html-webhacc/WebHACC/Output.pm

package WebHACC::Output;
use strict;

require IO::Handle;
use Scalar::Util qw/refaddr/;

my $htescape = sub ($) {
  my $s = $_[0];
  $s =~ s/&/&amp;/g;
  $s =~ s/</&lt;/g;
  $s =~ s/>/&gt;/g;
  $s =~ s/"/&quot;/g;
  $s =~ s{([\x00-\x09\x0B-\x1F\x7F-\xA0\x{FEFF}\x{FFFC}-\x{FFFF}])}{
    sprintf '<var>U+%04X</var>', ord $1;
  }ge;
  return $s;
};

my $htescape_value = sub ($) {
  my $s = $_[0];
  $s =~ s/&/&amp;/g;
  $s =~ s/</&lt;/g;
  $s =~ s/>/&gt;/g;
  $s =~ s/"/&quot;/g;
  return $s;
};

sub new ($) {
  require WebHACC::Input;
  return bless {nav => [], section_rank => 1,
                input => WebHACC::Input->new}, shift;
} # new

sub input ($;$) {
  if (@_ > 1) {
    if (defined $_[1]) {
      $_[0]->{input} = $_[1];
    } else {
      $_[0]->{input} = WebHACC::Input->new;
    }
  }
  
  return $_[0]->{input};
} # input

sub handle ($;$) {
  if (@_ > 1) {
    if (defined $_[1]) {
      $_[0]->{handle} = $_[1];
    } else {
      delete $_[0]->{handle};
    }
  }
  
  return $_[0]->{handle};
} # handle

sub set_utf8 ($) {
  binmode shift->{handle}, ':utf8';
} # set_utf8

sub set_flush ($) {
  shift->{handle}->autoflush (1);
} # set_flush

sub unset_flush ($) {
  shift->{handle}->autoflush (0);
} # unset_flush

sub html ($$) {
  shift->{handle}->print (shift);
} # html

sub text ($$) {
  shift->html ($htescape->(shift));
} # text

sub url ($$%) {
  my ($self, $url, %opt) = @_;
  $self->html (q[<code class=uri>&lt;]);
  $self->link ($url, %opt, url => $url);
  $self->html (q[></code>]);
} # url

sub start_tag ($$%) {
  my ($self, $tag_name, %opt) = @_;
  $self->html ('<' . $htescape_value->($tag_name)); # escape for safety
  if (exists $opt{id}) {
    my $id = $self->input->id_prefix . $opt{id};
    $self->html (' id="' . $htescape_value->($id) . '"');
    delete $opt{id};
  }
  for (keys %opt) {    # for safety
    $self->html (' ' . $htescape_value->($_) . '="' .
                 $htescape_value->($opt{$_}) . '"');
  }
  $self->html ('>');
} # start_tag

sub end_tag ($$) {
  shift->html ('</' . $htescape_value->(shift) . '>');
} # end_tag

sub start_section ($%) {
  my ($self, %opt) = @_;

  my $class = 'section';
  if (defined $opt{role}) {
    if ($opt{role} eq 'parse-errors') {
      $opt{id} ||= 'parse-errors';
      $opt{title} ||= 'Parse Errors Section';
      $opt{short_title} ||= 'Parse Errors';
      $class .= ' errors';
      delete $opt{role};
    } elsif ($opt{role} eq 'structure-errors') {
      $opt{id} ||= 'document-errors';
      $opt{title} ||= 'Structural Errors';
      $opt{short_title} ||= 'Struct. Errors';
      $class .= ' errors';
      delete $opt{role};
    } elsif ($opt{role} eq 'transfer-errors') {
      $opt{id} ||= 'transfer-errors';
      $opt{title} ||= 'Transfer Errors';
      $opt{short_title} ||= 'Trans. Errors';
      $class .= ' errors';
      delete $opt{role};
    } elsif ($opt{role} eq 'reformatted') {
      $opt{id} ||= 'document-tree';
      $opt{title} ||= 'Reformatted Document Source';
      $opt{short_title} ||= 'Reformatted';
      $class .= ' dump';
      delete $opt{role}
    } elsif ($opt{role} eq 'tree') {
      $opt{id} ||= 'document-tree';
      $opt{title} ||= 'Document Tree';
      $opt{short_title} ||= 'Tree';
      $class .= ' dump';
      delete $opt{role};
    } elsif ($opt{role} eq 'structure') {
      $opt{id} ||= 'document-structure';
      $opt{title} ||= 'Document Structure';
      $opt{short_title} ||= 'Structure';
      $class .= ' dump';
      delete $opt{role};
    } elsif ($opt{role} eq 'subdoc') {
      $class .= ' subdoc';
      delete $opt{role};
    } elsif ($opt{role} eq 'source') {
      $opt{id} ||= 'source-string';
      $opt{title} ||= 'Document Source';
      $opt{short_title} ||= 'Source';
      $class .= ' source';
      delete $opt{role};
    } elsif ($opt{role} eq 'result') {
      $opt{id} ||= 'result-summary';
      $opt{title} ||= 'Result';
      $class .= ' result';
      delete $opt{role};
    }
  }

  $self->{section_rank}++;
  $self->html (qq[<div class="$class"]);
  if (defined $opt{id}) {
    my $prefix = $self->input->id_prefix;
    $opt{parent_id} ||= $prefix;
    my $id = $prefix . $opt{id};
    $self->html (' id="' . $htescape->($id) . '">');
    if ($self->{section_rank} == 2 or length $opt{parent_id}) {
      my $st = $opt{short_title} || $opt{title};
      push @{$self->{nav}},
          [$id => $st => $opt{text}];
      
