/usr/share/perl5/HTML/Widget/Element/NullContainer.pm is in libhtml-widget-perl 1.11-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use warnings;
use strict;
use base 'HTML::Widget::Element';
use NEXT;
use Carp qw/croak/;
__PACKAGE__->mk_accessors(qw/content/);
*elem = \&element;
=head1 NAME
HTML::Widget::Element::NullContainer - Null Container Element
=head1 SYNOPSIS
my $e = $widget->element( 'NullContainer');
$e->element('Textfield', 'bar');
=head1 DESCRIPTION
NullContainer Level Element. Base class for HTML::Widget::Element::Block
May also be useful for canned subwidgets.
See L<HTML::Widget::Element::Block> for documentation of most methods.
=head1 METHODS
=head2 new
Sets L<HTML::Widget::Element/allow_filter> to false, so that filters added
by C<< $widget->filter_all >> won't be applied to Span elements.
Sets L<HTML::Widget::Element/allow_constraint> to false, so that constraints
added by C<< $widget->constraint_all >> won't be applied to Span elements.
=cut
sub new {
my $self = shift->NEXT::new(@_);
$self->allow_filter(0)->allow_constraint(0)->content( [] );
return $self;
}
=head2 elem
=head2 element
Arguments: $type, $name, \%attributes
Return Value: $element
See L<HTML::Widget/element> for details.
=cut
sub element {
my ( $self, $type, $name, $attrs ) = @_;
my $abs = $type =~ s/^\+//;
$type = "HTML::Widget::Element::$type" unless $abs;
my $element = HTML::Widget->_instantiate( $type, { name => $name } );
$element->{_anonymous} = 1 if !defined $name;
$self->push_content($element);
if ( defined $attrs ) {
eval { $element->attributes->{$_} = $attrs->{$_} for keys %$attrs; };
croak "attributes argument must be a hash-reference: $@" if $@;
}
return $element;
}
=head2 push_content
=cut
sub push_content {
push @{ shift->content }, @_;
}
=head2 unshift_content
=cut
sub unshift_content {
unshift @{ shift->content }, @_;
}
=head2 containerize
=cut
sub containerize {
my ( $self, $w, $value, $error, $args ) = @_;
local $w->{attributes}->{id} = $self->id($w);
my @content = $w->_containerize_elements( $self->content, $args );
return HTML::Widget::NullContainer->new( {
passive => $self->passive,
element => 1,
content => \@content,
name => $self->name,
} );
}
=head2 id
=cut
sub id {
my ( $self, $w ) = @_;
return $w->name if $self->{_anonymous};
my $name = $self->name();
if ( $name =~ s/^_implicit_// ) {
# $name is left set to the name of the
# original parent widget of this element, as set by
# H::W::_setup_implicit_subcontainer.
}
return $w->name . '_' . $name;
}
=head2 get_elements
=cut
sub get_elements {
my ( $self, %opt ) = @_;
return $self->_match_elements( $self->content, \%opt );
}
=head2 get_element
=cut
sub get_element {
my ( $self, %opt ) = @_;
return ( $self->get_elements(%opt) )[0];
}
=head2 find_elements
=cut
sub find_elements {
my ( $self, %opt ) = @_;
my @elements = ($self);
push @elements, map { $_->find_elements(%opt) } @{ $self->content };
return $self->_match_elements( \@elements, \%opt );
}
sub _match_elements {
my ( $self, $elements, $opt ) = @_;
if ( exists $opt->{type} ) {
my $type = "HTML::Widget::Element::$opt->{type}";
return grep { $_->isa($type) } @$elements;
}
elsif ( exists $opt->{name} ) {
my $name = $opt->{name};
return grep { $_->name and $_->name eq $name } @$elements;
}
return @$elements;
}
=head2 prepare
See L<HTML::Widget::Element/prepare>
=cut
sub prepare {
my ( $self, $w ) = @_;
map { $_->prepare($w) } @{ $self->content };
}
=head2 init
See L<HTML::Widget::Element/init>
=cut
sub init {
my ( $self, $w ) = @_;
for my $element ( @{ $self->content } ) {
$element->init($w) unless $element->{_initialized};
$element->{_initialized}++;
}
}
=head2 process
See L<HTML::Widget::Element/process>
=cut
sub process {
my ( $self, $params, $uploads ) = @_;
my $errors;
for my $element ( @{ $self->content } ) {
my $er = $element->process( $params, $uploads );
push @$errors, @$er if $er;
}
return $errors;
}
=head1 SEE ALSO
L<HTML::Widget::Element>
=head1 AUTHOR
Michael Gray, C<mjg@cpan.org>
=head1 LICENSE
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
package HTML::Widget::NullContainer;
use warnings;
use strict;
use base 'HTML::Widget::Container';
__PACKAGE__->mk_accessors(qw/content/);
sub _build_element {
my $self = shift;
return ( map { $_->as_list } @{ $self->content } );
}
1;
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