/wp-content/plugins/learnpress/inc/libraries/meta-box/inc/fields/wysiwyg.php

<?php

// Prevent loading this file directly

defined( 'ABSPATH' ) || exit;



if ( ! class_exists( 'RWMB_Wysiwyg_Field' ) ) {

	class RWMB_Wysiwyg_Field extends RWMB_Field {



		static $cloneable_editors = array();



		/**

		 * Enqueue scripts and styles

		 *

		 * @return void

		 */

		static function admin_enqueue_scripts() {

			wp_enqueue_style( 'rwmb-meta-box-wysiwyg', RWMB_CSS_URL . 'wysiwyg.css', array(), RWMB_VER );

		}



		/**

		 * Change field value on save

		 *

		 * @param mixed $new

		 * @param mixed $old

		 * @param int   $post_id

		 * @param array $field

		 *

		 * @return string

		 */

		static function value( $new, $old, $post_id, $field ) {

			if ( $field['raw'] ) {

				$meta = $new;

			} else {

				if ( $field['clone'] ) {

					$meta = array_map( 'wpautop', $new );

				} else {

					$meta = wpautop( $new );

				}

			}



			return $meta;

		}



		/**

		 * Get field HTML

		 *

		 * @param mixed $meta

		 * @param array $field

		 *

		 * @return string

		 */

		static function html( $meta, $field ) {

			// Using output buffering because wp_editor() echos directly

			ob_start();



			$field['options']['textarea_name'] = $field['field_name'];



			// Use new wp_editor() since WP 3.3

			wp_editor( $meta, $field['id'], $field['options'] );



			$editor = ob_get_clean();

			if ( $field['clone'] ) {

				self::$cloneable_editors[$field['id']] = $editor;

				add_action( 'admin_print_footer_scripts', array( __CLASS__, 'footer_scripts' ), 51 );

			}



			return $editor;

		}



		/**

		 * Normalize parameters for field

		 *

		 * @param array $field

		 *

		 * @return array

		 */

		static function normalize_field( $field ) {

			$field = wp_parse_args( $field, array(

				'raw'     => false,

				'options' => array(),

			) );



			$field['options'] = wp_parse_args( $field['options'], array(

				'editor_class' => 'rwmb-wysiwyg',

				'dfw'          => true, // Use default WordPress full screen UI

			) );



			// Keep the filter to be compatible with previous versions

			$field['options'] = apply_filters( 'rwmb_wysiwyg_settings', $field['options'] );



			return $field;

		}



		static function footer_scripts() {

			echo '<script> var rwmb_cloneable_editors = ' . json_encode( self::$cloneable_editors ) . ';</script>';

		}

	}

}