      $self->start_tag ('script');
      $self->html (qq[ addSectionLink ('$id', ']);
      $self->nl_text ($st, text => $opt{text});
      if (defined $opt{parent_id}) {
        $self->html (q[', '] . $opt{parent_id});
      }
      $self->html (q[') ]);
      $self->end_tag ('script');
    }
  } else {
    $self->html ('>');
  }
  my $section_rank = $self->{section_rank};
  $section_rank = 6 if $section_rank > 6;
  $self->html ('<h' . $section_rank . '>');
  $self->nl_text ($opt{title}, text => $opt{text});
  $self->html ('</h' . $section_rank . '>');
} # start_section

sub end_section ($) {
  my $self = shift;
  $self->html ('</div>');
  $self->{handle}->flush;
  $self->{section_rank}--;
} # end_section

sub start_error_list ($%) {
  my ($self, %opt) = @_;

  if (defined $opt{role}) {
    if ($opt{role} eq 'parse-errors') {
      $opt{id} ||= 'parse-errors-list';
      delete $opt{role};
    } elsif ($opt{role} eq 'structure-errors') {
      $opt{id} ||= 'document-errors-list';
      delete $opt{role};
    }
  }

  $self->start_tag ('dl', %opt);
} # start_error_list

sub end_error_list ($%) {
  my ($self, %opt) = @_;

  if (defined $opt{role}) {
    if ($opt{role} eq 'parse-errors') {
      delete $opt{role};
      $self->end_tag ('dl');
      ## NOTE: For parse error list, the |add_source_to_parse_error_list|
      ## method is invoked at the end of |generate_source_string_section|,
      ## since that generation method is invoked after the error list
      ## is generated.
    } elsif ($opt{role} eq 'structure-errors') {
      delete $opt{role};
      $self->end_tag ('dl');
      $self->add_source_to_parse_error_list ('document-errors-list');
    } else {
      $self->end_tag ('dl');
    }
  } else {
    $self->end_tag ('dl');
  }
} # end_error_list

sub add_source_to_parse_error_list ($$) {
  my $self = shift;

  $self->script (q[addSourceToParseErrorList ('] . $self->input->id_prefix .
                 q[', '] . shift () . q[')]);
} # add_source_to_parse_error_list

sub start_code_block ($) {
  shift->html ('<pre><code>');
} # start_code_block

sub end_code_block ($) {
  shift->html ('</code></pre>');
} # end_code_block

sub code ($$;%) {
  my ($self, $content, %opt) = @_;
  $self->start_tag ('code', %opt);
  $self->text ($content);
  $self->html ('</code>');
} # code

sub script ($$;%) {
  my ($self, $content, %opt) = @_;
  $self->start_tag ('script', %opt);
  $self->html ($content);
  $self->html ('</script>');
} # script

sub dt ($$;%) {
  my ($self, $content, %opt) = @_;
  $self->start_tag ('dt', %opt);
  $self->nl_text ($content, text => $opt{text});
} # dt

sub select ($$%) {
  my ($self, $options, %opt) = @_;

  my $selected = $opt{selected};
  delete $opt{selected};

  $self->start_tag ('select', %opt);
  
  my @options = @$options;
  while (@options) {
    my $opt = shift @options;
    if ($opt->{options}) {
      $self->html ('<optgroup label="');
      $self->nl_text ($opt->{label});
      $self->html ('">');
      unshift @options, @{$opt->{options}}, {end_options => 1};
    } elsif ($opt->{end_options}) {
      $self->end_tag ('optgroup');
    } else {
      $self->start_tag ('option', value => $opt->{value},
                        ((defined $selected and $opt->{value} eq $selected)
                             ? (selected => '') : ()));
      $self->nl_text (defined $opt->{label} ? $opt->{label} : $opt->{value});
    }
  }

  $self->end_tag ('select');
} # select

sub link ($$%) {
  my ($self, $content, %opt) = @_;
  $self->start_tag ('a', %opt, href => $opt{url});
  $self->text ($content);
  $self->html ('</a>');
} # link

sub xref ($$%) {
  my ($self, $content, %opt) = @_;
  $self->html ('<a href="#' . $htescape->($self->input->id_prefix . $opt{target}) . '">');
  $self->nl_text ($content, text => $opt{text});
  $self->html ('</a>');
} # xref

sub link_to_webhacc ($$%) {
  my ($self, $content, %opt) = @_;
  $opt{url} = './?uri=' . $self->encode_url_component ($opt{url});
  $self->link ($content, %opt);
} # link_to_webhacc

my $get_node_path = sub ($) {
  my $node = shift;
  my @r;
  while (defined $node) {
    my $rs;
    if ($node->node_type == 1) {
      $rs = $node->node_name;
      $node = $node->parent_node;
    } elsif ($node->node_type == 2) {
      $rs = '@' . $node->node_name;
      $node = $node->owner_element;
    } elsif ($node->node_type == 3) {
      $rs = '"' . $node->data . '"';
      $node = $node->parent_node;
    } elsif ($node->node_type == 9) {
      @r = ('') unless @r;
      $rs = '';
      $node = $node->parent_node;
    } else {
      $rs = '#' . $node->node_type;
      $node = $node->parent_node;
    }
    unshift @r, $rs;
  }
  return join '/', @r;
}; # $get_node_path

my $get_object_path = sub ($) {
  my $node = shift;
  my @r;
  while (defined $node) {
    my $ref = ref $node;
    $ref =~ /([^:]+)$/;
    my $rs = $1;
    my $node_name = $node->node_name;
    if (defined $node_name) {
      $rs .= ' <code>' . $htescape->($node_name) . '</code>';
    }
    $node = undef;
    unshift @r, $rs;
  }
  return join '/', @r;
}; # $get_object_path

sub node_link ($$) {
  my ($self, $node) = @_;
  if ($node->isa ('Message::IF::Node')) {
    $self->xref ($get_node_path->($node), target => 'node-' . refaddr $node);
  } else {
    $self->html ($get_object_path->($node));
  }
} # node_link

