upgrader =& $upgrader; } } /** * Set the upgrader result and store it as a property in the parent class. * * @since 1.0.0 * * @param object $result The result of the install process. */ public function set_result( $result ) { $this->result = $result; } /** * Empty out the header of its HTML content and only check to see if it has * been performed or not. * * @since 1.0.0 */ public function header() {} /** * Empty out the footer of its HTML contents. * * @since 1.0.0 */ public function footer() {} /** * Instead of outputting HTML for errors, json_encode the errors and send them * back to the Ajax script for processing. * * @since 1.0.0 * * @param array $errors Array of errors with the install process. */ public function error( $errors ) { if ( ! empty( $errors ) ) { echo wp_json_encode( array( 'error' => __( 'There was an error installing the addon. Please try again.', 'envira-gallery' ) ) ); /* log this for API issues */ error_log( 'Envira: There was an error installing the addon' ); error_log( print_r( $errors, true ) ); die; } } /** * Empty out the feedback method to prevent outputting HTML strings as the install * is progressing. * * @since 1.0.0 * * @param string $string The feedback string. * @param array ...$args The args. */ public function feedback( $string, ...$args ) {} }