whatpm/Whatpm/NanoDOM.pm

=head1 NAME

Whatpm::NanoDOM - A Non-Conforming Implementation of DOM Subset

=head1 DESCRIPTION

The C<Whatpm::NanoDOM> module contains a non-conforming implementation
of a subset of DOM.  It is the intention that this module is
used only for the purpose of testing the C<Whatpm::HTML> module.

See source code if you would like to know what it does.

=cut

package Whatpm::NanoDOM;
use strict;
our $VERSION=do{my @r=(q$Revision: 1.53 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};

require Scalar::Util;

package Whatpm::NanoDOM::DOMImplementation;

sub create_document ($) {
  return Whatpm::NanoDOM::Document->new;
} # create_document

package Whatpm::NanoDOM::Node;

sub new ($) {
  my $class = shift;
  my $self = bless {}, $class;
  return $self;
} # new

sub parent_node ($) {
  return shift->{parent_node};
} # parent_node

sub manakai_parent_element ($) {
  my $self = shift;
  my $parent = $self->{parent_node};
  while (defined $parent) {
    if ($parent->node_type == 1) {
      return $parent;
    } else {
      $parent = $parent->{parent_node};
    }
  }
  return undef;
} # manakai_parent_element

sub child_nodes ($) {
  return shift->{child_nodes} || [];
} # child_nodes

## NOTE: Only applied to Elements and Documents
sub append_child ($$) {
  my ($self, $new_child) = @_;
  if (defined $new_child->{parent_node}) {
    my $parent_list = $new_child->{parent_node}->{child_nodes};
    for (0..$#$parent_list) {
      if ($parent_list->[$_] eq $new_child) {
        splice @$parent_list, $_, 1;
      }
    }
  }
  push @{$self->{child_nodes}}, $new_child;
  $new_child->{parent_node} = $self;
  Scalar::Util::weaken ($new_child->{parent_node});
  return $new_child;
} # append_child

## NOTE: Only applied to Elements and Documents
sub insert_before ($$;$) {
  my ($self, $new_child, $ref_child) = @_;
  if (defined $new_child->{parent_node}) {
    my $parent_list = $new_child->{parent_node}->{child_nodes};
    for (0..$#$parent_list) {
      if ($parent_list->[$_] eq $new_child) {
        splice @$parent_list, $_, 1;
      }
    }
  }
  my $i = @{$self->{child_nodes}};
  if (defined $ref_child) {
    for (0..$#{$self->{child_nodes}}) {
      if ($self->{child_nodes}->[$_] eq $ref_child) {
        $i = $_;
        last;
      }
    }
  }
  splice @{$self->{child_nodes}}, $i, 0, $new_child;
  $new_child->{parent_node} = $self;
  Scalar::Util::weaken ($new_child->{parent_node});
  return $new_child;
} # insert_before

## NOTE: Only applied to Elements and Documents
sub remove_child ($$) {
  my ($self, $old_child) = @_;
  my $parent_list = $self->{child_nodes};
  for (0..$#$parent_list) {
    if ($parent_list->[$_] eq $old_child) {
      splice @$parent_list, $_, 1;
    }
  }
  delete $old_child->{parent_node};
  return $old_child;
} # remove_child

## NOTE: Only applied to Elements and Documents
sub has_child_nodes ($) {
  return @{shift->{child_nodes}} > 0;
} # has_child_nodes

## NOTE: Only applied to Elements and Documents
sub first_child ($) {
  my $self = shift;
  return $self->{child_nodes}->[0];
} # first_child

## NOTE: Only applied to Elements and Documents
sub last_child ($) {
  my $self = shift;
  return @{$self->{child_nodes}} ? $self->{child_nodes}->[-1] : undef;
} # last_child

