add_action( 'add_meta_boxes', 'vclAdminConfig' );
add_action( 'save_post', 'vclSavePostData' );

function vclAdminConfig() {
    add_meta_box(  'vclConfigBox', 'New Box','vclMetaBoxCallback', 'post');
}


function vclMetaBoxCallback(){
    $post_id = get_the_ID();
    wp_nonce_field( plugin_basename( __FILE__ ), 'vclNoncename' );
    $vclLockedContent= get_post_meta($post_id, 'vclLockedContent', TRUE);
    wp_editor( $vclLockedContent, 'vclLockedContent');
}

function vclSavePostData(){
    $post_id = get_the_ID();
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
    return;
    if ( !wp_verify_nonce( $_POST['vclNoncename'], plugin_basename( __FILE__ ) ) )
    return;
     // Check permissions
    if ( ( isset ( $_POST['post_type'] ) ) && ( 'page' == $_POST['post_type'] )  ) {
        if ( ! current_user_can( 'edit_page', $post_id ) ) {
            return;
        }
    }
    else {
        if ( ! current_user_can( 'edit_post', $post_id ) ) {
            return;
        }
    }
    $vclLockedContent = $_POST['vclLockedContent'];  //lockedcontent
    if (get_post_meta($post_id, 'vclLockedContent', TRUE) != ''){
        update_post_meta($post_id, 'vclLockedContent',$vclLockedContent);
    }
    else{
        add_post_meta($post_id, 'vclLockedContent', $vclLockedContent);
    }

}

}