72 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			72 lines
		
	
	
		
			1.7 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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 * @since 5.6.0
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 */
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/**
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 * Gets the generated classname from a given block name.
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 *
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 * @since 5.6.0
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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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	 * @since 5.6.0
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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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 * Adds the generated classnames to the output.
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 *
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 * @since 5.6.0
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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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 * @return array Block CSS classes and inline styles.
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 */
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function wp_apply_generated_classname_support( $block_type ) {
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	$attributes                      = array();
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	$has_generated_classname_support = block_has_support( $block_type, 'className', true );
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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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