## NOTE: Only applied to Elements and Documents
sub previous_sibling ($) {
  my $self = shift;
  my $parent = $self->{parent_node};
  return undef unless defined $parent;
  my $r;
  for (@{$parent->{child_nodes}}) {
    if ($_ eq $self) {
      return $r;
    } else {
      $r = $_;
    }
  }
  return undef;
} # previous_sibling

sub prefix ($;$) {
  my $self = shift;
  if (@_) {
    $self->{prefix} = shift;
  }
  return $self->{prefix};
} # prefix

sub ELEMENT_NODE () { 1 }
sub ATTRIBUTE_NODE () { 2 }
sub TEXT_NODE () { 3 }
sub CDATA_SECTION_NODE () { 4 }
sub ENTITY_REFERENCE_NODE () { 5 }
sub ENTITY_NODE () { 6 }
sub PROCESSING_INSTRUCTION_NODE () { 7 }
sub COMMENT_NODE () { 8 }
sub DOCUMENT_NODE () { 9 }
sub DOCUMENT_TYPE_NODE () { 10 }
sub DOCUMENT_FRAGMENT_NODE () { 11 }
sub NOTATION_NODE () { 12 }

package Whatpm::NanoDOM::Document;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($) {
  my $self = shift->SUPER::new;
  $self->{child_nodes} = [];
  return $self;
} # new

## A manakai extension
sub manakai_append_text ($$) {
  my $self = shift;
  if (@{$self->{child_nodes}} and
      $self->{child_nodes}->[-1]->node_type == 3) {
    $self->{child_nodes}->[-1]->manakai_append_text (shift);
  } else {
    my $text = $self->create_text_node (shift);
    $self->append_child ($text);
  }
} # manakai_append_text

sub node_type () { 9 }

sub strict_error_checking {
  return 0;
} # strict_error_checking

sub create_text_node ($$) {
  shift;
  return Whatpm::NanoDOM::Text->new (shift);
} # create_text_node

sub create_comment ($$) {
  shift;
  return Whatpm::NanoDOM::Comment->new (shift);
} # create_comment

## The second parameter only supports manakai extended way
## to specify qualified name - "[$prefix, $local_name]"
sub create_element_ns ($$$) {
  my ($self, $nsuri, $qn) = @_;
  return Whatpm::NanoDOM::Element->new ($self, $nsuri, $qn->[0], $qn->[1]);
} # create_element_ns

## A manakai extension
sub create_document_type_definition ($$) {
  shift;
  return Whatpm::NanoDOM::DocumentType->new (shift);
} # create_document_type_definition

sub implementation ($) {
  return 'Whatpm::NanoDOM::DOMImplementation';
} # implementation

sub document_element ($) {
  my $self = shift;
  for (@{$self->child_nodes}) {
    if ($_->node_type == 1) {
      return $_;
    }
  }
  return undef;
} # document_element

sub adopt_node ($$) {
  my @node = ($_[1]);
  while (@node) {
    my $node = shift @node;
    $node->{owner_document} = $_[0];
    Scalar::Util::weaken ($node->{owner_document});
    push @node, @{$node->child_nodes};
    push @node, @{$node->attributes or []} if $node->can ('attributes');
  }
  return $_[1];
} # adopt_node

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

sub compat_mode ($) {
  if ($_[0]->{manakai_is_html}) {
    if ($_[0]->{manakai_compat_mode} eq 'quirks') {
      return 'BackCompat';
    }
  }
  return 'CSS1Compat';
} # compat_mode

sub manakai_compat_mode ($;$) {
  if ($_[0]->{manakai_is_html}) {
    if (@_ > 1 and defined $_[1] and
        {'no quirks' => 1, 'limited quirks' => 1, 'quirks' => 1}->{$_[1]}) {
      $_[0]->{manakai_compat_mode} = $_[1];
    }
    return $_[0]->{manakai_compat_mode} || 'no quirks';
  } else {
    return 'no quirks';
  }
} # manakai_compat_mode

package Whatpm::NanoDOM::Element;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$$$$) {
  my $self = shift->SUPER::new;
  $self->{owner_document} = shift;
  Scalar::Util::weaken ($self->{owner_document});
  $self->{namespace_uri} = shift;
  $self->{prefix} = shift;
  $self->{local_name} = shift;
  $self->{attributes} = {};
  $self->{child_nodes} = [];
  return $self;
} # new

sub owner_document ($) {
  return shift->{owner_document};
} # owner_document

sub clone_node ($$) {
  my ($self, $deep) = @_; ## NOTE: Deep cloning is not supported
  my $clone = bless {
    namespace_uri => $self->{namespace_uri},
    prefix => $self->{prefix},
    local_name => $self->{local_name},      
    child_nodes => [],
  }, ref $self;
  for my $ns (keys %{$self->{attributes}}) {
    for my $ln (keys %{$self->{attributes}->{$ns}}) {
      my $attr = $self->{attributes}->{$ns}->{$ln};
      $clone->{attributes}->{$ns}->{$ln} = bless {
        namespace_uri => $attr->{namespace_uri},
        prefix => $attr->{prefix},
        local_name => $attr->{local_name},
        value => $attr->{value},
      }, ref $self->{attributes}->{$ns}->{$ln};
    }
  }
  return $clone;
} # clone