{
  my $Msg = {};

sub load_text_catalog ($$) {
  my $self = shift;

  my $lang = shift; # MUST be a canonical lang name
  my $file_name = qq[cc-msg.$lang.txt];
  $lang = 'en' unless -f $file_name;
  $self->{primary_language} = $lang;
  
  open my $file, '<:utf8', $file_name or die "$0: $file_name: $!";
  while (<$file>) {
    if (s/^([^;]+);([^;]*);//) {
      my ($type, $cls, $msg) = ($1, $2, $_);
      $msg =~ tr/\x0D\x0A//d;
      $Msg->{$type} = [$cls, $msg];
    }
  }
} # load_text_catalog

sub nl_text ($$;%) {
  my ($self, $type, %opt) = @_;
  my $node = $opt{node};

  my @arg;
  {
    if (defined $Msg->{$type}) {
      my $msg = $Msg->{$type}->[1];
      if ($msg =~ /<var>/) {
        $msg =~ s{<var>\$([0-9]+)</var>}{
          defined $arg[$1] ? $htescape->($arg[$1]) : '(undef)';
        }ge;
        $msg =~ s{<var>{\@([A-Za-z0-9:_.-]+)}</var>}{
          UNIVERSAL::can ($node, 'get_attribute_ns')
              ? $htescape->($node->get_attribute_ns (undef, $1)) : ''
        }ge;
        $msg =~ s{<var>{\@}</var>}{
          UNIVERSAL::can ($node, 'value') ? $htescape->($node->value) : ''
        }ge;
        $msg =~ s{<var>{text}</var>}{
          defined $opt{text} ? $htescape->($opt{text}) : ''
        }ge;
        $msg =~ s{<var>{local-name}</var>}{
          UNIVERSAL::can ($node, 'manakai_local_name')
            ? $htescape->($node->manakai_local_name) : ''
        }ge;
        $msg =~ s{<var>{element-local-name}</var>}{
          (UNIVERSAL::can ($node, 'owner_element') and
           $node->owner_element)
            ? $htescape->($node->owner_element->manakai_local_name) : ''
        }ge;
      }
      $self->html ($msg);
      return;
    } elsif ($type =~ s/:([^:]*)$//) {
      unshift @arg, $1;
      redo;
    }
  }
  $self->text ($type);
} # nl_text

}

sub nav_list ($) {
  my $self = shift;
  $self->html (q[<ul class="navigation" id="nav-items">]);
  for (@{$self->{nav}}) {
    $self->html (qq[<li><a href="#@{[$htescape->($_->[0])]}">]);
    $self->nl_text ($_->[1], text => $_->[2]);
    $self->html ('</a>');
  }
  $self->html ('</ul>');
} # nav_list

sub http_header ($) {
  shift->html (qq[Content-Type: text/html; charset=utf-8\n\n]);
} # http_header

sub http_error ($$) {
  my $self = shift;
  my $code = 0+shift;
  my $text = {
    404 => 'Not Found',
  }->{$code};
  $self->html (qq[Status: $code $text\nContent-Type: text/html ; charset=us-ascii\n\n$code $text]);
} # http_error

sub html_header ($) {
  my $self = shift;
  $self->html (q[<!DOCTYPE html>]);
  $self->start_tag ('html', lang => $self->{primary_language});
  $self->html (q[<head><title>]);
  $self->nl_text (q[WebHACC:Title]);
  $self->html (q[</title>
<link rel="stylesheet" href="../cc-style.css" type="text/css">
<script src="../cc-script.js"></script>
</head>
<body onclick=" return onbodyclick (event) " onload=" onbodyload () ">
<h1>]);
  $self->nl_text (q[WebHACC:Heading]);
  $self->html (q[</h1><script> insertNavSections () </script>]);
} # html_header

sub generate_input_section ($$) {
  my ($out, $cgi) = @_;

  my $options = sub ($) {
    my $context = shift;

    $out->html (q[<div class="details default"><p class=legend onclick="nextSibling.style.display = nextSibling.style.display == 'block' ? 'none' : 'block'; parentNode.className = nextSibling.style.display == 'none' ? 'details' : 'details open'">]);
    $out->nl_text (q[Options]);
    $out->start_tag ('div');

    if ($context eq 'url') {
      $out->start_tag ('p');
      $out->start_tag ('label');
      $out->start_tag ('input', type => 'checkbox', name => 'error-page',
                       value => 1,
                       ($cgi->get_parameter ('error-page')
                            ? (checked => '') : ()));
      $out->nl_text ('Check error page');
      $out->end_tag ('label');
    }
 
    $out->start_tag ('p');
    $out->start_tag ('label');
    $out->nl_text (q[Content type]);
    $out->text (': ');
    $out->select ([
      {value => '', label => 'As specified'},
      {value => 'application/atom+xml'},
      {value => 'application/xhtml+xml'},
      {value => 'application/xml'},
      {value => 'text/html'},
      {value => 'text/xml'},
      {value => 'text/css'},
      {value => 'text/cache-manifest'},
      {value => 'text/x-webidl'},
    ], name => 'i', selected => scalar $cgi->get_parameter ('i'));
    $out->end_tag ('label');

