File Coverage

blib/lib/DTL/Fast/Tag/Widthratio.pm

Criterion	Covered	Total	%
statement	30	32	93.7
branch	4	6	66.6
condition	0	2	0.0
subroutine	7	7	100.0
pod	0	2	0.0
total	41	49	83.6

package DTL::Fast::Tag::Widthratio;
use strict; use utf8; use warnings FATAL => 'all';
use parent 'DTL::Fast::Tag::Simple';

$DTL::Fast::TAG_HANDLERS{'widthratio'} = __PACKAGE__;

use DTL::Fast::Utils;

#@Override
sub parse_parameters
{
    my $self = shift;

    if( $self->{'parameter'} =~ /^\s*(.+?)(?:\s+as\s+([^\s]+))?\s*$/s )
    {
        $self->{'target_name'} = $2;

        $self->{'sources'} = $self->parse_sources($1);

        die $self->get_parse_error(
            sprintf(
                "Three arguments should be passed to widthratio: %s %s"
                , $self->{'parameter'}  // 'undef'
                , scalar @{$self->{'sources'}}
            )
        ) if scalar @{$self->{'sources'}} != 3;
    }
    else
    {
        die die $self->get_parse_error("Unable to parse ratio parameters $self->{'parameter'}");
    }

    return $self;
}

#@Override
sub render
{
    my $self = shift;
    my $context = shift;

    my $sources = $self->{'sources'};
    my $result = int(
        $sources->[0]->render($context)
        / $sources->[1]->render($context)
        * $sources->[2]->render($context)
    );

    if( $self->{'target_name'} )
    {
        $context->set($self->{'target_name'} => $result);
        $result = '';
    }

    return $result;
}

1;