## A manakai extension
sub manakai_append_text ($$) {
  my $self = shift;
  if (@{$self->{child_nodes}} and
      $self->{child_nodes}->[-1]->node_type == 3) {
    $self->{child_nodes}->[-1]->manakai_append_text (shift);
  } else {
    my $text = Whatpm::NanoDOM::Text->new (shift);
    $self->append_child ($text);
  }
} # manakai_append_text

sub text_content ($) {
  my $self = shift;
  my $r = '';
  for my $child (@{$self->child_nodes}) {
    if ($child->can ('data')) {
      $r .= $child->data;
    } else {
      $r .= $child->text_content;
    }
  }
  return $r;
} # text_content

sub attributes ($) {
  my $self = shift;
  my $r = [];
  ## Order MUST be stable
  for my $ns (sort {$a cmp $b} keys %{$self->{attributes}}) {
    for my $ln (sort {$a cmp $b} keys %{$self->{attributes}->{$ns}}) {
      push @$r, $self->{attributes}->{$ns}->{$ln}
        if defined $self->{attributes}->{$ns}->{$ln};
    }
  }
  return $r;
} # attributes

sub local_name ($) { # TODO: HTML5 case
  return shift->{local_name};
} # local_name

sub manakai_local_name ($) {
  return shift->{local_name}; # no case fixing for HTML5
} # manakai_local_name

sub namespace_uri ($) {
  return shift->{namespace_uri};
} # namespace_uri

sub manakai_element_type_match ($$$) {
  my ($self, $nsuri, $ln) = @_;
  if (defined $nsuri) {
    if (defined $self->{namespace_uri} and $nsuri eq $self->{namespace_uri}) {
      return ($ln eq $self->{local_name});
    } else {
      return 0;
    }
  } else {
    if (not defined $self->{namespace_uri}) {
      return ($ln eq $self->{local_name});
    } else {
      return 0;
    }
  }
} # manakai_element_type_match

sub node_type { 1 }

## TODO: HTML5 capitalization
sub tag_name ($) {
  my $self = shift;
  if (defined $self->{prefix}) {
    return $self->{prefix} . ':' . $self->{local_name};
  } else {
    return $self->{local_name};
  }
} # tag_name

sub get_attribute_ns ($$$) {
  my ($self, $nsuri, $ln) = @_;
  $nsuri = '' unless defined $nsuri;
  return defined $self->{attributes}->{$nsuri}->{$ln}
    ? $self->{attributes}->{$nsuri}->{$ln}->value : undef;
} # get_attribute_ns

sub get_attribute_node_ns ($$$) {
  my ($self, $nsuri, $ln) = @_;
  $nsuri = '' unless defined $nsuri;
  return $self->{attributes}->{$nsuri}->{$ln};
} # get_attribute_node_ns

sub has_attribute_ns ($$$) {
  my ($self, $nsuri, $ln) = @_;
  $nsuri = '' unless defined $nsuri;
  return defined $self->{attributes}->{$nsuri}->{$ln};
} # has_attribute_ns

## The second parameter only supports manakai extended way
## to specify qualified name - "[$prefix, $local_name]"
sub set_attribute_ns ($$$$) {
  my ($self, $nsuri, $qn, $value) = @_;
  $self->{attributes}->{$nsuri}->{$qn->[1]}
    = Whatpm::NanoDOM::Attr->new ($self, $nsuri, $qn->[0], $qn->[1], $value);
} # set_attribute_ns

package Whatpm::NanoDOM::Attr;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$$$$$) {
  my $self = shift->SUPER::new;
  $self->{owner_element} = shift;
  Scalar::Util::weaken ($self->{owner_element});
  $self->{namespace_uri} = shift;
  $self->{prefix} = shift;
  $self->{local_name} = shift;
  $self->{value} = shift;
  return $self;
} # new

sub namespace_uri ($) {
  return shift->{namespace_uri};
} # namespace_uri

sub manakai_local_name ($) {
  return shift->{local_name};
} # manakai_local_name

sub node_type { 2 }

sub owner_document ($) {
  return shift->owner_element->owner_document;
} # owner_document

