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package Reaction::UI::ViewPort::Field::ChooseMany;
use Reaction::Class;
class ChooseMany is 'Reaction::UI::ViewPort::Field::ChooseOne', which {
has '+layout' => (default => 'dual_select_group');
has '+value' => (isa => 'ArrayRef');
has available_value_names =>
(isa => 'ArrayRef', is => 'ro', lazy_build => 1);
has value_names => (isa => 'ArrayRef', is => 'ro', lazy_build => 1);
my $listify = sub { # quick utility function, $listify->($arg)
return (defined($_[0])
? (ref($_[0]) eq 'ARRAY'
? $_[0] # \@arr => \@arr
: [$_[0]]) # $scalar => [$scalar]
: []); # undef => []
};
around value => sub {
my $orig = shift;
my $self = shift;
if (@_) {
my $value = $listify->(shift);
if (defined $value) {
$_ = $self->str_to_ident($_) for @$value;
my $checked = $self->attribute->check_valid_value($self->action, $value);
# i.e. fail if any of the values fail
confess "Not a valid set of values"
if (@$checked < @$value || grep { !defined($_) } @$checked);
$value = $checked;
}
$orig->($self, $value);
} else {
$orig->($self);
}
};
override build_value => sub {
return super() || [];
};
implements is_current_value => as {
my ($self, $check_value) = @_;
my @our_values = @{$self->value||[]};
#$check_value = $check_value->id if ref($check_value);
#return grep { $_->id eq $check_value } @our_values;
$check_value = $self->obj_to_str($check_value) if ref($check_value);
return grep { $self->obj_to_str($_) eq $check_value } @our_values;
};
implements current_values => as {
my $self = shift;
my @all = grep { $self->is_current_value($_) } @{$self->valid_values};
return [ @all ];
};
implements available_values => as {
my $self = shift;
my @all = grep { !$self->is_current_value($_) } @{$self->valid_values};
return [ @all ];
};
implements build_available_value_names => as {
my $self = shift;
my @all = @{$self->available_values};
my $meth = $self->value_map_method;
my @names = map { $_->$meth } @all;
return [ sort @names ];
};
implements build_value_names => as {
my $self = shift;
my @all = @{$self->value||[]};
my $meth = $self->value_map_method;
my @names = map { $_->$meth } @all;
return [ sort @names ];
};
around handle_events => sub {
my $orig = shift;
my ($self, $events) = @_;
my $ev_value = $listify->($events->{value});
if (delete $events->{add_all_values}) {
$events->{value} = $self->valid_values;
}
if (delete $events->{do_add_values} && exists $events->{add_values}) {
my $add = $listify->(delete $events->{add_values});
$events->{value} = [ @{$ev_value}, @$add ];
}
if (delete $events->{remove_all_values}) {
$events->{value} = [];
}
if (delete $events->{do_remove_values} && exists $events->{remove_values}) {
my $remove = $listify->(delete $events->{remove_values});
my %r = map { ($_ => 1) } @$remove;
$events->{value} = [ grep { !$r{$_} } @{$ev_value} ];
}
return $orig->(@_);
};
};
1;
=head1 NAME
Reaction::UI::ViewPort::Field::ChooseMany
=head1 DESCRIPTION
=head1 METHODS
=head2 is_current_value
=head2 current_values
=head2 available_values
=head2 available_value_names
=head1 SEE ALSO
=head2 L<Reaction::UI::ViewPort::Field>
=head1 AUTHORS
See L<Reaction::Class> for authors.
=head1 LICENSE
See L<Reaction::Class> for the license.
=cut
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