;
+               push @{$pagestate{$params{page}}{trail}{contents}},
+                       [pagenames => (split ' ', $params{pagenames})];
        }
 
        return "";
@@ -271,6 +273,19 @@ sub prerender {
                                        $c->[1], sort => $c->[2],
                                        reverse => $c->[3]);
                        }
+                       elsif ($c->[0] eq 'pagenames') {
+                               my @pagenames = @$c;
+                               shift @pagenames;
+                               foreach my $page (@pagenames) {
+                                       if (exists $pagesources{$page}) {
+                                               push @$members, $page;
+                                       }
+                                       else {
+                                               # rebuild trail if it turns up
+                                               add_depends($trail, $page, deptype("presence"));
+                                       }
+                               }
+                       }
                        elsif ($c->[0] eq 'link') {
                                my $best = bestlink($trail, $c->[1]);
                                push @$members, $best if length $best;
@@ -303,7 +318,7 @@ sub prerender {
                        $prev = $members->[$i - 1] if $i > 0;
                        my $next = $members->[$i + 1];
 
-                       add_depends($member, $trail);
+                       add_depends($member, $trail, deptype("presence"));
 
                        $member_to_trails{$member}{$trail} = [$prev, $next];
                }
@@ -320,7 +335,7 @@ sub prerender {
                if (exists $pagestate{$member}{trail}{item} &&
                        ! exists $member_to_trails{$member}) {
                        $rebuild_trail_members{$member} = 1;
-                       delete $pagestate{$member}{trailitem};
+                       delete $pagestate{$member}{trail}{item};
                }
        }
 
@@ -391,13 +406,13 @@ sub pagetemplate (@) {
                        my ($prevurl, $nexturl, $prevtitle, $nexttitle);
 
                        if (defined $prev) {
-                               add_depends($params{destpage}, $prev);
+                               add_depends($params{destpage}, $prev, deptype("presence"));
                                $prevurl = urlto($prev, $page);
                                $prevtitle = title_of($prev);
                        }
 
                        if (defined $next) {
-                               add_depends($params{destpage}, $next);
+                               add_depends($params{destpage}, $next, deptype("presence"));
                                $nexturl = urlto($next, $page);
                                $nexttitle = title_of($next);
                        }