## TODO: HTML5 case stuff?
sub name ($) {
  my $self = shift;
  if (defined $self->{prefix}) {
    return $self->{prefix} . ':' . $self->{local_name};
  } else {
    return $self->{local_name};
  }
} # name

sub value ($) {
  return shift->{value};
} # value

sub owner_element ($) {
  return shift->{owner_element};
} # owner_element

package Whatpm::NanoDOM::CharacterData;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$) {
  my $self = shift->SUPER::new;
  $self->{data} = shift;
  return $self;
} # new

## A manakai extension
sub manakai_append_text ($$) {
  my ($self, $s) = @_;
  $self->{data} .= $s;
} # manakai_append_text

sub data ($) {
  return shift->{data};
} # data

package Whatpm::NanoDOM::Text;
push our @ISA, 'Whatpm::NanoDOM::CharacterData';

sub node_type () { 3 }

package Whatpm::NanoDOM::Comment;
push our @ISA, 'Whatpm::NanoDOM::CharacterData';

sub node_type () { 8 }

package Whatpm::NanoDOM::DocumentType;
push our @ISA, 'Whatpm::NanoDOM::Node';

sub new ($$) {
  my $self = shift->SUPER::new;
  $self->{name} = shift;
  return $self;
} # new

sub node_type () { 10 }

sub name ($) {
  return shift->{name};
} # name

=head1 SEE ALSO

L<Whatpm::HTML>

=head1 AUTHOR

Wakaba <w@suika.fam.cx>.

=head1 LICENSE

Copyright 2007 Wakaba <w@suika.fam.cx>

This library is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.

