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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;

\defined('JPATH_PLATFORM') or die;

use Joomla\CMS\Editor\Editor;
use Joomla\CMS\Factory;

/**
 * A textarea field for content creation
 *
 * @see    JEditor
 * @since  1.6
 */
class EditorField extends TextareaField
{
	/**
	 * The form field type.
	 *
	 * @var    string
	 * @since  1.6
	 */
	public $type = 'Editor';

/**
	 * The Editor object.
	 *
	 * @var    Editor
	 * @since  1.6
	 */
	protected $editor;

/**
	 * The height of the editor.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $height;

/**
	 * The width of the editor.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $width;

/**
	 * The assetField of the editor.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $assetField;

/**
	 * The authorField of the editor.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $authorField;

/**
	 * The asset of the editor.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $asset;

/**
	 * The buttons of the editor.
	 *
	 * @var    mixed
	 * @since  3.2
	 */
	protected $buttons;

/**
	 * The hide of the editor.
	 *
	 * @var    array
	 * @since  3.2
	 */
	protected $hide;

/**
	 * The editorType of the editor.
	 *
	 * @var    array
	 * @since  3.2
	 */
	protected $editorType;

/**
	 * The parent class of the field
	 *
	 * @var  string
	 * @since 4.0.0
	 */
	protected $parentclass;

/**
	 * 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 'height':
			case 'width':
			case 'assetField':
			case 'authorField':
			case 'asset':
			case 'buttons':
			case 'hide':
			case 'editorType':
				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 'height':
			case 'width':
			case 'assetField':
			case 'authorField':
			case 'asset':
				$this->$name = (string) $value;
				break;

case 'buttons':
				$value = (string) $value;

if ($value === 'true' || $value === 'yes' || $value === '1')
				{
					$this->buttons = true;
				}
				elseif ($value === 'false' || $value === 'no' || $value === '0')
				{
					$this->buttons = false;
				}
				else
				{
					$this->buttons = explode(',', $value);
				}
				break;

case 'hide':
				$value = (string) $value;
				$this->hide = $value ? explode(',', $value) : array();
				break;

case 'editorType':
				// Can be in the form of: editor="desired|alternative".
				$this->editorType  = explode('|', trim((string) $value));
				break;

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

/**
	 * Method to attach a Form 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     FormField::setup()
	 * @since   3.2
	 */
	public function setup(\SimpleXMLElement $element, $value, $group = null)
	{
		$result = parent::setup($element, $value, $group);

if ($result === true)
		{
			$this->height      = $this->element['height'] ? (string) $this->element['height'] : '500';
			$this->width       = $this->element['width'] ? (string) $this->element['width'] : '100%';
			$this->assetField  = $this->element['asset_field'] ? (string) $this->element['asset_field'] : 'asset_id';
			$this->authorField = $this->element['created_by_field'] ? (string) $this->element['created_by_field'] : 'created_by';
			$this->asset       = $this->form->getValue($this->assetField) ?: (string) $this->element['asset_id'];

$buttons    = (string) $this->element['buttons'];
			$hide       = (string) $this->element['hide'];
			$editorType = (string) $this->element['editor'];

if ($buttons === 'true' || $buttons === 'yes' || $buttons === '1')
			{
				$this->buttons = true;
			}
			elseif ($buttons === 'false' || $buttons === 'no' || $buttons === '0')
			{
				$this->buttons = false;
			}
			else
			{
				$this->buttons = !empty($hide) ? explode(',', $buttons) : array();
			}

$this->hide        = !empty($hide) ? explode(',', (string) $this->element['hide']) : array();
			$this->editorType  = !empty($editorType) ? explode('|', trim($editorType)) : array();
		}

return $result;
	}

/**
	 * Method to get the field input markup for the editor area
	 *
	 * @return  string  The field input markup.
	 *
	 * @since   1.6
	 */
	protected function getInput()
	{
		// Get an editor object.
		$editor = $this->getEditor();
		$params = array(
			'autofocus' => $this->autofocus,
			'readonly'  => $this->readonly || $this->disabled,
			'syntax'    => (string) $this->element['syntax'],
		);

return $editor->display(
			$this->name,
			htmlspecialchars($this->value, ENT_COMPAT, 'UTF-8'),
			$this->width,
			$this->height,
			$this->columns,
			$this->rows,
			$this->buttons ? (\is_array($this->buttons) ? array_merge($this->buttons, $this->hide) : $this->hide) : false,
			$this->id,
			$this->asset,
			$this->form->getValue($this->authorField),
			$params
		);
	}

/**
	 * Method to get an Editor object based on the form field.
	 *
	 * @return  Editor  The Editor object.
	 *
	 * @since   1.6
	 */
	protected function getEditor()
	{
		// Only create the editor if it is not already created.
		if (empty($this->editor))
		{
			$editor = null;

if ($this->editorType)
			{
				// Get the list of editor types.
				$types = $this->editorType;

// Get the database object.
				$db = Factory::getDbo();

// Build the query.
				$query = $db->getQuery(true)
					->select($db->quoteName('element'))
					->from($db->quoteName('#__extensions'))
					->where(
						[
							$db->quoteName('element') . ' = :editor',
							$db->quoteName('folder') . ' = ' . $db->quote('editors'),
							$db->quoteName('enabled') . ' = 1',
						]
					);

// Declare variable before binding.
				$element = '';
				$query->bind(':editor', $element);
				$query->setLimit(1);

// Iterate over the types looking for an existing editor.
				foreach ($types as $element)
				{
					// Check if the editor exists.
					$db->setQuery($query);
					$editor = $db->loadResult();

// If an editor was found stop looking.
					if ($editor)
					{
						break;
					}
				}
			}

// Create the JEditor instance based on the given editor.
			if ($editor === null)
			{
				$editor = Factory::getApplication()->get('editor');
			}

$this->editor = Editor::getInstance($editor);
		}

return $this->editor;
	}
}