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<?php
// Prevent loading this file directly
defined( 'ABSPATH' ) || exit;

if ( !class_exists( 'THE7_RWMB_Wysiwyg_Field' ) )
{
	class THE7_RWMB_Wysiwyg_Field
	{
		/**
		 * Enqueue scripts and styles
		 *
		 * @return void
		 */
		static function admin_enqueue_scripts()
		{
			wp_enqueue_style( 'the7-mb-meta-box-wysiwyg', THE7_RWMB_CSS_URL . 'wysiwyg.css', array(), THE7_RWMB_VER );
		}

		/**
		 * Add field actions
		 *
		 * @return void
		 */
		static function add_actions()
		{
			// Add TinyMCE script for WP version < 3.3
			global $wp_version;

			if ( version_compare( $wp_version, '3.2.1' ) < 1 )
			{
				add_action( 'admin_print_footer-post.php', 'wp_tiny_mce', 25 );
				add_action( 'admin_print_footer-post-new.php', 'wp_tiny_mce', 25 );
			}
		}

		/**
		 * 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 )
		{
			return ( $field['raw'] ? $new : wpautop( $new ) );
		}

		/**
		 * Get field HTML
		 *
		 * @param string $html
		 * @param mixed  $meta
		 * @param array  $field
		 *
		 * @return string
		 */
		static function html( $html, $meta, $field )
		{
			global $wp_version;

			if ( version_compare( $wp_version, '3.2.1' ) < 1 )
			{
				return sprintf(
					'<textarea class="the7-mb-wysiwyg theEditor large-text" name="%s" id="%s" cols="60" rows="4">%s</textarea>',
					$field['field_name'],
					$field['id'],
					$meta
				);
			}
			else
			{
				// 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'] );

				return ob_get_clean();
			}
		}

		/**
		 * 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' => 'the7-mb-wysiwyg',
				'dfw'          => true, // Use default WordPress full screen UI
			) );

			// Keep the filter to be compatible with previous versions
			$field['options'] = apply_filters( 'the7_mb_wysiwyg_settings', $field['options'] );

			return $field;
		}
	}
}