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package HTML::FormHandler::Widget::Block;
# ABSTRACT: base block renderer
use Moose;
with 'HTML::FormHandler::TraitFor::Types';
use HTML::FormHandler::Render::Util ('process_attrs');
use HTML::FormHandler::Field;
has 'name' => ( is => 'ro', isa => 'Str', required => 1 );
has 'form' => ( is => 'ro', isa => 'HTML::FormHandler', required => 1,
weak_ref => 1,
);
has 'class' => (
is => 'rw',
isa => 'HFH::ArrayRefStr',
traits => ['Array'],
builder => 'build_class',
handles => {
has_class => 'count',
add_class => 'push',
}
);
sub build_class { [] }
has 'attr' => (
is => 'rw',
traits => ['Hash'],
builder => 'build_attr',
handles => {
has_attr => 'count',
set__attr => 'set',
delete__attr => 'delete'
},
);
sub build_attr { {} }
has 'wrapper' => ( is => 'rw', isa => 'Bool', default => 1 );
has 'tag' => ( is => 'rw', isa => 'Str', default => 'div' );
has 'label' => ( is => 'rw', isa => 'Str', predicate => 'has_label' );
has 'label_tag' => ( is => 'rw', isa => 'Str' );
has 'label_class' => (
is => 'rw',
isa => 'HFH::ArrayRefStr',
traits => ['Array'],
builder => 'build_label_class',
handles => {
has_label_class => 'count',
add_label_class => 'push',
}
);
sub build_label_class { [] }
has 'render_list' => (
is => 'rw',
isa => 'ArrayRef[Str]',
traits => ['Array'],
builder => 'build_render_list',
handles => {
has_render_list => 'count',
add_to_render_list => 'push',
all_render_list => 'elements',
get_render_list => 'get',
}
);
sub build_render_list { [] }
has 'content' => ( is => 'rw' );
has 'after_plist' => ( is => 'rw' );
sub render {
my ( $self, $result ) = @_;
$result ||= $self->form->result;
my $start_wrapper = '';
my $end_wrapper = '';
if( $self->wrapper ) {
my $tag = $self->tag;
# create attribute string
my $attr_str = $self->render_attribute_string;
$start_wrapper = qq{<$tag$attr_str>};
$end_wrapper = qq{</$tag>};
}
# get rendering of contained fields, if any
my $rendered_fb = $self->render_from_list($result);
my $content = $self->content || '';
my $after_plist = $self->after_plist || '';
# create label
my $label = $self->render_label;
my $block = qq{\n$start_wrapper$label$content$rendered_fb$after_plist$end_wrapper};
}
sub render_attribute_string {
my $self = shift;
my $attr = { %{ $self->attr } };
$attr->{class} = $self->class if $self->has_class;
my $attr_str = process_attrs($attr);
return $attr_str;
}
sub render_label {
my $self = shift;
my $label = '';
if ( $self->has_label ) {
my $label_tag = $self->label_tag || 'span';
$label_tag = 'legend' if lc $self->tag eq 'fieldset';
my $label_str = $self->form->_localize( $self->label );
my $attr_str = '';
$attr_str = process_attrs( { class => $self->label_class } ) if $self->has_label_class;
$label = qq{<$label_tag$attr_str>$label_str</$label_tag>};
}
return $label;
}
sub render_from_list {
my ( $self, $result ) = @_;
my $output = '';
if ( $self->has_render_list ) {
foreach my $fb ( @{ $self->render_list } ) {
# it's a Field
if ( $self->form->field_in_index($fb) ) {
# find field result and use that
my $fld_result = $result->get_result($fb);
# if no result, then we shouldn't be rendering this field
next unless $fld_result;
$output .= $fld_result->render;
}
# it's a Block
else {
# block can't be called from a field, so this should
# always be the for result
my $block = $self->form->block($fb);
die "found no form field or block named '$fb'\n" unless $block;
$output .= $block->render($result);
}
}
}
# else nothing to render from render_list
return $output;
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
HTML::FormHandler::Widget::Block - base block renderer
=head1 VERSION
version 0.40057
=head1 SYNOPSIS
Base block renderer to be used with L<HTML::FormHandler::Blocks>.
has_block 'my_fieldset' => ( tag => 'fieldset',
render_list => ['bar'], label => 'My Special Bar' );
=head1 ATTRIBUTES
=over 4
=item render_list
List of names of objects to render (fields and blocks)
=item tag
HTML tag for this block. Default 'div'.
=item class
Arrayref of classes for the HTML element.
=item attr
Other attributes for the HTML element.
=item label_tag
Tag to use for the label. Default: 'span'; default for 'fieldset' is 'legend'.
=item label_class
Classes for the label.
=item label
Label string. Will be localized.
=back
=head1 AUTHOR
FormHandler Contributors - see HTML::FormHandler
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by Gerda Shank.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|
