%s', powerkit_get_page_slug( $this->slug ), esc_html__( 'Retina Images', 'powerkit' ) ), array( $this, 'powerkit_retina_images_settings_callback' ), 'media' ); add_settings_field( 'powerkit_retina_images_sizes', esc_html__( 'Sizes', 'powerkit' ), array( $this, 'powerkit_retina_images_sizes_callback' ), 'media', 'powerkit_retina_images_settings' ); register_setting( 'media', 'powerkit_retina_images_sizes' ); } /** * Section Description. * * @since 1.0.0 */ public function powerkit_retina_images_settings_callback() { return null; } /** * Filer Save | Sizes. * * @since 1.0.0 * @param mixed $value The new option value. */ public function powerkit_retina_images_sizes_filter( $value ) { $images_sizes = powerkit_retina_images_get_register_sizes(); $save_sizes = array(); foreach ( $images_sizes as $_size => $size_data ) { if ( ! in_array( $_size, (array) $value, true ) ) { $save_sizes[] = $_size; } } return $save_sizes; } /** * Field | Sizes. * * @since 1.0.0 */ public function powerkit_retina_images_sizes_callback() { ?> $size_data ) { if ( in_array( $_size, (array) $filter_sizes, true ) ) { $checked = false; } else { $checked = true; } ?>