IkiWiki/Plugin/edittemplate.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::edittemplate;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki 2.00;
   7 use HTML::Template;
   8 use Encode;
   9
  10 sub import { #{{{
  11         hook(type => "needsbuild", id => "edittemplate",
  12                 call => \&needsbuild);
  13         hook(type => "preprocess", id => "edittemplate",
  14                 call => \&preprocess);
  15         hook(type => "formbuilder", id => "edittemplate",
  16                 call => \&formbuilder);
  17 } #}}}
  18
  19 sub needsbuild (@) { #{{{
  20         my $needsbuild=shift;
  21
  22         foreach my $page (keys %pagestate) {
  23                 if (exists $pagestate{$page}{edittemplate}) {
  24                         if (grep { $_ eq $pagesources{$page} } @$needsbuild) {
  25                                 # remove state, it will be re-added
  26                                 # if the preprocessor directive is still
  27                                 # there during the rebuild
  28                                 delete $pagestate{$page}{edittemplate};
  29                         }
  30                 }
  31         }
  32 } #}}}
  33
  34 sub preprocess (@) { #{{{
  35         my %params=@_;
  36
  37         return "" if $params{page} ne $params{destpage};
  38
  39         if (! exists $params{template} || ! length($params{template})) {
  40                 return return "[[meta ".gettext("template not specified")."]]";
  41         }
  42         if (! exists $params{match} || ! length($params{match})) {
  43                 return return "[[meta ".gettext("match not specified")."]]";
  44         }
  45
  46         $pagestate{$params{page}}{edittemplate}{$params{match}}=$params{template};
  47
  48         return sprintf(gettext("edittemplate %s registered for %s"),
  49                 $params{template}, $params{match});
  50 } # }}}
  51
  52 sub formbuilder (@) { #{{{
  53         my %params=@_;
  54         my $form=$params{form};
  55
  56         return if $form->field("do") ne "create";
  57         my $page=$form->field("page");
  58
  59         # The tricky bit here is that $page is probably just the base
  60         # page name, without any subdir, but the pagespec for a template
  61         # probably does include the subdir (ie, "bugs/*"). We don't know
  62         # what subdir the user will pick to put the page in. So, try them
  63         # all, starting with the one that was made default.
  64         my @page_locs=$page;
  65         foreach my $field ($form->field) {
  66                 if ($field eq 'page') {
  67                         @page_locs=$field->def_value;
  68                         push @page_locs, $field->options;
  69                 }
  70         }
  71
  72         foreach my $p (@page_locs) {
  73                 foreach my $registering_page (keys %pagestate) {
  74                         if (exists $pagestate{$registering_page}{edittemplate}) {
  75                                 foreach my $pagespec (sort keys %{$pagestate{$registering_page}{edittemplate}}) {
  76                                         if (pagespec_match($p, $pagespec, location => $registering_page)) {
  77                                                 $form->field(name => "editcontent",
  78                                                          value => filltemplate($pagestate{$registering_page}{edittemplate}{$pagespec}, $page));
  79                                                 return;
  80                                         }
  81                                 }
  82                         }
  83                 }
  84         }
  85 } #}}}
  86
  87 sub filltemplate ($$) { #{{{
  88         my $template_page=shift;
  89         my $page=shift;
  90
  91         my $template_file=$pagesources{$template_page};
  92         if (! defined $template_file) {
  93                 return;
  94         }
  95
  96         my $template;
  97         eval {
  98                 $template=HTML::Template->new(
  99                         filter => sub {
 100                                 my $text_ref = shift;
 101                                 $$text_ref=&Encode::decode_utf8($$text_ref);
 102                                 chomp $$text_ref;
 103                         },
 104                         filename => srcfile($template_file),
 105                         die_on_bad_params => 0,
 106                         no_includes => 1,
 107                 );
 108         };
 109         if ($@) {
 110                 return "[[pagetemplate ".gettext("failed to process")." $@]]";
 111         }
 112
 113         $template->param(name => $page);
 114
 115         return $template->output;
 116 } #}}}
 117
 118 1