IkiWiki/Plugin/remove.pm

   1 #!/usr/bin/perl
   2 package IkiWiki::Plugin::remove;
   3
   4 use warnings;
   5 use strict;
   6 use IkiWiki 2.00;
   7
   8 sub import { #{{{
   9         hook(type => "formbuilder_setup", id => "remove", call => \&formbuilder_setup);
  10         hook(type => "formbuilder", id => "remove", call => \&formbuilder);
  11         hook(type => "sessioncgi", id => "remove", call => \&sessioncgi);
  12
  13 } # }}}
  14
  15 sub formbuilder_setup (@) { #{{{
  16         my %params=@_;
  17         my $form=$params{form};
  18         my $q=$params{cgi};
  19
  20         if (defined $form->field("do") && $form->field("do") eq "edit") {
  21                 push @{$params{buttons}}, "Remove";
  22                 # TODO button for attachments
  23         }
  24 } #}}}
  25
  26 sub confirmation_form ($$) { #{{{
  27         my $q=shift;
  28         my $session=shift;
  29
  30         eval q{use CGI::FormBuilder};
  31         error($@) if $@;
  32         my @fields=qw(do page);
  33         my $f = CGI::FormBuilder->new(
  34                 title => "confirm removal",
  35                 name => "remove",
  36                 header => 0,
  37                 charset => "utf-8",
  38                 method => 'POST',
  39                 javascript => 0,
  40                 params => $q,
  41                 action => $config{cgiurl},
  42                 stylesheet => IkiWiki::baseurl()."style.css",
  43                 fields => \@fields,
  44         );
  45
  46         $f->field(name => "do", type => "hidden", value => "remove", force => 1);
  47         $f->field(name => "page", label => "Will remove:", validate => sub {
  48                 my $page=shift;
  49                 if (! exists $pagesources{$page}) {
  50                         $f->field(name => "page", message => gettext("page does not exist"));
  51                         return 0;
  52                 }
  53                 else {
  54                         IkiWiki::check_canedit($page, $q, $session);
  55                         return 1;
  56                 }
  57         });
  58
  59         return $f, ["Remove", "Cancel"];
  60 } #}}}
  61
  62 sub formbuilder (@) { #{{{
  63         my %params=@_;
  64         my $form=$params{form};
  65
  66         if (defined $form->field("do") && $form->field("do") eq "edit" &&
  67             $form->submitted eq "Remove") {
  68                 my $q=$params{cgi};
  69                 my $session=$params{session};
  70                 # Save current form state to allow returning to it later
  71                 # without losing any edits.
  72                 # (But don't save what button was submitted.)
  73                 $q->param(-name => "_submit", -value => "");
  74                 $session->param(postremove => scalar $q->Vars);
  75                 IkiWiki::cgi_savesession($session);
  76
  77                 # Display a small confirmation form.
  78                 my ($f, $buttons)=confirmation_form($q, $session);
  79                 $f->field(name => "page", value => $form->field("page"),
  80                         force => 1);
  81                 IkiWiki::showform($f, $buttons, $session, $q);
  82                 exit 0;
  83         }
  84 } #}}}
  85
  86 sub sessioncgi ($$) { #{{{
  87         my $q=shift;
  88
  89         if ($q->param("do") eq 'remove') {
  90                 my $session=shift;
  91                 my ($form, $buttons)=confirmation_form($q, $session);
  92                 IkiWiki::decode_form_utf8($form);
  93                 if ($form->submitted eq 'Cancel') {
  94                         # Load saved form state and return to edit form.
  95                         my $postremove=CGI->new($session->param("postremove"));
  96                         $session->clear("postremove");
  97                         IkiWiki::cgi_savesession($session);
  98                         IkiWiki::cgi($postremove, $session);
  99                         exit 0;
 100                 }
 101                 elsif ($form->submitted eq 'Remove' && $form->validate) {
 102                         error("removal not yet implemented"); # TODO
 103                 }
 104                 else {
 105                         IkiWiki::showform($form, $buttons, $session, $q);
 106                         exit 0;
 107                 }
 108         }
 109 }
 110
 111 1