    if ($context ne 'text') {
      $out->start_tag ('p');
      $out->start_tag ('label');
      $out->nl_text (q[Charset]);
      $out->text (q[: ]);
      $out->select ([
        {value => '', label => 'As specified'},
        {label => 'Japanese charsets', options => [
          {value => 'Windows-31J'},
          {value => 'Shift_JIS'},
          {value => 'EUC-JP'},
          {value => 'ISO-2022-JP'},
        ]},
        {label => 'European charsets', options => [
          {value => 'Windows-1252'},
          {value => 'ISO-8859-1'},
          {value => 'US-ASCII'},
        ]},
        {label => 'Asian charsets', options => [
          {value => 'Windows-874'},
          {value => 'ISO-8859-11'},
          {value => 'TIS-620'},
        ]},
        {label => 'Unicode charsets', options => [
          {value => 'UTF-8'},
          {value => 'UTF-8n'},
        ]},
      ], name => 'charset',
      selected => scalar $cgi->get_parameter ('charset'));
      $out->end_tag ('label');
    }

    if ($context eq 'text') {
      $out->start_tag ('p');
      $out->start_tag ('label');
      $out->nl_text ('Setting innerHTML');
      $out->text (': ');
      $out->start_tag ('input', name => 'e',
                       value => scalar $cgi->get_parameter ('e'));
      $out->end_tag ('label');
    }

    $out->html (q[</div></div>]);
  }; # $options

  $out->start_section (id => 'input', title => 'Input');
  $out->html (q[<script> insertNavSections ('input') </script>]);

  $out->start_section (id => 'input-url', title => 'By URL',
                       parent_id => 'input');
  $out->start_tag ('form', action => './#result-summary',
                   'accept-charset' => 'utf-8',
                   method => 'get');
  $out->start_tag ('input', type => 'hidden', name => '_charset_');

  $out->start_tag ('p');
  $out->start_tag ('label');
  $out->nl_text ('URL');
  $out->text (': ');
  $out->start_tag ('input',
                   name => 'uri',
                   type => 'url',
                   value => $cgi->get_parameter ('uri'));
  $out->end_tag ('label');

  $out->start_tag ('p');
  $out->start_tag ('button', type => 'submit');
  $out->nl_text ('Check');
  $out->end_tag ('button');

  $options->('url');

  $out->end_tag ('form');
  $out->end_section;

  $out->end_tag ('fieldset');

  ## TODO: File upload

  $out->start_section (id => 'input-text', title => 'By direct input',
                       parent_id => 'input');
  $out->start_tag ('form', action => './#result-summary',
                   'accept-charset' => 'utf-8',
                   method => 'post');
  $out->start_tag ('input', type => 'hidden', name => '_charset_');

  $out->start_tag ('p');
  $out->start_tag ('label');
  $out->nl_text ('Document source to check');
  $out->text (': ');
  $out->start_tag ('br');
  $out->start_tag ('textarea',
                   name => 's');
  my $s = $cgi->get_parameter ('s');
  $out->html ($htescape_value->($s)) if defined $s;
  $out->end_tag ('textarea');
  $out->end_tag ('label');

  $out->start_tag ('p');
  $out->start_tag ('button', type => 'submit', 
                   onclick => 'form.method = form.s.value.length > 512 ? "post" : "get"');
  $out->nl_text ('Check');
  $out->end_tag ('button');

  $options->('text');

  $out->end_tag ('form');
  $out->end_section;

  $out->script (q[
    if (!document.webhaccNavigated &&
        document.getElementsByTagName ('textarea')[0].value.length > 0) {
      showTab ('input-text');
      document.webhaccNavigated = false;
    }
  ]);

  $out->end_section;
} # generate_input_section

sub encode_url_component ($$) {
  shift;
  require Encode;
  my $s = Encode::encode ('utf8', shift);
  $s =~ s/([^0-9A-Za-z_.~-])/sprintf '%%%02X', ord $1/ge;
  return $s;
} # encode_url_component

