first commit

wp-includes/blocks/tag-cloud.php

@@ -0,0 +1,54 @@
+<?php
+/**
+ * Server-side rendering of the `core/tag-cloud` block.
+ *
+ * @package WordPress
+ */
+
+/**
+ * Renders the `core/tag-cloud` block on server.
+ *
+ * @param array $attributes The block attributes.
+ *
+ * @return string Returns the tag cloud for selected taxonomy.
+ */
+function render_block_core_tag_cloud( $attributes ) {
+	$smallest_font_size = $attributes['smallestFontSize'];
+	$unit               = ( preg_match( '/^[0-9.]+(?P<unit>[a-z%]+)$/i', $smallest_font_size, $m ) ? $m['unit'] : 'pt' );
+
+	$args      = array(
+		'echo'       => false,
+		'unit'       => $unit,
+		'taxonomy'   => $attributes['taxonomy'],
+		'show_count' => $attributes['showTagCounts'],
+		'number'     => $attributes['numberOfTags'],
+		'smallest'   => floatVal( $attributes['smallestFontSize'] ),
+		'largest'    => floatVal( $attributes['largestFontSize'] ),
+	);
+	$tag_cloud = wp_tag_cloud( $args );
+
+	if ( ! $tag_cloud ) {
+		$tag_cloud = __( 'There&#8217;s no content to show here yet.' );
+	}
+
+	$wrapper_attributes = get_block_wrapper_attributes();
+
+	return sprintf(
+		'<p %1$s>%2$s</p>',
+		$wrapper_attributes,
+		$tag_cloud
+	);
+}
+
+/**
+ * Registers the `core/tag-cloud` block on server.
+ */
+function register_block_core_tag_cloud() {
+	register_block_type_from_metadata(
+		__DIR__ . '/tag-cloud',
+		array(
+			'render_callback' => 'render_block_core_tag_cloud',
+		)
+	);
+}
+add_action( 'init', 'register_block_core_tag_cloud' );