Sindbad~EG File Manager

<?php
if ( ! defined( 'ABSPATH' ) ) {
	die( '-1' );
}

add_filter( 'vc_edit_form_fields_optional_params', 'vc_edit_for_fields_add_optional_params' );

if ( 'vc_edit_form' === vc_post_param( 'action' ) ) {
	add_action( 'vc_edit_form_fields_after_render', 'vc_output_required_params_to_init' );
	add_filter( 'vc_edit_form_fields_optional_params', 'vc_edit_for_fields_add_optional_params' );
}

/**
 * @param $params
 * @return array
 */
function vc_edit_for_fields_add_optional_params( $params ) {
	$arr = array(
		'hidden',
		'textfield',
		'dropdown',
		'checkbox',
		'posttypes',
		'taxonomies',
		'taxomonies',
		'exploded_textarea',
		'textarea_raw_html',
		'textarea_safe',
		'textarea',
		'attach_images',
		'attach_image',
		'widgetised_sidebars',
		'colorpicker',
		'loop',
		'vc_link',
		'sorted_list',
		'tab_id',
		'href',
		'custom_markup',
		'animation_style',
		'iconpicker',
		'el_id',
		'vc_grid_item',
		'google_fonts',
	);
	$params = array_values( array_unique( array_merge( $params, $arr ) ) );

	return $params;
}

function vc_output_required_params_to_init() {
	$params = WpbakeryShortcodeParams::getRequiredInitParams();

	$js_array = array();
	foreach ( $params as $param ) {
		$js_array[] = '"' . $param . '"';
	}

	$data = '
	if ( window.vc ) {
		window.vc.required_params_to_init = [' . implode( ',', $js_array ) . '];
	}';
	$custom_tag = 'script';
	$output = '<' . $custom_tag . '>' . $data . '</' . $custom_tag . '>';

	echo $output;
}

add_action( 'wp_ajax_wpb_gallery_html', 'vc_gallery_html' );

function vc_gallery_html() {
	vc_user_access()->checkAdminNonce()->validateDie()->wpAny( 'edit_posts', 'edit_pages' )->validateDie();

	$images = vc_post_param( 'content' );
	if ( ! empty( $images ) ) {
		wp_send_json_success( vc_field_attached_images( explode( ',', $images ) ) );
	}
	die();
}