1;
1	wakaba	1.1	package WebHACC::Output;
2			use strict;
3	wakaba	1.3
4	wakaba	1.1	require IO::Handle;
5	wakaba	1.3	use Scalar::Util qw/refaddr/;
6	wakaba	1.1
7			my $htescape = sub ($) {
8			my $s = $_[0];
9			$s =~ s/&/&/g;
10			$s =~ s/</</g;
11			$s =~ s/>/>/g;
12			$s =~ s/"/"/g;
13			$s =~ s{([\x00-\x09\x0B-\x1F\x7F-\xA0\x{FEFF}\x{FFFC}-\x{FFFF}])}{
14			sprintf '<var>U+%04X</var>', ord $1;
15			}ge;
16			return $s;
17			};
18
19	wakaba	1.10	my $htescape_value = sub ($) {
20			my $s = $_[0];
21			$s =~ s/&/&/g;
22			$s =~ s/</</g;
23			$s =~ s/>/>/g;
24			$s =~ s/"/"/g;
25			return $s;
26			};
27
28	wakaba	1.1	sub new ($) {
29	wakaba	1.9	require WebHACC::Input;
30			return bless {nav => [], section_rank => 1,
31			input => WebHACC::Input->new}, shift;
32	wakaba	1.1	} # new
33
34			sub input ($;$) {
35			if (@_ > 1) {
36			if (defined $_[1]) {
37			$_[0]->{input} = $_[1];
38			} else {
39	wakaba	1.9	$_[0]->{input} = WebHACC::Input->new;
40	wakaba	1.1	}
41			}
42
43			return $_[0]->{input};
44			} # input
45
46			sub handle ($;$) {
47			if (@_ > 1) {
48			if (defined $_[1]) {
49			$_[0]->{handle} = $_[1];
50			} else {
51			delete $_[0]->{handle};
52			}
53			}
54
55			return $_[0]->{handle};
56			} # handle
57
58			sub set_utf8 ($) {
59			binmode shift->{handle}, ':utf8';
60			} # set_utf8
61
62			sub set_flush ($) {
63			shift->{handle}->autoflush (1);
64			} # set_flush
65
66			sub unset_flush ($) {
67			shift->{handle}->autoflush (0);
68			} # unset_flush
69
70			sub html ($$) {
71			shift->{handle}->print (shift);
72			} # html
73
74			sub text ($$) {
75			shift->html ($htescape->(shift));
76			} # text
77
78			sub url ($$%) {
79			my ($self, $url, %opt) = @_;
80			$self->html (q[<code class=uri><]);
81			$self->link ($url, %opt, url => $url);
82			$self->html (q[></code>]);
83			} # url
84
85			sub start_tag ($$%) {
86			my ($self, $tag_name, %opt) = @_;
87	wakaba	1.10	$self->html ('<' . $htescape_value->($tag_name)); # escape for safety
88	wakaba	1.1	if (exists $opt{id}) {
89			my $id = $self->input->id_prefix . $opt{id};
90	wakaba	1.10	$self->html (' id="' . $htescape_value->($id) . '"');
91	wakaba	1.1	delete $opt{id};
92			}
93			for (keys %opt) { # for safety
94	wakaba	1.10	$self->html (' ' . $htescape_value->($_) . '="' .
95			$htescape_value->($opt{$_}) . '"');
96	wakaba	1.1	}
97			$self->html ('>');
98			} # start_tag
99
100			sub end_tag ($$) {
101	wakaba	1.10	shift->html ('</' . $htescape_value->(shift) . '>');
102	wakaba	1.1	} # end_tag
103
104			sub start_section ($%) {
105			my ($self, %opt) = @_;
106	wakaba	1.4
107	wakaba	1.13	my $class = 'section';
108	wakaba	1.4	if (defined $opt{role}) {
109			if ($opt{role} eq 'parse-errors') {
110			$opt{id} \|\|= 'parse-errors';
111	wakaba	1.7	$opt{title} \|\|= 'Parse Errors Section';
112			$opt{short_title} \|\|= 'Parse Errors';
113	wakaba	1.14	$class .= ' errors';
114	wakaba	1.4	delete $opt{role};
115			} elsif ($opt{role} eq 'structure-errors') {
116			$opt{id} \|\|= 'document-errors';
117			$opt{title} \|\|= 'Structural Errors';
118			$opt{short_title} \|\|= 'Struct. Errors';
119	wakaba	1.14	$class .= ' errors';
120	wakaba	1.4	delete $opt{role};
121	wakaba	1.15	} elsif ($opt{role} eq 'transfer-errors') {
122			$opt{id} \|\|= 'transfer-errors';
123			$opt{title} \|\|= 'Transfer Errors';
124			$opt{short_title} \|\|= 'Trans. Errors';
125			$class .= ' errors';
126			delete $opt{role};
127	wakaba	1.4	} elsif ($opt{role} eq 'reformatted') {
128			$opt{id} \|\|= 'document-tree';
129			$opt{title} \|\|= 'Reformatted Document Source';
130			$opt{short_title} \|\|= 'Reformatted';
131	wakaba	1.14	$class .= ' dump';
132	wakaba	1.4	delete $opt{role}
133			} elsif ($opt{role} eq 'tree') {
134			$opt{id} \|\|= 'document-tree';
135			$opt{title} \|\|= 'Document Tree';
136			$opt{short_title} \|\|= 'Tree';
137	wakaba	1.14	$class .= ' dump';
138	wakaba	1.4	delete $opt{role};
139			} elsif ($opt{role} eq 'structure') {
140			$opt{id} \|\|= 'document-structure';
141			$opt{title} \|\|= 'Document Structure';
142			$opt{short_title} \|\|= 'Structure';
143	wakaba	1.14	$class .= ' dump';
144	wakaba	1.4	delete $opt{role};
145	wakaba	1.13	} elsif ($opt{role} eq 'subdoc') {
146			$class .= ' subdoc';
147	wakaba	1.14	delete $opt{role};
148			} elsif ($opt{role} eq 'source') {
149			$opt{id} \|\|= 'source-string';
150			$opt{title} \|\|= 'Document Source';
151			$opt{short_title} \|\|= 'Source';
152			$class .= ' source';
153	wakaba	1.15	delete $opt{role};
154			} elsif ($opt{role} eq 'result') {
155			$opt{id} \|\|= 'result-summary';
156			$opt{title} \|\|= 'Result';
157			$class .= ' result';
158	wakaba	1.13	delete $opt{role};
159	wakaba	1.4	}
160			}
161
162			$self->{section_rank}++;
163	wakaba	1.13	$self->html (qq[<div class="$class"]);
164	wakaba	1.1	if (defined $opt{id}) {
165	wakaba	1.13	my $prefix = $self->input->id_prefix;
166			$opt{parent_id} \|\|= $prefix;
167			my $id = $prefix . $opt{id};
168	wakaba	1.11	$self->html (' id="' . $htescape->($id) . '">');
169	wakaba	1.13	if ($self->{section_rank} == 2 or length $opt{parent_id}) {
