1 <?php

     2 /**

     3  * Server-side rendering of the `core/tag-cloud` block.

     4  *

     5  * @package WordPress

     6  */

     7 

     8 /**

     9  * Renders the `core/tag-cloud` block on server.

    10  *

    11  * @param array $attributes The block attributes.

    12  *

    13  * @return string Returns the tag cloud for selected taxonomy.

    14  */

    15 function render_block_core_tag_cloud( $attributes ) {

    16 	$class = isset( $attributes['align'] ) ?

    17 		"wp-block-tag-cloud align{$attributes['align']}" :

    18 		'wp-block-tag-cloud';

    19 

    20 	if ( isset( $attributes['className'] ) ) {

    21 		$class .= ' ' . $attributes['className'];

    22 	}

    23 

    24 	$args = array(

    25 		'echo'       => false,

    26 		'taxonomy'   => $attributes['taxonomy'],

    27 		'show_count' => $attributes['showTagCounts'],

    28 	);

    29 

    30 	$tag_cloud = wp_tag_cloud( $args );

    31 

    32 	if ( ! $tag_cloud ) {

    33 		$tag_cloud = esc_html( __( 'No terms to show.' ) );

    34 	}

    35 

    36 	return sprintf(

    37 		'<p class="%1$s">%2$s</p>',

    38 		esc_attr( $class ),

    39 		$tag_cloud

    40 	);

    41 }

    42 

    43 /**

    44  * Registers the `core/tag-cloud` block on server.

    45  */

    46 function register_block_core_tag_cloud() {

    47 	register_block_type(

    48 		'core/tag-cloud',

    49 		array(

    50 			'attributes'      => array(

    51 				'taxonomy'      => array(

    52 					'type'    => 'string',

    53 					'default' => 'post_tag',

    54 				),

    55 				'className'     => array(

    56 					'type' => 'string',

    57 				),

    58 				'showTagCounts' => array(

    59 					'type'    => 'boolean',

    60 					'default' => false,

    61 				),

    62 				'align'         => array(

    63 					'type' => 'string',

    64 				),

    65 			),

    66 			'render_callback' => 'render_block_core_tag_cloud',

    67 		)

    68 	);

    69 }

    70 

    71 add_action( 'init', 'register_block_core_tag_cloud' );