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 (exists $pagesources{$page} &&
  25                             grep { $_ eq $pagesources{$page} } @$needsbuild) {
  26                                 # remove state, it will be re-added
  27                                 # if the preprocessor directive is still
  28                                 # there during the rebuild
  29                                 delete $pagestate{$page}{edittemplate};
  30                         }
  31                 }
  32         }
  33 } #}}}
  34
  35 sub preprocess (@) { #{{{
  36         my %params=@_;
  37
  38         return "" if $params{page} ne $params{destpage};
  39
  40         if (! exists $params{template} || ! length($params{template})) {
  41                 error gettext("template not specified")
  42         }
  43         if (! exists $params{match} || ! length($params{match})) {
  44                 error gettext("match not specified")
  45         }
  46
  47         $pagestate{$params{page}}{edittemplate}{$params{match}}=$params{template};
  48
  49         return sprintf(gettext("edittemplate %s registered for %s"),
  50                 $params{template}, $params{match});
  51 } # }}}
  52
  53 sub formbuilder (@) { #{{{
  54         my %params=@_;
  55         my $form=$params{form};
  56
  57         return if $form->field("do") ne "create";
  58         my $page=$form->field("page");
  59
  60         # The tricky bit here is that $page is probably just the base
  61         # page name, without any subdir, but the pagespec for a template
  62         # probably does include the subdir (ie, "bugs/*"). We don't know
  63         # what subdir the user will pick to put the page in. So, try them
  64         # all, starting with the one that was made default.
  65         my @page_locs=$page;
  66         foreach my $field ($form->field) {
  67                 if ($field eq 'page') {
  68                         @page_locs=$field->def_value;
  69                         push @page_locs, $field->options;
  70                 }
  71         }
  72
  73         foreach my $p (@page_locs) {
  74                 foreach my $registering_page (keys %pagestate) {
  75                         if (exists $pagestate{$registering_page}{edittemplate}) {
  76                                 foreach my $pagespec (sort keys %{$pagestate{$registering_page}{edittemplate}}) {
  77                                         if (pagespec_match($p, $pagespec, location => $registering_page)) {
  78                                                 $form->field(name => "editcontent",
  79                                                          value => filltemplate($pagestate{$registering_page}{edittemplate}{$pagespec}, $page));
  80                                                 return;
  81                                         }
  82                                 }
  83                         }
  84                 }
  85         }
  86 } #}}}
  87
  88 sub filltemplate ($$) { #{{{
  89         my $template_page=shift;
  90         my $page=shift;
  91
  92         my $template_file=$pagesources{$template_page};
  93         if (! defined $template_file) {
  94                 return;
  95         }
  96
  97         my $template;
  98         eval {
  99                 $template=HTML::Template->new(
 100                         filter => sub {
 101                                 my $text_ref = shift;
 102                                 $$text_ref=&Encode::decode_utf8($$text_ref);
 103                                 chomp $$text_ref;
 104                         },
 105                         filename => srcfile($template_file),
 106                         die_on_bad_params => 0,
 107                         no_includes => 1,
 108                 );
 109         };
 110         if ($@) {
 111                 # Indicate that the earlier preprocessor directive set
 112                 # up a template that doesn't work.
 113                 return "[[!pagetemplate ".gettext("failed to process")." $@]]";
 114         }
 115
 116         $template->param(name => $page);
 117
 118         return $template->output;
 119 } #}}}
 120
 121 1