170	wakaba	1.11	my $st = $opt{short_title} \|\| $opt{title};
171			push @{$self->{nav}},
172			[$id => $st => $opt{text}];
173
174			$self->start_tag ('script');
175	wakaba	1.13	$self->html (qq[ addSectionLink ('$id', ']);
176	wakaba	1.11	$self->nl_text ($st, text => $opt{text});
177	wakaba	1.12	if (defined $opt{parent_id}) {
178			$self->html (q[', '] . $opt{parent_id});
179			}
180	wakaba	1.11	$self->html (q[') ]);
181			$self->end_tag ('script');
182			}
183			} else {
184			$self->html ('>');
185	wakaba	1.1	}
186	wakaba	1.4	my $section_rank = $self->{section_rank};
187			$section_rank = 6 if $section_rank > 6;
188	wakaba	1.11	$self->html ('<h' . $section_rank . '>');
189	wakaba	1.7	$self->nl_text ($opt{title}, text => $opt{text});
190			$self->html ('</h' . $section_rank . '>');
191	wakaba	1.1	} # start_section
192
193			sub end_section ($) {
194			my $self = shift;
195			$self->html ('</div>');
196			$self->{handle}->flush;
197	wakaba	1.4	$self->{section_rank}--;
198	wakaba	1.1	} # end_section
199	wakaba	1.4
200			sub start_error_list ($%) {
201			my ($self, %opt) = @_;
202
203			if (defined $opt{role}) {
204			if ($opt{role} eq 'parse-errors') {
205			$opt{id} \|\|= 'parse-errors-list';
206			delete $opt{role};
207			} elsif ($opt{role} eq 'structure-errors') {
208			$opt{id} \|\|= 'document-errors-list';
209			delete $opt{role};
210			}
211			}
212
213			$self->start_tag ('dl', %opt);
214			} # start_error_list
215
216			sub end_error_list ($%) {
217			my ($self, %opt) = @_;
218
219			if (defined $opt{role}) {
220			if ($opt{role} eq 'parse-errors') {
221			delete $opt{role};
222			$self->end_tag ('dl');
223			## NOTE: For parse error list, the \|add_source_to_parse_error_list\|
224			## method is invoked at the end of \|generate_source_string_section\|,
225			## since that generation method is invoked after the error list
226			## is generated.
227			} elsif ($opt{role} eq 'structure-errors') {
228			delete $opt{role};
229			$self->end_tag ('dl');
230			$self->add_source_to_parse_error_list ('document-errors-list');
231			} else {
232			$self->end_tag ('dl');
233			}
234			} else {
235			$self->end_tag ('dl');
236			}
237			} # end_error_list
238
239			sub add_source_to_parse_error_list ($$) {
240			my $self = shift;
241
242			$self->script (q[addSourceToParseErrorList ('] . $self->input->id_prefix .
243	wakaba	1.9	q[', '] . shift () . q[')]);
244	wakaba	1.4	} # add_source_to_parse_error_list
245	wakaba	1.1
246			sub start_code_block ($) {
247			shift->html ('<pre><code>');
248			} # start_code_block
249
250			sub end_code_block ($) {
251			shift->html ('</code></pre>');
252			} # end_code_block
253
254	wakaba	1.3	sub code ($$;%) {
255			my ($self, $content, %opt) = @_;
256			$self->start_tag ('code', %opt);
257			$self->text ($content);
258			$self->html ('</code>');
259	wakaba	1.1	} # code
260
261	wakaba	1.3	sub script ($$;%) {
262			my ($self, $content, %opt) = @_;
263			$self->start_tag ('script', %opt);
264			$self->html ($content);
265			$self->html ('</script>');
266			} # script
267
268			sub dt ($$;%) {
269			my ($self, $content, %opt) = @_;
270			$self->start_tag ('dt', %opt);
271	wakaba	1.7	$self->nl_text ($content, text => $opt{text});
272	wakaba	1.3	} # dt
273
274	wakaba	1.9	sub select ($$%) {
275			my ($self, $options, %opt) = @_;
276
277			my $selected = $opt{selected};
278			delete $opt{selected};
279
280			$self->start_tag ('select', %opt);
281
282			my @options = @$options;
283			while (@options) {
284			my $opt = shift @options;
285			if ($opt->{options}) {
286			$self->html ('<optgroup label="');
287			$self->nl_text ($opt->{label});
288			$self->html ('">');
289			unshift @options, @{$opt->{options}}, {end_options => 1};
290			} elsif ($opt->{end_options}) {
291			$self->end_tag ('optgroup');
292			} else {
293			$self->start_tag ('option', value => $opt->{value},
294			((defined $selected and $opt->{value} eq $selected)
295			? (selected => '') : ()));
296			$self->nl_text (defined $opt->{label} ? $opt->{label} : $opt->{value});
297			}
298			}
299
300			$self->end_tag ('select');
301			} # select
302
303	wakaba	1.1	sub link ($$%) {
304			my ($self, $content, %opt) = @_;
305	wakaba	1.2	$self->start_tag ('a', %opt, href => $opt{url});
306	wakaba	1.1	$self->text ($content);
307			$self->html ('</a>');
308			} # link
309
310			sub xref ($$%) {
311			my ($self, $content, %opt) = @_;
312			$self->html ('<a href="#' . $htescape->($self->input->id_prefix . $opt{target}) . '">');
313	wakaba	1.7	$self->nl_text ($content, text => $opt{text});
314	wakaba	1.1	$self->html ('</a>');
315			} # xref
316
317	wakaba	1.2	sub link_to_webhacc ($$%) {
318			my ($self, $content, %opt) = @_;
319			$opt{url} = './?uri=' . $self->encode_url_component ($opt{url});
320			$self->link ($content, %opt);
321			} # link_to_webhacc
322
323	wakaba	1.3	my $get_node_path = sub ($) {
324			my $node = shift;
325			my @r;
326			while (defined $node) {
327			my $rs;
328			if ($node->node_type == 1) {
329			$rs = $node->node_name;
