IkiWiki/Plugin/edittemplate.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::edittemplate;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki 3.00;
   7 use HTML::Template;
   8 use Encode;
   9
  10 sub import {
  11         hook(type => "getsetup", id => "edittemplate",
  12                 call => \&getsetup);
  13         hook(type => "needsbuild", id => "edittemplate",
  14                 call => \&needsbuild);
  15         hook(type => "preprocess", id => "edittemplate",
  16                 call => \&preprocess);
  17         hook(type => "formbuilder", id => "edittemplate",
  18                 call => \&formbuilder);
  19 }
  20
  21 sub getsetup () {
  22         return
  23                 plugin => {
  24                         safe => 1,
  25                         rebuild => undef,
  26                 },
  27 }
  28
  29 sub needsbuild (@) {
  30         my $needsbuild=shift;
  31
  32         foreach my $page (keys %pagestate) {
  33                 if (exists $pagestate{$page}{edittemplate}) {
  34                         if (exists $pagesources{$page} &&
  35                             grep { $_ eq $pagesources{$page} } @$needsbuild) {
  36                                 # remove state, it will be re-added
  37                                 # if the preprocessor directive is still
  38                                 # there during the rebuild
  39                                 delete $pagestate{$page}{edittemplate};
  40                         }
  41                 }
  42         }
  43 }
  44
  45 sub preprocess (@) {
  46         my %params=@_;
  47
  48         return "" if $params{page} ne $params{destpage};
  49
  50         if (! exists $params{template} || ! length($params{template})) {
  51                 error gettext("template not specified")
  52         }
  53         if (! exists $params{match} || ! length($params{match})) {
  54                 error gettext("match not specified")
  55         }
  56
  57         my $link=linkpage($params{template});
  58         $pagestate{$params{page}}{edittemplate}{$params{match}}=$link;
  59
  60         return "" if ($params{silent} && IkiWiki::yesno($params{silent}));
  61         add_depends($params{page}, $link, content => 0);
  62         return sprintf(gettext("edittemplate %s registered for %s"),
  63                 htmllink($params{page}, $params{destpage}, $link),
  64                 $params{match});
  65 }
  66
  67 sub formbuilder (@) {
  68         my %params=@_;
  69         my $form=$params{form};
  70
  71         return if $form->field("do") ne "create" ||
  72                 (defined $form->field("editcontent") && length $form->field("editcontent"));
  73
  74         my $page=$form->field("page");
  75
  76         # The tricky bit here is that $page is probably just the base
  77         # page name, without any subdir, but the pagespec for a template
  78         # probably does include the subdir (ie, "bugs/*"). We don't know
  79         # what subdir the user will pick to put the page in. So, try them
  80         # all, starting with the one that was made default.
  81         my @page_locs=$page;
  82         foreach my $field ($form->field) {
  83                 if ($field eq 'page') {
  84                         @page_locs=$field->def_value;
  85                         push @page_locs, $field->options;
  86                 }
  87         }
  88
  89         foreach my $p (@page_locs) {
  90                 foreach my $registering_page (keys %pagestate) {
  91                         if (exists $pagestate{$registering_page}{edittemplate}) {
  92                                 foreach my $pagespec (sort keys %{$pagestate{$registering_page}{edittemplate}}) {
  93                                         if (pagespec_match($p, $pagespec, location => $registering_page)) {
  94                                                 my $template=$pagestate{$registering_page}{edittemplate}{$pagespec};
  95                                                 $form->field(name => "editcontent",
  96                                                          value =>  filltemplate($template, $page));
  97                                                 $form->field(name => "type",
  98                                                          value => pagetype($pagesources{$template}))
  99                                                                 if $pagesources{$template};
 100                                                 return;
 101                                         }
 102                                 }
 103                         }
 104                 }
 105         }
 106 }
 107
 108 sub filltemplate ($$) {
 109         my $template_page=shift;
 110         my $page=shift;
 111
 112         my $template_file=$pagesources{$template_page};
 113         if (! defined $template_file) {
 114                 return;
 115         }
 116
 117         my $template;
 118         eval {
 119                 $template=HTML::Template->new(
 120                         filter => sub {
 121                                 my $text_ref = shift;
 122                                 $$text_ref=&Encode::decode_utf8($$text_ref);
 123                                 chomp $$text_ref;
 124                         },
 125                         filename => srcfile($template_file),
 126                         die_on_bad_params => 0,
 127                         no_includes => 1,
 128                 );
 129         };
 130         if ($@) {
 131                 # Indicate that the earlier preprocessor directive set
 132                 # up a template that doesn't work.
 133                 return "[[!pagetemplate ".gettext("failed to process")." $@]]";
 134         }
 135
 136         $template->param(name => $page);
 137
 138         return $template->output;
 139 }
 140
 141 1