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wp_render_block_style_variation_class_name › WordPress Function

Since6.6.0
Deprecatedn/a
› wp_render_block_style_variation_class_name ( $block_content, $block )
Access:
  • private
Parameters: (2)
  • (string) $block_content Rendered block content.
    Required: Yes
  • (array) $block Block object.
    Required: Yes
See:
Returns:
  • (string) Filtered block content.
Defined at:
Codex:

Ensures the variation block support class name generated and added to block attributes in the `render_block_data` filter gets applied to the block's markup.



Related Functions: wp_create_block_style_variation_instance_name, wp_render_block_style_variation_support_styles, wp_enqueue_block_style_variation_styles, wp_get_block_style_variation_name_from_class, wp_resolve_block_style_variation_ref_values

Source 

function wp_render_block_style_variation_class_name( $block_content, $block ) {
	if ( ! $block_content || empty( $block['attrs']['className'] ) ) {
		return $block_content;
	}

	/*
	 * Matches a class prefixed by `is-style`, followed by the
	 * variation slug, then `--`, and finally an instance number.
	 */
	preg_match( '/\bis-style-(\S+?--\d+)\b/', $block['attrs']['className'], $matches );

	if ( empty( $matches ) ) {
		return $block_content;
	}

	$tags = new WP_HTML_Tag_Processor( $block_content );

	if ( $tags->next_tag() ) {
		/*
		 * Ensure the variation instance class name set in the
		 * `render_block_data` filter is applied in markup.
		 * See `wp_render_block_style_variation_support_styles`.
		 */
		$tags->add_class( $matches[0] );
	}

	return $tags->get_updated_html();
}