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编辑：custom-classname.php

<?php
/**
 * Custom classname block support flag.
 *
 * @package WordPress
 * @since 5.6.0
 */

/**
 * Registers the custom classname block attribute for block types that support it.
 *
 * @since 5.6.0
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_custom_classname_support( $block_type ) {
	$has_custom_classname_support = block_has_support( $block_type, 'customClassName', true );

if ( $has_custom_classname_support ) {
		if ( ! $block_type->attributes ) {
			$block_type->attributes = array();
		}

if ( ! array_key_exists( 'className', $block_type->attributes ) ) {
			$block_type->attributes['className'] = array(
				'type' => 'string',
			);
		}
	}
}

/**
 * Adds the custom classnames to the output.
 *
 * @since 5.6.0
 * @access private
 *
 * @param  WP_Block_Type $block_type       Block Type.
 * @param  array         $block_attributes Block attributes.
 *
 * @return array Block CSS classes and inline styles.
 */
function wp_apply_custom_classname_support( $block_type, $block_attributes ) {
	$has_custom_classname_support = block_has_support( $block_type, 'customClassName', true );
	$attributes                   = array();
	if ( $has_custom_classname_support ) {
		$has_custom_classnames = array_key_exists( 'className', $block_attributes );

if ( $has_custom_classnames ) {
			$attributes['class'] = $block_attributes['className'];
		}
	}

return $attributes;
}

// Register the block support.
WP_Block_Supports::get_instance()->register(
	'custom-classname',
	array(
		'register_attribute' => 'wp_register_custom_classname_support',
		'apply'              => 'wp_apply_custom_classname_support',
	)
);

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aria-label.php	-rw-r--r--	1.57 KB	2025-03-04 18:06	编辑下载删除
background.php	-rw-r--r--	4.05 KB	2025-12-03 02:17	编辑下载删除
border.php	-rw-r--r--	6.27 KB	2023-09-29 14:20	编辑下载删除
colors.php	-rw-r--r--	5.81 KB	2023-09-29 14:20	编辑下载删除
custom-classname.php	-rw-r--r--	1.64 KB	2023-08-10 20:48	编辑下载删除
dimensions.php	-rw-r--r--	5.28 KB	2024-01-31 07:54	编辑下载删除
position.php	-rw-r--r--	4.24 KB	2023-09-26 17:47	编辑下载删除
settings.php	-rw-r--r--	4.52 KB	2023-09-26 17:47	编辑下载删除
typography.php	-rw-r--r--	29.08 KB	2025-12-03 02:17	编辑下载删除