70 lines
1.8 KiB
PHP
70 lines
1.8 KiB
PHP
<?php
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/**
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* Generated classname block support flag.
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*
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* @package WordPress
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*/
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/**
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* Get the generated classname from a given block name.
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*
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* @access private
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*
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* @param string $block_name Block Name.
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* @return string Generated classname.
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*/
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function wp_get_block_default_classname( $block_name ) {
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// Generated HTML classes for blocks follow the `wp-block-{name}` nomenclature.
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// Blocks provided by WordPress drop the prefixes 'core/' or 'core-' (historically used in 'core-embed/').
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$classname = 'wp-block-' . preg_replace(
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'/^core-/',
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'',
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str_replace( '/', '-', $block_name )
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);
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/**
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* Filters the default block className for server rendered blocks.
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*
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* @param string $class_name The current applied classname.
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* @param string $block_name The block name.
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*/
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$classname = apply_filters( 'block_default_classname', $classname, $block_name );
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return $classname;
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}
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/**
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* Add the generated classnames to the output.
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*
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* @access private
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*
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* @param WP_Block_Type $block_type Block Type.
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* @param array $block_attributes Block attributes.
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*
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* @return array Block CSS classes and inline styles.
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*/
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function wp_apply_generated_classname_support( $block_type, $block_attributes ) {
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$has_generated_classname_support = true;
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$attributes = array();
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if ( property_exists( $block_type, 'supports' ) ) {
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$has_generated_classname_support = wp_array_get( $block_type->supports, array( 'className' ), true );
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}
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if ( $has_generated_classname_support ) {
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$block_classname = wp_get_block_default_classname( $block_type->name );
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if ( $block_classname ) {
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$attributes['class'] = $block_classname;
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}
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}
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return $attributes;
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}
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// Register the block support.
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WP_Block_Supports::get_instance()->register(
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'generated-classname',
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array(
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'apply' => 'wp_apply_generated_classname_support',
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)
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);
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