=cut

1;
# $Date: 2007/07/16 07:48:19 $
1	wakaba	1.1	=head1 NAME
2
3	wakaba	1.2	Whatpm::NanoDOM - A Non-Conforming Implementation of DOM Subset
4	wakaba	1.1
5			=head1 DESCRIPTION
6
7	wakaba	1.2	The C<Whatpm::NanoDOM> module contains a non-conforming implementation
8	wakaba	1.1	of a subset of DOM. It is the intention that this module is
9	wakaba	1.2	used only for the purpose of testing the C<Whatpm::HTML> module.
10	wakaba	1.1
11			See source code if you would like to know what it does.
12
13			=cut
14
15	wakaba	1.2	package Whatpm::NanoDOM;
16	wakaba	1.1	use strict;
17	wakaba	1.15	our $VERSION=do{my @r=(q$Revision: 1.53 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
18	wakaba	1.1
19	wakaba	1.3	require Scalar::Util;
20
21			package Whatpm::NanoDOM::DOMImplementation;
22
23			sub create_document ($) {
24			return Whatpm::NanoDOM::Document->new;
25			} # create_document
26
27	wakaba	1.2	package Whatpm::NanoDOM::Node;
28	wakaba	1.1
29			sub new ($) {
30			my $class = shift;
31			my $self = bless {}, $class;
32			return $self;
33			} # new
34
35			sub parent_node ($) {
36			return shift->{parent_node};
37			} # parent_node
38
39	wakaba	1.4	sub manakai_parent_element ($) {
40			my $self = shift;
41			my $parent = $self->{parent_node};
42			while (defined $parent) {
43			if ($parent->node_type == 1) {
44			return $parent;
45			} else {
46			$parent = $parent->{parent_node};
47			}
48			}
49			return undef;
50			} # manakai_parent_element
51
52	wakaba	1.1	sub child_nodes ($) {
53	wakaba	1.7	return shift->{child_nodes} \|\| [];
54	wakaba	1.1	} # child_nodes
55
56			## NOTE: Only applied to Elements and Documents
57			sub append_child ($$) {
58			my ($self, $new_child) = @_;
59			if (defined $new_child->{parent_node}) {
60			my $parent_list = $new_child->{parent_node}->{child_nodes};
61			for (0..$#$parent_list) {
62			if ($parent_list->[$_] eq $new_child) {
63			splice @$parent_list, $_, 1;
64			}
65			}
66			}
67			push @{$self->{child_nodes}}, $new_child;
68	wakaba	1.3	$new_child->{parent_node} = $self;
69			Scalar::Util::weaken ($new_child->{parent_node});
70	wakaba	1.1	return $new_child;
71			} # append_child
72
73			## NOTE: Only applied to Elements and Documents
74			sub insert_before ($$;$) {
75			my ($self, $new_child, $ref_child) = @_;
76			if (defined $new_child->{parent_node}) {
77			my $parent_list = $new_child->{parent_node}->{child_nodes};
78			for (0..$#$parent_list) {
79			if ($parent_list->[$_] eq $new_child) {
80			splice @$parent_list, $_, 1;
81			}
82			}
83			}
84			my $i = @{$self->{child_nodes}};
85			if (defined $ref_child) {
86			for (0..$#{$self->{child_nodes}}) {
87			if ($self->{child_nodes}->[$_] eq $ref_child) {
88			$i = $_;
89			last;
90			}
91			}
92			}
93			splice @{$self->{child_nodes}}, $i, 0, $new_child;
94	wakaba	1.5	$new_child->{parent_node} = $self;
95			Scalar::Util::weaken ($new_child->{parent_node});
96	wakaba	1.1	return $new_child;
97			} # insert_before
98
99			## NOTE: Only applied to Elements and Documents
100			sub remove_child ($$) {
101			my ($self, $old_child) = @_;
102			my $parent_list = $self->{child_nodes};
103			for (0..$#$parent_list) {
104			if ($parent_list->[$_] eq $old_child) {
105			splice @$parent_list, $_, 1;
106			}
107			}
108			delete $old_child->{parent_node};
109			return $old_child;
110			} # remove_child
111
112			## NOTE: Only applied to Elements and Documents
113			sub has_child_nodes ($) {
114			return @{shift->{child_nodes}} > 0;
115			} # has_child_nodes
116
117			## NOTE: Only applied to Elements and Documents
118	wakaba	1.8	sub first_child ($) {
119			my $self = shift;
120			return $self->{child_nodes}->[0];
121			} # first_child
122
123			## NOTE: Only applied to Elements and Documents
124	wakaba	1.1	sub last_child ($) {
125			my $self = shift;
126			return @{$self->{child_nodes}} ? $self->{child_nodes}->[-1] : undef;
127			} # last_child
128