330			$node = $node->parent_node;
331			} elsif ($node->node_type == 2) {
332			$rs = '@' . $node->node_name;
333			$node = $node->owner_element;
334			} elsif ($node->node_type == 3) {
335			$rs = '"' . $node->data . '"';
336			$node = $node->parent_node;
337			} elsif ($node->node_type == 9) {
338			@r = ('') unless @r;
339			$rs = '';
340			$node = $node->parent_node;
341			} else {
342			$rs = '#' . $node->node_type;
343			$node = $node->parent_node;
344			}
345			unshift @r, $rs;
346			}
347			return join '/', @r;
348			}; # $get_node_path
349
350	wakaba	1.10	my $get_object_path = sub ($) {
351			my $node = shift;
352			my @r;
353			while (defined $node) {
354			my $ref = ref $node;
355			$ref =~ /([^:]+)$/;
356			my $rs = $1;
357			my $node_name = $node->node_name;
358			if (defined $node_name) {
359			$rs .= ' <code>' . $htescape->($node_name) . '</code>';
360			}
361			$node = undef;
362			unshift @r, $rs;
363			}
364			return join '/', @r;
365			}; # $get_object_path
366
367	wakaba	1.3	sub node_link ($$) {
368			my ($self, $node) = @_;
369	wakaba	1.10	if ($node->isa ('Message::IF::Node')) {
370			$self->xref ($get_node_path->($node), target => 'node-' . refaddr $node);
371			} else {
372			$self->html ($get_object_path->($node));
373			}
374	wakaba	1.3	} # node_link
375
376	wakaba	1.7	{
377			my $Msg = {};
378
379			sub load_text_catalog ($$) {
380			my $self = shift;
381
382			my $lang = shift; # MUST be a canonical lang name
383			my $file_name = qq[cc-msg.$lang.txt];
384			$lang = 'en' unless -f $file_name;
385			$self->{primary_language} = $lang;
386
387			open my $file, '<:utf8', $file_name or die "$0: $file_name: $!";
388			while (<$file>) {
389			if (s/^([^;]+);([^;]*);//) {
390			my ($type, $cls, $msg) = ($1, $2, $_);
391			$msg =~ tr/\x0D\x0A//d;
392			$Msg->{$type} = [$cls, $msg];
393			}
394			}
395			} # load_text_catalog
396
397			sub nl_text ($$;%) {
398			my ($self, $type, %opt) = @_;
399			my $node = $opt{node};
400
401			my @arg;
402			{
403			if (defined $Msg->{$type}) {
404			my $msg = $Msg->{$type}->[1];
405			if ($msg =~ /<var>/) {
406			$msg =~ s{<var>\$([0-9]+)</var>}{
407			defined $arg[$1] ? $htescape->($arg[$1]) : '(undef)';
408			}ge;
409			$msg =~ s{<var>{\@([A-Za-z0-9:_.-]+)}</var>}{
410			UNIVERSAL::can ($node, 'get_attribute_ns')
411			? $htescape->($node->get_attribute_ns (undef, $1)) : ''
412			}ge;
413			$msg =~ s{<var>{\@}</var>}{
414			UNIVERSAL::can ($node, 'value') ? $htescape->($node->value) : ''
415			}ge;
416			$msg =~ s{<var>{text}</var>}{
417			defined $opt{text} ? $htescape->($opt{text}) : ''
418			}ge;
419			$msg =~ s{<var>{local-name}</var>}{
420			UNIVERSAL::can ($node, 'manakai_local_name')
421			? $htescape->($node->manakai_local_name) : ''
422			}ge;
423			$msg =~ s{<var>{element-local-name}</var>}{
424			(UNIVERSAL::can ($node, 'owner_element') and
425			$node->owner_element)
426			? $htescape->($node->owner_element->manakai_local_name) : ''
427			}ge;
428			}
429			$self->html ($msg);
430			return;
431			} elsif ($type =~ s/:([^:]*)$//) {
432			unshift @arg, $1;
433			redo;
434			}
435			}
436			$self->text ($type);
437			} # nl_text
438
439			}
440
441	wakaba	1.1	sub nav_list ($) {
442			my $self = shift;
443			$self->html (q[<ul class="navigation" id="nav-items">]);
444			for (@{$self->{nav}}) {
445	wakaba	1.7	$self->html (qq[<li><a href="#@{[$htescape->($_->[0])]}">]);
446			$self->nl_text ($_->[1], text => $_->[2]);
447			$self->html ('</a>');
448	wakaba	1.1	}
449			$self->html ('</ul>');
450			} # nav_list
451	wakaba	1.2
452	wakaba	1.5	sub http_header ($) {
453			shift->html (qq[Content-Type: text/html; charset=utf-8\n\n]);
454			} # http_header
455
456			sub http_error ($$) {
457			my $self = shift;
458			my $code = 0+shift;
459			my $text = {
460			404 => 'Not Found',
461			}->{$code};
462			$self->html (qq[Status: $code $text\nContent-Type: text/html ; charset=us-ascii\n\n$code $text]);
463			} # http_error
464
465			sub html_header ($) {
466			my $self = shift;
467	wakaba	1.7	$self->html (q[<!DOCTYPE html>]);
468			$self->start_tag ('html', lang => $self->{primary_language});
469			$self->html (q[<head><title>]);
470			$self->nl_text (q[WebHACC:Title]);
471			$self->html (q[</title>
472	wakaba	1.5	<link rel="stylesheet" href="../cc-style.css" type="text/css">
473	wakaba	1.8	<script src="../cc-script.js"></script>
474	wakaba	1.5	</head>
475	wakaba	1.11	<body onclick=" return onbodyclick (event) " onload=" onbodyload () ">
476	wakaba	1.7	<h1>]);
477			$self->nl_text (q[WebHACC:Heading]);
478	wakaba	1.11	$self->html (q[</h1><script> insertNavSections () </script>]);
479	wakaba	1.5	} # html_header
480	wakaba	1.9
481			sub generate_input_section ($$) {
482			my ($out, $cgi) = @_;
483
484			my $options = sub ($) {
485			my $context = shift;
486
487	wakaba	1.12	$out->html (q[<div class="details default"><p class=legend onclick="nextSibling.style.display = nextSibling.style.display == 'block' ? 'none' : 'block'; parentNode.className = nextSibling.style.display == 'none' ? 'details' : 'details open'">]);
