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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Form\Field;
use Joomla\CMS\HTML\HTMLHelper;
// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;
// phpcs:enable PSR1.Files.SideEffects
/**
* Form Field class for the Joomla Platform.
* Provides a select list of integers with specified first, last and step values.
*
* @since 1.7.0
*/
class IntegerField extends ListField
{
/**
* The form field type.
*
* @var string
* @since 1.7.0
*/
protected $type = 'Integer';
/**
* Method to get the field options.
*
* @return object[] The field option objects.
*
* @since 1.7.0
*/
protected function getOptions()
{
$options = [];
// Initialize some field attributes.
$first = (int) $this->element['first'];
$last = (int) $this->element['last'];
$step = (int) $this->element['step'];
// Sanity checks.
if ($step == 0) {
// Step of 0 will create an endless loop.
return $options;
}
if ($first < $last && $step < 0) {
// A negative step will never reach the last number.
return $options;
}
if ($first > $last && $step > 0) {
// A position step will never reach the last number.
return $options;
}
if ($step < 0) {
// Build the options array backwards.
for ($i = $first; $i >= $last; $i += $step) {
$options[] = HTMLHelper::_('select.option', $i);
}
} else {
// Build the options array.
for ($i = $first; $i <= $last; $i += $step) {
$options[] = HTMLHelper::_('select.option', $i);
}
}
// Merge any additional options in the XML definition.
$options = array_merge(parent::getOptions(), $options);
return $options;
}
}