129			## NOTE: Only applied to Elements and Documents
130			sub previous_sibling ($) {
131			my $self = shift;
132			my $parent = $self->{parent_node};
133			return undef unless defined $parent;
134			my $r;
135			for (@{$parent->{child_nodes}}) {
136			if ($_ eq $self) {
137			return $r;
138			} else {
139			$r = $_;
140			}
141			}
142			return undef;
143			} # previous_sibling
144
145	wakaba	1.6	sub prefix ($;$) {
146			my $self = shift;
147			if (@_) {
148			$self->{prefix} = shift;
149			}
150			return $self->{prefix};
151			} # prefix
152
153	wakaba	1.1	sub ELEMENT_NODE () { 1 }
154			sub ATTRIBUTE_NODE () { 2 }
155			sub TEXT_NODE () { 3 }
156			sub CDATA_SECTION_NODE () { 4 }
157			sub ENTITY_REFERENCE_NODE () { 5 }
158			sub ENTITY_NODE () { 6 }
159			sub PROCESSING_INSTRUCTION_NODE () { 7 }
160			sub COMMENT_NODE () { 8 }
161			sub DOCUMENT_NODE () { 9 }
162			sub DOCUMENT_TYPE_NODE () { 10 }
163			sub DOCUMENT_FRAGMENT_NODE () { 11 }
164			sub NOTATION_NODE () { 12 }
165
166	wakaba	1.2	package Whatpm::NanoDOM::Document;
167			push our @ISA, 'Whatpm::NanoDOM::Node';
168	wakaba	1.1
169			sub new ($) {
170			my $self = shift->SUPER::new;
171			$self->{child_nodes} = [];
172			return $self;
173			} # new
174
175			## A manakai extension
176			sub manakai_append_text ($$) {
177			my $self = shift;
178			if (@{$self->{child_nodes}} and
179			$self->{child_nodes}->[-1]->node_type == 3) {
180			$self->{child_nodes}->[-1]->manakai_append_text (shift);
181			} else {
182			my $text = $self->create_text_node (shift);
183			$self->append_child ($text);
184			}
185			} # manakai_append_text
186
187			sub node_type () { 9 }
188
189			sub strict_error_checking {
190			return 0;
191			} # strict_error_checking
192
193			sub create_text_node ($$) {
194			shift;
195	wakaba	1.2	return Whatpm::NanoDOM::Text->new (shift);
196	wakaba	1.1	} # create_text_node
197
198			sub create_comment ($$) {
199			shift;
200	wakaba	1.2	return Whatpm::NanoDOM::Comment->new (shift);
201	wakaba	1.1	} # create_comment
202
203			## The second parameter only supports manakai extended way
204			## to specify qualified name - "[$prefix, $local_name]"
205			sub create_element_ns ($$$) {
206			my ($self, $nsuri, $qn) = @_;
207	wakaba	1.3	return Whatpm::NanoDOM::Element->new ($self, $nsuri, $qn->[0], $qn->[1]);
208	wakaba	1.1	} # create_element_ns
209
210			## A manakai extension
211			sub create_document_type_definition ($$) {
212			shift;
213	wakaba	1.2	return Whatpm::NanoDOM::DocumentType->new (shift);
214	wakaba	1.1	} # create_document_type_definition
215
216	wakaba	1.3	sub implementation ($) {
217			return 'Whatpm::NanoDOM::DOMImplementation';
218			} # implementation
219
220	wakaba	1.4	sub document_element ($) {
221			my $self = shift;
222			for (@{$self->child_nodes}) {
223			if ($_->node_type == 1) {
224			return $_;
225			}
226			}
227			return undef;
228			} # document_element
229
230	wakaba	1.12	sub adopt_node ($$) {
231	wakaba	1.11	my @node = ($_[1]);
232			while (@node) {
233			my $node = shift @node;
234			$node->{owner_document} = $_[0];
235			Scalar::Util::weaken ($node->{owner_document});
236			push @node, @{$node->child_nodes};
237			push @node, @{$node->attributes or []} if $node->can ('attributes');
238			}
239			return $_[1];
240			} # adopt_node
241
242	wakaba	1.12	sub manakai_is_html ($;$) {
243			if (@_ > 1) {
244			if ($_[1]) {
245			$_[0]->{manakai_is_html} = 1;
246			} else {
247	wakaba	1.13	delete $_[0]->{manakai_is_html};
248	wakaba	1.12	delete $_[0]->{manakai_compat_mode};
249			}
250			}
251			return $_[0]->{manakai_is_html};
252			} # manakai_is_html
253
254			sub compat_mode ($) {
255			if ($_[0]->{manakai_is_html}) {
256			if ($_[0]->{manakai_compat_mode} eq 'quirks') {
257			return 'BackCompat';
258			}
259			}
260			return 'CSS1Compat';
261			} # compat_mode
262
263			sub manakai_compat_mode ($;$) {
264			if ($_[0]->{manakai_is_html}) {
