WP_Widget_Block::get_dynamic_classname( string $content ): string

103	private function get_dynamic_classname( $content ) {104		$blocks = parse_blocks( $content );105 106		$block_name = isset( $blocks[0] ) ? $blocks[0]['blockName'] : null;107 108		switch ( $block_name ) {109			case 'core/paragraph':110				$classname = 'widget_block widget_text';111				break;112			case 'core/calendar':113				$classname = 'widget_block widget_calendar';114				break;115			case 'core/search':116				$classname = 'widget_block widget_search';117				break;118			case 'core/html':119				$classname = 'widget_block widget_custom_html';120				break;121			case 'core/archives':122				$classname = 'widget_block widget_archive';123				break;124			case 'core/latest-posts':125				$classname = 'widget_block widget_recent_entries';126				break;127			case 'core/latest-comments':128				$classname = 'widget_block widget_recent_comments';129				break;130			case 'core/tag-cloud':131				$classname = 'widget_block widget_tag_cloud';132				break;133			case 'core/categories':134				$classname = 'widget_block widget_categories';135				break;136			case 'core/audio':137				$classname = 'widget_block widget_media_audio';138				break;139			case 'core/video':140				$classname = 'widget_block widget_media_video';141				break;142			case 'core/image':143				$classname = 'widget_block widget_media_image';144				break;145			case 'core/gallery':146				$classname = 'widget_block widget_media_gallery';147				break;148			case 'core/rss':149				$classname = 'widget_block widget_rss';150				break;151			default:152				$classname = 'widget_block';153		}154 155		/**156		 * The classname used in the block widget's container HTML.157		 *158		 * This can be set according to the name of the block contained by the block widget.159		 *160		 * @since 5.8.0161		 *162		 * @param string $classname  The classname to be used in the block widget's container HTML,163		 *                           e.g. 'widget_block widget_text'.164		 * @param string $block_name The name of the block contained by the block widget,165		 *                           e.g. 'core/paragraph'.166		 */167		return apply_filters( 'widget_block_dynamic_classname', $classname, $block_name );168	}