488	wakaba	1.9	$out->nl_text (q[Options]);
489			$out->start_tag ('div');
490
491			if ($context eq 'url') {
492			$out->start_tag ('p');
493			$out->start_tag ('label');
494			$out->start_tag ('input', type => 'checkbox', name => 'error-page',
495			value => 1,
496			($cgi->get_parameter ('error-page')
497			? (checked => '') : ()));
498			$out->nl_text ('Check error page');
499			$out->end_tag ('label');
500			}
501
502			$out->start_tag ('p');
503			$out->start_tag ('label');
504			$out->nl_text (q[Content type]);
505			$out->text (': ');
506			$out->select ([
507			{value => '', label => 'As specified'},
508			{value => 'application/atom+xml'},
509			{value => 'application/xhtml+xml'},
510			{value => 'application/xml'},
511			{value => 'text/html'},
512			{value => 'text/xml'},
513			{value => 'text/css'},
514			{value => 'text/cache-manifest'},
515			{value => 'text/x-webidl'},
516			], name => 'i', selected => scalar $cgi->get_parameter ('i'));
517			$out->end_tag ('label');
518
519			if ($context ne 'text') {
520			$out->start_tag ('p');
521			$out->start_tag ('label');
522			$out->nl_text (q[Charset]);
523			$out->text (q[: ]);
524			$out->select ([
525			{value => '', label => 'As specified'},
526			{label => 'Japanese charsets', options => [
527			{value => 'Windows-31J'},
528			{value => 'Shift_JIS'},
529			{value => 'EUC-JP'},
530			{value => 'ISO-2022-JP'},
531			]},
532			{label => 'European charsets', options => [
533			{value => 'Windows-1252'},
534			{value => 'ISO-8859-1'},
535			{value => 'US-ASCII'},
536			]},
537			{label => 'Asian charsets', options => [
538			{value => 'Windows-874'},
539			{value => 'ISO-8859-11'},
540			{value => 'TIS-620'},
541			]},
542			{label => 'Unicode charsets', options => [
543			{value => 'UTF-8'},
544			{value => 'UTF-8n'},
545			]},
546			], name => 'charset',
547			selected => scalar $cgi->get_parameter ('charset'));
548			$out->end_tag ('label');
549			}
550
551			if ($context eq 'text') {
552			$out->start_tag ('p');
553			$out->start_tag ('label');
554			$out->nl_text ('Setting innerHTML');
555			$out->text (': ');
556			$out->start_tag ('input', name => 'e',
557			value => scalar $cgi->get_parameter ('e'));
558			$out->end_tag ('label');
559			}
560
561			$out->html (q[</div></div>]);
562			}; # $options
563
564			$out->start_section (id => 'input', title => 'Input');
565	wakaba	1.12	$out->html (q[<script> insertNavSections ('input') </script>]);
566	wakaba	1.9
567	wakaba	1.12	$out->start_section (id => 'input-url', title => 'By URL',
568			parent_id => 'input');
569	wakaba	1.10	$out->start_tag ('form', action => './#result-summary',
570			'accept-charset' => 'utf-8',
571	wakaba	1.9	method => 'get');
572			$out->start_tag ('input', type => 'hidden', name => '_charset_');
573
574			$out->start_tag ('p');
575			$out->start_tag ('label');
576			$out->nl_text ('URL');
577			$out->text (': ');
578			$out->start_tag ('input',
579			name => 'uri',
580			type => 'url',
581			value => $cgi->get_parameter ('uri'));
582			$out->end_tag ('label');
583
584			$out->start_tag ('p');
585			$out->start_tag ('button', type => 'submit');
586			$out->nl_text ('Check');
587	wakaba	1.12	$out->end_tag ('button');
588
589			$options->('url');
590	wakaba	1.9
591			$out->end_tag ('form');
592			$out->end_section;
593
594			$out->end_tag ('fieldset');
595
596			## TODO: File upload
597
598	wakaba	1.12	$out->start_section (id => 'input-text', title => 'By direct input',
599			parent_id => 'input');
600	wakaba	1.10	$out->start_tag ('form', action => './#result-summary',
601			'accept-charset' => 'utf-8',
602	wakaba	1.9	method => 'post');
603			$out->start_tag ('input', type => 'hidden', name => '_charset_');
604
605			$out->start_tag ('p');
606			$out->start_tag ('label');
607			$out->nl_text ('Document source to check');
608			$out->text (': ');
609			$out->start_tag ('br');
610			$out->start_tag ('textarea',
611			name => 's');
612			my $s = $cgi->get_parameter ('s');
613	wakaba	1.10	$out->html ($htescape_value->($s)) if defined $s;
614	wakaba	1.9	$out->end_tag ('textarea');
615			$out->end_tag ('label');
616
617			$out->start_tag ('p');
618			$out->start_tag ('button', type => 'submit',
619			onclick => 'form.method = form.s.value.length > 512 ? "post" : "get"');
620			$out->nl_text ('Check');
621			$out->end_tag ('button');
622
623	wakaba	1.12	$options->('text');
624
625	wakaba	1.9	$out->end_tag ('form');
626			$out->end_section;
627	wakaba	1.12
628			$out->script (q[
629			if (!document.webhaccNavigated &&
630			document.getElementsByTagName ('textarea')[0].value.length > 0) {
631			showTab ('input-text');
632			document.webhaccNavigated = false;
633			}
634			]);
635	wakaba	1.9
636			$out->end_section;
637			} # generate_input_section
638	wakaba	1.2
639			sub encode_url_component ($$) {
640			shift;
641			require Encode;
642			my $s = Encode::encode ('utf8', shift);
643			$s =~ s/([^0-9A-Za-z_.~-])/sprintf '%%%02X', ord $1/ge;
644			return $s;
645			} # encode_url_component
646	wakaba	1.1
647			1;