265			if (@_ > 1 and defined $_[1] and
266			{'no quirks' => 1, 'limited quirks' => 1, 'quirks' => 1}->{$_[1]}) {
267			$_[0]->{manakai_compat_mode} = $_[1];
268			}
269			return $_[0]->{manakai_compat_mode} \|\| 'no quirks';
270			} else {
271			return 'no quirks';
272			}
273			} # manakai_compat_mode
274
275	wakaba	1.2	package Whatpm::NanoDOM::Element;
276			push our @ISA, 'Whatpm::NanoDOM::Node';
277	wakaba	1.1
278	wakaba	1.3	sub new ($$$$$) {
279	wakaba	1.1	my $self = shift->SUPER::new;
280	wakaba	1.3	$self->{owner_document} = shift;
281			Scalar::Util::weaken ($self->{owner_document});
282	wakaba	1.1	$self->{namespace_uri} = shift;
283			$self->{prefix} = shift;
284			$self->{local_name} = shift;
285			$self->{attributes} = {};
286			$self->{child_nodes} = [];
287			return $self;
288			} # new
289
290	wakaba	1.3	sub owner_document ($) {
291			return shift->{owner_document};
292			} # owner_document
293
294	wakaba	1.1	sub clone_node ($$) {
295			my ($self, $deep) = @_; ## NOTE: Deep cloning is not supported
296			my $clone = bless {
297			namespace_uri => $self->{namespace_uri},
298			prefix => $self->{prefix},
299			local_name => $self->{local_name},
300			child_nodes => [],
301			}, ref $self;
302			for my $ns (keys %{$self->{attributes}}) {
303			for my $ln (keys %{$self->{attributes}->{$ns}}) {
304			my $attr = $self->{attributes}->{$ns}->{$ln};
305			$clone->{attributes}->{$ns}->{$ln} = bless {
306			namespace_uri => $attr->{namespace_uri},
307			prefix => $attr->{prefix},
308			local_name => $attr->{local_name},
309			value => $attr->{value},
310			}, ref $self->{attributes}->{$ns}->{$ln};
311			}
312			}
313			return $clone;
314			} # clone
315
316			## A manakai extension
317			sub manakai_append_text ($$) {
318			my $self = shift;
319			if (@{$self->{child_nodes}} and
320			$self->{child_nodes}->[-1]->node_type == 3) {
321			$self->{child_nodes}->[-1]->manakai_append_text (shift);
322			} else {
323	wakaba	1.2	my $text = Whatpm::NanoDOM::Text->new (shift);
324	wakaba	1.1	$self->append_child ($text);
325			}
326			} # manakai_append_text
327
328	wakaba	1.7	sub text_content ($) {
329			my $self = shift;
330			my $r = '';
331			for my $child (@{$self->child_nodes}) {
332			if ($child->can ('data')) {
333			$r .= $child->data;
334			} else {
335			$r .= $child->text_content;
336			}
337			}
338			return $r;
339			} # text_content
340
341	wakaba	1.1	sub attributes ($) {
342			my $self = shift;
343			my $r = [];
344			## Order MUST be stable
345			for my $ns (sort {$a cmp $b} keys %{$self->{attributes}}) {
346			for my $ln (sort {$a cmp $b} keys %{$self->{attributes}->{$ns}}) {
347			push @$r, $self->{attributes}->{$ns}->{$ln}
348			if defined $self->{attributes}->{$ns}->{$ln};
349			}
350			}
351			return $r;
352			} # attributes
353
354	wakaba	1.3	sub local_name ($) { # TODO: HTML5 case
355			return shift->{local_name};
356			} # local_name
357
358	wakaba	1.4	sub manakai_local_name ($) {
359			return shift->{local_name}; # no case fixing for HTML5
360			} # manakai_local_name
361
362	wakaba	1.3	sub namespace_uri ($) {
363			return shift->{namespace_uri};
364			} # namespace_uri
365
366	wakaba	1.4	sub manakai_element_type_match ($$$) {
367			my ($self, $nsuri, $ln) = @_;
368			if (defined $nsuri) {
369			if (defined $self->{namespace_uri} and $nsuri eq $self->{namespace_uri}) {
370			return ($ln eq $self->{local_name});
371			} else {
372			return 0;
373			}
374			} else {
375			if (not defined $self->{namespace_uri}) {
376			return ($ln eq $self->{local_name});
377			} else {
378			return 0;
379			}
380			}
381			} # manakai_element_type_match
382
383	wakaba	1.1	sub node_type { 1 }
384
385			## TODO: HTML5 capitalization
386			sub tag_name ($) {
387			my $self = shift;
388			if (defined $self->{prefix}) {
389			return $self->{prefix} . ':' . $self->{local_name};
390			} else {
391			return $self->{local_name};
