rilwis/meta-box

<?php
defined( 'ABSPATH' ) || die;

/**
 * The file upload field which allows users to drag and drop files to upload.
 */
class RWMB_File_Upload_Field extends RWMB_Media_Field {
    public static function admin_enqueue_scripts() {
        parent::admin_enqueue_scripts();
        wp_enqueue_style( 'rwmb-upload', RWMB_CSS_URL . 'upload.css', [ 'rwmb-media' ], RWMB_VER );
        wp_style_add_data( 'rwmb-upload', 'path', RWMB_CSS_DIR . 'upload.css' );
        wp_enqueue_script( 'rwmb-file-upload', RWMB_JS_URL . 'file-upload.js', [ 'rwmb-media' ], RWMB_VER, true );
    }

    /**
     * Normalize parameters for field.
     *
     * @param array $field Field parameters.
     *
     * @return array
     */
    public static function normalize( $field ) {
        $field = parent::normalize( $field );
        $field = wp_parse_args( $field, [
            'max_file_size' => 0,
        ] );

        $field['js_options'] = wp_parse_args( $field['js_options'], [
            'maxFileSize' => $field['max_file_size'],
        ] );

        return $field;
    }

    /**
     * Template for media item.
     */
    public static function print_templates() {
        parent::print_templates();
        require RWMB_INC_DIR . 'templates/upload.php';
    }
}