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✏️ Editing: folderlist.php

<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Form
 *
 * @copyright   Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

jimport('joomla.filesystem.folder');
jimport('joomla.filesystem.path');

JFormHelper::loadFieldClass('list');

/**
 * Supports an HTML select list of folder
 *
 * @since  1.7.0
 */
class JFormFieldFolderList extends JFormFieldList
{
	/**
	 * The form field type.
	 *
	 * @var    string
	 * @since  1.7.0
	 */
	protected $type = 'FolderList';

/**
	 * The filter.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $filter;

/**
	 * The exclude.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $exclude;

/**
	 * The recursive.
	 *
	 * @var    string
	 * @since  3.6
	 */
	protected $recursive;

/**
	 * The hideNone.
	 *
	 * @var    boolean
	 * @since  3.2
	 */
	protected $hideNone = false;

/**
	 * The hideDefault.
	 *
	 * @var    boolean
	 * @since  3.2
	 */
	protected $hideDefault = false;

/**
	 * The directory.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $directory;

/**
	 * Method to get certain otherwise inaccessible properties from the form field object.
	 *
	 * @param   string  $name  The property name for which to get the value.
	 *
	 * @return  mixed  The property value or null.
	 *
	 * @since   3.2
	 */
	public function __get($name)
	{
		switch ($name)
		{
			case 'filter':
			case 'exclude':
			case 'recursive':
			case 'hideNone':
			case 'hideDefault':
			case 'directory':
				return $this->$name;
		}

return parent::__get($name);
	}

/**
	 * Method to set certain otherwise inaccessible properties of the form field object.
	 *
	 * @param   string  $name   The property name for which to set the value.
	 * @param   mixed   $value  The value of the property.
	 *
	 * @return  void
	 *
	 * @since   3.2
	 */
	public function __set($name, $value)
	{
		switch ($name)
		{
			case 'filter':
			case 'directory':
			case 'exclude':
			case 'recursive':
				$this->$name = (string) $value;
				break;

case 'hideNone':
			case 'hideDefault':
				$value = (string) $value;
				$this->$name = ($value === 'true' || $value === $name || $value === '1');
				break;

default:
				parent::__set($name, $value);
		}
	}

/**
	 * Method to attach a JForm object to the field.
	 *
	 * @param   SimpleXMLElement  $element  The SimpleXMLElement object representing the `<field>` tag for the form field object.
	 * @param   mixed             $value    The form field value to validate.
	 * @param   string            $group    The field name group control value. This acts as an array container for the field.
	 *                                      For example if the field has name="foo" and the group value is set to "bar" then the
	 *                                      full field name would end up being "bar[foo]".
	 *
	 * @return  boolean  True on success.
	 *
	 * @see     JFormField::setup()
	 * @since   3.2
	 */
	public function setup(SimpleXMLElement $element, $value, $group = null)
	{
		$return = parent::setup($element, $value, $group);

if ($return)
		{
			$this->filter  = (string) $this->element['filter'];
			$this->exclude = (string) $this->element['exclude'];

$recursive       = (string) $this->element['recursive'];
			$this->recursive = ($recursive == 'true' || $recursive == 'recursive' || $recursive == '1');

$hideNone       = (string) $this->element['hide_none'];
			$this->hideNone = ($hideNone == 'true' || $hideNone == 'hideNone' || $hideNone == '1');

$hideDefault       = (string) $this->element['hide_default'];
			$this->hideDefault = ($hideDefault == 'true' || $hideDefault == 'hideDefault' || $hideDefault == '1');

// Get the path in which to search for file options.
			$this->directory = (string) $this->element['directory'];
		}

return $return;
	}

/**
	 * Method to get the field options.
	 *
	 * @return  array  The field option objects.
	 *
	 * @since   1.7.0
	 */
	protected function getOptions()
	{
		$options = array();

$path = $this->directory;

if (!is_dir($path))
		{
			$path = JPATH_ROOT . '/' . $path;
		}
		
		$path = JPath::clean($path);

// Prepend some default options based on field attributes.
		if (!$this->hideNone)
		{
			$options[] = JHtml::_('select.option', '-1', JText::alt('JOPTION_DO_NOT_USE', preg_replace('/[^a-zA-Z0-9_\-]/', '_', $this->fieldname)));
		}

if (!$this->hideDefault)
		{
			$options[] = JHtml::_('select.option', '', JText::alt('JOPTION_USE_DEFAULT', preg_replace('/[^a-zA-Z0-9_\-]/', '_', $this->fieldname)));
		}

// Get a list of folders in the search path with the given filter.
		$folders = JFolder::folders($path, $this->filter, $this->recursive, true);

// Build the options list from the list of folders.
		if (is_array($folders))
		{
			foreach ($folders as $folder)
			{
				// Check to see if the file is in the exclude mask.
				if ($this->exclude)
				{
					if (preg_match(chr(1) . $this->exclude . chr(1), $folder))
					{
						continue;
					}
				}

// Remove the root part and the leading /
				$folder = trim(str_replace($path, '', $folder), '/');

$options[] = JHtml::_('select.option', $folder, $folder);
			}
		}

// Merge any additional options in the XML definition.
		$options = array_merge(parent::getOptions(), $options);

return $options;
	}
}

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