392			}
393			} # tag_name
394
395	wakaba	1.8	sub get_attribute_ns ($$$) {
396			my ($self, $nsuri, $ln) = @_;
397			$nsuri = '' unless defined $nsuri;
398			return defined $self->{attributes}->{$nsuri}->{$ln}
399			? $self->{attributes}->{$nsuri}->{$ln}->value : undef;
400			} # get_attribute_ns
401
402	wakaba	1.9	sub get_attribute_node_ns ($$$) {
403			my ($self, $nsuri, $ln) = @_;
404			$nsuri = '' unless defined $nsuri;
405			return $self->{attributes}->{$nsuri}->{$ln};
406			} # get_attribute_node_ns
407
408	wakaba	1.1	sub has_attribute_ns ($$$) {
409			my ($self, $nsuri, $ln) = @_;
410	wakaba	1.8	$nsuri = '' unless defined $nsuri;
411	wakaba	1.1	return defined $self->{attributes}->{$nsuri}->{$ln};
412			} # has_attribute_ns
413
414			## The second parameter only supports manakai extended way
415			## to specify qualified name - "[$prefix, $local_name]"
416			sub set_attribute_ns ($$$$) {
417			my ($self, $nsuri, $qn, $value) = @_;
418			$self->{attributes}->{$nsuri}->{$qn->[1]}
419	wakaba	1.5	= Whatpm::NanoDOM::Attr->new ($self, $nsuri, $qn->[0], $qn->[1], $value);
420	wakaba	1.1	} # set_attribute_ns
421
422	wakaba	1.2	package Whatpm::NanoDOM::Attr;
423			push our @ISA, 'Whatpm::NanoDOM::Node';
424	wakaba	1.1
425	wakaba	1.5	sub new ($$$$$$) {
426	wakaba	1.1	my $self = shift->SUPER::new;
427	wakaba	1.5	$self->{owner_element} = shift;
428			Scalar::Util::weaken ($self->{owner_element});
429	wakaba	1.1	$self->{namespace_uri} = shift;
430			$self->{prefix} = shift;
431			$self->{local_name} = shift;
432			$self->{value} = shift;
433			return $self;
434			} # new
435
436	wakaba	1.5	sub namespace_uri ($) {
437			return shift->{namespace_uri};
438			} # namespace_uri
439
440			sub manakai_local_name ($) {
441			return shift->{local_name};
442			} # manakai_local_name
443
444	wakaba	1.1	sub node_type { 2 }
445
446	wakaba	1.14	sub owner_document ($) {
447			return shift->owner_element->owner_document;
448			} # owner_document
449
450	wakaba	1.1	## TODO: HTML5 case stuff?
451			sub name ($) {
452			my $self = shift;
453			if (defined $self->{prefix}) {
454			return $self->{prefix} . ':' . $self->{local_name};
455			} else {
456			return $self->{local_name};
457			}
458			} # name
459
460			sub value ($) {
461			return shift->{value};
462			} # value
463
464	wakaba	1.5	sub owner_element ($) {
465			return shift->{owner_element};
466			} # owner_element
467
468	wakaba	1.2	package Whatpm::NanoDOM::CharacterData;
469			push our @ISA, 'Whatpm::NanoDOM::Node';
470	wakaba	1.1
471			sub new ($$) {
472			my $self = shift->SUPER::new;
473			$self->{data} = shift;
474			return $self;
475			} # new
476
477			## A manakai extension
478			sub manakai_append_text ($$) {
479			my ($self, $s) = @_;
480			$self->{data} .= $s;
481			} # manakai_append_text
482
483			sub data ($) {
484			return shift->{data};
485			} # data
486
487	wakaba	1.2	package Whatpm::NanoDOM::Text;
488			push our @ISA, 'Whatpm::NanoDOM::CharacterData';
489	wakaba	1.1
490			sub node_type () { 3 }
491
492	wakaba	1.2	package Whatpm::NanoDOM::Comment;
493			push our @ISA, 'Whatpm::NanoDOM::CharacterData';
494	wakaba	1.1
495			sub node_type () { 8 }
496
497	wakaba	1.2	package Whatpm::NanoDOM::DocumentType;
498			push our @ISA, 'Whatpm::NanoDOM::Node';
499	wakaba	1.1
500			sub new ($$) {
501			my $self = shift->SUPER::new;
502			$self->{name} = shift;
503			return $self;
504			} # new
505
506			sub node_type () { 10 }
507
508			sub name ($) {
509			return shift->{name};
510			} # name
511
512			=head1 SEE ALSO
513
514	wakaba	1.2	L<Whatpm::HTML>
515	wakaba	1.1
516			=head1 AUTHOR
517
518			Wakaba <w@suika.fam.cx>.
519
520			=head1 LICENSE
521
522			Copyright 2007 Wakaba <w@suika.fam.cx>
523
524			This library is free software; you can redistribute it
525			and/or modify it under the same terms as Perl itself.
526
527			=cut
528
529			1;
530	wakaba	1.15	# $Date: 2007/07/16 07:48:19 $